glcaps.c
1
2
3
4
5
6
#ifdef _WINDOWS
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
#endif
#include <stdio.h>
7
#define GL_GLEXT_LEGACY 1
8
9
10
11
#include "GL/gl.h"
#include "GL/glext.h"
#include "SDL.h"
12
13
14
15
#ifndef WINGDIAPI
#define WINGDIAPI
#endif
16
typedef WINGDIAPI void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *params);
17
18
typedef WINGDIAPI const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
19
20
21
22
23
24
25
26
27
28
29
30
31
32
#ifndef GL_MAX_VERTEX_BINDABLE_UNIFORMS_EXT
#define GL_MAX_VERTEX_BINDABLE_UNIFORMS_EXT 0x8DE2
#endif
#ifndef GL_MAX_FRAGMENT_BINDABLE_UNIFORMS_EXT
#define GL_MAX_FRAGMENT_BINDABLE_UNIFORMS_EXT 0x8DE3
#endif
#ifndef GL_MAX_GEOMETRY_BINDABLE_UNIFORMS_EXT
#define GL_MAX_GEOMETRY_BINDABLE_UNIFORMS_EXT 0x8DE4
#endif
#ifndef GL_MAX_BINDABLE_UNIFORM_SIZE_EXT
#define GL_MAX_BINDABLE_UNIFORM_SIZE_EXT 0x8DED
#endif
33
34
35
int main(int argc, char **argv)
{
GLint val = 0;
36
const char *str = NULL;
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
SDL_Init(SDL_INIT_VIDEO);
SDL_GL_LoadLibrary(NULL);
SDL_SetVideoMode(640, 480, 0, SDL_OPENGL);
PFNGLGETSTRINGPROC pglGetString = (PFNGLGETSTRINGPROC) SDL_GL_GetProcAddress("glGetString");
PFNGLGETINTEGERVPROC pglGetIntegerv = (PFNGLGETINTEGERVPROC) SDL_GL_GetProcAddress("glGetIntegerv");
PFNGLGETPROGRAMIVARBPROC pglGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC) SDL_GL_GetProcAddress("glGetProgramivARB");
printf("Basic strings...\n\n");
#define getval(x) printf(#x ": %s\n", pglGetString(x))
getval(GL_RENDERER);
getval(GL_VERSION);
getval(GL_VENDOR);
#undef getval
printf("\nExtensions...\n\n");
const GLubyte *ext = pglGetString(GL_EXTENSIONS);
while (*ext)
{
fputc((*ext == ' ') ? '\n' : ((int) *ext), stdout);
ext++;
} // while
ext--;
if (*ext != ' ')
printf("\n");
printf("\nARB1 values...\n\n");
if (pglGetProgramivARB == NULL)
printf(" (unsupported.)\n");
else
{
#define getval(x) \
val = -1; \
pglGetProgramivARB(GL_VERTEX_PROGRAM_ARB, x, &val); \
printf(#x ": %d\n", (int) val);
getval(GL_MAX_PROGRAM_INSTRUCTIONS_ARB);
getval(GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB);
getval(GL_MAX_PROGRAM_TEMPORARIES_ARB);
getval(GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB);
getval(GL_MAX_PROGRAM_PARAMETERS_ARB);
getval(GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB);
getval(GL_MAX_PROGRAM_ATTRIBS_ARB);
getval(GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB);
getval(GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB);
getval(GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB);
getval(GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB);
getval(GL_MAX_PROGRAM_ENV_PARAMETERS_ARB);
getval(GL_MAX_PROGRAM_PARAMETERS_ARB);
#undef getval
} // else
printf("\nGLSL values...\n\n");
#define getval(x) \
val = -1; \
pglGetIntegerv(x, &val); \
printf(#x ": %d\n", (int) val);
104
105
str = (const char *) pglGetString(GL_SHADING_LANGUAGE_VERSION_ARB);
printf("GL_SHADING_LANGUAGE_VERSION_ARB: %s\n", str);
106
107
getval(GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB);
getval(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB);
108
109
110
111
112
113
getval(GL_MAX_VARYING_FLOATS_ARB);
getval(GL_MAX_VERTEX_ATTRIBS_ARB);
getval(GL_MAX_TEXTURE_IMAGE_UNITS_ARB);
getval(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB);
getval(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS_ARB);
getval(GL_MAX_TEXTURE_COORDS_ARB);
115
116
117
118
119
120
121
printf("\nGL_EXT_bindable_uniform values...\n\n");
getval(GL_MAX_VERTEX_BINDABLE_UNIFORMS_EXT);
getval(GL_MAX_FRAGMENT_BINDABLE_UNIFORMS_EXT);
getval(GL_MAX_GEOMETRY_BINDABLE_UNIFORMS_EXT);
getval(GL_MAX_BINDABLE_UNIFORM_SIZE_EXT);
122
123
124
125
126
127
128
#undef getval
SDL_Quit();
printf("\n");
return 0;
}