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bestprofile.c
59 lines (51 loc) · 1.79 KB
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bestprofile.c
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/**
* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
#include <stdio.h>
#include "mojoshader.h"
#include "SDL.h"
static void *lookup(const char *fnname, void *unused)
{
(void) unused;
return SDL_GL_GetProcAddress(fnname);
} // lookup
int main(int argc, char **argv)
{
int retval = 1;
#if 0
printf("MojoShader bestprofile\n");
printf("Compiled against changeset %s\n", MOJOSHADER_CHANGESET);
printf("Linked against changeset %s\n", MOJOSHADER_changeset());
printf("\n");
#endif
SDL_Window *sdlwindow = NULL;
if (SDL_Init(SDL_INIT_VIDEO) == -1)
fprintf(stderr, "SDL_Init() error: %s\n", SDL_GetError());
else if (SDL_GL_LoadLibrary(NULL) == -1)
fprintf(stderr, "SDL_GL_LoadLibrary() error: %s\n", SDL_GetError());
else if ((sdlwindow = SDL_CreateWindow(argv[0], SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_OPENGL)) == NULL)
fprintf(stderr, "SDL_CreateWindow() error: %s\n", SDL_GetError());
else if (SDL_GL_CreateContext(sdlwindow) == NULL)
fprintf(stderr, "SDL_GL_CreateContext() error: %s\n", SDL_GetError());
else
{
const char *best = MOJOSHADER_glBestProfile(lookup, NULL, NULL, NULL, NULL);
MOJOSHADER_glContext *ctx = MOJOSHADER_glCreateContext(best, lookup, 0, 0, 0, 0);
if (ctx == NULL)
printf("MOJOSHADER_glCreateContext() fail: %s\n", MOJOSHADER_glGetError());
else
{
printf("%s\n", best);
retval = 0; // success.
MOJOSHADER_glDestroyContext(ctx);
} // else
} // else
SDL_Quit();
return retval;
} // main
// end of bestprofile.c ...