1/* Test rebasing */
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
11struct {
12   GLubyte color[4];
13   GLfloat vert[3];
14} verts[] = {
15
16   { { 0x00, 0x00, 0xff, 0x00 },
17     {  0.9, -0.9, 0.0 } },
18
19   { { 0x00, 0xff, 0x00, 0x00 },
20     {  0.9,  0.9, 0.0 } },
21
22   { { 0xff, 0x00, 0x00, 0x00 },
23     { -0.9,  0.9, 0.0 } },
24
25   { { 0xff, 0xff, 0xff, 0x00 },
26     { -0.9, -0.9, 0.0 } },
27};
28
29GLuint indices[] = { 1, 2, 3 };
30
31static void Init( void )
32{
33   GLint errnum;
34   GLuint prognum;
35
36   static const char *prog1 =
37      "!!ARBvp1.0\n"
38      "MOV  result.color, vertex.color;\n"
39      "MOV  result.position, vertex.position;\n"
40      "END\n";
41
42   glGenProgramsARB(1, &prognum);
43   glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum);
44   glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
45		      strlen(prog1), (const GLubyte *) prog1);
46
47   assert(glIsProgramARB(prognum));
48   errnum = glGetError();
49   printf("glGetError = %d\n", errnum);
50   if (errnum != GL_NO_ERROR)
51   {
52      GLint errorpos;
53
54      glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
55      printf("errorpos: %d\n", errorpos);
56      printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB));
57   }
58
59   glInterleavedArrays( GL_C4UB_V3F, sizeof(verts[0]), verts );
60}
61
62
63
64static void Display( void )
65{
66   glClearColor(0.3, 0.3, 0.3, 1);
67   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
68
69   glEnable(GL_VERTEX_PROGRAM_NV);
70
71   /* Should have min_index == 1, maybe force a rebase:
72    */
73   glDrawElements( GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices );
74
75   glFlush();
76}
77
78
79static void Reshape( int width, int height )
80{
81   glViewport( 0, 0, width, height );
82   glMatrixMode( GL_PROJECTION );
83   glLoadIdentity();
84   glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
85   glMatrixMode( GL_MODELVIEW );
86   glLoadIdentity();
87   /*glTranslatef( 0.0, 0.0, -15.0 );*/
88}
89
90
91static void Key( unsigned char key, int x, int y )
92{
93   (void) x;
94   (void) y;
95   switch (key) {
96      case 27:
97         exit(0);
98         break;
99   }
100   glutPostRedisplay();
101}
102
103
104
105
106int main( int argc, char *argv[] )
107{
108   glutInit( &argc, argv );
109   glutInitWindowPosition( 0, 0 );
110   glutInitWindowSize( 250, 250 );
111   glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
112   glutCreateWindow(argv[0]);
113   glewInit();
114   glutReshapeFunc( Reshape );
115   glutKeyboardFunc( Key );
116   glutDisplayFunc( Display );
117   Init();
118   glutMainLoop();
119   return 0;
120}
121