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RetroArch/driver.c
Tobias Jakobi 9a38d77655 Remove the lima video driver 
The driver is now superseded by the exynos video driver. Also limare
only works up to mali kernelspace driver version r3p2, which makes
the driver nonfunctional with the latest r4p0.
2014-07-17 14:55:56 +02:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2014 - 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 "file.h"
#include "libretro.h"
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "compat/posix_string.h"
#include "audio/utils.h"
#include "audio/resampler.h"
#include "gfx/thread_wrapper.h"
#include "audio/thread_wrapper.h"
#include "audio/dsp_filter.h"
#include "gfx/gfx_common.h"
#ifdef HAVE_X11
#include "gfx/context/x11_common.h"
#endif
#ifdef HAVE_MENU
#include "frontend/menu/menu_common.h"
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
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
#ifdef HAVE_SDL
&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
#ifdef HAVE_NULLAUDIO
&audio_null,
#endif
NULL,
};
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_XVIDEO
&video_xvideo,
#endif
#ifdef GEKKO
&video_gx,
#endif
#ifdef HAVE_VG
&video_vg,
#endif
#ifdef HAVE_NULLVIDEO
&video_null,
#endif
#ifdef HAVE_OMAP
&video_omap,
#endif
#ifdef HAVE_EXYNOS
&video_exynos,
#endif
NULL,
};
static const input_driver_t *input_drivers[] = {
#ifdef __CELLOS_LV2__
&input_ps3,
#endif
#if defined(SN_TARGET_PSP2) || defined(PSP)
&input_psp,
#endif
#ifdef HAVE_SDL
&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
#ifdef HAVE_NULLINPUT
&input_null,
#endif
NULL,
};
#ifdef HAVE_OSK
#include "driver-contexts/osk_driver.c"
#endif
#ifdef HAVE_CAMERA
#include "driver-contexts/camera_driver.c"
#endif
#ifdef HAVE_LOCATION
#include "driver-contexts/location_driver.c"
#endif
#ifdef HAVE_MENU
#include "driver-contexts/menu_driver.c"
#endif
static int find_audio_driver_index(const char *driver)
{
unsigned i;
for (i = 0; audio_drivers[i]; i++)
if (strcasecmp(driver, audio_drivers[i]->ident) == 0)
return i;
return -1;
}
static int find_video_driver_index(const char *driver)
{
unsigned i;
for (i = 0; video_drivers[i]; i++)
if (strcasecmp(driver, video_drivers[i]->ident) == 0)
return i;
return -1;
}
static int find_input_driver_index(const char *driver)
{
unsigned i;
for (i = 0; input_drivers[i]; i++)
if (strcasecmp(driver, input_drivers[i]->ident) == 0)
return i;
return -1;
}
static void find_audio_driver(void)
{
int i = find_audio_driver_index(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()");
}
}
void find_prev_audio_driver(void)
{
int i = find_audio_driver_index(g_settings.audio.driver);
if (i > 0)
strlcpy(g_settings.audio.driver, audio_drivers[i - 1]->ident, sizeof(g_settings.audio.driver));
else
RARCH_WARN("Couldn't find any previous audio driver (current one: \"%s\").\n", g_settings.audio.driver);
}
void find_next_audio_driver(void)
{
int i = find_audio_driver_index(g_settings.audio.driver);
if (i >= 0 && audio_drivers[i + 1])
strlcpy(g_settings.audio.driver, audio_drivers[i + 1]->ident, sizeof(g_settings.audio.driver));
else
RARCH_WARN("Couldn't find any next audio driver (current one: \"%s\").\n", g_settings.audio.driver);
}
static void find_video_driver(void)
{
#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
int i = find_video_driver_index(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()");
}
}
void find_prev_video_driver(void)
{
// No need to enforce GL if HW render. This is done at driver initialize anyways.
int i = find_video_driver_index(g_settings.video.driver);
if (i > 0)
strlcpy(g_settings.video.driver, video_drivers[i - 1]->ident, sizeof(g_settings.video.driver));
else
RARCH_WARN("Couldn't find any previous video driver (current one: \"%s\").\n", g_settings.video.driver);
}
void find_next_video_driver(void)
{
// No need to enforce GL if HW render. This is done at driver initialize anyways.
int i = find_video_driver_index(g_settings.video.driver);
if (i >= 0 && video_drivers[i + 1])
strlcpy(g_settings.video.driver, video_drivers[i + 1]->ident, sizeof(g_settings.video.driver));
else
RARCH_WARN("Couldn't find any next video driver (current one: \"%s\").\n", g_settings.video.driver);
}
static void find_input_driver(void)
{
int i = find_input_driver_index(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 find_prev_input_driver(void)
{
int i = find_input_driver_index(g_settings.input.driver);
if (i > 0)
strlcpy(g_settings.input.driver, input_drivers[i - 1]->ident, sizeof(g_settings.input.driver));
else
RARCH_ERR("Couldn't find any previous input driver (current one: \"%s\").\n", g_settings.input.driver);
}
void find_next_input_driver(void)
{
int i = find_input_driver_index(g_settings.input.driver);
if (i >= 0 && input_drivers[i + 1])
strlcpy(g_settings.input.driver, input_drivers[i + 1]->ident, sizeof(g_settings.input.driver));
else
RARCH_ERR("Couldn't find any next input driver (current one: \"%s\").\n", g_settings.input.driver);
}
void init_drivers_pre(void)
{
find_audio_driver();
find_video_driver();
find_input_driver();
#ifdef HAVE_CAMERA
find_camera_driver();
#endif
#ifdef HAVE_LOCATION
find_location_driver();
#endif
#ifdef HAVE_OSK
find_osk_driver();
#endif
#ifdef HAVE_MENU
find_menu_driver();
#endif
}
static void adjust_system_rates(void)
{
g_extern.system.force_nonblock = false;
const struct retro_system_timing *info = &g_extern.system.av_info.timing;
if (info->fps <= 0.0 || info->sample_rate <= 0.0)
return;
float timing_skew = fabs(1.0f - info->fps / g_settings.video.refresh_rate);
if (timing_skew > 0.05f) // 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_settings.audio.in_rate = info->sample_rate;
}
else
g_settings.audio.in_rate = info->sample_rate *
(g_settings.video.refresh_rate / info->fps);
RARCH_LOG("Set audio input rate to: %.2f Hz.\n", g_settings.audio.in_rate);
if (driver.video_data)
{
if (g_extern.system.force_nonblock)
video_set_nonblock_state_func(true);
else
driver_set_nonblock_state(driver.nonblock_state);
}
}
void driver_set_monitor_refresh_rate(float hz)
{
char msg[256];
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_settings.audio.in_rate;
}
void driver_set_nonblock_state(bool nonblock)
{
// Only apply non-block-state for video if we're using vsync.
if (g_extern.video_active && driver.video_data)
{
bool video_nb = nonblock;
if (!g_settings.video.vsync || g_extern.system.force_nonblock)
video_nb = true;
video_set_nonblock_state_func(video_nb);
}
if (g_extern.audio_active && driver.audio_data)
audio_set_nonblock_state_func(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;
}
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);
else
return false;
}
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);
else
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);
else
return 0.0f;
}
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);
else
#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);
else
#endif
return NULL;
}
bool driver_update_system_av_info(const struct retro_system_av_info *info)
{
g_extern.system.av_info = *info;
rarch_reinit_drivers();
// Cannot continue recording with different parameters.
// Take the easiest route out and just restart the recording.
#ifdef HAVE_RECORD
if (g_extern.rec)
{
static const char *msg = "Restarting FFmpeg recording due to driver reinit.";
msg_queue_push(g_extern.msg_queue, msg, 2, 180);
RARCH_WARN("%s\n", msg);
rarch_deinit_recording();
rarch_init_recording();
}
#endif
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()");
}
}
#endif
void init_drivers(void)
{
driver.video_data_own = false;
driver.audio_data_own = false;
driver.input_data_own = false;
#ifdef HAVE_CAMERA
driver.camera_data_own = false;
#endif
#ifdef HAVE_LOCATION
driver.location_data_own = false;
#endif
#ifdef HAVE_OSK
driver.osk_data_own = false;
#endif
#ifdef HAVE_MENU
// By default, we want the menu to persist through driver reinits.
driver.menu_data_own = true;
#endif
adjust_system_rates();
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;
init_audio();
#ifdef HAVE_CAMERA
// Only initialize camera driver if we're ever going to use it.
if (g_extern.camera_active)
init_camera();
#endif
#ifdef HAVE_LOCATION
// Only initialize location driver if we're ever going to use it.
if (g_extern.location_active)
init_location();
#endif
#ifdef HAVE_OSK
init_osk();
#endif
#ifdef HAVE_MENU
init_menu();
if (driver.menu && driver.menu_ctx && driver.menu_ctx->context_reset)
driver.menu_ctx->context_reset(driver.menu);
#endif
// Keep non-throttled state as good as possible.
if (driver.nonblock_state)
driver_set_nonblock_state(driver.nonblock_state);
g_extern.system.frame_time_last = 0;
}
void rarch_deinit_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 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 void deinit_shader_dir(void)
{
// It handles NULL, no worries :D
dir_list_free(g_extern.shader_dir.list);
g_extern.shader_dir.list = NULL;
g_extern.shader_dir.ptr = 0;
}
static void compute_monitor_fps_statistics(void)
{
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;
}
double avg_fps = 0.0;
double stddev = 0.0;
unsigned samples = 0;
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);
}
}
void uninit_drivers(void)
{
uninit_audio();
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 (driver.menu && driver.menu_ctx && driver.menu_ctx->context_destroy)
driver.menu_ctx->context_destroy(driver.menu);
if (!driver.menu_data_own)
{
menu_free(driver.menu);
driver.menu = NULL;
}
#endif
uninit_video_input();
if (!driver.video_data_own)
driver.video_data = NULL;
#ifdef HAVE_CAMERA
if (!driver.camera_data_own)
{
uninit_camera();
driver.camera_data = NULL;
}
#endif
#ifdef HAVE_LOCATION
if (!driver.location_data_own)
{
uninit_location();
driver.location_data = NULL;
}
#endif
#ifdef HAVE_OSK
if (!driver.osk_data_own)
{
uninit_osk();
driver.osk_data = NULL;
}
#endif
if (!driver.input_data_own)
driver.input_data = NULL;
if (!driver.audio_data_own)
driver.audio_data = NULL;
}
void rarch_init_dsp_filter(void)
{
rarch_deinit_dsp_filter();
if (!*g_settings.audio.dsp_plugin)
return;
g_extern.audio_data.dsp = rarch_dsp_filter_new(g_settings.audio.dsp_plugin, g_settings.audio.in_rate);
if (!g_extern.audio_data.dsp)
RARCH_ERR("[DSP]: Failed to initialize DSP filter \"%s\".\n", g_settings.audio.dsp_plugin);
}
void rarch_deinit_dsp_filter(void)
{
if (g_extern.audio_data.dsp)
rarch_dsp_filter_free(g_extern.audio_data.dsp);
g_extern.audio_data.dsp = NULL;
}
void init_audio(void)
{
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.
size_t max_bufsamples = AUDIO_CHUNK_SIZE_NONBLOCKING * 2;
size_t 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)
{
g_extern.audio_active = false;
return;
}
#ifdef HAVE_THREADS
find_audio_driver();
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 = audio_init_func(*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");
g_extern.audio_active = false;
}
g_extern.audio_data.use_float = false;
if (g_extern.audio_active && driver.audio->use_float && audio_use_float_func())
g_extern.audio_data.use_float = true;
if (!g_settings.audio.sync && g_extern.audio_active)
{
audio_set_nonblock_state_func(true);
g_extern.audio_data.chunk_size = g_extern.audio_data.nonblock_chunk_size;
}
g_extern.audio_data.orig_src_ratio =
g_extern.audio_data.src_ratio =
(double)g_settings.audio.out_rate / g_settings.audio.in_rate;
if (!rarch_resampler_realloc(&g_extern.audio_data.resampler_data, &g_extern.audio_data.resampler,
g_settings.audio.resampler, g_extern.audio_data.orig_src_ratio))
{
RARCH_ERR("Failed to initialize resampler \"%s\".\n", g_settings.audio.resampler);
g_extern.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_settings.audio.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 && g_extern.audio_active && g_settings.audio.rate_control)
{
if (driver.audio->buffer_size && driver.audio->write_avail)
{
g_extern.audio_data.driver_buffer_size = audio_buffer_size_func();
g_extern.audio_data.rate_control = true;
}
else
RARCH_WARN("Audio rate control was desired, but driver does not support needed features.\n");
}
rarch_init_dsp_filter();
g_extern.measure_data.buffer_free_samples_count = 0;
if (g_extern.audio_active && !g_extern.audio_data.mute && g_extern.system.audio_callback.callback) // Threaded driver is initially stopped.
audio_start_func();
}
static void compute_audio_buffer_statistics(void)
{
unsigned i, samples;
samples = min(g_extern.measure_data.buffer_free_samples_count, AUDIO_BUFFER_FREE_SAMPLES_COUNT);
if (samples < 3)
return;
uint64_t accum = 0;
for (i = 1; i < samples; i++)
accum += g_extern.measure_data.buffer_free_samples[i];
int avg = accum / (samples - 1);
uint64_t accum_var = 0;
for (i = 1; i < samples; i++)
{
int diff = avg - g_extern.measure_data.buffer_free_samples[i];
accum_var += diff * diff;
}
unsigned stddev = (unsigned)sqrt((double)accum_var / (samples - 2));
float avg_filled = 1.0f - (float)avg / g_extern.audio_data.driver_buffer_size;
float deviation = (float)stddev / g_extern.audio_data.driver_buffer_size;
unsigned low_water_size = g_extern.audio_data.driver_buffer_size * 3 / 4;
unsigned high_water_size = g_extern.audio_data.driver_buffer_size / 4;
unsigned low_water_count = 0;
unsigned high_water_count = 0;
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));
}
bool driver_monitor_fps_statistics(double *refresh_rate, double *deviation, unsigned *sample_points)
{
unsigned i;
if (g_settings.video.threaded)
return false;
unsigned samples = min(MEASURE_FRAME_TIME_SAMPLES_COUNT, g_extern.measure_data.frame_time_samples_count);
if (samples < 2)
return false;
// Measure statistics on frame time (microsecs), *not* FPS.
retro_time_t accum = 0;
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
retro_time_t avg = accum / samples;
retro_time_t accum_var = 0;
// 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;
}
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)
{
g_extern.audio_active = false;
return;
}
rarch_resampler_freep(&g_extern.audio_data.resampler, &g_extern.audio_data.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_deinit_dsp_filter();
compute_audio_buffer_statistics();
}
void rarch_init_filter(enum retro_pixel_format colfmt)
{
rarch_deinit_filter();
#ifndef HAVE_FILTERS_BUILTIN
if (!*g_settings.video.filter_path)
return;
#endif
// 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;
}
struct retro_game_geometry *geom = &g_extern.system.av_info.geometry;
unsigned width = geom->max_width;
unsigned height = geom->max_height;
unsigned pow2_x = 0;
unsigned pow2_y = 0;
unsigned maxsize = 0;
#ifndef HAVE_FILTERS_BUILTIN
RARCH_LOG("Loading softfilter from \"%s\"\n", g_settings.video.filter_path);
#endif
g_extern.filter.filter = rarch_softfilter_new(g_settings.video.filter_path,
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");
rarch_deinit_filter();
}
static void init_shader_dir(void)
{
unsigned i;
if (!*g_settings.video.shader_dir)
return;
g_extern.shader_dir.list = dir_list_new(g_settings.video.shader_dir, "cg|cgp|glsl|glslp", false);
if (!g_extern.shader_dir.list || g_extern.shader_dir.list->size == 0)
{
deinit_shader_dir();
return;
}
g_extern.shader_dir.ptr = 0;
dir_list_sort(g_extern.shader_dir.list, false);
for (i = 0; i < g_extern.shader_dir.list->size; i++)
RARCH_LOG("Found shader \"%s\"\n", g_extern.shader_dir.list->elems[i].data);
}
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;
}
void init_video_input(void)
{
rarch_init_filter(g_extern.system.pix_fmt);
init_shader_dir();
const struct retro_game_geometry *geom = &g_extern.system.av_info.geometry;
unsigned max_dim = max(geom->max_width, geom->max_height);
unsigned 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.
rarch_viewport_t *custom_vp = &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;
unsigned width;
unsigned height;
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.xscale);
height = roundf(geom->base_height * g_settings.video.yscale);
}
else
{
width = roundf(geom->base_width * g_settings.video.xscale);
height = roundf(geom->base_height * g_settings.video.yscale);
}
}
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_info_t video = {0};
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;
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);
const input_driver_t *tmp = driver.input;
find_video_driver(); // Need to grab the "real" video driver interface on a reinit.
#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 = video_init_func(&video, &driver.input, &driver.input_data);
if (driver.video_data == NULL)
{
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);
// Force custom viewport to have sane parameters.
if (driver.video->viewport_info && (!custom_vp->width || !custom_vp->height))
{
custom_vp->width = width;
custom_vp->height = height;
driver.video->viewport_info(driver.video_data, custom_vp);
}
if (driver.video->set_rotation)
video_set_rotation_func((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
// Video driver didn't provide an input driver so we use configured one.
if (driver.input == NULL)
{
RARCH_LOG("Graphics driver did not initialize an input driver. Attempting to pick a suitable driver.\n");
driver.input = tmp;
if (driver.input)
{
driver.input_data = input_init_func();
if (driver.input_data == NULL)
{
RARCH_ERR("Cannot initialize input driver. Exiting ...\n");
rarch_fail(1, "init_video_input()");
}
}
else
{
RARCH_ERR("Cannot find input driver.\n");
RARCH_WARN("Going to default to first input driver...\n");
driver.input = input_drivers[0];
if (!driver.input)
{
RARCH_ERR("Still cannot find input driver. Exiting ...\n");
rarch_fail(1, "init_video_input()");
}
}
}
#ifdef HAVE_OVERLAY
if (driver.overlay)
{
input_overlay_free(driver.overlay);
driver.overlay = NULL;
}
if (*g_settings.input.overlay)
{
driver.overlay = input_overlay_new(g_settings.input.overlay);
if (!driver.overlay)
RARCH_ERR("Failed to load overlay.\n");
}
#endif
g_extern.measure_data.frame_time_samples_count = 0;
}
void uninit_video_input(void)
{
#ifdef HAVE_OVERLAY
if (driver.overlay)
{
input_overlay_free(driver.overlay);
driver.overlay = NULL;
memset(&driver.overlay_state, 0, sizeof(driver.overlay_state));
}
#endif
if (!driver.input_data_own && driver.input_data != driver.video_data && driver.input && driver.input->free)
input_free_func();
if (!driver.video_data_own && driver.video_data && driver.video && driver.video->free)
video_free_func();
deinit_pixel_converter();
rarch_deinit_filter();
deinit_shader_dir();
compute_monitor_fps_statistics();
}
driver_t driver;
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