blast: BufferStateLayer
Adds the initial foundation for supporting buffers on
transactions as well as the other metadata that had been passed
over BufferQueue.
Bug: 80477568
Test: Transaction_test.cpp
Change-Id: I61e44462c66c1a912adbabf62015e66bde44c216
diff --git a/services/surfaceflinger/BufferStateLayer.h b/services/surfaceflinger/BufferStateLayer.h
new file mode 100644
index 0000000..4d7396e
--- /dev/null
+++ b/services/surfaceflinger/BufferStateLayer.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "RenderEngine/Image.h"
+#include "RenderEngine/RenderEngine.h"
+
+#include "BufferLayer.h"
+#include "Layer.h"
+
+#include <gui/GLConsumer.h>
+#include <system/window.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class BufferStateLayer : public BufferLayer {
+public:
+ BufferStateLayer(SurfaceFlinger* flinger, const sp<Client>& client, const String8& name,
+ uint32_t w, uint32_t h, uint32_t flags);
+
+ // -----------------------------------------------------------------------
+ // Interface implementation for Layer
+ // -----------------------------------------------------------------------
+ void onLayerDisplayed(const sp<Fence>& releaseFence) override;
+ void setTransformHint(uint32_t orientation) const override;
+ void releasePendingBuffer(nsecs_t dequeueReadyTime) override;
+
+ bool shouldPresentNow(const DispSync& dispSync) const override;
+
+ bool getTransformToDisplayInverse() const override;
+
+ uint32_t doTransactionResize(uint32_t flags, Layer::State* /*stateToCommit*/) override {
+ return flags;
+ }
+ void pushPendingState() override;
+ bool applyPendingStates(Layer::State* stateToCommit) override;
+
+ uint32_t getActiveWidth(const Layer::State& s) const override { return s.active.w; }
+ uint32_t getActiveHeight(const Layer::State& s) const override { return s.active.h; }
+ Transform getActiveTransform(const Layer::State& s) const override {
+ return s.active.transform;
+ }
+ Region getActiveTransparentRegion(const Layer::State& s) const override {
+ return s.transparentRegionHint;
+ }
+ Rect getCrop(const Layer::State& s) const;
+ Rect getFinalCrop(const Layer::State& /*s*/) const { return Rect::EMPTY_RECT; }
+
+ bool setTransform(uint32_t transform) override;
+ bool setTransformToDisplayInverse(bool transformToDisplayInverse) override;
+ bool setCrop(const Rect& crop) override;
+ bool setBuffer(sp<GraphicBuffer> buffer) override;
+ bool setAcquireFence(const sp<Fence>& fence) override;
+ bool setDataspace(ui::Dataspace dataspace) override;
+ bool setHdrMetadata(const HdrMetadata& hdrMetadata) override;
+ bool setSurfaceDamageRegion(const Region& surfaceDamage) override;
+ bool setApi(int32_t api) override;
+ bool setSidebandStream(const sp<NativeHandle>& sidebandStream) override;
+
+ bool setSize(uint32_t w, uint32_t h) override;
+ bool setPosition(float x, float y, bool immediate) override;
+ bool setTransparentRegionHint(const Region& transparent) override;
+ bool setMatrix(const layer_state_t::matrix22_t& matrix,
+ bool allowNonRectPreservingTransforms) override;
+
+ // Override to ignore legacy layer state properties that are not used by BufferStateLayer
+ bool setCrop_legacy(const Rect& /*crop*/, bool /*immediate*/) override { return false; };
+ bool setFinalCrop_legacy(const Rect& /*crop*/, bool /*immediate*/) override { return false; };
+ void deferTransactionUntil_legacy(const sp<IBinder>& /*barrierHandle*/,
+ uint64_t /*frameNumber*/) override {}
+ void deferTransactionUntil_legacy(const sp<Layer>& /*barrierLayer*/,
+ uint64_t /*frameNumber*/) override {}
+ // -----------------------------------------------------------------------
+
+ // -----------------------------------------------------------------------
+ // Interface implementation for BufferLayer
+ // -----------------------------------------------------------------------
+ bool fenceHasSignaled() const override;
+
+private:
+ nsecs_t getDesiredPresentTime() override;
+ std::shared_ptr<FenceTime> getCurrentFenceTime() const override;
+
+ void getDrawingTransformMatrix(float *matrix) override;
+ uint32_t getDrawingTransform() const override;
+ ui::Dataspace getDrawingDataSpace() const override;
+ Rect getDrawingCrop() const override;
+ uint32_t getDrawingScalingMode() const override;
+ Region getDrawingSurfaceDamage() const override;
+ const HdrMetadata& getDrawingHdrMetadata() const override;
+ int getDrawingApi() const override;
+ PixelFormat getPixelFormat() const override;
+
+ uint64_t getFrameNumber() const override;
+
+ bool getAutoRefresh() const override;
+ bool getSidebandStreamChanged() const override;
+
+ std::optional<Region> latchSidebandStream(bool& recomputeVisibleRegions) override;
+
+ bool hasDrawingBuffer() const override;
+
+ void setFilteringEnabled(bool enabled) override;
+
+ status_t bindTextureImage() const override;
+ status_t updateTexImage(bool& recomputeVisibleRegions, nsecs_t latchTime) override;
+
+ status_t updateActiveBuffer() override;
+ status_t updateFrameNumber(nsecs_t latchTime) override;
+
+ void setHwcLayerBuffer(const sp<const DisplayDevice>& display) override;
+ // -----------------------------------------------------------------------
+private:
+ void onFirstRef() override;
+
+ std::unique_ptr<RE::Image> mTextureImage;
+
+ std::array<float, 16> mTransformMatrix;
+
+ std::atomic<bool> mSidebandStreamChanged;
+
+ uint32_t mFrameNumber;
+
+ // TODO(marissaw): support sticky transform for LEGACY camera mode
+};
+
+} // namespace android