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1001 lines
22 KiB
C
1001 lines
22 KiB
C
/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
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* Copyright (C) 2010-2011 - Hans-Kristian Arntzen
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*
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* Some code herein may be based on code found in BSNES.
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*
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* SSNES is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with SSNES.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "file.h"
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#include "general.h"
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#include <stdlib.h>
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#include "boolean.h"
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#include "libsnes.hpp"
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#include <string.h>
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#include <time.h>
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#include "dynamic.h"
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#include "movie.h"
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#include "ups.h"
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#include "bps.h"
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#include "strl.h"
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#ifdef HAVE_XML
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#include "sha256.h"
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#endif
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#if defined(_WIN32) && !defined(_XBOX)
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#include <io.h>
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#include <fcntl.h>
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#include <windows.h>
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#ifdef _MSC_VER
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#define setmode _setmode
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#endif
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#elif defined(_XBOX)
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#include <xtl.h>
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#define setmode _setmode
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#else
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#endif
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// Generic file loader.
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ssize_t read_file(const char *path, void **buf)
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{
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void *rom_buf = NULL;
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FILE *file = fopen(path, "rb");
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ssize_t rc = 0;
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size_t len = 0;
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if (!file)
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goto error;
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fseek(file, 0, SEEK_END);
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len = ftell(file);
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rewind(file);
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rom_buf = malloc(len + 1);
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if (!rom_buf)
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{
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SSNES_ERR("Couldn't allocate memory!\n");
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goto error;
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}
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if ((rc = fread(rom_buf, 1, len, file)) < (ssize_t)len)
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SSNES_WARN("Didn't read whole file.\n");
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*buf = rom_buf;
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// Allow for easy reading of strings to be safe.
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// Will only work with sane character formatting (Unix).
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((char*)rom_buf)[len] = '\0';
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fclose(file);
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return rc;
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error:
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if (file)
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fclose(file);
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free(rom_buf);
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*buf = NULL;
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return -1;
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}
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// Reads file content as one string.
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bool read_file_string(const char *path, char **buf)
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{
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*buf = NULL;
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FILE *file = fopen(path, "r");
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size_t len = 0;
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char *ptr = NULL;
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if (!file)
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goto error;
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fseek(file, 0, SEEK_END);
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len = ftell(file) + 2; // Takes account of being able to read in EOF and '\0' at end.
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rewind(file);
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*buf = (char*)calloc(len, sizeof(char));
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if (!*buf)
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goto error;
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ptr = *buf;
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while (ptr && !feof(file))
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{
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size_t bufsize = (size_t)(((ptrdiff_t)*buf + (ptrdiff_t)len) - (ptrdiff_t)ptr);
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fgets(ptr, bufsize, file);
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ptr += strlen(ptr);
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}
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ptr = strchr(ptr, EOF);
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if (ptr)
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*ptr = '\0';
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fclose(file);
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return true;
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error:
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if (file)
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fclose(file);
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if (*buf)
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free(*buf);
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return false;
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}
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enum patch_type
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{
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PATCH_NONE,
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PATCH_UPS,
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PATCH_BPS
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};
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static void patch_rom(uint8_t **buf, ssize_t *size)
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{
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uint8_t *ret_buf = *buf;
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ssize_t ret_size = *size;
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ssize_t patch_size = 0;
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void *patch_data = NULL;
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enum patch_type type = PATCH_NONE;
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bool success = false;
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if (g_extern.ups_pref && g_extern.bps_pref)
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{
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SSNES_WARN("Both UPS and BPS patch explicitly defined, ignoring both ...\n");
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return;
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}
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if (!g_extern.bps_pref && *g_extern.ups_name && (patch_size = read_file(g_extern.ups_name, &patch_data)) >= 0)
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type = PATCH_UPS;
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else if (!g_extern.ups_pref && *g_extern.bps_name && (patch_size = read_file(g_extern.bps_name, &patch_data)) >= 0)
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type = PATCH_BPS;
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if (type == PATCH_NONE)
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{
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SSNES_LOG("Did not find a valid ROM patch.\n");
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return;
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}
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switch (type)
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{
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case PATCH_UPS:
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SSNES_LOG("Found UPS file in \"%s\", attempting to patch ...\n", g_extern.ups_name);
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break;
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case PATCH_BPS:
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SSNES_LOG("Found BPS file in \"%s\", attempting to patch ...\n", g_extern.bps_name);
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break;
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default:
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return; // Should not happen, but.
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}
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size_t target_size = ret_size * 4; // Just to be sure ...
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uint8_t *patched_rom = (uint8_t*)malloc(target_size);
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if (!patched_rom)
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{
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SSNES_ERR("Failed to allocate memory for patched ROM ...\n");
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goto error;
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}
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switch (type)
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{
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case PATCH_UPS:
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{
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ups_error_t err = ups_apply_patch((const uint8_t*)patch_data, patch_size, ret_buf, ret_size, patched_rom, &target_size);
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if (err == UPS_SUCCESS)
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{
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SSNES_LOG("ROM patched successfully (UPS)!\n");
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success = true;
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}
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else
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SSNES_ERR("Failed to patch UPS: Error #%u\n", (unsigned)err);
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break;
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}
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case PATCH_BPS:
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{
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bps_error_t err = bps_apply_patch((const uint8_t*)patch_data, patch_size, ret_buf, ret_size, patched_rom, &target_size);
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if (err == BPS_SUCCESS)
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{
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SSNES_LOG("ROM patched successfully (BPS)!\n");
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success = true;
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}
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else
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SSNES_ERR("Failed to patch BPS: Error #%u\n", (unsigned)err);
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break;
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}
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default:
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return;
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}
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if (success)
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{
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free(ret_buf);
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*buf = patched_rom;
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*size = target_size;
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}
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if (patch_data)
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free(patch_data);
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return;
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error:
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*buf = ret_buf;
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*size = ret_size;
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if (patch_data)
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free(patch_data);
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}
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// Load SNES rom only. Applies a hack for headered ROMs.
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static ssize_t read_rom_file(FILE* file, void** buf)
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{
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ssize_t ret = 0;
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uint8_t *ret_buf = NULL;
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if (file == NULL) // stdin
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{
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#if defined(_WIN32) && !defined(_XBOX)
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setmode(0, O_BINARY);
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#endif
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SSNES_LOG("Reading ROM from stdin ...\n");
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size_t buf_size = 0xFFFFF; // Some initial guesstimate.
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size_t buf_ptr = 0;
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uint8_t *rom_buf = (uint8_t*)malloc(buf_size);
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if (rom_buf == NULL)
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{
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SSNES_ERR("Couldn't allocate memory!\n");
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return -1;
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}
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for (;;)
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{
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size_t ret = fread(rom_buf + buf_ptr, 1, buf_size - buf_ptr, stdin);
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buf_ptr += ret;
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// We've reached the end
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if (buf_ptr < buf_size)
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break;
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rom_buf = (uint8_t*)realloc(rom_buf, buf_size * 2);
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if (rom_buf == NULL)
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{
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SSNES_ERR("Couldn't allocate memory!\n");
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return -1;
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}
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buf_size *= 2;
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}
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ret_buf = rom_buf;
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ret = buf_ptr;
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}
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else
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{
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fseek(file, 0, SEEK_END);
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ret = ftell(file);
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rewind(file);
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void *rom_buf = malloc(ret);
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if (rom_buf == NULL)
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{
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SSNES_ERR("Couldn't allocate memory!\n");
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return -1;
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}
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if (fread(rom_buf, 1, ret, file) < (size_t)ret)
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{
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SSNES_ERR("Didn't read whole file.\n");
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free(rom_buf);
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return -1;
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}
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ret_buf = (uint8_t*)rom_buf;
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}
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// Remove copier header if present (512 first bytes).
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if ((ret & 0x7fff) == 512)
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{
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memmove(ret_buf, ret_buf + 512, ret - 512);
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ret -= 512;
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}
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// Attempt to apply a patch :)
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patch_rom(&ret_buf, &ret);
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g_extern.cart_crc = crc32_calculate(ret_buf, ret);
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#ifdef HAVE_XML
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sha256_hash(g_extern.sha256, ret_buf, ret);
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SSNES_LOG("SHA256 sum: %s\n", g_extern.sha256);
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#endif
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*buf = ret_buf;
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return ret;
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}
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// Dump stuff to file.
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static bool dump_to_file(const char *path, const void *data, size_t size)
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{
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FILE *file = fopen(path, "wb");
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if (!file)
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return false;
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else
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{
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bool ret = fwrite(data, 1, size, file) == size;
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fclose(file);
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return ret;
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}
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}
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static const char *ramtype2str(int type)
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{
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switch (type)
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{
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case SNES_MEMORY_CARTRIDGE_RAM:
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case SNES_MEMORY_GAME_BOY_RAM:
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case SNES_MEMORY_BSX_RAM:
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return ".srm";
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case SNES_MEMORY_CARTRIDGE_RTC:
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case SNES_MEMORY_GAME_BOY_RTC:
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return ".rtc";
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case SNES_MEMORY_BSX_PRAM:
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return ".pram";
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case SNES_MEMORY_SUFAMI_TURBO_A_RAM:
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return ".aram";
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case SNES_MEMORY_SUFAMI_TURBO_B_RAM:
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return ".bram";
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default:
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return "";
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}
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}
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// Attempt to save valuable RAM data somewhere ...
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static void dump_to_file_desperate(const void *data, size_t size, int type)
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{
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#if defined(_WIN32) && !defined(_XBOX)
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const char *base = getenv("APPDATA");
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#elif defined(__CELLOS_LV2__) || defined(_XBOX)
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const char *base = NULL;
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#else
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const char *base = getenv("HOME");
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#endif
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if (!base)
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goto error;
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char path[PATH_MAX];
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snprintf(path, sizeof(path), "%s/SSNES-recovery-", base);
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char timebuf[PATH_MAX];
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time_t time_;
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time(&time_);
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strftime(timebuf, sizeof(timebuf), "%Y-%m-%d-%H-%M-%S", localtime(&time_));
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strlcat(path, timebuf, sizeof(path));
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strlcat(path, ramtype2str(type), sizeof(path));
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if (dump_to_file(path, data, size))
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SSNES_WARN("Succeeded in saving RAM data to \"%s\". Phew! :D\n", path);
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else
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goto error;
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return;
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error:
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SSNES_WARN("Failed ... Tough luck ... :(\n");
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}
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bool save_state(const char *path)
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{
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SSNES_LOG("Saving state: \"%s\".\n", path);
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size_t size = psnes_serialize_size();
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if (size == 0)
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return false;
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void *data = malloc(size);
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if (!data)
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{
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SSNES_ERR("Failed to allocate memory for save state buffer.\n");
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return false;
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}
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SSNES_LOG("State size: %d bytes.\n", (int)size);
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bool ret = psnes_serialize((uint8_t*)data, size);
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if (ret)
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ret = dump_to_file(path, data, size);
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if (!ret)
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SSNES_ERR("Failed to save state to \"%s\".\n", path);
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free(data);
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return ret;
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}
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bool load_state(const char *path)
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{
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SSNES_LOG("Loading state: \"%s\".\n", path);
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void *buf = NULL;
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ssize_t size = read_file(path, &buf);
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if (size < 0)
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{
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SSNES_ERR("Failed to load state from \"%s\".\n", path);
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return false;
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}
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bool ret = true;
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SSNES_LOG("State size: %d bytes.\n", (int)size);
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uint8_t *block_buf[2] = {NULL, NULL};
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int block_type[2] = {-1, -1};
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unsigned block_size[2] = {0};
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if (g_settings.block_sram_overwrite)
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{
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SSNES_LOG("Blocking SRAM overwrite!\n");
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switch (g_extern.game_type)
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{
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case SSNES_CART_NORMAL:
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block_type[0] = SNES_MEMORY_CARTRIDGE_RAM;
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block_type[1] = SNES_MEMORY_CARTRIDGE_RTC;
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break;
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case SSNES_CART_BSX:
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case SSNES_CART_BSX_SLOTTED:
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block_type[0] = SNES_MEMORY_BSX_RAM;
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block_type[1] = SNES_MEMORY_BSX_PRAM;
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break;
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case SSNES_CART_SUFAMI:
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block_type[0] = SNES_MEMORY_SUFAMI_TURBO_A_RAM;
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block_type[1] = SNES_MEMORY_SUFAMI_TURBO_B_RAM;
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break;
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case SSNES_CART_SGB:
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block_type[0] = SNES_MEMORY_GAME_BOY_RAM;
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block_type[1] = SNES_MEMORY_GAME_BOY_RTC;
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break;
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}
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}
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for (unsigned i = 0; i < 2; i++)
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if (block_type[i] != -1)
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block_size[i] = psnes_get_memory_size(block_type[i]);
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for (unsigned i = 0; i < 2; i++)
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if (block_size[i])
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block_buf[i] = (uint8_t*)malloc(block_size[i]);
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// Backup current SRAM which is overwritten by unserialize.
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for (unsigned i = 0; i < 2; i++)
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{
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if (block_buf[i])
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{
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const uint8_t *ptr = psnes_get_memory_data(block_type[i]);
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if (ptr)
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memcpy(block_buf[i], ptr, block_size[i]);
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}
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}
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ret = psnes_unserialize((uint8_t*)buf, size);
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// Flush back :D
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for (unsigned i = 0; i < 2 && ret; i++)
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{
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if (block_buf[i])
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{
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uint8_t *ptr = psnes_get_memory_data(block_type[i]);
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if (ptr)
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memcpy(ptr, block_buf[i], block_size[i]);
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}
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}
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for (unsigned i = 0; i < 2; i++)
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if (block_buf[i])
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free(block_buf[i]);
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free(buf);
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return ret;
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}
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void load_ram_file(const char *path, int type)
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{
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size_t size = psnes_get_memory_size(type);
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uint8_t *data = psnes_get_memory_data(type);
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if (size == 0 || !data)
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return;
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void *buf = NULL;
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ssize_t rc = read_file(path, &buf);
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if (rc > 0 && rc <= (ssize_t)size)
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memcpy(data, buf, rc);
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free(buf);
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}
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void save_ram_file(const char *path, int type)
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{
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size_t size = psnes_get_memory_size(type);
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uint8_t *data = psnes_get_memory_data(type);
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if (data && size > 0)
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{
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if (!dump_to_file(path, data, size))
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{
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SSNES_ERR("Failed to save SNES RAM!\n");
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SSNES_WARN("Attempting to recover ...\n");
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dump_to_file_desperate(data, size, type);
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}
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}
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}
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static char *load_xml_map(const char *path)
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{
|
|
char *xml_buf = NULL;
|
|
if (*path)
|
|
{
|
|
if (!read_file_string(path, &xml_buf))
|
|
SSNES_LOG("Did not find XML memory map in \"%s\"\n", path);
|
|
else
|
|
SSNES_LOG("Found XML memory map in \"%s\"\n", path);
|
|
}
|
|
|
|
return xml_buf;
|
|
}
|
|
|
|
static bool load_sgb_rom(void)
|
|
{
|
|
void *rom_buf = NULL;
|
|
ssize_t rom_len = 0;
|
|
|
|
FILE *extra_rom = NULL;
|
|
void *extra_rom_buf = NULL;
|
|
ssize_t extra_rom_len = 0;
|
|
char *xml_buf = 0;
|
|
bool ret = true;
|
|
|
|
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
|
|
{
|
|
SSNES_ERR("Could not read ROM file.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
if ((extra_rom_len = read_file(g_extern.gb_rom_path, &extra_rom_buf)) == -1)
|
|
{
|
|
SSNES_ERR("Cannot read GameBoy rom.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
xml_buf = load_xml_map(g_extern.xml_name);
|
|
|
|
if (!psnes_load_cartridge_super_game_boy(
|
|
xml_buf, (const uint8_t*)rom_buf, rom_len,
|
|
NULL, (const uint8_t*)extra_rom_buf, extra_rom_len))
|
|
{
|
|
SSNES_ERR("Cannot load SGB/GameBoy rom.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
if (xml_buf)
|
|
free(xml_buf);
|
|
|
|
end:
|
|
if (g_extern.rom_file)
|
|
fclose(g_extern.rom_file);
|
|
if (extra_rom)
|
|
fclose(extra_rom);
|
|
free(rom_buf);
|
|
free(extra_rom_buf);
|
|
return ret;
|
|
}
|
|
|
|
static bool load_bsx_rom(bool slotted)
|
|
{
|
|
void *rom_buf = NULL;
|
|
ssize_t rom_len = 0;
|
|
|
|
FILE *extra_rom = NULL;
|
|
void *extra_rom_buf = NULL;
|
|
ssize_t extra_rom_len = 0;
|
|
char *xml_buf = 0;
|
|
bool ret = true;
|
|
|
|
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
|
|
{
|
|
SSNES_ERR("Could not read ROM file.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
if ((extra_rom_len = read_file(g_extern.bsx_rom_path, &extra_rom_buf)) == -1)
|
|
{
|
|
SSNES_ERR("Cannot read BSX game rom.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
xml_buf = load_xml_map(g_extern.xml_name);
|
|
|
|
if (slotted)
|
|
{
|
|
if (!psnes_load_cartridge_bsx_slotted(
|
|
xml_buf, (const uint8_t*)rom_buf, rom_len,
|
|
NULL, (const uint8_t*)extra_rom_buf, extra_rom_len))
|
|
{
|
|
SSNES_ERR("Cannot load BSX slotted rom.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if (!psnes_load_cartridge_bsx(
|
|
NULL, (const uint8_t*)rom_buf, rom_len,
|
|
NULL, (const uint8_t*)extra_rom_buf, extra_rom_len))
|
|
{
|
|
SSNES_ERR("Cannot load BSX rom.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
if (xml_buf)
|
|
free(xml_buf);
|
|
|
|
end:
|
|
if (g_extern.rom_file)
|
|
fclose(g_extern.rom_file);
|
|
if (extra_rom)
|
|
fclose(extra_rom);
|
|
free(rom_buf);
|
|
free(extra_rom_buf);
|
|
return ret;
|
|
}
|
|
|
|
static bool load_sufami_rom(void)
|
|
{
|
|
void *rom_buf = NULL;
|
|
ssize_t rom_len = 0;
|
|
|
|
FILE *extra_rom[2] = {NULL};
|
|
void *extra_rom_buf[2] = {NULL};
|
|
ssize_t extra_rom_len[2] = {0};
|
|
char *xml_buf = 0;
|
|
const char *roms[2] = {0};
|
|
bool ret = true;
|
|
|
|
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
|
|
{
|
|
SSNES_ERR("Could not read ROM file.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
roms[0] = g_extern.sufami_rom_path[0];
|
|
roms[1] = g_extern.sufami_rom_path[1];
|
|
|
|
for (unsigned i = 0; i < 2; i++)
|
|
{
|
|
if (*(roms[i]))
|
|
{
|
|
if ((extra_rom_len[i] = read_file(roms[i], &extra_rom_buf[i])) == -1)
|
|
{
|
|
SSNES_ERR("Cannot read Sufami game rom.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
|
|
xml_buf = load_xml_map(g_extern.xml_name);
|
|
|
|
if (!psnes_load_cartridge_sufami_turbo(
|
|
xml_buf, (const uint8_t*)rom_buf, rom_len,
|
|
NULL, (const uint8_t*)extra_rom_buf[0], extra_rom_len[0],
|
|
NULL, (const uint8_t*)extra_rom_buf[1], extra_rom_len[1]))
|
|
{
|
|
SSNES_ERR("Cannot load Sufami Turbo rom.\n");
|
|
ret = false;
|
|
goto end;
|
|
}
|
|
|
|
if (xml_buf)
|
|
free(xml_buf);
|
|
|
|
end:
|
|
if (g_extern.rom_file)
|
|
fclose(g_extern.rom_file);
|
|
for (unsigned i = 0; i < 2; i++)
|
|
{
|
|
if (extra_rom[i])
|
|
fclose(extra_rom[i]);
|
|
free(extra_rom_buf[i]);
|
|
}
|
|
free(rom_buf);
|
|
return ret;
|
|
}
|
|
|
|
static bool load_normal_rom(void)
|
|
{
|
|
void *rom_buf = NULL;
|
|
ssize_t rom_len = 0;
|
|
|
|
if (!g_extern.system.need_fullpath)
|
|
{
|
|
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
|
|
{
|
|
SSNES_ERR("Could not read ROM file.\n");
|
|
return false;
|
|
}
|
|
|
|
if (g_extern.rom_file)
|
|
fclose(g_extern.rom_file);
|
|
|
|
SSNES_LOG("ROM size: %d bytes\n", (int)rom_len);
|
|
}
|
|
else
|
|
{
|
|
if (!g_extern.rom_file)
|
|
{
|
|
SSNES_ERR("Implementation requires a full path to be set, cannot load ROM from stdin. Aborting ...\n");
|
|
return false;
|
|
}
|
|
|
|
fclose(g_extern.rom_file);
|
|
SSNES_LOG("ROM loading skipped. Implementation will load it on its own.\n");
|
|
}
|
|
|
|
char *xml_buf = load_xml_map(g_extern.xml_name);
|
|
|
|
if (!psnes_load_cartridge_normal(xml_buf, (const uint8_t*)rom_buf, rom_len))
|
|
{
|
|
SSNES_ERR("ROM file is not valid!\n");
|
|
free(rom_buf);
|
|
free(xml_buf);
|
|
return false;
|
|
}
|
|
|
|
free(xml_buf);
|
|
free(rom_buf);
|
|
return true;
|
|
}
|
|
|
|
bool init_rom_file(enum ssnes_game_type type)
|
|
{
|
|
switch (type)
|
|
{
|
|
case SSNES_CART_SGB:
|
|
if (!load_sgb_rom())
|
|
return false;
|
|
break;
|
|
|
|
case SSNES_CART_NORMAL:
|
|
if (!load_normal_rom())
|
|
return false;
|
|
break;
|
|
|
|
case SSNES_CART_BSX:
|
|
if (!load_bsx_rom(false))
|
|
return false;
|
|
break;
|
|
|
|
case SSNES_CART_BSX_SLOTTED:
|
|
if (!load_bsx_rom(true))
|
|
return false;
|
|
break;
|
|
|
|
case SSNES_CART_SUFAMI:
|
|
if (!load_sufami_rom())
|
|
return false;
|
|
break;
|
|
|
|
default:
|
|
SSNES_ERR("Invalid ROM type!\n");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Yep, this is C alright ;)
|
|
char **dir_list_new(const char *dir, const char *ext)
|
|
{
|
|
size_t cur_ptr = 0;
|
|
size_t cur_size = 32;
|
|
char **dir_list = NULL;
|
|
|
|
#ifdef _WIN32
|
|
WIN32_FIND_DATA ffd;
|
|
HANDLE hFind = INVALID_HANDLE_VALUE;
|
|
|
|
char path_buf[PATH_MAX];
|
|
|
|
if (strlcpy(path_buf, dir, sizeof(path_buf)) >= sizeof(path_buf))
|
|
goto error;
|
|
if (strlcat(path_buf, "/*", sizeof(path_buf)) >= sizeof(path_buf))
|
|
goto error;
|
|
|
|
if (ext)
|
|
{
|
|
if (strlcat(path_buf, ext, sizeof(path_buf)) >= sizeof(path_buf))
|
|
goto error;
|
|
}
|
|
|
|
hFind = FindFirstFile(path_buf, &ffd);
|
|
if (hFind == INVALID_HANDLE_VALUE)
|
|
goto error;
|
|
#else
|
|
DIR *directory = NULL;
|
|
const struct dirent *entry = NULL;
|
|
|
|
directory = opendir(dir);
|
|
if (!directory)
|
|
goto error;
|
|
#endif
|
|
|
|
dir_list = (char**)calloc(cur_size, sizeof(char*));
|
|
if (!dir_list)
|
|
goto error;
|
|
|
|
#ifdef _WIN32 // Hard to read? Blame non-POSIX heathens!
|
|
do
|
|
#else
|
|
while ((entry = readdir(directory)))
|
|
#endif
|
|
{
|
|
// Not a perfect search of course, but hopefully good enough in practice.
|
|
#ifdef _WIN32
|
|
if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
continue;
|
|
if (ext && !strstr(ffd.cFileName, ext))
|
|
continue;
|
|
#else
|
|
if (ext && !strstr(entry->d_name, ext))
|
|
continue;
|
|
#endif
|
|
|
|
dir_list[cur_ptr] = (char*)malloc(PATH_MAX);
|
|
if (!dir_list[cur_ptr])
|
|
goto error;
|
|
|
|
strlcpy(dir_list[cur_ptr], dir, PATH_MAX);
|
|
strlcat(dir_list[cur_ptr], "/", PATH_MAX);
|
|
#ifdef _WIN32
|
|
strlcat(dir_list[cur_ptr], ffd.cFileName, PATH_MAX);
|
|
#else
|
|
strlcat(dir_list[cur_ptr], entry->d_name, PATH_MAX);
|
|
#endif
|
|
|
|
cur_ptr++;
|
|
if (cur_ptr + 1 == cur_size) // Need to reserve for NULL.
|
|
{
|
|
cur_size *= 2;
|
|
dir_list = (char**)realloc(dir_list, cur_size * sizeof(char*));
|
|
if (!dir_list)
|
|
goto error;
|
|
|
|
// Make sure it's all NULL'd out since we cannot rely on realloc to do this.
|
|
memset(dir_list + cur_ptr, 0, (cur_size - cur_ptr) * sizeof(char*));
|
|
}
|
|
}
|
|
#if defined(_WIN32)
|
|
while (FindNextFile(hFind, &ffd) != 0);
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
FindClose(hFind);
|
|
#else
|
|
closedir(directory);
|
|
#endif
|
|
return dir_list;
|
|
|
|
error:
|
|
SSNES_ERR("Failed to open directory: \"%s\"\n", dir);
|
|
#ifdef _WIN32
|
|
if (hFind != INVALID_HANDLE_VALUE)
|
|
FindClose(hFind);
|
|
#else
|
|
if (directory)
|
|
closedir(directory);
|
|
#endif
|
|
dir_list_free(dir_list);
|
|
return NULL;
|
|
}
|
|
|
|
void dir_list_free(char **dir_list)
|
|
{
|
|
if (!dir_list)
|
|
return;
|
|
|
|
char **orig = dir_list;
|
|
while (*dir_list)
|
|
free(*dir_list++);
|
|
free(orig);
|
|
}
|
|
|
|
bool path_is_directory(const char *path)
|
|
{
|
|
#ifdef _WIN32
|
|
return GetFileAttributes(path) == FILE_ATTRIBUTE_DIRECTORY;
|
|
#elif defined(__CELLOS_LV2__)
|
|
return false; // STUB
|
|
#elif defined(XENON)
|
|
// Dummy
|
|
(void)path;
|
|
return false;
|
|
#else
|
|
struct stat buf;
|
|
if (stat(path, &buf) < 0)
|
|
return false;
|
|
|
|
return S_ISDIR(buf.st_mode);
|
|
#endif
|
|
}
|
|
|
|
bool path_file_exists(const char *path)
|
|
{
|
|
FILE *dummy = fopen(path, "rb");
|
|
if (dummy)
|
|
{
|
|
fclose(dummy);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void fill_pathname(char *out_path, const char *in_path, const char *replace, size_t size)
|
|
{
|
|
char tmp_path[PATH_MAX];
|
|
|
|
ssnes_assert(strlcpy(tmp_path, in_path, sizeof(tmp_path)) < sizeof(tmp_path));
|
|
char *tok = strrchr(tmp_path, '.');
|
|
if (tok)
|
|
*tok = '\0';
|
|
|
|
ssnes_assert(strlcpy(out_path, tmp_path, size) < size);
|
|
ssnes_assert(strlcat(out_path, replace, size) < size);
|
|
}
|
|
|
|
void fill_pathname_noext(char *out_path, const char *in_path, const char *replace, size_t size)
|
|
{
|
|
ssnes_assert(strlcpy(out_path, in_path, size) < size);
|
|
ssnes_assert(strlcat(out_path, replace, size) < size);
|
|
}
|
|
|
|
void fill_pathname_dir(char *in_dir, const char *in_basename, const char *replace, size_t size)
|
|
{
|
|
ssnes_assert(strlcat(in_dir, "/", size) < size);
|
|
|
|
const char *base = strrchr(in_basename, '/');
|
|
if (!base)
|
|
base = strrchr(in_basename, '\\');
|
|
|
|
if (base)
|
|
base++;
|
|
else
|
|
base = in_basename;
|
|
|
|
ssnes_assert(strlcat(in_dir, base, size) < size);
|
|
ssnes_assert(strlcat(in_dir, replace, size) < size);
|
|
}
|