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GBA: Allow disabling checksum verification

This commit is contained in:
Jeffrey Pfau 2015-04-15 21:05:01 -07:00
parent 37b2eb05ae
commit dee394f10f
3 changed files with 12 additions and 10 deletions
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18
src/gba/sharkport.c
View File

@ -10,7 +10,7 @@
static const char* const SHARKPORT_HEADER = "SharkPortSave";
bool GBASavedataImportSharkPort(struct GBA* gba, struct VFile* vf) {
bool GBASavedataImportSharkPort(struct GBA* gba, struct VFile* vf, bool testChecksum) {
union {
char c[0x1C];
int32_t i;
@ -100,14 +100,16 @@ bool GBASavedataImportSharkPort(struct GBA* gba, struct VFile* vf) {
}
LOAD_32(checksum, 0, &buffer.i);
uint32_t calcChecksum = 0;
int i;
for (i = 0; i < size; ++i) {
calcChecksum += payload[i] << (calcChecksum % 24);
}
if (testChecksum) {
uint32_t calcChecksum = 0;
int i;
for (i = 0; i < size; ++i) {
calcChecksum += ((int32_t) payload[i]) << (calcChecksum % 24);
}
if (calcChecksum != checksum) {
goto cleanup;
if (calcChecksum != checksum) {
goto cleanup;
}
}
uint32_t copySize = size - 0x1C;

2
src/gba/sharkport.h
View File

@ -11,7 +11,7 @@
struct GBA;
struct VFile;
bool GBASavedataImportSharkPort(struct GBA* gba, struct VFile* vf);
bool GBASavedataImportSharkPort(struct GBA* gba, struct VFile* vf, bool testChecksum);
bool GBASavedataExportSharkPort(const struct GBA* gba, struct VFile* vf);
#endif

2
src/platform/qt/GameController.cpp
View File

@ -306,7 +306,7 @@ void GameController::importSharkport(const QString& path) {
return;
}
threadInterrupt();
GBASavedataImportSharkPort(m_threadContext.gba, vf);
GBASavedataImportSharkPort(m_threadContext.gba, vf, false);
threadContinue();
vf->close(vf);
}