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author | aliaspider | 2014-10-29 05:36:07 +0100 |
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committer | aliaspider | 2014-10-29 05:36:07 +0100 |
commit | a6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a (patch) | |
tree | 6f82417b0ab41f3887dd025ee3b85254e28143da /libretro.cpp | |
parent | 1d98e1c317fa19687ae6bc3cb8e550ef7531bf02 (diff) | |
download | snesemu-a6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a.tar.gz snesemu-a6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a.tar.bz2 snesemu-a6dc7abc9b8cc3986eda5a84141da7dc9e4e8f1a.zip |
start moving everything to C
Diffstat (limited to 'libretro.cpp')
-rw-r--r-- | libretro.cpp | 877 |
1 files changed, 0 insertions, 877 deletions
diff --git a/libretro.cpp b/libretro.cpp deleted file mode 100644 index ded3dc9..0000000 --- a/libretro.cpp +++ /dev/null @@ -1,877 +0,0 @@ - -#include <stdio.h> - -#include "snes9x.h" -#include "soundux.h" -#include "memmap.h" -#include "apu.h" -#include "cheats.h" -#include "snapshot.h" -#include "display.h" -#include "gfx.h" -#include "cpuexec.h" -#include "spc7110.h" - -#ifdef PSP -#include <psptypes.h> -#else -#ifndef PSP_LEGACY_TYPES_DEFINED -#define PSP_LEGACY_TYPES_DEFINED -typedef uint8_t u8; -typedef uint16_t u16; - -typedef uint32_t u32; -typedef uint64_t u64; - -typedef int8_t s8; -typedef int16_t s16; - -typedef int32_t s32; -typedef int64_t s64; -#endif -#endif - -#include <libretro.h> - -static retro_log_printf_t log_cb = NULL; -static retro_video_refresh_t video_cb = NULL; -static retro_input_poll_t poll_cb = NULL; -static retro_input_state_t input_cb = NULL; -static retro_audio_sample_batch_t audio_batch_cb = NULL; -static retro_environment_t environ_cb = NULL; - - -struct retro_perf_callback perf_cb; - -void retro_set_environment(retro_environment_t cb) -{ - struct retro_log_callback log; - - environ_cb = cb; - - if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) - log_cb = log.log; - else - log_cb = NULL; - - environ_cb(RETRO_ENVIRONMENT_GET_PERF_INTERFACE, &perf_cb); - -} - - -void retro_set_video_refresh(retro_video_refresh_t cb) -{ - video_cb = cb; -} - -void retro_set_audio_sample(retro_audio_sample_t cb) -{} - -void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) -{ - audio_batch_cb = cb; -} - -void retro_set_input_poll(retro_input_poll_t cb) -{ - poll_cb = cb; -} - -void retro_set_input_state(retro_input_state_t cb) -{ - input_cb = cb; -} - -void retro_set_controller_port_device(unsigned port, unsigned device) {} - -unsigned retro_api_version() { return RETRO_API_VERSION; } - - - -void S9xProcessSound (unsigned int); - -char *rom_filename = NULL; -char *SDD1_pack = NULL; - -/* - * It is only safe to manipulate saved states between frames. - */ -static bool8 LoadStateNeeded = FALSE; -static bool8 SaveStateNeeded = FALSE; - -static u8 Buf[MAX_BUFFER_SIZE]; - -#define FIXED_POINT 0x10000 -#define FIXED_POINT_SHIFT 16 -#define FIXED_POINT_REMAINDER 0xffff - -void S9xMessage (int /*type*/, int /*number*/, const char *message) -{ -#if 1 -#define MAX_MESSAGE_LEN (36 * 3) - - static char buffer [MAX_MESSAGE_LEN + 1]; - - printf ("%s\n", message); - strncpy (buffer, message, MAX_MESSAGE_LEN); - buffer [MAX_MESSAGE_LEN] = 0; - S9xSetInfoString (buffer); -#endif -} - -void S9xExtraUsage () -{ - /*empty*/ -} - -/* -* Release display device -*/ -void S9xDeinitDisplay (void) -{ -#ifdef DS2_DMA - if(GFX.Screen) AlignedFree(GFX.Screen, PtrAdj.GFXScreen); -#else - if(GFX.Screen) free(GFX.Screen); -#endif - if(GFX.SubScreen) free(GFX.SubScreen); - if(GFX.ZBuffer) free(GFX.ZBuffer); - if(GFX.SubZBuffer) free(GFX.SubZBuffer); -} - -void S9xInitDisplay (void) -{ - int h = IMAGE_HEIGHT; - - GFX.Pitch = IMAGE_WIDTH * 2; -#ifdef DS2_DMA - GFX.Screen = (unsigned char*) AlignedMalloc (GFX.Pitch * h, 32, &PtrAdj.GFXScreen); -#else - GFX.Screen = (unsigned char*) malloc (GFX.Pitch * h); -#endif - GFX.SubScreen = (unsigned char*) malloc (GFX.Pitch * h); - GFX.ZBuffer = (unsigned char*) malloc ((GFX.Pitch >> 1) * h); - GFX.SubZBuffer =(unsigned char*) malloc ((GFX.Pitch >> 1) * h); - GFX.Delta = (GFX.SubScreen - GFX.Screen) >> 1; -} - -void S9xParseArg (char **argv, int &i, int argc) -{ -} - -void S9xParseDisplayArg (char **argv, int &ind, int) -{ -} - -void S9xExit () -{ -// if(Settings.SPC7110) -// (*CleanUp7110)(); - -// S9xSetSoundMute (TRUE); -// S9xDeinitDisplay (); -// Memory.SaveSRAM (S9xGetFilename (".srm")); -// // S9xSaveCheatFile (S9xGetFilename (".chb")); // cheat binary file -// // Do this when loading a cheat file! -// Memory.Deinit (); -// S9xDeinitAPU (); - -// exit(0); -} - -const char *S9xBasename (const char *f) -{ - const char *p; - if ((p = strrchr (f, '/')) != NULL || (p = strrchr (f, '\\')) != NULL) - return (p + 1); - - return (f); -} - -bool8 S9xInitUpdate () -{ -// IPPU.RenderThisFrame = 0; -// video_cb(dummy_frame,256,224,512); -// return (FALSE); - - return (TRUE); -} - - -extern void NDSSFCDrawFrameAntialiased(void* screen_addr); - -#ifdef PSP -#include <pspkernel.h> -#include <pspgu.h> -void S9xDeinitUpdate (int width, int height, bool8 /*sixteen_bit*/) -{ - static unsigned int __attribute__((aligned(16))) d_list[32]; - void* const texture_vram_p = (void*) (0x44200000 - (512 * 512)); // max VRAM address - frame size - - sceKernelDcacheWritebackRange(GFX.Screen, GFX.Pitch*height); - - sceGuStart(GU_DIRECT, d_list); - - sceGuCopyImage(GU_PSM_4444, 0, 0, width, height, GFX.Pitch>>1, GFX.Screen, 0, 0, 512, texture_vram_p); - - sceGuTexSync(); - sceGuTexImage(0, 512, 512, 512, texture_vram_p); - sceGuTexMode(GU_PSM_5551, 0, 0, GU_FALSE); - sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGB); - sceGuDisable(GU_BLEND); - - sceGuFinish(); - - - video_cb(texture_vram_p, width, height, GFX.Pitch); -} - -#else -void S9xDeinitUpdate (int width, int height) -{ - video_cb(GFX.Screen, width, height, GFX.Pitch); -} - -#endif - -void _makepath (char *path, const char *, const char *dir, - const char *fname, const char *ext) -{ - if (dir && *dir) - { - strcpy (path, dir); - strcat (path, "/"); - } - else - *path = 0; - strcat (path, fname); - if (ext && *ext) - { - strcat (path, "."); - strcat (path, ext); - } -} - -void _splitpath (const char *path, char *drive, char *dir, char *fname, - char *ext) -{ - *drive = 0; - - char *slash = strrchr ((char*)path, '/'); - if (!slash) - slash = strrchr ((char*)path, '\\'); - - char *dot = strrchr ((char*)path, '.'); - - if (dot && slash && dot < slash) - dot = NULL; - - if (!slash) - { - strcpy (dir, ""); - strcpy (fname, path); - if (dot) - { - *(fname + (dot - path)) = 0; - strcpy (ext, dot + 1); - } - else - strcpy (ext, ""); - } - else - { - strcpy (dir, path); - *(dir + (slash - path)) = 0; - strcpy (fname, slash + 1); - if (dot) - { - *(fname + (dot - slash) - 1) = 0; - strcpy (ext, dot + 1); - } - else - strcpy (ext, ""); - } -} - -void S9xProcessEvents (bool8 block) -{ - -} - -void OutOfMemory () -{ -} - - -const char *S9xGetROMDirectory () -{ - return "./"; -} - - -const char *S9xGetSnapshotDirectory () -{ - return "./"; -} - -const char *S9xGetFilename (const char *ex) -{ - static char filename [PATH_MAX + 1]; - char drive [_MAX_DRIVE + 1]; - char dir [_MAX_DIR + 1]; - char fname [_MAX_FNAME + 1]; - char ext [_MAX_EXT + 1]; - - _splitpath (Memory.ROMFilename, drive, dir, fname, ext); - strcpy (filename, S9xGetSnapshotDirectory ()); - strcat (filename, SLASH_STR); - strcat (filename, fname); - strcat (filename, ex); - - return (filename); -} - -const char *S9xGetFilenameInc (const char *e) -{ - return e; -#if 0 - static char filename [_MAX_PATH + 1]; - char drive [_MAX_DRIVE + 1]; - char dir [_MAX_DIR + 1]; - char fname [_MAX_FNAME + 1]; - char ext [_MAX_EXT + 1]; - char *ptr; - struct stat buf; - - if (strlen (S9xGetSnapshotDirectory())) - { - _splitpath (Memory.ROMFilename, drive, dir, fname, ext); - strcpy (filename, S9xGetSnapshotDirectory()); - strcat (filename, "/"); - strcat (filename, fname); - ptr = filename + strlen (filename); - strcat (filename, "00/"); - strcat (filename, e); - } - else - { - _splitpath (Memory.ROMFilename, drive, dir, fname, ext); - strcat (fname, "00/"); - _makepath (filename, drive, dir, fname, e); - ptr = strstr (filename, "00/"); - } - - do - { - if (++*(ptr + 2) > '9') - { - *(ptr + 2) = '0'; - if (++*(ptr + 1) > '9') - { - *(ptr + 1) = '0'; - if (++*ptr > '9') - break; - } - } - } while( stat(filename, &buf) == 0 ); - - return (filename); -#endif -} - -void S9xInitInputDevices () -{ -#ifdef JOYSTICK_SUPPORT - InitJoysticks (); -#endif -} - - -void init_sfc_setting(void) -{ - ZeroMemory (&Settings, sizeof (Settings)); -#ifdef JOYSTICK_SUPPORT - Settings.JoystickEnabled = TRUE; -#else - Settings.JoystickEnabled = FALSE; -#endif - - Settings.SoundPlaybackRate = 44100; // -> ds2sound.h for defs - Settings.SoundBufferSize = 512; - Settings.CyclesPercentage = 100; - Settings.DisableSoundEcho = FALSE; - //sound settings - Settings.APUEnabled = Settings.NextAPUEnabled = TRUE; - // Settings.FixFrequency = 1; - - Settings.H_Max = SNES_CYCLES_PER_SCANLINE; - Settings.SkipFrames = AUTO_FRAMERATE; - Settings.ShutdownMaster = TRUE; - Settings.FrameTimePAL = 20000; - Settings.FrameTimeNTSC = 16667; - Settings.DisableMasterVolume = FALSE; - Settings.Mouse = TRUE; - Settings.SuperScope = TRUE; - Settings.MultiPlayer5 = TRUE; - Settings.ControllerOption = SNES_JOYPAD; - - Settings.Transparency = TRUE; - Settings.SupportHiRes = FALSE; - Settings.ThreadSound = FALSE; - Settings.SoundSync = TRUE; - Settings.ApplyCheats = TRUE; - Settings.StretchScreenshots = 1; - - Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX; -} - -void S9xAutoSaveSRAM () -{ - Memory.SaveSRAM (S9xGetFilename (".srm")); -} - -int game_load_state(char* file) -{ - int flag; - - flag = 0; - if(S9xUnfreezeGame(file) == FALSE) - flag = -1; - - return flag; -} - -int game_save_state(char* file) -{ - int flag; - - flag = 0; - if(S9xFreezeGame(file) == FALSE) - flag = -1; - - S9xAutoSaveSRAM (); - - return flag; -} - -void game_restart(void) -{ - CPU.Flags = 0; - S9xReset (); -} - -int load_gamepak(const char* file) -{ - CPU.Flags = 0; - // mdelay(50); // Delete this delay - if (!Memory.LoadROM (file)) - return -1; - S9xReset (); - - Settings.FrameTime = (Settings.PAL ? Settings.FrameTimePAL : Settings.FrameTimeNTSC); - - Memory.LoadSRAM (S9xGetFilename (".srm")); - S9xLoadCheatFile (S9xGetFilename (".chb")); // cheat binary file, as opposed to text - - return 0; -} - -extern "C" void sfc_main(void); - -void retro_init (void) -{ - struct retro_log_callback log; - enum retro_pixel_format rgb565; - - if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) - log_cb = log.log; - else - log_cb = NULL; - - rgb565 = RETRO_PIXEL_FORMAT_RGB565; - if(environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &rgb565) && log_cb) - log_cb(RETRO_LOG_INFO, "Frontend supports RGB565 - will use that instead of XRGB1555.\n"); - - init_sfc_setting(); - - if (!Memory.Init () || !S9xInitAPU()) - OutOfMemory (); - - S9xInitDisplay (); - if (!S9xGraphicsInit()) - OutOfMemory (); - - S9xInitSound (Settings.SoundPlaybackRate, - TRUE, - Settings.SoundBufferSize); - -#ifdef JOYSTICK_SUPPORT - uint32 JoypadSkip = 0; -#endif - - -} - - -uint32 S9xReadJoypad (int port) -{ - static const uint32 snes_lut[] = { - SNES_B_MASK, - SNES_Y_MASK, - SNES_SELECT_MASK, - SNES_START_MASK, - SNES_UP_MASK, - SNES_DOWN_MASK, - SNES_LEFT_MASK, - SNES_RIGHT_MASK, - SNES_A_MASK, - SNES_X_MASK, - SNES_TL_MASK, - SNES_TR_MASK - }; - - int i; - uint32 joypad = 0; - - for ( i = RETRO_DEVICE_ID_JOYPAD_B; i <= RETRO_DEVICE_ID_JOYPAD_R; i++) - if (input_cb(port, RETRO_DEVICE_JOYPAD, 0, i)) - joypad |= snes_lut[i]; - - return joypad; -} - -//#define FRAMESKIP -void retro_run (void) -{ - int i, port; - -// IPPU.RenderThisFrame = FALSE; -// video_cb(GFX.Screen, 256, 224, 512); - - poll_cb(); - - S9xSetPlaybackRate(32040); - so.mute_sound = FALSE; - SoundData.echo_enable = FALSE; - - S9xMainLoop(); - - static s16 audio_buf[534 << 1]; - S9xMixSamples ((uint8*)audio_buf, 534 << 1); - audio_batch_cb(audio_buf, 534); - - -#ifdef FRAMESKIP - if (IPPU.RenderThisFrame) - IPPU.RenderThisFrame = false; - else - { - video_cb(NULL, 256, 224, GFX.Pitch); - IPPU.RenderThisFrame = true; - } -#endif - -// if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) -// check_variables(); - -} - - -static unsigned int sync_last= 0; -static unsigned int sync_next = 0; - -static unsigned int skip_rate= 0; - -void S9xSyncSpeed () -{ -} - -bool8 S9xOpenSoundDevice (int mode, bool8 stereo, int buffer_size) -{ - return (TRUE); -} - -void S9xGenerateSound () -{ -// static s16 audio_buf[855 << 1]; -// S9xMixSamples ((uint8*)audio_buf, 855 << 1); -// audio_batch_cb(audio_buf, 855); - - - -} - -void S9xGenerateSound0 () -{ - int bytes_so_far = so.samples_mixed_so_far << 1; - - if (bytes_so_far >= so.buffer_size) - return; - - so.err_counter += so.err_rate; - if (so.err_counter >= FIXED_POINT) - { - // Write this many samples overall - int samples_to_write = so.err_counter >> FIXED_POINT_SHIFT; - samples_to_write <<= 1; - int byte_offset = (bytes_so_far + so.play_position) & SOUND_BUFFER_SIZE_MASK; - - so.err_counter &= FIXED_POINT_REMAINDER; - - do - { - int bytes_this_run = samples_to_write; - bytes_this_run <<= 1; - - if (byte_offset + bytes_this_run > SOUND_BUFFER_SIZE) - { - bytes_this_run = SOUND_BUFFER_SIZE - byte_offset; - } - - if (bytes_so_far + bytes_this_run > so.buffer_size) - { - bytes_this_run = so.buffer_size - bytes_so_far; - if (bytes_this_run == 0) - break; - } - - int samples_this_run = bytes_this_run; - samples_this_run >>= 1; - - S9xMixSamples (Buf + byte_offset, samples_this_run); - so.samples_mixed_so_far += samples_this_run; - samples_to_write -= samples_this_run; - bytes_so_far += samples_this_run << 1; - byte_offset = (byte_offset + bytes_this_run) & SOUND_BUFFER_SIZE_MASK; - } while (samples_to_write > 0); - } -} - -#define SOUND_EMISSION_INTERVAL ((unsigned int) ((((unsigned long long) DS2_BUFFER_SIZE * 1000000) / SND_SAMPLE_RATE) * 3 / 128)) -#define TRUE_SOUND_EMISSION_INTERVAL ((((double) DS2_BUFFER_SIZE * 1000000) / SND_SAMPLE_RATE) * 3 / 128) -#define SOUND_EMISSION_INTERVAL_ERROR ((int) ((TRUE_SOUND_EMISSION_INTERVAL - SOUND_EMISSION_INTERVAL) * FIXED_POINT)) -static unsigned int LastSoundEmissionTime = 0; - -/* - * Accumulated error in the sound emission time. The unit is as follows: - * FIXED_POINT = 42.667 microseconds. - * As the error goes past FIXED_POINT, the new target for sound emission - * becomes 42.667 microseconds LATER. This helps with sound buffer overruns, - * correctly dealing with the fact that 42.667 microseconds does not fit - * an integer number of times in 1/32000 second (or whatever sampling rate). - */ -static unsigned int SoundEmissionTimeError = 0; - -void S9xProcessSound (unsigned int) -{ - -} - -/* -const unsigned int keymap[12] = { - 0x80, //KEY_A - 0x8000, //KEY_B - 0x2000, //KEY_SELECT - 0x1000, //KEY_START - 0x100, //KEY_RIGHT - 0x200, //KEY_LEFT - 0x800, //KEY_UP - 0x400, //KEY_DOWN - 0x10, //KEY_R - 0x20, //KEY_L - 0x40, //KEY_X - 0x4000 //KEY_Y - }; -*/ - -static bool8 SoundToggleWasHeld = FALSE; -static bool8 LoadStateWasHeld = FALSE; -static bool8 SaveStateWasHeld = FALSE; -static bool8 ToggleFullScreenWasHeld = FALSE; - -#ifdef ACCUMULATE_JOYPAD -// These are kept as DS key bitfields until it's time to send them to Snes9x. -static uint32 PreviousControls = 0x00000000; -static uint32 ControlsPressed = 0x00000000; -static uint32 ControlsReleased = 0x00000000; - -void NDSSFCAccumulateJoypad () -{ - struct key_buf inputdata; - ds2_getrawInput(&inputdata); - - ControlsPressed |= inputdata.key & ~PreviousControls; - ControlsReleased |= PreviousControls & ~inputdata.key; -} -#endif // ACCUMULATE_JOYPAD - -static int S9xCompareSDD1IndexEntries (const void *p1, const void *p2) -{ - return (*(uint32 *) p1 - *(uint32 *) p2); -} - -void S9xLoadSDD1Data () -{ - -} - -bool8 S9xReadMousePosition (int which1, int &x, int &y, uint32 &buttons) -{ - return (FALSE); -} - -bool8 S9xReadSuperScopePosition (int &x, int &y, uint32 &buttons) -{ - return (TRUE); -} - -bool JustifierOffscreen() -{ - return (FALSE); -} - -void JustifierButtons(uint32& justifiers) -{ -} - -START_EXTERN_C -char* osd_GetPackDir() -{ - static char filename[_MAX_PATH]; - memset(filename, 0, _MAX_PATH); - - if(strlen(S9xGetSnapshotDirectory())!=0) - strcpy (filename, S9xGetSnapshotDirectory()); - else - { - char dir [_MAX_DIR + 1]; - char drive [_MAX_DRIVE + 1]; - char name [_MAX_FNAME + 1]; - char ext [_MAX_EXT + 1]; - _splitpath(Memory.ROMFilename, drive, dir, name, ext); - _makepath(filename, drive, dir, NULL, NULL); - } - - if(!strncmp((char*)&Memory.ROM [0xffc0], "SUPER POWER LEAG 4 ", 21)) - { - if (getenv("SPL4PACK")) - return getenv("SPL4PACK"); - else - strcat(filename, "/SPL4-SP7"); - } - else if(!strncmp((char*)&Memory.ROM [0xffc0], "MOMOTETSU HAPPY ",21)) - { - if (getenv("MDHPACK")) - return getenv("MDHPACK"); - else - strcat(filename, "/SMHT-SP7"); - } - else if(!strncmp((char*)&Memory.ROM [0xffc0], "HU TENGAI MAKYO ZERO ", 21)) - { - if (getenv("FEOEZPACK")) - return getenv("FEOEZPACK"); - else - strcat(filename, "/FEOEZSP7"); - } - else if(!strncmp((char*)&Memory.ROM [0xffc0], "JUMP TENGAIMAKYO ZERO",21)) - { - if (getenv("SJNSPACK")) - return getenv("SJNSPACK"); - else - strcat(filename, "/SJUMPSP7"); - } else strcat(filename, "/MISC-SP7"); - return filename; -} -END_EXTERN_C - - -void retro_deinit (void) -{ -} -unsigned retro_get_region (void) -{ - return Settings.PAL ? RETRO_REGION_PAL : RETRO_REGION_NTSC; -} -void retro_get_system_info(struct retro_system_info *info) -{ - info->need_fullpath = true; - info->valid_extensions = "smc|fig|sfc|gd3|gd7|dx2|bsx|swc"; - info->library_version = "v1.4"; - info->library_name = "SNES9x(CATSFC)"; - info->block_extract = false; -} -void retro_get_system_av_info(struct retro_system_av_info *info) -{ - info->geometry.base_width = 256; - info->geometry.base_height = 224; - info->geometry.max_width = 512; - info->geometry.max_height = 512; - info->geometry.aspect_ratio = 4.0 / 3.0; -// if (!Settings.PAL) -// info->timing.fps = 21477272.0 / 357366.0; -// else -// info->timing.fps = 21281370.0 / 425568.0; -// info->timing.sample_rate = 32040.5; - - - info->timing.fps = 60.0; - info->timing.sample_rate = 32040.0; -} - -void retro_reset(void) -{ - -} - - -size_t retro_serialize_size(void) -{ - return 0; -} - -bool retro_serialize(void *data, size_t size) -{ - return false; -} -bool retro_unserialize(const void *data, size_t size) -{ - return false; -} - -void retro_cheat_reset(void) -{ - -} -void retro_cheat_set(unsigned index, bool enabled, const char *code) -{ - -} - -bool retro_load_game(const struct retro_game_info *game) - -{ - Memory.LoadROM(game->path); - return true; -} - -bool retro_load_game_special( - unsigned game_type, - const struct retro_game_info *info, size_t num_info -) -{ - return false; -} -void retro_unload_game(void) -{ - -} - -void *retro_get_memory_data(unsigned id) -{ - return NULL; -} - -size_t retro_get_memory_size(unsigned id) -{ - return 0; -} |