/* Test GL_NV_fragment_program */ #include <assert.h> #include <string.h> #include <stdio.h> #include <stdlib.h> #include <math.h> #define GL_GLEXT_PROTOTYPES #include <GL/glut.h> static void Display( void ) { glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glPushMatrix(); glColor4f(0, 0.5, 0, 1); glBegin(GL_POLYGON); glVertex2f(-1, -1); glVertex2f( 1, -1); glVertex2f( 0, 1); glEnd(); glPopMatrix(); glutSwapBuffers(); } static void Reshape( int width, int height ) { glViewport( 0, 0, width, height ); glMatrixMode( GL_PROJECTION ); glLoadIdentity(); glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 ); glMatrixMode( GL_MODELVIEW ); glLoadIdentity(); glTranslatef( 0.0, 0.0, -15.0 ); } static void Key( unsigned char key, int x, int y ) { (void) x; (void) y; switch (key) { case 27: exit(0); break; } glutPostRedisplay(); } static void Init( void ) { static const char *prog1 = "!!FP1.0\n" "MUL o[COLR], R0, f[WPOS]; \n" "ADD o[COLH], H3, f[TEX0]; \n" "ADD_SAT o[COLH], H3, f[TEX0]; \n" "ADDX o[COLH], H3, f[TEX0]; \n" "ADDHC o[COLH], H3, f[TEX0]; \n" "ADDXC o[COLH], H3, f[TEX0]; \n" "ADDXC_SAT o[COLH], H30, f[TEX0]; \n" "MUL o[COLR].xy, R0.wzyx, f[WPOS]; \n" "MUL o[COLR], H0, f[WPOS]; \n" "MUL o[COLR], -H0, f[WPOS]; \n" "MOV RC, H1; \n" "MOV HC, H2; \n" ; /* masked updates */ static const char *prog2 = "!!FP1.0\n" "DEFINE foo = {1, 2, 3, 4}; \n" "DEFINE foo2 = 5; \n" "DECLARE foo = {5, 6, 7, 8}; \n" "DECLARE bar = 3; \n" "DECLARE bar2; \n" "DECLARE bar3 = bar; \n" "DECLARE bar4 = { a, b, c, d }; \n" "MOV o[COLR], R0; \n" "MOV o[COLR].xy, R0; \n" "MOV o[COLR] (NE), R0; \n" "MOV o[COLR] (NE.wzyx), R0; \n" "MOV o[COLR].xy (NE.wzyx), R0; \n" "KIL NE; \n" "KIL EQ.xyxy; \n" ; /* double the color */ static const char *prog3 = "!!FP1.0\n" "MOV R0, f[COL0]; \n" "ADD o[COLR], R0, f[COL0]; \n" ; GLuint progs[20]; glGenProgramsNV(20, progs); assert(progs[0]); assert(progs[1]); assert(progs[0] != progs[1]); glGenProgramsNV(3, progs + 2); assert(progs[2]); assert(progs[3]); assert(progs[2] != progs[3]); assert(progs[0] != progs[2]); glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[0], strlen(prog1), (const GLubyte *) prog1); assert(glIsProgramNV(progs[0])); glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[1], strlen(prog2), (const GLubyte *) prog2); assert(glIsProgramNV(progs[1])); glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[2], strlen(prog2), (const GLubyte *) prog3); assert(glIsProgramNV(progs[2])); glBindProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[2]); glEnable(GL_FRAGMENT_PROGRAM_NV); glEnable(GL_ALPHA_TEST); glAlphaFunc(GL_ALWAYS, 0.0); printf("glGetError = %d\n", (int) glGetError()); } int main( int argc, char *argv[] ) { glutInit( &argc, argv ); glutInitWindowPosition( 0, 0 ); glutInitWindowSize( 250, 250 ); glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); glutCreateWindow(argv[0]); glutReshapeFunc( Reshape ); glutKeyboardFunc( Key ); glutDisplayFunc( Display ); Init(); glutMainLoop(); return 0; }