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RetroArch/gfx/video_context_driver.c
twinaphex b8b7ee530c Respect 80-char width limits
2016-02-06 21:51:37 +01:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2016 - 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 <string.h>
#include <string/stdstring.h>
#include "video_context_driver.h"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include "../general.h"
#include "../verbosity.h"
static const gfx_ctx_driver_t *gfx_ctx_drivers[] = {
#if defined(__CELLOS_LV2__)
&gfx_ctx_ps3,
#endif
#if defined(HAVE_D3D)
&gfx_ctx_d3d,
#endif
#if defined(HAVE_VIDEOCORE)
&gfx_ctx_videocore,
#endif
#if defined(HAVE_MALI_FBDEV)
&gfx_ctx_mali_fbdev,
#endif
#if defined(HAVE_VIVANTE_FBDEV)
&gfx_ctx_vivante_fbdev,
#endif
#if defined(_WIN32) && defined(HAVE_OPENGL)
&gfx_ctx_wgl,
#endif
#if defined(HAVE_X11) && defined(HAVE_OPENGL) && !defined(HAVE_OPENGLES)
&gfx_ctx_glx,
#endif
#if defined(HAVE_WAYLAND) && defined(HAVE_OPENGL) && defined(HAVE_EGL)
&gfx_ctx_wayland,
#endif
#if defined(HAVE_X11) && defined(HAVE_OPENGL) && defined(HAVE_EGL)
&gfx_ctx_x_egl,
#endif
#if defined(HAVE_KMS)
&gfx_ctx_drm_egl,
#endif
#if defined(ANDROID)
&gfx_ctx_android,
#endif
#if defined(__QNX__)
&gfx_ctx_bbqnx,
#endif
#if defined(HAVE_COCOA) || defined(HAVE_COCOATOUCH)
&gfx_ctx_cocoagl,
#endif
#if defined(__APPLE__) && !defined(TARGET_IPHONE_SIMULATOR) && !defined(TARGET_OS_IPHONE)
&gfx_ctx_cgl,
#endif
#if (defined(HAVE_SDL) || defined(HAVE_SDL2)) && defined(HAVE_OPENGL)
&gfx_ctx_sdl_gl,
#endif
#ifdef EMSCRIPTEN
&gfx_ctx_emscripten,
#endif
&gfx_ctx_null,
NULL
};
static const gfx_ctx_driver_t *current_video_context;
static void *video_context_data;
void gfx_ctx_set(const gfx_ctx_driver_t *ctx_driver)
{
if (!ctx_driver)
return;
current_video_context = ctx_driver;
}
void gfx_ctx_destroy(const gfx_ctx_driver_t *ctx_driver)
{
current_video_context = NULL;
}
void gfx_ctx_free(void)
{
if (current_video_context->destroy)
current_video_context->destroy(video_context_data);
current_video_context = NULL;
video_context_data = NULL;
}
const char *gfx_ctx_get_ident(void)
{
const gfx_ctx_driver_t *ctx = current_video_context;
if (!ctx)
return NULL;
return ctx->ident;
}
void gfx_ctx_update_window_title(void)
{
if (current_video_context->update_window_title)
current_video_context->update_window_title(video_context_data);
}
void gfx_ctx_get_video_output_size(
unsigned *width, unsigned *height)
{
const gfx_ctx_driver_t *ctx = current_video_context;
if (ctx->get_video_output_size)
ctx->get_video_output_size(video_context_data, width, height);
}
bool gfx_ctx_get_video_output_prev(void)
{
if (current_video_context->get_video_output_prev)
{
current_video_context->get_video_output_prev(video_context_data);
return true;
}
return false;
}
bool gfx_ctx_get_video_output_next(void)
{
if (current_video_context->get_video_output_next)
{
current_video_context->get_video_output_next(video_context_data);
return true;
}
return false;
}
void gfx_ctx_swap_buffers(void)
{
if (!current_video_context)
return;
if (current_video_context->swap_buffers)
current_video_context->swap_buffers(video_context_data);
}
void gfx_ctx_bind_hw_render(bool enable)
{
if (current_video_context->bind_hw_render)
current_video_context->bind_hw_render(video_context_data, enable);
}
bool gfx_ctx_focus(void)
{
if (video_context_data && current_video_context->has_focus)
return current_video_context->has_focus(video_context_data);
return false;
}
bool gfx_ctx_set_video_mode(
unsigned width, unsigned height,
bool fullscreen)
{
if (current_video_context->set_video_mode)
return current_video_context->set_video_mode(
video_context_data, width, height, fullscreen);
return false;
}
void gfx_ctx_translate_aspect(float *aspect,
unsigned width, unsigned height)
{
if (!current_video_context || !current_video_context->translate_aspect)
return;
*aspect = current_video_context->translate_aspect(
video_context_data, width, height);
}
bool gfx_ctx_get_metrics(enum display_metric_types type, float *value)
{
if (!current_video_context || !current_video_context->get_metrics)
return false;
return current_video_context->get_metrics(video_context_data, type,
value);
}
bool gfx_ctx_image_buffer_init(const video_info_t* info)
{
const gfx_ctx_driver_t *ctx = current_video_context;
if (ctx->image_buffer_init)
return ctx->image_buffer_init(video_context_data, info);
return false;
}
bool gfx_ctx_image_buffer_write(const void *frame, unsigned width,
unsigned height, unsigned pitch, bool rgb32,
unsigned index, void **image_handle)
{
const gfx_ctx_driver_t *ctx = current_video_context;
if (ctx->image_buffer_write)
return ctx->image_buffer_write(video_context_data,
frame, width, height, pitch,
rgb32, index, image_handle);
return false;
}
retro_proc_address_t gfx_ctx_get_proc_address(const char *sym)
{
return current_video_context->get_proc_address(sym);
}
void gfx_ctx_show_mouse(bool state)
{
if (video_context_data && current_video_context->show_mouse)
current_video_context->show_mouse(video_context_data, state);
}
bool gfx_ctx_has_windowed(void)
{
if (video_context_data)
return current_video_context->has_windowed(video_context_data);
return true;
}
bool gfx_ctx_check_window(bool *quit, bool *resize,
unsigned *width, unsigned *height)
{
uint64_t *frame_count;
video_driver_ctl(RARCH_DISPLAY_CTL_GET_FRAME_COUNT, &frame_count);
if (!video_context_data)
return false;
current_video_context->check_window(video_context_data, quit,
resize, width, height, (unsigned int)*frame_count);
return true;
}
bool gfx_ctx_suppress_screensaver(bool enable)
{
if (video_context_data && current_video_context)
return current_video_context->suppress_screensaver(
video_context_data, enable);
return false;
}
void gfx_ctx_get_video_size(
unsigned *width, unsigned *height)
{
current_video_context->get_video_size(video_context_data, width, height);
}
void gfx_ctx_swap_interval(unsigned interval)
{
if (current_video_context)
current_video_context->swap_interval(video_context_data, interval);
}
bool gfx_ctx_set_resize(unsigned width, unsigned height)
{
if (!current_video_context)
return false;
return current_video_context->set_resize(
video_context_data, width, height);
}
void gfx_ctx_input_driver(
const input_driver_t **input, void **input_data)
{
if (current_video_context)
current_video_context->input_driver(
video_context_data, input, input_data);
}
/**
* find_gfx_ctx_driver_index:
* @ident : Identifier of resampler driver to find.
*
* Finds graphics context driver index by @ident name.
*
* Returns: graphics context driver index if driver was found, otherwise
* -1.
**/
static int find_gfx_ctx_driver_index(const char *ident)
{
unsigned i;
for (i = 0; gfx_ctx_drivers[i]; i++)
if (string_is_equal_noncase(ident, gfx_ctx_drivers[i]->ident))
return i;
return -1;
}
/**
* find_prev_context_driver:
*
* Finds previous driver in graphics context driver array.
**/
void find_prev_gfx_context_driver(void)
{
settings_t *settings = config_get_ptr();
int i = find_gfx_ctx_driver_index(settings->video.context_driver);
if (i > 0)
{
strlcpy(settings->video.context_driver, gfx_ctx_drivers[i - 1]->ident,
sizeof(settings->video.context_driver));
}
else
RARCH_WARN("Couldn't find any previous video context driver.\n");
}
/**
* find_next_context_driver:
*
* Finds next driver in graphics context driver array.
**/
void find_next_context_driver(void)
{
settings_t *settings = config_get_ptr();
int i = find_gfx_ctx_driver_index(settings->video.context_driver);
if (i >= 0 && gfx_ctx_drivers[i + 1])
{
strlcpy(settings->video.context_driver, gfx_ctx_drivers[i + 1]->ident,
sizeof(settings->video.context_driver));
}
else
RARCH_WARN("Couldn't find any next video context driver.\n");
}
/**
* gfx_ctx_init:
* @data : Input data.
* @ctx : Graphics context driver to initialize.
* @ident : Identifier of graphics context driver to find.
* @api : API of higher-level graphics API.
* @major : Major version number of higher-level graphics API.
* @minor : Minor version number of higher-level graphics API.
* @hw_render_ctx : Request a graphics context driver capable of
* hardware rendering?
*
* Initialize graphics context driver.
*
* Returns: graphics context driver if successfully initialized, otherwise NULL.
**/
static const gfx_ctx_driver_t *gfx_ctx_init(void *data,
const gfx_ctx_driver_t *ctx,
const char *ident,
enum gfx_ctx_api api, unsigned major,
unsigned minor, bool hw_render_ctx)
{
settings_t *settings = config_get_ptr();
if (ctx->bind_api(data, api, major, minor))
{
void *ctx_data = ctx->init(data);
if (!ctx_data)
return NULL;
if (ctx->bind_hw_render)
ctx->bind_hw_render(ctx_data,
settings->video.shared_context && hw_render_ctx);
video_context_data = ctx_data;
return ctx;
}
#ifndef _WIN32
RARCH_WARN("Failed to bind API (#%u, version %u.%u) on context driver \"%s\".\n",
(unsigned)api, major, minor, ctx->ident);
#endif
return NULL;
}
/**
* gfx_ctx_find_driver:
* @data : Input data.
* @ident : Identifier of graphics context driver to find.
* @api : API of higher-level graphics API.
* @major : Major version number of higher-level graphics API.
* @minor : Minor version number of higher-level graphics API.
* @hw_render_ctx : Request a graphics context driver capable of
* hardware rendering?
*
* Finds graphics context driver and initializes.
*
* Returns: graphics context driver if found, otherwise NULL.
**/
static const gfx_ctx_driver_t *gfx_ctx_find_driver(void *data,
const char *ident,
enum gfx_ctx_api api, unsigned major,
unsigned minor, bool hw_render_ctx)
{
int i = find_gfx_ctx_driver_index(ident);
if (i >= 0)
return gfx_ctx_init(data, gfx_ctx_drivers[i], ident,
api, major, minor, hw_render_ctx);
for (i = 0; gfx_ctx_drivers[i]; i++)
{
const gfx_ctx_driver_t *ctx =
gfx_ctx_init(data, gfx_ctx_drivers[i], ident,
api, major, minor, hw_render_ctx);
if (ctx)
return ctx;
}
return NULL;
}
/**
* gfx_ctx_init_first:
* @data : Input data.
* @ident : Identifier of graphics context driver to find.
* @api : API of higher-level graphics API.
* @major : Major version number of higher-level graphics API.
* @minor : Minor version number of higher-level graphics API.
* @hw_render_ctx : Request a graphics context driver capable of
* hardware rendering?
*
* Finds first suitable graphics context driver and initializes.
*
* Returns: graphics context driver if found, otherwise NULL.
**/
const gfx_ctx_driver_t *gfx_ctx_init_first(void *data,
const char *ident, enum gfx_ctx_api api, unsigned major,
unsigned minor, bool hw_render_ctx)
{
return gfx_ctx_find_driver(data, ident, api,
major, minor, hw_render_ctx);
}
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