/* * libretro core glue for PicoDrive * (C) notaz, 2013 * (C) aliaspider, 2016 * (C) Daniel De Matteis, 2013 * (C) kub, 2020 * * This work is licensed under the terms of MAME license. * See COPYING file in the top-level directory. */ #define _GNU_SOURCE 1 // mremap #include #include #include #include #include #ifdef __MACH__ #include #endif #include "libretro-common/include/memmap.h" /* Ouf, libretro-common defines replacement functions, but not the flags :-| */ #ifndef PROT_READ #define PROT_READ 0x1 #define PROT_WRITE 0x2 #define PROT_READWRITE 0x3 #define PROT_EXEC 0x4 #define MAP_FAILED ((void *) -1) #define MAP_ANONYMOUS 0x1 #define MAP_PRIVATE 0x2 #endif #if defined(RENDER_GSKIT_PS2) #include #include "libretro-common/include/libretro_gskit_ps2.h" #include "ps2/asm.h" #else #include #endif #include #ifdef _3DS #include "3ds/3ds_utils.h" #define MEMOP_MAP 4 #define MEMOP_UNMAP 5 #define MEMOP_PROT 6 int svcDuplicateHandle(unsigned int* out, unsigned int original); int svcCloseHandle(unsigned int handle); int svcControlProcessMemory(unsigned int process, void* addr0, void* addr1, unsigned int size, unsigned int type, unsigned int perm); void* linearMemAlign(size_t size, size_t alignment); void linearFree(void* mem); static int ctr_svchack_successful = 0; #elif defined(VITA) #define TARGET_SIZE_2 24 // 2^24 = 16 megabytes #include static int sceBlock; int getVMBlock(); int _newlib_vm_size_user = 1 << TARGET_SIZE_2; #elif defined(__PS3__) #include #include static uint64_t page_table[2] = {0, 0}; #endif #include "libretro_core_options.h" #include #include #include #include #include "../common/input_pico.h" #include "../common/version.h" #include #include static retro_log_printf_t log_cb; static retro_video_refresh_t video_cb; static retro_input_poll_t input_poll_cb; static retro_input_state_t input_state_cb; static retro_environment_t environ_cb; static retro_audio_sample_batch_t audio_batch_cb; #define VOUT_MAX_WIDTH 320 #define VOUT_MAX_HEIGHT 240 #define SND_RATE_DEFAULT 44100 #define SND_RATE_MAX 53267 #ifndef PATH_MAX #define PATH_MAX 4096 #endif static const float VOUT_PAR = 0.0; static const float VOUT_4_3 = (4.0f / 3.0f); static const float VOUT_CRT = (1.29911f); /* Required to allow on the fly changes to 'renderer' */ static int vm_current_start_line = -1; static int vm_current_line_count = -1; static int vm_current_start_col = -1; static int vm_current_col_count = -1; static int vout_16bit = 1; static int vout_format = PDF_RGB555; static void *vout_buf, *vout_ghosting_buf; static int vout_width, vout_height, vout_offset; static float vout_aspect = 0.0; static int vout_ghosting = 0; static bool libretro_update_av_info = false; static bool libretro_update_geometry = false; #if defined(RENDER_GSKIT_PS2) #define VOUT_8BIT_WIDTH 328 #define VOUT_8BIT_HEIGHT 256 RETRO_HW_RENDER_INTEFACE_GSKIT_PS2 *ps2 = NULL; static void *retro_palette; static struct retro_hw_ps2_insets padding; #endif static short ALIGNED(4) sndBuffer[2*SND_RATE_MAX/50]; static void snd_write(int len); char **g_argv; #ifdef _WIN32 #define SLASH '\\' #else #define SLASH '/' #endif /* Frameskipping Support */ static unsigned frameskip_type = 0; static unsigned frameskip_threshold = 0; static uint16_t frameskip_counter = 0; static bool retro_audio_buff_active = false; static unsigned retro_audio_buff_occupancy = 0; static bool retro_audio_buff_underrun = false; /* Maximum number of consecutive frames that * can be skipped */ #define FRAMESKIP_MAX 60 static unsigned audio_latency = 0; static bool update_audio_latency = false; static uint16_t pico_events; int pico_inp_mode; int pico_pen_x = 320/2, pico_pen_y = 240/2; static void retro_audio_buff_status_cb( bool active, unsigned occupancy, bool underrun_likely) { retro_audio_buff_active = active; retro_audio_buff_occupancy = occupancy; retro_audio_buff_underrun = underrun_likely; } static void init_frameskip(void) { if (frameskip_type > 0) { struct retro_audio_buffer_status_callback buf_status_cb; buf_status_cb.callback = retro_audio_buff_status_cb; if (!environ_cb(RETRO_ENVIRONMENT_SET_AUDIO_BUFFER_STATUS_CALLBACK, &buf_status_cb)) { if (log_cb) log_cb(RETRO_LOG_WARN, "Frameskip disabled - frontend does not support audio buffer status monitoring.\n"); retro_audio_buff_active = false; retro_audio_buff_occupancy = 0; retro_audio_buff_underrun = false; audio_latency = 0; } else { /* Frameskip is enabled - increase frontend * audio latency to minimise potential * buffer underruns */ float frame_time_msec = 1000.0f / (Pico.m.pal ? 50.0f : 60.0f); /* Set latency to 6x current frame time... */ audio_latency = (unsigned)((6.0f * frame_time_msec) + 0.5f); /* ...then round up to nearest multiple of 32 */ audio_latency = (audio_latency + 0x1F) & ~0x1F; } } else { environ_cb(RETRO_ENVIRONMENT_SET_AUDIO_BUFFER_STATUS_CALLBACK, NULL); audio_latency = 0; } update_audio_latency = true; } /* functions called by the core */ void cache_flush_d_inval_i(void *start, void *end) { #ifdef __arm__ size_t len = (char *)end - (char *)start; (void)len; #if defined(__BLACKBERRY_QNX__) msync(start, end - start, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE); #elif defined(__MACH__) sys_dcache_flush(start, len); sys_icache_invalidate(start, len); #elif defined(_3DS) ctr_flush_invalidate_cache(); #elif defined(VITA) sceKernelSyncVMDomain(sceBlock, start, len); #else __clear_cache(start, end); #endif #endif } #ifdef RENDER_GSKIT_PS2 /* In PS2 toolchain these aren't yet defined */ void _flush_cache(void *b, void *e) { #if 0 /* which of these is overall faster for lots of small cache updates? */ SyncDCache(b, e); #else FlushCache(0); /* WRITEBACK_DCACHE */ #endif FlushCache(2); /* INVALIDATE_ICACHE */ } int __builtin_parity(unsigned v) { /* credits to bit twiddling hacks, https://graphics.stanford.edu/~seander/bithacks.html */ v ^= v >> 16; v ^= v >> 8; v ^= v >> 4; return (0x6996 >> (v&0xf)) & 1; } #elif defined(PSP) int _flush_cache(char *addr, const int size, const int op) { //sceKernelDcacheWritebackAll(); sceKernelDcacheWritebackRange(addr, size); sceKernelIcacheInvalidateRange(addr, size); return 0; } #endif #ifdef __MACH__ /* calls to this may be generated by the compiler, but it's missing in libc? */ void __clear_cache(void *start, void *end) { size_t len = (char *)end - (char *)start; sys_dcache_flush(start, len); sys_icache_invalidate(start, len); } #endif #ifndef MAP_ANONYMOUS #define MAP_ANONYMOUS MAP_ANON #endif #ifdef _3DS typedef struct { unsigned int requested_map; void* buffer; }pico_mmap_t; pico_mmap_t pico_mmaps[] = { {0x02000000, 0}, {0x06000000, 0}, {NULL, 0} }; void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) { (void)is_fixed; if (ctr_svchack_successful) { pico_mmap_t* pico_mmap; for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) { if ((pico_mmap->requested_map == addr)) { unsigned int ptr_aligned, tmp; unsigned int currentHandle; unsigned int perm = 0b011; if (need_exec) perm = 0b111; size = (size + 0xFFF) & ~0xFFF; pico_mmap->buffer = malloc(size + 0x1000); ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; svcDuplicateHandle(¤tHandle, 0xFFFF8001); if(svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, size, MEMOP_MAP, perm) < 0) { if (log_cb) log_cb(RETRO_LOG_ERROR, "could not map memory @0x%08X\n", pico_mmap->requested_map); exit(1); } svcCloseHandle(currentHandle); return (void*)pico_mmap->requested_map; } } } return malloc(size); } void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) { if (ctr_svchack_successful) { pico_mmap_t* pico_mmap; for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) { if ((pico_mmap->requested_map == (unsigned int)ptr)) { unsigned int ptr_aligned; unsigned int currentHandle; void* tmp; oldsize = (oldsize + 0xFFF) & ~0xFFF; newsize = (newsize + 0xFFF) & ~0xFFF; ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; svcDuplicateHandle(¤tHandle, 0xFFFF8001); svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, oldsize, MEMOP_UNMAP, 0b011); tmp = realloc(pico_mmap->buffer, newsize + 0x1000); if(!tmp) return NULL; pico_mmap->buffer = tmp; ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; svcControlProcessMemory(currentHandle, pico_mmap->requested_map, ptr_aligned, newsize, MEMOP_MAP, 0x3); svcCloseHandle(currentHandle); return ptr; } } } return realloc(ptr, newsize); } void plat_munmap(void *ptr, size_t size) { if (ctr_svchack_successful) { pico_mmap_t* pico_mmap; for (pico_mmap = pico_mmaps; pico_mmap->requested_map; pico_mmap++) { if ((pico_mmap->requested_map == (unsigned int)ptr)) { unsigned int ptr_aligned; unsigned int currentHandle; size = (size + 0xFFF) & ~0xFFF; ptr_aligned = (((unsigned int)pico_mmap->buffer) + 0xFFF) & ~0xFFF; svcDuplicateHandle(¤tHandle, 0xFFFF8001); svcControlProcessMemory(currentHandle, (void*)pico_mmap->requested_map, (void*)ptr_aligned, size, MEMOP_UNMAP, 0b011); svcCloseHandle(currentHandle); free(pico_mmap->buffer); pico_mmap->buffer = NULL; return; } } } free(ptr); } #else void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed) { int flags = MAP_PRIVATE | MAP_ANONYMOUS; void *req, *ret; req = (void *)(uintptr_t)addr; ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0); if (ret == MAP_FAILED) { if (log_cb) log_cb(RETRO_LOG_ERROR, "mmap(%08lx, %zd) failed: %d\n", addr, size, errno); return NULL; } if (addr != 0 && ret != (void *)(uintptr_t)addr) { if (log_cb) log_cb(RETRO_LOG_WARN, "warning: wanted to map @%08lx, got %p\n", addr, ret); if (is_fixed) { munmap(ret, size); return NULL; } } return ret; } void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) { #if defined(__linux__) && !defined(__SWITCH__) void *ret = mremap(ptr, oldsize, newsize, 0); if (ret == MAP_FAILED) return NULL; return ret; #else void *tmp, *ret; size_t preserve_size; preserve_size = oldsize; if (preserve_size > newsize) preserve_size = newsize; tmp = malloc(preserve_size); if (tmp == NULL) return NULL; memcpy(tmp, ptr, preserve_size); munmap(ptr, oldsize); ret = mmap(ptr, newsize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); if (ret == MAP_FAILED) { free(tmp); return NULL; } memcpy(ret, tmp, preserve_size); free(tmp); return ret; #endif } void plat_munmap(void *ptr, size_t size) { if (ptr != NULL) munmap(ptr, size); } #endif // if NULL is returned, static buffer is used void *plat_mem_get_for_drc(size_t size) { void *mem = NULL; #if defined VITA sceKernelGetMemBlockBase(sceBlock, &mem); #elif defined HW_WUP // For WiiU, a slice of RWX memory left from the exploit is used, see: // https://github.com/embercold/pcsx_rearmed/commit/af0453223 mem = (void *)(0x01000000 - size); #elif defined __PS3__ ps3mapi_process_page_allocate(sysProcessGetPid(), size, PAGE_SIZE_AUTO, 0x2F, 1, page_table); mem = (void *)page_table[0]; #endif return mem; } int plat_mem_set_exec(void *ptr, size_t size) { int ret = -1; #ifdef _WIN32 DWORD oldProtect = 0; ret = VirtualProtect(ptr, size, PAGE_EXECUTE_READWRITE, &oldProtect); if (ret == 0 && log_cb) log_cb(RETRO_LOG_ERROR, "VirtualProtect(%p, %d) failed: %d\n", ptr, (int)size, GetLastError()); #elif defined(_3DS) if (ctr_svchack_successful) { unsigned int currentHandle; svcDuplicateHandle(¤tHandle, 0xFFFF8001); ret = svcControlProcessMemory(currentHandle, ptr, 0x0, size, MEMOP_PROT, 0b111); svcCloseHandle(currentHandle); ctr_flush_invalidate_cache(); } else { if (log_cb) log_cb(RETRO_LOG_ERROR, "plat_mem_set_exec called with no svcControlProcessMemory access\n"); exit(1); } #elif defined(VITA) ret = sceKernelOpenVMDomain(); #else ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC); if (ret != 0 && log_cb) log_cb(RETRO_LOG_ERROR, "mprotect(%p, %zd) failed: %d\n", ptr, size, errno); #endif return ret; } static void apply_renderer() { PicoIn.opt &= ~(POPT_ALT_RENDERER|POPT_EN_SOFTSCALE); PicoIn.opt |= POPT_DIS_32C_BORDER; if (vout_format == PDF_NONE) PicoIn.opt |= POPT_ALT_RENDERER; PicoDrawSetOutFormat(vout_format, 0); if (!vout_16bit && vout_format == PDF_8BIT) PicoDrawSetOutBuf(Pico.est.Draw2FB, 328); } void emu_video_mode_change(int start_line, int line_count, int start_col, int col_count) { vm_current_start_line = start_line; vm_current_line_count = line_count; vm_current_start_col = start_col; vm_current_col_count = col_count; // 8bit renderes create a 328x256 CLUT image, while 16bit creates 320x240 RGB #if defined(RENDER_GSKIT_PS2) // calculate the borders of the real image inside the picodrive image vout_width = (vout_16bit ? VOUT_MAX_WIDTH : VOUT_8BIT_WIDTH); vout_height = (vout_16bit ? VOUT_MAX_HEIGHT : VOUT_8BIT_HEIGHT); vout_offset = (vout_16bit ? 0 : col_count == 248 ? 16 : 8); // 8bit has overlap area on the left padding = (struct retro_hw_ps2_insets){start_line, vout_offset, vout_height - line_count - start_line, vout_width - col_count - vout_offset}; int pxsz = (vout_16bit ? 2 : 1); // pixel size: RGB = 16 bits, CLUT = 8 bits memset(vout_buf, 0, pxsz * vout_width * vout_height); memset(retro_palette, 0, gsKit_texture_size_ee(16, 16, GS_PSM_CT16)); PicoDrawSetOutBuf(vout_buf, pxsz * vout_width); if (ps2) { // prepare image as texture for rendering ps2->coreTexture->Width = vout_width; ps2->coreTexture->Height = vout_height; ps2->coreTexture->PSM = (vout_16bit ? GS_PSM_CT16 : GS_PSM_T8); ps2->padding = padding; } #else vout_width = col_count; memset(vout_buf, 0, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); if (vout_16bit) PicoDrawSetOutBuf(vout_buf, vout_width * 2); vout_height = line_count; /* Note: We multiply by 2 here to account for pitch */ vout_offset = vout_width * start_line * 2; /* Redundant sanity check... */ vout_height = (vout_height > VOUT_MAX_HEIGHT) ? VOUT_MAX_HEIGHT : vout_height; vout_offset = (vout_offset > vout_width * (VOUT_MAX_HEIGHT - 1) * 2) ? vout_width * (VOUT_MAX_HEIGHT - 1) * 2 : vout_offset; /* LCD ghosting */ if (vout_ghosting && vout_height == 144) { vout_ghosting_buf = realloc(vout_ghosting_buf, VOUT_MAX_HEIGHT*vout_width*2); memset(vout_ghosting_buf, 0, vout_width*vout_height*2); } #endif Pico.m.dirtyPal = 1; /* Notify frontend of geometry update */ libretro_update_geometry = true; } void emu_32x_startup(void) { PicoIn.filter = EOPT_FILTER_SMOOTHER; // for H32 upscaling PicoDrawSetOutFormat(vout_format, 0); vout_16bit = 1; if ((vm_current_start_line != -1) && (vm_current_line_count != -1) && (vm_current_start_col != -1) && (vm_current_col_count != -1)) emu_video_mode_change( vm_current_start_line, vm_current_line_count, vm_current_start_col, vm_current_col_count); } void lprintf(const char *fmt, ...) { char buffer[256]; va_list ap; va_start(ap, fmt); vsprintf(buffer, fmt, ap); /* TODO - add 'level' param for warning/error messages? */ if (log_cb) log_cb(RETRO_LOG_INFO, "%s", buffer); va_end(ap); } /* libretro */ bool libretro_supports_bitmasks = false; void retro_set_environment(retro_environment_t cb) { bool option_categories_supported; #ifdef USE_LIBRETRO_VFS struct retro_vfs_interface_info vfs_iface_info; #endif static const struct retro_system_content_info_override content_overrides[] = { { "gen|smd|md|32x|sms|gg|sg|sc|68k|sgd|pco", /* extensions */ #if defined(LOW_MEMORY) true, /* need_fullpath */ #else false, /* need_fullpath */ #endif false /* persistent_data */ }, { NULL, false, false } }; environ_cb = cb; libretro_set_core_options(environ_cb, &option_categories_supported); environ_cb(RETRO_ENVIRONMENT_SET_CONTENT_INFO_OVERRIDE, (void*)content_overrides); #ifdef USE_LIBRETRO_VFS vfs_iface_info.required_interface_version = 1; vfs_iface_info.iface = NULL; if (environ_cb(RETRO_ENVIRONMENT_GET_VFS_INTERFACE, &vfs_iface_info)) filestream_vfs_init(&vfs_iface_info); #endif } void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; } void retro_set_audio_sample(retro_audio_sample_t cb) { (void)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) { input_poll_cb = cb; } void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; } unsigned retro_api_version(void) { return RETRO_API_VERSION; } void retro_set_controller_port_device(unsigned port, unsigned device) { } void retro_get_system_info(struct retro_system_info *info) { memset(info, 0, sizeof(*info)); info->library_name = "PicoDrive"; #ifndef GIT_VERSION #define _GIT_VERSION "" #else #define _GIT_VERSION "-" GIT_VERSION #endif info->library_version = VERSION _GIT_VERSION; info->valid_extensions = "bin|gen|smd|md|32x|cue|iso|chd|sms|gg|sg|sc|m3u|68k|sgd|pco"; info->need_fullpath = true; } void retro_get_system_av_info(struct retro_system_av_info *info) { float tv_height = (vout_height > 144 ? Pico.m.pal ? 240 : 224 : 144); float common_width; memset(info, 0, sizeof(*info)); info->timing.fps = Pico.m.pal ? 50 : 60; info->timing.sample_rate = PicoIn.sndRate; info->geometry.base_width = vout_width; info->geometry.base_height = vout_height; info->geometry.max_width = vout_width; info->geometry.max_height = vout_height; common_width = vout_width; if (vout_aspect != 0) common_width = vout_aspect * tv_height; info->geometry.aspect_ratio = common_width / vout_height; } /* savestates */ struct savestate_state { const char *load_buf; char *save_buf; size_t size; size_t pos; }; size_t state_read(void *p, size_t size, size_t nmemb, void *file) { struct savestate_state *state = file; size_t bsize = size * nmemb; if (state->pos + bsize > state->size) { if (log_cb) log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", state->pos + bsize, state->size); bsize = state->size - state->pos; if ((int)bsize <= 0) return 0; } memcpy(p, state->load_buf + state->pos, bsize); state->pos += bsize; return bsize; } size_t state_write(void *p, size_t size, size_t nmemb, void *file) { struct savestate_state *state = file; size_t bsize = size * nmemb; if (state->pos + bsize > state->size) { if (log_cb) log_cb(RETRO_LOG_ERROR, "savestate error: %u/%u\n", state->pos + bsize, state->size); bsize = state->size - state->pos; if ((int)bsize <= 0) return 0; } memcpy(state->save_buf + state->pos, p, bsize); state->pos += bsize; return bsize; } size_t state_skip(void *p, size_t size, size_t nmemb, void *file) { struct savestate_state *state = file; size_t bsize = size * nmemb; state->pos += bsize; return bsize; } size_t state_eof(void *file) { struct savestate_state *state = file; return state->pos >= state->size; } int state_fseek(void *file, long offset, int whence) { struct savestate_state *state = file; switch (whence) { case SEEK_SET: state->pos = offset; break; case SEEK_CUR: state->pos += offset; break; case SEEK_END: state->pos = state->size + offset; break; } return (int)state->pos; } /* savestate sizes vary wildly depending if cd/32x or * carthw is active, so run the whole thing to get size */ size_t retro_serialize_size(void) { struct savestate_state state = { 0, }; unsigned AHW = PicoIn.AHW; int ret; /* we need the max possible size here, so include 32X for MD and MCD */ if (!(AHW & (PAHW_SMS|PAHW_PICO|PAHW_SVP))) PicoIn.AHW |= PAHW_32X; ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek); PicoIn.AHW = AHW; if (ret != 0) return 0; return state.pos; } bool retro_serialize(void *data, size_t size) { struct savestate_state state = { 0, }; int ret; state.save_buf = data; state.size = size; state.pos = 0; ret = PicoStateFP(&state, 1, NULL, state_write, NULL, state_fseek); return ret == 0; } bool retro_unserialize(const void *data, size_t size) { struct savestate_state state = { 0, }; int ret; state.load_buf = data; state.size = size; state.pos = 0; ret = PicoStateFP(&state, 0, state_read, NULL, state_eof, state_fseek); return ret == 0; } typedef struct patch { unsigned int addr; unsigned short data; unsigned char comp; } patch; extern void decode(char *buff, patch *dest); extern uint32_t m68k_read16(uint32_t a); extern void m68k_write16(uint32_t a, uint16_t d); void retro_cheat_reset(void) { int i=0; unsigned int addr; for (i = 0; i < PicoPatchCount; i++) { addr = PicoPatches[i].addr; if (addr < Pico.romsize) { if (PicoPatches[i].active) *(unsigned short *)(Pico.rom + addr) = PicoPatches[i].data_old; } else { if (PicoPatches[i].active) m68k_write16(PicoPatches[i].addr,PicoPatches[i].data_old); } } PicoPatchUnload(); } void retro_cheat_set(unsigned index, bool enabled, const char *code) { patch pt; int array_len = PicoPatchCount; char codeCopy[256]; char *buff; if (*code == '\0') return; strcpy(codeCopy, code); buff = strtok(codeCopy,"+"); while (buff != NULL) { decode(buff, &pt); if (pt.addr == (uint32_t) -1 || pt.data == (uint16_t) -1) { log_cb(RETRO_LOG_ERROR,"CHEATS: Invalid code: %s\n",buff); return; } /* code was good, add it */ if (array_len < PicoPatchCount + 1) { void *ptr; array_len *= 2; array_len++; ptr = realloc(PicoPatches, array_len * sizeof(PicoPatches[0])); if (ptr == NULL) { log_cb(RETRO_LOG_ERROR,"CHEATS: Failed to allocate memory for: %s\n",buff); return; } PicoPatches = ptr; } strcpy(PicoPatches[PicoPatchCount].code, buff); PicoPatches[PicoPatchCount].active = enabled; PicoPatches[PicoPatchCount].addr = pt.addr; PicoPatches[PicoPatchCount].data = pt.data; PicoPatches[PicoPatchCount].comp = pt.comp; if (PicoPatches[PicoPatchCount].addr < Pico.romsize) PicoPatches[PicoPatchCount].data_old = *(uint16_t *)(Pico.rom + PicoPatches[PicoPatchCount].addr); else PicoPatches[PicoPatchCount].data_old = (uint16_t) m68k_read16(PicoPatches[PicoPatchCount].addr); PicoPatchCount++; buff = strtok(NULL,"+"); } } /* multidisk support */ static unsigned int disk_initial_index; static bool disk_ejected; static unsigned int disk_current_index; static unsigned int disk_count; static char disk_initial_path[PATH_MAX]; static struct disks_state { char *fname; char *flabel; } disks[8]; static void get_disk_label(char *disk_label, const char *disk_path, size_t len) { const char *base = NULL; if (!disk_path || (*disk_path == '\0')) return; base = strrchr(disk_path, SLASH); if (!base) base = disk_path; if (*base == SLASH) base++; strncpy(disk_label, base, len - 1); disk_label[len - 1] = '\0'; char *ext = strrchr(disk_label, '.'); if (ext) *ext = '\0'; } static void disk_init(void) { size_t i; disk_ejected = false; disk_current_index = 0; disk_count = 0; for (i = 0; i < sizeof(disks) / sizeof(disks[0]); i++) { if (disks[i].fname != NULL) { free(disks[i].fname); disks[i].fname = NULL; } if (disks[i].flabel != NULL) { free(disks[i].flabel); disks[i].flabel = NULL; } } } static bool disk_set_eject_state(bool ejected) { // TODO? disk_ejected = ejected; return true; } static bool disk_get_eject_state(void) { return disk_ejected; } static unsigned int disk_get_image_index(void) { return disk_current_index; } static bool disk_set_image_index(unsigned int index) { enum cd_track_type cd_type; int ret; if (index >= sizeof(disks) / sizeof(disks[0])) return false; if (disks[index].fname == NULL) { if (log_cb) log_cb(RETRO_LOG_ERROR, "missing disk #%u\n", index); // RetroArch specifies "no disk" with index == count, // so don't fail here.. disk_current_index = index; return true; } if (log_cb) log_cb(RETRO_LOG_INFO, "switching to disk %u: \"%s\"\n", index, disks[index].fname); ret = -1; cd_type = PicoCdCheck(disks[index].fname, NULL); if (cd_type >= 0 && cd_type != CT_UNKNOWN) ret = cdd_load(disks[index].fname, cd_type); if (ret != 0) { if (log_cb) log_cb(RETRO_LOG_ERROR, "Load failed, invalid CD image?\n"); return 0; } disk_current_index = index; return true; } static unsigned int disk_get_num_images(void) { return disk_count; } static bool disk_replace_image_index(unsigned index, const struct retro_game_info *info) { char *old_fname = NULL; char *old_flabel = NULL; bool ret = true; if (index >= sizeof(disks) / sizeof(disks[0])) return false; old_fname = disks[index].fname; old_flabel = disks[index].flabel; if (disks[index].fname != NULL) free(disks[index].fname); disks[index].fname = NULL; if (disks[index].flabel != NULL) free(disks[index].flabel); disks[index].flabel = NULL; if (info != NULL) { char disk_label[PATH_MAX]; disk_label[0] = '\0'; disks[index].fname = strdup(info->path); get_disk_label(disk_label, info->path, PATH_MAX); disks[index].flabel = strdup(disk_label); if (index == disk_current_index) ret = disk_set_image_index(index); } if (old_fname != NULL) free(old_fname); if (old_flabel != NULL) free(old_flabel); return ret; } static bool disk_add_image_index(void) { if (disk_count >= sizeof(disks) / sizeof(disks[0])) return false; disk_count++; return true; } static bool disk_set_initial_image(unsigned index, const char *path) { if (index >= sizeof(disks) / sizeof(disks[0])) return false; if (!path || (*path == '\0')) return false; disk_initial_index = index; strncpy(disk_initial_path, path, sizeof(disk_initial_path) - 1); disk_initial_path[sizeof(disk_initial_path) - 1] = '\0'; return true; } static bool disk_get_image_path(unsigned index, char *path, size_t len) { const char *fname = NULL; if (len < 1) return false; if (index >= sizeof(disks) / sizeof(disks[0])) return false; fname = disks[index].fname; if (!fname || (*fname == '\0')) return false; strncpy(path, fname, len - 1); path[len - 1] = '\0'; return true; } static bool disk_get_image_label(unsigned index, char *label, size_t len) { const char *flabel = NULL; if (len < 1) return false; if (index >= sizeof(disks) / sizeof(disks[0])) return false; flabel = disks[index].flabel; if (!flabel || (*flabel == '\0')) return false; strncpy(label, flabel, len - 1); label[len - 1] = '\0'; return true; } static struct retro_disk_control_callback disk_control = { disk_set_eject_state, disk_get_eject_state, disk_get_image_index, disk_set_image_index, disk_get_num_images, disk_replace_image_index, disk_add_image_index, }; static struct retro_disk_control_ext_callback disk_control_ext = { .set_eject_state = disk_set_eject_state, .get_eject_state = disk_get_eject_state, .get_image_index = disk_get_image_index, .set_image_index = disk_set_image_index, .get_num_images = disk_get_num_images, .replace_image_index = disk_replace_image_index, .add_image_index = disk_add_image_index, .set_initial_image = disk_set_initial_image, .get_image_path = disk_get_image_path, .get_image_label = disk_get_image_label, }; static void disk_tray_open(void) { if (log_cb) log_cb(RETRO_LOG_INFO, "cd tray open\n"); disk_ejected = 1; } static void disk_tray_close(void) { if (log_cb) log_cb(RETRO_LOG_INFO, "cd tray close\n"); disk_ejected = 0; } static char base_dir[1024]; static void extract_directory(char *buf, const char *path, size_t size) { char *base; strncpy(buf, path, size - 1); buf[size - 1] = '\0'; base = strrchr(buf, '/'); if (!base) base = strrchr(buf, '\\'); if (base) *base = '\0'; else { buf[0] = '.'; buf[1] = '\0'; } } static void extract_basename(char *buf, const char *path, size_t size) { const char *base = strrchr(path, '/'); if (!base) base = strrchr(path, '\\'); if (!base) base = path; if (*base == '\\' || *base == '/') base++; strncpy(buf, base, size - 1); buf[size - 1] = '\0'; char *ext = strrchr(buf, '.'); if (ext) *ext = '\0'; } static bool read_m3u(const char *file) { char line[1024]; char name[PATH_MAX]; FILE *f = fopen(file, "r"); if (!f) return false; while (fgets(line, sizeof(line), f) && disk_count < sizeof(disks) / sizeof(disks[0])) { if (line[0] == '#') continue; char *carrige_return = strchr(line, '\r'); if (carrige_return) *carrige_return = '\0'; char *newline = strchr(line, '\n'); if (newline) *newline = '\0'; if (line[0] != '\0') { char disk_label[PATH_MAX]; disk_label[0] = '\0'; snprintf(name, sizeof(name), "%s%c%s", base_dir, SLASH, line); disks[disk_count].fname = strdup(name); get_disk_label(disk_label, name, PATH_MAX); disks[disk_count].flabel = strdup(disk_label); disk_count++; } } fclose(f); return (disk_count != 0); } /* end of multi disk support */ static const char * const biosfiles_us[] = { "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U" }; static const char * const biosfiles_eu[] = { "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E" }; static const char * const biosfiles_jp[] = { "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J" }; static void make_system_path(char *buf, size_t buf_size, const char *name, const char *ext) { const char *dir = NULL; if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir) { snprintf(buf, buf_size, "%s%c%s%s", dir, SLASH, name, ext); } else { snprintf(buf, buf_size, "%s%s", name, ext); } } static const char *find_bios(int *region, const char *cd_fname) { const char * const *files; static char path[256]; int i, count; FILE *f = NULL; if (*region == 4) { // US files = biosfiles_us; count = sizeof(biosfiles_us) / sizeof(char *); } else if (*region == 8) { // EU files = biosfiles_eu; count = sizeof(biosfiles_eu) / sizeof(char *); } else if (*region == 1 || *region == 2) { files = biosfiles_jp; count = sizeof(biosfiles_jp) / sizeof(char *); } else { return NULL; } for (i = 0; i < count; i++) { make_system_path(path, sizeof(path), files[i], ".bin"); f = fopen(path, "rb"); if (f != NULL) break; make_system_path(path, sizeof(path), files[i], ".zip"); f = fopen(path, "rb"); if (f != NULL) break; } if (f != NULL) { if (log_cb) log_cb(RETRO_LOG_INFO, "using bios: %s\n", path); fclose(f); return path; } return NULL; } static void set_memory_maps(void) { if (PicoIn.AHW & PAHW_MCD) { const size_t SCD_BIT = 1ULL << 31ULL; const uint64_t mem = RETRO_MEMDESC_SYSTEM_RAM; struct retro_memory_map mmaps; struct retro_memory_descriptor descs[] = { { mem, PicoMem.ram, 0, 0xFF0000, 0, 0, 0x10000, "68KRAM" }, /* virtual address using SCD_BIT so all 512M of prg_ram can be accessed */ /* at address $80020000 */ { mem, Pico_mcd->prg_ram, 0, SCD_BIT | 0x020000, 0, 0, 0x80000, "PRGRAM" }, }; mmaps.descriptors = descs; mmaps.num_descriptors = sizeof(descs) / sizeof(descs[0]); environ_cb(RETRO_ENVIRONMENT_SET_MEMORY_MAPS, &mmaps); } } bool retro_load_game(const struct retro_game_info *info) { const struct retro_game_info_ext *info_ext = NULL; const unsigned char *content_data = NULL; size_t content_size = 0; char content_path[PATH_MAX]; char content_ext[8]; char carthw_path[PATH_MAX]; enum media_type_e media_type; size_t i; #if defined(_WIN32) char slash = '\\'; #else char slash = '/'; #endif content_path[0] = '\0'; content_ext[0] = '\0'; carthw_path[0] = '\0'; unsigned int cd_index = 0; bool is_m3u = false; struct retro_input_descriptor desc[] = { { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, { 2, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "B" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "C" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X, "Y" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y, "A" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "X" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Z" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Mode" }, { 3, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Start" }, { 0 }, }; struct retro_input_descriptor desc_sms[] = { { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Button 1 Start" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Button 2" }, { 1, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START, "Button Pause" }, { 0 }, }; struct retro_input_descriptor desc_pico[] = { { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "D-Pad Left (violet)" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "D-Pad Up (white)" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "D-Pad Down (orange)" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right (green)" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B, "Red Button" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A, "Pen Button" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,"Switch input" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L, "Previous page" }, { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R, "Next page" }, { 0 }, }; /* Attempt to fetch extended game info */ if (environ_cb(RETRO_ENVIRONMENT_GET_GAME_INFO_EXT, &info_ext)) { #if !defined(LOW_MEMORY) content_data = (const unsigned char *)info_ext->data; content_size = info_ext->size; #endif strncpy(base_dir, info_ext->dir, sizeof(base_dir)); base_dir[sizeof(base_dir) - 1] = '\0'; strncpy(content_ext, info_ext->ext, sizeof(content_ext)); content_ext[sizeof(content_ext) - 1] = '\0'; if (info_ext->file_in_archive) { /* We don't have a 'physical' file in this * case, but the core still needs a filename * in order to detect media type. We therefore * fake it, using the content directory, * canonical content name, and content file * extension */ snprintf(content_path, sizeof(content_path), "%s%c%s.%s", base_dir, slash, info_ext->name, content_ext); } else { strncpy(content_path, info_ext->full_path, sizeof(content_path)); content_path[sizeof(content_path) - 1] = '\0'; } } else { const char *ext = NULL; if (!info || !info->path) { if (log_cb) log_cb(RETRO_LOG_ERROR, "info->path required\n"); return false; } extract_directory(base_dir, info->path, sizeof(base_dir)); strncpy(content_path, info->path, sizeof(content_path)); content_path[sizeof(content_path) - 1] = '\0'; if ((ext = strrchr(info->path, '.'))) { strncpy(content_ext, ext + 1, sizeof(content_ext)); content_ext[sizeof(content_ext) - 1] = '\0'; } } enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565; if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) { if (log_cb) log_cb(RETRO_LOG_ERROR, "RGB565 support required, sorry\n"); return false; } disk_init(); is_m3u = (strcasestr(content_ext, "m3u") != NULL); if (is_m3u) { if (!read_m3u(content_path)) { log_cb(RETRO_LOG_INFO, "failed to read m3u file\n"); return false; } strncpy(content_path, disks[0].fname, sizeof(content_path)); content_path[sizeof(content_path) - 1] = '\0'; } else { char disk_label[PATH_MAX]; disk_label[0] = '\0'; disk_current_index = 0; disk_count = 1; disks[0].fname = strdup(content_path); get_disk_label(disk_label, content_path, PATH_MAX); disks[0].flabel = strdup(disk_label); } /* If this is an M3U file, attempt to set the * initial disk image */ if (is_m3u && (disk_initial_index > 0) && (disk_initial_index < disk_count)) { const char *fname = disks[disk_initial_index].fname; if (fname && (*fname != '\0')) if (strcmp(disk_initial_path, fname) == 0) cd_index = disk_initial_index; /* If we are not loading the first disk in the * M3U list, update the content_path string * that will be passed to PicoLoadMedia() */ if (cd_index != 0) { strncpy(content_path, disks[cd_index].fname, sizeof(content_path)); content_path[sizeof(content_path) - 1] = '\0'; } } make_system_path(carthw_path, sizeof(carthw_path), "carthw", ".cfg"); media_type = PicoLoadMedia(content_path, content_data, content_size, carthw_path, find_bios, NULL); disk_current_index = cd_index; switch (media_type) { case PM_BAD_DETECT: if (log_cb) log_cb(RETRO_LOG_ERROR, "Failed to detect ROM/CD image type.\n"); return false; case PM_BAD_CD: if (log_cb) log_cb(RETRO_LOG_ERROR, "Invalid CD image\n"); return false; case PM_BAD_CD_NO_BIOS: if (log_cb) log_cb(RETRO_LOG_ERROR, "Missing BIOS\n"); return false; case PM_ERROR: if (log_cb) log_cb(RETRO_LOG_ERROR, "Load error\n"); return false; default: break; } if (PicoIn.AHW & PAHW_PICO) environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc_pico); else if (PicoIn.AHW & PAHW_SMS) environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc_sms); else environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc); PicoLoopPrepare(); PicoIn.writeSound = snd_write; memset(sndBuffer, 0, sizeof(sndBuffer)); PicoIn.sndOut = sndBuffer; if (PicoIn.sndRate > 52000 && PicoIn.sndRate < 54000) PicoIn.sndRate = YM2612_NATIVE_RATE(); PsndRerate(0); apply_renderer(); /* Setup retro memory maps */ set_memory_maps(); init_frameskip(); /* Initialisation routines may have 'triggered' * a libretro AV info or geometry update; this * happens automatically after retro_load_game(), * so disable the relevant flags here to avoid * redundant updates on the first call of * retro_run() */ libretro_update_av_info = false; libretro_update_geometry = false; 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 Pico.m.pal ? RETRO_REGION_PAL : RETRO_REGION_NTSC; } void *retro_get_memory_data(unsigned type) { uint8_t* data; switch(type) { case RETRO_MEMORY_SAVE_RAM: /* Note: MCD RAM cart uses Pico.sv.data */ if ((PicoIn.AHW & PAHW_MCD) && !(PicoIn.opt & POPT_EN_MCD_RAMCART)) data = Pico_mcd->bram; else data = Pico.sv.data; break; case RETRO_MEMORY_SYSTEM_RAM: if (PicoIn.AHW & PAHW_SMS) data = PicoMem.zram; else data = PicoMem.ram; break; default: data = NULL; break; } return data; } size_t retro_get_memory_size(unsigned type) { unsigned int i; int sum; switch(type) { case RETRO_MEMORY_SAVE_RAM: if (PicoIn.AHW & PAHW_MCD) { if (PicoIn.opt & POPT_EN_MCD_RAMCART) return 0x12000; else /* bram */ return 0x2000; } if (Pico.m.frame_count == 0) return Pico.sv.size; // if game doesn't write to sram, don't report it to // libretro so that RA doesn't write out zeroed .srm for (i = 0, sum = 0; i < Pico.sv.size; i++) sum |= Pico.sv.data[i]; return (sum != 0) ? Pico.sv.size : 0; case RETRO_MEMORY_SYSTEM_RAM: if (PicoIn.AHW & PAHW_SMS) return 0x2000; else return sizeof(PicoMem.ram); default: return 0; } } void retro_reset(void) { PicoReset(); } static const unsigned short retro_pico_map[] = { [RETRO_DEVICE_ID_JOYPAD_B] = 1 << GBTN_B, [RETRO_DEVICE_ID_JOYPAD_Y] = 1 << GBTN_A, [RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << GBTN_MODE, [RETRO_DEVICE_ID_JOYPAD_START] = 1 << GBTN_START, [RETRO_DEVICE_ID_JOYPAD_UP] = 1 << GBTN_UP, [RETRO_DEVICE_ID_JOYPAD_DOWN] = 1 << GBTN_DOWN, [RETRO_DEVICE_ID_JOYPAD_LEFT] = 1 << GBTN_LEFT, [RETRO_DEVICE_ID_JOYPAD_RIGHT] = 1 << GBTN_RIGHT, [RETRO_DEVICE_ID_JOYPAD_A] = 1 << GBTN_C, [RETRO_DEVICE_ID_JOYPAD_X] = 1 << GBTN_Y, [RETRO_DEVICE_ID_JOYPAD_L] = 1 << GBTN_X, [RETRO_DEVICE_ID_JOYPAD_R] = 1 << GBTN_Z, }; #define RETRO_PICO_MAP_LEN (sizeof(retro_pico_map) / sizeof(retro_pico_map[0])) static int has_4_pads; static void snd_write(int len) { audio_batch_cb(PicoIn.sndOut, len / 4); } static enum input_device input_name_to_val(const char *name) { if (strcmp(name, "3 button pad") == 0) return PICO_INPUT_PAD_3BTN; if (strcmp(name, "6 button pad") == 0) return PICO_INPUT_PAD_6BTN; if (strcmp(name, "team player") == 0) return PICO_INPUT_PAD_TEAM; if (strcmp(name, "4way play") == 0) return PICO_INPUT_PAD_4WAY; if (strcmp(name, "None") == 0) return PICO_INPUT_NOTHING; if (log_cb) log_cb(RETRO_LOG_WARN, "invalid picodrive_input: '%s'\n", name); return PICO_INPUT_PAD_3BTN; } static void update_variables(bool first_run) { struct retro_variable var; int OldPicoRegionOverride; float old_vout_aspect; unsigned old_frameskip_type; int old_vout_format; double new_sound_rate; unsigned short old_snd_filter; int32_t old_snd_filter_range; var.value = NULL; var.key = "picodrive_input1"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { int input = input_name_to_val(var.value); PicoSetInputDevice(0, input); has_4_pads = input == PICO_INPUT_PAD_TEAM || input == PICO_INPUT_PAD_4WAY; } var.value = NULL; var.key = "picodrive_input2"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) PicoSetInputDevice(1, input_name_to_val(var.value)); var.value = NULL; var.key = "picodrive_ramcart"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "enabled") == 0) PicoIn.opt |= POPT_EN_MCD_RAMCART; else PicoIn.opt &= ~POPT_EN_MCD_RAMCART; } var.value = NULL; var.key = "picodrive_smstype"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "Auto") == 0) PicoIn.hwSelect = PHWS_AUTO; else if (strcmp(var.value, "Game Gear") == 0) PicoIn.hwSelect = PHWS_GG; else if (strcmp(var.value, "SG-1000") == 0) PicoIn.hwSelect = PHWS_SG; else PicoIn.hwSelect = PHWS_SMS; } var.value = NULL; var.key = "picodrive_smsfm"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "on") == 0) PicoIn.opt |= POPT_EN_YM2413; else PicoIn.opt &= ~POPT_EN_YM2413; } var.value = NULL; var.key = "picodrive_smsmapper"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "Auto") == 0) PicoIn.mapper = PMS_MAP_AUTO; else if (strcmp(var.value, "Codemasters") == 0) PicoIn.mapper = PMS_MAP_CODEM; else if (strcmp(var.value, "Korea") == 0) PicoIn.mapper = PMS_MAP_KOREA; else if (strcmp(var.value, "Korea MSX") == 0) PicoIn.mapper = PMS_MAP_MSX; else if (strcmp(var.value, "Korea X-in-1") == 0) PicoIn.mapper = PMS_MAP_N32K; else if (strcmp(var.value, "Korea 4-Pak") == 0) PicoIn.mapper = PMS_MAP_N16K; else if (strcmp(var.value, "Korea Janggun") == 0) PicoIn.mapper = PMS_MAP_JANGGUN; else if (strcmp(var.value, "Korea Nemesis") == 0) PicoIn.mapper = PMS_MAP_NEMESIS; else if (strcmp(var.value, "Taiwan 8K RAM") == 0) PicoIn.mapper = PMS_MAP_8KBRAM; else PicoIn.mapper = PMS_MAP_SEGA; } var.value = NULL; var.key = "picodrive_ggghost"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "normal") == 0) vout_ghosting = 2; else if (strcmp(var.value, "weak") == 0) vout_ghosting = 1; else vout_ghosting = 0; } OldPicoRegionOverride = PicoIn.regionOverride; var.value = NULL; var.key = "picodrive_region"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "Auto") == 0) PicoIn.regionOverride = 0; else if (strcmp(var.value, "Japan NTSC") == 0) PicoIn.regionOverride = 1; else if (strcmp(var.value, "Japan PAL") == 0) PicoIn.regionOverride = 2; else if (strcmp(var.value, "US") == 0) PicoIn.regionOverride = 4; else if (strcmp(var.value, "Europe") == 0) PicoIn.regionOverride = 8; } // Update region, fps and sound flags if needed if (Pico.rom && PicoIn.regionOverride != OldPicoRegionOverride) { PicoDetectRegion(); PicoLoopPrepare(); if (PicoIn.sndRate > 52000 && PicoIn.sndRate < 54000) PicoIn.sndRate = YM2612_NATIVE_RATE(); PsndRerate(!first_run); } old_vout_aspect = vout_aspect; var.value = NULL; var.key = "picodrive_aspect"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "4/3") == 0) vout_aspect = VOUT_4_3; else if (strcmp(var.value, "CRT") == 0) vout_aspect = VOUT_CRT; else vout_aspect = VOUT_PAR; } /* Notify frontend of geometry update */ if (vout_aspect != old_vout_aspect) libretro_update_geometry = true; var.value = NULL; var.key = "picodrive_sprlim"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "enabled") == 0) PicoIn.opt |= POPT_DIS_SPRITE_LIM; else PicoIn.opt &= ~POPT_DIS_SPRITE_LIM; } var.value = NULL; var.key = "picodrive_overclk68k"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { PicoIn.overclockM68k = 0; if (var.value[0] == '+') PicoIn.overclockM68k = atoi(var.value + 1); } #ifdef DRC_SH2 var.value = NULL; var.key = "picodrive_drc"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "enabled") == 0) PicoIn.opt |= POPT_EN_DRC; else PicoIn.opt &= ~POPT_EN_DRC; } #endif #ifdef _3DS if(!ctr_svchack_successful) PicoIn.opt &= ~POPT_EN_DRC; #endif var.value = NULL; var.key = "picodrive_dacnoise"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "enabled") == 0) PicoIn.opt |= POPT_EN_FM_DAC; else PicoIn.opt &= ~POPT_EN_FM_DAC; } var.value = NULL; var.key = "picodrive_fm_filter"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "on") == 0) PicoIn.opt |= POPT_EN_FM_FILTER; else PicoIn.opt &= ~POPT_EN_FM_FILTER; } old_snd_filter = PicoIn.opt & POPT_EN_SNDFILTER; var.value = NULL; var.key = "picodrive_audio_filter"; PicoIn.opt &= ~POPT_EN_SNDFILTER; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "low-pass") == 0) PicoIn.opt |= POPT_EN_SNDFILTER; } old_snd_filter_range = PicoIn.sndFilterAlpha; var.value = NULL; var.key = "picodrive_lowpass_range"; PicoIn.sndFilterAlpha = (60 * 0x10000 / 100); if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { PicoIn.sndFilterAlpha = (atoi(var.value) * 0x10000 / 100); } if (((old_snd_filter ^ PicoIn.opt) & POPT_EN_SNDFILTER) || old_snd_filter_range != PicoIn.sndFilterAlpha) { mix_reset (PicoIn.opt & POPT_EN_SNDFILTER ? PicoIn.sndFilterAlpha : 0); } old_frameskip_type = frameskip_type; frameskip_type = 0; var.key = "picodrive_frameskip"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "auto") == 0) frameskip_type = 1; else if (strcmp(var.value, "manual") == 0) frameskip_type = 2; } frameskip_threshold = 33; var.key = "picodrive_frameskip_threshold"; var.value = NULL; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) frameskip_threshold = strtol(var.value, NULL, 10); old_vout_format = vout_format; var.value = NULL; var.key = "picodrive_renderer"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (strcmp(var.value, "fast") == 0) vout_format = PDF_NONE; else if (strcmp(var.value, "good") == 0) vout_format = PDF_8BIT; else if (strcmp(var.value, "accurate") == 0) vout_format = PDF_RGB555; vout_16bit = vout_format == PDF_RGB555 || (PicoIn.AHW & PAHW_32X); apply_renderer(); } var.value = NULL; var.key = "picodrive_sound_rate"; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) { if (!strcmp(var.value, "native")) new_sound_rate = YM2612_NATIVE_RATE(); else new_sound_rate = atoi(var.value); if (new_sound_rate != PicoIn.sndRate) { /* Update the sound rate */ PicoIn.sndRate = new_sound_rate; PsndRerate(!first_run); libretro_update_av_info = true; } } /* setup video if required */ if (vout_format != old_vout_format) { if ((vm_current_start_line != -1) && (vm_current_line_count != -1) && (vm_current_start_col != -1) && (vm_current_col_count != -1)) emu_video_mode_change( vm_current_start_line, vm_current_line_count, vm_current_start_col, vm_current_col_count); } /* Reinitialise frameskipping, if required */ if (((frameskip_type != old_frameskip_type) || (Pico.rom && PicoIn.regionOverride != OldPicoRegionOverride)) && !first_run) init_frameskip(); } void emu_status_msg(const char *format, ...) { va_list vl; int ret; static char msg[512]; memset (msg, 0, sizeof(msg)); va_start(vl, format); ret = vsnprintf(msg, sizeof(msg), format, vl); va_end(vl); static struct retro_message rmsg; rmsg.msg = msg; rmsg.frames = 600; environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &rmsg); } void run_events_pico(unsigned int events) { int lim_x; if (events & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT)) { pico_inp_mode++; if (pico_inp_mode > 2) pico_inp_mode = 0; switch (pico_inp_mode) { case 2: emu_status_msg("Input: Pen on Pad"); break; case 1: emu_status_msg("Input: Pen on Storyware"); break; case 0: emu_status_msg("Input: Joystick"); PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000; break; } } if (events & (1 << RETRO_DEVICE_ID_JOYPAD_L)) { PicoPicohw.page--; if (PicoPicohw.page < 0) PicoPicohw.page = 0; emu_status_msg("Page %i", PicoPicohw.page); } if (events & (1 << RETRO_DEVICE_ID_JOYPAD_R)) { PicoPicohw.page++; if (PicoPicohw.page > 6) PicoPicohw.page = 6; emu_status_msg("Page %i", PicoPicohw.page); } if (pico_inp_mode == 0) return; /* handle other input modes */ if (PicoIn.pad[0] & 1) pico_pen_y--; if (PicoIn.pad[0] & 2) pico_pen_y++; if (PicoIn.pad[0] & 4) pico_pen_x--; if (PicoIn.pad[0] & 8) pico_pen_x++; PicoIn.pad[0] &= ~0x0f; // release UDLR lim_x = (Pico.video.reg[12]&1) ? 319 : 255; if (pico_pen_y < 8) pico_pen_y = 8; if (pico_pen_y > 224 - PICO_PEN_ADJUST_Y) pico_pen_y = 224 - PICO_PEN_ADJUST_Y; if (pico_pen_x < 0) pico_pen_x = 0; if (pico_pen_x > lim_x - PICO_PEN_ADJUST_X) pico_pen_x = lim_x - PICO_PEN_ADJUST_X; PicoPicohw.pen_pos[0] = pico_pen_x; if (!(Pico.video.reg[12] & 1)) PicoPicohw.pen_pos[0] += pico_pen_x / 4; PicoPicohw.pen_pos[0] += 0x3c; PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y); } void retro_run(void) { bool updated = false; int pad, i, padcount; static void *buff; PicoIn.skipFrame = 0; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated) update_variables(false); input_poll_cb(); PicoIn.pad[0] = PicoIn.pad[1] = PicoIn.pad[2] = PicoIn.pad[3] = 0; if (PicoIn.AHW & PAHW_PICO) padcount = 1; else if (PicoIn.AHW & PAHW_SMS) padcount = 2; else padcount = has_4_pads ? 4 : 2; int16_t input[4] = {0, 0}; if (libretro_supports_bitmasks) { for (pad = 0; pad < padcount; pad++) { input[pad] = input_state_cb( pad, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK); } } else { for (pad = 0; pad < padcount; pad++) { for (i = 0; i < RETRO_PICO_MAP_LEN; i++) if (input_state_cb(pad, RETRO_DEVICE_JOYPAD, 0, i)) input[pad] |= 1 << i; } } for (pad = 0; pad < padcount; pad++) for (i = 0; i < RETRO_PICO_MAP_LEN; i++) if (input[pad] & (1 << i)) PicoIn.pad[pad] |= retro_pico_map[i]; if (PicoIn.AHW == PAHW_PICO) { uint16_t ev = input[0] & ((1 << RETRO_DEVICE_ID_JOYPAD_L) | (1 << RETRO_DEVICE_ID_JOYPAD_R) | (1 << RETRO_DEVICE_ID_JOYPAD_SELECT)); uint16_t new_ev = ev & ~pico_events; pico_events = ev; run_events_pico(new_ev); } if (PicoPatches) PicoPatchApply(); /* Check whether current frame should * be skipped */ if ((frameskip_type > 0) && retro_audio_buff_active) { switch (frameskip_type) { case 1: /* auto */ PicoIn.skipFrame = retro_audio_buff_underrun ? 1 : 0; break; case 2: /* manual */ PicoIn.skipFrame = (retro_audio_buff_occupancy < frameskip_threshold) ? 1 : 0; break; default: PicoIn.skipFrame = 0; break; } if (!PicoIn.skipFrame || (frameskip_counter >= FRAMESKIP_MAX)) { PicoIn.skipFrame = 0; frameskip_counter = 0; } else frameskip_counter++; } /* If frameskip settings have changed, update * frontend audio latency */ if (update_audio_latency) { environ_cb(RETRO_ENVIRONMENT_SET_MINIMUM_AUDIO_LATENCY, &audio_latency); update_audio_latency = false; } PicoFrame(); /* Check whether frontend needs to be notified * of timing/geometry changes */ if (libretro_update_av_info || libretro_update_geometry) { struct retro_system_av_info av_info; retro_get_system_av_info(&av_info); environ_cb(libretro_update_av_info ? RETRO_ENVIRONMENT_SET_SYSTEM_AV_INFO : RETRO_ENVIRONMENT_SET_GEOMETRY, &av_info); libretro_update_av_info = false; libretro_update_geometry = false; } /* If frame was skipped, call video_cb() with * a NULL buffer and return immediately */ if (PicoIn.skipFrame) { video_cb(NULL, vout_width, vout_height, vout_width * 2); return; } #if defined(RENDER_GSKIT_PS2) buff = (uint32_t *)RETRO_HW_FRAME_BUFFER_VALID; if (!ps2) { // get access to the graphics hardware if (!environ_cb(RETRO_ENVIRONMENT_GET_HW_RENDER_INTERFACE, (void **)&ps2) || !ps2) { printf("Failed to get HW rendering interface!\n"); return; } if (ps2->interface_version != RETRO_HW_RENDER_INTERFACE_GSKIT_PS2_VERSION) { printf("HW render interface mismatch, expected %u, got %u!\n", RETRO_HW_RENDER_INTERFACE_GSKIT_PS2_VERSION, ps2->interface_version); return; } ps2->coreTexture->ClutPSM = GS_PSM_CT16; ps2->coreTexture->Filter = GS_FILTER_LINEAR; ps2->coreTexture->Clut = retro_palette; ps2->coreTexture->Mem = vout_buf; ps2->coreTexture->Width = vout_width; ps2->coreTexture->Height = vout_height; ps2->coreTexture->PSM = (vout_16bit ? GS_PSM_CT16 : GS_PSM_T8); ps2->padding = padding; } // CLUT update needed? if (!vout_16bit && Pico.m.dirtyPal) { PicoDrawUpdateHighPal(); // Rotate CLUT. PS2 is special since entries in CLUT are not in sequence. unsigned short int *pal=(void *)retro_palette; for (i = 0; i < 256; i+=8) { if ((i&0x18) == 0x08) memcpy(pal+i,Pico.est.HighPal+i+8,16); else if ((i&0x18) == 0x10) memcpy(pal+i,Pico.est.HighPal+i-8,16); else memcpy(pal+i,Pico.est.HighPal+i,16); } } #else if (!vout_16bit) { /* The 8 bit renderers write a CLUT image in Pico.est.Draw2FB, while libretro wants RGB in vout_buf. * We need to manually copy that to vout_buf, applying the CLUT on the way. Especially * with the fast renderer this is improving performance, at the expense of accuracy. */ /* This section is mostly copied from pemu_finalize_frame in platform/linux/emu.c */ unsigned short *pd = (unsigned short *)((char *)vout_buf + vout_offset); /* Skip the leftmost 8 columns (it is used as an overlap area for rendering) */ unsigned char *ps = Pico.est.Draw2FB + vm_current_start_line * 328 + 8; unsigned short *pal = Pico.est.HighPal; int x; if (Pico.m.dirtyPal) PicoDrawUpdateHighPal(); /* 8 bit renderers have an extra offset for SMS wíth 1st tile blanked */ if (vout_width == 248) ps += 8; /* Copy, and skip the leftmost 8 columns again */ for (i = 0; i < vout_height; i++, ps += 8) { for (x = 0; x < vout_width; x+=4) { *pd++ = pal[*ps++]; *pd++ = pal[*ps++]; *pd++ = pal[*ps++]; *pd++ = pal[*ps++]; } ps += 320-vout_width; /* Advance to next line in case of 32col mode */ } } if (vout_ghosting && vout_height == 144) { unsigned short *pd = (unsigned short *)vout_buf; unsigned short *ps = (unsigned short *)vout_ghosting_buf; int y; for (y = 0; y < vout_height; y++) { if (vout_ghosting == 1) v_blend(pd, ps, vout_width, p_075_round); else v_blend(pd, ps, vout_width, p_05_round); pd += vout_width; ps += vout_width; } } buff = (char*)vout_buf + vout_offset; #endif video_cb((short *)buff, vout_width, vout_height, vout_width * 2); } void retro_init(void) { unsigned dci_version = 0; struct retro_log_callback log; int level; level = 0; environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level); if (environ_cb(RETRO_ENVIRONMENT_GET_LOG_INTERFACE, &log)) log_cb = log.log; else log_cb = NULL; environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); if (environ_cb(RETRO_ENVIRONMENT_GET_INPUT_BITMASKS, NULL)) libretro_supports_bitmasks = true; disk_initial_index = 0; disk_initial_path[0] = '\0'; if (environ_cb(RETRO_ENVIRONMENT_GET_DISK_CONTROL_INTERFACE_VERSION, &dci_version) && (dci_version >= 1)) environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_EXT_INTERFACE, &disk_control_ext); else environ_cb(RETRO_ENVIRONMENT_SET_DISK_CONTROL_INTERFACE, &disk_control); #ifdef _3DS ctr_svchack_successful = ctr_svchack_init(); check_rosalina(); #elif defined(VITA) sceBlock = getVMBlock(); #endif PicoIn.opt = POPT_EN_STEREO|POPT_EN_FM | POPT_EN_PSG|POPT_EN_Z80|POPT_EN_GG_LCD | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX | POPT_EN_32X|POPT_EN_PWM | POPT_ACC_SPRITES|POPT_DIS_32C_BORDER; #ifdef __arm__ #ifdef _3DS if (ctr_svchack_successful) #endif PicoIn.opt |= POPT_EN_DRC; #endif struct retro_variable var = { .key = "picodrive_sound_rate" }; if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) PicoIn.sndRate = atoi(var.value); else PicoIn.sndRate = SND_RATE_DEFAULT; PicoIn.autoRgnOrder = 0x184; // US, EU, JP vout_width = VOUT_MAX_WIDTH; vout_height = VOUT_MAX_HEIGHT; #ifdef _3DS vout_buf = linearMemAlign(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2, 0x80); #elif defined(RENDER_GSKIT_PS2) vout_buf = memalign(4096, VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); retro_palette = memalign(128, gsKit_texture_size_ee(16, 16, GS_PSM_CT16)); #else vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2); #endif PicoInit(); //PicoIn.osdMessage = plat_status_msg_busy_next; PicoIn.mcdTrayOpen = disk_tray_open; PicoIn.mcdTrayClose = disk_tray_close; frameskip_type = 0; frameskip_threshold = 0; frameskip_counter = 0; retro_audio_buff_active = false; retro_audio_buff_occupancy = 0; retro_audio_buff_underrun = false; audio_latency = 0; update_audio_latency = false; update_variables(true); } void retro_deinit(void) { size_t i; #ifdef _3DS linearFree(vout_buf); #elif defined(RENDER_GSKIT_PS2) free(vout_buf); free(retro_palette); ps2 = NULL; #elif defined(__PS3__) free(vout_buf); if (page_table[0] > 0 && page_table[1] > 0) ps3mapi_process_page_free(sysProcessGetPid(), 0x2F, page_table); #else free(vout_buf); #endif vout_buf = NULL; if (vout_ghosting_buf) free(vout_ghosting_buf); vout_ghosting_buf = NULL; PicoExit(); disk_init(); libretro_supports_bitmasks = false; }