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81ca20c9b5
RetroArch/gfx/video_driver.c
twinaphex 81ca20c9b5 Create wrapper function for 'is video alive'
2015-02-10 16:54:08 +01:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* 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 <string.h>
#include <string/string_list.h>
#include "video_driver.h"
#include "video_thread_wrapper.h"
#include "video_pixel_converter.h"
#include "video_viewport.h"
#include "video_monitor.h"
#include "../general.h"
#include "../retroarch.h"
static const video_driver_t *video_drivers[] = {
#ifdef HAVE_OPENGL
&video_gl,
#endif
#ifdef XENON
&video_xenon360,
#endif
#if defined(_XBOX) && (defined(HAVE_D3D8) || defined(HAVE_D3D9)) || defined(HAVE_WIN32_D3D9)
&video_d3d,
#endif
#ifdef SN_TARGET_PSP2
&video_vita,
#endif
#ifdef PSP
&video_psp1,
#endif
#ifdef HAVE_SDL
&video_sdl,
#endif
#ifdef HAVE_SDL2
&video_sdl2,
#endif
#ifdef HAVE_XVIDEO
&video_xvideo,
#endif
#ifdef GEKKO
&video_gx,
#endif
#ifdef HAVE_VG
&video_vg,
#endif
#ifdef HAVE_OMAP
&video_omap,
#endif
#ifdef HAVE_EXYNOS
&video_exynos,
#endif
&video_null,
NULL,
};
/**
* video_driver_find_handle:
* @idx : index of driver to get handle to.
*
* Returns: handle to video driver at index. Can be NULL
* if nothing found.
**/
const void *video_driver_find_handle(int idx)
{
const void *drv = video_drivers[idx];
if (!drv)
return NULL;
return drv;
}
/**
* video_driver_find_ident:
* @idx : index of driver to get handle to.
*
* Returns: Human-readable identifier of video driver at index. Can be NULL
* if nothing found.
**/
const char *video_driver_find_ident(int idx)
{
const video_driver_t *drv = video_drivers[idx];
if (!drv)
return NULL;
return drv->ident;
}
/**
* config_get_video_driver_options:
*
* Get an enumerated list of all video driver names, separated by '|'.
*
* Returns: string listing of all video driver names, separated by '|'.
**/
const char* config_get_video_driver_options(void)
{
union string_list_elem_attr attr;
unsigned i;
char *options = NULL;
int options_len = 0;
struct string_list *options_l = string_list_new();
attr.i = 0;
if (!options_l)
return NULL;
for (i = 0; video_driver_find_handle(i); i++)
{
const char *opt = video_driver_find_ident(i);
options_len += strlen(opt) + 1;
string_list_append(options_l, opt, attr);
}
options = (char*)calloc(options_len, sizeof(char));
if (!options)
{
string_list_free(options_l);
options_l = NULL;
return NULL;
}
string_list_join_concat(options, options_len, options_l, "|");
string_list_free(options_l);
options_l = NULL;
return options;
}
void find_video_driver(void)
{
int i;
#if defined(HAVE_OPENGL) && defined(HAVE_FBO)
if (g_extern.system.hw_render_callback.context_type)
{
RARCH_LOG("Using HW render, OpenGL driver forced.\n");
driver.video = &video_gl;
return;
}
#endif
if (driver.frontend_ctx &&
driver.frontend_ctx->get_video_driver)
{
driver.video = driver.frontend_ctx->get_video_driver();
if (driver.video)
return;
RARCH_WARN("Frontend supports get_video_driver() but did not specify one.\n");
}
i = find_driver_index("video_driver", g_settings.video.driver);
if (i >= 0)
driver.video = (const video_driver_t*)video_driver_find_handle(i);
else
{
unsigned d;
RARCH_ERR("Couldn't find any video driver named \"%s\"\n",
g_settings.video.driver);
RARCH_LOG_OUTPUT("Available video drivers are:\n");
for (d = 0; video_driver_find_handle(d); d++)
RARCH_LOG_OUTPUT("\t%s\n", video_driver_find_ident(d));
RARCH_WARN("Going to default to first video driver...\n");
driver.video = (const video_driver_t*)video_driver_find_handle(0);
if (!driver.video)
rarch_fail(1, "find_video_driver()");
}
}
/**
* video_driver_resolve:
* @drv : real video driver will be set to this.
*
* Use this if you need the real video driver
* and driver data pointers.
*
* Returns: video driver's userdata.
**/
void *video_driver_resolve(const video_driver_t **drv)
{
#ifdef HAVE_THREADS
if (g_settings.video.threaded
&& !g_extern.system.hw_render_callback.context_type)
return rarch_threaded_video_resolve(drv);
#endif
if (drv)
*drv = driver.video;
return driver.video_data;
}
/**
* video_driver_get_current_framebuffer:
*
* Gets pointer to current hardware renderer framebuffer object.
* Used by RETRO_ENVIRONMENT_SET_HW_RENDER.
*
* Returns: pointer to hardware framebuffer object, otherwise 0.
**/
uintptr_t video_driver_get_current_framebuffer(void)
{
#ifdef HAVE_FBO
if (driver.video_poke && driver.video_poke->get_current_framebuffer)
return driver.video_poke->get_current_framebuffer(driver.video_data);
#endif
return 0;
}
retro_proc_address_t video_driver_get_proc_address(const char *sym)
{
if (driver.video_poke && driver.video_poke->get_proc_address)
return driver.video_poke->get_proc_address(driver.video_data, sym);
return NULL;
}
void video_driver_make_current_context(void)
{
if (driver.video_poke && driver.video_poke->make_current_context)
driver.video_poke->make_current_context(driver.video_data);
}
bool video_driver_is_alive(void)
{
/* Possible race issue, return true */
if (!driver.video || !driver.video_data)
return true;
if (!driver.video->alive(driver.video_data))
return false;
return true;
}
static void deinit_video_filter(void)
{
rarch_softfilter_free(g_extern.filter.filter);
free(g_extern.filter.buffer);
memset(&g_extern.filter, 0, sizeof(g_extern.filter));
}
static void init_video_filter(enum retro_pixel_format colfmt)
{
unsigned width, height, pow2_x, pow2_y, maxsize;
struct retro_game_geometry *geom = NULL;
deinit_video_filter();
if (!*g_settings.video.softfilter_plugin)
return;
/* Deprecated format. Gets pre-converted. */
if (colfmt == RETRO_PIXEL_FORMAT_0RGB1555)
colfmt = RETRO_PIXEL_FORMAT_RGB565;
if (g_extern.system.hw_render_callback.context_type)
{
RARCH_WARN("Cannot use CPU filters when hardware rendering is used.\n");
return;
}
geom = (struct retro_game_geometry*)&g_extern.system.av_info.geometry;
width = geom->max_width;
height = geom->max_height;
g_extern.filter.filter = rarch_softfilter_new(
g_settings.video.softfilter_plugin,
RARCH_SOFTFILTER_THREADS_AUTO, colfmt, width, height);
if (!g_extern.filter.filter)
{
RARCH_ERR("Failed to load filter.\n");
return;
}
rarch_softfilter_get_max_output_size(g_extern.filter.filter,
&width, &height);
pow2_x = next_pow2(width);
pow2_y = next_pow2(height);
maxsize = max(pow2_x, pow2_y);
g_extern.filter.scale = maxsize / RARCH_SCALE_BASE;
g_extern.filter.out_rgb32 = rarch_softfilter_get_output_format(
g_extern.filter.filter) == RETRO_PIXEL_FORMAT_XRGB8888;
g_extern.filter.out_bpp = g_extern.filter.out_rgb32 ?
sizeof(uint32_t) : sizeof(uint16_t);
/* TODO: Aligned output. */
g_extern.filter.buffer = malloc(width * height * g_extern.filter.out_bpp);
if (!g_extern.filter.buffer)
goto error;
return;
error:
RARCH_ERR("Softfilter initialization failed.\n");
deinit_video_filter();
}
static void init_video_input(const input_driver_t *tmp)
{
/* Video driver didn't provide an input driver,
* so we use configured one. */
RARCH_LOG("Graphics driver did not initialize an input driver. Attempting to pick a suitable driver.\n");
if (tmp)
driver.input = tmp;
else
find_input_driver();
if (!driver.input)
{
/* This should never really happen as tmp (driver.input) is always
* found before this in find_driver_input(), or we have aborted
* in a similar fashion anyways. */
rarch_fail(1, "init_video_input()");
}
driver.input_data = driver.input->init();
if (driver.input_data)
return;
RARCH_ERR("Cannot initialize input driver. Exiting ...\n");
rarch_fail(1, "init_video_input()");
}
void uninit_video_input(void)
{
rarch_main_command(RARCH_CMD_OVERLAY_DEINIT);
if (
!driver.input_data_own &&
(driver.input_data != driver.video_data) &&
driver.input &&
driver.input->free)
driver.input->free(driver.input_data);
if (
!driver.video_data_own &&
driver.video_data &&
driver.video &&
driver.video->free)
driver.video->free(driver.video_data);
deinit_pixel_converter();
deinit_video_filter();
rarch_main_command(RARCH_CMD_SHADER_DIR_DEINIT);
video_monitor_compute_fps_statistics();
}
void init_video(void)
{
unsigned max_dim, scale, width, height;
rarch_viewport_t *custom_vp;
const input_driver_t *tmp = NULL;
const struct retro_game_geometry *geom = NULL;
video_info_t video = {0};
static uint16_t dummy_pixels[32] = {0};
init_video_filter(g_extern.system.pix_fmt);
rarch_main_command(RARCH_CMD_SHADER_DIR_INIT);
geom = (const struct retro_game_geometry*)&g_extern.system.av_info.geometry;
max_dim = max(geom->max_width, geom->max_height);
scale = next_pow2(max_dim) / RARCH_SCALE_BASE;
scale = max(scale, 1);
if (g_extern.filter.filter)
scale = g_extern.filter.scale;
/* Update core-dependent aspect ratio values. */
video_viewport_set_square_pixel(geom->base_width, geom->base_height);
video_viewport_set_core();
video_viewport_set_config();
/* Update CUSTOM viewport. */
custom_vp = (rarch_viewport_t*)&g_extern.console.screen.viewports.custom_vp;
if (g_settings.video.aspect_ratio_idx == ASPECT_RATIO_CUSTOM)
{
float default_aspect = aspectratio_lut[ASPECT_RATIO_CORE].value;
aspectratio_lut[ASPECT_RATIO_CUSTOM].value =
(custom_vp->width && custom_vp->height) ?
(float)custom_vp->width / custom_vp->height : default_aspect;
}
g_extern.system.aspect_ratio =
aspectratio_lut[g_settings.video.aspect_ratio_idx].value;
if (g_settings.video.fullscreen)
{
width = g_settings.video.fullscreen_x;
height = g_settings.video.fullscreen_y;
}
else
{
if (g_settings.video.force_aspect)
{
/* Do rounding here to simplify integer scale correctness. */
unsigned base_width = roundf(geom->base_height *
g_extern.system.aspect_ratio);
width = roundf(base_width * g_settings.video.scale);
height = roundf(geom->base_height * g_settings.video.scale);
}
else
{
width = roundf(geom->base_width * g_settings.video.scale);
height = roundf(geom->base_height * g_settings.video.scale);
}
}
if (width && height)
RARCH_LOG("Video @ %ux%u\n", width, height);
else
RARCH_LOG("Video @ fullscreen\n");
driver.display_type = RARCH_DISPLAY_NONE;
driver.video_display = 0;
driver.video_window = 0;
if (!init_video_pixel_converter(RARCH_SCALE_BASE * scale))
{
RARCH_ERR("Failed to initialize pixel converter.\n");
rarch_fail(1, "init_video()");
}
video.width = width;
video.height = height;
video.fullscreen = g_settings.video.fullscreen;
video.vsync = g_settings.video.vsync && !g_extern.system.force_nonblock;
video.force_aspect = g_settings.video.force_aspect;
#ifdef GEKKO
video.viwidth = g_settings.video.viwidth;
video.vfilter = g_settings.video.vfilter;
#endif
video.smooth = g_settings.video.smooth;
video.input_scale = scale;
video.rgb32 = g_extern.filter.filter ?
g_extern.filter.out_rgb32 :
(g_extern.system.pix_fmt == RETRO_PIXEL_FORMAT_XRGB8888);
tmp = (const input_driver_t*)driver.input;
/* Need to grab the "real" video driver interface on a reinit. */
find_video_driver();
#ifdef HAVE_THREADS
if (g_settings.video.threaded && !g_extern.system.hw_render_callback.context_type)
{
/* Can't do hardware rendering with threaded driver currently. */
RARCH_LOG("Starting threaded video driver ...\n");
if (!rarch_threaded_video_init(&driver.video, &driver.video_data,
&driver.input, &driver.input_data,
driver.video, &video))
{
RARCH_ERR("Cannot open threaded video driver ... Exiting ...\n");
rarch_fail(1, "init_video()");
}
}
else
#endif
driver.video_data = driver.video->init(&video, &driver.input,
&driver.input_data);
if (!driver.video_data)
{
RARCH_ERR("Cannot open video driver ... Exiting ...\n");
rarch_fail(1, "init_video()");
}
driver.video_poke = NULL;
if (driver.video->poke_interface)
driver.video->poke_interface(driver.video_data, &driver.video_poke);
if (driver.video->viewport_info && (!custom_vp->width ||
!custom_vp->height))
{
/* Force custom viewport to have sane parameters. */
custom_vp->width = width;
custom_vp->height = height;
driver.video->viewport_info(driver.video_data, custom_vp);
}
if (driver.video->set_rotation)
driver.video->set_rotation(driver.video_data,
(g_settings.video.rotation + g_extern.system.rotation) % 4);
if (driver.video->suppress_screensaver)
driver.video->suppress_screensaver(driver.video_data,
g_settings.ui.suspend_screensaver_enable);
if (!driver.input)
init_video_input(tmp);
rarch_main_command(RARCH_CMD_OVERLAY_DEINIT);
rarch_main_command(RARCH_CMD_OVERLAY_INIT);
g_extern.measure_data.frame_time_samples_count = 0;
g_extern.frame_cache.width = 4;
g_extern.frame_cache.height = 4;
g_extern.frame_cache.pitch = 8;
g_extern.frame_cache.data = &dummy_pixels;
if (driver.video_poke && driver.video_poke->set_texture_frame)
driver.video_poke->set_texture_frame(driver.video_data,
&dummy_pixels, false, 1, 1, 1.0f);
}
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