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RetroArch/general.h

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2012 - 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/>.
*/
#ifndef __RARCH_GENERAL_H
#define __RARCH_GENERAL_H
#include "boolean.h"
#include <stdio.h>
#include <time.h>
#include <limits.h>
#include <setjmp.h>
#include "driver.h"
#include "record/ffemu.h"
#include "message.h"
#include "rewind.h"
#include "movie.h"
#include "autosave.h"
#include "dynamic.h"
#include "cheats.h"
#include "audio/ext/rarch_dsp.h"
#include "compat/strl.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
// Platform-specific headers
// PS3
#if defined(__CELLOS_LV2__) && !defined(__PSL1GHT__)
#include <sys/timer.h>
#include "ps3/ps3_input.h"
#endif
// libxenon
#ifdef XENON
#include <time/time.h>
#endif
// Android
#ifdef ANDROID
#include "android/native/jni/android_general.h"
#endif
// Windows
#if defined(_WIN32) && !defined(_XBOX)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include "msvc/msvc_compat.h"
#endif
// XBox
#if defined(_XBOX)
#include <xtl.h>
#include "msvc/msvc_compat.h"
#endif
// Wii
#if defined(GEKKO)
#include <unistd.h>
#endif
// PSP
#if defined(PSP)
#include <pspthreadman.h>
#endif
//////////////
// Some platforms do not set this value.
// Just assume a value. It's usually 4KiB.
// Platforms with a known value (like Win32)
// set this value explicitly in platform specific headers.
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
#ifdef HAVE_NETPLAY
#include "netplay.h"
#endif
#ifdef HAVE_COMMAND
#include "command.h"
#endif
#include "audio/resampler.h"
#define MAX_PLAYERS 8
// All config related settings go here.
struct settings
{
struct
{
char driver[32];
float xscale;
float yscale;
bool fullscreen;
bool windowed_fullscreen;
unsigned monitor_index;
unsigned fullscreen_x;
unsigned fullscreen_y;
bool vsync;
bool smooth;
bool force_aspect;
bool crop_overscan;
float aspect_ratio;
bool aspect_ratio_auto;
unsigned aspect_ratio_idx;
char cg_shader_path[PATH_MAX];
char bsnes_shader_path[PATH_MAX];
char filter_path[PATH_MAX];
enum rarch_shader_type shader_type;
float refresh_rate;
bool render_to_texture;
struct
{
float scale_x;
float scale_y;
} fbo;
char second_pass_shader[PATH_MAX];
bool second_pass_smooth;
char shader_dir[PATH_MAX];
char font_path[PATH_MAX];
unsigned font_size;
bool font_enable;
bool font_scale;
float msg_pos_x;
float msg_pos_y;
float msg_color_r;
float msg_color_g;
float msg_color_b;
bool disable_composition;
bool post_filter_record;
bool gpu_record;
bool gpu_screenshot;
bool allow_rotate;
char external_driver[PATH_MAX];
} video;
struct
{
char driver[32];
bool enable;
unsigned out_rate;
float in_rate;
float rate_step;
char device[PATH_MAX];
unsigned latency;
bool sync;
char dsp_plugin[PATH_MAX];
char external_driver[PATH_MAX];
bool rate_control;
float rate_control_delta;
float volume; // dB scale
} audio;
struct
{
char driver[32];
struct retro_keybind binds[MAX_PLAYERS][RARCH_BIND_LIST_END];
float axis_threshold;
int joypad_map[MAX_PLAYERS];
#ifdef RARCH_CONSOLE
unsigned currently_selected_controller_no;
unsigned dpad_emulation[MAX_PLAYERS];
unsigned map_dpad_to_stick;
unsigned device[MAX_PLAYERS];
#endif
bool netplay_client_swap_input;
unsigned turbo_period;
unsigned turbo_duty_cycle;
} input;
char libretro[PATH_MAX];
char cheat_database[PATH_MAX];
char cheat_settings_path[PATH_MAX];
char screenshot_directory[PATH_MAX];
char system_directory[PATH_MAX];
bool rewind_enable;
size_t rewind_buffer_size;
unsigned rewind_granularity;
float slowmotion_ratio;
bool pause_nonactive;
unsigned autosave_interval;
bool block_sram_overwrite;
bool savestate_auto_index;
bool savestate_auto_save;
bool network_cmd_enable;
uint16_t network_cmd_port;
bool stdin_cmd_enable;
};
enum rarch_game_type
{
RARCH_CART_NORMAL = 0,
RARCH_CART_SGB,
RARCH_CART_BSX,
RARCH_CART_BSX_SLOTTED,
RARCH_CART_SUFAMI
};
typedef struct rarch_boolean_state
{
bool enable;
unsigned value;
} rarch_boolean_state_t;
typedef struct rarch_frame_count
{
unsigned expire_frame;
} rarch_frame_count_t;
typedef struct rarch_resolution
{
unsigned idx;
unsigned id;
} rarch_resolution_t;
typedef struct rarch_viewport
{
int x;
int y;
unsigned width;
unsigned height;
} rarch_viewport_t;
// All run-time- / command line flag-related globals go here.
struct global
{
bool verbose;
bool audio_active;
bool video_active;
bool force_fullscreen;
bool disconnect_device[MAX_PLAYERS];
bool has_mouse[MAX_PLAYERS];
bool has_dualanalog[MAX_PLAYERS];
bool has_scope;
bool has_justifier;
bool has_justifiers;
bool has_multitap;
FILE *rom_file;
enum rarch_game_type game_type;
uint32_t cart_crc;
char gb_rom_path[PATH_MAX];
char bsx_rom_path[PATH_MAX];
char sufami_rom_path[2][PATH_MAX];
bool has_set_save_path;
bool has_set_state_path;
#ifdef HAVE_CONFIGFILE
char config_path[PATH_MAX];
char append_config_path[PATH_MAX];
#endif
#ifdef HAVE_FILE_LOGGER
char default_log_file[PATH_MAX];
#endif
char basename[PATH_MAX];
char fullpath[PATH_MAX];
char savefile_name_srm[PATH_MAX];
char savefile_name_rtc[PATH_MAX]; // Make sure that fill_pathname has space.
char savefile_name_psrm[PATH_MAX];
char savefile_name_asrm[PATH_MAX];
char savefile_name_bsrm[PATH_MAX];
char savestate_name[PATH_MAX];
char xml_name[PATH_MAX];
bool block_patch;
bool ups_pref;
bool bps_pref;
bool ips_pref;
char ups_name[PATH_MAX];
char bps_name[PATH_MAX];
char ips_name[PATH_MAX];
unsigned state_slot;
struct
{
struct retro_system_info info;
struct retro_system_av_info av_info;
char *environment;
char *environment_split;
unsigned rotation;
bool shutdown;
unsigned performance_level;
enum retro_pixel_format pix_fmt;
bool force_nonblock;
const char *input_desc_btn[MAX_PLAYERS][RARCH_FIRST_CUSTOM_BIND];
retro_keyboard_event_t key_event;
} system;
struct
{
rarch_resampler_t *source;
float *data;
size_t data_ptr;
size_t chunk_size;
size_t nonblock_chunk_size;
size_t block_chunk_size;
double src_ratio;
bool use_float;
bool mute;
sample_t *outsamples;
int16_t *conv_outsamples;
int16_t *rewind_buf;
size_t rewind_ptr;
size_t rewind_size;
dylib_t dsp_lib;
const rarch_dsp_plugin_t *dsp_plugin;
void *dsp_handle;
bool rate_control;
double orig_src_ratio;
size_t driver_buffer_size;
float volume_db;
float volume_gain;
} audio_data;
struct
{
bool active;
uint32_t *buffer;
uint32_t *colormap;
unsigned pitch;
dylib_t lib;
unsigned scale;
void (*psize)(unsigned *width, unsigned *height);
void (*prender)(uint32_t *colormap, uint32_t *output, unsigned outpitch,
const uint16_t *input, unsigned pitch, unsigned width, unsigned height);
// CPU filters only work on *XRGB1555*. We have to convert to XRGB1555 first.
struct scaler_ctx scaler;
uint16_t *scaler_out;
} filter;
msg_queue_t *msg_queue;
// Rewind support.
state_manager_t *state_manager;
void *state_buf;
size_t state_size;
bool frame_is_reverse;
#ifdef HAVE_BSV_MOVIE
// Movie playback/recording support.
struct
{
bsv_movie_t *movie;
char movie_path[PATH_MAX];
bool movie_playback;
// Immediate playback/recording.
char movie_start_path[PATH_MAX];
bool movie_start_recording;
bool movie_start_playback;
bool movie_end;
} bsv;
#endif
bool sram_load_disable;
bool sram_save_disable;
bool use_sram;
// Pausing support
bool is_paused;
bool is_oneshot;
bool is_slowmotion;
// Turbo support
bool turbo_frame_enable[MAX_PLAYERS];
uint16_t turbo_enable[MAX_PLAYERS];
unsigned turbo_count;
// Autosave support.
autosave_t *autosave[2];
// Netplay.
#ifdef HAVE_NETPLAY
netplay_t *netplay;
char netplay_server[PATH_MAX];
bool netplay_enable;
bool netplay_is_client;
bool netplay_is_spectate;
unsigned netplay_sync_frames;
uint16_t netplay_port;
char netplay_nick[32];
#endif
// FFmpeg record.
#ifdef HAVE_FFMPEG
ffemu_t *rec;
char record_path[PATH_MAX];
char record_config[PATH_MAX];
bool recording;
unsigned record_width;
unsigned record_height;
uint8_t *record_gpu_buffer;
size_t record_gpu_width;
size_t record_gpu_height;
#endif
struct
{
const void *data;
unsigned width;
unsigned height;
size_t pitch;
} frame_cache;
unsigned frame_count;
char title_buf[64];
struct
{
struct string_list *list;
size_t ptr;
} shader_dir;
char sha256[64 + 1];
#ifdef HAVE_XML
cheat_manager_t *cheat;
#endif
// Settings and/or global state that is specific to a console-style implementation.
struct
{
bool block_config_read;
bool initialize_rarch_enable;
unsigned emulator_initialized;
rarch_frame_count_t general_timers[2];
struct
{
struct
{
unsigned idx;
} ingame_menu;
unsigned mode;
unsigned input_loop;
float font_size;
struct
{
rarch_boolean_state_t msg_fps;
rarch_boolean_state_t msg_info;
rarch_boolean_state_t ingame_menu;
rarch_boolean_state_t rmenu;
rarch_boolean_state_t rmenu_widescreen;
rarch_boolean_state_t rmenu_hd;
} state;
} rmenu;
struct
{
bool enable;
char launch_app[PATH_MAX];
unsigned support;
} external_launch;
struct
{
struct
{
rarch_resolution_t current;
rarch_resolution_t initial;
uint32_t *list;
unsigned count;
bool check;
} resolutions;
struct
{
rarch_viewport_t custom_vp;
} viewports;
unsigned orientation;
float overscan_amount;
unsigned gamma_correction;
struct
{
rarch_boolean_state_t triple_buffering;
rarch_boolean_state_t overscan;
rarch_boolean_state_t flicker_filter;
rarch_boolean_state_t soft_filter;
rarch_boolean_state_t screenshots;
rarch_boolean_state_t throttle;
} state;
} screen;
struct
{
rarch_boolean_state_t custom_bgm;
unsigned mode;
#ifdef _XBOX1
unsigned volume_level;
#endif
} sound;
struct
{
struct
{
char default_rom_startup_dir[PATH_MAX];
char default_savestate_dir[PATH_MAX];
char default_sram_dir[PATH_MAX];
} paths;
struct
{
rarch_boolean_state_t default_sram_dir;
rarch_boolean_state_t default_savestate_dir;
} state;
} main_wrap;
#ifdef HAVE_OSKUTIL
struct
{
oskutil_params oskutil_handle;
} misc;
#endif
} console;
bool draw_menu;
uint64_t lifecycle_state;
struct
{
char rom_path[PATH_MAX];
char cgp_path[PATH_MAX];
char input_cfg_path[PATH_MAX];
#ifdef HAVE_ZLIB
unsigned zip_extract_mode;
#endif
#ifdef _XBOX
DWORD volume_device_type;
#endif
} file_state;
// If this is non-NULL. RARCH_LOG and friends will write to this file.
FILE *log_file;
bool error_in_init;
char error_string[1024];
jmp_buf error_sjlj_context;
};
// Public functions
void config_load(void);
void config_set_defaults(void);
const char *config_get_default_video(void);
const char *config_get_default_audio(void);
const char *config_get_default_input(void);
#ifdef HAVE_CONFIGFILE
#include "conf/config_file.h"
bool config_load_file(const char *path);
bool config_read_keybinds(const char *path);
bool config_save_keybinds(const char *path);
#endif
void rarch_game_reset(void);
void rarch_main_clear_state(void);
int rarch_main(int argc, char *argv[]);
int rarch_main_init(int argc, char *argv[]);
bool rarch_main_iterate(void);
void rarch_main_deinit(void);
void rarch_render_cached_frame(void);
void rarch_init_msg_queue(void);
void rarch_deinit_msg_queue(void);
void rarch_load_state(void);
void rarch_save_state(void);
void rarch_state_slot_increase(void);
void rarch_state_slot_decrease(void);
/////////
// Public data structures
extern struct settings g_settings;
extern struct global g_extern;
/////////
#include "retroarch_logger.h"
#ifndef max
#define max(a, b) ((a) > (b) ? (a) : (b))
#endif
#ifndef min
#define min(a, b) ((a) < (b) ? (a) : (b))
#endif
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
#define RARCH_SCALE_BASE 256
static inline uint32_t next_pow2(uint32_t v)
{
v--;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
v++;
return v;
}
static inline uint32_t prev_pow2(uint32_t v)
{
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
return v - (v >> 1);
}
static inline uint8_t is_little_endian(void)
{
union
{
uint16_t x;
uint8_t y[2];
} u;
u.x = 1;
return u.y[0];
}
static inline uint32_t swap_if_big32(uint32_t val)
{
if (is_little_endian()) // Little-endian
return val;
else
return (val >> 24) | ((val >> 8) & 0xFF00) | ((val << 8) & 0xFF0000) | (val << 24);
}
static inline uint32_t swap_if_little32(uint32_t val)
{
if (is_little_endian())
return (val >> 24) | ((val >> 8) & 0xFF00) | ((val << 8) & 0xFF0000) | (val << 24);
else
return val;
}
static inline uint16_t swap_if_big16(uint16_t val)
{
if (is_little_endian())
return val;
else
return (val >> 8) | (val << 8);
}
static inline uint16_t swap_if_little16(uint16_t val)
{
if (is_little_endian())
return (val >> 8) | (val << 8);
else
return val;
}
static inline float db_to_gain(float db)
{
return powf(10.0f, db / 20.0f);
}
static inline void rarch_sleep(unsigned msec)
{
#if defined(__CELLOS_LV2__) && !defined(__PSL1GHT__)
sys_timer_usleep(1000 * msec);
#elif defined(PSP)
sceKernelDelayThread(1000 * msec);
#elif defined(_WIN32)
Sleep(msec);
#elif defined(XENON)
udelay(1000 * msec);
#elif defined(GEKKO)
usleep(1000 * msec);
#else
struct timespec tv = {0};
tv.tv_sec = msec / 1000;
tv.tv_nsec = (msec % 1000) * 1000000;
nanosleep(&tv, NULL);
#endif
}
#define rarch_assert(cond) do { \
if (!(cond)) { RARCH_ERR("Assertion failed at %s:%d.\n", __FILE__, __LINE__); exit(2); } \
} while(0)
static inline void rarch_fail(int error_code, const char *error)
{
// We cannot longjmp unless we're in rarch_main_init().
// If not, something went very wrong, and we should just exit right away.
rarch_assert(g_extern.error_in_init);
strlcpy(g_extern.error_string, error, sizeof(g_extern.error_string));
longjmp(g_extern.error_sjlj_context, error_code);
}
#endif
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