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
11GLfloat verts[][4] = {
12   {  0.9, -0.9, 0.0, 1.0 },
13   {  0.9,  0.9, 0.0, 1.0 },
14   { -0.9,  0.9, 0.0, 1.0 },
15   { -0.9, -0.9, 0.0, 1.0 },
16};
17
18GLubyte color[][4] = {
19   { 0x00, 0x00, 0xff, 0x00 },
20   { 0x00, 0xff, 0x00, 0x00 },
21   { 0xff, 0x00, 0x00, 0x00 },
22   { 0xff, 0xff, 0xff, 0x00 },
23};
24
25GLuint indices[] = { 1, 2, 3 };
26
27static void Init( void )
28{
29   GLint errnum;
30   GLuint prognum;
31
32   static const char *prog1 =
33      "!!ARBvp1.0\n"
34      "MOV  result.color, vertex.color;\n"
35      "MOV  result.position, vertex.position;\n"
36      "END\n";
37
38   glGenProgramsARB(1, &prognum);
39   glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum);
40   glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
41		      strlen(prog1), (const GLubyte *) prog1);
42
43   assert(glIsProgramARB(prognum));
44   errnum = glGetError();
45   printf("glGetError = %d\n", errnum);
46   if (errnum != GL_NO_ERROR)
47   {
48      GLint errorpos;
49
50      glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
51      printf("errorpos: %d\n", errorpos);
52      printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB));
53   }
54
55
56   glEnableClientState( GL_VERTEX_ARRAY );
57   glEnableClientState( GL_COLOR_ARRAY );
58   glVertexPointer( 3, GL_FLOAT, sizeof(verts[0]), verts );
59   glColorPointer( 4, GL_UNSIGNED_BYTE, 0, color );
60
61}
62
63
64
65static void Display( void )
66{
67   glClearColor(0.3, 0.3, 0.3, 1);
68   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
69
70   glEnable(GL_VERTEX_PROGRAM_NV);
71
72   /* Should have min_index == 1, maybe force a rebase:
73    */
74   glDrawElements( GL_LINE_LOOP, 3, GL_UNSIGNED_INT, indices );
75
76   glFlush();
77}
78
79
80static void Reshape( int width, int height )
81{
82   glViewport( 0, 0, width, height );
83   glMatrixMode( GL_PROJECTION );
84   glLoadIdentity();
85   glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
86   glMatrixMode( GL_MODELVIEW );
87   glLoadIdentity();
88   /*glTranslatef( 0.0, 0.0, -15.0 );*/
89}
90
91
92static void Key( unsigned char key, int x, int y )
93{
94   (void) x;
95   (void) y;
96   switch (key) {
97      case 27:
98         exit(0);
99         break;
100   }
101   glutPostRedisplay();
102}
103
104
105
106
107int main( int argc, char *argv[] )
108{
109   glutInit( &argc, argv );
110   glutInitWindowPosition( 0, 0 );
111   glutInitWindowSize( 250, 250 );
112   glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
113   glutCreateWindow(argv[0]);
114   glewInit();
115   glutReshapeFunc( Reshape );
116   glutKeyboardFunc( Key );
117   glutDisplayFunc( Display );
118   Init();
119   glutMainLoop();
120   return 0;
121}
122