RetroArch/gfx/gfx_context.h

144 lines
4.9 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
*
* 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 __GFX_CONTEXT_H
#define __GFX_CONTEXT_H
#include "../boolean.h"
#include "../driver.h"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#if defined(RARCH_CONSOLE) || defined(HAVE_RMENU)
#include "../console/rmenu/rmenu.h"
#endif
#define MAX_EGLIMAGE_TEXTURES 32
enum gfx_ctx_api
{
GFX_CTX_OPENGL_API,
GFX_CTX_OPENGL_ES_API,
GFX_CTX_DIRECT3D8_API,
GFX_CTX_DIRECT3D9_API,
GFX_CTX_OPENVG_API
};
typedef struct rarch_position
{
float x;
float y;
float width;
float height;
} rarch_position_t;
typedef void (*gfx_ctx_proc_t)(void);
typedef struct gfx_ctx_driver
{
bool (*init)(void);
void (*destroy)(void);
bool (*bind_api)(enum gfx_ctx_api); // Which API to bind to.
// Sets the swap interval.
void (*swap_interval)(unsigned);
// Sets video mode. Creates a window, etc.
bool (*set_video_mode)(unsigned, unsigned, bool);
// Gets current window size.
// If not initialized yet, it returns current screen size.
void (*get_video_size)(unsigned*, unsigned*);
// Translates a window size to an aspect ratio.
// In most cases this will be just width / height, but
// some contexts will better know which actual aspect ratio is used.
// This can be NULL to assume the default behavior.
float (*translate_aspect)(unsigned, unsigned);
// Asks driver to update window title (FPS, etc).
void (*update_window_title)(bool);
// Queries for resize and quit events.
// Also processes events.
void (*check_window)(bool*, bool*, unsigned*, unsigned*, unsigned);
// Acknowledge a resize event. This is needed for some APIs. Most backends will ignore this.
void (*set_resize)(unsigned, unsigned);
// Checks if window has input focus.
bool (*has_focus)(void);
// Swaps buffers. VBlank sync depends on earlier calls to swap_interval.
void (*swap_buffers)(void);
// Most video backends will want to use a certain input driver.
// Checks for it here.
void (*input_driver)(const input_driver_t**, void**);
// Wraps whatever gl_proc_address() there is.
gfx_ctx_proc_t (*get_proc_address)(const char*);
// Returns true if this context supports EGLImage buffers for screen drawing and was initalized correctly.
bool (*init_egl_image_buffer)(const video_info_t*);
// Writes the frame to the EGLImage and sets image_handle to it. Returns true if a new image handle is created.
// Always returns true the first time it's called for a new index. The graphics core must handle a change in the handle correctly.
bool (*write_egl_image)(const void *frame, unsigned width, unsigned height, unsigned pitch, bool rgb32, unsigned index, void **image_handle);
// Human readable string.
const char *ident;
#if defined(HAVE_RMENU) || defined(_XBOX360)
void (*clear)(void);
void (*set_blend)(bool enable);
void (*set_filtering)(unsigned index, bool set_smooth);
void (*get_available_resolutions)(void);
int (*check_resolution)(unsigned resolution_id);
void (*set_fbo)(unsigned);
bool (*rmenu_init)(void);
void (*rmenu_frame)(void *data);
void (*rmenu_free)(void);
void (*rmenu_enable)(bool enable);
void (*rmenu_draw_bg)(rarch_position_t *position);
void (*rmenu_draw_panel)(rarch_position_t *position);
void (*rmenu_set_default_pos)(rmenu_default_positions_t *position);
void (*rmenu_render_msg)(float xpos, float ypos, float scale, unsigned color, const char *msg, ...);
void (*rmenu_screenshot_enable)(bool enable);
void (*rmenu_screenshot_dump)(void *data);
const char *(*drive_mapping_previous)(void);
const char *(*drive_mapping_next)(void);
#endif
} gfx_ctx_driver_t;
extern const gfx_ctx_driver_t gfx_ctx_sdl_gl;
extern const gfx_ctx_driver_t gfx_ctx_x_egl;
extern const gfx_ctx_driver_t gfx_ctx_glx;
extern const gfx_ctx_driver_t gfx_ctx_drm_egl;
extern const gfx_ctx_driver_t gfx_ctx_android;
extern const gfx_ctx_driver_t gfx_ctx_ps3;
extern const gfx_ctx_driver_t gfx_ctx_xdk;
extern const gfx_ctx_driver_t gfx_ctx_wgl;
extern const gfx_ctx_driver_t gfx_ctx_videocore;
const gfx_ctx_driver_t *gfx_ctx_find_driver(const char *ident); // Finds driver with ident. Does not initialize.
const gfx_ctx_driver_t *gfx_ctx_init_first(enum gfx_ctx_api api); // Finds first suitable driver and initializes.
#endif