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retroarch.c
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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
*
* 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 "boolean.h"
#include "libretro.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "driver.h"
#include "file.h"
#include "general.h"
#include "dynamic.h"
#include "performance.h"
#include "audio/utils.h"
#include "record/ffemu.h"
#include "rewind.h"
#include "movie.h"
#include "compat/strl.h"
#include "screenshot.h"
#include "cheats.h"
#include "compat/getopt_rarch.h"
#include "compat/posix_string.h"
#ifdef _WIN32
#ifdef _XBOX
#include <xtl.h>
#else
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
#include "msvc/msvc_compat.h"
#endif
#if defined(RARCH_CONSOLE) && !defined(RARCH_PERFORMANCE_MODE)
#define RARCH_PERFORMANCE_MODE
#endif
// To avoid continous switching if we hold the button down, we require that the button must go from pressed,
// unpressed back to pressed to be able to toggle between then.
static void check_fast_forward_button(void)
{
bool new_button_state = input_key_pressed_func(RARCH_FAST_FORWARD_KEY);
bool new_hold_button_state = input_key_pressed_func(RARCH_FAST_FORWARD_HOLD_KEY);
static bool old_button_state = false;
static bool old_hold_button_state = false;
if (new_button_state && !old_button_state)
{
driver.nonblock_state = !driver.nonblock_state;
driver_set_nonblock_state(driver.nonblock_state);
}
else if (old_hold_button_state != new_hold_button_state)
{
driver.nonblock_state = new_hold_button_state;
driver_set_nonblock_state(driver.nonblock_state);
}
old_button_state = new_button_state;
old_hold_button_state = new_hold_button_state;
}
#if defined(HAVE_SCREENSHOTS) && !defined(_XBOX)
static bool take_screenshot_viewport(void)
{
struct rarch_viewport vp = {0};
video_viewport_info_func(&vp);
if (!vp.width || !vp.height)
return false;
uint8_t *buffer = (uint8_t*)malloc(vp.width * vp.height * 3);
if (!buffer)
return false;
if (!video_read_viewport_func(buffer))
{
free(buffer);
return false;
}
// Data read from viewport is in bottom-up order, suitable for BMP.
if (!screenshot_dump(g_settings.screenshot_directory,
buffer,
vp.width, vp.height, vp.width * 3, true))
{
free(buffer);
return false;
}
free(buffer);
return true;
}
static bool take_screenshot_raw(void)
{
const void *data = g_extern.frame_cache.data;
unsigned width = g_extern.frame_cache.width;
unsigned height = g_extern.frame_cache.height;
int pitch = g_extern.frame_cache.pitch;
// Negative pitch is needed as screenshot takes bottom-up,
// but we use top-down.
return screenshot_dump(g_settings.screenshot_directory,
(const uint8_t*)data + (height - 1) * pitch,
width, height, -pitch, false);
}
void rarch_take_screenshot(void)
{
if (!(*g_settings.screenshot_directory))
return;
bool ret = false;
if ((g_settings.video.gpu_screenshot ||
g_extern.system.hw_render_callback.context_type != RETRO_HW_CONTEXT_NONE) &&
driver.video->read_viewport &&
driver.video->viewport_info)
ret = take_screenshot_viewport();
else if (g_extern.frame_cache.data && (g_extern.frame_cache.data != RETRO_HW_FRAME_BUFFER_VALID))
ret = take_screenshot_raw();
else
RARCH_ERR("Cannot take screenshot. GPU rendering is used and read_viewport is not supported.\n");
const char *msg = NULL;
if (ret)
{
RARCH_LOG("Taking screenshot.\n");
msg = "Taking screenshot.";
}
else
{
RARCH_WARN("Failed to take screenshot ...\n");
msg = "Failed to take screenshot.";
}
msg_queue_clear(g_extern.msg_queue);
if (g_extern.is_paused)
{
msg_queue_push(g_extern.msg_queue, msg, 1, 1);
rarch_render_cached_frame();
}
else
msg_queue_push(g_extern.msg_queue, msg, 1, 180);
}
#endif
static void readjust_audio_input_rate(void)
{
int avail = audio_write_avail_func();
//RARCH_LOG_OUTPUT("Audio buffer is %u%% full\n",
// (unsigned)(100 - (avail * 100) / g_extern.audio_data.driver_buffer_size));
unsigned write_index = g_extern.measure_data.buffer_free_samples_count++ & (AUDIO_BUFFER_FREE_SAMPLES_COUNT - 1);
g_extern.measure_data.buffer_free_samples[write_index] = avail;
int half_size = g_extern.audio_data.driver_buffer_size / 2;
int delta_mid = avail - half_size;
double direction = (double)delta_mid / half_size;
double adjust = 1.0 + g_settings.audio.rate_control_delta * direction;
g_extern.audio_data.src_ratio = g_extern.audio_data.orig_src_ratio * adjust;
//RARCH_LOG_OUTPUT("New rate: %lf, Orig rate: %lf\n",
// g_extern.audio_data.src_ratio, g_extern.audio_data.orig_src_ratio);
}
#ifdef HAVE_FFMPEG
static void deinit_recording(void);
static void recording_dump_frame(const void *data, unsigned width, unsigned height, size_t pitch)
{
struct ffemu_video_data ffemu_data = {0};
if (g_extern.record_gpu_buffer)
{
struct rarch_viewport vp = {0};
video_viewport_info_func(&vp);
if (!vp.width || !vp.height)
{
RARCH_WARN("Viewport size calculation failed! Will continue using raw data. This will probably not work right ...\n");
free(g_extern.record_gpu_buffer);
g_extern.record_gpu_buffer = NULL;
recording_dump_frame(data, width, height, pitch);
return;
}
// User has resized. We're kinda fucked now.
if (vp.width != g_extern.record_gpu_width || vp.height != g_extern.record_gpu_height)
{
static const char msg[] = "Recording terminated due to resize.";
RARCH_WARN("%s\n", msg);
msg_queue_clear(g_extern.msg_queue);
msg_queue_push(g_extern.msg_queue, msg, 1, 180);
deinit_recording();
g_extern.recording = false;
return;
}
// Big bottleneck.
// Since we might need to do read-backs asynchronously, it might take 3-4 times
// before this returns true ...
if (!video_read_viewport_func(g_extern.record_gpu_buffer))
return;
ffemu_data.pitch = g_extern.record_gpu_width * 3;
ffemu_data.width = g_extern.record_gpu_width;
ffemu_data.height = g_extern.record_gpu_height;
ffemu_data.data = g_extern.record_gpu_buffer + (ffemu_data.height - 1) * ffemu_data.pitch;
ffemu_data.pitch = -ffemu_data.pitch;
}
else
{
ffemu_data.data = data;
ffemu_data.pitch = pitch;
ffemu_data.width = width;
ffemu_data.height = height;
ffemu_data.is_dupe = !data;
}
ffemu_push_video(g_extern.rec, &ffemu_data);
}
#endif
static void video_frame(const void *data, unsigned width, unsigned height, size_t pitch)
{
if (!g_extern.video_active)
return;
g_extern.frame_cache.data = data;
g_extern.frame_cache.width = width;
g_extern.frame_cache.height = height;
g_extern.frame_cache.pitch = pitch;
if (g_extern.system.pix_fmt == RETRO_PIXEL_FORMAT_0RGB1555 && data && data != RETRO_HW_FRAME_BUFFER_VALID)
{
RARCH_PERFORMANCE_INIT(video_frame_conv);
RARCH_PERFORMANCE_START(video_frame_conv);
driver.scaler.in_width = width;
driver.scaler.in_height = height;
driver.scaler.out_width = width;
driver.scaler.out_height = height;
driver.scaler.in_stride = pitch;
driver.scaler.out_stride = width * sizeof(uint16_t);
scaler_ctx_scale(&driver.scaler, driver.scaler_out, data);
data = driver.scaler_out;
pitch = driver.scaler.out_stride;
RARCH_PERFORMANCE_STOP(video_frame_conv);
}
// Slightly messy code,
// but we really need to do processing before blocking on VSync for best possible scheduling.
#ifdef HAVE_FFMPEG
if (g_extern.recording && (!g_extern.filter.active || !g_settings.video.post_filter_record || !data || g_extern.record_gpu_buffer))
recording_dump_frame(data, width, height, pitch);
#endif
const char *msg = msg_queue_pull(g_extern.msg_queue);
driver.current_msg = msg;
#ifdef HAVE_DYLIB
if (g_extern.filter.active && data)
{
struct scaler_ctx *scaler = &g_extern.filter.scaler;
scaler->in_width = scaler->out_width = width;
scaler->in_height = scaler->out_height = height;
scaler->in_stride = pitch;
scaler->out_stride = width * sizeof(uint16_t);
scaler_ctx_scale(scaler, g_extern.filter.scaler_out, data);
unsigned owidth = width;
unsigned oheight = height;
g_extern.filter.psize(&owidth, &oheight);
g_extern.filter.prender(g_extern.filter.colormap, g_extern.filter.buffer,
g_extern.filter.pitch, g_extern.filter.scaler_out, scaler->out_stride, width, height);
#ifdef HAVE_FFMPEG
if (g_extern.recording && g_settings.video.post_filter_record)
recording_dump_frame(g_extern.filter.buffer, owidth, oheight, g_extern.filter.pitch);
#endif
if (!video_frame_func(g_extern.filter.buffer, owidth, oheight, g_extern.filter.pitch, msg))
g_extern.video_active = false;
}
else if (!video_frame_func(data, width, height, pitch, msg))
g_extern.video_active = false;
#else
if (!video_frame_func(data, width, height, pitch, msg))
g_extern.video_active = false;
#endif
}
void rarch_render_cached_frame(void)
{
#ifdef HAVE_FFMPEG
// Cannot allow FFmpeg recording when pushing duped frames.
bool recording = g_extern.recording;
g_extern.recording = false;
#endif
const void *frame = g_extern.frame_cache.data;
if (frame == RETRO_HW_FRAME_BUFFER_VALID)
frame = NULL; // Dupe
// Not 100% safe, since the library might have
// freed the memory, but no known implementations do this :D
// It would be really stupid at any rate ...
video_frame(frame,
g_extern.frame_cache.width,
g_extern.frame_cache.height,
g_extern.frame_cache.pitch);
#ifdef HAVE_FFMPEG
g_extern.recording = recording;
#endif
}
static bool audio_flush(const int16_t *data, size_t samples)
{
#ifdef HAVE_FFMPEG
if (g_extern.recording)
{
struct ffemu_audio_data ffemu_data = {0};
ffemu_data.data = data;
ffemu_data.frames = samples / 2;
ffemu_push_audio(g_extern.rec, &ffemu_data);
}
#endif
if (g_extern.is_paused || g_extern.audio_data.mute)
return true;
if (!g_extern.audio_active)
return false;
const float *output_data = NULL;
unsigned output_frames = 0;
struct resampler_data src_data = {0};
RARCH_PERFORMANCE_INIT(audio_convert_s16);
RARCH_PERFORMANCE_START(audio_convert_s16);
audio_convert_s16_to_float(g_extern.audio_data.data, data, samples,
g_extern.audio_data.volume_gain);
RARCH_PERFORMANCE_STOP(audio_convert_s16);
#if defined(HAVE_DYLIB)
rarch_dsp_output_t dsp_output = {0};
rarch_dsp_input_t dsp_input = {0};
dsp_input.samples = g_extern.audio_data.data;
dsp_input.frames = samples >> 1;
if (g_extern.audio_data.dsp_plugin)
g_extern.audio_data.dsp_plugin->process(g_extern.audio_data.dsp_handle, &dsp_output, &dsp_input);
src_data.data_in = dsp_output.samples ? dsp_output.samples : g_extern.audio_data.data;
src_data.input_frames = dsp_output.samples ? dsp_output.frames : (samples >> 1);
#else
src_data.data_in = g_extern.audio_data.data;
src_data.input_frames = samples >> 1;
#endif
src_data.data_out = g_extern.audio_data.outsamples;
if (g_extern.audio_data.rate_control)
readjust_audio_input_rate();
src_data.ratio = g_extern.audio_data.src_ratio;
if (g_extern.is_slowmotion)
src_data.ratio *= g_settings.slowmotion_ratio;
RARCH_PERFORMANCE_INIT(resampler_proc);
RARCH_PERFORMANCE_START(resampler_proc);
rarch_resampler_process(g_extern.audio_data.resampler,
g_extern.audio_data.resampler_data, &src_data);
RARCH_PERFORMANCE_STOP(resampler_proc);
output_data = g_extern.audio_data.outsamples;
output_frames = src_data.output_frames;
if (g_extern.audio_data.use_float)
{
if (audio_write_func(output_data, output_frames * sizeof(float) * 2) < 0)
{
RARCH_ERR("Audio backend failed to write. Will continue without sound.\n");
return false;
}
}
else
{
RARCH_PERFORMANCE_INIT(audio_convert_float);
RARCH_PERFORMANCE_START(audio_convert_float);
audio_convert_float_to_s16(g_extern.audio_data.conv_outsamples,
output_data, output_frames * 2);
RARCH_PERFORMANCE_STOP(audio_convert_float);
if (audio_write_func(g_extern.audio_data.conv_outsamples, output_frames * sizeof(int16_t) * 2) < 0)
{
RARCH_ERR("Audio backend failed to write. Will continue without sound.\n");
return false;
}
}
return true;
}
static void audio_sample_rewind(int16_t left, int16_t right)
{
g_extern.audio_data.rewind_buf[--g_extern.audio_data.rewind_ptr] = right;
g_extern.audio_data.rewind_buf[--g_extern.audio_data.rewind_ptr] = left;
}
size_t audio_sample_batch_rewind(const int16_t *data, size_t frames)
{
size_t samples = frames << 1;
for (size_t i = 0; i < samples; i++)
g_extern.audio_data.rewind_buf[--g_extern.audio_data.rewind_ptr] = data[i];
return frames;
}
static void audio_sample(int16_t left, int16_t right)
{
g_extern.audio_data.conv_outsamples[g_extern.audio_data.data_ptr++] = left;
g_extern.audio_data.conv_outsamples[g_extern.audio_data.data_ptr++] = right;
if (g_extern.audio_data.data_ptr < g_extern.audio_data.chunk_size)
return;
g_extern.audio_active = audio_flush(g_extern.audio_data.conv_outsamples,
g_extern.audio_data.data_ptr) && g_extern.audio_active;
g_extern.audio_data.data_ptr = 0;
}
size_t audio_sample_batch(const int16_t *data, size_t frames)
{
if (frames > (AUDIO_CHUNK_SIZE_NONBLOCKING >> 1))
frames = AUDIO_CHUNK_SIZE_NONBLOCKING >> 1;
g_extern.audio_active = audio_flush(data, frames << 1) && g_extern.audio_active;
return frames;
}
#ifdef HAVE_OVERLAY
static inline void input_poll_overlay(void)
{
driver.overlay_state = 0;
unsigned device = input_overlay_full_screen(driver.overlay) ?
RARCH_DEVICE_POINTER_SCREEN : RETRO_DEVICE_POINTER;
bool polled = false;
for (unsigned i = 0;
input_input_state_func(NULL, 0, device, i, RETRO_DEVICE_ID_POINTER_PRESSED);
i++)
{
int16_t x = input_input_state_func(NULL, 0,
device, i, RETRO_DEVICE_ID_POINTER_X);
int16_t y = input_input_state_func(NULL, 0,
device, i, RETRO_DEVICE_ID_POINTER_Y);
driver.overlay_state |= input_overlay_poll(driver.overlay, x, y);
polled = true;
}
if (!polled)
input_overlay_poll_clear(driver.overlay);
}
#endif
void rarch_input_poll(void)
{
input_poll_func();
#ifdef HAVE_OVERLAY
if (driver.overlay) // Poll overlay state
input_poll_overlay();
#endif
}
// Turbo scheme: If turbo button is held, all buttons pressed except for D-pad will go into
// a turbo mode. Until the button is released again, the input state will be modulated by a periodic pulse defined
// by the configured duty cycle.
static bool input_apply_turbo(unsigned port, unsigned id, bool res)
{
if (res && g_extern.turbo_frame_enable[port])
g_extern.turbo_enable[port] |= (1 << id);
else if (!res)
g_extern.turbo_enable[port] &= ~(1 << id);
if (g_extern.turbo_enable[port] & (1 << id))
return res & ((g_extern.turbo_count % g_settings.input.turbo_period) < g_settings.input.turbo_duty_cycle);
else
return res;
}
static int16_t input_state(unsigned port, unsigned device, unsigned index, unsigned id)
{
device &= RETRO_DEVICE_MASK;
#ifdef HAVE_BSV_MOVIE
if (g_extern.bsv.movie && g_extern.bsv.movie_playback)
{
int16_t ret;
if (bsv_movie_get_input(g_extern.bsv.movie, &ret))
return ret;
else
g_extern.bsv.movie_end = true;
}
#endif
static const struct retro_keybind *binds[MAX_PLAYERS] = {
g_settings.input.binds[0],
g_settings.input.binds[1],
g_settings.input.binds[2],
g_settings.input.binds[3],
g_settings.input.binds[4],
g_settings.input.binds[5],
g_settings.input.binds[6],
g_settings.input.binds[7],
};
int16_t res = 0;
if (id < RARCH_FIRST_META_KEY || device == RETRO_DEVICE_KEYBOARD)
res = input_input_state_func(binds, port, device, index, id);
#ifdef HAVE_OVERLAY
if (device == RETRO_DEVICE_JOYPAD && port == 0)
res |= driver.overlay_state & (UINT64_C(1) << id) ? 1 : 0;
#endif
// Don't allow turbo for D-pad.
if (device == RETRO_DEVICE_JOYPAD && (id < RETRO_DEVICE_ID_JOYPAD_UP || id > RETRO_DEVICE_ID_JOYPAD_RIGHT))
res = input_apply_turbo(port, id, res);
#ifdef HAVE_BSV_MOVIE
if (g_extern.bsv.movie && !g_extern.bsv.movie_playback)
bsv_movie_set_input(g_extern.bsv.movie, res);
#endif
return res;
}
#ifdef _WIN32
#define RARCH_DEFAULT_CONF_PATH_STR "\n\t\tDefaults to retroarch.cfg in same directory as retroarch.exe."
#else
#define RARCH_DEFAULT_CONF_PATH_STR "\n\t\tBy default looks for config in $XDG_CONFIG_HOME/retroarch/retroarch.cfg,\n\t\t$HOME/.config/retroarch/retroarch.cfg,\n\t\tand $HOME/.retroarch.cfg."
#endif
#include "config.features.h"
#define _PSUPP(var, name, desc) printf("\t%s:\n\t\t%s: %s\n", name, desc, _##var##_supp ? "yes" : "no")
static void print_features(void)
{
puts("");
puts("Features:");
_PSUPP(sdl, "SDL", "SDL drivers");
_PSUPP(thread, "Threads", "Threading support");
_PSUPP(opengl, "OpenGL", "OpenGL driver");
_PSUPP(kms, "KMS", "KMS/EGL context support");
_PSUPP(egl, "EGL", "EGL context support");
_PSUPP(vg, "OpenVG", "OpenVG output support");
_PSUPP(xvideo, "XVideo", "XVideo output");
_PSUPP(alsa, "ALSA", "audio driver");
_PSUPP(oss, "OSS", "audio driver");
_PSUPP(jack, "Jack", "audio driver");
_PSUPP(rsound, "RSound", "audio driver");
_PSUPP(roar, "RoarAudio", "audio driver");
_PSUPP(pulse, "PulseAudio", "audio driver");
_PSUPP(dsound, "DirectSound", "audio driver");
_PSUPP(xaudio, "XAudio2", "audio driver");
_PSUPP(zlib, "zlib", "PNG encode/decode and .zip extraction");
_PSUPP(al, "OpenAL", "audio driver");
_PSUPP(dylib, "External", "External filter and plugin support");
_PSUPP(cg, "Cg", "Cg pixel shaders");
_PSUPP(libxml2, "libxml2", "libxml2 XML parsing");
_PSUPP(sdl_image, "SDL_image", "SDL_image image loading");
_PSUPP(fbo, "FBO", "OpenGL render-to-texture (multi-pass shaders)");
_PSUPP(dynamic, "Dynamic", "Dynamic run-time loading of libretro library");
_PSUPP(ffmpeg, "FFmpeg", "On-the-fly recording of gameplay with libavcodec");
_PSUPP(freetype, "FreeType", "TTF font rendering with FreeType");
_PSUPP(netplay, "Netplay", "Peer-to-peer netplay");
_PSUPP(python, "Python", "Script support in shaders");
}
#undef _PSUPP
static void print_compiler(FILE *file)
{
fprintf(file, "\nCompiler: ");
#if defined(_MSC_VER)
fprintf(file, "MSVC (%d) %u-bit\n", _MSC_VER, (unsigned)(CHAR_BIT * sizeof(size_t)));
#elif defined(__SNC__)
fprintf(file, "SNC (%d) %u-bit\n",
__SN_VER__, (unsigned)(CHAR_BIT * sizeof(size_t)));
#elif defined(_WIN32) && defined(__GNUC__)
fprintf(file, "MinGW (%d.%d.%d) %u-bit\n",
__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__, (unsigned)(CHAR_BIT * sizeof(size_t)));
#elif defined(__clang__)
fprintf(file, "Clang/LLVM (%s) %u-bit\n",
__VERSION__, (unsigned)(CHAR_BIT * sizeof(size_t)));
#elif defined(__GNUC__)
fprintf(file, "GCC (%d.%d.%d) %u-bit\n",
__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__, (unsigned)(CHAR_BIT * sizeof(size_t)));
#else
fprintf(file, "Unknown compiler %u-bit\n",
(unsigned)(CHAR_BIT * sizeof(size_t)));
#endif
fprintf(file, "Built: %s\n", __DATE__);
}
static void print_help(void)
{
puts("===================================================================");
#if !defined(__BLACKBERRY_QNX__) && !defined(IOS)
/* To get around error 'too many decimal points in number - expected ')' before numeric constant */
puts("RetroArch: Frontend for libretro -- v" PACKAGE_VERSION " --");
#endif
print_compiler(stdout);
puts("===================================================================");
puts("Usage: retroarch [rom file] [options...]");
puts("\t-h/--help: Show this help message.");
puts("\t--menu: Do not require ROM or libretro core to be loaded, starts directly in menu.");
puts("\t\tIf no arguments are passed to RetroArch, it is equivalent to using --menu as only argument.");
puts("\t--features: Prints available features compiled into RetroArch.");
puts("\t-s/--save: Path for save file (*.srm).");
puts("\t-f/--fullscreen: Start RetroArch in fullscreen regardless of config settings.");
puts("\t-S/--savestate: Path to use for save states. If not selected, *.state will be assumed.");
puts("\t-c/--config: Path for config file." RARCH_DEFAULT_CONF_PATH_STR);
puts("\t--appendconfig: Extra config files are loaded in, and take priority over config selected in -c (or default).");
puts("\t\tMultiple configs are delimited by ','.");
#ifdef HAVE_DYNAMIC
puts("\t-L/--libretro: Path to libretro implementation. Overrides any config setting.");
#endif
puts("\t-g/--gameboy: Path to Gameboy ROM. Load SuperGameBoy as the regular rom.");
puts("\t-b/--bsx: Path to BSX rom. Load BSX BIOS as the regular rom.");
puts("\t-B/--bsxslot: Path to BSX slotted rom. Load BSX BIOS as the regular rom.");
puts("\t--sufamiA: Path to A slot of Sufami Turbo. Load Sufami base cart as regular rom.");
puts("\t--sufamiB: Path to B slot of Sufami Turbo.");
printf("\t-N/--nodevice: Disconnects controller device connected to port (1 to %d).\n", MAX_PLAYERS);
printf("\t-A/--dualanalog: Connect a DualAnalog controller to port (1 to %d).\n", MAX_PLAYERS);
printf("\t-m/--mouse: Connect a mouse into port of the device (1 to %d).\n", MAX_PLAYERS);
puts("\t-p/--scope: Connect a virtual SuperScope into port 2. (SNES specific).");
puts("\t-j/--justifier: Connect a virtual Konami Justifier into port 2. (SNES specific).");
puts("\t-J/--justifiers: Daisy chain two virtual Konami Justifiers into port 2. (SNES specific).");
puts("\t-4/--multitap: Connect a SNES multitap to port 2. (SNES specific).");
#ifdef HAVE_BSV_MOVIE
puts("\t-P/--bsvplay: Playback a BSV movie file.");
puts("\t-R/--bsvrecord: Start recording a BSV movie file from the beginning.");
puts("\t-M/--sram-mode: Takes an argument telling how SRAM should be handled in the session.");
#endif
puts("\t\t{no,}load-{no,}save describes if SRAM should be loaded, and if SRAM should be saved.");
puts("\t\tDo note that noload-save implies that save files will be deleted and overwritten.");
#ifdef HAVE_NETPLAY
puts("\t-H/--host: Host netplay as player 1.");
puts("\t-C/--connect: Connect to netplay as player 2.");
puts("\t--port: Port used to netplay. Default is 55435.");
puts("\t-F/--frames: Sync frames when using netplay.");
puts("\t--spectate: Netplay will become spectating mode.");
puts("\t\tHost can live stream the game content to players that connect.");
puts("\t\tHowever, the client will not be able to play. Multiple clients can connect to the host.");
puts("\t--nick: Picks a nickname for use with netplay. Not mandatory.");
#endif
#ifdef HAVE_NETWORK_CMD
puts("\t--command: Sends a command over UDP to an already running RetroArch process.");
puts("\t\tAvailable commands are listed if command is invalid.");
#endif
#ifdef HAVE_FFMPEG
puts("\t-r/--record: Path to record video file.\n\t\tUsing .mkv extension is recommended.");
puts("\t--recordconfig: Path to settings used during recording.");
puts("\t--size: Overrides output video size when recording with FFmpeg (format: WIDTHxHEIGHT).");
#endif
puts("\t-v/--verbose: Verbose logging.");
puts("\t-U/--ups: Specifies path for UPS patch that will be applied to ROM.");
puts("\t--bps: Specifies path for BPS patch that will be applied to ROM.");
puts("\t--ips: Specifies path for IPS patch that will be applied to ROM.");
puts("\t--no-patch: Disables all forms of rom patching.");
puts("\t-X/--xml: Specifies path to XML memory map.");
puts("\t-D/--detach: Detach RetroArch from the running console. Not relevant for all platforms.\n");
}
static void set_basename(const char *path)
{
strlcpy(g_extern.fullpath, path, sizeof(g_extern.fullpath));
strlcpy(g_extern.basename, path, sizeof(g_extern.basename));
char *dst = strrchr(g_extern.basename, '.');
if (dst)
*dst = '\0';
}
static void set_paths(const char *path)
{
set_basename(path);
if (!g_extern.has_set_save_path)
fill_pathname_noext(g_extern.savefile_name_srm, g_extern.basename, ".srm", sizeof(g_extern.savefile_name_srm));
if (!g_extern.has_set_state_path)
fill_pathname_noext(g_extern.savestate_name, g_extern.basename, ".state", sizeof(g_extern.savestate_name));
if (path_is_directory(g_extern.savefile_name_srm))
{
fill_pathname_dir(g_extern.savefile_name_srm, g_extern.basename, ".srm", sizeof(g_extern.savefile_name_srm));
RARCH_LOG("Redirecting save file to \"%s\".\n", g_extern.savefile_name_srm);
}
if (path_is_directory(g_extern.savestate_name))
{
fill_pathname_dir(g_extern.savestate_name, g_extern.basename, ".state", sizeof(g_extern.savestate_name));
RARCH_LOG("Redirecting save state to \"%s\".\n", g_extern.savestate_name);
}
// If this is already set,
// do not overwrite it as this was initialized before in a menu or otherwise.
if (!*g_settings.system_directory)
fill_pathname_basedir(g_settings.system_directory, path, sizeof(g_settings.system_directory));
if (*g_extern.config_path && path_is_directory(g_extern.config_path))
{
fill_pathname_dir(g_extern.config_path, g_extern.basename, ".cfg", sizeof(g_extern.config_path));
RARCH_LOG("Redirecting config file to \"%s\".\n", g_extern.config_path);
if (!path_file_exists(g_extern.config_path))
{
*g_extern.config_path = '\0';
RARCH_LOG("Did not find config file. Using system default.\n");
}
}
}
static void parse_input(int argc, char *argv[])
{
g_extern.libretro_no_rom = false;
g_extern.libretro_dummy = false;
g_extern.has_set_save_path = false;
g_extern.has_set_state_path = false;
if (argc < 2)
{
g_extern.libretro_dummy = true;
return;
}
// Make sure we can call parse_input several times ...
optind = 0;
int val = 0;
const struct option opts[] = {
#ifdef HAVE_DYNAMIC
{ "libretro", 1, NULL, 'L' },
#endif
{ "menu", 0, &val, 'M' },
{ "help", 0, NULL, 'h' },
{ "save", 1, NULL, 's' },
{ "fullscreen", 0, NULL, 'f' },
#ifdef HAVE_FFMPEG
{ "record", 1, NULL, 'r' },
{ "recordconfig", 1, &val, 'R' },
{ "size", 1, &val, 's' },
#endif
{ "verbose", 0, NULL, 'v' },
{ "gameboy", 1, NULL, 'g' },
{ "config", 1, NULL, 'c' },
{ "appendconfig", 1, &val, 'C' },
{ "mouse", 1, NULL, 'm' },
{ "nodevice", 1, NULL, 'N' },
{ "scope", 0, NULL, 'p' },
{ "justifier", 0, NULL, 'j' },
{ "justifiers", 0, NULL, 'J' },
{ "dualanalog", 1, NULL, 'A' },
{ "savestate", 1, NULL, 'S' },
{ "bsx", 1, NULL, 'b' },
{ "bsxslot", 1, NULL, 'B' },
{ "multitap", 0, NULL, '4' },
{ "sufamiA", 1, NULL, 'Y' },
{ "sufamiB", 1, NULL, 'Z' },
#ifdef HAVE_BSV_MOVIE
{ "bsvplay", 1, NULL, 'P' },
{ "bsvrecord", 1, NULL, 'R' },
{ "sram-mode", 1, NULL, 'M' },
#endif
#ifdef HAVE_NETPLAY
{ "host", 0, NULL, 'H' },
{ "connect", 1, NULL, 'C' },
{ "frames", 1, NULL, 'F' },
{ "port", 1, &val, 'p' },
{ "spectate", 0, &val, 'S' },
{ "nick", 1, &val, 'N' },
#endif
#ifdef HAVE_NETWORK_CMD
{ "command", 1, &val, 'c' },
#endif
{ "ups", 1, NULL, 'U' },
{ "bps", 1, &val, 'B' },
{ "ips", 1, &val, 'I' },
{ "no-patch", 0, &val, 'n' },
{ "xml", 1, NULL, 'X' },
{ "detach", 0, NULL, 'D' },
{ "features", 0, &val, 'f' },
{ NULL, 0, NULL, 0 }
};
#ifdef HAVE_FFMPEG
#define FFMPEG_RECORD_ARG "r:"
#else
#define FFMPEG_RECORD_ARG
#endif
#ifdef HAVE_DYNAMIC
#define DYNAMIC_ARG "L:"
#else
#define DYNAMIC_ARG
#endif
#ifdef HAVE_NETPLAY
#define NETPLAY_ARG "HC:F:"
#else
#define NETPLAY_ARG
#endif
#ifdef HAVE_BSV_MOVIE
#define BSV_MOVIE_ARG "P:R:M:"
#else
#define BSV_MOVIE_ARG
#endif
const char *optstring = "hs:fvS:m:p4jJA:g:b:c:B:Y:Z:U:DN:X:" BSV_MOVIE_ARG NETPLAY_ARG DYNAMIC_ARG FFMPEG_RECORD_ARG;
for (;;)
{
val = 0;
int c = getopt_long(argc, argv, optstring, opts, NULL);
int port;
if (c == -1)
break;
switch (c)
{
case 'h':
print_help();
exit(0);
case '4':
g_extern.libretro_device[1] = RETRO_DEVICE_JOYPAD_MULTITAP;
break;
case 'j':
g_extern.libretro_device[1] = RETRO_DEVICE_LIGHTGUN_JUSTIFIER;
break;
case 'J':
g_extern.libretro_device[1] = RETRO_DEVICE_LIGHTGUN_JUSTIFIERS;
break;
case 'A':
port = strtol(optarg, NULL, 0);
if (port < 1 || port > MAX_PLAYERS)
{
RARCH_ERR("Connect dualanalog to a valid port.\n");
print_help();
rarch_fail(1, "parse_input()");
}
g_extern.libretro_device[port - 1] = RETRO_DEVICE_ANALOG;
break;
case 's':
strlcpy(g_extern.savefile_name_srm, optarg, sizeof(g_extern.savefile_name_srm));
g_extern.has_set_save_path = true;
break;
case 'f':
g_extern.force_fullscreen = true;
break;
case 'g':
strlcpy(g_extern.gb_rom_path, optarg, sizeof(g_extern.gb_rom_path));
g_extern.game_type = RARCH_CART_SGB;
break;
case 'b':
strlcpy(g_extern.bsx_rom_path, optarg, sizeof(g_extern.bsx_rom_path));
g_extern.game_type = RARCH_CART_BSX;
break;
case 'B':
strlcpy(g_extern.bsx_rom_path, optarg, sizeof(g_extern.bsx_rom_path));
g_extern.game_type = RARCH_CART_BSX_SLOTTED;
break;
case 'Y':
strlcpy(g_extern.sufami_rom_path[0], optarg, sizeof(g_extern.sufami_rom_path[0]));
g_extern.game_type = RARCH_CART_SUFAMI;
break;
case 'Z':
strlcpy(g_extern.sufami_rom_path[1], optarg, sizeof(g_extern.sufami_rom_path[1]));
g_extern.game_type = RARCH_CART_SUFAMI;
break;
case 'S':
strlcpy(g_extern.savestate_name, optarg, sizeof(g_extern.savestate_name));
g_extern.has_set_state_path = true;
break;
case 'v':
g_extern.verbose = true;
break;
case 'm':
port = strtol(optarg, NULL, 0);
if (port < 1 || port > MAX_PLAYERS)
{
RARCH_ERR("Connect mouse to a valid port.\n");
print_help();
rarch_fail(1, "parse_input()");
}
g_extern.libretro_device[port - 1] = RETRO_DEVICE_MOUSE;
break;
case 'N':
port = strtol(optarg, NULL, 0);
if (port < 1 || port > MAX_PLAYERS)
{
RARCH_ERR("Disconnect device from a valid port.\n");
print_help();
rarch_fail(1, "parse_input()");
}
g_extern.libretro_device[port - 1] = RETRO_DEVICE_NONE;
break;
case 'p':
g_extern.libretro_device[1] = RETRO_DEVICE_LIGHTGUN_SUPER_SCOPE;
break;
case 'c':
strlcpy(g_extern.config_path, optarg, sizeof(g_extern.config_path));
break;
#ifdef HAVE_FFMPEG
case 'r':
strlcpy(g_extern.record_path, optarg, sizeof(g_extern.record_path));
g_extern.recording = true;
break;
#endif
#ifdef HAVE_DYNAMIC
case 'L':
strlcpy(g_settings.libretro, optarg, sizeof(g_settings.libretro));
break;
#endif
#ifdef HAVE_BSV_MOVIE
case 'P':
case 'R':
strlcpy(g_extern.bsv.movie_start_path, optarg,
sizeof(g_extern.bsv.movie_start_path));
g_extern.bsv.movie_start_playback = c == 'P';
g_extern.bsv.movie_start_recording = c == 'R';
break;
case 'M':
if (strcmp(optarg, "noload-nosave") == 0)
{
g_extern.sram_load_disable = true;
g_extern.sram_save_disable = true;
}
else if (strcmp(optarg, "noload-save") == 0)
g_extern.sram_load_disable = true;
else if (strcmp(optarg, "load-nosave") == 0)
g_extern.sram_save_disable = true;
else if (strcmp(optarg, "load-save") != 0)
{
RARCH_ERR("Invalid argument in --sram-mode.\n");
print_help();
rarch_fail(1, "parse_input()");