/* Test glGenProgramsNV(), glIsProgramNV(), glLoadProgramNV() */ #include <stdio.h> #include <string.h> #include <stdlib.h> #include <math.h> #include <GL/glew.h> #include "glut_wrap.h" #define CI_OFFSET_1 16 #define CI_OFFSET_2 32 GLenum doubleBuffer; static void Init(void) { GLint errnum; GLuint prognum; static const char *prog1 = "!!ARBvp1.0\n" "OPTION ARB_position_invariant ;" "MOV result.color, vertex.color;\n" "END\n"; glGenProgramsARB(1, &prognum); glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum); glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(prog1), (const GLubyte *) prog1); errnum = glGetError(); printf("glGetError = %d\n", errnum); if (errnum != GL_NO_ERROR) { GLint errorpos; glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos); printf("errorpos: %d\n", errorpos); printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)); } fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); fflush(stderr); glClearColor(0.0, 0.0, 1.0, 0.0); } static void Reshape(int width, int height) { glViewport(0, 0, (GLint)width, (GLint)height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); /* glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */ glMatrixMode(GL_MODELVIEW); } static void Key(unsigned char key, int x, int y) { switch (key) { case 27: exit(1); default: break; } glutPostRedisplay(); } static void Draw(void) { glClear(GL_COLOR_BUFFER_BIT); glEnable(GL_VERTEX_PROGRAM_ARB); glBegin(GL_TRIANGLES); glColor3f(0,0,.7); glVertex3f( 0.9, -0.9, -0.0); glColor3f(.8,0,0); glVertex3f( 0.9, 0.9, -0.0); glColor3f(0,.9,0); glVertex3f(-0.9, 0.0, -0.0); glEnd(); glFlush(); if (doubleBuffer) { glutSwapBuffers(); } } static GLenum Args(int argc, char **argv) { GLint i; doubleBuffer = GL_FALSE; for (i = 1; i < argc; i++) { if (strcmp(argv[i], "-sb") == 0) { doubleBuffer = GL_FALSE; } else if (strcmp(argv[i], "-db") == 0) { doubleBuffer = GL_TRUE; } else { fprintf(stderr, "%s (Bad option).\n", argv[i]); return GL_FALSE; } } return GL_TRUE; } int main(int argc, char **argv) { GLenum type; glutInit(&argc, argv); if (Args(argc, argv) == GL_FALSE) { exit(1); } glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250); type = GLUT_RGB | GLUT_ALPHA; type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; glutInitDisplayMode(type); if (glutCreateWindow(*argv) == GL_FALSE) { exit(1); } glewInit(); Init(); glutReshapeFunc(Reshape); glutKeyboardFunc(Key); glutDisplayFunc(Draw); glutMainLoop(); return 0; }