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texture_cache: Fix infinitely recursive ImageCanRescale check

master
ameerj 2021-10-12 01:45:54 +07:00 committed by Fernando Sahmkow
parent b1ae935f11
commit 4de584005f
3 changed files with 13 additions and 10 deletions
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2
src/video_core/texture_cache/image_base.cpp
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@ -256,6 +256,8 @@ void AddImageAlias(ImageBase& lhs, ImageBase& rhs, ImageId lhs_id, ImageId rhs_i
}
lhs.aliased_images.push_back(std::move(lhs_alias));
rhs.aliased_images.push_back(std::move(rhs_alias));
lhs.flags &= ~ImageFlagBits::IsRescalable;
rhs.flags &= ~ImageFlagBits::IsRescalable;
}
} // namespace VideoCommon

5
src/video_core/texture_cache/image_base.h
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@ -36,8 +36,9 @@ enum class ImageFlagBits : u32 {
// Rescaler
Rescaled = 1 << 12,
RescaleChecked = 1 << 13,
Blacklisted = 1 << 14,
CheckingRescalable = 1 << 13,
IsRescalable = 1 << 14,
Blacklisted = 1 << 15,
};
DECLARE_ENUM_FLAG_OPERATORS(ImageFlagBits)

16
src/video_core/texture_cache/texture_cache.h
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@ -795,25 +795,25 @@ bool TextureCache<P>::BlackListImage(ImageId image_id) {
template <class P>
bool TextureCache<P>::ImageCanRescale(ImageBase& image) {
if (True(image.flags & ImageFlagBits::Blacklisted)) {
if (!image.info.rescaleable || True(image.flags & ImageFlagBits::Blacklisted)) {
return false;
}
if (True(image.flags & (ImageFlagBits::Rescaled | ImageFlagBits::RescaleChecked))) {
if (True(image.flags & (ImageFlagBits::Rescaled | ImageFlagBits::CheckingRescalable))) {
return true;
}
if (!image.info.rescaleable) {
image.flags &= ~ImageFlagBits::RescaleChecked;
return false;
if (True(image.flags & ImageFlagBits::IsRescalable)) {
return true;
}
image.flags |= ImageFlagBits::RescaleChecked;
image.flags |= ImageFlagBits::CheckingRescalable;
for (const auto& alias : image.aliased_images) {
Image& other_image = slot_images[alias.id];
if (!ImageCanRescale(other_image)) {
image.flags &= ~ImageFlagBits::RescaleChecked;
image.flags &= ~ImageFlagBits::CheckingRescalable;
return false;
}
}
image.flags &= ~ImageFlagBits::RescaleChecked;
image.flags &= ~ImageFlagBits::CheckingRescalable;
image.flags |= ImageFlagBits::IsRescalable;
return true;
}