src/dawn/native/PassResourceUsage.cpp

// Copyright 2026 The Dawn & Tint Authors
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#include "src/dawn/native/PassResourceUsage.h"

#include "src/dawn/native/Texture.h"

namespace dawn::native {

absl::flat_hash_set<TextureBase*> GatherWritableTextures(const SyncScopeResourceUsage& scope) {
    absl::flat_hash_set<TextureBase*> writables;
    for (size_t i = 0; i < scope.textures.size(); ++i) {
        TextureBase* texture = scope.textures[i];
        const TextureSubresourceSyncInfo& syncInfo = scope.textureSyncInfos[i];

        bool isWritable = false;
        syncInfo.Iterate([&](const SubresourceRange&, const TextureSyncInfo& info) {
            if (isWritable) {
                return;
            }
            if (!IsSubset(info.usage, kReadOnlyTextureUsages)) {
                isWritable = true;
            }
        });
        if (isWritable) {
            writables.insert(texture);
        }
    }
    return writables;
}

}  // namespace dawn::native