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.position, vertex.position;\n"
20      "END\n";
21
22   glGenProgramsARB(1, &prognum);
23
24   glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum);
25   glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
26		      strlen(prog1), (const GLubyte *) prog1);
27
28   assert(glIsProgramARB(prognum));
29   errnum = glGetError();
30   printf("glGetError = %d\n", errnum);
31   if (errnum != GL_NO_ERROR)
32   {
33      GLint errorpos;
34
35      glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
36      printf("errorpos: %d\n", errorpos);
37      printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB));
38   }
39}
40
41static void Display( void )
42{
43   glClearColor(0.3, 0.3, 0.3, 1);
44   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
45
46   glEnable(GL_VERTEX_PROGRAM_NV);
47
48#if 0
49   glBegin(GL_LINES);
50   glColor3f(0,0,1);
51   glVertex3f( 0.75, -0.75, 0.0);
52   glColor3f(0,1,0);
53   glVertex3f( 0.75,  0.75, 0.0);
54
55   glColor3f(0,1,0);
56   glVertex3f( 0.75,  0.75, 0.0);
57   glColor3f(1,0,0);
58   glVertex3f(-1.75,  0.0, 0.0);
59   glEnd();
60#else
61   glBegin(GL_LINE_STRIP);
62   glColor3f(0,0,1);
63   glVertex3f( 0.75, -0.75, 0.0);
64   glColor3f(0,1,0);
65   glVertex3f( 0.75,  0.75, 0.0);
66   glColor3f(1,0,0);
67   glVertex3f(-1.75,  0.0, 0.0);
68   glEnd();
69#endif
70
71
72   glFlush();
73}
74
75
76static void Reshape( int width, int height )
77{
78   glViewport( 0, 0, width, height );
79   glMatrixMode( GL_PROJECTION );
80   glLoadIdentity();
81   glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
82   glMatrixMode( GL_MODELVIEW );
83   glLoadIdentity();
84   /*glTranslatef( 0.0, 0.0, -15.0 );*/
85}
86
87
88static void Key( unsigned char key, int x, int y )
89{
90   (void) x;
91   (void) y;
92   switch (key) {
93      case 27:
94         exit(0);
95         break;
96   }
97   glutPostRedisplay();
98}
99
100
101
102
103int main( int argc, char *argv[] )
104{
105   glutInit( &argc, argv );
106   glutInitWindowPosition( 0, 0 );
107   glutInitWindowSize( 250, 250 );
108   glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
109   glutCreateWindow(argv[0]);
110   glewInit();
111   glutReshapeFunc( Reshape );
112   glutKeyboardFunc( Key );
113   glutDisplayFunc( Display );
114   Init();
115   glutMainLoop();
116   return 0;
117}
118