void trySlotB() {
if (deviceHandler_FAT_init(&initial_SD1)) {
forceSlot = 1;
print_gecko("Detected SDGecko in Slot B for config\r\n");
}
else {
forceSlot = 0;
}
}
int patch_gcm(file_handle *file, ExecutableFile *filesToPatch, int numToPatch, int multiDol) {
int i, num_patched = 0;
// If the current device isn't SD Gecko, init SD Gecko Slot A or B to write patches.
if(deviceHandler_initial != &initial_SD0 && deviceHandler_initial != &initial_SD1) {
deviceHandler_setStatEnabled(0);
if(deviceHandler_FAT_init(&initial_SD0)) {
savePatchDevice = 0;
}
else if(deviceHandler_FAT_init(&initial_SD1)) {
savePatchDevice = 1;
}
deviceHandler_setStatEnabled(1);
}
// Already using SD Gecko
if(deviceHandler_initial == &initial_SD0)
savePatchDevice = 0;
else if(deviceHandler_initial == &initial_SD1)
savePatchDevice = 1;
if(savePatchDevice == -1) {
DrawFrameStart();
DrawMessageBox(D_FAIL, "No writable device present\nA SD Gecko must be inserted in\n order to utilise patches for this game.");
DrawFrameFinish();
sleep(5);
return 0;
}
char patchFileName[256];
char patchDirName[256];
char patchBaseDirName[256];
char gameID[8];
memset(&gameID, 0, 8);
memset(&patchDirName, 0, 256);
memset(&patchBaseDirName, 0, 256);
strncpy((char*)&gameID, (char*)&GCMDisk, 4);
sprintf(&patchDirName[0],"%s:/swiss_patches/%s",(savePatchDevice ? "sdb":"sda"), &gameID[0]);
sprintf(&patchBaseDirName[0],"%s:/swiss_patches",(savePatchDevice ? "sdb":"sda"));
print_gecko("Patch dir will be: %s if required\r\n", patchDirName);
*(u32*)VAR_EXECD_OFFSET = 0xFFFFFFFF;
// Go through all the possible files we think need patching..
for(i = 0; i < numToPatch; i++) {
u32 patched = 0, crc32 = 0;
sprintf(txtbuffer, "Patching File %i/%i",i+1,numToPatch);
DrawFrameStart();
DrawProgressBar((int)(((float)(i+1)/(float)numToPatch)*100), txtbuffer);
DrawFrameFinish();
// Round up to 32 bytes
if(filesToPatch[i].size % 0x20) {
filesToPatch[i].size += (0x20-(filesToPatch[i].size%0x20));
}
if(filesToPatch[i].size > 8*1024*1024) {
print_gecko("Skipping %s %iKB too large\r\n", filesToPatch[i].name, filesToPatch[i].size/1024);
continue;
}
print_gecko("Checking %s %iKb\r\n", filesToPatch[i].name, filesToPatch[i].size/1024);
if(strstr(filesToPatch[i].name, "execD.")) {
*(u32*)VAR_EXECD_OFFSET = filesToPatch[i].offset;
}
if(strstr(filesToPatch[i].name, "iwanagaD.dol") || strstr(filesToPatch[i].name, "switcherD.dol")) {
continue; // skip unused PSO files
}
int sizeToRead = filesToPatch[i].size;
u8 *buffer = (u8*)memalign(32, sizeToRead);
deviceHandler_seekFile(file,filesToPatch[i].offset, DEVICE_HANDLER_SEEK_SET);
if(deviceHandler_readFile(file,buffer,sizeToRead)!= sizeToRead) {
DrawFrameStart();
DrawMessageBox(D_FAIL, "Failed to read!");
DrawFrameFinish();
sleep(5);
return 0;
}
if(curDevice != DVD_DISC) {
u32 ret = Patch_DVDLowLevelRead(buffer, sizeToRead, filesToPatch[i].type);
if(READ_PATCHED_ALL != ret) {
DrawFrameStart();
DrawMessageBox(D_FAIL, "Failed to find necessary functions for patching!");
DrawFrameFinish();
sleep(5);
}
else
patched += 1;
}
if(swissSettings.debugUSB && usb_isgeckoalive(1) && !swissSettings.wiirdDebug) {
patched += Patch_Fwrite(buffer, sizeToRead);
}
if(swissSettings.wiirdDebug || getEnabledCheatsSize() > 0) {
Patch_CheatsHook(buffer, sizeToRead, filesToPatch[i].type);
}
if(curDevice == DVD_DISC && is_gamecube()) {
patched += Patch_DVDLowLevelReadForDVD(buffer, sizeToRead, filesToPatch[i].type);
patched += Patch_DVDReset(buffer, sizeToRead);
}
patched += Patch_VidMode(buffer, sizeToRead, filesToPatch[i].type);
patched += Patch_FontEnc(buffer, sizeToRead);
if(swissSettings.forceWidescreen)
Patch_WideAspect(buffer, sizeToRead, filesToPatch[i].type);
if(swissSettings.forceAnisotropy)
Patch_TexFilt(buffer, sizeToRead, filesToPatch[i].type);
if(patched) {
// File handle for a patch we might need to write
FILE *patchFile = 0;
memset(patchFileName, 0, 256);
// Make a base patches dir if we don't have one already
if(mkdir(&patchBaseDirName[0], 0777) != 0) {
if(errno != EEXIST) {
return -2;
}
}
if(mkdir(&patchDirName[0], 0777) != 0) {
if(errno != EEXIST) {
return -2;
}
}
sprintf(patchFileName, "%s/%i",patchDirName, num_patched);
// Work out the crc32
crc32 = Crc32_ComputeBuf( 0, buffer, (u32) sizeToRead);
// See if this file already exists, if it does, match crc
patchFile = fopen( patchFileName, "rb" );
if(patchFile) {
//print_gecko("Old Patch exists\r\n");
u32 oldCrc32 = 0;
fseek(patchFile, 0L, SEEK_END);
u32 file_size = ftell(patchFile);
fseek(patchFile, file_size-4, SEEK_SET);
fread(&oldCrc32, 1, 4, patchFile);
if(oldCrc32 == crc32) {
num_patched++;
fclose(patchFile);
free(buffer);
print_gecko("CRC matched, no need to patch again\r\n");
continue;
}
else {
remove(patchFileName);
fclose(patchFile);
print_gecko("CRC mismatch, writing patch again\r\n");
}
}
// Otherwise, write a file out for this game with the patched buffer inside.
print_gecko("Writing patch file: %s %i bytes (disc offset %08X)\r\n", patchFileName, sizeToRead, filesToPatch[i].offset);
patchFile = fopen(patchFileName, "wb");
fwrite(buffer, 1, sizeToRead, patchFile);
u32 magic = SWISS_MAGIC;
fwrite(&filesToPatch[i].offset, 1, 4, patchFile);
fwrite(&filesToPatch[i].size, 1, 4, patchFile);
fwrite(&magic, 1, 4, patchFile);
fwrite(&crc32, 1, 4, patchFile);
fclose(patchFile);
num_patched++;
}
free(buffer);
}
return num_patched;
}
