Merge commit 'origin/gallium-master-merge'

This is the big merge of the gallium-0.2 branch into master.
gallium-master-merge was just the staging area for it.
Both gallium-0.2 and gallium-master-merge are considered closed now.

Conflicts:

	progs/demos/Makefile
	src/mesa/main/state.c
	src/mesa/main/texenvprogram.c

12 files changed, 493 insertions, 0 deletions

diff --git a/progs/vpglsl/.gitignore b/progs/vpglsl/.gitignore
new file mode 100644
index 00000000000..a5ff9935254
--- /dev/null
+++ b/progs/vpglsl/.gitignore
@@ -0,0 +1 @@
+vp-tris
diff --git a/progs/vpglsl/Makefile b/progs/vpglsl/Makefile
new file mode 100644
index 00000000000..313b4dfa227
--- /dev/null
+++ b/progs/vpglsl/Makefile
@@ -0,0 +1,52 @@
+# progs/tests/Makefile
+
+
+# These programs aren't intended to be included with the normal distro.
+# They're not too interesting but they're good for testing.
+
+TOP = ../..
+include $(TOP)/configs/current
+
+LIBS = -L$(TOP)/$(LIB_DIR) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) $(APP_LIB_DEPS)
+
+SOURCES = \
+	vp-tris.c
+
+
+
+PROGS = $(SOURCES:%.c=%)
+
+INCLUDES = -I. -I$(TOP)/include -I../samples
+
+
+##### RULES #####
+
+.SUFFIXES:
+.SUFFIXES: .c
+
+.c:
+	$(CC) $(INCLUDES) $(CFLAGS) $< $(LIBS) -o $@
+
+.c.o:
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@
+
+.S.o:
+	$(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES)  $< -o $@
+
+
+##### TARGETS #####
+
+default: $(PROGS)
+
+clean:
+	rm -f $(PROGS)
+	rm -f *.o
+	rm -f getproclist.h
+
+
+
+
+
+# Emacs tags
+tags:
+	etags `find . -name \*.[ch]` `find ../include`
diff --git a/progs/vpglsl/for.glsl b/progs/vpglsl/for.glsl
new file mode 100644
index 00000000000..45d6845dacc
--- /dev/null
+++ b/progs/vpglsl/for.glsl
@@ -0,0 +1,7 @@
+
+void main() {
+   gl_Position = gl_Vertex;
+   gl_FrontColor = vec4(0);
+   for (int i = 0; i < 4; ++i)
+       gl_FrontColor += gl_Color;
+}
diff --git a/progs/vpglsl/if.glsl b/progs/vpglsl/if.glsl
new file mode 100644
index 00000000000..174f69c19c9
--- /dev/null
+++ b/progs/vpglsl/if.glsl
@@ -0,0 +1,7 @@
+
+void main() {
+    gl_FrontColor = gl_Color;
+    gl_Position = gl_Vertex;
+    if (gl_Position.x < 0.5)
+	gl_FrontColor = vec4(1.0, 0.0, 0.0, 1.0);
+}
diff --git a/progs/vpglsl/ifelse.glsl b/progs/vpglsl/ifelse.glsl
new file mode 100644
index 00000000000..645b2117a17
--- /dev/null
+++ b/progs/vpglsl/ifelse.glsl
@@ -0,0 +1,8 @@
+
+void main() {
+    gl_Position = gl_Vertex;
+    if (gl_Position.x < 0.5)
+	gl_FrontColor = vec4(1.0, 0.0, 0.0, 1.0);
+    else
+	gl_FrontColor = gl_Color;
+}
diff --git a/progs/vpglsl/nestedifs.glsl b/progs/vpglsl/nestedifs.glsl
new file mode 100644
index 00000000000..abb235cd65b
--- /dev/null
+++ b/progs/vpglsl/nestedifs.glsl
@@ -0,0 +1,13 @@
+
+void main() {
+   gl_Position = gl_Vertex;
+    if (gl_Position.x < 0.5) {
+	if (gl_Position.y < 0.20) {
+	    gl_FrontColor = vec4(1.0, 0.0, 0.0, 1.0);
+	} else {
+	    gl_FrontColor = vec4(0.0, 1.0, 0.0, 1.0);
+	}
+        gl_FrontColor.y = 1.0;
+    } else
+	gl_FrontColor = gl_Color;
+}
diff --git a/progs/vpglsl/nestedswizzle.glsl b/progs/vpglsl/nestedswizzle.glsl
new file mode 100644
index 00000000000..a3adb3dfeb2
--- /dev/null
+++ b/progs/vpglsl/nestedswizzle.glsl
@@ -0,0 +1,9 @@
+
+void main() {
+   gl_Position = gl_Vertex;
+   gl_FrontColor = gl_Color;
+   if (gl_Position.x < 0.5) {
+      gl_FrontColor.y = 1.0;
+   }
+   gl_FrontColor.xzw = vec3(0, 0, 1);
+}
diff --git a/progs/vpglsl/off2f.glsl b/progs/vpglsl/off2f.glsl
new file mode 100644
index 00000000000..e06cb42a0ed
--- /dev/null
+++ b/progs/vpglsl/off2f.glsl
@@ -0,0 +1,18 @@
+const int KernelSize = 8;
+uniform vec2 Offset2f[KernelSize];
+uniform vec4 KernelValue4f[KernelSize];
+
+void main(void)
+{
+    int i;
+    vec4 sum = vec4(0.0);
+    vec4 tmp = gl_Color;
+    vec2 rg, ba;
+    gl_Position = gl_Vertex;
+
+    rg = Offset2f[4];
+    ba = Offset2f[5];
+
+
+    gl_FrontColor = KernelValue4f[0] * vec4(rg, ba);
+}
diff --git a/progs/vpglsl/varfor1f.glsl b/progs/vpglsl/varfor1f.glsl
new file mode 100644
index 00000000000..9c3e8f2a238
--- /dev/null
+++ b/progs/vpglsl/varfor1f.glsl
@@ -0,0 +1,22 @@
+const int KernelSize = 16;
+uniform float KernelValue1f[KernelSize];
+
+void main(void)
+{
+    int i;
+    vec4 sum = vec4(0.0);
+    vec4 tmp = gl_Color;
+    gl_Position = gl_Vertex;
+
+    for (i = 0; i < KernelSize; ++i) {
+        float x, y, z, w;
+
+        x = KernelValue1f[i]; ++i;
+        y = KernelValue1f[i]; ++i;
+        z = KernelValue1f[i]; ++i;
+        w = KernelValue1f[i];
+
+        sum += tmp * vec4(x, y, z, w);
+    }
+    gl_FrontColor = sum;
+}
diff --git a/progs/vpglsl/varfor2f.glsl b/progs/vpglsl/varfor2f.glsl
new file mode 100644
index 00000000000..d98a1100458
--- /dev/null
+++ b/progs/vpglsl/varfor2f.glsl
@@ -0,0 +1,24 @@
+const int KernelSize = 9;
+uniform vec2 KernelValue2f[KernelSize];
+
+void main(void)
+{
+    int i;
+    vec4 sum = vec4(0.0);
+    vec4 tmp = gl_Color;
+    gl_Position = gl_Vertex;
+
+    for (i = 0; i < KernelSize; ++i) {
+        vec2 rg, ba;
+
+        rg = KernelValue2f[i];
+        ++i;
+        if (i < KernelSize)
+	    ba = KernelValue2f[i];
+	else
+	    ba = vec2(0, 0);
+
+        sum += tmp * vec4(rg, ba);
+    }
+    gl_FrontColor = sum;
+}
diff --git a/progs/vpglsl/varfor4f.glsl b/progs/vpglsl/varfor4f.glsl
new file mode 100644
index 00000000000..c70ba0356fd
--- /dev/null
+++ b/progs/vpglsl/varfor4f.glsl
@@ -0,0 +1,19 @@
+const int KernelSize = 4;
+uniform vec4 KernelValue4f[KernelSize];
+
+void main(void)
+{
+    int i;
+    vec4 sum = vec4(0.0);
+    vec4 tmp = gl_Color;
+    gl_Position = gl_Vertex;
+
+    for (i = 0; i < KernelSize; ++i) {
+        vec4 rgba;
+
+        rgba = KernelValue4f[i];
+
+        sum += tmp * rgba;
+    }
+    gl_FrontColor = sum;
+}
diff --git a/progs/vpglsl/vp-tris.c b/progs/vpglsl/vp-tris.c
new file mode 100644
index 00000000000..9108d3f1978
--- /dev/null
+++ b/progs/vpglsl/vp-tris.c
@@ -0,0 +1,313 @@
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+static const char *filename = NULL;
+static GLuint nr_steps = 4;
+
+static GLuint fragShader;
+static GLuint vertShader;
+static GLuint program;
+
+static void usage( char *name )
+{
+   fprintf( stderr, "usage: %s [ options ] shader_filename\n", name );
+   fprintf( stderr, "\n" );
+   fprintf( stderr, "options:\n" );
+   fprintf( stderr, "    -f     flat shaded\n" );
+   fprintf( stderr, "    -nNr  subdivision steps\n" );
+}
+
+
+static void load_and_compile_shader(GLuint shader, const char *text)
+{
+   GLint stat;
+
+   glShaderSource(shader, 1, (const GLchar **) &text, NULL);
+
+   glCompileShader(shader);
+
+   glGetShaderiv(shader, GL_COMPILE_STATUS, &stat);
+   if (!stat) {
+      GLchar log[1000];
+      GLsizei len;
+      glGetShaderInfoLog(shader, 1000, &len, log);
+      fprintf(stderr, "vp-tris: problem compiling shader:\n%s\n", log);
+      exit(1);
+   }
+}
+
+static void read_shader(GLuint shader, const char *filename)
+{
+   const int max = 100*1000;
+   int n;
+   char *buffer = (char*) malloc(max);
+   FILE *f = fopen(filename, "r");
+   if (!f) {
+      fprintf(stderr, "vp-tris: Unable to open shader file %s\n", filename);
+      exit(1);
+   }
+
+   n = fread(buffer, 1, max, f);
+   printf("vp-tris: read %d bytes from shader file %s\n", n, filename);
+   if (n > 0) {
+      buffer[n] = 0;
+      load_and_compile_shader(shader, buffer);
+   }
+
+   fclose(f);
+   free(buffer);
+}
+
+static void check_link(GLuint prog)
+{
+   GLint stat;
+   glGetProgramiv(prog, GL_LINK_STATUS, &stat);
+   if (!stat) {
+      GLchar log[1000];
+      GLsizei len;
+      glGetProgramInfoLog(prog, 1000, &len, log);
+      fprintf(stderr, "Linker error:\n%s\n", log);
+   }
+}
+
+static void setup_uniforms()
+{
+   {
+      GLuint loc1f = glGetUniformLocationARB(program, "Offset1f");
+      GLuint loc2f = glGetUniformLocationARB(program, "Offset2f");
+      GLuint loc4f = glGetUniformLocationARB(program, "Offset4f");
+      GLfloat vecKer[] =
+         { 1.0, 0.0, 0.0,  1.0,
+           0.0, 1.0, 0.0,  1.0,
+           1.0, 0.0, 0.0,  1.0,
+           0.0, 0.0, 0.0,  1.0
+         };
+      if (loc1f >= 0)
+         glUniform1fv(loc1f, 16, vecKer);
+
+      if (loc2f >= 0)
+         glUniform2fv(loc2f, 8, vecKer);
+
+      if (loc4f >= 0)
+         glUniform4fv(loc4f, 4, vecKer);
+
+   }
+
+   GLuint loc1f = glGetUniformLocationARB(program, "KernelValue1f");
+   GLuint loc2f = glGetUniformLocationARB(program, "KernelValue2f");
+   GLuint loc4f = glGetUniformLocationARB(program, "KernelValue4f");
+   GLfloat vecKer[] =
+      { 1.0, 0.0, 0.0,  0.25,
+        0.0, 1.0, 0.0,  0.25,
+        0.0, 0.0, 1.0,  0.25,
+        0.0, 0.0, 0.0,  0.25,
+        0.5, 0.0, 0.0,  0.35,
+        0.0, 0.5, 0.0,  0.35,
+        0.0, 0.0, 0.5,  0.35,
+        0.0, 0.0, 0.0,  0.35
+      };
+   if (loc1f >= 0)
+      glUniform1fv(loc1f, 16, vecKer);
+
+   if (loc2f >= 0)
+      glUniform2fv(loc2f, 8, vecKer);
+
+   if (loc4f >= 0)
+      glUniform4fv(loc4f, 4, vecKer);
+}
+
+static void prepare_shaders()
+{
+   static const char *fragShaderText =
+      "void main() {\n"
+      "    gl_FragColor = gl_Color;\n"
+      "}\n";
+   static const char *vertShaderText =
+      "void main() {\n"
+      "   gl_FrontColor = gl_Color;\n"
+      "   gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
+      "}\n";
+   fragShader = glCreateShader(GL_FRAGMENT_SHADER);
+   load_and_compile_shader(fragShader, fragShaderText);
+
+
+   vertShader = glCreateShader(GL_VERTEX_SHADER);
+   if (filename)
+      read_shader(vertShader, filename);
+   else
+      load_and_compile_shader(vertShader, vertShaderText);
+
+   program = glCreateProgram();
+   glAttachShader(program, fragShader);
+   glAttachShader(program, vertShader);
+   glLinkProgram(program);
+   check_link(program);
+   glUseProgram(program);
+
+   setup_uniforms();
+}
+
+static void args(int argc, char *argv[])
+{
+   GLint i;
+
+   for (i = 1; i < argc; i++) {
+      if (strncmp(argv[i], "-n", 2) == 0) {
+	 nr_steps = atoi((argv[i]) + 2);
+      }
+      else if (strcmp(argv[i], "-f") == 0) {
+	 glShadeModel(GL_FLAT);
+      }
+      else if (i == argc - 1) {
+	 filename = argv[i];
+      }
+      else {
+	 usage(argv[0]);
+	 exit(1);
+      }
+   }
+
+   if (!filename) {
+      usage(argv[0]);
+      exit(1);
+   }
+}
+
+
+
+
+union vert {
+   struct {
+      GLfloat color[3];
+      GLfloat pos[3];
+   } v;
+   GLfloat f[6];
+};
+
+static void make_midpoint( union vert *out,
+			   const union vert *v0,
+			   const union vert *v1)
+{
+   int i;
+   for (i = 0; i < 6; i++)
+      out->f[i] = v0->f[i] + .5 * (v1->f[i] - v0->f[i]);
+}
+
+static void subdiv( union vert *v0,
+		    union vert *v1,
+		    union vert *v2,
+		    GLuint depth )
+{
+   if (depth == 0) {
+      glColor3fv(v0->v.color);
+      glVertex3fv(v0->v.pos);
+      glColor3fv(v1->v.color);
+      glVertex3fv(v1->v.pos);
+      glColor3fv(v2->v.color);
+      glVertex3fv(v2->v.pos);
+   }
+   else {
+      union vert m[3];
+
+      make_midpoint(&m[0], v0, v1);
+      make_midpoint(&m[1], v1, v2);
+      make_midpoint(&m[2], v2, v0);
+
+      subdiv(&m[0], &m[2], v0, depth-1);
+      subdiv(&m[1], &m[0], v1, depth-1);
+      subdiv(&m[2], &m[1], v2, depth-1);
+      subdiv(&m[0], &m[1], &m[2], depth-1);
+   }
+}
+
+/** Assignment */
+#define ASSIGN_3V( V, V0, V1, V2 )  \
+do {                                \
+    V[0] = V0;                      \
+    V[1] = V1;                      \
+    V[2] = V2;                      \
+} while(0)
+
+static void Display( void )
+{
+   glClearColor(0.3, 0.3, 0.3, 1);
+   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+   glUseProgram(program);
+
+   glBegin(GL_TRIANGLES);
+
+
+   {
+      union vert v[3];
+
+      ASSIGN_3V(v[0].v.color, 0,0,1);
+      ASSIGN_3V(v[0].v.pos,  0.9, -0.9, 0.0);
+      ASSIGN_3V(v[1].v.color, 1,0,0);
+      ASSIGN_3V(v[1].v.pos, 0.9, 0.9, 0.0);
+      ASSIGN_3V(v[2].v.color, 0,1,0);
+      ASSIGN_3V(v[2].v.pos, -0.9, 0, 0.0);
+
+      subdiv(&v[0], &v[1], &v[2], nr_steps);
+   }
+
+   glEnd();
+
+
+   glFlush();
+}
+
+
+static void Reshape( int width, int height )
+{
+   glViewport( 0, 0, width, height );
+   glMatrixMode( GL_PROJECTION );
+   glLoadIdentity();
+   glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+   glMatrixMode( GL_MODELVIEW );
+   glLoadIdentity();
+   /*glTranslatef( 0.0, 0.0, -15.0 );*/
+}
+
+
+static void CleanUp(void)
+{
+   glDeleteShader(fragShader);
+   glDeleteShader(vertShader);
+   glDeleteProgram(program);
+}
+
+static void Key( unsigned char key, int x, int y )
+{
+   (void) x;
+   (void) y;
+   switch (key) {
+      case 27:
+         CleanUp();
+         exit(0);
+         break;
+   }
+   glutPostRedisplay();
+}
+
+int main( int argc, char *argv[] )
+{
+   glutInit( &argc, argv );
+   glutInitWindowPosition( 0, 0 );
+   glutInitWindowSize( 250, 250 );
+   glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
+   glutCreateWindow(argv[0]);
+   glutReshapeFunc( Reshape );
+   glutKeyboardFunc( Key );
+   glutDisplayFunc( Display );
+   args( argc, argv );
+   prepare_shaders();
+   glutMainLoop();
+   return 0;
+}