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glcaps.c
103 lines (79 loc) · 2.85 KB
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glcaps.c
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#ifdef _WINDOWS
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
#endif
#include <stdio.h>
#define GL_GLEXT_PROTOTYPES 1
#include "GL/gl.h"
#include "GL/glext.h"
#include "SDL.h"
typedef WINGDIAPI const GLubyte * (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *params);
typedef WINGDIAPI const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
int main(int argc, char **argv)
{
GLint val = 0;
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);
getval(GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB);
getval(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS_ARB);
getval(GL_MAX_VERTEX_UNIFORM_COMPONENTS_ARB);
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);
#undef getval
SDL_Quit();
printf("\n");
return 0;
}