libretro/RetroArch
1
0
Fork 0
mirror of https://github.com/libretro/RetroArch.git synced 2024-12-01 04:00:32 +00:00
Code Issues Actions 23 Packages Projects Releases Wiki Activity
0bbed0eed3
RetroArch/driver.c

712 lines
20 KiB
C
Raw Blame History

/* 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 "driver.h"
#include "general.h"
#include "retroarch.h"
#include <stdint.h>
#include <string.h>
#include "compat/posix_string.h"
#include "gfx/video_thread_wrapper.h"
#include "gfx/video_monitor.h"
#include "gfx/video_viewport.h"
#include "gfx/video_pixel_converter.h"
#include "audio/audio_monitor.h"
#include "gfx/drivers_context/win32_dwm_common.h"
#ifdef HAVE_MENU
#include "menu/menu.h"
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
driver_t driver;
/**
* find_driver_nonempty:
* @label : string of driver type to be found.
* @i : index of driver.
* @str : identifier name of the found driver
* gets written to this string.
* @sizeof_str : size of @str.
*
* Find driver based on @label.
*
* Returns: NULL if no driver based on @label found, otherwise
* pointer to driver.
**/
static const void *find_driver_nonempty(const char *label, int i,
char *str, size_t sizeof_str)
{
const void *drv = NULL;
if (!strcmp(label, "camera_driver"))
{
drv = camera_driver_find_handle(i);
if (drv)
strlcpy(str, camera_driver_find_ident(i), sizeof_str);
}
else if (!strcmp(label, "location_driver"))
{
drv = location_driver_find_handle(i);
if (drv)
strlcpy(str, location_driver_find_ident(i), sizeof_str);
}
else if (!strcmp(label, "osk_driver"))
{
drv = osk_driver_find_handle(i);
if (drv)
strlcpy(str, osk_driver_find_ident(i), sizeof_str);
}
#ifdef HAVE_MENU
else if (!strcmp(label, "menu_driver"))
{
drv = menu_driver_find_handle(i);
if (drv)
strlcpy(str, menu_driver_find_ident(i), sizeof_str);
}
#endif
else if (!strcmp(label, "input_driver"))
{
drv = input_driver_find_handle(i);
if (drv)
strlcpy(str, input_driver_find_ident(i), sizeof_str);
}
else if (!strcmp(label, "input_joypad_driver"))
{
drv = joypad_driver_find_handle(i);
if (drv)
strlcpy(str, joypad_driver_find_ident(i), sizeof_str);
}
else if (!strcmp(label, "video_driver"))
{
drv = video_driver_find_handle(i);
if (drv)
strlcpy(str, video_driver_find_ident(i), sizeof_str);
}
else if (!strcmp(label, "audio_driver"))
{
drv = audio_driver_find_handle(i);
if (drv)
strlcpy(str, audio_driver_find_ident(i), sizeof_str);
}
else if (!strcmp(label, "audio_resampler_driver"))
{
drv = audio_resampler_driver_find_handle(i);
if (drv)
strlcpy(str, audio_resampler_driver_find_ident(i), sizeof_str);
}
return drv;
}
/**
* find_driver_index:
* @label : string of driver type to be found.
* @drv : identifier of driver to be found.
*
* Find index of the driver, based on @label.
*
* Returns: -1 if no driver based on @label and @drv found, otherwise
* index number of the driver found in the array.
**/
int find_driver_index(const char * label, const char *drv)
{
unsigned i;
char str[PATH_MAX_LENGTH];
const void *obj = NULL;
for (i = 0; (obj = (const void*)
find_driver_nonempty(label, i, str, sizeof(str))) != NULL; i++)
{
if (!obj)
return -1;
if (str[0] == '\0')
break;
if (!strcasecmp(drv, str))
return i;
}
return -1;
}
/**
* find_prev_driver:
* @label : string of driver type to be found.
* @str : identifier of driver to be found.
* @sizeof_str : size of @str.
*
* Find previous driver in driver array.
**/
void find_prev_driver(const char *label, char *str, size_t sizeof_str)
{
int i = find_driver_index(label, str);
if (i > 0)
find_driver_nonempty(label, i - 1, str, sizeof_str);
else
RARCH_WARN(
"Couldn't find any previous driver (current one: \"%s\").\n", str);
}
/**
* find_next_driver:
* @label : string of driver type to be found.
* @str : identifier of driver to be found.
* @sizeof_str : size of @str.
*
* Find next driver in driver array.
**/
void find_next_driver(const char *label, char *str, size_t sizeof_str)
{
int i = find_driver_index(label, str);
if (i >= 0)
find_driver_nonempty(label, i + 1, str, sizeof_str);
else
RARCH_WARN("Couldn't find any next driver (current one: \"%s\").\n", str);
}
/**
* init_drivers_pre:
*
* Attempts to find a default driver for
* all driver types.
*
* Should be run before init_drivers().
**/
void init_drivers_pre(void)
{
find_audio_driver();
find_video_driver();
find_input_driver();
find_camera_driver();
find_location_driver();
find_osk_driver();
#ifdef HAVE_MENU
find_menu_driver();
#endif
}
static void driver_adjust_system_rates(void)
{
audio_monitor_adjust_system_rates();
video_monitor_adjust_system_rates();
if (!driver.video_data)
return;
if (g_extern.system.force_nonblock)
rarch_main_command(RARCH_CMD_VIDEO_SET_NONBLOCKING_STATE);
else
driver_set_nonblock_state(driver.nonblock_state);
}
/**
* driver_set_refresh_rate:
* @hz : New refresh rate for monitor.
*
* Sets monitor refresh rate to new value by calling
* video_monitor_set_refresh_rate(). Subsequently
* calls audio_monitor_set_refresh_rate().
**/
void driver_set_refresh_rate(float hz)
{
video_monitor_set_refresh_rate(hz);
audio_monitor_set_refresh_rate();
driver_adjust_system_rates();
}
/**
* driver_set_nonblock_state:
* @enable : Enable nonblock state?
*
* Sets audio and video drivers to nonblock state.
*
* If @enable is false, sets blocking state for both
* audio and video drivers instead.
**/
void driver_set_nonblock_state(bool enable)
{
/* Only apply non-block-state for video if we're using vsync. */
if (driver.video_active && driver.video_data)
{
bool video_nonblock = enable;
if (!g_settings.video.vsync || g_extern.system.force_nonblock)
video_nonblock = true;
driver.video->set_nonblock_state(driver.video_data, video_nonblock);
}
if (driver.audio_active && driver.audio_data)
driver.audio->set_nonblock_state(driver.audio_data,
g_settings.audio.sync ? enable : true);
g_extern.audio_data.chunk_size = enable ?
g_extern.audio_data.nonblock_chunk_size :
g_extern.audio_data.block_chunk_size;
}
/**
* driver_update_system_av_info:
* @info : pointer to new A/V info
*
* Update the system Audio/Video information.
* Will reinitialize audio/video drivers.
* Used by RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO.
*
* Returns: true (1) if successful, otherwise false (0).
**/
bool driver_update_system_av_info(const struct retro_system_av_info *info)
{
g_extern.system.av_info = *info;
rarch_main_command(RARCH_CMD_REINIT);
/* Cannot continue recording with different parameters.
* Take the easiest route out and just restart the recording. */
if (driver.recording_data)
{
static const char *msg = "Restarting recording due to driver reinit.";
msg_queue_push(g_extern.msg_queue, msg, 2, 180);
RARCH_WARN("%s\n", msg);
rarch_main_command(RARCH_CMD_RECORD_DEINIT);
rarch_main_command(RARCH_CMD_RECORD_INIT);
}
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()");
}
static 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);
}
/**
* init_drivers:
* @flags : Bitmask of drivers to initialize.
*
* Initializes drivers.
* @flags determines which drivers get initialized.
**/
void init_drivers(int flags)
{
if (flags & DRIVER_VIDEO)
driver.video_data_own = false;
if (flags & DRIVER_AUDIO)
driver.audio_data_own = false;
if (flags & DRIVER_INPUT)
driver.input_data_own = false;
if (flags & DRIVER_CAMERA)
driver.camera_data_own = false;
if (flags & DRIVER_LOCATION)
driver.location_data_own = false;
if (flags & DRIVER_OSK)
driver.osk_data_own = false;
#ifdef HAVE_MENU
/* By default, we want the menu to persist through driver reinits. */
driver.menu_data_own = true;
#endif
if (flags & (DRIVER_VIDEO | DRIVER_AUDIO))
driver_adjust_system_rates();
if (flags & DRIVER_VIDEO)
{
g_extern.frame_count = 0;
init_video();
if (!driver.video_cache_context_ack
&& g_extern.system.hw_render_callback.context_reset)
g_extern.system.hw_render_callback.context_reset();
driver.video_cache_context_ack = false;
g_extern.system.frame_time_last = 0;
}
if (flags & DRIVER_AUDIO)
init_audio();
/* Only initialize camera driver if we're ever going to use it. */
if ((flags & DRIVER_CAMERA) && driver.camera_active)
init_camera();
/* Only initialize location driver if we're ever going to use it. */
if ((flags & DRIVER_LOCATION) && driver.location_active)
init_location();
if (flags & DRIVER_OSK)
init_osk();
#ifdef HAVE_MENU
if (flags & DRIVER_MENU)
{
init_menu();
if (driver.menu && driver.menu_ctx && driver.menu_ctx->context_reset)
driver.menu_ctx->context_reset(driver.menu);
}
#endif
if (flags & (DRIVER_VIDEO | DRIVER_AUDIO))
{
/* Keep non-throttled state as good as possible. */
if (driver.nonblock_state)
driver_set_nonblock_state(driver.nonblock_state);
}
}
static 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();
}
/**
* uninit_drivers:
* @flags : Bitmask of drivers to deinitialize.
*
* Deinitializes drivers.
* @flags determines which drivers get deinitialized.
**/
void uninit_drivers(int flags)
{
if (flags & DRIVER_AUDIO)
uninit_audio();
if (flags & DRIVER_VIDEO)
{
if (g_extern.system.hw_render_callback.context_destroy &&
!driver.video_cache_context)
g_extern.system.hw_render_callback.context_destroy();
}
#ifdef HAVE_MENU
if (flags & DRIVER_MENU)
{
if (driver.menu && driver.menu_ctx && driver.menu_ctx->context_destroy)
driver.menu_ctx->context_destroy(driver.menu);
if (!driver.menu_data_own)
{
menu_free_list(driver.menu);
menu_free(driver.menu);
driver.menu = NULL;
}
}
#endif
if (flags & DRIVERS_VIDEO_INPUT)
uninit_video_input();
if ((flags & DRIVER_VIDEO) && !driver.video_data_own)
driver.video_data = NULL;
if ((flags & DRIVER_CAMERA) && !driver.camera_data_own)
{
uninit_camera();
driver.camera_data = NULL;
}
if ((flags & DRIVER_LOCATION) && !driver.location_data_own)
{
uninit_location();
driver.location_data = NULL;
}
if ((flags & DRIVER_OSK) && !driver.osk_data_own)
{
uninit_osk();
driver.osk_data = NULL;
}
if ((flags & DRIVER_INPUT) && !driver.input_data_own)
driver.input_data = NULL;
if ((flags & DRIVER_AUDIO) && !driver.audio_data_own)
driver.audio_data = NULL;
}
Reference in New Issue View Git Blame Copy Permalink