SF: Extract virtual display allocation from CE am: 1394860b5d (5a0a2214) · Commits · e / os / android_frameworks_native-old

services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayCreationArgs.h

+9 −36

Original line number	Diff line number	Diff line
		@@ -21,13 +21,10 @@
		#include <string>

		#include <ui/DisplayId.h>
		#include <ui/PixelFormat.h>
		#include <ui/Size.h>
		#include <ui/StaticDisplayInfo.h>

		#include "DisplayHardware/DisplayIdentification.h"
		#include "DisplayHardware/PowerAdvisor.h"
		#include "DisplayIdGenerator.h"

		namespace android::compositionengine {

		@@ -37,24 +34,14 @@ class CompositionEngine;
		* A parameter object for creating Display instances
		*/
		struct DisplayCreationArgs {
		struct Physical {
		DisplayId id;
		ui::DisplayConnectionType type;
		};

		// Required for physical displays. Gives the HWC display id for the existing
		// display along with the connection type.
		std::optional<Physical> physical;
		// Unset for virtual displays
		std::optional<ui::DisplayConnectionType> connectionType;

		// Size of the display in pixels
		ui::Size pixels = ui::Size::INVALID;

		// Pixel format of the display
		ui::PixelFormat pixelFormat = static_cast<ui::PixelFormat>(PIXEL_FORMAT_UNKNOWN);

		// True if virtual displays should be created with the HWC API if possible
		bool useHwcVirtualDisplays = false;

		// True if this display should be considered secure
		bool isSecure = false;

		@@ -67,9 +54,6 @@ struct DisplayCreationArgs {

		// Debugging. Human readable name for the display.
		std::string name;

		// Generator for IDs of virtual displays, which are backed by the GPU.
		DisplayIdGenerator<GpuVirtualDisplayId>* gpuVirtualDisplayIdGenerator;
		};

		/**
		@@ -80,29 +64,18 @@ class DisplayCreationArgsBuilder {
		public:
		DisplayCreationArgs build() { return std::move(mArgs); }

		DisplayCreationArgsBuilder& setPhysical(DisplayCreationArgs::Physical physical) {
		mArgs.physical = physical;
		return *this;
		}

		DisplayCreationArgsBuilder& setPixels(ui::Size pixels) {
		mArgs.pixels = pixels;
		DisplayCreationArgsBuilder& setId(DisplayId id) {
		mArgs.id = id;
		return *this;
		}

		DisplayCreationArgsBuilder& setPixelFormat(ui::PixelFormat pixelFormat) {
		mArgs.pixelFormat = pixelFormat;
		DisplayCreationArgsBuilder& setConnectionType(ui::DisplayConnectionType connectionType) {
		mArgs.connectionType = connectionType;
		return *this;
		}

		DisplayCreationArgsBuilder& setUseHwcVirtualDisplays(bool useHwcVirtualDisplays) {
		mArgs.useHwcVirtualDisplays = useHwcVirtualDisplays;
		return *this;
		}

		DisplayCreationArgsBuilder& setGpuVirtualDisplayIdGenerator(
		DisplayIdGenerator<GpuVirtualDisplayId>& generator) {
		mArgs.gpuVirtualDisplayIdGenerator = &generator;
		DisplayCreationArgsBuilder& setPixels(ui::Size pixels) {
		mArgs.pixels = pixels;
		return *this;
		}

services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Display.h

+0 −6

Original line number	Diff line number	Diff line
		@@ -80,19 +80,13 @@ public:

		// Internal
		virtual void setConfiguration(const compositionengine::DisplayCreationArgs&);
		virtual std::optional<DisplayId> maybeAllocateDisplayIdForVirtualDisplay(ui::Size,
		ui::PixelFormat) const;
		std::unique_ptr<compositionengine::OutputLayer> createOutputLayer(const sp<LayerFE>&) const;

		// Testing
		void setDisplayIdForTesting(DisplayId displayId);

		private:
		bool mIsVirtual = false;
		bool mIsDisconnected = false;
		DisplayId mId;
		Hwc2::PowerAdvisor* mPowerAdvisor = nullptr;
		DisplayIdGenerator<GpuVirtualDisplayId>* mGpuVirtualDisplayIdGenerator;
		};

		// This template factory function standardizes the implementation details of the

services/surfaceflinger/CompositionEngine/src/Display.cpp

+6 −35

Original line number	Diff line number	Diff line
		@@ -50,36 +50,14 @@ std::shared_ptr<Display> createDisplay(
		Display::~Display() = default;

		void Display::setConfiguration(const compositionengine::DisplayCreationArgs& args) {
		mIsVirtual = !args.physical;
		mId = args.id;
		mIsVirtual = !args.connectionType;
		mPowerAdvisor = args.powerAdvisor;
		editState().isSecure = args.isSecure;
		editState().displaySpace.bounds = Rect(args.pixels);
		setLayerStackFilter(args.layerStackId,
		args.physical &&
		args.physical->type == ui::DisplayConnectionType::Internal);
		args.connectionType == ui::DisplayConnectionType::Internal);
		setName(args.name);
		mGpuVirtualDisplayIdGenerator = args.gpuVirtualDisplayIdGenerator;

		if (args.physical) {
		mId = args.physical->id;
		} else {
		std::optional<DisplayId> id;
		if (args.useHwcVirtualDisplays) {
		id = maybeAllocateDisplayIdForVirtualDisplay(args.pixels, args.pixelFormat);
		}
		if (!id) {
		id = mGpuVirtualDisplayIdGenerator->nextId();
		}
		LOG_ALWAYS_FATAL_IF(!id, "Failed to generate display ID");
		mId = *id;
		}
		}

		std::optional<DisplayId> Display::maybeAllocateDisplayIdForVirtualDisplay(
		ui::Size pixels, ui::PixelFormat pixelFormat) const {
		auto& hwc = getCompositionEngine().getHwComposer();
		return hwc.allocateVirtualDisplay(static_cast<uint32_t>(pixels.width),
		static_cast<uint32_t>(pixels.height), &pixelFormat);
		}

		bool Display::isValid() const {
		@@ -102,23 +80,16 @@ std::optional<DisplayId> Display::getDisplayId() const {
		return mId;
		}

		void Display::setDisplayIdForTesting(DisplayId displayId) {
		mId = displayId;
		}

		void Display::disconnect() {
		if (mIsDisconnected) {
		return;
		}

		mIsDisconnected = true;
		if (const auto id = GpuVirtualDisplayId::tryCast(mId)) {
		mGpuVirtualDisplayIdGenerator->markUnused(*id);
		return;

		if (const auto id = HalDisplayId::tryCast(mId)) {
		getCompositionEngine().getHwComposer().disconnectDisplay(*id);
		}
		const auto halDisplayId = HalDisplayId::tryCast(mId);
		LOG_FATAL_IF(!halDisplayId);
		getCompositionEngine().getHwComposer().disconnectDisplay(*halDisplayId);
		}

		void Display::setColorTransform(const compositionengine::CompositionRefreshArgs& args) {

services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp

+112 −166

File changed.

Preview size limit exceeded, changes collapsed.

services/surfaceflinger/CompositionEngine/tests/MockHWComposer.h

+5 −2

Original line number	Diff line number	Diff line
		@@ -45,8 +45,11 @@ public:
		MOCK_CONST_METHOD1(hasCapability, bool(hal::Capability));
		MOCK_CONST_METHOD2(hasDisplayCapability, bool(HalDisplayId, hal::DisplayCapability));

		MOCK_METHOD3(allocateVirtualDisplay,
		std::optional<DisplayId>(uint32_t, uint32_t, ui::PixelFormat*));
		MOCK_CONST_METHOD0(getMaxVirtualDisplayCount, size_t());
		MOCK_CONST_METHOD0(getMaxVirtualDisplayDimension, size_t());
		MOCK_METHOD4(allocateVirtualDisplay,
		bool(HalVirtualDisplayId, ui::Size, ui::PixelFormat*,
		std::optional<PhysicalDisplayId>));
		MOCK_METHOD2(allocatePhysicalDisplay, void(hal::HWDisplayId, PhysicalDisplayId));
		MOCK_METHOD1(createLayer, std::shared_ptr<HWC2::Layer>(HalDisplayId));
		MOCK_METHOD4(getDeviceCompositionChanges,