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/* Copyright (c) Mark J. Kilgard, 1994, 1997.  */

/* This program is freely distributable without licensing fees 
   and is provided without guarantee or warrantee expressed or 
   implied. This program is -not- in the public domain. */

/* Example for PC game developers to show how to *combine* texturing,
   reflections, and projected shadows all in real-time with OpenGL.
   Robust reflections use stenciling.  Robust projected shadows
   use both stenciling and polygon offset.  PC game programmers
   should realize that neither stenciling nor polygon offset are 
   supported by Direct3D, so these real-time rendering algorithms
   are only really viable with OpenGL. 
   
   The program has modes for disabling the stenciling and polygon
   offset uses.  It is worth running this example with these features
   toggled off so you can see the sort of artifacts that result.
   
   Notice that the floor texturing, reflections, and shadowing
   all co-exist properly. */

/* When you run this program:  Left mouse button controls the
   view.  Middle mouse button controls light position (left &
   right rotates light around dino; up & down moves light
   position up and down).  Right mouse button pops up menu. */

/* Check out the comments in the "redraw" routine to see how the
   reflection blending and surface stenciling is done.  You can
   also see in "redraw" how the projected shadows are rendered,
   including the use of stenciling and polygon offset. */

/* This program is derived from glutdino.c */

/* Compile: cc -o dinoshade dinoshade.c -lglut -lGLU -lGL -lXmu -lXext -lX11 -lm */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>       /* for cos(), sin(), and sqrt() */
#include <GL/glut.h>    /* OpenGL Utility Toolkit header */

/* Some <math.h> files do not define M_PI... */
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif

/* Variable controlling various rendering modes. */
static int stencilReflection = 1, stencilShadow = 1, offsetShadow = 1;
static int renderShadow = 1, renderDinosaur = 1, renderReflection = 1;
static int linearFiltering = 0, useMipmaps = 0, useTexture = 1;
static int reportSpeed = 0;
static int animation = 1;
static GLboolean lightSwitch = GL_TRUE;
static int directionalLight = 1;
static int forceExtension = 0;

/* Time varying or user-controled variables. */
static float jump = 0.0;
static float lightAngle = 0.0, lightHeight = 20;
GLfloat angle = -150;   /* in degrees */
GLfloat angle2 = 30;   /* in degrees */

int moving, startx, starty;
int lightMoving = 0, lightStartX, lightStartY;

enum {
  MISSING, EXTENSION, ONE_DOT_ONE
};
int polygonOffsetVersion;

static GLdouble bodyWidth = 3.0;
/* *INDENT-OFF* */
static GLfloat body[][2] = { {0, 3}, {1, 1}, {5, 1}, {8, 4}, {10, 4}, {11, 5},
  {11, 11.5}, {13, 12}, {13, 13}, {10, 13.5}, {13, 14}, {13, 15}, {11, 16},
  {8, 16}, {7, 15}, {7, 13}, {8, 12}, {7, 11}, {6, 6}, {4, 3}, {3, 2},
  {1, 2} };
static GLfloat arm[][2] = { {8, 10}, {9, 9}, {10, 9}, {13, 8}, {14, 9}, {16, 9},
  {15, 9.5}, {16, 10}, {15, 10}, {15.5, 11}, {14.5, 10}, {14, 11}, {14, 10},
  {13, 9}, {11, 11}, {9, 11} };
static GLfloat leg[][2] = { {8, 6}, {8, 4}, {9, 3}, {9, 2}, {8, 1}, {8, 0.5}, {9, 0},
  {12, 0}, {10, 1}, {10, 2}, {12, 4}, {11, 6}, {10, 7}, {9, 7} };
static GLfloat eye[][2] = { {8.75, 15}, {9, 14.7}, {9.6, 14.7}, {10.1, 15},
  {9.6, 15.25}, {9, 15.25} };
static GLfloat lightPosition[4];
static GLfloat lightColor[] = {0.8, 1.0, 0.8, 1.0}; /* green-tinted */
static GLfloat skinColor[] = {0.1, 1.0, 0.1, 1.0}, eyeColor[] = {1.0, 0.2, 0.2, 1.0};
/* *INDENT-ON* */

/* Nice floor texture tiling pattern. */
static char *circles[] = {
  "....xxxx........",
  "..xxxxxxxx......",
  ".xxxxxxxxxx.....",
  ".xxx....xxx.....",
  "xxx......xxx....",
  "xxx......xxx....",
  "xxx......xxx....",
  "xxx......xxx....",
  ".xxx....xxx.....",
  ".xxxxxxxxxx.....",
  "..xxxxxxxx......",
  "....xxxx........",
  "................",
  "................",
  "................",
  "................",
};

static void
makeFloorTexture(void)
{
  GLubyte floorTexture[16][16][3];
  GLubyte *loc;
  int s, t;

  /* Setup RGB image for the texture. */
  loc = (GLubyte*) floorTexture;
  for (t = 0; t < 16; t++) {
    for (s = 0; s < 16; s++) {
      if (circles[t][s] == 'x') {
	/* Nice green. */
        loc[0] = 0x1f;
        loc[1] = 0x8f;
        loc[2] = 0x1f;
      } else {
	/* Light gray. */
        loc[0] = 0xaa;
        loc[1] = 0xaa;
        loc[2] = 0xaa;
      }
      loc += 3;
    }
  }

  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);

  if (useMipmaps) {
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
      GL_LINEAR_MIPMAP_LINEAR);
    gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 16, 16,
      GL_RGB, GL_UNSIGNED_BYTE, floorTexture);
  } else {
    if (linearFiltering) {
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    } else {
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    }
    glTexImage2D(GL_TEXTURE_2D, 0, 3, 16, 16, 0,
      GL_RGB, GL_UNSIGNED_BYTE, floorTexture);
  }
}

enum {
  X, Y, Z, W
};
enum {
  A, B, C, D
};

/* Create a matrix that will project the desired shadow. */
void
shadowMatrix(GLfloat shadowMat[4][4],
  GLfloat groundplane[4],
  GLfloat lightpos[4])
{
  GLfloat dot;

  /* Find dot product between light position vector and ground plane normal. */
  dot = groundplane[X] * lightpos[X] +
    groundplane[Y] * lightpos[Y] +
    groundplane[Z] * lightpos[Z] +
    groundplane[W] * lightpos[W];

  shadowMat[0][0] = dot - lightpos[X] * groundplane[X];
  shadowMat[1][0] = 0.f - lightpos[X] * groundplane[Y];
  shadowMat[2][0] = 0.f - lightpos[X] * groundplane[Z];
  shadowMat[3][0] = 0.f - lightpos[X] * groundplane[W];

  shadowMat[X][1] = 0.f - lightpos[Y] * groundplane[X];
  shadowMat[1][1] = dot - lightpos[Y] * groundplane[Y];
  shadowMat[2][1] = 0.f - lightpos[Y] * groundplane[Z];
  shadowMat[3][1] = 0.f - lightpos[Y] * groundplane[W];

  shadowMat[X][2] = 0.f - lightpos[Z] * groundplane[X];
  shadowMat[1][2] = 0.f - lightpos[Z] * groundplane[Y];
  shadowMat[2][2] = dot - lightpos[Z] * groundplane[Z];
  shadowMat[3][2] = 0.f - lightpos[Z] * groundplane[W];

  shadowMat[X][3] = 0.f - lightpos[W] * groundplane[X];
  shadowMat[1][3] = 0.f - lightpos[W] * groundplane[Y];
  shadowMat[2][3] = 0.f - lightpos[W] * groundplane[Z];
  shadowMat[3][3] = dot - lightpos[W] * groundplane[W];

}

/* Find the plane equation given 3 points. */
void
findPlane(GLfloat plane[4],
  GLfloat v0[3], GLfloat v1[3], GLfloat v2[3])
{
  GLfloat vec0[3], vec1[3];

  /* Need 2 vectors to find cross product. */
  vec0[X] = v1[X] - v0[X];
  vec0[Y] = v1[Y] - v0[Y];
  vec0[Z] = v1[Z] - v0[Z];

  vec1[X] = v2[X] - v0[X];
  vec1[Y] = v2[Y] - v0[Y];
  vec1[Z] = v2[Z] - v0[Z];

  /* find cross product to get A, B, and C of plane equation */
  plane[A] = vec0[Y] * vec1[Z] - vec0[Z] * vec1[Y];
  plane[B] = -(vec0[X] * vec1[Z] - vec0[Z] * vec1[X]);
  plane[C] = vec0[X] * vec1[Y] - vec0[Y] * vec1[X];

  plane[D] = -(plane[A] * v0[X] + plane[B] * v0[Y] + plane[C] * v0[Z]);
}

void
extrudeSolidFromPolygon(GLfloat data[][2], unsigned int dataSize,
  GLdouble thickness, GLuint side, GLuint edge, GLuint whole)
{
  static GLUtriangulatorObj *tobj = NULL;
  GLdouble vertex[3], dx, dy, len;
  int i;
  int count = (int) (dataSize / (2 * sizeof(GLfloat)));

  if (tobj == NULL) {
    tobj = gluNewTess();  /* create and initialize a GLU
                             polygon tesselation object */
    gluTessCallback(tobj, GLU_BEGIN, glBegin);
    gluTessCallback(tobj, GLU_VERTEX, glVertex2fv);  /* semi-tricky */
    gluTessCallback(tobj, GLU_END, glEnd);
  }
  glNewList(side, GL_COMPILE);
  glShadeModel(GL_SMOOTH);  /* smooth minimizes seeing
                               tessellation */
  gluBeginPolygon(tobj);
  for (i = 0; i < count; i++) {
    vertex[0] = data[i][0];
    vertex[1] = data[i][1];
    vertex[2] = 0;
    gluTessVertex(tobj, vertex, data[i]);
  }
  gluEndPolygon(tobj);
  glEndList();
  glNewList(edge, GL_COMPILE);
  glShadeModel(GL_FLAT);  /* flat shade keeps angular hands
                             from being "smoothed" */
  glBegin(GL_QUAD_STRIP);
  for (i = 0; i <= count; i++) {
    /* mod function handles closing the edge */
    glVertex3f(data[i % count][0], data[i % count][1], 0.0);
    glVertex3f(data[i % count][0], data[i % count][1], thickness);
    /* Calculate a unit normal by dividing by Euclidean
       distance. We * could be lazy and use
       glEnable(GL_NORMALIZE) so we could pass in * arbitrary
       normals for a very slight performance hit. */
    dx = data[(i + 1) % count][1] - data[i % count][1];
    dy = data[i % count][0] - data[(i + 1) % count][0];
    len = sqrt(dx * dx + dy * dy);
    glNormal3f(dx / len, dy / len, 0.0);
  }
  glEnd();
  glEndList();
  glNewList(whole, GL_COMPILE);
  glFrontFace(GL_CW);
  glCallList(edge);
  glNormal3f(0.0, 0.0, -1.0);  /* constant normal for side */
  glCallList(side);
  glPushMatrix();
  glTranslatef(0.0, 0.0, thickness);
  glFrontFace(GL_CCW);
  glNormal3f(0.0, 0.0, 1.0);  /* opposite normal for other side */
  glCallList(side);
  glPopMatrix();
  glEndList();
}

/* Enumerants for refering to display lists. */
typedef enum {
  RESERVED, BODY_SIDE, BODY_EDGE, BODY_WHOLE, ARM_SIDE, ARM_EDGE, ARM_WHOLE,
  LEG_SIDE, LEG_EDGE, LEG_WHOLE, EYE_SIDE, EYE_EDGE, EYE_WHOLE
} displayLists;

static void
makeDinosaur(void)
{
  extrudeSolidFromPolygon(body, sizeof(body), bodyWidth,
    BODY_SIDE, BODY_EDGE, BODY_WHOLE);
  extrudeSolidFromPolygon(arm, sizeof(arm), bodyWidth / 4,
    ARM_SIDE, ARM_EDGE, ARM_WHOLE);
  extrudeSolidFromPolygon(leg, sizeof(leg), bodyWidth / 2,
    LEG_SIDE, LEG_EDGE, LEG_WHOLE);
  extrudeSolidFromPolygon(eye, sizeof(eye), bodyWidth + 0.2,
    EYE_SIDE, EYE_EDGE, EYE_WHOLE);
}

static void
drawDinosaur(void)

{
  glPushMatrix();
  /* Translate the dinosaur to be at (0,8,0). */
  glTranslatef(-8, 0, -bodyWidth / 2);
  glTranslatef(0.0, jump, 0.0);
  glMaterialfv(GL_FRONT, GL_DIFFUSE, skinColor);
  glCallList(BODY_WHOLE);
  glTranslatef(0.0, 0.0, bodyWidth);
  glCallList(ARM_WHOLE);
  glCallList(LEG_WHOLE);
  glTranslatef(0.0, 0.0, -bodyWidth - bodyWidth / 4);
  glCallList(ARM_WHOLE);
  glTranslatef(0.0, 0.0, -bodyWidth / 4);
  glCallList(LEG_WHOLE);
  glTranslatef(0.0, 0.0, bodyWidth / 2 - 0.1);
  glMaterialfv(GL_FRONT, GL_DIFFUSE, eyeColor);
  glCallList(EYE_WHOLE);
  glPopMatrix();
}

static GLfloat floorVertices[4][3] = {
  { -20.0, 0.0, 20.0 },
  { 20.0, 0.0, 20.0 },
  { 20.0, 0.0, -20.0 },
  { -20.0, 0.0, -20.0 },
};

/* Draw a floor (possibly textured). */
static void
drawFloor(void)
{
  glDisable(GL_LIGHTING);

  if (useTexture) {
    glEnable(GL_TEXTURE_2D);
  }

  glBegin(GL_QUADS);
    glTexCoord2f(0.0, 0.0);
    glVertex3fv(floorVertices[0]);
    glTexCoord2f(0.0, 16.0);
    glVertex3fv(floorVertices[1]);
    glTexCoord2f(16.0, 16.0);
    glVertex3fv(floorVertices[2]);
    glTexCoord2f(16.0, 0.0);
    glVertex3fv(floorVertices[3]);
  glEnd();

  if (useTexture) {
    glDisable(GL_TEXTURE_2D);
  }

  glEnable(GL_LIGHTING);
}

static GLfloat floorPlane[4];
static GLfloat floorShadow[4][4];

static void
redraw(void)
{
  int start, end;

  if (reportSpeed) {
    start = glutGet(GLUT_ELAPSED_TIME);
  }

  /* Clear; default stencil clears to zero. */
  if ((stencilReflection && renderReflection) || (stencilShadow && renderShadow)) {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
  } else {
    /* Avoid clearing stencil when not using it. */
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  }

  /* Reposition the light source. */
  lightPosition[0] = 12*cos(lightAngle);
  lightPosition[1] = lightHeight;
  lightPosition[2] = 12*sin(lightAngle);
  if (directionalLight) {
    lightPosition[3] = 0.0;
  } else {
    lightPosition[3] = 1.0;
  }

  shadowMatrix(floorShadow, floorPlane, lightPosition);

  glPushMatrix();
    /* Perform scene rotations based on user mouse input. */
    glRotatef(angle2, 1.0, 0.0, 0.0);
    glRotatef(angle, 0.0, 1.0, 0.0);
     
    /* Tell GL new light source position. */
    glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);

    if (renderReflection) {
      if (stencilReflection) {
        /* We can eliminate the visual "artifact" of seeing the "flipped"
  	   dinosaur underneath the floor by using stencil.  The idea is
	   draw the floor without color or depth update but so that 
	   a stencil value of one is where the floor will be.  Later when
	   rendering the dinosaur reflection, we will only update pixels
	   with a stencil value of 1 to make sure the reflection only
	   lives on the floor, not below the floor. */

        /* Don't update color or depth. */
        glDisable(GL_DEPTH_TEST);
        glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);

        /* Draw 1 into the stencil buffer. */
        glEnable(GL_STENCIL_TEST);
        glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
        glStencilFunc(GL_ALWAYS, 1, 0xffffffff);

        /* Now render floor; floor pixels just get their stencil set to 1. */
        drawFloor();

        /* Re-enable update of color and depth. */ 
        glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
        glEnable(GL_DEPTH_TEST);

        /* Now, only render where stencil is set to 1. */
        glStencilFunc(GL_EQUAL, 1, 0xffffffff);  /* draw if ==1 */
        glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
      }

      glPushMatrix();

        /* The critical reflection step: Reflect dinosaur through the floor
           (the Y=0 plane) to make a relection. */
        glScalef(1.0, -1.0, 1.0);

	/* Reflect the light position. */
        glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);

        /* To avoid our normals getting reversed and hence botched lighting
	   on the reflection, turn on normalize.  */
        glEnable(GL_NORMALIZE);
        glCullFace(GL_FRONT);

        /* Draw the reflected dinosaur. */
        drawDinosaur();

        /* Disable noramlize again and re-enable back face culling. */
        glDisable(GL_NORMALIZE);
        glCullFace(GL_BACK);

      glPopMatrix();

      /* Switch back to the unreflected light position. */
      glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);

      if (stencilReflection) {
        glDisable(GL_STENCIL_TEST);
      }
    }

    /* Back face culling will get used to only draw either the top or the
       bottom floor.  This let's us get a floor with two distinct
       appearances.  The top floor surface is reflective and kind of red.
       The bottom floor surface is not reflective and blue. */

    /* Draw "bottom" of floor in blue. */
    glFrontFace(GL_CW);  /* Switch face orientation. */
    glColor4f(0.1, 0.1, 0.7, 1.0);
    drawFloor();
    glFrontFace(GL_CCW);

    if (renderShadow) {
      if (stencilShadow) {
	/* Draw the floor with stencil value 3.  This helps us only 
	   draw the shadow once per floor pixel (and only on the
	   floor pixels). */
        glEnable(GL_STENCIL_TEST);
        glStencilFunc(GL_ALWAYS, 3, 0xffffffff);
        glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
      }
    }

    /* Draw "top" of floor.  Use blending to blend in reflection. */
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glColor4f(0.7, 0.0, 0.0, 0.3);
    glColor4f(1.0, 1.0, 1.0, 0.3);
    drawFloor();
    glDisable(GL_BLEND);

    if (renderDinosaur) {
      /* Draw "actual" dinosaur, not its reflection. */
      drawDinosaur();
    }

    if (renderShadow) {

      /* Render the projected shadow. */

      if (stencilShadow) {

        /* Now, only render where stencil is set above 2 (ie, 3 where
	   the top floor is).  Update stencil with 2 where the shadow
	   gets drawn so we don't redraw (and accidently reblend) the
	   shadow). */
        glStencilFunc(GL_LESS, 2, 0xffffffff);  /* draw if ==1 */
        glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
      }

      /* To eliminate depth buffer artifacts, we use polygon offset
	 to raise the depth of the projected shadow slightly so
	 that it does not depth buffer alias with the floor. */
      if (offsetShadow) {
	switch (polygonOffsetVersion) {
	case EXTENSION:
#ifdef GL_EXT_polygon_offset
	  glEnable(GL_POLYGON_OFFSET_EXT);
	  break;
#endif
#ifdef GL_VERSION_1_1
	case ONE_DOT_ONE:
          glEnable(GL_POLYGON_OFFSET_FILL);
	  break;
#endif
	case MISSING:
	  /* Oh well. */
	  break;
	}
      }

      /* Render 50% black shadow color on top of whatever the
         floor appareance is. */
      glEnable(GL_BLEND);
      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
      glDisable(GL_LIGHTING);  /* Force the 50% black. */
      glColor4f(0.0, 0.0, 0.0, 0.5);

      glPushMatrix();
	/* Project the shadow. */
        glMultMatrixf((GLfloat *) floorShadow);
        drawDinosaur();
      glPopMatrix();

      glDisable(GL_BLEND);
      glEnable(GL_LIGHTING);

      if (offsetShadow) {
	switch (polygonOffsetVersion) {
#ifdef GL_EXT_polygon_offset
	case EXTENSION:
	  glDisable(GL_POLYGON_OFFSET_EXT);
	  break;
#endif
#ifdef GL_VERSION_1_1
	case ONE_DOT_ONE:
          glDisable(GL_POLYGON_OFFSET_FILL);
	  break;
#endif
	case MISSING:
	  /* Oh well. */
	  break;
	}
      }
      if (stencilShadow) {
        glDisable(GL_STENCIL_TEST);
      }
    }

    glPushMatrix();
    glDisable(GL_LIGHTING);
    glColor3f(1.0, 1.0, 0.0);
    if (directionalLight) {
      /* Draw an arrowhead. */
      glDisable(GL_CULL_FACE);
      glTranslatef(lightPosition[0], lightPosition[1], lightPosition[2]);
      glRotatef(lightAngle * -180.0 / M_PI, 0, 1, 0);
      glRotatef(atan(lightHeight/12) * 180.0 / M_PI, 0, 0, 1);
      glBegin(GL_TRIANGLE_FAN);
	glVertex3f(0, 0, 0);
	glVertex3f(2, 1, 1);
	glVertex3f(2, -1, 1);
	glVertex3f(2, -1, -1);
	glVertex3f(2, 1, -1);
	glVertex3f(2, 1, 1);
      glEnd();
      /* Draw a white line from light direction. */
      glColor3f(1.0, 1.0, 1.0);
      glBegin(GL_LINES);
	glVertex3f(0, 0, 0);
	glVertex3f(5, 0, 0);
      glEnd();
      glEnable(GL_CULL_FACE);
    } else {
      /* Draw a yellow ball at the light source. */
      glTranslatef(lightPosition[0], lightPosition[1], lightPosition[2]);
      glutSolidSphere(1.0, 5, 5);
    }
    glEnable(GL_LIGHTING);
    glPopMatrix();

  glPopMatrix();

  if (reportSpeed) {
    glFinish();
    end = glutGet(GLUT_ELAPSED_TIME);
    printf("Speed %.3g frames/sec (%d ms)\n", 1000.0/(end-start), end-start);
  }

  glutSwapBuffers();
}

/* ARGSUSED2 */
static void
mouse(int button, int state, int x, int y)
{
  if (button == GLUT_LEFT_BUTTON) {
    if (state == GLUT_DOWN) {
      moving = 1;
      startx = x;
      starty = y;
    }
    if (state == GLUT_UP) {
      moving = 0;
    }
  }
  if (button == GLUT_MIDDLE_BUTTON) {
    if (state == GLUT_DOWN) {
      lightMoving = 1;
      lightStartX = x;
      lightStartY = y;
    }
    if (state == GLUT_UP) {
      lightMoving = 0;
    }
  }
}

/* ARGSUSED1 */
static void
motion(int x, int y)
{
  if (moving) {
    angle = angle + (x - startx);
    angle2 = angle2 + (y - starty);
    startx = x;
    starty = y;
    glutPostRedisplay();
  }
  if (lightMoving) {
    lightAngle += (x - lightStartX)/40.0;
    lightHeight += (lightStartY - y)/20.0;
    lightStartX = x;
    lightStartY = y;
    glutPostRedisplay();
  }
}

/* Advance time varying state when idle callback registered. */
static void
idle(void)
{
  static float time = 0.0;

  time = glutGet(GLUT_ELAPSED_TIME) / 500.0;

  jump = 4.0 * fabs(sin(time)*0.5);
  if (!lightMoving) {
    lightAngle += 0.03;
  }
  glutPostRedisplay();
}

enum {
  M_NONE, M_MOTION, M_LIGHT, M_TEXTURE, M_SHADOWS, M_REFLECTION, M_DINOSAUR,
  M_STENCIL_REFLECTION, M_STENCIL_SHADOW, M_OFFSET_SHADOW,
  M_POSITIONAL, M_DIRECTIONAL, M_PERFORMANCE
};

static void
controlLights(int value)
{
  switch (value) {
  case M_NONE:
    return;
  case M_MOTION:
    animation = 1 - animation;
    if (animation) {
      glutIdleFunc(idle);
    } else {
      glutIdleFunc(NULL);
    }
    break;
  case M_LIGHT:
    lightSwitch = !lightSwitch;
    if (lightSwitch) {
      glEnable(GL_LIGHT0);
    } else {
      glDisable(GL_LIGHT0);
    }
    break;
  case M_TEXTURE:
    useTexture = !useTexture;
    break;
  case M_SHADOWS:
    renderShadow = 1 - renderShadow;
    break;
  case M_REFLECTION:
    renderReflection = 1 - renderReflection;
    break;
  case M_DINOSAUR:
    renderDinosaur = 1 - renderDinosaur;
    break;
  case M_STENCIL_REFLECTION:
    stencilReflection = 1 - stencilReflection;
    break;
  case M_STENCIL_SHADOW:
    stencilShadow = 1 - stencilShadow;
    break;
  case M_OFFSET_SHADOW:
    offsetShadow = 1 - offsetShadow;
    break;
  case M_POSITIONAL:
    directionalLight = 0;
    break;
  case M_DIRECTIONAL:
    directionalLight = 1;
    break;
  case M_PERFORMANCE:
    reportSpeed = 1 - reportSpeed;
    break;
  }
  glutPostRedisplay();
}

/* When not visible, stop animating.  Restart when visible again. */
static void 
visible(int vis)
{
  if (vis == GLUT_VISIBLE) {
    if (animation)
      glutIdleFunc(idle);
  } else {
    if (!animation)
      glutIdleFunc(NULL);
  }
}

/* Press any key to redraw; good when motion stopped and
   performance reporting on. */
/* ARGSUSED */
static void
key(unsigned char c, int x, int y)
{
  if (c == 27) {
    exit(0);  /* IRIS GLism, Escape quits. */
  }
  glutPostRedisplay();
}

/* Press any key to redraw; good when motion stopped and
   performance reporting on. */
/* ARGSUSED */
static void
special(int k, int x, int y)
{
  glutPostRedisplay();
}

static int
supportsOneDotOne(void)
{
  const char *version;
  int major, minor;

  version = (char *) glGetString(GL_VERSION);
  if (sscanf(version, "%d.%d", &major, &minor) == 2)
    return major >= 1 && minor >= 1;
  return 0;            /* OpenGL version string malformed! */
}

int
main(int argc, char **argv)
{
  int i;

  glutInit(&argc, argv);

  for (i=1; i<argc; i++) {
    if (!strcmp("-linear", argv[i])) {
      linearFiltering = 1;
    } else if (!strcmp("-mipmap", argv[i])) {
      useMipmaps = 1;
    } else if (!strcmp("-ext", argv[i])) {
      forceExtension = 1;
    }
  }

  glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL);

#if 0
  /* In GLUT 4.0, you'll be able to do this an be sure to
     get 2 bits of stencil if the machine has it for you. */
  glutInitDisplayString("samples stencil>=2 rgb double depth");
#endif

  glutCreateWindow("Shadowy Leapin' Lizards");

  if (glutGet(GLUT_WINDOW_STENCIL_SIZE) <= 1) {
    printf("dinoshade: Sorry, I need at least 2 bits of stencil.\n");
    exit(1);
  }

  /* Register GLUT callbacks. */
  glutDisplayFunc(redraw);
  glutMouseFunc(mouse);
  glutMotionFunc(motion);
  glutVisibilityFunc(visible);
  glutKeyboardFunc(key);
  glutSpecialFunc(special);

  glutCreateMenu(controlLights);

  glutAddMenuEntry("Toggle motion", M_MOTION);
  glutAddMenuEntry("-----------------------", M_NONE);
  glutAddMenuEntry("Toggle light", M_LIGHT);
  glutAddMenuEntry("Toggle texture", M_TEXTURE);
  glutAddMenuEntry("Toggle shadows", M_SHADOWS);
  glutAddMenuEntry("Toggle reflection", M_REFLECTION);
  glutAddMenuEntry("Toggle dinosaur", M_DINOSAUR);
  glutAddMenuEntry("-----------------------", M_NONE);
  glutAddMenuEntry("Toggle reflection stenciling", M_STENCIL_REFLECTION);
  glutAddMenuEntry("Toggle shadow stenciling", M_STENCIL_SHADOW);
  glutAddMenuEntry("Toggle shadow offset", M_OFFSET_SHADOW);
  glutAddMenuEntry("----------------------", M_NONE);
  glutAddMenuEntry("Positional light", M_POSITIONAL);
  glutAddMenuEntry("Directional light", M_DIRECTIONAL);
  glutAddMenuEntry("-----------------------", M_NONE);
  glutAddMenuEntry("Toggle performance", M_PERFORMANCE);
  glutAttachMenu(GLUT_RIGHT_BUTTON);
  makeDinosaur();

#ifdef GL_VERSION_1_1
  if (supportsOneDotOne() && !forceExtension) {
    polygonOffsetVersion = ONE_DOT_ONE;
    glPolygonOffset(-2.0, -9.0);
  } else
#endif
  {
#ifdef GL_EXT_polygon_offset
  /* check for the polygon offset extension */
  if (glutExtensionSupported("GL_EXT_polygon_offset")) {
    polygonOffsetVersion = EXTENSION;
    glPolygonOffsetEXT(-2.0, -0.002);
  } else 
#endif
    {
      polygonOffsetVersion = MISSING;
      printf("\ndinoshine: Missing polygon offset.\n");
      printf("           Expect shadow depth aliasing artifacts.\n\n");
    }
  }

  glEnable(GL_CULL_FACE);
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_TEXTURE_2D);
  glLineWidth(3.0);

  glMatrixMode(GL_PROJECTION);
  gluPerspective( /* field of view in degree */ 40.0,
  /* aspect ratio */ 1.0,
    /* Z near */ 20.0, /* Z far */ 100.0);
  glMatrixMode(GL_MODELVIEW);
  gluLookAt(0.0, 8.0, 60.0,  /* eye is at (0,8,60) */
    0.0, 8.0, 0.0,      /* center is at (0,8,0) */
    0.0, 1.0, 0.);      /* up is in postivie Y direction */

  glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1);
  glLightfv(GL_LIGHT0, GL_DIFFUSE, lightColor);
  glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.1);
  glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, 0.05);
  glEnable(GL_LIGHT0);
  glEnable(GL_LIGHTING);

  makeFloorTexture();

  /* Setup floor plane for projected shadow calculations. */
  findPlane(floorPlane, floorVertices[1], floorVertices[2], floorVertices[3]);

  glutMainLoop();
  return 0;             /* ANSI C requires main to return int. */
}
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/* DO NOT MODIFY - automatically generated by generate_builtins.py */
/*
 * Copyright © 2010 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#include <stdio.h>
#include "main/core.h" /* for struct gl_shader */
#include "glsl_parser_extras.h"
#include "ir_reader.h"
#include "program.h"
#include "ast.h"

extern "C" struct gl_shader *
_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type);

gl_shader *
read_builtins(GLenum target, const char *protos, const char **functions, unsigned count)
{
   struct gl_context fakeCtx;
   fakeCtx.API = API_OPENGL;
   gl_shader *sh = _mesa_new_shader(NULL, 0, target);
   struct _mesa_glsl_parse_state *st =
      new(sh) _mesa_glsl_parse_state(&fakeCtx, target, sh);

   st->language_version = 130;
   st->symbols->language_version = 130;
   st->ARB_texture_rectangle_enable = true;
   st->EXT_texture_array_enable = true;
   _mesa_glsl_initialize_types(st);

   sh->ir = new(sh) exec_list;
   sh->symbols = st->symbols;

   /* Read the IR containing the prototypes */
   _mesa_glsl_read_ir(st, sh->ir, protos, true);

   /* Read ALL the function bodies, telling the IR reader not to scan for
    * prototypes (we've already created them).  The IR reader will skip any
    * signature that does not already exist as a prototype.
    */
   for (unsigned i = 0; i < count; i++) {
      _mesa_glsl_read_ir(st, sh->ir, functions[i], false);

      if (st->error) {
         printf("error reading builtin: %.35s ...\n", functions[i]);
         printf("Info log:\n%s\n", st->info_log);
         talloc_free(sh);
         return NULL;
      }
   }

   reparent_ir(sh->ir, sh);
   delete st;

   return sh;
}

static const char builtin_abs[] =
   "((function abs\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float abs (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 abs (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 abs (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 abs (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_acos[] =
   "((function acos\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float - (constant float (1.5707963))\n"
   "                                  (call asin ((var_ref x)))))))\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 - (constant float (1.5707963))\n"
   "                                 (call asin ((var_ref x)))))))\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 - (constant float (1.5707963))\n"
   "                                 (call asin ((var_ref x)))))))\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 - (constant float (1.5707963))\n"
   "                                 (call asin ((var_ref x)))))))\n"
   "))\n"
   ""
;
static const char builtin_acosh[] =
   "((function acosh\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float log (expression float + (var_ref x) (expression float sqrt (expression float - (expression float * (var_ref x) (var_ref x)) (constant float (1)))))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 log (expression vec2 + (var_ref x) (expression vec2 sqrt (expression vec2 - (expression vec2 * (var_ref x) (var_ref x)) (constant vec2 (1)))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 log (expression vec3 + (var_ref x) (expression vec3 sqrt (expression vec3 - (expression vec3 * (var_ref x) (var_ref x)) (constant vec3 (1)))))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 log (expression vec4 + (var_ref x) (expression vec4 sqrt (expression vec4 - (expression vec4 * (var_ref x) (var_ref x)) (constant vec4 (1)))))))))\n"
   "))\n"
   ""
;
static const char builtin_all[] =
   "((function all\n"
   "   (signature bool\n"
   "     (parameters\n"
   "       (declare (in) bvec2 arg0))\n"
   "     ((return (expression bool && (swiz x (var_ref arg0))(swiz y (var_ref arg0))))))\n"
   "\n"
   "   (signature bool\n"
   "     (parameters\n"
   "       (declare (in) bvec3 arg0))\n"
   "     ((return (expression bool && (expression bool && (swiz x (var_ref arg0))(swiz y (var_ref arg0))) (swiz z (var_ref arg0))))))\n"
   "\n"
   "   (signature bool\n"
   "     (parameters\n"
   "       (declare (in) bvec4 arg0))\n"
   "     ((return (expression bool && (expression bool && (expression bool && (swiz x (var_ref arg0))(swiz y (var_ref arg0))) (swiz z (var_ref arg0))) (swiz w (var_ref arg0))))))\n"
   "))\n"
   ""
;
static const char builtin_any[] =
   "((function any\n"
   "   (signature bool\n"
   "     (parameters\n"
   "       (declare (in) bvec2 arg0))\n"
   "     ((return (expression bool any (var_ref arg0)))))\n"
   "\n"
   "   (signature bool\n"
   "     (parameters\n"
   "       (declare (in) bvec3 arg0))\n"
   "     ((return (expression bool any (var_ref arg0)))))\n"
   "\n"
   "   (signature bool\n"
   "     (parameters\n"
   "       (declare (in) bvec4 arg0))\n"
   "     ((return (expression bool any (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_asin[] =
   "((function asin\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float *\n"
   "	       (expression float sign (var_ref x))\n"
   "	       (expression float -\n"
   "		(expression float *\n"
   "		 (constant float (3.1415926))\n"
   "		 (constant float (0.5)))\n"
   "		(expression float *\n"
   "		 (expression float sqrt\n"
   "		  (expression float -\n"
   "		   (constant float (1.0))\n"
   "		   (expression float abs (var_ref x))))\n"
   "		 (expression float +\n"
   "		  (constant float (1.5707288))\n"
   "		  (expression float *\n"
   "		   (expression float abs (var_ref x))\n"
   "		   (expression float +\n"
   "		    (constant float (-0.2121144))\n"
   "		    (expression float *\n"
   "		     (constant float (0.0742610))\n"
   "		     (expression float abs (var_ref x))))))))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 *\n"
   "	       (expression vec2 sign (var_ref x))\n"
   "	       (expression vec2 -\n"
   "		(expression float *\n"
   "		 (constant float (3.1415926))\n"
   "		 (constant float (0.5)))\n"
   "		(expression vec2 *\n"
   "		 (expression vec2 sqrt\n"
   "		  (expression vec2 -\n"
   "		   (constant float (1.0))\n"
   "		   (expression vec2 abs (var_ref x))))\n"
   "		 (expression vec2 +\n"
   "		  (constant float (1.5707288))\n"
   "		  (expression vec2 *\n"
   "		   (expression vec2 abs (var_ref x))\n"
   "		   (expression vec2 +\n"
   "		    (constant float (-0.2121144))\n"
   "		    (expression vec2 *\n"
   "		     (constant float (0.0742610))\n"
   "		     (expression vec2 abs (var_ref x))))))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 *\n"
   "	       (expression vec3 sign (var_ref x))\n"
   "	       (expression vec3 -\n"
   "		(expression float *\n"
   "		 (constant float (3.1415926))\n"
   "		 (constant float (0.5)))\n"
   "		(expression vec3 *\n"
   "		 (expression vec3 sqrt\n"
   "		  (expression vec3 -\n"
   "		   (constant float (1.0))\n"
   "		   (expression vec3 abs (var_ref x))))\n"
   "		 (expression vec3 +\n"
   "		  (constant float (1.5707288))\n"
   "		  (expression vec3 *\n"
   "		   (expression vec3 abs (var_ref x))\n"
   "		   (expression vec3 +\n"
   "		    (constant float (-0.2121144))\n"
   "		    (expression vec3 *\n"
   "		     (constant float (0.0742610))\n"
   "		     (expression vec3 abs (var_ref x))))))))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 *\n"
   "	       (expression vec4 sign (var_ref x))\n"
   "	       (expression vec4 -\n"
   "		(expression float *\n"
   "		 (constant float (3.1415926))\n"
   "		 (constant float (0.5)))\n"
   "		(expression vec4 *\n"
   "		 (expression vec4 sqrt\n"
   "		  (expression vec4 -\n"
   "		   (constant float (1.0))\n"
   "		   (expression vec4 abs (var_ref x))))\n"
   "		 (expression vec4 +\n"
   "		  (constant float (1.5707288))\n"
   "		  (expression vec4 *\n"
   "		   (expression vec4 abs (var_ref x))\n"
   "		   (expression vec4 +\n"
   "		    (constant float (-0.2121144))\n"
   "		    (expression vec4 *\n"
   "		     (constant float (0.0742610))\n"
   "		     (expression vec4 abs (var_ref x))))))))))))\n"
   "))\n"
   ""
;
static const char builtin_asinh[] =
   "((function asinh\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float log (expression float + (var_ref x) (expression float sqrt (expression float + (expression float * (var_ref x) (var_ref x)) (constant float (1)))))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 log (expression vec2 + (var_ref x) (expression vec2 sqrt (expression vec2 + (expression vec2 * (var_ref x) (var_ref x)) (constant vec2 (1)))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 log (expression vec3 + (var_ref x) (expression vec3 sqrt (expression vec3 + (expression vec3 * (var_ref x) (var_ref x)) (constant vec3 (1)))))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 log (expression vec4 + (var_ref x) (expression vec4 sqrt (expression vec4 + (expression vec4 * (var_ref x) (var_ref x)) (constant vec4 (1)))))))))\n"
   "))\n"
   ""
;
static const char builtin_atan[] =
   "((function atan\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float y_over_x))\n"
   "     ((return (call asin ((expression float *\n"
   "			   (var_ref y_over_x)\n"
   "			   (expression float rsq\n"
   "			    (expression float +\n"
   "			     (expression float *\n"
   "			      (var_ref y_over_x)\n"
   "			      (var_ref y_over_x))\n"
   "			     (constant float (1.0))))))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 y_over_x))\n"
   "     ((return (call asin ((expression vec2 *\n"
   "			   (var_ref y_over_x)\n"
   "			   (expression vec2 rsq\n"
   "			    (expression vec2 +\n"
   "			     (expression vec2 *\n"
   "			      (var_ref y_over_x)\n"
   "			      (var_ref y_over_x))\n"
   "			     (constant float (1.0))))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 y_over_x))\n"
   "     ((return (call asin ((expression vec3 *\n"
   "			   (var_ref y_over_x)\n"
   "			   (expression vec3 rsq\n"
   "			    (expression vec3 +\n"
   "			     (expression vec3 *\n"
   "			      (var_ref y_over_x)\n"
   "			      (var_ref y_over_x))\n"
   "			     (constant float (1.0))))))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 y_over_x))\n"
   "     ((return (call asin ((expression vec4 *\n"
   "			   (var_ref y_over_x)\n"
   "			   (expression vec4 rsq\n"
   "			    (expression vec4 +\n"
   "			     (expression vec4 *\n"
   "			      (var_ref y_over_x)\n"
   "			      (var_ref y_over_x))\n"
   "			     (constant float (1.0))))))))))\n"
   "\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in ) float y)\n"
   "      (declare (in ) float x)\n"
   "    )\n"
   "    (\n"
   "      (declare () float r)\n"
   "      (if (expression bool > (expression float abs (var_ref x)) (constant float (0.000100))) (\n"
   "        (assign (constant bool (1)) (x) (var_ref r) (call atan ((expression float / (var_ref y) (var_ref x)))))\n"
   "        (if (expression bool < (var_ref x) (constant float (0.000000)) ) (\n"
   "          (if (expression bool >= (var_ref y) (constant float (0.000000)) )\n"
   "              ((assign (constant bool (1)) (x) (var_ref r) (expression float + (var_ref r) (constant float (3.141593)))))\n"
   "              ((assign (constant bool (1)) (x) (var_ref r) (expression float - (var_ref r) (constant float (3.141593))))))\n"
   "        )\n"
   "        (\n"
   "        ))\n"
   "      )\n"
   "      (\n"
   "        (declare () float sgn)\n"
   "        (assign (constant bool (1)) (x) (var_ref sgn) (expression float sign (var_ref y)))\n"
   "        (assign (constant bool (1)) (x) (var_ref r) (expression float * (var_ref sgn) (constant float (1.5707965))))\n"
   "      ))\n"
   "\n"
   "      (return (var_ref r) )\n"
   "    ))\n"
   "\n"
   "\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 y)\n"
   "       (declare (in) vec2 x))\n"
   "     ((declare () vec2 r)\n"
   "      (assign (constant bool (1)) (x) (var_ref r)\n"
   "	      (call atan ((swiz x (var_ref y))\n"
   "			  (swiz x (var_ref x)))))\n"
   "      (assign (constant bool (1)) (y) (var_ref r)\n"
   "	      (call atan ((swiz y (var_ref y))\n"
   "			  (swiz y (var_ref x)))))\n"
   "      (return (var_ref r))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 y)\n"
   "       (declare (in) vec3 x))\n"
   "     ((declare () vec3 r)\n"
   "      (assign (constant bool (1)) (x) (var_ref r)\n"
   "	      (call atan ((swiz x (var_ref y))\n"
   "			  (swiz x (var_ref x)))))\n"
   "      (assign (constant bool (1)) (y) (var_ref r)\n"
   "	      (call atan ((swiz y (var_ref y))\n"
   "			  (swiz y (var_ref x)))))\n"
   "      (assign (constant bool (1)) (z) (var_ref r)\n"
   "	      (call atan ((swiz z (var_ref y))\n"
   "			  (swiz z (var_ref x)))))\n"
   "      (return (var_ref r))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 y)\n"
   "       (declare (in) vec4 x))\n"
   "     ((declare () vec4 r)\n"
   "      (assign (constant bool (1)) (x) (var_ref r)\n"
   "	      (call atan ((swiz x (var_ref y))\n"
   "			  (swiz x (var_ref x)))))\n"
   "      (assign (constant bool (1)) (y) (var_ref r)\n"
   "	      (call atan ((swiz y (var_ref y))\n"
   "			  (swiz y (var_ref x)))))\n"
   "      (assign (constant bool (1)) (z) (var_ref r)\n"
   "	      (call atan ((swiz z (var_ref y))\n"
   "			  (swiz z (var_ref x)))))\n"
   "      (assign (constant bool (1)) (w) (var_ref r)\n"
   "	      (call atan ((swiz w (var_ref y))\n"
   "			  (swiz w (var_ref x)))))\n"
   "      (return (var_ref r)))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_atanh[] =
   "((function atanh\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float * (constant float (0.5))\n"
   "                (expression float log\n"
   "		  (expression float /\n"
   "                    (expression float + (constant float (1)) (var_ref x))\n"
   "                    (expression float - (constant float (1)) (var_ref x))))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 * (constant vec2 (0.5))\n"
   "                (expression vec2 log\n"
   "		  (expression vec2 /\n"
   "                    (expression vec2 + (constant vec2 (1)) (var_ref x))\n"
   "                    (expression vec2 - (constant vec2 (1)) (var_ref x))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 * (constant vec3 (0.5))\n"
   "                (expression vec3 log\n"
   "		  (expression vec3 /\n"
   "                    (expression vec3 + (constant vec3 (1)) (var_ref x))\n"
   "                    (expression vec3 - (constant vec3 (1)) (var_ref x))))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 * (constant vec4 (0.5))\n"
   "                (expression vec4 log\n"
   "		  (expression vec4 /\n"
   "                    (expression vec4 + (constant vec4 (1)) (var_ref x))\n"
   "                    (expression vec4 - (constant vec4 (1)) (var_ref x))))))))\n"
   "))\n"
   ""
;
static const char builtin_ceil[] =
   "((function ceil\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float ceil (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 ceil (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 ceil (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 ceil (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_clamp[] =
   "((function clamp\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0)\n"
   "       (declare (in) float arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression float max (expression float min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1)\n"
   "       (declare (in) vec2 arg2))\n"
   "     ((return (expression vec2 max (expression vec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1)\n"
   "       (declare (in) vec3 arg2))\n"
   "     ((return (expression vec3 max (expression vec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1)\n"
   "       (declare (in) vec4 arg2))\n"
   "     ((return (expression vec4 max (expression vec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2  arg0)\n"
   "       (declare (in) float arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression vec2 max (expression vec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3  arg0)\n"
   "       (declare (in) float arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression vec3 max (expression vec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4  arg0)\n"
   "       (declare (in) float arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression vec4 max (expression vec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature int\n"
   "     (parameters\n"
   "       (declare (in) int arg0)\n"
   "       (declare (in) int arg1)\n"
   "       (declare (in) int arg2))\n"
   "     ((return (expression int max (expression int min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1)\n"
   "       (declare (in) ivec2 arg2))\n"
   "     ((return (expression ivec2 max (expression ivec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1)\n"
   "       (declare (in) ivec3 arg2))\n"
   "     ((return (expression ivec3 max (expression ivec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1)\n"
   "       (declare (in) ivec4 arg2))\n"
   "     ((return (expression ivec4 max (expression ivec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) int arg1)\n"
   "       (declare (in) int arg2))\n"
   "     ((return (expression ivec2 max (expression ivec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) int arg1)\n"
   "       (declare (in) int arg2))\n"
   "     ((return (expression ivec3 max (expression ivec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) int arg1)\n"
   "       (declare (in) int arg2))\n"
   "     ((return (expression ivec4 max (expression ivec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature uint\n"
   "     (parameters\n"
   "       (declare (in) uint arg0)\n"
   "       (declare (in) uint arg1)\n"
   "       (declare (in) uint arg2))\n"
   "     ((return (expression uint max (expression uint min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1)\n"
   "       (declare (in) uvec2 arg2))\n"
   "     ((return (expression uvec2 max (expression uvec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1)\n"
   "       (declare (in) uvec3 arg2))\n"
   "     ((return (expression uvec3 max (expression uvec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1)\n"
   "       (declare (in) uvec4 arg2))\n"
   "     ((return (expression uvec4 max (expression uvec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uint arg1)\n"
   "       (declare (in) uint arg2))\n"
   "     ((return (expression uvec2 max (expression uvec2 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uint arg1)\n"
   "       (declare (in) uint arg2))\n"
   "     ((return (expression uvec3 max (expression uvec3 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uint arg1)\n"
   "       (declare (in) uint arg2))\n"
   "     ((return (expression uvec4 max (expression uvec4 min (var_ref arg0) (var_ref arg2)) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_cos[] =
   "((function cos\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float angle))\n"
   "     ((return (expression float cos (var_ref angle)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 angle))\n"
   "     ((return (expression vec2 cos (var_ref angle)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 angle))\n"
   "     ((return (expression vec3 cos (var_ref angle)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 angle))\n"
   "     ((return (expression vec4 cos (var_ref angle)))))\n"
   "))\n"
   ""
;
static const char builtin_cosh[] =
   "((function cosh\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float * (constant float (0.5))\n"
   "                (expression float +\n"
   "		  (expression float exp (var_ref x))\n"
   "		  (expression float exp (expression float neg (var_ref x))))))))\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 * (constant vec2 (0.5))\n"
   "                (expression vec2 +\n"
   "		  (expression vec2 exp (var_ref x))\n"
   "		  (expression vec2 exp (expression vec2 neg (var_ref x))))))))\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 * (constant vec3 (0.5))\n"
   "                (expression vec3 +\n"
   "		  (expression vec3 exp (var_ref x))\n"
   "		  (expression vec3 exp (expression vec3 neg (var_ref x))))))))\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 * (constant vec4 (0.5))\n"
   "                (expression vec4 +\n"
   "		  (expression vec4 exp (var_ref x))\n"
   "		  (expression vec4 exp (expression vec4 neg (var_ref x))))))))\n"
   "))\n"
   ""
;
static const char builtin_cross[] =
   "((function cross\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 a)\n"
   "       (declare (in) vec3 b))\n"
   "     ((return (expression vec3 -\n"
   "        (expression vec3 * (swiz yzx (var_ref a)) (swiz zxy (var_ref b)))\n"
   "        (expression vec3 * (swiz zxy (var_ref a)) (swiz yzx (var_ref b)))))))\n"
   "))\n"
   ""
;
static const char builtin_dFdx[] =
   "((function dFdx\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float p))\n"
   "     ((return (expression float dFdx (var_ref p)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 p))\n"
   "     ((return (expression vec2 dFdx (var_ref p)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 p))\n"
   "     ((return (expression vec3 dFdx (var_ref p)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 p))\n"
   "     ((return (expression vec4 dFdx (var_ref p)))))\n"
   "))\n"
   ""
;
static const char builtin_dFdy[] =
   "((function dFdy\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float p))\n"
   "     ((return (expression float dFdy (var_ref p)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 p))\n"
   "     ((return (expression vec2 dFdy (var_ref p)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 p))\n"
   "     ((return (expression vec3 dFdy (var_ref p)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 p))\n"
   "     ((return (expression vec4 dFdy (var_ref p)))))\n"
   "))\n"
   ""
;
static const char builtin_degrees[] =
   "((function degrees\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float * (var_ref arg0) (constant float (57.295780))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 * (var_ref arg0) (constant float (57.295780))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 * (var_ref arg0) (constant float (57.295780))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 * (var_ref arg0) (constant float (57.295780))))))\n"
   "))\n"
   ""
;
static const char builtin_distance[] =
   "((function distance\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float p0)\n"
   "       (declare (in) float p1))\n"
   "     ((return (expression float abs (expression float - (var_ref p0) (var_ref p1))))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec2 p0)\n"
   "       (declare (in) vec2 p1))\n"
   "     ((declare () vec2 p)\n"
   "      (assign (constant bool (1)) (xy) (var_ref p) (expression vec2 - (var_ref p0) (var_ref p1)))\n"
   "      (return (expression float sqrt (expression float dot (var_ref p) (var_ref p))))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec3 p0)\n"
   "       (declare (in) vec3 p1))\n"
   "     ((declare () vec3 p)\n"
   "      (assign (constant bool (1)) (xyz) (var_ref p) (expression vec3 - (var_ref p0) (var_ref p1)))\n"
   "      (return (expression float sqrt (expression float dot (var_ref p) (var_ref p))))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec4 p0)\n"
   "       (declare (in) vec4 p1))\n"
   "     ((declare () vec4 p)\n"
   "      (assign (constant bool (1)) (xyzw) (var_ref p) (expression vec4 - (var_ref p0) (var_ref p1)))\n"
   "      (return (expression float sqrt (expression float dot (var_ref p) (var_ref p))))))\n"
   "))\n"
   ""
;
static const char builtin_dot[] =
   "((function dot\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression float * (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression float dot (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression float dot (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression float dot (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_equal[] =
   "((function equal\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) bvec2 arg0)\n"
   "       (declare (in) bvec2 arg1))\n"
   "     ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) bvec3 arg0)\n"
   "       (declare (in) bvec3 arg1))\n"
   "     ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) bvec4 arg0)\n"
   "       (declare (in) bvec4 arg1))\n"
   "     ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression bvec2 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression bvec3 == (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression bvec4 == (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_exp[] =
   "((function exp\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float exp (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 exp (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 exp (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 exp (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_exp2[] =
   "((function exp2\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float exp2 (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 exp2 (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 exp2 (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 exp2 (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_faceforward[] =
   "((function faceforward\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float N)\n"
   "       (declare (in) float I)\n"
   "       (declare (in) float Nref))\n"
   "     ((if (expression bool < (expression float * (var_ref Nref) (var_ref I)) (constant float (0)))\n"
   "          ((return (var_ref N)))\n"
   "	  ((return (expression float neg (var_ref N)))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 N)\n"
   "       (declare (in) vec2 I)\n"
   "       (declare (in) vec2 Nref))\n"
   "     ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))\n"
   "          ((return (var_ref N)))\n"
   "	  ((return (expression vec2 neg (var_ref N)))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 N)\n"
   "       (declare (in) vec3 I)\n"
   "       (declare (in) vec3 Nref))\n"
   "     ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))\n"
   "          ((return (var_ref N)))\n"
   "	  ((return (expression vec3 neg (var_ref N)))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 N)\n"
   "       (declare (in) vec4 I)\n"
   "       (declare (in) vec4 Nref))\n"
   "     ((if (expression bool < (expression float dot (var_ref Nref) (var_ref I)) (constant float (0)))\n"
   "          ((return (var_ref N)))\n"
   "	  ((return (expression vec4 neg (var_ref N)))))))\n"
   "))\n"
   ""
;
static const char builtin_floor[] =
   "((function floor\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float floor (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 floor (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 floor (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 floor (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_fract[] =
   "((function fract\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float fract (var_ref x)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 fract (var_ref x)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 fract (var_ref x)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 fract (var_ref x)))))\n"
   "))\n"
   "\n"
   ""
;
static const char builtin_ftransform[] =
   "((declare (uniform) mat4 gl_ModelViewProjectionMatrix)\n"
   " (declare (in) vec4 gl_Vertex)\n"
   " (function ftransform\n"
   "   (signature vec4\n"
   "     (parameters)\n"
   "    ((return (expression vec4 *\n"
   "	      (var_ref gl_ModelViewProjectionMatrix)\n"
   "	      (var_ref gl_Vertex)))))\n"
   "))\n"
   ""
;
static const char builtin_fwidth[] =
   "((function fwidth\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float p))\n"
   "     ((return (expression float +\n"
   "                (expression float abs (expression float dFdx (var_ref p)))\n"
   "                (expression float abs (expression float dFdy (var_ref p)))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 p))\n"
   "     ((return (expression vec2 +\n"
   "                (expression vec2 abs (expression vec2 dFdx (var_ref p)))\n"
   "                (expression vec2 abs (expression vec2 dFdy (var_ref p)))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 p))\n"
   "     ((return (expression vec3 +\n"
   "                (expression vec3 abs (expression vec3 dFdx (var_ref p)))\n"
   "                (expression vec3 abs (expression vec3 dFdy (var_ref p)))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 p))\n"
   "     ((return (expression vec4 +\n"
   "                (expression vec4 abs (expression vec4 dFdx (var_ref p)))\n"
   "                (expression vec4 abs (expression vec4 dFdy (var_ref p)))))))\n"
   "))\n"
   ""
;
static const char builtin_greaterThan[] =
   "((function greaterThan\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression bvec2 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression bvec3 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression bvec4 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression bvec2 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression bvec3 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression bvec4 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression bvec2 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression bvec3 > (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression bvec4 > (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_greaterThanEqual[] =
   "((function greaterThanEqual\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression bvec2 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression bvec3 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression bvec4 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression bvec2 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression bvec3 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression bvec4 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression bvec2 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression bvec3 >= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression bvec4 >= (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_inversesqrt[] =
   "((function inversesqrt\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float rsq (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 rsq (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 rsq (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 rsq (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_length[] =
   "((function length\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float abs (var_ref arg0)))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0))))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0))))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression float sqrt (expression float dot (var_ref arg0) (var_ref arg0))))))\n"
   "))\n"
   ""
;
static const char builtin_lessThan[] =
   "((function lessThan\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression bvec2 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression bvec3 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression bvec4 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression bvec2 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression bvec3 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression bvec4 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression bvec2 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression bvec3 < (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression bvec4 < (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_lessThanEqual[] =
   "((function lessThanEqual\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression bvec2 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression bvec3 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression bvec4 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression bvec2 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression bvec3 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression bvec4 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression bvec2 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression bvec3 <= (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression bvec4 <= (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_log[] =
   "((function log\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float log (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 log (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 log (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 log (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_log2[] =
   "((function log2\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float log2 (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 log2 (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 log2 (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 log2 (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_matrixCompMult[] =
   "((function matrixCompMult\n"
   "   (signature mat2\n"
   "     (parameters\n"
   "       (declare (in) mat2 x)\n"
   "       (declare (in) mat2 y))\n"
   "     ((declare () mat2 z)\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (0)))  (expression vec2 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (1)))  (expression vec2 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat3\n"
   "     (parameters\n"
   "       (declare (in) mat3 x)\n"
   "       (declare (in) mat3 y))\n"
   "     ((declare () mat3 z)\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (0)))  (expression vec3 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (1)))  (expression vec3 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (2)))  (expression vec3 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat4\n"
   "     (parameters\n"
   "       (declare (in) mat4 x)\n"
   "       (declare (in) mat4 y))\n"
   "     ((declare () mat4 z)\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (0)))  (expression vec4 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (1)))  (expression vec4 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (2)))  (expression vec4 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (3)))  (expression vec4 * (array_ref (var_ref x) (constant int (3))) (array_ref (var_ref y) (constant int (3)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat2x3\n"
   "     (parameters\n"
   "       (declare (in) mat2x3 x)\n"
   "       (declare (in) mat2x3 y))\n"
   "     ((declare () mat2x3 z)\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (0)))  (expression vec3 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (1)))  (expression vec3 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat3x2\n"
   "     (parameters\n"
   "       (declare (in) mat3x2 x)\n"
   "       (declare (in) mat3x2 y))\n"
   "     ((declare () mat3x2 z)\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (0)))  (expression vec2 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (1)))  (expression vec2 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (2)))  (expression vec2 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat2x4\n"
   "     (parameters\n"
   "       (declare (in) mat2x4 x)\n"
   "       (declare (in) mat2x4 y))\n"
   "     ((declare () mat2x4 z)\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (0)))  (expression vec4 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (1)))  (expression vec4 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat4x2\n"
   "     (parameters\n"
   "       (declare (in) mat4x2 x)\n"
   "       (declare (in) mat4x2 y))\n"
   "     ((declare () mat4x2 z)\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (0)))  (expression vec2 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (1)))  (expression vec2 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (2)))  (expression vec2 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref z) (constant int (3)))  (expression vec2 * (array_ref (var_ref x) (constant int (3))) (array_ref (var_ref y) (constant int (3)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat3x4\n"
   "     (parameters\n"
   "       (declare (in) mat3x4 x)\n"
   "       (declare (in) mat3x4 y))\n"
   "     ((declare () mat3x4 z)\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (0)))  (expression vec4 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (1)))  (expression vec4 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref z) (constant int (2)))  (expression vec4 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
   "(return (var_ref z))))\n"
   "\n"
   "   (signature mat4x3\n"
   "     (parameters\n"
   "       (declare (in) mat4x3 x)\n"
   "       (declare (in) mat4x3 y))\n"
   "     ((declare () mat4x3 z)\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (0)))  (expression vec3 * (array_ref (var_ref x) (constant int (0))) (array_ref (var_ref y) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (1)))  (expression vec3 * (array_ref (var_ref x) (constant int (1))) (array_ref (var_ref y) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (2)))  (expression vec3 * (array_ref (var_ref x) (constant int (2))) (array_ref (var_ref y) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref z) (constant int (3)))  (expression vec3 * (array_ref (var_ref x) (constant int (3))) (array_ref (var_ref y) (constant int (3)))))\n"
   "(return (var_ref z))))\n"
   "))\n"
   ""
;
static const char builtin_max[] =
   "((function max\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression float max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression vec2 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression vec3 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression vec4 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec2 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec3 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec4 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature int\n"
   "     (parameters\n"
   "       (declare (in) int arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression int max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression ivec2 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression ivec3 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression ivec4 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2  arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression ivec2 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3  arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression ivec3 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4  arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression ivec4 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uint\n"
   "     (parameters\n"
   "       (declare (in) uint arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uint max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression uvec2 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression uvec3 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression uvec4 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2  arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uvec2 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3  arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uvec3 max (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4  arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uvec4 max (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_min[] =
   "((function min\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression float min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression vec2 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression vec3 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression vec4 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec2 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec3 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec4 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature int\n"
   "     (parameters\n"
   "       (declare (in) int arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression int min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression ivec2 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression ivec3 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression ivec4 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2  arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression ivec2 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3  arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression ivec3 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4  arg0)\n"
   "       (declare (in) int arg1))\n"
   "     ((return (expression ivec4 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uint\n"
   "     (parameters\n"
   "       (declare (in) uint arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uint min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression uvec2 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression uvec3 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression uvec4 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2  arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uvec2 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3  arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uvec3 min (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4  arg0)\n"
   "       (declare (in) uint arg1))\n"
   "     ((return (expression uvec4 min (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_mix[] =
   "((function mix\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0)\n"
   "       (declare (in) float arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression float + (expression float * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression float * (var_ref arg1) (var_ref arg2))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1)\n"
   "       (declare (in) vec2 arg2))\n"
   "     ((return (expression vec2 + (expression vec2 * (var_ref arg0) (expression vec2 - (constant float (1.000000)) (var_ref arg2))) (expression vec2 * (var_ref arg1) (var_ref arg2))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1)\n"
   "       (declare (in) vec3 arg2))\n"
   "     ((return (expression vec3 + (expression vec3 * (var_ref arg0) (expression vec3 - (constant float (1.000000)) (var_ref arg2))) (expression vec3 * (var_ref arg1) (var_ref arg2))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1)\n"
   "       (declare (in) vec4 arg2))\n"
   "     ((return (expression vec4 + (expression vec4 * (var_ref arg0) (expression vec4 - (constant float (1.000000)) (var_ref arg2))) (expression vec4 * (var_ref arg1) (var_ref arg2))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression vec2 + (expression vec2 * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression vec2 * (var_ref arg1) (var_ref arg2))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression vec3 + (expression vec3 * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression vec3 * (var_ref arg1) (var_ref arg2))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1)\n"
   "       (declare (in) float arg2))\n"
   "     ((return (expression vec4 + (expression vec4 * (var_ref arg0) (expression float - (constant float (1.000000)) (var_ref arg2))) (expression vec4 * (var_ref arg1) (var_ref arg2))))))\n"
   "\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float v1)\n"
   "       (declare (in) float v2)\n"
   "       (declare (in) bool  a))\n"
   "     ((assign (var_ref a) (var_ref v1) (var_ref v2))\n"
   "      (return (var_ref v1))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 v1)\n"
   "       (declare (in) vec2 v2)\n"
   "       (declare (in) bvec2 a))\n"
   "     ((assign (swiz x (var_ref a)) (x) (var_ref v1) (swiz x (var_ref v2)))\n"
   "      (assign (swiz y (var_ref a)) (y) (var_ref v1) (swiz y (var_ref v2)))\n"
   "      (return (var_ref v1))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 v1)\n"
   "       (declare (in) vec3 v2)\n"
   "       (declare (in) bvec3 a))\n"
   "     ((assign (swiz x (var_ref a)) (x) (var_ref v1) (swiz x (var_ref v2)))\n"
   "      (assign (swiz y (var_ref a)) (y) (var_ref v1) (swiz y (var_ref v2)))\n"
   "      (assign (swiz z (var_ref a)) (z) (var_ref v1) (swiz z (var_ref v2)))\n"
   "      (return (var_ref v1))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 v1)\n"
   "       (declare (in) vec4 v2)\n"
   "       (declare (in) bvec4 a))\n"
   "     ((assign (swiz x (var_ref a)) (x) (var_ref v1) (swiz x (var_ref v2)))\n"
   "      (assign (swiz y (var_ref a)) (y) (var_ref v1) (swiz y (var_ref v2)))\n"
   "      (assign (swiz z (var_ref a)) (z) (var_ref v1) (swiz z (var_ref v2)))\n"
   "      (assign (swiz w (var_ref a)) (w) (var_ref v1) (swiz w (var_ref v2)))\n"
   "      (return (var_ref v1))))\n"
   "))\n"
   ""
;
static const char builtin_mod[] =
   "((function mod\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression float % (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression vec2 % (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression vec3 % (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression vec4 % (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec2 % (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec3 % (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4  arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression vec4 % (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_modf[] =
   "((function modf\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in)  float x)\n"
   "       (declare (out) float i))\n"
   "     ((declare () float t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t)\n"
   "                                      (expression float trunc (var_ref x)))\n"
   "      (assign (constant bool (1)) (x) (var_ref i) (var_ref t))\n"
   "      (return (expression float - (var_ref x) (var_ref t)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in)  vec2 x)\n"
   "       (declare (out) vec2 i))\n"
   "     ((declare () vec2 t)\n"
   "      (assign (constant bool (1)) (xy) (var_ref t)\n"
   "                                       (expression vec2 trunc (var_ref x)))\n"
   "      (assign (constant bool (1)) (xy) (var_ref i) (var_ref t))\n"
   "      (return (expression vec2 - (var_ref x) (var_ref t)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in)  vec3 x)\n"
   "       (declare (out) vec3 i))\n"
   "     ((declare () vec3 t)\n"
   "      (assign (constant bool (1)) (xyz) (var_ref t)\n"
   "                                        (expression vec3 trunc (var_ref x)))\n"
   "      (assign (constant bool (1)) (xyz) (var_ref i) (var_ref t))\n"
   "      (return (expression vec3 - (var_ref x) (var_ref t)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in)  vec4 x)\n"
   "       (declare (out) vec4 i))\n"
   "     ((declare () vec4 t)\n"
   "      (assign (constant bool (1)) (xyzw) (var_ref t)\n"
   "                                         (expression vec4 trunc (var_ref x)))\n"
   "      (assign (constant bool (1)) (xyzw) (var_ref i) (var_ref t))\n"
   "      (return (expression vec4 - (var_ref x) (var_ref t)))))\n"
   "))\n"
   ""
;
static const char builtin_noise1[] =
   "((function noise1\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float noise (var_ref x)))))\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression float noise (var_ref x)))))\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression float noise (var_ref x)))))\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression float noise (var_ref x)))))\n"
   "))\n"
   ""
;
static const char builtin_noise2[] =
   "((function noise2\n"
   "  (signature vec2\n"
   "    (parameters (declare (in) vec4 p))\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () vec2 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "\n"
   "  (signature vec2\n"
   "    (parameters (declare (in) vec3 p))\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () vec2 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in ) vec2 p)\n"
   "    )\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () vec2 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in ) float p)\n"
   "    )\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () vec2 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression float + (var_ref p) (constant float (601.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "))\n"
   ""
;
static const char builtin_noise3[] =
   "((function noise3\n"
   "  (signature vec3\n"
   "    (parameters (declare (in) vec4 p))\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () float c)\n"
   "      (declare () vec3 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec4 + (var_ref p) (constant vec4 (1559.0 113.0 1861.0 797.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "\n"
   "  (signature vec3\n"
   "    (parameters (declare (in) vec3 p))\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () float c)\n"
   "      (declare () vec3 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec3 + (var_ref p) (constant vec3 (1559.0 113.0 1861.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "\n"
   "  (signature vec3\n"
   "    (parameters (declare (in) vec2 p))\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () float c)\n"
   "      (declare () vec3 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression vec2 + (var_ref p) (constant vec2 (1559.0 113.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "\n"
   "  (signature vec3\n"
   "    (parameters (declare (in) float p))\n"
   "    (\n"
   "      (declare () float a)\n"
   "      (declare () float b)\n"
   "      (declare () float c)\n"
   "      (declare () vec3 t)\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref a) (expression float noise (var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref b) (expression float noise (expression float + (var_ref p) (constant float (601.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref c) (expression float noise (expression float + (var_ref p) (constant float (1559.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (var_ref a))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (var_ref b))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (var_ref c))\n"
   "      (return (var_ref t))\n"
   "    ))\n"
   "))\n"
   ""
;
static const char builtin_noise4[] =
   "((function noise4\n"
   "  (signature vec4\n"
   "    (parameters (declare (in) vec4 p))\n"
   "    (\n"
   "      (declare () float _x)\n"
   "      (declare () float _y)\n"
   "      (declare () float _z)\n"
   "      (declare () float _w)\n"
   "      (declare () vec4 _r)\n"
   "\n"
   "      (declare () vec4 _p)\n"
   "      (assign (constant bool (1)) (xyzw) (var_ref _p) (expression vec4 + (var_ref p) (constant vec4 (1559.0 113.0 1861.0 797.0))) )\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec4 + (var_ref p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec4 + (var_ref _p) (constant vec4 (601.0 313.0 29.0 277.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
   "      (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
   "      (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
   "      (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
   "      (return (var_ref _r))\n"
   "    ))\n"
   "\n"
   "  (signature vec4\n"
   "    (parameters (declare (in) vec3 p))\n"
   "    (\n"
   "      (declare () float _x)\n"
   "      (declare () float _y)\n"
   "      (declare () float _z)\n"
   "      (declare () float _w)\n"
   "      (declare () vec4 _r)\n"
   "\n"
   "      (declare () vec3 _p)\n"
   "      (assign (constant bool (1)) (xyz) (var_ref _p) (expression vec3 + (var_ref p) (constant vec3 (1559.0 113.0 1861.0))) )\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec3 + (var_ref p) (constant vec3 (601.0 313.0 29.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec3 + (var_ref _p) (constant vec3 (601.0 313.0 29.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
   "      (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
   "      (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
   "      (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
   "      (return (var_ref _r))\n"
   "    ))\n"
   "\n"
   "  (signature vec4\n"
   "    (parameters (declare (in) vec2 p))\n"
   "    (\n"
   "      (declare () float _x)\n"
   "      (declare () float _y)\n"
   "      (declare () float _z)\n"
   "      (declare () float _w)\n"
   "      (declare () vec4 _r)\n"
   "\n"
   "      (declare () vec2 _p)\n"
   "      (assign (constant bool (1)) (xy) (var_ref _p) (expression vec2 + (var_ref p) (constant vec2 (1559.0 113.0))) )\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression vec2 + (var_ref p) (constant vec2 (601.0 313.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression vec2 + (var_ref _p) (constant vec2 (601.0 313.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
   "      (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
   "      (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
   "      (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
   "      (return (var_ref _r))\n"
   "    ))\n"
   "\n"
   "  (signature vec4\n"
   "    (parameters (declare (in) float p))\n"
   "    (\n"
   "      (declare () float _x)\n"
   "      (declare () float _y)\n"
   "      (declare () float _z)\n"
   "      (declare () float _w)\n"
   "      (declare () vec4 _r)\n"
   "\n"
   "      (declare () float _p)\n"
   "      (assign (constant bool (1)) (x) (var_ref _p) (expression float + (var_ref p) (constant float (1559.0))) )\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _x) (expression float noise(var_ref p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _y) (expression float noise(expression float + (var_ref p) (constant float (601.0 313.0 29.0 277.0)))))\n"
   "      (assign (constant bool (1)) (x) (var_ref _z) (expression float noise(var_ref _p)))\n"
   "      (assign (constant bool (1)) (x) (var_ref _w) (expression float noise(expression float + (var_ref _p) (constant float (601.0 313.0 29.0 277.0)))))\n"
   "\n"
   "      (assign (constant bool (1)) (x) (var_ref _r) (var_ref _x))\n"
   "      (assign (constant bool (1)) (y) (var_ref _r) (var_ref _y))\n"
   "      (assign (constant bool (1)) (z) (var_ref _r) (var_ref _z))\n"
   "      (assign (constant bool (1)) (w) (var_ref _r) (var_ref _w))\n"
   "      (return (var_ref _r))\n"
   "    ))\n"
   "))\n"
   ""
;
static const char builtin_normalize[] =
   "((function normalize\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float sign (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 * (var_ref arg0) (expression float rsq (expression float dot (var_ref arg0) (var_ref arg0)))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 * (var_ref arg0) (expression float rsq (expression float dot (var_ref arg0) (var_ref arg0)))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 * (var_ref arg0) (expression float rsq (expression float dot (var_ref arg0) (var_ref arg0)))))))\n"
   "))\n"
   ""
;
static const char builtin_not[] =
   "((function not\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) bvec2 arg0))\n"
   "     ((return (expression bvec2 ! (var_ref arg0)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) bvec3 arg0))\n"
   "     ((return (expression bvec3 ! (var_ref arg0)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) bvec4 arg0))\n"
   "     ((return (expression bvec4 ! (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_notEqual[] =
   "((function notEqual\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) bvec2 arg0)\n"
   "       (declare (in) bvec2 arg1))\n"
   "     ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) bvec3 arg0)\n"
   "       (declare (in) bvec3 arg1))\n"
   "     ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) bvec4 arg0)\n"
   "       (declare (in) bvec4 arg1))\n"
   "     ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 arg0)\n"
   "       (declare (in) ivec2 arg1))\n"
   "     ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 arg0)\n"
   "       (declare (in) ivec3 arg1))\n"
   "     ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 arg0)\n"
   "       (declare (in) ivec4 arg1))\n"
   "     ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec2\n"
   "     (parameters\n"
   "       (declare (in) uvec2 arg0)\n"
   "       (declare (in) uvec2 arg1))\n"
   "     ((return (expression bvec2 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec3\n"
   "     (parameters\n"
   "       (declare (in) uvec3 arg0)\n"
   "       (declare (in) uvec3 arg1))\n"
   "     ((return (expression bvec3 != (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature bvec4\n"
   "     (parameters\n"
   "       (declare (in) uvec4 arg0)\n"
   "       (declare (in) uvec4 arg1))\n"
   "     ((return (expression bvec4 != (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_outerProduct[] =
   "((function outerProduct\n"
   "   (signature mat2\n"
   "     (parameters\n"
   "       (declare (in) vec2 u)\n"
   "       (declare (in) vec2 v))\n"
   "     ((declare () mat2 m)\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (0))) (expression vec2 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (1))) (expression vec2 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "\n"
   "   (signature mat2x3\n"
   "     (parameters\n"
   "       (declare (in) vec3 u)\n"
   "       (declare (in) vec2 v))\n"
   "     ((declare () mat2x3 m)\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (0))) (expression vec3 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (1))) (expression vec3 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "\n"
   "   (signature mat2x4\n"
   "     (parameters\n"
   "       (declare (in) vec4 u)\n"
   "       (declare (in) vec2 v))\n"
   "     ((declare () mat2x4 m)\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (0))) (expression vec4 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (1))) (expression vec4 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "\n"
   "   (signature mat3x2\n"
   "     (parameters\n"
   "       (declare (in) vec2 u)\n"
   "       (declare (in) vec3 v))\n"
   "     ((declare () mat3x2 m)\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (0))) (expression vec2 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (1))) (expression vec2 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (2))) (expression vec2 * (var_ref u) (swiz z (var_ref v))))\n"
   "      (return (var_ref m))\n"
   " ))\n"
   "\n"
   "   (signature mat3\n"
   "     (parameters\n"
   "       (declare (in) vec3 u)\n"
   "       (declare (in) vec3 v))\n"
   "     ((declare () mat3 m)\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (0))) (expression vec3 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (1))) (expression vec3 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (2))) (expression vec3 * (var_ref u) (swiz z (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "\n"
   "   (signature mat3x4\n"
   "     (parameters\n"
   "       (declare (in) vec4 u)\n"
   "       (declare (in) vec3 v))\n"
   "     ((declare () mat3x4 m)\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (0))) (expression vec4 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (1))) (expression vec4 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (2))) (expression vec4 * (var_ref u) (swiz z (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "\n"
   "   (signature mat4x2\n"
   "     (parameters\n"
   "       (declare (in) vec2 u)\n"
   "       (declare (in) vec4 v))\n"
   "     ((declare () mat4x2 m)\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (0))) (expression vec2 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (1))) (expression vec2 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (2))) (expression vec2 * (var_ref u) (swiz z (var_ref v))))\n"
   "      (assign (constant bool (1)) (xy) (array_ref (var_ref m) (constant int (3))) (expression vec2 * (var_ref u) (swiz w (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "\n"
   "   (signature mat4x3\n"
   "     (parameters\n"
   "       (declare (in) vec3 u)\n"
   "       (declare (in) vec4 v))\n"
   "     ((declare () mat4x3 m)\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (0))) (expression vec3 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (1))) (expression vec3 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (2))) (expression vec3 * (var_ref u) (swiz z (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyz) (array_ref (var_ref m) (constant int (3))) (expression vec3 * (var_ref u) (swiz w (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "\n"
   "   (signature mat4\n"
   "     (parameters\n"
   "       (declare (in) vec4 u)\n"
   "       (declare (in) vec4 v))\n"
   "     ((declare () mat4 m)\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (0))) (expression vec4 * (var_ref u) (swiz x (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (1))) (expression vec4 * (var_ref u) (swiz y (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (2))) (expression vec4 * (var_ref u) (swiz z (var_ref v))))\n"
   "      (assign (constant bool (1)) (xyzw) (array_ref (var_ref m) (constant int (3))) (expression vec4 * (var_ref u) (swiz w (var_ref v))))\n"
   "      (return (var_ref m))))\n"
   "))\n"
   ""
;
static const char builtin_pow[] =
   "((function pow\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0)\n"
   "       (declare (in) float arg1))\n"
   "     ((return (expression float pow (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0)\n"
   "       (declare (in) vec2 arg1))\n"
   "     ((return (expression vec2 pow (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0)\n"
   "       (declare (in) vec3 arg1))\n"
   "     ((return (expression vec3 pow (var_ref arg0) (var_ref arg1)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0)\n"
   "       (declare (in) vec4 arg1))\n"
   "     ((return (expression vec4 pow (var_ref arg0) (var_ref arg1)))))\n"
   "))\n"
   ""
;
static const char builtin_radians[] =
   "((function radians\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float * (var_ref arg0) (constant float (0.017453))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 * (var_ref arg0) (constant float (0.017453))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 * (var_ref arg0) (constant float (0.017453))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 * (var_ref arg0) (constant float (0.017453))))))\n"
   "))\n"
   ""
;
static const char builtin_reflect[] =
   "((function reflect\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float i)\n"
   "       (declare (in) float n))\n"
   "     ((return (expression float -\n"
   "	       (var_ref i)\n"
   "	       (expression float *\n"
   "		(constant float (2.0))\n"
   "		(expression float *\n"
   "		 (expression float *\n"
   "		  (var_ref n)\n"
   "		  (var_ref i))\n"
   "		 (var_ref n)))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 i)\n"
   "       (declare (in) vec2 n))\n"
   "     ((return (expression vec2 -\n"
   "	       (var_ref i)\n"
   "	       (expression vec2 *\n"
   "		(constant float (2.0))\n"
   "		(expression vec2 *\n"
   "		 (expression float dot\n"
   "		  (var_ref n)\n"
   "		  (var_ref i))\n"
   "		 (var_ref n)))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 i)\n"
   "       (declare (in) vec3 n))\n"
   "     ((return (expression vec3 -\n"
   "	       (var_ref i)\n"
   "	       (expression vec3 *\n"
   "		(constant float (2.0))\n"
   "		(expression vec3 *\n"
   "		 (expression float dot\n"
   "		  (var_ref n)\n"
   "		  (var_ref i))\n"
   "		 (var_ref n)))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 i)\n"
   "       (declare (in) vec4 n))\n"
   "     ((return (expression vec4 -\n"
   "	       (var_ref i)\n"
   "	       (expression vec4 *\n"
   "		(constant float (2.0))\n"
   "		(expression vec4 *\n"
   "		 (expression float dot\n"
   "		  (var_ref n)\n"
   "		  (var_ref i))\n"
   "		 (var_ref n)))))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_refract[] =
   "((function refract\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float i)\n"
   "       (declare (in) float n)\n"
   "       (declare (in) float eta))\n"
   "     ((declare () float k)\n"
   "      (assign (constant bool (1)) (x) (var_ref k)\n"
   "              (expression float - (constant float (1.0))\n"
   "	        (expression float * (var_ref eta)\n"
   "	          (expression float * (var_ref eta)\n"
   "		    (expression float - (constant float (1.0))\n"
   "		      (expression float * \n"
   "		        (expression float * (var_ref n) (var_ref i))\n"
   "		        (expression float * (var_ref n) (var_ref i))))))))\n"
   "      (if (expression bool < (var_ref k) (constant float (0.0)))\n"
   "          ((return (constant float (0.0))))\n"
   "	  ((return (expression float -\n"
   "	             (expression float * (var_ref eta) (var_ref i))\n"
   "		     (expression float *\n"
   "		       (expression float +\n"
   "		         (expression float * (var_ref eta)\n"
   "			   (expression float * (var_ref n) (var_ref i)))\n"
   "		         (expression float sqrt (var_ref k)))\n"
   "		       (var_ref n))))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 i)\n"
   "       (declare (in) vec2 n)\n"
   "       (declare (in) float eta))\n"
   "     ((declare () float k)\n"
   "      (assign (constant bool (1)) (x) (var_ref k)\n"
   "              (expression float - (constant float (1.0))\n"
   "	        (expression float * (var_ref eta)\n"
   "	          (expression float * (var_ref eta)\n"
   "		    (expression float - (constant float (1.0))\n"
   "		      (expression float * \n"
   "		        (expression float dot (var_ref n) (var_ref i))\n"
   "		        (expression float dot (var_ref n) (var_ref i))))))))\n"
   "      (if (expression bool < (var_ref k) (constant float (0.0)))\n"
   "          ((return (constant vec2 (0.0 0.0))))\n"
   "	  ((return (expression vec2 -\n"
   "	             (expression vec2 * (var_ref eta) (var_ref i))\n"
   "		     (expression vec2 *\n"
   "		       (expression float +\n"
   "		         (expression float * (var_ref eta)\n"
   "			   (expression float dot (var_ref n) (var_ref i)))\n"
   "		         (expression float sqrt (var_ref k)))\n"
   "		       (var_ref n))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 i)\n"
   "       (declare (in) vec3 n)\n"
   "       (declare (in) float eta))\n"
   "     ((declare () float k)\n"
   "      (assign (constant bool (1)) (x) (var_ref k)\n"
   "              (expression float - (constant float (1.0))\n"
   "	        (expression float * (var_ref eta)\n"
   "	          (expression float * (var_ref eta)\n"
   "		    (expression float - (constant float (1.0))\n"
   "		      (expression float * \n"
   "		        (expression float dot (var_ref n) (var_ref i))\n"
   "		        (expression float dot (var_ref n) (var_ref i))))))))\n"
   "      (if (expression bool < (var_ref k) (constant float (0.0)))\n"
   "          ((return (constant vec3 (0.0 0.0 0.0))))\n"
   "	  ((return (expression vec3 -\n"
   "	             (expression vec3 * (var_ref eta) (var_ref i))\n"
   "		     (expression vec3 *\n"
   "		       (expression float +\n"
   "		         (expression float * (var_ref eta)\n"
   "			   (expression float dot (var_ref n) (var_ref i)))\n"
   "		         (expression float sqrt (var_ref k)))\n"
   "		       (var_ref n))))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 i)\n"
   "       (declare (in) vec4 n)\n"
   "       (declare (in) float eta))\n"
   "     ((declare () float k)\n"
   "      (assign (constant bool (1)) (x) (var_ref k)\n"
   "              (expression float - (constant float (1.0))\n"
   "	        (expression float * (var_ref eta)\n"
   "	          (expression float * (var_ref eta)\n"
   "		    (expression float - (constant float (1.0))\n"
   "		      (expression float * \n"
   "		        (expression float dot (var_ref n) (var_ref i))\n"
   "		        (expression float dot (var_ref n) (var_ref i))))))))\n"
   "      (if (expression bool < (var_ref k) (constant float (0.0)))\n"
   "          ((return (constant vec4 (0.0 0.0 0.0 0.0))))\n"
   "	  ((return (expression vec4 -\n"
   "	             (expression vec4 * (var_ref eta) (var_ref i))\n"
   "		     (expression vec4 *\n"
   "		       (expression float +\n"
   "		         (expression float * (var_ref eta)\n"
   "			   (expression float dot (var_ref n) (var_ref i)))\n"
   "		         (expression float sqrt (var_ref k)))\n"
   "		       (var_ref n))))))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_round[] =
   "((function round\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float round_even (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 round_even (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 round_even (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 round_even (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_roundEven[] =
   "((function roundEven\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float round_even (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 round_even (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 round_even (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 round_even (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_shadow1D[] =
   "((function shadow1D\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DShadow sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DShadow sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow1DArray[] =
   "((function shadow1DArray\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArrayShadow sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArrayShadow sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow1DArrayLod[] =
   "((function shadow1DArrayLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArrayShadow sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow1DLod[] =
   "((function shadow1DLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DShadow sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow1DProj[] =
   "((function shadow1DProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DShadow sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DShadow sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow1DProjLod[] =
   "((function shadow1DProjLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DShadow sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow2D[] =
   "((function shadow2D\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DShadow sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DShadow sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow2DArray[] =
   "((function shadow2DArray\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArrayShadow sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) 1 (swiz w (var_ref P)) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow2DLod[] =
   "((function shadow2DLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DShadow sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow2DProj[] =
   "((function shadow2DProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DShadow sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DShadow sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow2DProjLod[] =
   "((function shadow2DProjLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DShadow sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow2DRect[] =
   "((function shadow2DRect\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DRectShadow sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) 1 (swiz z (var_ref P)) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_shadow2DRectProj[] =
   "((function shadow2DRectProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DRectShadow sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) (swiz z (var_ref P)) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_sign[] =
   "((function sign\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float sign (var_ref x)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 sign (var_ref x)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 sign (var_ref x)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 sign (var_ref x)))))\n"
   "\n"
   "   (signature int\n"
   "     (parameters\n"
   "       (declare (in) int x))\n"
   "     ((return (expression int sign (var_ref x)))))\n"
   "\n"
   "   (signature ivec2\n"
   "     (parameters\n"
   "       (declare (in) ivec2 x))\n"
   "     ((return (expression ivec2 sign (var_ref x)))))\n"
   "\n"
   "   (signature ivec3\n"
   "     (parameters\n"
   "       (declare (in) ivec3 x))\n"
   "     ((return (expression ivec3 sign (var_ref x)))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) ivec4 x))\n"
   "     ((return (expression ivec4 sign (var_ref x)))))\n"
   "))\n"
   "\n"
   ""
;
static const char builtin_sin[] =
   "((function sin\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float angle))\n"
   "     ((return (expression float sin (var_ref angle)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 angle))\n"
   "     ((return (expression vec2 sin (var_ref angle)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 angle))\n"
   "     ((return (expression vec3 sin (var_ref angle)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 angle))\n"
   "     ((return (expression vec4 sin (var_ref angle)))))\n"
   "))\n"
   ""
;
static const char builtin_sinh[] =
   "((function sinh\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float * (constant float (0.5))\n"
   "                (expression float -\n"
   "		  (expression float exp (var_ref x))\n"
   "		  (expression float exp (expression float neg (var_ref x))))))))\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 * (constant vec2 (0.5))\n"
   "                (expression vec2 -\n"
   "		  (expression vec2 exp (var_ref x))\n"
   "		  (expression vec2 exp (expression vec2 neg (var_ref x))))))))\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 * (constant vec3 (0.5))\n"
   "                (expression vec3 -\n"
   "		  (expression vec3 exp (var_ref x))\n"
   "		  (expression vec3 exp (expression vec3 neg (var_ref x))))))))\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 * (constant vec4 (0.5))\n"
   "                (expression vec4 -\n"
   "		  (expression vec4 exp (var_ref x))\n"
   "		  (expression vec4 exp (expression vec4 neg (var_ref x))))))))\n"
   "))\n"
   ""
;
static const char builtin_smoothstep[] =
   "((function smoothstep\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float edge0)\n"
   "       (declare (in) float edge1)\n"
   "       (declare (in) float x))\n"
   "     ((declare () float t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t)\n"
   "              (expression float max\n"
   "	                  (expression float min\n"
   "	                              (expression float / (expression float - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
   "	                              (constant float (1.0)))\n"
   "	                  (constant float (0.0))))\n"
   "      (return (expression float * (var_ref t) (expression float * (var_ref t) (expression float - (constant float (3.0)) (expression float * (constant float (2.0)) (var_ref t))))))))\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) float edge0)\n"
   "       (declare (in) float edge1)\n"
   "       (declare (in) vec2 x))\n"
   "     ((declare () vec2 t)\n"
   "      (assign (constant bool (1)) (xy) (var_ref t)\n"
   "              (expression vec2 max\n"
   "	                  (expression vec2 min\n"
   "	                              (expression vec2 / (expression vec2 - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
   "	                              (constant float (1.0)))\n"
   "	                  (constant float (0.0))))\n"
   "      (return (expression vec2 * (var_ref t) (expression vec2 * (var_ref t) (expression vec2 - (constant float (3.0)) (expression vec2 * (constant float (2.0)) (var_ref t))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) float edge0)\n"
   "       (declare (in) float edge1)\n"
   "       (declare (in) vec3 x))\n"
   "     ((declare () vec3 t)\n"
   "      (assign (constant bool (1)) (xyz) (var_ref t)\n"
   "              (expression vec3 max\n"
   "	                  (expression vec3 min\n"
   "	                              (expression vec3 / (expression vec3 - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
   "	                              (constant float (1.0)))\n"
   "	                  (constant float (0.0))))\n"
   "      (return (expression vec3 * (var_ref t) (expression vec3 * (var_ref t) (expression vec3 - (constant float (3.0)) (expression vec3 * (constant float (2.0)) (var_ref t))))))))\n"
   "\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) float edge0)\n"
   "       (declare (in) float edge1)\n"
   "       (declare (in) vec4 x))\n"
   "     ((declare () vec4 t)\n"
   "      (assign (constant bool (1)) (xyzw) (var_ref t)\n"
   "              (expression vec4 max\n"
   "	                  (expression vec4 min\n"
   "	                              (expression vec4 / (expression vec4 - (var_ref x) (var_ref edge0)) (expression float - (var_ref edge1) (var_ref edge0)))\n"
   "	                              (constant float (1.0)))\n"
   "	                  (constant float (0.0))))\n"
   "      (return (expression vec4 * (var_ref t) (expression vec4 * (var_ref t) (expression vec4 - (constant float (3.0)) (expression vec4 * (constant float (2.0)) (var_ref t))))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 edge0)\n"
   "       (declare (in) vec2 edge1)\n"
   "       (declare (in) vec2 x))\n"
   "     ((declare () vec2 t)\n"
   "      (assign (constant bool (1)) (xy) (var_ref t)\n"
   "              (expression vec2 max\n"
   "                          (expression vec2 min\n"
   "                                      (expression vec2 / (expression vec2 - (var_ref x) (var_ref edge0)) (expression vec2 - (var_ref edge1) (var_ref edge0)))\n"
   "                                      (constant float (1.0)))\n"
   "                          (constant float (0.0))))\n"
   "      (return (expression vec2 * (var_ref t) (expression vec2 * (var_ref t) (expression vec2 - (constant float (3.0)) (expression vec2 * (constant float (2.0)) (var_ref t))))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 edge0)\n"
   "       (declare (in) vec3 edge1)\n"
   "       (declare (in) vec3 x))\n"
   "     ((declare () vec3 t)\n"
   "      (assign (constant bool (1)) (xyz) (var_ref t)\n"
   "              (expression vec3 max\n"
   "                          (expression vec3 min\n"
   "                                      (expression vec3 / (expression vec3 - (var_ref x) (var_ref edge0)) (expression vec3 - (var_ref edge1) (var_ref edge0)))\n"
   "                                      (constant float (1.0)))\n"
   "                          (constant float (0.0))))\n"
   "      (return (expression vec3 * (var_ref t) (expression vec3 * (var_ref t) (expression vec3 - (constant float (3.0)) (expression vec3 * (constant float (2.0)) (var_ref t))))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 edge0)\n"
   "       (declare (in) vec4 edge1)\n"
   "       (declare (in) vec4 x))\n"
   "     ((declare () vec4 t)\n"
   "      (assign (constant bool (1)) (xyzw) (var_ref t)\n"
   "              (expression vec4 max\n"
   "                          (expression vec4 min\n"
   "                                      (expression vec4 / (expression vec4 - (var_ref x) (var_ref edge0)) (expression vec4 - (var_ref edge1) (var_ref edge0)))\n"
   "                                      (constant float (1.0)))\n"
   "                          (constant float (0.0))))\n"
   "      (return (expression vec4 * (var_ref t) (expression vec4 * (var_ref t) (expression vec4 - (constant float (3.0)) (expression vec4 * (constant float (2.0)) (var_ref t))))))))\n"
   "))\n"
   "\n"
   ""
;
static const char builtin_sqrt[] =
   "((function sqrt\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float sqrt (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 sqrt (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 sqrt (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 sqrt (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char builtin_step[] =
   "((function step\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float edge)\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float b2f (expression bool >= (var_ref x) (var_ref edge))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) float edge)\n"
   "       (declare (in) vec2 x))\n"
   "     ((declare () vec2 t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(var_ref edge))))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(var_ref edge))))\n"
   "      (return (var_ref t))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) float edge)\n"
   "       (declare (in) vec3 x))\n"
   "     ((declare () vec3 t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(var_ref edge))))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(var_ref edge))))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(var_ref edge))))\n"
   "      (return (var_ref t))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) float edge)\n"
   "       (declare (in) vec4 x))\n"
   "     ((declare () vec4 t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(var_ref edge))))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(var_ref edge))))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(var_ref edge))))\n"
   "      (assign (constant bool (1)) (w) (var_ref t) (expression float b2f (expression bool >= (swiz w (var_ref x))(var_ref edge))))\n"
   "      (return (var_ref t))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 edge)\n"
   "       (declare (in) vec2 x))\n"
   "     ((declare () vec2 t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(swiz x (var_ref edge)))))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(swiz y (var_ref edge)))))\n"
   "      (return (var_ref t))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 edge)\n"
   "       (declare (in) vec3 x))\n"
   "     ((declare () vec3 t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(swiz x (var_ref edge)))))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(swiz y (var_ref edge)))))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(swiz z (var_ref edge)))))\n"
   "      (return (var_ref t))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 edge)\n"
   "       (declare (in) vec4 x))\n"
   "     ((declare () vec4 t)\n"
   "      (assign (constant bool (1)) (x) (var_ref t) (expression float b2f (expression bool >= (swiz x (var_ref x))(swiz x (var_ref edge)))))\n"
   "      (assign (constant bool (1)) (y) (var_ref t) (expression float b2f (expression bool >= (swiz y (var_ref x))(swiz y (var_ref edge)))))\n"
   "      (assign (constant bool (1)) (z) (var_ref t) (expression float b2f (expression bool >= (swiz z (var_ref x))(swiz z (var_ref edge)))))\n"
   "      (assign (constant bool (1)) (w) (var_ref t) (expression float b2f (expression bool >= (swiz w (var_ref x))(swiz w (var_ref edge)))))\n"
   "      (return (var_ref t))))\n"
   "))\n"
   "\n"
   ""
;
static const char builtin_tan[] =
   "((function tan\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float angle))\n"
   "     ((return (expression float / (expression float sin (var_ref angle)) (expression float cos (var_ref angle))))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 angle))\n"
   "     ((return (expression vec2 / (expression vec2 sin (var_ref angle)) (expression vec2 cos (var_ref angle))))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 angle))\n"
   "     ((return (expression vec3 / (expression vec3 sin (var_ref angle)) (expression vec3 cos (var_ref angle))))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 angle))\n"
   "     ((return (expression vec4 / (expression vec4 sin (var_ref angle)) (expression vec4 cos (var_ref angle))))))\n"
   "))\n"
   ""
;
static const char builtin_tanh[] =
   "((function tanh\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float x))\n"
   "     ((return (expression float /\n"
   "                (expression float -\n"
   "		  (expression float exp (var_ref x))\n"
   "		  (expression float exp (expression float neg (var_ref x))))\n"
   "                (expression float +\n"
   "		  (expression float exp (var_ref x))\n"
   "		  (expression float exp (expression float neg (var_ref x))))))))\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 x))\n"
   "     ((return (expression vec2 /\n"
   "                (expression vec2 -\n"
   "		  (expression vec2 exp (var_ref x))\n"
   "		  (expression vec2 exp (expression vec2 neg (var_ref x))))\n"
   "                (expression vec2 +\n"
   "		  (expression vec2 exp (var_ref x))\n"
   "		  (expression vec2 exp (expression vec2 neg (var_ref x))))))))\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 x))\n"
   "     ((return (expression vec3 /\n"
   "                (expression vec3 -\n"
   "		  (expression vec3 exp (var_ref x))\n"
   "		  (expression vec3 exp (expression vec3 neg (var_ref x))))\n"
   "                (expression vec3 +\n"
   "		  (expression vec3 exp (var_ref x))\n"
   "		  (expression vec3 exp (expression vec3 neg (var_ref x))))))))\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 x))\n"
   "     ((return (expression vec4 /\n"
   "                (expression vec4 -\n"
   "		  (expression vec4 exp (var_ref x))\n"
   "		  (expression vec4 exp (expression vec4 neg (var_ref x))))\n"
   "                (expression vec4 +\n"
   "		  (expression vec4 exp (var_ref x))\n"
   "		  (expression vec4 exp (expression vec4 neg (var_ref x))))))))\n"
   "))\n"
   ""
;
static const char builtin_texelFetch[] =
   "((function texelFetch\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) int P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) int P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) int P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) ivec2 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) ivec2 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) ivec2 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) ivec3 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) ivec3 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) ivec3 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) ivec2 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1DArray sampler)\n"
   "       (declare (in) ivec2 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1DArray sampler)\n"
   "       (declare (in) ivec2 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) ivec3 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2DArray sampler)\n"
   "       (declare (in) ivec3 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2DArray sampler)\n"
   "       (declare (in) ivec3 P) \n"
   "       (declare (in) int lod) )\n"
   "     ((return (txf (var_ref sampler) (var_ref P) (0 0 0) (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture[] =
   "((function texture\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) float P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) float P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) float P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) samplerCube sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isamplerCube sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usamplerCube sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1DArray sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1DArray sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2DArray sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2DArray sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) samplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isamplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usamplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture1D[] =
   "((function texture1D\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) float P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture1DArray[] =
   "((function texture1DArray\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture1DArrayLod[] =
   "((function texture1DArrayLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture1DLod[] =
   "((function texture1DLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture1DProj[] =
   "((function texture1DProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture1DProjLod[] =
   "((function texture1DProjLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2D[] =
   "((function texture2D\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2DArray[] =
   "((function texture2DArray\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2DArrayLod[] =
   "((function texture2DArrayLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2DLod[] =
   "((function texture2DLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2DProj[] =
   "((function texture2DProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2DProjLod[] =
   "((function texture2DProjLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2DRect[] =
   "((function texture2DRect\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DRect sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture2DRectProj[] =
   "((function texture2DRectProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DRect sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DRect sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture3D[] =
   "((function texture3D\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture3DLod[] =
   "((function texture3DLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture3DProj[] =
   "((function texture3DProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_texture3DProjLod[] =
   "((function texture3DProjLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_textureCube[] =
   "((function textureCube\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) samplerCube sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (var_ref P) (0 0 0) 1 () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) samplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_textureCubeLod[] =
   "((function textureCubeLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) samplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_textureGrad[] =
   "((function textureGrad\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) samplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isamplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usamplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (var_ref P) (0 0 0) 1 () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_textureLod[] =
   "((function textureLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) float P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) samplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isamplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usamplerCube sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1DArray sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2DArray sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (var_ref P) (0 0 0) 1 () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_textureProj[] =
   "((function textureProj\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec2 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec3 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec4 P) )\n"
   "     ((return (tex (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float bias) )\n"
   "     ((return (txb (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref bias) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_textureProjGrad[] =
   "((function textureProjGrad\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float dPdx) \n"
   "       (declare (in) float dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) vec2 dPdx) \n"
   "       (declare (in) vec2 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) vec3 dPdx) \n"
   "       (declare (in) vec3 dPdy) )\n"
   "     ((return (txd (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () ((var_ref dPdx) (var_ref dPdy)) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_textureProjLod[] =
   "((function textureProjLod\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec2 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz y (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler1D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz x (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec3 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz z (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler2D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xy (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) sampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature ivec4\n"
   "     (parameters\n"
   "       (declare (in) isampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "   (signature uvec4\n"
   "     (parameters\n"
   "       (declare (in) usampler3D sampler)\n"
   "       (declare (in) vec4 P) \n"
   "       (declare (in) float lod) )\n"
   "     ((return (txl (var_ref sampler) (swiz xyz (var_ref P)) (0 0 0) (swiz w (var_ref P)) () (var_ref lod) ))))\n"
   "\n"
   "))\n"
   ""
;
static const char builtin_transpose[] =
   "((function transpose\n"
   "   (signature mat2\n"
   "     (parameters\n"
   "       (declare (in) mat2 m))\n"
   "     ((declare () mat2 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat3x2\n"
   "     (parameters\n"
   "       (declare (in) mat2x3 m))\n"
   "     ((declare () mat3x2 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat4x2\n"
   "     (parameters\n"
   "       (declare (in) mat2x4 m))\n"
   "     ((declare () mat4x2 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (1)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat2x3\n"
   "     (parameters\n"
   "       (declare (in) mat3x2 m))\n"
   "     ((declare () mat2x3 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat3\n"
   "     (parameters\n"
   "       (declare (in) mat3 m))\n"
   "     ((declare () mat3 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat4x3\n"
   "     (parameters\n"
   "       (declare (in) mat3x4 m))\n"
   "     ((declare () mat4x3 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (2)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat2x4\n"
   "     (parameters\n"
   "       (declare (in) mat4x2 m))\n"
   "     ((declare () mat2x4 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (3)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (3)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat3x4\n"
   "     (parameters\n"
   "       (declare (in) mat4x3 m))\n"
   "     ((declare () mat3x4 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (3)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (3)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (3)))))\n"
   "(return (var_ref t))))\n"
   "\n"
   "   (signature mat4\n"
   "     (parameters\n"
   "       (declare (in) mat4 m))\n"
   "     ((declare () mat4 t)\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (x) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (0)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (y) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (1)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (z) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (2)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (0))) (swiz x (array_ref (var_ref m) (constant int (3)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (1))) (swiz y (array_ref (var_ref m) (constant int (3)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (2))) (swiz z (array_ref (var_ref m) (constant int (3)))))\n"
   "      (assign (constant bool (1)) (w) (array_ref (var_ref t) (constant int (3))) (swiz w (array_ref (var_ref m) (constant int (3)))))\n"
   "(return (var_ref t))))\n"
   ")\n"
   "\n"
   ")\n"
   "\n"
   ""
;
static const char builtin_trunc[] =
   "((function trunc\n"
   "   (signature float\n"
   "     (parameters\n"
   "       (declare (in) float arg0))\n"
   "     ((return (expression float trunc (var_ref arg0)))))\n"
   "\n"
   "   (signature vec2\n"
   "     (parameters\n"
   "       (declare (in) vec2 arg0))\n"
   "     ((return (expression vec2 trunc (var_ref arg0)))))\n"
   "\n"
   "   (signature vec3\n"
   "     (parameters\n"
   "       (declare (in) vec3 arg0))\n"
   "     ((return (expression vec3 trunc (var_ref arg0)))))\n"
   "\n"
   "   (signature vec4\n"
   "     (parameters\n"
   "       (declare (in) vec4 arg0))\n"
   "     ((return (expression vec4 trunc (var_ref arg0)))))\n"
   "))\n"
   ""
;
static const char prototypes_for_100_frag[] =
   "(\n"
   "(function radians\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float degrees))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 degrees))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 degrees))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 degrees))\n"
   "    ()))\n"
   "(function degrees\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float radians))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 radians))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 radians))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 radians))\n"
   "    ()))\n"
   "(function sin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function cos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function tan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function asin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function acos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function atan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y_over_x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y_over_x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y_over_x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y_over_x))\n"
   "    ()))\n"
   "(function pow\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function exp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function exp2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function inversesqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function abs\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
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   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x)\n"
   "      (declare (in) bvec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x)\n"
   "      (declare (in) bvec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x)\n"
   "      (declare (in) bvec4 y))\n"
   "    ()))\n"
   "(function notEqual\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x)\n"
   "      (declare (in) bvec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x)\n"
   "      (declare (in) bvec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x)\n"
   "      (declare (in) bvec4 y))\n"
   "    ()))\n"
   "(function any\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x))\n"
   "    ()))\n"
   "(function all\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x))\n"
   "    ()))\n"
   "(function not\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x))\n"
   "    ()))\n"
   "(function texture2D\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function texture2DProj\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float bias))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function textureCube\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) samplerCube sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) samplerCube sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float bias))\n"
   "    ())))"
;
static const char *functions_for_100_frag [] = {
   builtin_abs,
   builtin_acos,
   builtin_all,
   builtin_any,
   builtin_asin,
   builtin_atan,
   builtin_ceil,
   builtin_clamp,
   builtin_cos,
   builtin_cross,
   builtin_degrees,
   builtin_distance,
   builtin_dot,
   builtin_equal,
   builtin_exp,
   builtin_exp2,
   builtin_faceforward,
   builtin_floor,
   builtin_fract,
   builtin_greaterThan,
   builtin_greaterThanEqual,
   builtin_inversesqrt,
   builtin_length,
   builtin_lessThan,
   builtin_lessThanEqual,
   builtin_log,
   builtin_log2,
   builtin_matrixCompMult,
   builtin_max,
   builtin_min,
   builtin_mix,
   builtin_mod,
   builtin_normalize,
   builtin_not,
   builtin_notEqual,
   builtin_pow,
   builtin_radians,
   builtin_reflect,
   builtin_refract,
   builtin_sign,
   builtin_sin,
   builtin_smoothstep,
   builtin_sqrt,
   builtin_step,
   builtin_tan,
   builtin_texture2D,
   builtin_texture2DProj,
   builtin_textureCube,
};
static const char prototypes_for_100_vert[] =
   "(\n"
   "(function radians\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float degrees))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 degrees))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 degrees))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 degrees))\n"
   "    ()))\n"
   "(function degrees\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float radians))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 radians))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 radians))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 radians))\n"
   "    ()))\n"
   "(function sin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function cos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function tan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function asin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function acos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function atan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y_over_x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y_over_x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y_over_x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y_over_x))\n"
   "    ()))\n"
   "(function pow\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function exp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function exp2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function inversesqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
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   "  (signature vec3\n"
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   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function abs\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
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   "(function sign\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
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   "  (signature vec3\n"
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   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function floor\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function ceil\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function fract\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function mod\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
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   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
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   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function min\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function max\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
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   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
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   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
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   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function clamp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 minVal)\n"
   "      (declare (in) vec2 maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 minVal)\n"
   "      (declare (in) vec3 maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 minVal)\n"
   "      (declare (in) vec4 maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ()))\n"
   "(function mix\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 a))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 a))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 a))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) float a))\n"
   "    ()))\n"
   "(function step\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 edge)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 edge)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 edge)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function smoothstep\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 edge0)\n"
   "      (declare (in) vec2 edge1)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 edge0)\n"
   "      (declare (in) vec3 edge1)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 edge0)\n"
   "      (declare (in) vec4 edge1)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function length\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function distance\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float p0)\n"
   "      (declare (in) float p1))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec2 p0)\n"
   "      (declare (in) vec2 p1))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec3 p0)\n"
   "      (declare (in) vec3 p1))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec4 p0)\n"
   "      (declare (in) vec4 p1))\n"
   "    ()))\n"
   "(function dot\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function cross\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ()))\n"
   "(function normalize\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function faceforward\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float N)\n"
   "      (declare (in) float I)\n"
   "      (declare (in) float Nref))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 N)\n"
   "      (declare (in) vec2 I)\n"
   "      (declare (in) vec2 Nref))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 N)\n"
   "      (declare (in) vec3 I)\n"
   "      (declare (in) vec3 Nref))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 N)\n"
   "      (declare (in) vec4 I)\n"
   "      (declare (in) vec4 Nref))\n"
   "    ()))\n"
   "(function reflect\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float I)\n"
   "      (declare (in) float N))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 I)\n"
   "      (declare (in) vec2 N))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 I)\n"
   "      (declare (in) vec3 N))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 I)\n"
   "      (declare (in) vec4 N))\n"
   "    ()))\n"
   "(function refract\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float I)\n"
   "      (declare (in) float N)\n"
   "      (declare (in) float eta))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 I)\n"
   "      (declare (in) vec2 N)\n"
   "      (declare (in) float eta))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 I)\n"
   "      (declare (in) vec3 N)\n"
   "      (declare (in) float eta))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 I)\n"
   "      (declare (in) vec4 N)\n"
   "      (declare (in) float eta))\n"
   "    ()))\n"
   "(function matrixCompMult\n"
   "  (signature mat2\n"
   "    (parameters\n"
   "      (declare (in) mat2 x)\n"
   "      (declare (in) mat2 y))\n"
   "    ())\n"
   "  (signature mat3\n"
   "    (parameters\n"
   "      (declare (in) mat3 x)\n"
   "      (declare (in) mat3 y))\n"
   "    ())\n"
   "  (signature mat4\n"
   "    (parameters\n"
   "      (declare (in) mat4 x)\n"
   "      (declare (in) mat4 y))\n"
   "    ()))\n"
   "(function lessThan\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ()))\n"
   "(function lessThanEqual\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ()))\n"
   "(function greaterThan\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ()))\n"
   "(function greaterThanEqual\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ()))\n"
   "(function equal\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x)\n"
   "      (declare (in) bvec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x)\n"
   "      (declare (in) bvec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x)\n"
   "      (declare (in) bvec4 y))\n"
   "    ()))\n"
   "(function notEqual\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x)\n"
   "      (declare (in) bvec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x)\n"
   "      (declare (in) bvec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x)\n"
   "      (declare (in) bvec4 y))\n"
   "    ()))\n"
   "(function any\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x))\n"
   "    ()))\n"
   "(function all\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x))\n"
   "    ())\n"
   "  (signature bool\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x))\n"
   "    ()))\n"
   "(function not\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x))\n"
   "    ()))\n"
   "(function texture2D\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord))\n"
   "    ()))\n"
   "(function texture2DProj\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ()))\n"
   "(function texture2DLod\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
   "(function texture2DProjLod\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float lod))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
   "(function textureCube\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) samplerCube sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ()))\n"
   "(function textureCubeLod\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) samplerCube sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float lod))\n"
   "    ())))"
;
static const char *functions_for_100_vert [] = {
   builtin_abs,
   builtin_acos,
   builtin_all,
   builtin_any,
   builtin_asin,
   builtin_atan,
   builtin_ceil,
   builtin_clamp,
   builtin_cos,
   builtin_cross,
   builtin_degrees,
   builtin_distance,
   builtin_dot,
   builtin_equal,
   builtin_exp,
   builtin_exp2,
   builtin_faceforward,
   builtin_floor,
   builtin_fract,
   builtin_greaterThan,
   builtin_greaterThanEqual,
   builtin_inversesqrt,
   builtin_length,
   builtin_lessThan,
   builtin_lessThanEqual,
   builtin_log,
   builtin_log2,
   builtin_matrixCompMult,
   builtin_max,
   builtin_min,
   builtin_mix,
   builtin_mod,
   builtin_normalize,
   builtin_not,
   builtin_notEqual,
   builtin_pow,
   builtin_radians,
   builtin_reflect,
   builtin_refract,
   builtin_sign,
   builtin_sin,
   builtin_smoothstep,
   builtin_sqrt,
   builtin_step,
   builtin_tan,
   builtin_texture2D,
   builtin_texture2DLod,
   builtin_texture2DProj,
   builtin_texture2DProjLod,
   builtin_textureCube,
   builtin_textureCubeLod,
};
static const char prototypes_for_110_frag[] =
   "(\n"
   "(function radians\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float degrees))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 degrees))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 degrees))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 degrees))\n"
   "    ()))\n"
   "(function degrees\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float radians))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 radians))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 radians))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 radians))\n"
   "    ()))\n"
   "(function sin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function cos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function tan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function asin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function acos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function atan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y_over_x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y_over_x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y_over_x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y_over_x))\n"
   "    ()))\n"
   "(function pow\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function exp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function exp2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function inversesqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function abs\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sign\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function floor\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function ceil\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function fract\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function mod\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function min\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function max\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function clamp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 minVal)\n"
   "      (declare (in) vec2 maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 minVal)\n"
   "      (declare (in) vec3 maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 minVal)\n"
   "      (declare (in) vec4 maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ()))\n"
   "(function mix\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 a))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 a))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 a))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) float a))\n"
   "    ()))\n"
   "(function step\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 edge)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 edge)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 edge)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function smoothstep\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 edge0)\n"
   "      (declare (in) vec2 edge1)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 edge0)\n"
   "      (declare (in) vec3 edge1)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 edge0)\n"
   "      (declare (in) vec4 edge1)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float edge0)\n"
   "      (declare (in) float edge1)\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function length\n"
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   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise2\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise3\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise4\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ())))"
;
static const char *functions_for_110_frag [] = {
   builtin_abs,
   builtin_acos,
   builtin_all,
   builtin_any,
   builtin_asin,
   builtin_atan,
   builtin_ceil,
   builtin_clamp,
   builtin_cos,
   builtin_cross,
   builtin_dFdx,
   builtin_dFdy,
   builtin_degrees,
   builtin_distance,
   builtin_dot,
   builtin_equal,
   builtin_exp,
   builtin_exp2,
   builtin_faceforward,
   builtin_floor,
   builtin_fract,
   builtin_fwidth,
   builtin_greaterThan,
   builtin_greaterThanEqual,
   builtin_inversesqrt,
   builtin_length,
   builtin_lessThan,
   builtin_lessThanEqual,
   builtin_log,
   builtin_log2,
   builtin_matrixCompMult,
   builtin_max,
   builtin_min,
   builtin_mix,
   builtin_mod,
   builtin_noise1,
   builtin_noise2,
   builtin_noise3,
   builtin_noise4,
   builtin_normalize,
   builtin_not,
   builtin_notEqual,
   builtin_pow,
   builtin_radians,
   builtin_reflect,
   builtin_refract,
   builtin_shadow1D,
   builtin_shadow1DProj,
   builtin_shadow2D,
   builtin_shadow2DProj,
   builtin_sign,
   builtin_sin,
   builtin_smoothstep,
   builtin_sqrt,
   builtin_step,
   builtin_tan,
   builtin_texture1D,
   builtin_texture1DProj,
   builtin_texture2D,
   builtin_texture2DProj,
   builtin_texture3D,
   builtin_texture3DProj,
   builtin_textureCube,
};
static const char prototypes_for_110_vert[] =
   "(\n"
   "(function radians\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float degrees))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 degrees))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 degrees))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 degrees))\n"
   "    ()))\n"
   "(function degrees\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float radians))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 radians))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 radians))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 radians))\n"
   "    ()))\n"
   "(function sin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function cos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function tan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function asin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function acos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function atan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y_over_x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y_over_x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y_over_x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y_over_x))\n"
   "    ()))\n"
   "(function pow\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function exp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function exp2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function inversesqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function abs\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sign\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function floor\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function ceil\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function fract\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function mod\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function min\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function max\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function clamp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 minVal)\n"
   "      (declare (in) vec2 maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 minVal)\n"
   "      (declare (in) vec3 maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 minVal)\n"
   "      (declare (in) vec4 maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ()))\n"
   "(function mix\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 a))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 a))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 a))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) float a))\n"
   "    ()))\n"
   "(function step\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float edge)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 edge)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 edge)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 edge)\n"
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   "    (parameters\n"
   "      (declare (in) sampler2DShadow sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
   "(function shadow1DProjLod\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1DShadow sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
   "(function shadow2DProjLod\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2DShadow sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
   "(function noise1\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise2\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise3\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise4\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ())))"
;
static const char *functions_for_110_vert [] = {
   builtin_abs,
   builtin_acos,
   builtin_all,
   builtin_any,
   builtin_asin,
   builtin_atan,
   builtin_ceil,
   builtin_clamp,
   builtin_cos,
   builtin_cross,
   builtin_degrees,
   builtin_distance,
   builtin_dot,
   builtin_equal,
   builtin_exp,
   builtin_exp2,
   builtin_faceforward,
   builtin_floor,
   builtin_fract,
   builtin_ftransform,
   builtin_greaterThan,
   builtin_greaterThanEqual,
   builtin_inversesqrt,
   builtin_length,
   builtin_lessThan,
   builtin_lessThanEqual,
   builtin_log,
   builtin_log2,
   builtin_matrixCompMult,
   builtin_max,
   builtin_min,
   builtin_mix,
   builtin_mod,
   builtin_noise1,
   builtin_noise2,
   builtin_noise3,
   builtin_noise4,
   builtin_normalize,
   builtin_not,
   builtin_notEqual,
   builtin_pow,
   builtin_radians,
   builtin_reflect,
   builtin_refract,
   builtin_shadow1D,
   builtin_shadow1DLod,
   builtin_shadow1DProj,
   builtin_shadow1DProjLod,
   builtin_shadow2D,
   builtin_shadow2DLod,
   builtin_shadow2DProj,
   builtin_shadow2DProjLod,
   builtin_sign,
   builtin_sin,
   builtin_smoothstep,
   builtin_sqrt,
   builtin_step,
   builtin_tan,
   builtin_texture1D,
   builtin_texture1DLod,
   builtin_texture1DProj,
   builtin_texture1DProjLod,
   builtin_texture2D,
   builtin_texture2DLod,
   builtin_texture2DProj,
   builtin_texture2DProjLod,
   builtin_texture3D,
   builtin_texture3DLod,
   builtin_texture3DProj,
   builtin_texture3DProjLod,
   builtin_textureCube,
   builtin_textureCubeLod,
};
static const char prototypes_for_120_frag[] =
   "(\n"
   "(function radians\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float degrees))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 degrees))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 degrees))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 degrees))\n"
   "    ()))\n"
   "(function degrees\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float radians))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 radians))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 radians))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 radians))\n"
   "    ()))\n"
   "(function sin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function cos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function tan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function asin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function acos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function atan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y_over_x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y_over_x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y_over_x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y_over_x))\n"
   "    ()))\n"
   "(function pow\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function exp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function exp2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function inversesqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function abs\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sign\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function floor\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function ceil\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function fract\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function mod\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function min\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function max\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float y))\n"
   "    ()))\n"
   "(function clamp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 minVal)\n"
   "      (declare (in) vec2 maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 minVal)\n"
   "      (declare (in) vec3 maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 minVal)\n"
   "      (declare (in) vec4 maxVal))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) float minVal)\n"
   "      (declare (in) float maxVal))\n"
   "    ()))\n"
   "(function mix\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float a))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 a))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 a))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
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   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) float coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) float coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function texture1DProj\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec2 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec2 coord)\n"
   "      (declare (in) float bias))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function texture2D\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function texture2DProj\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float bias))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function texture3D\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler3D sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler3D sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function texture3DProj\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler3D sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler3D sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function textureCube\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) samplerCube sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) samplerCube sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function shadow1D\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1DShadow sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1DShadow sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function shadow2D\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2DShadow sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2DShadow sampler)\n"
   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function shadow1DProj\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1DShadow sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1DShadow sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function shadow2DProj\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2DShadow sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2DShadow sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float bias))\n"
   "    ()))\n"
   "(function dFdx\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float p))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 p))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 p))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 p))\n"
   "    ()))\n"
   "(function dFdy\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float p))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 p))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 p))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 p))\n"
   "    ()))\n"
   "(function fwidth\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float p))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 p))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 p))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 p))\n"
   "    ()))\n"
   "(function noise1\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise2\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise3\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise4\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ())))"
;
static const char *functions_for_120_frag [] = {
   builtin_abs,
   builtin_acos,
   builtin_all,
   builtin_any,
   builtin_asin,
   builtin_atan,
   builtin_ceil,
   builtin_clamp,
   builtin_cos,
   builtin_cross,
   builtin_dFdx,
   builtin_dFdy,
   builtin_degrees,
   builtin_distance,
   builtin_dot,
   builtin_equal,
   builtin_exp,
   builtin_exp2,
   builtin_faceforward,
   builtin_floor,
   builtin_fract,
   builtin_fwidth,
   builtin_greaterThan,
   builtin_greaterThanEqual,
   builtin_inversesqrt,
   builtin_length,
   builtin_lessThan,
   builtin_lessThanEqual,
   builtin_log,
   builtin_log2,
   builtin_matrixCompMult,
   builtin_max,
   builtin_min,
   builtin_mix,
   builtin_mod,
   builtin_noise1,
   builtin_noise2,
   builtin_noise3,
   builtin_noise4,
   builtin_normalize,
   builtin_not,
   builtin_notEqual,
   builtin_outerProduct,
   builtin_pow,
   builtin_radians,
   builtin_reflect,
   builtin_refract,
   builtin_shadow1D,
   builtin_shadow1DProj,
   builtin_shadow2D,
   builtin_shadow2DProj,
   builtin_sign,
   builtin_sin,
   builtin_smoothstep,
   builtin_sqrt,
   builtin_step,
   builtin_tan,
   builtin_texture1D,
   builtin_texture1DProj,
   builtin_texture2D,
   builtin_texture2DProj,
   builtin_texture3D,
   builtin_texture3DProj,
   builtin_textureCube,
   builtin_transpose,
};
static const char prototypes_for_120_vert[] =
   "(\n"
   "(function radians\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float degrees))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 degrees))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 degrees))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 degrees))\n"
   "    ()))\n"
   "(function degrees\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float radians))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 radians))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 radians))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 radians))\n"
   "    ()))\n"
   "(function sin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function cos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function tan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function asin\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function acos\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float angle))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 angle))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 angle))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 angle))\n"
   "    ()))\n"
   "(function atan\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y)\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y)\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y)\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y)\n"
   "      (declare (in) vec4 x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float y_over_x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 y_over_x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 y_over_x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 y_over_x))\n"
   "    ()))\n"
   "(function pow\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x)\n"
   "      (declare (in) float y))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ()))\n"
   "(function exp\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function exp2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function log2\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function inversesqrt\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function abs\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function sign\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function floor\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function ceil\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function fract\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
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   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ()))\n"
   "(function greaterThanEqual\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) ivec2 x)\n"
   "      (declare (in) ivec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
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   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ()))\n"
   "(function equal\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
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   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
   "    ())\n"
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   "      (declare (in) vec4 x)\n"
   "      (declare (in) vec4 y))\n"
   "    ())\n"
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   "    ())\n"
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   "    (parameters\n"
   "      (declare (in) ivec3 x)\n"
   "      (declare (in) ivec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) ivec4 x)\n"
   "      (declare (in) ivec4 y))\n"
   "    ())\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) bvec2 x)\n"
   "      (declare (in) bvec2 y))\n"
   "    ())\n"
   "  (signature bvec3\n"
   "    (parameters\n"
   "      (declare (in) bvec3 x)\n"
   "      (declare (in) bvec3 y))\n"
   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x)\n"
   "      (declare (in) bvec4 y))\n"
   "    ()))\n"
   "(function notEqual\n"
   "  (signature bvec2\n"
   "    (parameters\n"
   "      (declare (in) vec2 x)\n"
   "      (declare (in) vec2 y))\n"
   "    ())\n"
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   "      (declare (in) vec3 x)\n"
   "      (declare (in) vec3 y))\n"
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   "      (declare (in) vec4 y))\n"
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   "    ()))\n"
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   "    (parameters\n"
   "      (declare (in) bvec2 x))\n"
   "    ())\n"
   "  (signature bvec3\n"
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   "    ())\n"
   "  (signature bvec4\n"
   "    (parameters\n"
   "      (declare (in) bvec4 x))\n"
   "    ()))\n"
   "(function texture1D\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) float coord))\n"
   "    ()))\n"
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   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec2 coord))\n"
   "    ())\n"
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   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec4 coord))\n"
   "    ()))\n"
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   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) float coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
   "(function texture1DProjLod\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec2 coord)\n"
   "      (declare (in) float lod))\n"
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   "      (declare (in) sampler1D sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
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   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord))\n"
   "    ()))\n"
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   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec3 coord))\n"
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   "      (declare (in) sampler2D sampler)\n"
   "      (declare (in) vec2 coord)\n"
   "      (declare (in) float lod))\n"
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   "      (declare (in) sampler3D sampler)\n"
   "      (declare (in) vec3 coord))\n"
   "    ()))\n"
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   "      (declare (in) sampler3D sampler)\n"
   "      (declare (in) vec4 coord))\n"
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   "      (declare (in) float lod))\n"
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   "      (declare (in) float lod))\n"
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   "      (declare (in) vec3 coord))\n"
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   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
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   "      (declare (in) vec3 coord))\n"
   "    ()))\n"
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   "      (declare (in) vec3 coord))\n"
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   "      (declare (in) vec4 coord))\n"
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   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float lod))\n"
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   "      (declare (in) vec3 coord)\n"
   "      (declare (in) float lod))\n"
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   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
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   "      (declare (in) sampler2DShadow sampler)\n"
   "      (declare (in) vec4 coord)\n"
   "      (declare (in) float lod))\n"
   "    ()))\n"
   "(function noise1\n"
   "  (signature float\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature float\n"
   "    (parameters\n"
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   "    ())\n"
   "  (signature float\n"
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   "(function noise2\n"
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   "    ())\n"
   "  (signature vec2\n"
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   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise3\n"
   "  (signature vec3\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec3\n"
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   "  (signature vec3\n"
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   "    ())\n"
   "  (signature vec3\n"
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   "      (declare (in) vec4 x))\n"
   "    ()))\n"
   "(function noise4\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) float x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec2 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec3 x))\n"
   "    ())\n"
   "  (signature vec4\n"
   "    (parameters\n"
   "      (declare (in) vec4 x))\n"
   "    ())))"
;
static const char *functions_for_120_vert [] = {
   builtin_abs,
   builtin_acos,
   builtin_all,
   builtin_any,
   builtin_asin,
   builtin_atan,
   builtin_ceil,
   builtin_clamp,
   builtin_cos,
   builtin_cross,
   builtin_degrees,
   builtin_distance,
   builtin_dot,
   builtin_equal,
   builtin_exp,
   builtin_exp2,
   builtin_faceforward,
   builtin_floor,
   builtin_fract,
   builtin_ftransform,
   builtin_greaterThan,
   builtin_greaterThanEqual,
   builtin_inversesqrt,
   builtin_length,
   builtin_lessThan,
   builtin_lessThanEqual,
   builtin_log,
   builtin_log2,
   builtin_matrixCompMult,
   builtin_max,
   builtin_min,
   builtin_mix,
   builtin_mod,
   builtin_noise1,
   builtin_noise2,
   builtin_noise3,
   builtin_noise4,
   builtin_normalize,
   builtin_not,
   builtin_notEqual,
   builtin_outerProduct,
   builtin_pow,
   builtin_radians,
   builtin_reflect,
   builtin_refract,
   builtin_shadow1D,
   builtin_shadow1DLod,
   builtin_shadow1DProj,
   builtin_shadow1DProjLod,
   builtin_shadow2D,
   builtin_shadow2DLod,
   builtin_shadow2DProj,
   builtin_shadow2DProjLod,
   builtin_sign,
   builtin_sin,
   builtin_smoothstep,
   builtin_sqrt,
   builtin_step,
   builtin_tan,
   builtin_texture1D,
   builtin_texture1DLod,
   builtin_texture1DProj,
   builtin_texture1DProjLod,
   builtin_texture2D,
   builtin_texture2DLod,
   builtin_texture2DProj,
   builtin_texture2DProjLod,
   builtin_texture3D,
   builtin_texture3DLod,
   builtin_texture3DProj,
   builtin_texture3DProjLod,
   builtin_textureCube,
   builtin_textureCubeLod,
   builtin_transpose,
};
static const char prototypes_for_130_frag[] =
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static const char *functions_for_130_frag [] = {
   builtin_abs,
   builtin_acos,
   builtin_acosh,
   builtin_all,
   builtin_any,
   builtin_asin,
   builtin_asinh,
   builtin_atan,
   builtin_atanh,
   builtin_ceil,
   builtin_clamp,
   builtin_cos,
   builtin_cosh,
   builtin_cross,
   builtin_dFdx,
   builtin_dFdy,
   builtin_degrees,
   builtin_distance,
   builtin_dot,
   builtin_equal,
   builtin_exp,
   builtin_exp2,
   builtin_faceforward,
   builtin_floor,
   builtin_fract,
   builtin_fwidth,
   builtin_greaterThan,
   builtin_greaterThanEqual,
   builtin_inversesqrt,
   builtin_length,
   builtin_lessThan,
   builtin_lessThanEqual,
   builtin_log,
   builtin_log2,
   builtin_matrixCompMult,
   builtin_max,
   builtin_min,
   builtin_mix,
   builtin_mod,
   builtin_modf,
   builtin_noise1,
   builtin_noise2,
   builtin_noise3,
   builtin_noise4,
   builtin_normalize,
   builtin_not,
   builtin_notEqual,
   builtin_outerProduct,
   builtin_pow,
   builtin_radians,
   builtin_reflect,
   builtin_refract,
   builtin_round,
   builtin_roundEven,
   builtin_shadow1D,
   builtin_shadow1DLod,
   builtin_shadow1DProj,
   builtin_shadow1DProjLod,
   builtin_shadow2D,
   builtin_shadow2DLod,
   builtin_shadow2DProj,
   builtin_shadow2DProjLod,
   builtin_sign,
   builtin_sin,
   builtin_sinh,
   builtin_smoothstep,
   builtin_sqrt,
   builtin_step,
   builtin_tan,
   builtin_tanh,
   builtin_texelFetch,
   builtin_texture,
   builtin_texture1D,
   builtin_texture1DLod,
   builtin_texture1DProj,
   builtin_texture1DProjLod,
   builtin_texture2D,
   builtin_texture2DLod,
   builtin_texture2DProj,
   builtin_texture2DProjLod,
   builtin_texture3D,
   builtin_texture3DLod,
   builtin_texture3DProj,
   builtin_texture3DProjLod,
   builtin_textureCube,
   builtin_textureCubeLod,
   builtin_textureGrad,
   builtin_textureLod,
   builtin_textureProj,
   builtin_textureProjGrad,
   builtin_textureProjLod,
   builtin_transpose,
   builtin_trunc,
};
static const char prototypes_for_130_vert[] =
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