/**

 * 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 ...