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maxwell_dma: Check for valid source in destination before copy. 

- Avoid a crash in Octopath Traveler.
This commit is contained in:
bunnei 2019-03-09 14:36:52 -05:00
parent 197dcf0b5e
commit 19330f45d3
1 changed files with 10 additions and 0 deletions
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10
src/video_core/engines/maxwell_dma.cpp
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@ -88,6 +88,16 @@ void MaxwellDMA::HandleCopy() {
auto source_ptr{memory_manager.GetPointer(source)}; auto source_ptr{memory_manager.GetPointer(source)};
auto dst_ptr{memory_manager.GetPointer(dest)}; auto dst_ptr{memory_manager.GetPointer(dest)};
if (!source_ptr) {
LOG_ERROR(HW_GPU, "source_ptr is invalid");
return;
}
if (!dst_ptr) {
LOG_ERROR(HW_GPU, "dst_ptr is invalid");
return;
}
const auto FlushAndInvalidate = [&](u32 src_size, u64 dst_size) { const auto FlushAndInvalidate = [&](u32 src_size, u64 dst_size) {
// TODO(Subv): For now, manually flush the regions until we implement GPU-accelerated // TODO(Subv): For now, manually flush the regions until we implement GPU-accelerated
// copying. // copying.