RetroArch/gfx/shader/shader_context.c

/*  RetroArch - A frontend for libretro.
 *  Copyright (C) 2011-2015 - Daniel De Matteis
 * 
 *  RetroArch is free software: you can redistribute it and/or modify it under the terms
 *  of the GNU General Public License as published by the Free Software Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 *  PURPOSE.  See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with RetroArch.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#include "shader_context.h"
#include "../../retroarch_logger.h"
#include <string.h>

#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif

static const shader_backend_t *shader_ctx_drivers[] = {
#ifdef HAVE_CG
   &gl_cg_backend,
#endif
#ifdef HAVE_GLSL
   &gl_glsl_backend,
#endif
#ifdef HAVE_HLSL
   &hlsl_backend,
#endif
   &shader_null_backend,
   NULL
};

const shader_backend_t *shader_ctx_find_driver(const char *ident)
{
   unsigned i;

   for (i = 0; shader_ctx_drivers[i]; i++)
   {
      if (strcmp(shader_ctx_drivers[i]->ident, ident) == 0)
         return shader_ctx_drivers[i];
   }

   return NULL;
}

const shader_backend_t *shader_ctx_init_first(void)
{
   unsigned i;

   for (i = 0; shader_ctx_drivers[i]; i++)
      return shader_ctx_drivers[i];

   return NULL;
}