RetroArch/gfx/video_shader_driver.h
2015-10-25 20:40:47 +01:00

122 lines
3.5 KiB
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/>.
*/
#ifndef VIDEO_SHADER_DRIVER_H__
#define VIDEO_SHADER_DRIVER_H__
#include <boolean.h>
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include "video_context_driver.h"
#include <gfx/math/matrix_4x4.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct shader_backend
{
bool (*init)(void *data, const char *path);
void (*deinit)(void);
void (*set_params)(void *data, unsigned width, unsigned height,
unsigned tex_width, unsigned tex_height,
unsigned out_width, unsigned out_height,
unsigned frame_counter,
const void *info,
const void *prev_info,
const void *feedback_info,
const void *fbo_info, unsigned fbo_info_cnt);
void (*use)(void *data, unsigned index);
unsigned (*num_shaders)(void);
bool (*filter_type)(unsigned index, bool *smooth);
enum gfx_wrap_type (*wrap_type)(unsigned index);
void (*shader_scale)(unsigned index, struct gfx_fbo_scale *scale);
bool (*set_coords)(const void *data);
bool (*set_mvp)(void *data, const math_matrix_4x4 *mat);
unsigned (*get_prev_textures)(void);
bool (*get_feedback_pass)(unsigned *pass);
bool (*mipmap_input)(unsigned index);
struct video_shader *(*get_current_shader)(void);
enum rarch_shader_type type;
/* Human readable string. */
const char *ident;
} shader_backend_t;
extern const shader_backend_t gl_glsl_backend;
extern const shader_backend_t hlsl_backend;
extern const shader_backend_t gl_cg_backend;
extern const shader_backend_t shader_null_backend;
#if defined(_XBOX360)
#define DEFAULT_SHADER_TYPE RARCH_SHADER_HLSL
#elif defined(__PSL1GHT__)
#define DEFAULT_SHADER_TYPE RARCH_SHADER_GLSL
#elif defined(__CELLOS_LV2__)
#define DEFAULT_SHADER_TYPE RARCH_SHADER_CG
#elif defined(HAVE_OPENGLES2)
#define DEFAULT_SHADER_TYPE RARCH_SHADER_GLSL
#else
#define DEFAULT_SHADER_TYPE RARCH_SHADER_NONE
#endif
#if defined(HAVE_CG) || defined(HAVE_HLSL) || defined(HAVE_GLSL)
#ifndef HAVE_SHADER_MANAGER
#define HAVE_SHADER_MANAGER
#endif
#include "video_shader_parse.h"
#define GL_SHADER_STOCK_BLEND (GFX_MAX_SHADERS - 1)
#endif
void video_shader_scale(unsigned idx,
const shader_backend_t *shader, struct gfx_fbo_scale *scale);
/**
* shader_ctx_find_driver:
* @ident : Identifier of shader context driver to find.
*
* Finds shader context driver and initializes.
*
* Returns: shader context driver if found, otherwise NULL.
**/
const shader_backend_t *shader_ctx_find_driver(const char *ident);
/**
* shader_ctx_init_first:
*
* Finds first suitable shader context driver and initializes.
*
* Returns: shader context driver if found, otherwise NULL.
**/
const shader_backend_t *shader_ctx_init_first(void);
struct video_shader *video_shader_driver_get_current_shader(void);
#ifdef __cplusplus
}
#endif
#endif