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Fix infinite loop when reading dirty buffers with direct mem
The code didn't account for interval Queries returning zero when reaching the end.
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@ -312,12 +312,15 @@ namespace skyline::gpu {
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RefreshGpuWritesActiveDirect(true, flushHostCallback);
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if (directTrackedShadowActive && RefreshGpuReadsActiveDirect()) {
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size_t curOffset{offset};
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while (curOffset != data.size() + offset) {
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auto result{directTrackedWrites.Query(curOffset)};
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size_t dstOffset{};
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while (dstOffset != data.size()) {
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auto srcOffset{dstOffset + offset};
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auto dstRemaining{data.size() - dstOffset};
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auto result{directTrackedWrites.Query(srcOffset)};
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auto size{result.size ? std::min(result.size, dstRemaining) : dstRemaining};
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auto srcData{result.enclosed ? directTrackedShadow.data() : mirror.data()};
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std::memcpy(data.data() + curOffset - offset, srcData + curOffset, result.size);
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curOffset += result.size;
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std::memcpy(data.data() + dstOffset, srcData + srcOffset, size);
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dstOffset += size;
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}
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} else [[likely]] {
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std::memcpy(data.data(), mirror.data() + offset, data.size());
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