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Diffstat (limited to 'libretro/libretro.cpp')
| -rw-r--r-- | libretro/libretro.cpp | 692 |
1 files changed, 0 insertions, 692 deletions
diff --git a/libretro/libretro.cpp b/libretro/libretro.cpp deleted file mode 100644 index 826e3ca..0000000 --- a/libretro/libretro.cpp +++ /dev/null @@ -1,692 +0,0 @@ -#include <stdio.h> -#include <stdint.h> -#ifndef _MSC_VER -#include <stdbool.h> -#include <unistd.h> -#endif -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <fcntl.h> - -#include "libretro.h" -#include "memstream.h" - -#include "../src/snes9x.h" -#include "../src/memmap.h" -#include "../src/cpuexec.h" -#include "../src/srtc.h" -#include "../src/apu.h" -#include "../src/ppu.h" -#include "../src/snapshot.h" -#include "../src/soundux.h" -#include "../src/cheats.h" -#include "../src/display.h" -#include "../src/os9x_asm_cpu.h" - -#ifdef _3DS -extern "C" void* linearMemAlign(size_t size, size_t alignment); -extern "C" void linearFree(void* mem); -#endif - -#define MAP_BUTTON(id, name) S9xMapButton((id), S9xGetCommandT((name)), false) -#define MAKE_BUTTON(pad, btn) (((pad)<<4)|(btn)) - -#define BTN_POINTER (RETRO_DEVICE_ID_JOYPAD_R + 1) -#define BTN_POINTER2 (BTN_POINTER + 1) - -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; - -static uint32 joys[5]; - -bool8 ROMAPUEnabled = 0; -char currentWorkingDir[MAX_PATH+1] = {0}; - -memstream_t *s_stream; - -int s_open(const char *fname, const char *mode) -{ - s_stream = memstream_open(); - return TRUE; -} - -int s_read(void *p, int l) -{ - return memstream_read(s_stream, p, l); -} - -int s_write(void *p, int l) -{ - return memstream_write(s_stream, p, l); -} - -void s_close() -{ - memstream_close(s_stream); -} - -int (*statef_open)(const char *fname, const char *mode) = s_open; -int (*statef_read)(void *p, int l) = s_read; -int (*statef_write)(void *p, int l) = s_write; -void (*statef_close)() = s_close; - - - -void *retro_get_memory_data(unsigned type) -{ - uint8_t* data; - - switch(type) - { - case RETRO_MEMORY_SAVE_RAM: - data = Memory.SRAM; - break; - case RETRO_MEMORY_SYSTEM_RAM: - data = Memory.RAM; - break; - case RETRO_MEMORY_VIDEO_RAM: - data = Memory.VRAM; - break; - default: - data = NULL; - break; - } - - return data; -} - -size_t retro_get_memory_size(unsigned type) -{ - unsigned size; - - switch(type) - { - case RETRO_MEMORY_SAVE_RAM: - size = (unsigned) (Memory.SRAMSize ? (1 << (Memory.SRAMSize + 3)) * 128 : 0); - if (size > 0x20000) - size = 0x20000; - break; - /*case RETRO_MEMORY_RTC: - size = (Settings.SRTC || Settings.SPC7110RTC)?20:0; - break;*/ - case RETRO_MEMORY_SYSTEM_RAM: - size = 128 * 1024; - break; - case RETRO_MEMORY_VIDEO_RAM: - size = 64 * 1024; - break; - default: - size = 0; - break; - } - - return size; -} - -unsigned retro_api_version(void) -{ - return RETRO_API_VERSION; -} - -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; -} - -static bool use_overscan; - -void retro_set_environment(retro_environment_t cb) -{ - environ_cb = cb; -} - -void retro_get_system_info(struct retro_system_info *info) -{ - info->need_fullpath = false; - info->valid_extensions = "smc|fig|sfc|gd3|gd7|dx2|bsx|swc|zip|SMC|FIG|SFC|BSX|GD3|GD7|DX2|SWC|ZIP"; - info->library_version = "7.2.0"; - info->library_name = "PocketSNES"; - info->block_extract = false; -} - -static int16 audio_buf[0x10000]; -static unsigned avail; -static float samplerate = 32040.5f; - -void S9xGenerateSound() -{ -} - -uint32 S9xReadJoypad(int which1) -{ - if (which1 > 4) - return 0; - return joys[which1]; -} - -void retro_set_controller_port_device(unsigned in_port, unsigned device) -{ -} - -void retro_get_system_av_info(struct retro_system_av_info *info) -{ - info->geometry.base_width = SNES_WIDTH; - info->geometry.base_height = SNES_HEIGHT; - info->geometry.max_width = 512; - info->geometry.max_height = 512; - - if(PPU.ScreenHeight == SNES_HEIGHT_EXTENDED) - info->geometry.base_height = SNES_HEIGHT_EXTENDED; - - if (!Settings.PAL) - info->timing.fps = 21477272.0 / 357366.0; - else - info->timing.fps = 21281370.0 / 425568.0; - - info->timing.sample_rate = samplerate; - info->geometry.aspect_ratio = 4.0f / 3.0f; -} - -static void snes_init (void) -{ - memset(&Settings, 0, sizeof(Settings)); - Settings.JoystickEnabled = FALSE; - Settings.SoundPlaybackRate = samplerate; - Settings.Stereo = TRUE; - Settings.SoundBufferSize = 0; - Settings.CyclesPercentage = 100; - Settings.DisableSoundEcho = FALSE; - Settings.APUEnabled = FALSE; - Settings.H_Max = SNES_CYCLES_PER_SCANLINE; - Settings.SkipFrames = AUTO_FRAMERATE; - Settings.Shutdown = Settings.ShutdownMaster = TRUE; - Settings.FrameTimePAL = 20000; - Settings.FrameTimeNTSC = 16667; - Settings.FrameTime = Settings.FrameTimeNTSC; - Settings.DisableSampleCaching = FALSE; - Settings.DisableMasterVolume = FALSE; - Settings.Mouse = FALSE; - Settings.SuperScope = FALSE; - Settings.MultiPlayer5 = FALSE; - // Settings.ControllerOption = SNES_MULTIPLAYER5; - Settings.ControllerOption = 0; - - Settings.ForceTransparency = FALSE; - Settings.Transparency = TRUE; - Settings.SixteenBit = TRUE; - - Settings.SupportHiRes = FALSE; - Settings.NetPlay = FALSE; - Settings.ServerName [0] = 0; - Settings.AutoSaveDelay = 30; - Settings.ApplyCheats = TRUE; - Settings.TurboMode = FALSE; - Settings.TurboSkipFrames = 15; - Settings.ThreadSound = FALSE; - Settings.SoundSync = FALSE; - Settings.asmspc700 = TRUE; -// Settings.asmspc700 = FALSE; - Settings.SpeedHacks = TRUE; - - Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX; - /* - Settings.SoundPlaybackRate = 5; - Settings.Stereo = TRUE; - Settings.SoundBufferSize = 0; - Settings.DisableSoundEcho = 0; - Settings.AltSampleDecode = 0; - Settings.SoundEnvelopeHeightReading = FALSE; - Settings.FixFrequency = 0; - Settings.CyclesPercentage = 100; - Settings.InterpolatedSound = TRUE; - Settings.APUEnabled = Settings.NextAPUEnabled = TRUE; - Settings.SoundMixInterval = 0; - Settings.H_Max = SNES_CYCLES_PER_SCANLINE; - Settings.SkipFrames = 10; - Settings.ShutdownMaster = TRUE; - Settings.FrameTimePAL = 20000; - Settings.FrameTimeNTSC = 16667; - Settings.DisableSampleCaching = FALSE; - Settings.DisableMasterVolume = FALSE; - Settings.Mouse = FALSE; - Settings.SuperScope = FALSE; - Settings.MultiPlayer5 = FALSE; - Settings.TurboMode = FALSE; - Settings.TurboSkipFrames = 40; - Settings.ControllerOption = SNES_MULTIPLAYER5; - Settings.Transparency = TRUE; - Settings.SixteenBit = TRUE; - Settings.SupportHiRes = TRUE; - Settings.NetPlay = FALSE; - Settings.ServerName [0] = 0; - Settings.ThreadSound = FALSE; - Settings.AutoSaveDelay = 30; - Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX; - Settings.DisplayFrameRate = FALSE; - Settings.ReverseStereo = TRUE; - */ - - CPU.Flags = 0; - - if (!Memory.Init() || !S9xInitAPU()) - { - Memory.Deinit(); - S9xDeinitAPU(); - fprintf(stderr, "[libsnes]: Failed to init Memory or APU.\n"); - exit(1); - } - - if (!S9xInitSound() || !S9xGraphicsInit()) exit(1); - //S9xSetSamplesAvailableCallback(S9xAudioCallback); - - GFX.Pitch = use_overscan ? 1024 : 2048; - - // hack to make sure GFX.Delta is always (2048 * 512 * 2) >> 1, needed for tile16_t.h -#ifdef _3DS - GFX.Screen = (uint8 *) linearMemAlign(2048 * 512 * 2 * 2, 0x80); - memset(GFX.Screen, 0x0, 2048 * 512 * 2 * 2); -#else - GFX.Screen = (uint8 *) calloc(1, 2048 * 512 * 2 * 2); -#endif - GFX.SubScreen = GFX.Screen + 2048 * 512 * 2; - GFX.ZBuffer = (uint8 *) calloc(1, GFX.Pitch * 512 * sizeof(uint16)); - GFX.SubZBuffer = (uint8 *) calloc(1, GFX.Pitch * 512 * sizeof(uint16)); - GFX.Delta = 1048576; //(GFX.SubScreen - GFX.Screen) >> 1; - - if (GFX.Delta != ((GFX.SubScreen - GFX.Screen) >> 1)) - { - printf("BAD DELTA! (is %u, should be %u)\n", ((GFX.SubScreen - GFX.Screen) >> 1), GFX.Delta); - exit(1); - } - - /* controller port 1 */ - //S9xSetController(0, CTL_JOYPAD, 0, 0, 0, 0); - //retro_devices[0] = RETRO_DEVICE_JOYPAD; - - /* controller port 2 */ - //S9xSetController(1, CTL_JOYPAD, 1, 0, 0, 0); - //retro_devices[1] = RETRO_DEVICE_JOYPAD; - - //S9xUnmapAllControls(); - //map_buttons(); - - //S9xSetSoundMute(FALSE); -} - -void retro_init (void) -{ - if (!environ_cb(RETRO_ENVIRONMENT_GET_OVERSCAN, &use_overscan)) - use_overscan = FALSE; - - snes_init(); -} - -/* libsnes uses relative values for analogue devices. - S9x seems to use absolute values, but do convert these into relative values in the core. (Why?!) - Hack around it. :) */ - -void retro_deinit(void) -{ - S9xDeinitAPU(); - Memory.Deinit(); - S9xGraphicsDeinit(); - //S9xUnmapAllControls(); - if(GFX.Screen) -#ifdef _3DS - linearFree(GFX.Screen); -#else - free(GFX.Screen); -#endif - GFX.Screen = NULL; - -} - -void retro_reset (void) -{ - S9xReset(); -} - -//static int16_t retro_mouse_state[2][2] = {{0}, {0}}; -//static int16_t retro_scope_state[2] = {0}; -//static int16_t retro_justifier_state[2][2] = {{0}, {0}}; -void S9xSetButton(int i, uint16 b, bool pressed); - -static void report_buttons (void) -{ - int i, j; - for ( i = 0; i < 5; i++) - { - for (j = 0; j <= RETRO_DEVICE_ID_JOYPAD_R; j++) - { - if (input_cb(i, RETRO_DEVICE_JOYPAD, 0, j)) - joys[i] |= (1 << (15 - j)); - else - joys[i] &= ~(1 << (15 - j)); - } - } -} - -void retro_run (void) -{ - IPPU.RenderThisFrame = TRUE; - S9xMainLoop(); -// asm_S9xMainLoop(); - S9xMixSamples(audio_buf, avail); - audio_batch_cb((int16_t *) audio_buf, avail >> 1); - - poll_cb(); - - report_buttons(); -} - -size_t retro_serialize_size (void) -{ - uint8_t *tmpbuf; - - tmpbuf = (uint8_t*)malloc(5000000); - memstream_set_buffer(tmpbuf, 5000000); - S9xFreezeGame(""); - free(tmpbuf); - return memstream_get_last_size(); -} - -bool retro_serialize(void *data, size_t size) -{ - memstream_set_buffer((uint8_t*)data, size); - if (S9xFreezeGame("") == FALSE) - return FALSE; - - return TRUE; -} - -bool retro_unserialize(const void * data, size_t size) -{ - memstream_set_buffer((uint8_t*)data, size); - if (S9xUnfreezeGame("") == FALSE) - return FALSE; - - return TRUE; -} - -void retro_cheat_reset(void) -{ - S9xDeleteCheats(); -} - -void retro_cheat_set(unsigned index, bool enable, const char* in_code) -{ - // clean input - char clean_code[strlen(in_code)]; - int i,j =0; - for (i = 0; i<strlen(in_code); i++) - { - switch (in_code[i]) - { - case 'a': case 'A': - case 'b': case 'B': - case 'c': case 'C': - case 'd': case 'D': - case 'e': case 'E': - case 'f': case 'F': - - case '-': case '0': - case '1': case '2': case '3': - case '4': case '5': case '6': - case '7': case '8': case '9': - clean_code[j++]=in_code[i]; - break; - default: - break; - } - } - clean_code[j]=0; - uint32 address; - uint8 byte; - - if ( S9xProActionReplayToRaw(clean_code, address, byte) == NULL) - S9xAddCheat(true, true, address, byte); - else if ( S9xGameGenieToRaw(clean_code, address, byte) == NULL) - S9xAddCheat(true, true, address, byte); - // else, silently ignore -} - -bool retro_load_game(const struct retro_game_info *game) -{ - bool8 loaded; - - enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; - if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) - { - fprintf(stderr, "[libretro]: RGB565 is not supported.\n"); - return false; - } - - /* Hack. S9x cannot do stuff from RAM. <_< */ - memstream_set_buffer((uint8_t*)game->data, game->size); - - loaded = Memory.LoadROM(""); - if (!loaded) - { - fprintf(stderr, "[libretro]: Rom loading failed...\n"); - return false; - } - - //S9xGraphicsInit(); - S9xReset(); -// Settings.asmspc700 = false; - CPU.APU_APUExecuting = Settings.APUEnabled = 1; - Settings.SixteenBitSound = true; - so.stereo = Settings.Stereo; - so.playback_rate = Settings.SoundPlaybackRate; - S9xSetPlaybackRate(so.playback_rate); - S9xSetSoundMute(FALSE); - - avail = (int) (samplerate / (Settings.PAL ? 50 : 60)) << 1; - - ZeroMemory(audio_buf, sizeof(audio_buf)); - - 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) -{ } - -unsigned retro_get_region (void) -{ - return Settings.PAL ? RETRO_REGION_PAL : RETRO_REGION_NTSC; -} - -bool8 S9xDeinitUpdate(int width, int height, bool8 sixteen_bit) -{ - int y; - - if (height == 448 || height == 478) - { - /* Pitch 2048 -> 1024, only done once per res-change. */ - if (GFX.Pitch == 2048) - { - for ( y = 1; y < height; y++) - { - uint8_t *src = GFX.Screen + y * 1024; - uint8_t *dst = GFX.Screen + y * 512; - memcpy(dst, src, width * sizeof(uint8_t) * 2); - } - } - GFX.Pitch = 1024; - } - else - { - /* Pitch 1024 -> 2048, only done once per res-change. */ - if (GFX.Pitch == 1024) - { - for ( y = height - 1; y >= 0; y--) - { - uint8_t *src = GFX.Screen + y * 512; - uint8_t *dst = GFX.Screen + y * 1024; - memcpy(dst, src, width * sizeof(uint8_t) * 2); - } - } - GFX.Pitch = 2048; - } - - video_cb(GFX.Screen, width, height, GFX_PITCH); - - return TRUE; -} - - -/* Dummy functions that should probably be implemented correctly later. */ -const char* S9xGetFilename(const char* in) { return in; } -const char* S9xGetFilenameInc(const char* in) { return in; } -const char *S9xGetHomeDirectory() { return NULL; } -const char *S9xGetSnapshotDirectory() { return NULL; } -const char *S9xGetROMDirectory() { return NULL; } -const char* S9xChooseFilename(bool8 a) { return NULL; } -bool8 S9xInitUpdate() { return TRUE; } -bool8 S9xContinueUpdate(int width, int height) { return TRUE; } -void S9xSetPalette() {} -void S9xAutoSaveSRAM() {} -void S9xLoadSDD1Data() {} -bool8 S9xReadMousePosition (int which1_0_to_1, int &x, int &y, uint32 &buttons) { return FALSE; } -bool8 S9xReadSuperScopePosition (int &x, int &y, uint32 &buttons) { return FALSE; } -void JustifierButtons(uint32& x) {} -bool JustifierOffscreen() { return false; } - -START_EXTERN_C - -void S9xToggleSoundChannel (int channel) {} - -bool8 S9xMovieActive() { return FALSE; } -bool8 S9xMoviePlaying() { return FALSE; } -void S9xMovieFreeze() {} -void S9xMovieUnfreeze() {} -int S9xMovieCreate (const char* filename, uint8 controllers_mask, uint8 opts, const wchar_t* metadata, int metadata_length) { return FALSE; } -void S9xMovieStop (bool8 suppress_message) {} -const char *S9xChooseMovieFilename(bool8 read_only) { return NULL; } -void S9xMovieUpdate(bool addFrame) {} -void S9xMovieUpdateOnReset() {} -int S9xMovieOpen(const char* filename, bool8 read_only) { return FALSE; } -uint32 S9xMovieGetFrameCounter() { return 0; } -const char *S9xStringInput(const char *message) { return NULL; } - -END_EXTERN_C - -//void Write16(uint16 v, uint8*& ptr) {} -//uint16 Read16(const uint8*& ptr) { return 0; } - -//void S9xHandlePortCommand(s9xcommand_t cmd, int16 data1, int16 data2) {} -//bool S9xPollButton(uint32 id, bool *pressed) { return false; } -//bool S9xPollPointer(uint32 id, int16 *x, int16 *y) { return false; } -//bool S9xPollAxis(uint32 id, int16 *value) { return false; } - -void S9xExit() { exit(1); } -bool8 S9xOpenSoundDevice (int mode, bool8 stereo, int buffer_size) { - //so.sixteen_bit = 1; - so.stereo = TRUE; - //so.buffer_size = 534; - so.playback_rate = samplerate; - return TRUE; -} - -const char *emptyString = ""; -const char *S9xBasename (const char *filename) { return emptyString; } -bool8 S9xOpenSnapshotFile (const char *base, bool8 read_only, STREAM *file) { *file = OPEN_STREAM(0, 0); return TRUE; } -void S9xCloseSnapshotFile (STREAM file) { CLOSE_STREAM(file); } - -void S9xMessage(int a, int b, const char* msg) -{ - fprintf(stderr, "%s\n", msg); -} - -/* S9x weirdness. */ -#ifndef _WIN32 -void _splitpath (const char * path, char * drive, char * dir, char * fname, char * ext) -{ - const char *slash, *dot; - - slash = strrchr(path, SLASH_CHAR); - dot = strrchr(path, '.'); - - if (dot && slash && dot < slash) - dot = NULL; - - if (!slash) - { - *dir = 0; - - strcpy(fname, path); - - if (dot) - { - fname[dot - path] = 0; - strcpy(ext, dot + 1); - } - else - *ext = 0; - } - else - { - strcpy(dir, path); - dir[slash - path] = 0; - - strcpy(fname, slash + 1); - - if (dot) - { - fname[dot - slash - 1] = 0; - strcpy(ext, dot + 1); - } - else - *ext = 0; - } -} - -void _makepath (char *path, const char * a, const char *dir, const char *fname, const char *ext) -{ - if (dir && *dir) - { - strcpy(path, dir); - strcat(path, SLASH_STR); - } - else - *path = 0; - - strcat(path, fname); - - if (ext && *ext) - { - strcat(path, "."); - strcat(path, ext); - } -} -#endif - |