mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-16 21:58:06 +00:00
590 lines
16 KiB
C
590 lines
16 KiB
C
/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
|
|
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
|
|
*
|
|
* Some code herein may be based on code found in BSNES.
|
|
*
|
|
* SSNES 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.
|
|
*
|
|
* SSNES 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 SSNES.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
#include "driver.h"
|
|
#include "general.h"
|
|
#include "file.h"
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
#include "posix_string.h"
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
static const audio_driver_t *audio_drivers[] = {
|
|
#ifdef HAVE_ALSA
|
|
&audio_alsa,
|
|
#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_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 HAVE_DYLIB
|
|
&audio_ext,
|
|
#endif
|
|
#ifdef __CELLOS_LV2__
|
|
&audio_ps3,
|
|
#endif
|
|
#ifdef XENON
|
|
&audio_xenon360,
|
|
#endif
|
|
#ifdef _XBOX
|
|
&audio_xdk360,
|
|
#endif
|
|
#ifdef GEKKO
|
|
&audio_wii,
|
|
#endif
|
|
};
|
|
|
|
static const video_driver_t *video_drivers[] = {
|
|
#ifdef HAVE_OPENGL
|
|
&video_gl,
|
|
#endif
|
|
#ifdef XENON
|
|
&video_xenon360,
|
|
#endif
|
|
#ifdef _XBOX
|
|
&video_xdk360,
|
|
#endif
|
|
#ifdef HAVE_SDL
|
|
&video_sdl,
|
|
#endif
|
|
#ifdef HAVE_XVIDEO
|
|
&video_xvideo,
|
|
#endif
|
|
#ifdef HAVE_DYLIB
|
|
&video_ext,
|
|
#endif
|
|
#ifdef GEKKO
|
|
&video_wii,
|
|
#endif
|
|
};
|
|
|
|
static const input_driver_t *input_drivers[] = {
|
|
#ifdef __CELLOS_LV2__
|
|
&input_ps3,
|
|
#endif
|
|
#ifdef HAVE_SDL
|
|
&input_sdl,
|
|
#endif
|
|
#ifdef HAVE_XVIDEO
|
|
&input_x,
|
|
#endif
|
|
#ifdef XENON
|
|
&input_xenon360,
|
|
#endif
|
|
#ifdef _XBOX
|
|
&input_xdk360,
|
|
#endif
|
|
#ifdef GEKKO
|
|
&input_wii,
|
|
#endif
|
|
};
|
|
|
|
static void find_audio_driver(void)
|
|
{
|
|
for (unsigned i = 0; i < sizeof(audio_drivers) / sizeof(audio_driver_t*); i++)
|
|
{
|
|
if (strcasecmp(g_settings.audio.driver, audio_drivers[i]->ident) == 0)
|
|
{
|
|
driver.audio = audio_drivers[i];
|
|
return;
|
|
}
|
|
}
|
|
SSNES_ERR("Couldn't find any audio driver named \"%s\"\n", g_settings.audio.driver);
|
|
fprintf(stderr, "Available audio drivers are:\n");
|
|
for (size_t i = 0; i < sizeof(audio_drivers) / sizeof(audio_driver_t*); i++)
|
|
fprintf(stderr, "\t%s\n", audio_drivers[i]->ident);
|
|
|
|
ssnes_fail(1, "find_audio_driver()");
|
|
}
|
|
|
|
static void find_video_driver(void)
|
|
{
|
|
for (unsigned i = 0; i < sizeof(video_drivers) / sizeof(video_driver_t*); i++)
|
|
{
|
|
if (strcasecmp(g_settings.video.driver, video_drivers[i]->ident) == 0)
|
|
{
|
|
driver.video = video_drivers[i];
|
|
return;
|
|
}
|
|
}
|
|
SSNES_ERR("Couldn't find any video driver named \"%s\"\n", g_settings.video.driver);
|
|
fprintf(stderr, "Available video drivers are:\n");
|
|
for (size_t i = 0; i < sizeof(video_drivers) / sizeof(video_driver_t*); i++)
|
|
fprintf(stderr, "\t%s\n", video_drivers[i]->ident);
|
|
|
|
ssnes_fail(1, "find_video_driver()");
|
|
}
|
|
|
|
static void find_input_driver(void)
|
|
{
|
|
for (unsigned i = 0; i < sizeof(input_drivers) / sizeof(input_driver_t*); i++)
|
|
{
|
|
if (strcasecmp(g_settings.input.driver, input_drivers[i]->ident) == 0)
|
|
{
|
|
driver.input = input_drivers[i];
|
|
return;
|
|
}
|
|
}
|
|
SSNES_ERR("Couldn't find any input driver named \"%s\"\n", g_settings.input.driver);
|
|
fprintf(stderr, "Available input drivers are:\n");
|
|
for (size_t i = 0; i < sizeof(input_drivers) / sizeof(input_driver_t*); i++)
|
|
fprintf(stderr, "\t%s\n", input_drivers[i]->ident);
|
|
|
|
ssnes_fail(1, "find_input_driver()");
|
|
}
|
|
|
|
void init_drivers(void)
|
|
{
|
|
init_video_input();
|
|
init_audio();
|
|
}
|
|
|
|
void uninit_drivers(void)
|
|
{
|
|
uninit_audio();
|
|
uninit_video_input();
|
|
}
|
|
|
|
#ifdef HAVE_DYLIB
|
|
static void init_dsp_plugin(void)
|
|
{
|
|
if (!(*g_settings.audio.dsp_plugin))
|
|
return;
|
|
ssnes_dsp_info_t info = {0};
|
|
|
|
g_extern.audio_data.dsp_lib = dylib_load(g_settings.audio.dsp_plugin);
|
|
if (!g_extern.audio_data.dsp_lib)
|
|
{
|
|
SSNES_ERR("Failed to open DSP plugin: \"%s\" ...\n", g_settings.audio.dsp_plugin);
|
|
return;
|
|
}
|
|
|
|
const ssnes_dsp_plugin_t* (SSNES_API_CALLTYPE *plugin_init)(void) =
|
|
(const ssnes_dsp_plugin_t *(SSNES_API_CALLTYPE*)(void))dylib_proc(g_extern.audio_data.dsp_lib, "ssnes_dsp_plugin_init");
|
|
if (!plugin_init)
|
|
{
|
|
SSNES_ERR("Failed to find symbol \"ssnes_dsp_plugin_init\" in DSP plugin.\n");
|
|
goto error;
|
|
}
|
|
|
|
g_extern.audio_data.dsp_plugin = plugin_init();
|
|
if (!g_extern.audio_data.dsp_plugin)
|
|
{
|
|
SSNES_ERR("Failed to get a valid DSP plugin.\n");
|
|
goto error;
|
|
}
|
|
|
|
if (g_extern.audio_data.dsp_plugin->api_version != SSNES_DSP_API_VERSION)
|
|
{
|
|
SSNES_ERR("DSP plugin API mismatch. SSNES: %d, Plugin: %d\n", SSNES_DSP_API_VERSION, g_extern.audio_data.dsp_plugin->api_version);
|
|
goto error;
|
|
}
|
|
|
|
SSNES_LOG("Loaded DSP plugin: \"%s\"\n", g_extern.audio_data.dsp_plugin->ident ? g_extern.audio_data.dsp_plugin->ident : "Unknown");
|
|
|
|
info.input_rate = g_settings.audio.in_rate;
|
|
info.output_rate = g_settings.audio.out_rate;
|
|
|
|
g_extern.audio_data.dsp_handle = g_extern.audio_data.dsp_plugin->init(&info);
|
|
if (!g_extern.audio_data.dsp_handle)
|
|
{
|
|
SSNES_ERR("Failed to init DSP plugin.\n");
|
|
goto error;
|
|
}
|
|
|
|
return;
|
|
|
|
error:
|
|
if (g_extern.audio_data.dsp_lib)
|
|
dylib_close(g_extern.audio_data.dsp_lib);
|
|
g_extern.audio_data.dsp_plugin = NULL;
|
|
g_extern.audio_data.dsp_lib = NULL;
|
|
}
|
|
|
|
static void deinit_dsp_plugin(void)
|
|
{
|
|
if (g_extern.audio_data.dsp_lib && g_extern.audio_data.dsp_plugin)
|
|
{
|
|
g_extern.audio_data.dsp_plugin->free(g_extern.audio_data.dsp_handle);
|
|
dylib_close(g_extern.audio_data.dsp_lib);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void adjust_audio_input_rate(void)
|
|
{
|
|
if (g_extern.system.timing_set)
|
|
{
|
|
float timing_skew = fabs(1.0f - g_extern.system.timing.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.
|
|
{
|
|
SSNES_LOG("Timings deviate too much. Will not adjust. (Display = %.2f Hz, Game = %.2f Hz)\n",
|
|
g_settings.video.refresh_rate,
|
|
(float)g_extern.system.timing.fps);
|
|
|
|
g_settings.video.refresh_rate = g_extern.system.timing.fps;
|
|
}
|
|
}
|
|
|
|
if (g_extern.system.timing_set)
|
|
{
|
|
g_settings.audio.in_rate = g_extern.system.timing.sample_rate *
|
|
(g_settings.video.refresh_rate / g_extern.system.timing.fps);
|
|
}
|
|
else
|
|
{
|
|
g_settings.audio.in_rate = 32040.5 *
|
|
(g_settings.video.refresh_rate / (21477272.0 / 357366.0)); // SNES metrics.
|
|
}
|
|
|
|
SSNES_LOG("Set audio input rate to: %.2f Hz.\n", g_settings.audio.in_rate);
|
|
}
|
|
|
|
void init_audio(void)
|
|
{
|
|
// Accomodate rewind since at some point we might have two full buffers.
|
|
size_t max_bufsamples = AUDIO_CHUNK_SIZE_NONBLOCKING * 2;
|
|
|
|
// Used for recording even if audio isn't enabled.
|
|
ssnes_assert(g_extern.audio_data.conv_outsamples = (int16_t*)malloc(max_bufsamples * sizeof(int16_t) * AUDIO_MAX_RATIO));
|
|
|
|
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.
|
|
ssnes_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;
|
|
}
|
|
|
|
adjust_audio_input_rate();
|
|
find_audio_driver();
|
|
|
|
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)
|
|
g_extern.audio_active = false;
|
|
|
|
if (g_extern.audio_active && driver.audio->use_float && driver.audio->use_float(driver.audio_data))
|
|
g_extern.audio_data.use_float = true;
|
|
|
|
if (!g_settings.audio.sync && g_extern.audio_active)
|
|
{
|
|
driver.audio->set_nonblock_state(driver.audio_data, true);
|
|
g_extern.audio_data.chunk_size = g_extern.audio_data.nonblock_chunk_size;
|
|
}
|
|
|
|
g_extern.audio_data.source = hermite_new();
|
|
if (!g_extern.audio_data.source)
|
|
g_extern.audio_active = false;
|
|
|
|
ssnes_assert(g_extern.audio_data.data = (float*)malloc(max_bufsamples * sizeof(float)));
|
|
g_extern.audio_data.data_ptr = 0;
|
|
|
|
ssnes_assert(g_settings.audio.out_rate < g_settings.audio.in_rate * AUDIO_MAX_RATIO);
|
|
ssnes_assert(g_extern.audio_data.outsamples = (float*)malloc(max_bufsamples * sizeof(float) * AUDIO_MAX_RATIO));
|
|
|
|
g_extern.audio_data.src_ratio =
|
|
(double)g_settings.audio.out_rate / g_settings.audio.in_rate;
|
|
|
|
#ifdef HAVE_DYLIB
|
|
init_dsp_plugin();
|
|
#endif
|
|
}
|
|
|
|
void uninit_audio(void)
|
|
{
|
|
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;
|
|
}
|
|
|
|
if (driver.audio_data && driver.audio)
|
|
driver.audio->free(driver.audio_data);
|
|
|
|
if (g_extern.audio_data.source)
|
|
hermite_free(g_extern.audio_data.source);
|
|
|
|
free(g_extern.audio_data.data);
|
|
g_extern.audio_data.data = NULL;
|
|
|
|
free(g_extern.audio_data.outsamples);
|
|
g_extern.audio_data.outsamples = NULL;
|
|
|
|
#ifdef HAVE_DYLIB
|
|
deinit_dsp_plugin();
|
|
#endif
|
|
}
|
|
|
|
#ifdef HAVE_DYLIB
|
|
static void init_filter(void)
|
|
{
|
|
if (g_extern.filter.active)
|
|
return;
|
|
if (*g_settings.video.filter_path == '\0')
|
|
return;
|
|
|
|
SSNES_LOG("Loading bSNES filter from \"%s\"\n", g_settings.video.filter_path);
|
|
g_extern.filter.lib = dylib_load(g_settings.video.filter_path);
|
|
if (!g_extern.filter.lib)
|
|
{
|
|
SSNES_ERR("Failed to load filter \"%s\"\n", g_settings.video.filter_path);
|
|
return;
|
|
}
|
|
|
|
g_extern.filter.psize =
|
|
(void (*)(unsigned*, unsigned*))dylib_proc(g_extern.filter.lib, "filter_size");
|
|
g_extern.filter.prender =
|
|
(void (*)(uint32_t*, uint32_t*,
|
|
unsigned, const uint16_t*,
|
|
unsigned, unsigned, unsigned))dylib_proc(g_extern.filter.lib, "filter_render");
|
|
if (!g_extern.filter.psize || !g_extern.filter.prender)
|
|
{
|
|
SSNES_ERR("Failed to find functions in filter...\n");
|
|
dylib_close(g_extern.filter.lib);
|
|
g_extern.filter.lib = NULL;
|
|
return;
|
|
}
|
|
|
|
g_extern.filter.active = true;
|
|
|
|
unsigned width = g_extern.system.geom.max_width;
|
|
unsigned height = g_extern.system.geom.max_height;
|
|
g_extern.filter.psize(&width, &height);
|
|
|
|
unsigned pow2_x = next_pow2(width);
|
|
unsigned pow2_y = next_pow2(height);
|
|
unsigned maxsize = pow2_x > pow2_y ? pow2_x : pow2_y;
|
|
g_extern.filter.scale = maxsize / SSNES_SCALE_BASE;
|
|
|
|
g_extern.filter.buffer = (uint32_t*)malloc(SSNES_SCALE_BASE * SSNES_SCALE_BASE * g_extern.filter.scale * g_extern.filter.scale * sizeof(uint32_t));
|
|
g_extern.filter.pitch = SSNES_SCALE_BASE * g_extern.filter.scale * sizeof(uint32_t);
|
|
ssnes_assert(g_extern.filter.buffer);
|
|
|
|
g_extern.filter.colormap = (uint32_t*)malloc(32768 * sizeof(uint32_t));
|
|
ssnes_assert(g_extern.filter.colormap);
|
|
|
|
// Set up conversion map from 16-bit XRGB1555 to 32-bit ARGB.
|
|
for (int i = 0; i < 32768; i++)
|
|
{
|
|
unsigned r = (i >> 10) & 31;
|
|
unsigned g = (i >> 5) & 31;
|
|
unsigned b = (i >> 0) & 31;
|
|
|
|
r = (r << 3) | (r >> 2);
|
|
g = (g << 3) | (g >> 2);
|
|
b = (b << 3) | (b >> 2);
|
|
g_extern.filter.colormap[i] = (r << 16) | (g << 8) | (b << 0);
|
|
}
|
|
}
|
|
|
|
static void deinit_filter(void)
|
|
{
|
|
if (g_extern.filter.active)
|
|
{
|
|
g_extern.filter.active = false;
|
|
dylib_close(g_extern.filter.lib);
|
|
g_extern.filter.lib = NULL;
|
|
free(g_extern.filter.buffer);
|
|
free(g_extern.filter.colormap);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_XML
|
|
static void init_shader_dir(void)
|
|
{
|
|
if (!*g_settings.video.shader_dir)
|
|
return;
|
|
|
|
g_extern.shader_dir.elems = dir_list_new(g_settings.video.shader_dir, ".shader");
|
|
g_extern.shader_dir.size = 0;
|
|
g_extern.shader_dir.ptr = 0;
|
|
if (g_extern.shader_dir.elems)
|
|
{
|
|
while (g_extern.shader_dir.elems[g_extern.shader_dir.size])
|
|
{
|
|
SSNES_LOG("Found shader \"%s\"\n", g_extern.shader_dir.elems[g_extern.shader_dir.size]);
|
|
g_extern.shader_dir.size++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void deinit_shader_dir(void)
|
|
{
|
|
// It handles NULL, no worries :D
|
|
dir_list_free(g_extern.shader_dir.elems);
|
|
g_extern.shader_dir.elems = NULL;
|
|
g_extern.shader_dir.size = 0;
|
|
g_extern.shader_dir.ptr = 0;
|
|
}
|
|
#endif
|
|
|
|
void init_video_input(void)
|
|
{
|
|
#ifdef HAVE_DYLIB
|
|
init_filter();
|
|
#endif
|
|
|
|
#ifdef HAVE_XML
|
|
init_shader_dir();
|
|
#endif
|
|
|
|
unsigned max_dim = max(g_extern.system.geom.max_width, g_extern.system.geom.max_height);
|
|
unsigned scale = max_dim / SSNES_SCALE_BASE;
|
|
scale = max(scale, 1);
|
|
|
|
find_video_driver();
|
|
find_input_driver();
|
|
|
|
if (g_extern.filter.active)
|
|
scale = g_extern.filter.scale;
|
|
|
|
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 && (g_settings.video.aspect_ratio > 0.0f))
|
|
{
|
|
width = roundf(g_extern.system.geom.base_height * g_settings.video.xscale * g_settings.video.aspect_ratio);
|
|
height = roundf(g_extern.system.geom.base_height * g_settings.video.yscale);
|
|
}
|
|
else
|
|
{
|
|
width = roundf(g_extern.system.geom.base_width * g_settings.video.xscale);
|
|
height = roundf(g_extern.system.geom.base_height * g_settings.video.yscale);
|
|
}
|
|
}
|
|
|
|
if (g_settings.video.aspect_ratio < 0.0f)
|
|
{
|
|
g_settings.video.aspect_ratio = (float)g_extern.system.geom.base_width / g_extern.system.geom.base_height;
|
|
SSNES_LOG("Adjusting aspect ratio to %.2f\n", g_settings.video.aspect_ratio);
|
|
}
|
|
|
|
SSNES_LOG("Video @ %ux%u\n", width, height);
|
|
|
|
video_info_t video = {0};
|
|
video.width = width;
|
|
video.height = height;
|
|
video.fullscreen = g_settings.video.fullscreen;
|
|
video.vsync = g_settings.video.vsync;
|
|
video.force_aspect = g_settings.video.force_aspect;
|
|
video.smooth = g_settings.video.smooth;
|
|
video.input_scale = scale;
|
|
video.rgb32 = g_extern.filter.active;
|
|
|
|
const input_driver_t *tmp = driver.input;
|
|
driver.video_data = driver.video->init(&video, &driver.input, &driver.input_data);
|
|
|
|
if (driver.video_data == NULL)
|
|
{
|
|
SSNES_ERR("Cannot open video driver ... Exiting ...\n");
|
|
ssnes_fail(1, "init_video_input()");
|
|
}
|
|
|
|
// Video driver didn't provide an input driver so we use configured one.
|
|
if (driver.input == NULL)
|
|
{
|
|
driver.input = tmp;
|
|
if (driver.input != NULL)
|
|
{
|
|
driver.input_data = driver.input->init();
|
|
if (driver.input_data == NULL)
|
|
{
|
|
SSNES_ERR("Cannot init input driver. Exiting ...\n");
|
|
ssnes_fail(1, "init_video_input()");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SSNES_ERR("Cannot find input driver. Exiting ...\n");
|
|
ssnes_fail(1, "init_video_input()");
|
|
}
|
|
}
|
|
}
|
|
|
|
void uninit_video_input(void)
|
|
{
|
|
if (driver.input_data != driver.video_data && driver.input)
|
|
driver.input->free(driver.input_data);
|
|
|
|
if (driver.video_data && driver.video)
|
|
driver.video->free(driver.video_data);
|
|
|
|
#ifdef HAVE_DYLIB
|
|
deinit_filter();
|
|
#endif
|
|
|
|
#ifdef HAVE_XML
|
|
deinit_shader_dir();
|
|
#endif
|
|
}
|
|
|
|
driver_t driver;
|
|
|