RenderEngine: Pre-warm shaders for dimmed layers (6574613a) · Commits · e / os / platform_frameworks_native

libs/renderengine/skia/Cache.cpp

+168 −0

Original line number	Diff line number	Diff line
		@@ -49,6 +49,11 @@ const auto kFlip = mat4(1.1f, -0.1f, 0.f, 0.f,
		// a color correction effect is added to the shader.
		constexpr auto kDestDataSpace = ui::Dataspace::SRGB;
		constexpr auto kOtherDataSpace = ui::Dataspace::DISPLAY_P3;
		// Dimming is needed to trigger linear effects for some dataspace pairs
		const std::array<float, 3> kLayerWhitePoints = {
		1000.0f, 500.0f,
		100.0f, // trigger dithering by dimming below 20%
		};
		} // namespace

		static void drawShadowLayers(SkiaRenderEngine* renderengine, const DisplaySettings& display,
		@@ -317,6 +322,150 @@ static void drawHolePunchLayer(SkiaRenderEngine* renderengine, const DisplaySett
		renderengine->drawLayers(display, layers, dstTexture, base::unique_fd());
		}

		static void drawImageDimmedLayers(SkiaRenderEngine* renderengine, const DisplaySettings& display,
		const std::shared_ptr<ExternalTexture>& dstTexture,
		const std::shared_ptr<ExternalTexture>& srcTexture) {
		const Rect& displayRect = display.physicalDisplay;
		FloatRect rect(0, 0, displayRect.width(), displayRect.height());
		LayerSettings layer{
		.geometry =
		Geometry{
		// The position transform doesn't matter when the reduced shader mode
		// in in effect. A matrix transform stage is always included.
		.positionTransform = mat4(),
		.boundaries = rect,
		.roundedCornersCrop = rect,
		.roundedCornersRadius = {0.f, 0.f},
		},
		.source = PixelSource{.buffer = Buffer{.buffer = srcTexture,
		.maxLuminanceNits = 1000.f,
		.usePremultipliedAlpha = true,
		.isOpaque = true}},
		.alpha = 1.f,
		.sourceDataspace = kDestDataSpace,
		};

		std::vector<LayerSettings> layers;

		for (auto layerWhitePoint : kLayerWhitePoints) {
		layer.whitePointNits = layerWhitePoint;
		layers.push_back(layer);
		}
		renderengine->drawLayers(display, layers, dstTexture, base::unique_fd());
		}

		static void drawTransparentImageDimmedLayers(SkiaRenderEngine* renderengine,
		const DisplaySettings& display,
		const std::shared_ptr<ExternalTexture>& dstTexture,
		const std::shared_ptr<ExternalTexture>& srcTexture) {
		const Rect& displayRect = display.physicalDisplay;
		FloatRect rect(0, 0, displayRect.width(), displayRect.height());
		LayerSettings layer{
		.geometry =
		Geometry{
		.positionTransform = mat4(),
		.boundaries = rect,
		.roundedCornersCrop = rect,
		},
		.source = PixelSource{.buffer =
		Buffer{
		.buffer = srcTexture,
		.maxLuminanceNits = 1000.f,
		.usePremultipliedAlpha = true,
		.isOpaque = false,
		}},
		.sourceDataspace = kDestDataSpace,
		};

		for (auto roundedCornerRadius : {0.f, 50.f}) {
		layer.geometry.roundedCornersRadius = {roundedCornerRadius, roundedCornerRadius};
		for (auto alpha : {0.5f, 1.0f}) {
		layer.alpha = alpha;
		std::vector<LayerSettings> layers;

		for (auto layerWhitePoint : kLayerWhitePoints) {
		layer.whitePointNits = layerWhitePoint;
		layers.push_back(layer);
		}
		renderengine->drawLayers(display, layers, dstTexture, base::unique_fd());
		}
		}
		}

		static void drawClippedDimmedImageLayers(SkiaRenderEngine* renderengine,
		const DisplaySettings& display,
		const std::shared_ptr<ExternalTexture>& dstTexture,
		const std::shared_ptr<ExternalTexture>& srcTexture) {
		const Rect& displayRect = display.physicalDisplay;

		// If rect and boundary is too small compared to roundedCornersRadius, Skia will switch to
		// blending instead of EllipticalRRect, so enlarge them a bit.
		FloatRect rect(0, 0, displayRect.width(), displayRect.height());
		FloatRect boundary(0, 0, displayRect.width(),
		displayRect.height() - 20); // boundary is smaller
		LayerSettings layer{
		.geometry =
		Geometry{
		.positionTransform = mat4(),
		.boundaries = boundary,
		.roundedCornersCrop = rect,
		.roundedCornersRadius = {27.f, 27.f},
		},
		.source = PixelSource{.buffer =
		Buffer{
		.buffer = srcTexture,
		.maxLuminanceNits = 1000.f,
		.usePremultipliedAlpha = true,
		.isOpaque = false,
		}},
		.alpha = 1.f,
		.sourceDataspace = kDestDataSpace,
		};

		std::array<mat4, 2> transforms = {kScaleAndTranslate, kScaleAsymmetric};

		constexpr float radius = 27.f;

		for (size_t i = 0; i < transforms.size(); i++) {
		layer.geometry.positionTransform = transforms[i];
		layer.geometry.roundedCornersRadius = {radius, radius};

		std::vector<LayerSettings> layers;

		for (auto layerWhitePoint : kLayerWhitePoints) {
		layer.whitePointNits = layerWhitePoint;
		layers.push_back(layer);
		}
		renderengine->drawLayers(display, layers, dstTexture, base::unique_fd());
		}
		}

		static void drawSolidDimmedLayers(SkiaRenderEngine* renderengine, const DisplaySettings& display,
		const std::shared_ptr<ExternalTexture>& dstTexture) {
		const Rect& displayRect = display.physicalDisplay;
		FloatRect rect(0, 0, displayRect.width(), displayRect.height());
		LayerSettings layer{
		.geometry =
		Geometry{
		.boundaries = rect,
		.roundedCornersCrop = rect,
		},
		.source =
		PixelSource{
		.solidColor = half3(0.1f, 0.2f, 0.3f),
		},
		.alpha = 1.f,
		};

		std::vector<LayerSettings> layers;

		for (auto layerWhitePoint : kLayerWhitePoints) {
		layer.whitePointNits = layerWhitePoint;
		layers.push_back(layer);
		}
		renderengine->drawLayers(display, layers, dstTexture, base::unique_fd());
		}

		//
		// The collection of shaders cached here were found by using perfetto to record shader compiles
		// during actions that involve RenderEngine, logging the layer settings, and the shader code
		@@ -353,6 +502,15 @@ void Cache::primeShaderCache(SkiaRenderEngine* renderengine) {
		.maxLuminance = 500,
		.outputDataspace = kOtherDataSpace,
		};
		DisplaySettings bt2020Display{.physicalDisplay = displayRect,
		.clip = displayRect,
		.maxLuminance = 500,
		.outputDataspace = ui::Dataspace::BT2020,
		.deviceHandlesColorTransform = true,
		.dimmingStage = aidl::android::hardware::graphics::composer3::
		DimmingStage::GAMMA_OETF,
		.renderIntent = aidl::android::hardware::graphics::composer3::
		RenderIntent::TONE_MAP_ENHANCE};

		const int64_t usage = GRALLOC_USAGE_HW_RENDER \| GRALLOC_USAGE_HW_TEXTURE;

		@@ -377,6 +535,7 @@ void Cache::primeShaderCache(SkiaRenderEngine* renderengine) {
		impl::ExternalTexture::Usage::WRITEABLE);
		drawHolePunchLayer(renderengine, display, dstTexture);
		drawSolidLayers(renderengine, display, dstTexture);
		drawSolidDimmedLayers(renderengine, display, dstTexture);

		drawShadowLayers(renderengine, display, srcTexture);
		drawShadowLayers(renderengine, p3Display, srcTexture);
		@@ -417,12 +576,21 @@ void Cache::primeShaderCache(SkiaRenderEngine* renderengine) {

		for (auto texture : textures) {
		drawImageLayers(renderengine, display, dstTexture, texture);
		drawImageDimmedLayers(renderengine, display, dstTexture, texture);
		drawImageDimmedLayers(renderengine, p3Display, dstTexture, texture);
		drawImageDimmedLayers(renderengine, bt2020Display, dstTexture, texture);
		// Draw layers for b/185569240.
		drawClippedLayers(renderengine, display, dstTexture, texture);
		}

		drawPIPImageLayer(renderengine, display, dstTexture, externalTexture);

		drawTransparentImageDimmedLayers(renderengine, bt2020Display, dstTexture, externalTexture);
		drawTransparentImageDimmedLayers(renderengine, display, dstTexture, externalTexture);
		drawTransparentImageDimmedLayers(renderengine, p3Display, dstTexture, externalTexture);

		drawClippedDimmedImageLayers(renderengine, bt2020Display, dstTexture, externalTexture);

		// draw one final layer synchronously to force GL submit
		LayerSettings layer{
		.source = PixelSource{.solidColor = half3(0.f, 0.f, 0.f)},