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RetroArch/gfx/video_context_driver.c

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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
};
/**
* 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.
**/
static bool gfx_ctl_find_prev_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));
return true;
}
RARCH_WARN("Couldn't find any previous video context driver.\n");
return false;
}
/**
* find_next_context_driver:
*
* Finds next driver in graphics context driver array.
**/
static bool gfx_ctl_find_next_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));
return true;
}
RARCH_WARN("Couldn't find any next video context driver.\n");
return false;
}
/**
* 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);
gfx_ctx_ctl(GFX_CTL_SET_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);
}
bool gfx_ctx_ctl(enum gfx_ctx_ctl_state state, void *data)
{
static const gfx_ctx_driver_t *current_video_context = NULL;
static void *video_context_data = NULL;
switch (state)
{
case GFX_CTL_CHECK_WINDOW:
{
uint64_t *frame_count = NULL;
gfx_ctx_size_t *size_data = (gfx_ctx_size_t*)data;
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,
size_data->quit,
size_data->resize,
size_data->width,
size_data->height, (unsigned int)*frame_count);
}
break;
case GFX_CTL_FIND_PREV_DRIVER:
return gfx_ctl_find_prev_driver();
case GFX_CTL_FIND_NEXT_DRIVER:
return gfx_ctl_find_next_driver();
case GFX_CTL_IMAGE_BUFFER_INIT:
if (!current_video_context || !current_video_context->image_buffer_init)
return false;
return current_video_context->image_buffer_init(video_context_data,
(const video_info_t*)data);
case GFX_CTL_IMAGE_BUFFER_WRITE:
{
gfx_ctx_image_t *img = (gfx_ctx_image_t*)data;
if (!current_video_context || !current_video_context->image_buffer_write)
return false;
return current_video_context->image_buffer_write(video_context_data,
img->frame, img->width, img->height, img->pitch,
img->rgb32, img->index, img->handle);
}
case GFX_CTL_GET_VIDEO_OUTPUT_PREV:
if (!current_video_context
|| !current_video_context->get_video_output_prev)
return false;
current_video_context->get_video_output_prev(video_context_data);
break;
case GFX_CTL_GET_VIDEO_OUTPUT_NEXT:
if (!current_video_context ||
!current_video_context->get_video_output_next)
return false;
current_video_context->get_video_output_next(video_context_data);
break;
case GFX_CTL_BIND_HW_RENDER:
{
bool *enable = (bool*)data;
if (!current_video_context || !current_video_context->bind_hw_render)
return false;
current_video_context->bind_hw_render(video_context_data, *enable);
}
break;
case GFX_CTL_SET:
if (!data)
return false;
current_video_context = (const gfx_ctx_driver_t*)data;
break;
case GFX_CTL_DESTROY:
current_video_context = NULL;
break;
case GFX_CTL_UPDATE_WINDOW_TITLE:
if (!current_video_context || !current_video_context->update_window_title)
return false;
current_video_context->update_window_title(video_context_data);
break;
case GFX_CTL_SWAP_BUFFERS:
if (!current_video_context || !current_video_context->swap_buffers)
return false;
current_video_context->swap_buffers(video_context_data);
break;
case GFX_CTL_FOCUS:
if (!video_context_data || !current_video_context->has_focus)
return false;
return current_video_context->has_focus(video_context_data);
case GFX_CTL_HAS_WINDOWED:
if (!video_context_data)
return false;
return current_video_context->has_windowed(video_context_data);
case GFX_CTL_FREE:
if (current_video_context->destroy)
current_video_context->destroy(video_context_data);
current_video_context = NULL;
video_context_data = NULL;
break;
case GFX_CTL_GET_VIDEO_OUTPUT_SIZE:
{
gfx_ctx_size_t *size_data = (gfx_ctx_size_t*)data;
if (!size_data)
return false;
if (!current_video_context || !current_video_context->get_video_output_size)
return false;
current_video_context->get_video_output_size(video_context_data,
size_data->width, size_data->height);
}
break;
case GFX_CTL_SWAP_INTERVAL:
{
unsigned *interval = (unsigned*)data;
if (!current_video_context || !current_video_context->swap_interval)
return false;
current_video_context->swap_interval(video_context_data, *interval);
}
break;
case GFX_CTL_PROC_ADDRESS_GET:
{
gfx_ctx_proc_address_t *proc = (gfx_ctx_proc_address_t*)data;
if (!current_video_context || !current_video_context->get_proc_address)
return false;
proc->addr = current_video_context->get_proc_address(proc->sym);
}
break;
case GFX_CTL_GET_METRICS:
{
gfx_ctx_metrics_t *metrics = (gfx_ctx_metrics_t*)data;
if (!current_video_context || !current_video_context->get_metrics)
return false;
return current_video_context->get_metrics(video_context_data,
metrics->type,
metrics->value);
}
case GFX_CTL_INPUT_DRIVER:
{
gfx_ctx_input_t *inp = (gfx_ctx_input_t*)data;
if (!current_video_context || !current_video_context->input_driver)
return false;
current_video_context->input_driver(
video_context_data, inp->input, inp->input_data);
}
break;
case GFX_CTL_SUPPRESS_SCREENSAVER:
{
bool *bool_data = (bool*)data;
if (!video_context_data || !current_video_context)
return false;
return current_video_context->suppress_screensaver(
video_context_data, *bool_data);
}
case GFX_CTL_IDENT_GET:
{
gfx_ctx_ident_t *ident = (gfx_ctx_ident_t*)data;
ident->ident = NULL;
if (current_video_context)
ident->ident = current_video_context->ident;
}
break;
case GFX_CTL_SET_VIDEO_MODE:
{
gfx_ctx_mode_t *mode_info = (gfx_ctx_mode_t*)data;
if (!current_video_context || !current_video_context->set_video_mode)
return false;
return current_video_context->set_video_mode(
video_context_data, mode_info->width,
mode_info->height, mode_info->fullscreen);
}
break;
case GFX_CTL_SET_RESIZE:
{
gfx_ctx_mode_t *mode_info = (gfx_ctx_mode_t*)data;
if (!current_video_context)
return false;
return current_video_context->set_resize(
video_context_data, mode_info->width, mode_info->height);
}
case GFX_CTL_GET_VIDEO_SIZE:
{
gfx_ctx_mode_t *mode_info = (gfx_ctx_mode_t*)data;
if (!current_video_context || !current_video_context->get_video_size)
return false;
current_video_context->get_video_size(video_context_data, &mode_info->width, &mode_info->height);
}
break;
case GFX_CTL_SET_VIDEO_CONTEXT_DATA:
video_context_data = data;
break;
case GFX_CTL_NONE:
default:
break;
}
return true;
}
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