1/* Test glGenProgramsNV(), glIsProgramNV(), glLoadProgramNV() */
2
3#include <assert.h>
4#include <string.h>
5#include <stdio.h>
6#include <stdlib.h>
7#include <math.h>
8#include <GL/glew.h>
9#include "glut_wrap.h"
10
11static void Init( void )
12{
13   GLint errnum;
14   GLuint prognum;
15
16   static const char *prog1 =
17      "!!ARBvp1.0\n"
18      "MOV  result.color, vertex.color;\n"
19/*       "MOV  result.color, {0,0,0,1};\n"  */
20      "MOV  result.position, vertex.position;\n"
21      "END\n";
22
23
24   glGenProgramsARB(1, &prognum);
25
26   glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum);
27   glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
28		      strlen(prog1), (const GLubyte *) prog1);
29
30   assert(glIsProgramARB(prognum));
31   errnum = glGetError();
32   printf("glGetError = %d\n", errnum);
33   if (errnum != GL_NO_ERROR)
34   {
35      GLint errorpos;
36
37      glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
38      printf("errorpos: %d\n", errorpos);
39      printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB));
40   }
41}
42
43static void Display( void )
44{
45   glClearColor(0.3, 0.3, 0.3, 1);
46   glClear( GL_COLOR_BUFFER_BIT );
47
48   glEnable(GL_VERTEX_PROGRAM_NV);
49
50   glBegin(GL_TRIANGLES);
51   glColor3f(0,0,.7);
52   glVertex3f( 0.9, -0.9, -0.0);
53   glColor3f(.8,0,0);
54   glVertex3f( 0.9,  0.9, -0.0);
55   glColor3f(0,.9,0);
56   glVertex3f(-0.9,  0.0, -0.0);
57   glEnd();
58
59
60   glutSwapBuffers();
61}
62
63
64static void Reshape( int width, int height )
65{
66   glViewport( 0, 0, width, height );
67   glMatrixMode( GL_PROJECTION );
68   glLoadIdentity();
69   glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
70   glMatrixMode( GL_MODELVIEW );
71   glLoadIdentity();
72   /*glTranslatef( 0.0, 0.0, -15.0 );*/
73}
74
75
76static void Key( unsigned char key, int x, int y )
77{
78   (void) x;
79   (void) y;
80   switch (key) {
81      case 27:
82         exit(0);
83         break;
84   }
85   glutPostRedisplay();
86}
87
88
89
90
91int main( int argc, char *argv[] )
92{
93   glutInit( &argc, argv );
94   glutInitWindowPosition( 0, 0 );
95   glutInitWindowSize( 250, 250 );
96   glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
97   glutCreateWindow(argv[0]);
98   glewInit();
99   glutReshapeFunc( Reshape );
100   glutKeyboardFunc( Key );
101   glutDisplayFunc( Display );
102   Init();
103   glutMainLoop();
104   return 0;
105}
106