Maintain the active buffer when clearing buffer slots
When an app discards graphic buffers, for example when a MediaCodec
disconnects from a surface, those buffers will be uncached and removed
from HWC buffer slots. The active buffer, however, should still remain
active until the next buffer is queued up.
Bug: 262037933
Bug: 258196272
Test: atest OutputLayerUncacheBufferTest
Test: atest VtsHalGraphicsComposer3_TargetTest
Test: atest VtsHalGraphicsComposerV2_2TargetTest
Change-Id: I7c4eefb17e8bad694d698f9ad6d1d289f4af8d2c
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
index 13edb13..c1c7070 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h
@@ -310,7 +310,8 @@
[[nodiscard]] virtual hal::Error setBuffer(uint32_t slot,
const android::sp<android::GraphicBuffer>& buffer,
const android::sp<android::Fence>& acquireFence) = 0;
- [[nodiscard]] virtual hal::Error clearBufferSlot(uint32_t slot) = 0;
+ [[nodiscard]] virtual hal::Error setBufferSlotsToClear(
+ const std::vector<uint32_t>& slotsToClear, uint32_t activeBufferSlot) = 0;
[[nodiscard]] virtual hal::Error setSurfaceDamage(const android::Region& damage) = 0;
[[nodiscard]] virtual hal::Error setBlendMode(hal::BlendMode mode) = 0;
@@ -361,7 +362,8 @@
hal::Error setCursorPosition(int32_t x, int32_t y) override;
hal::Error setBuffer(uint32_t slot, const android::sp<android::GraphicBuffer>& buffer,
const android::sp<android::Fence>& acquireFence) override;
- hal::Error clearBufferSlot(uint32_t slot) override;
+ hal::Error setBufferSlotsToClear(const std::vector<uint32_t>& slotsToClear,
+ uint32_t activeBufferSlot) override;
hal::Error setSurfaceDamage(const android::Region& damage) override;
hal::Error setBlendMode(hal::BlendMode mode) override;