/* 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 . */ #include "driver.h" #include "general.h" #include "retroarch.h" #include "libretro.h" #include #include #include #include "compat/posix_string.h" #include "audio/utils.h" #include "gfx/video_thread_wrapper.h" #include "audio/audio_thread_wrapper.h" #include "gfx/gfx_common.h" #include #ifdef HAVE_X11 #include "gfx/context/x11_common.h" #endif #ifdef HAVE_MENU #include "menu/menu.h" #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif driver_t driver; static const audio_driver_t *audio_drivers[] = { #ifdef HAVE_ALSA &audio_alsa, #ifndef __QNX__ &audio_alsathread, #endif #endif #if defined(HAVE_OSS) || defined(HAVE_OSS_BSD) &audio_oss, #endif #ifdef HAVE_RSOUND &audio_rsound, #endif #ifdef HAVE_COREAUDIO &audio_coreaudio, #endif #ifdef HAVE_AL &audio_openal, #endif #ifdef HAVE_SL &audio_opensl, #endif #ifdef HAVE_ROAR &audio_roar, #endif #ifdef HAVE_JACK &audio_jack, #endif #if defined(HAVE_SDL) || defined(HAVE_SDL2) &audio_sdl, #endif #ifdef HAVE_XAUDIO &audio_xa, #endif #ifdef HAVE_DSOUND &audio_dsound, #endif #ifdef HAVE_PULSE &audio_pulse, #endif #ifdef __CELLOS_LV2__ &audio_ps3, #endif #ifdef XENON &audio_xenon360, #endif #ifdef GEKKO &audio_gx, #endif #ifdef EMSCRIPTEN &audio_rwebaudio, #endif #ifdef PSP &audio_psp1, #endif &audio_null, NULL, }; /** * config_get_audio_driver_options: * * Get an enumerated list of all audio driver names, separated by '|'. * * Returns: string listing of all audio driver names, separated by '|'. **/ const char* config_get_audio_driver_options(void) { union string_list_elem_attr attr; char *options = NULL; int option_k = 0; int options_len = 0; struct string_list *options_l = string_list_new(); attr.i = 0; for (option_k = 0; audio_drivers[option_k]; option_k++) { const char *opt = audio_drivers[option_k]->ident; options_len += strlen(opt) + 1; string_list_append(options_l, opt, attr); } options = (char*)calloc(options_len, sizeof(char)); string_list_join_concat(options, options_len, options_l, "|"); string_list_free(options_l); options_l = NULL; return options; } 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, }; /** * 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; char *options = NULL; int option_k = 0; int options_len = 0; struct string_list *options_l = string_list_new(); attr.i = 0; for (option_k = 0; video_drivers[option_k]; option_k++) { const char *opt = video_drivers[option_k]->ident; options_len += strlen(opt) + 1; string_list_append(options_l, opt, attr); } options = (char*)calloc(options_len, sizeof(char)); string_list_join_concat(options, options_len, options_l, "|"); string_list_free(options_l); options_l = NULL; return options; } static const input_driver_t *input_drivers[] = { #ifdef __CELLOS_LV2__ &input_ps3, #endif #if defined(SN_TARGET_PSP2) || defined(PSP) &input_psp, #endif #if defined(HAVE_SDL) || defined(HAVE_SDL2) &input_sdl, #endif #ifdef HAVE_DINPUT &input_dinput, #endif #ifdef HAVE_X11 &input_x, #endif #ifdef XENON &input_xenon360, #endif #if defined(HAVE_XINPUT2) || defined(HAVE_XINPUT_XBOX1) &input_xinput, #endif #ifdef GEKKO &input_gx, #endif #ifdef ANDROID &input_android, #endif #ifdef HAVE_UDEV &input_udev, #endif #if defined(__linux__) && !defined(ANDROID) &input_linuxraw, #endif #if defined(IOS) || defined(OSX) /* Don't use __APPLE__ as it breaks basic SDL builds */ &input_apple, #endif #ifdef __QNX__ &input_qnx, #endif #ifdef EMSCRIPTEN &input_rwebinput, #endif &input_null, NULL, }; /** * config_get_input_driver_options: * * Get an enumerated list of all input driver names, separated by '|'. * * Returns: string listing of all input driver names, separated by '|'. **/ const char* config_get_input_driver_options(void) { union string_list_elem_attr attr; char *options = NULL; int option_k = 0; int options_len = 0; struct string_list *options_l = string_list_new(); attr.i = 0; for (option_k = 0; input_drivers[option_k]; option_k++) { const char *opt = input_drivers[option_k]->ident; options_len += strlen(opt) + 1; string_list_append(options_l, opt, attr); } options = (char*)calloc(options_len, sizeof(char)); string_list_join_concat(options, options_len, options_l, "|"); string_list_free(options_l); options_l = NULL; return options; } static const input_osk_driver_t *osk_drivers[] = { #ifdef __CELLOS_LV2__ &input_ps3_osk, #endif &input_null_osk, NULL, }; /** * config_get_osk_driver_options: * * Get an enumerated list of all OSK (onscreen keyboard) driver names, * separated by '|'. * * Returns: string listing of all OSK (onscreen keyboard) driver names, * separated by '|'. **/ const char* config_get_osk_driver_options(void) { union string_list_elem_attr attr; char *options = NULL; int option_k = 0; int options_len = 0; struct string_list *options_l = string_list_new(); attr.i = 0; for (option_k = 0; osk_drivers[option_k]; option_k++) { const char *opt = osk_drivers[option_k]->ident; options_len += strlen(opt) + 1; string_list_append(options_l, opt, attr); } options = (char*)calloc(options_len, sizeof(char)); string_list_join_concat(options, options_len, options_l, "|"); string_list_free(options_l); options_l = NULL; return options; } static const camera_driver_t *camera_drivers[] = { #ifdef HAVE_V4L2 &camera_v4l2, #endif #ifdef EMSCRIPTEN &camera_rwebcam, #endif #ifdef ANDROID &camera_android, #endif #if defined(MAC_OS_X_VERSION_10_7) || defined(__IPHONE_4_0) &camera_apple, #endif &camera_null, NULL, }; /** * config_get_camera_driver_options: * * Get an enumerated list of all camera driver names, * separated by '|'. * * Returns: string listing of all camera driver names, * separated by '|'. **/ const char* config_get_camera_driver_options(void) { union string_list_elem_attr attr; char *options = NULL; int option_k = 0; int options_len = 0; struct string_list *options_l = string_list_new(); attr.i = 0; for (option_k = 0; camera_drivers[option_k]; option_k++) { const char *opt = camera_drivers[option_k]->ident; options_len += strlen(opt) + 1; string_list_append(options_l, opt, attr); } options = (char*)calloc(options_len, sizeof(char)); string_list_join_concat(options, options_len, options_l, "|"); string_list_free(options_l); options_l = NULL; return options; } static const location_driver_t *location_drivers[] = { #ifdef ANDROID &location_android, #endif #if defined(IOS) || defined(OSX) #ifdef HAVE_LOCATION &location_apple, #endif #endif &location_null, NULL, }; /** * config_get_location_driver_options: * * Get an enumerated list of all location driver names, * separated by '|'. * * Returns: string listing of all location driver names, * separated by '|'. **/ const char* config_get_location_driver_options(void) { union string_list_elem_attr attr; char *options = NULL; int option_k = 0; int options_len = 0; struct string_list *options_l = string_list_new(); attr.i = 0; for (option_k = 0; location_drivers[option_k]; option_k++) { const char *opt = location_drivers[option_k]->ident; options_len += strlen(opt) + 1; string_list_append(options_l, opt, attr); } options = (char*)calloc(options_len, sizeof(char)); string_list_join_concat(options, options_len, options_l, "|"); string_list_free(options_l); options_l = NULL; return options; } #ifdef HAVE_MENU static const menu_ctx_driver_t *menu_ctx_drivers[] = { #ifdef IOS &menu_ctx_ios, #endif #if defined(HAVE_RMENU) &menu_ctx_rmenu, #endif #if defined(HAVE_RMENU_XUI) &menu_ctx_rmenu_xui, #endif #if defined(HAVE_LAKKA) &menu_ctx_lakka, #endif #if defined(HAVE_GLUI) &menu_ctx_glui, #endif #if defined(HAVE_XMB) &menu_ctx_xmb, #endif #if defined(HAVE_RGUI) &menu_ctx_rgui, #endif NULL }; /** * config_get_menu_driver_options: * * Get an enumerated list of all menu driver names, * separated by '|'. * * Returns: string listing of all menu driver names, * separated by '|'. **/ const char* config_get_menu_driver_options(void) { union string_list_elem_attr attr; char *options = NULL; int option_k = 0; int options_len = 0; struct string_list *options_l = string_list_new(); attr.i = 0; for (option_k = 0; menu_ctx_drivers[option_k]; option_k++) { const char *opt = menu_ctx_drivers[option_k]->ident; options_len += strlen(opt) + 1; string_list_append(options_l, opt, attr); } options = (char*)calloc(options_len, sizeof(char)); string_list_join_concat(options, options_len, options_l, "|"); string_list_free(options_l); options_l = NULL; return options; } #endif /** * 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_drivers[i]; if (drv) strlcpy(str, camera_drivers[i]->ident, sizeof_str); } else if (!strcmp(label, "location_driver")) { drv = location_drivers[i]; if (drv) strlcpy(str, location_drivers[i]->ident, sizeof_str); } else if (!strcmp(label, "osk_driver")) { drv = osk_drivers[i]; if (drv) strlcpy(str, osk_drivers[i]->ident, sizeof_str); } #ifdef HAVE_MENU else if (!strcmp(label, "menu_driver")) { drv = menu_ctx_drivers[i]; if (drv) strlcpy(str, menu_ctx_drivers[i]->ident, sizeof_str); } #endif else if (!strcmp(label, "input_driver")) { drv = input_drivers[i]; if (drv) strlcpy(str, input_drivers[i]->ident, sizeof_str); } else if (!strcmp(label, "input_joypad_driver")) { drv = joypad_drivers[i]; if (drv) strlcpy(str, joypad_drivers[i]->ident, sizeof_str); } else if (!strcmp(label, "video_driver")) { drv = video_drivers[i]; if (drv) strlcpy(str, video_drivers[i]->ident, sizeof_str); } else if (!strcmp(label, "audio_driver")) { drv = audio_drivers[i]; if (drv) strlcpy(str, audio_drivers[i]->ident, 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. **/ static 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); } /** * find_osk_driver: * * Find OSK (onscreen keyboard) driver. **/ static void find_osk_driver(void) { int i = find_driver_index("osk_driver", g_settings.osk.driver); if (i >= 0) driver.osk = osk_drivers[i]; else { unsigned d; RARCH_ERR("Couldn't find any OSK driver named \"%s\"\n", g_settings.osk.driver); RARCH_LOG_OUTPUT("Available OSK drivers are:\n"); for (d = 0; osk_drivers[d]; d++) RARCH_LOG_OUTPUT("\t%s\n", osk_drivers[d]->ident); RARCH_WARN("Going to default to first OSK driver...\n"); driver.osk = osk_drivers[0]; if (!driver.osk) rarch_fail(1, "find_osk_driver()"); } } static void init_osk(void) { /* Resource leaks will follow if osk is initialized twice. */ if (driver.osk_data) return; find_osk_driver(); /* FIXME - refactor params later based on semantics */ driver.osk_data = driver.osk->init(0); if (!driver.osk_data) { RARCH_ERR("Failed to initialize OSK driver. Will continue without OSK.\n"); driver.osk_active = false; } } static void uninit_osk(void) { if (driver.osk_data && driver.osk && driver.osk->free) driver.osk->free(driver.osk_data); driver.osk_data = NULL; } static void find_camera_driver(void) { int i = find_driver_index("camera_driver", g_settings.camera.driver); if (i >= 0) driver.camera = camera_drivers[i]; else { unsigned d; RARCH_ERR("Couldn't find any camera driver named \"%s\"\n", g_settings.camera.driver); RARCH_LOG_OUTPUT("Available camera drivers are:\n"); for (d = 0; camera_drivers[d]; d++) RARCH_LOG_OUTPUT("\t%s\n", camera_drivers[d]->ident); RARCH_WARN("Going to default to first camera driver...\n"); driver.camera = camera_drivers[0]; if (!driver.camera) rarch_fail(1, "find_camera_driver()"); } } /** * driver_camera_start: * * Starts camera driver interface. * Used by RETRO_ENVIRONMENT_GET_CAMERA_INTERFACE. * * Returns: true (1) if successful, otherwise false (0). **/ bool driver_camera_start(void) { if (driver.camera && driver.camera_data && driver.camera->start) { if (g_settings.camera.allow) return driver.camera->start(driver.camera_data); msg_queue_push(g_extern.msg_queue, "Camera is explicitly disabled.\n", 1, 180); } return false; } /** * driver_camera_stop: * * Stops camera driver. * Used by RETRO_ENVIRONMENT_GET_CAMERA_INTERFACE. * * Returns: true (1) if successful, otherwise false (0). **/ void driver_camera_stop(void) { if (driver.camera && driver.camera->stop && driver.camera_data) driver.camera->stop(driver.camera_data); } /** * driver_camera_poll: * * Call camera driver's poll function. * Used by RETRO_ENVIRONMENT_GET_CAMERA_INTERFACE. * * Returns: true (1) if successful, otherwise false (0). **/ void driver_camera_poll(void) { if (driver.camera && driver.camera->poll && driver.camera_data) driver.camera->poll(driver.camera_data, g_extern.system.camera_callback.frame_raw_framebuffer, g_extern.system.camera_callback.frame_opengl_texture); } static void init_camera(void) { /* Resource leaks will follow if camera is initialized twice. */ if (driver.camera_data) return; find_camera_driver(); driver.camera_data = driver.camera->init( *g_settings.camera.device ? g_settings.camera.device : NULL, g_extern.system.camera_callback.caps, g_settings.camera.width ? g_settings.camera.width : g_extern.system.camera_callback.width, g_settings.camera.height ? g_settings.camera.height : g_extern.system.camera_callback.height); if (!driver.camera_data) { RARCH_ERR("Failed to initialize camera driver. Will continue without camera.\n"); driver.camera_active = false; } if (g_extern.system.camera_callback.initialized) g_extern.system.camera_callback.initialized(); } static void uninit_camera(void) { if (driver.camera_data && driver.camera) { if (g_extern.system.camera_callback.deinitialized) g_extern.system.camera_callback.deinitialized(); if (driver.camera->free) driver.camera->free(driver.camera_data); } driver.camera_data = NULL; } static void find_location_driver(void) { int i = find_driver_index("location_driver", g_settings.location.driver); if (i >= 0) driver.location = location_drivers[i]; else { unsigned d; RARCH_ERR("Couldn't find any location driver named \"%s\"\n", g_settings.location.driver); RARCH_LOG_OUTPUT("Available location drivers are:\n"); for (d = 0; location_drivers[d]; d++) RARCH_LOG_OUTPUT("\t%s\n", location_drivers[d]->ident); RARCH_WARN("Going to default to first location driver...\n"); driver.location = location_drivers[0]; if (!driver.location) rarch_fail(1, "find_location_driver()"); } } /** * driver_location_start: * * Starts location driver interface.. * Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE. * * Returns: true (1) if successful, otherwise false (0). **/ bool driver_location_start(void) { if (driver.location && driver.location_data && driver.location->start) { if (g_settings.location.allow) return driver.location->start(driver.location_data); msg_queue_push(g_extern.msg_queue, "Location is explicitly disabled.\n", 1, 180); } return false; } /** * driver_location_stop: * * Stops location driver interface.. * Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE. * * Returns: true (1) if successful, otherwise false (0). **/ void driver_location_stop(void) { if (driver.location && driver.location->stop && driver.location_data) driver.location->stop(driver.location_data); } /** * driver_location_set_interval: * @interval_msecs : Interval time in milliseconds. * @interval_distance : Distance at which to update. * * Sets interval update time for location driver interface. * Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE. **/ void driver_location_set_interval(unsigned interval_msecs, unsigned interval_distance) { if (driver.location && driver.location->set_interval && driver.location_data) driver.location->set_interval(driver.location_data, interval_msecs, interval_distance); } /** * driver_location_get_position: * @lat : Latitude of current position. * @lon : Longitude of current position. * @horiz_accuracy : Horizontal accuracy. * @vert_accuracy : Vertical accuracy. * * Gets current positioning information from * location driver interface. * Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE. * * Returns: bool (1) if successful, otherwise false (0). **/ bool driver_location_get_position(double *lat, double *lon, double *horiz_accuracy, double *vert_accuracy) { if (driver.location && driver.location->get_position && driver.location_data) return driver.location->get_position(driver.location_data, lat, lon, horiz_accuracy, vert_accuracy); *lat = 0.0; *lon = 0.0; *horiz_accuracy = 0.0; *vert_accuracy = 0.0; return false; } static void init_location(void) { /* Resource leaks will follow if location interface is initialized twice. */ if (driver.location_data) return; find_location_driver(); driver.location_data = driver.location->init(); if (!driver.location_data) { RARCH_ERR("Failed to initialize location driver. Will continue without location.\n"); driver.location_active = false; } if (g_extern.system.location_callback.initialized) g_extern.system.location_callback.initialized(); } static void uninit_location(void) { if (driver.location_data && driver.location) { if (g_extern.system.location_callback.deinitialized) g_extern.system.location_callback.deinitialized(); if (driver.location->free) driver.location->free(driver.location_data); } driver.location_data = NULL; } #ifdef HAVE_MENU static void find_menu_driver(void) { int i = find_driver_index("menu_driver", g_settings.menu.driver); if (i >= 0) driver.menu_ctx = menu_ctx_drivers[i]; else { unsigned d; RARCH_WARN("Couldn't find any menu driver named \"%s\"\n", g_settings.menu.driver); RARCH_LOG_OUTPUT("Available menu drivers are:\n"); for (d = 0; menu_ctx_drivers[d]; d++) RARCH_LOG_OUTPUT("\t%s\n", menu_ctx_drivers[d]->ident); RARCH_WARN("Going to default to first menu driver...\n"); driver.menu_ctx = menu_ctx_drivers[0]; if (!driver.menu_ctx) rarch_fail(1, "find_menu_driver()"); } } #endif static void find_audio_driver(void) { int i = find_driver_index("audio_driver", g_settings.audio.driver); if (i >= 0) driver.audio = audio_drivers[i]; else { unsigned d; RARCH_ERR("Couldn't find any audio driver named \"%s\"\n", g_settings.audio.driver); RARCH_LOG_OUTPUT("Available audio drivers are:\n"); for (d = 0; audio_drivers[d]; d++) RARCH_LOG_OUTPUT("\t%s\n", audio_drivers[d]->ident); RARCH_WARN("Going to default to first audio driver...\n"); driver.audio = audio_drivers[0]; if (!driver.audio) rarch_fail(1, "find_audio_driver()"); } } static 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 = video_drivers[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_drivers[d]; d++) RARCH_LOG_OUTPUT("\t%s\n", video_drivers[d]->ident); RARCH_WARN("Going to default to first video driver...\n"); driver.video = video_drivers[0]; if (!driver.video) rarch_fail(1, "find_video_driver()"); } } static void find_input_driver(void) { int i = find_driver_index("input_driver", g_settings.input.driver); if (i >= 0) driver.input = input_drivers[i]; else { unsigned d; RARCH_ERR("Couldn't find any input driver named \"%s\"\n", g_settings.input.driver); RARCH_LOG_OUTPUT("Available input drivers are:\n"); for (d = 0; input_drivers[d]; d++) RARCH_LOG_OUTPUT("\t%s\n", input_drivers[d]->ident); RARCH_WARN("Going to default to first input driver...\n"); driver.input = input_drivers[0]; if (!driver.input) rarch_fail(1, "find_input_driver()"); } } 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 adjust_system_rates(void) { float timing_skew; const struct retro_system_timing *info = (const struct retro_system_timing*)&g_extern.system.av_info.timing; g_extern.system.force_nonblock = false; if (info->fps <= 0.0 || info->sample_rate <= 0.0) return; timing_skew = fabs(1.0f - info->fps / g_settings.video.refresh_rate); if (timing_skew > g_settings.audio.max_timing_skew) { /* We don't want to adjust pitch too much. If we have extreme cases, * just don't readjust at all. */ RARCH_LOG("Timings deviate too much. Will not adjust. (Display = %.2f Hz, Game = %.2f Hz)\n", g_settings.video.refresh_rate, (float)info->fps); /* We won't be able to do VSync reliably as game FPS > monitor FPS. */ if (info->fps > g_settings.video.refresh_rate) { g_extern.system.force_nonblock = true; RARCH_LOG("Game FPS > Monitor FPS. Cannot rely on VSync.\n"); } g_extern.audio_data.in_rate = info->sample_rate; } else g_extern.audio_data.in_rate = info->sample_rate * (g_settings.video.refresh_rate / info->fps); RARCH_LOG("Set audio input rate to: %.2f Hz.\n", g_extern.audio_data.in_rate); if (driver.video_data) { if (g_extern.system.force_nonblock) rarch_main_command(RARCH_CMD_VIDEO_SET_NONBLOCKING_STATE); else driver_set_nonblock_state(driver.nonblock_state); } } void driver_set_monitor_refresh_rate(float hz) { char msg[PATH_MAX_LENGTH]; snprintf(msg, sizeof(msg), "Setting refresh rate to: %.3f Hz.", hz); msg_queue_push(g_extern.msg_queue, msg, 1, 180); RARCH_LOG("%s\n", msg); g_settings.video.refresh_rate = hz; adjust_system_rates(); g_extern.audio_data.orig_src_ratio = g_extern.audio_data.src_ratio = (double)g_settings.audio.out_rate / g_extern.audio_data.in_rate; } void driver_set_nonblock_state(bool nonblock) { /* Only apply non-block-state for video if we're using vsync. */ if (driver.video_active && driver.video_data) { bool video_nonblock = nonblock; 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 ? nonblock : true); g_extern.audio_data.chunk_size = nonblock ? g_extern.audio_data.nonblock_chunk_size : g_extern.audio_data.block_chunk_size; } /** * driver_set_rumble_state: * @port : User number. * @effect : Rumble effect. * @strength : Strength of rumble effect. * * Sets the rumble state. * Used by RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE. **/ bool driver_set_rumble_state(unsigned port, enum retro_rumble_effect effect, uint16_t strength) { if (driver.input && driver.input_data && driver.input->set_rumble) return driver.input->set_rumble(driver.input_data, port, effect, strength); return false; } /** * driver_set_sensor_state: * @port : User number. * @effect : Sensor action. * @rate : Sensor rate update. * * Sets the sensor state. * Used by RETRO_ENVIRONMENT_GET_SENSOR_INTERFACE. **/ bool driver_set_sensor_state(unsigned port, enum retro_sensor_action action, unsigned rate) { if (driver.input && driver.input_data && driver.input->set_sensor_state) return driver.input->set_sensor_state(driver.input_data, port, action, rate); return false; } float driver_sensor_get_input(unsigned port, unsigned id) { if (driver.input && driver.input_data && driver.input->get_sensor_input) return driver.input->get_sensor_input(driver.input_data, port, id); return 0.0f; } /** * 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 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 driver_get_proc_address(const char *sym) { #ifdef HAVE_FBO if (driver.video_poke && driver.video_poke->get_proc_address) return driver.video_poke->get_proc_address(driver.video_data, sym); #endif return NULL; } /** * 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; } #ifdef HAVE_MENU static void init_menu(void) { if (driver.menu) return; find_menu_driver(); if (!(driver.menu = (menu_handle_t*)menu_init(driver.menu_ctx))) { RARCH_ERR("Cannot initialize menu.\n"); rarch_fail(1, "init_menu()"); } if (!(menu_init_list(driver.menu))) { RARCH_ERR("Cannot initialize menu lists.\n"); rarch_fail(1, "init_menu()"); } } #endif static void init_audio(void) { size_t outsamples_max, max_bufsamples = AUDIO_CHUNK_SIZE_NONBLOCKING * 2; audio_convert_init_simd(); /* Resource leaks will follow if audio is initialized twice. */ if (driver.audio_data) return; /* Accomodate rewind since at some point we might have two full buffers. */ outsamples_max = max_bufsamples * AUDIO_MAX_RATIO * g_settings.slowmotion_ratio; /* Used for recording even if audio isn't enabled. */ rarch_assert(g_extern.audio_data.conv_outsamples = (int16_t*)malloc(outsamples_max * sizeof(int16_t))); g_extern.audio_data.block_chunk_size = AUDIO_CHUNK_SIZE_BLOCKING; g_extern.audio_data.nonblock_chunk_size = AUDIO_CHUNK_SIZE_NONBLOCKING; g_extern.audio_data.chunk_size = g_extern.audio_data.block_chunk_size; /* Needs to be able to hold full content of a full max_bufsamples * in addition to its own. */ rarch_assert(g_extern.audio_data.rewind_buf = (int16_t*) malloc(max_bufsamples * sizeof(int16_t))); g_extern.audio_data.rewind_size = max_bufsamples; if (!g_settings.audio.enable) { driver.audio_active = false; return; } find_audio_driver(); #ifdef HAVE_THREADS if (g_extern.system.audio_callback.callback) { RARCH_LOG("Starting threaded audio driver ...\n"); if (!rarch_threaded_audio_init(&driver.audio, &driver.audio_data, *g_settings.audio.device ? g_settings.audio.device : NULL, g_settings.audio.out_rate, g_settings.audio.latency, driver.audio)) { RARCH_ERR("Cannot open threaded audio driver ... Exiting ...\n"); rarch_fail(1, "init_audio()"); } } else #endif { driver.audio_data = driver.audio->init(*g_settings.audio.device ? g_settings.audio.device : NULL, g_settings.audio.out_rate, g_settings.audio.latency); } if (!driver.audio_data) { RARCH_ERR("Failed to initialize audio driver. Will continue without audio.\n"); driver.audio_active = false; } g_extern.audio_data.use_float = false; if (driver.audio_active && driver.audio->use_float(driver.audio_data)) g_extern.audio_data.use_float = true; if (!g_settings.audio.sync && driver.audio_active) { rarch_main_command(RARCH_CMD_AUDIO_SET_NONBLOCKING_STATE); g_extern.audio_data.chunk_size = g_extern.audio_data.nonblock_chunk_size; } if (g_extern.audio_data.in_rate <= 0.0f) { /* Should never happen. */ RARCH_WARN("Input rate is invalid (%.3f Hz). Using output rate (%u Hz).\n", g_extern.audio_data.in_rate, g_settings.audio.out_rate); g_extern.audio_data.in_rate = g_settings.audio.out_rate; } g_extern.audio_data.orig_src_ratio = g_extern.audio_data.src_ratio = (double)g_settings.audio.out_rate / g_extern.audio_data.in_rate; if (!rarch_resampler_realloc(&driver.resampler_data, &driver.resampler, g_settings.audio.resampler, g_extern.audio_data.orig_src_ratio)) { RARCH_ERR("Failed to initialize resampler \"%s\".\n", g_settings.audio.resampler); driver.audio_active = false; } rarch_assert(g_extern.audio_data.data = (float*) malloc(max_bufsamples * sizeof(float))); g_extern.audio_data.data_ptr = 0; rarch_assert(g_settings.audio.out_rate < g_extern.audio_data.in_rate * AUDIO_MAX_RATIO); rarch_assert(g_extern.audio_data.outsamples = (float*) malloc(outsamples_max * sizeof(float))); g_extern.audio_data.rate_control = false; if (!g_extern.system.audio_callback.callback && driver.audio_active && g_settings.audio.rate_control) { if (driver.audio->buffer_size && driver.audio->write_avail) { g_extern.audio_data.driver_buffer_size = driver.audio->buffer_size(driver.audio_data); g_extern.audio_data.rate_control = true; } else RARCH_WARN("Audio rate control was desired, but driver does not support needed features.\n"); } rarch_main_command(RARCH_CMD_DSP_FILTER_DEINIT); g_extern.measure_data.buffer_free_samples_count = 0; if (driver.audio_active && !g_extern.audio_data.mute && g_extern.system.audio_callback.callback) { /* Threaded driver is initially stopped. */ driver.audio->start(driver.audio_data); } } static void deinit_pixel_converter(void) { scaler_ctx_gen_reset(&driver.scaler); memset(&driver.scaler, 0, sizeof(driver.scaler)); free(driver.scaler_out); driver.scaler_out = NULL; } static bool init_video_pixel_converter(unsigned size) { /* This function can be called multiple times * without deiniting first on consoles. */ deinit_pixel_converter(); if (g_extern.system.pix_fmt == RETRO_PIXEL_FORMAT_0RGB1555) { RARCH_WARN("0RGB1555 pixel format is deprecated, and will be slower. For 15/16-bit, RGB565 format is preferred.\n"); driver.scaler.scaler_type = SCALER_TYPE_POINT; driver.scaler.in_fmt = SCALER_FMT_0RGB1555; /* TODO: Pick either ARGB8888 or RGB565 depending on driver. */ driver.scaler.out_fmt = SCALER_FMT_RGB565; if (!scaler_ctx_gen_filter(&driver.scaler)) return false; driver.scaler_out = calloc(sizeof(uint16_t), size * size); } 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(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. */ gfx_set_square_pixel_viewport(geom->base_width, geom->base_height); gfx_set_core_viewport(); gfx_set_config_viewport(); /* 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_input()"); } 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_input()"); } } 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_input()"); } 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); #ifdef HAVE_X11 if (driver.display_type == RARCH_DISPLAY_X11) { RARCH_LOG("Suspending screensaver (X11).\n"); x11_suspend_screensaver(driver.video_window); } #endif if (!driver.input) { /* 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) { RARCH_ERR("Cannot initialize input driver. Exiting ...\n"); rarch_fail(1, "init_video_input()"); } } 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); } 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)) adjust_system_rates(); if (flags & DRIVER_VIDEO) { g_extern.frame_count = 0; init_video_input(); 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 compute_monitor_fps_statistics(void) { double avg_fps = 0.0, stddev = 0.0; unsigned samples = 0; if (g_settings.video.threaded) { RARCH_LOG("Monitor FPS estimation is disabled for threaded video.\n"); return; } if (g_extern.measure_data.frame_time_samples_count < 2 * MEASURE_FRAME_TIME_SAMPLES_COUNT) { RARCH_LOG( "Does not have enough samples for monitor refresh rate estimation. Requires to run for at least %u frames.\n", 2 * MEASURE_FRAME_TIME_SAMPLES_COUNT); return; } if (driver_monitor_fps_statistics(&avg_fps, &stddev, &samples)) { RARCH_LOG("Average monitor Hz: %.6f Hz. (%.3f %% frame time deviation, based on %u last samples).\n", avg_fps, 100.0 * stddev, samples); } } static void compute_audio_buffer_statistics(void) { unsigned i, low_water_size, high_water_size, avg, stddev; float avg_filled, deviation; uint64_t accum = 0, accum_var = 0; unsigned low_water_count = 0, high_water_count = 0; unsigned samples = min(g_extern.measure_data.buffer_free_samples_count, AUDIO_BUFFER_FREE_SAMPLES_COUNT); if (samples < 3) return; for (i = 1; i < samples; i++) accum += g_extern.measure_data.buffer_free_samples[i]; avg = accum / (samples - 1); for (i = 1; i < samples; i++) { int diff = avg - g_extern.measure_data.buffer_free_samples[i]; accum_var += diff * diff; } stddev = (unsigned)sqrt((double)accum_var / (samples - 2)); avg_filled = 1.0f - (float)avg / g_extern.audio_data.driver_buffer_size; deviation = (float)stddev / g_extern.audio_data.driver_buffer_size; low_water_size = g_extern.audio_data.driver_buffer_size * 3 / 4; high_water_size = g_extern.audio_data.driver_buffer_size / 4; for (i = 1; i < samples; i++) { if (g_extern.measure_data.buffer_free_samples[i] >= low_water_size) low_water_count++; else if (g_extern.measure_data.buffer_free_samples[i] <= high_water_size) high_water_count++; } RARCH_LOG("Average audio buffer saturation: %.2f %%, standard deviation (percentage points): %.2f %%.\n", avg_filled * 100.0, deviation * 100.0); RARCH_LOG("Amount of time spent close to underrun: %.2f %%. Close to blocking: %.2f %%.\n", (100.0 * low_water_count) / (samples - 1), (100.0 * high_water_count) / (samples - 1)); } static void uninit_audio(void) { if (driver.audio_data && driver.audio) driver.audio->free(driver.audio_data); free(g_extern.audio_data.conv_outsamples); g_extern.audio_data.conv_outsamples = NULL; g_extern.audio_data.data_ptr = 0; free(g_extern.audio_data.rewind_buf); g_extern.audio_data.rewind_buf = NULL; if (!g_settings.audio.enable) { driver.audio_active = false; return; } rarch_resampler_freep(&driver.resampler, &driver.resampler_data); free(g_extern.audio_data.data); g_extern.audio_data.data = NULL; free(g_extern.audio_data.outsamples); g_extern.audio_data.outsamples = NULL; rarch_main_command(RARCH_CMD_DSP_FILTER_DEINIT); compute_audio_buffer_statistics(); } 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); compute_monitor_fps_statistics(); } 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; } bool driver_monitor_fps_statistics(double *refresh_rate, double *deviation, unsigned *sample_points) { unsigned i; retro_time_t accum = 0, avg, accum_var = 0; unsigned samples = min(MEASURE_FRAME_TIME_SAMPLES_COUNT, g_extern.measure_data.frame_time_samples_count); if (g_settings.video.threaded || (samples < 2)) return false; /* Measure statistics on frame time (microsecs), *not* FPS. */ for (i = 0; i < samples; i++) accum += g_extern.measure_data.frame_time_samples[i]; #if 0 for (i = 0; i < samples; i++) RARCH_LOG("Interval #%u: %d usec / frame.\n", i, (int)g_extern.measure_data.frame_time_samples[i]); #endif avg = accum / samples; /* Drop first measurement. It is likely to be bad. */ for (i = 0; i < samples; i++) { retro_time_t diff = g_extern.measure_data.frame_time_samples[i] - avg; accum_var += diff * diff; } *deviation = sqrt((double)accum_var / (samples - 1)) / avg; *refresh_rate = 1000000.0 / avg; *sample_points = samples; return true; } /** * driver_video_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 *driver_video_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; }