libs/hwui/renderthread/OpenGLPipeline.cpp - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2016 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.
  */

 #include "OpenGLPipeline.h"

 #include "DeferredLayerUpdater.h"
 #include "EglManager.h"
 #include "Frame.h"
 #include "GlLayer.h"
 #include "ProfileRenderer.h"
 #include "renderstate/RenderState.h"
 #include "OpenGLReadback.h"

 #include <cutils/properties.h>
 #include <strings.h>

 namespace android {
 namespace uirenderer {
 namespace renderthread {

 OpenGLPipeline::OpenGLPipeline(RenderThread& thread)
         :  mEglManager(thread.eglManager())
         , mRenderThread(thread) {
 }

 MakeCurrentResult OpenGLPipeline::makeCurrent() {
     // TODO: Figure out why this workaround is needed, see b/13913604
     // In the meantime this matches the behavior of GLRenderer, so it is not a regression
     EGLint error = 0;
     bool haveNewSurface = mEglManager.makeCurrent(mEglSurface, &error);

     Caches::getInstance().textureCache.resetMarkInUse(this);
     if (!haveNewSurface) {
         return MakeCurrentResult::AlreadyCurrent;
     }
     return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
 }

 Frame OpenGLPipeline::getFrame() {
     LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
                 "drawRenderNode called on a context with no surface!");
     return mEglManager.beginFrame(mEglSurface);
 }

 bool OpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty, const SkRect& dirty,
         const FrameBuilder::LightGeometry& lightGeometry,
         LayerUpdateQueue* layerUpdateQueue,
         const Rect& contentDrawBounds, bool opaque, bool wideColorGamut,
         const BakedOpRenderer::LightInfo& lightInfo,
         const std::vector< sp<RenderNode> >& renderNodes,
         FrameInfoVisualizer* profiler) {

     mEglManager.damageFrame(frame, dirty);

     bool drew = false;


     auto& caches = Caches::getInstance();
     FrameBuilder frameBuilder(dirty, frame.width(), frame.height(), lightGeometry, caches);

     frameBuilder.deferLayers(*layerUpdateQueue);
     layerUpdateQueue->clear();

     frameBuilder.deferRenderNodeScene(renderNodes, contentDrawBounds);

     BakedOpRenderer renderer(caches, mRenderThread.renderState(),
             opaque, wideColorGamut, lightInfo);
     frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
     ProfileRenderer profileRenderer(renderer);
     profiler->draw(profileRenderer);
     drew = renderer.didDraw();

     // post frame cleanup
     caches.clearGarbage();
     caches.pathCache.trim();
     caches.tessellationCache.trim();

 #if DEBUG_MEMORY_USAGE
     caches.dumpMemoryUsage();
 #else
     if (CC_UNLIKELY(Properties::debugLevel & kDebugMemory)) {
         caches.dumpMemoryUsage();
     }
 #endif

     return drew;
 }

 bool OpenGLPipeline::swapBuffers(const Frame& frame, bool drew, const SkRect& screenDirty,
         FrameInfo* currentFrameInfo, bool* requireSwap) {

     GL_CHECKPOINT(LOW);

     // Even if we decided to cancel the frame, from the perspective of jank
     // metrics the frame was swapped at this point
     currentFrameInfo->markSwapBuffers();

     *requireSwap = drew || mEglManager.damageRequiresSwap();

     if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
         return false;
     }

     return *requireSwap;
 }

 bool OpenGLPipeline::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
     ATRACE_CALL();
     // acquire most recent buffer for drawing
     layer->updateTexImage();
     layer->apply();
     return OpenGLReadbackImpl::copyLayerInto(mRenderThread,
             static_cast<GlLayer&>(*layer->backingLayer()), bitmap);
 }

 static Layer* createLayer(RenderState& renderState, uint32_t layerWidth, uint32_t layerHeight,
         SkColorFilter* colorFilter, int alpha, SkBlendMode mode, bool blend) {
     GlLayer* layer = new GlLayer(renderState, layerWidth, layerHeight, colorFilter, alpha,
             mode, blend);
     Caches::getInstance().textureState().activateTexture(0);
     layer->generateTexture();
     return layer;
 }

 DeferredLayerUpdater* OpenGLPipeline::createTextureLayer() {
     mEglManager.initialize();
     return new DeferredLayerUpdater(mRenderThread.renderState(), createLayer, Layer::Api::OpenGL);
 }

 void OpenGLPipeline::onStop() {
     if (mEglManager.isCurrent(mEglSurface)) {
         mEglManager.makeCurrent(EGL_NO_SURFACE);
     }
 }

 bool OpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior, ColorMode colorMode) {

     if (mEglSurface != EGL_NO_SURFACE) {
         mEglManager.destroySurface(mEglSurface);
         mEglSurface = EGL_NO_SURFACE;
     }

     if (surface) {
         const bool wideColorGamut = colorMode == ColorMode::WideColorGamut;
         mEglSurface = mEglManager.createSurface(surface, wideColorGamut);
     }

     if (mEglSurface != EGL_NO_SURFACE) {
         const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
         mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
         return true;
     }

     return false;
 }

 bool OpenGLPipeline::isSurfaceReady() {
     return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
 }

 bool OpenGLPipeline::isContextReady() {
     return CC_LIKELY(mEglManager.hasEglContext());
 }

 void OpenGLPipeline::onDestroyHardwareResources() {
     Caches& caches = Caches::getInstance();
     // Make sure to release all the textures we were owning as there won't
     // be another draw
     caches.textureCache.resetMarkInUse(this);
     mRenderThread.renderState().flush(Caches::FlushMode::Layers);
 }

 void OpenGLPipeline::renderLayers(const FrameBuilder::LightGeometry& lightGeometry,
         LayerUpdateQueue* layerUpdateQueue, bool opaque, bool wideColorGamut,
         const BakedOpRenderer::LightInfo& lightInfo) {
     static const std::vector< sp<RenderNode> > emptyNodeList;
     auto& caches = Caches::getInstance();
     FrameBuilder frameBuilder(*layerUpdateQueue, lightGeometry, caches);
     layerUpdateQueue->clear();
     // TODO: Handle wide color gamut contexts
     BakedOpRenderer renderer(caches, mRenderThread.renderState(), opaque, wideColorGamut, lightInfo);
     LOG_ALWAYS_FATAL_IF(renderer.didDraw(), "shouldn't draw in buildlayer case");
     frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
 }

 TaskManager* OpenGLPipeline::getTaskManager() {
     return &Caches::getInstance().tasks;
 }

 static bool layerMatchesWH(OffscreenBuffer* layer, int width, int height) {
     return layer->viewportWidth == (uint32_t)width && layer->viewportHeight == (uint32_t)height;
 }

 bool OpenGLPipeline::createOrUpdateLayer(RenderNode* node,
         const DamageAccumulator& damageAccumulator, bool wideColorGamut) {
     RenderState& renderState = mRenderThread.renderState();
     OffscreenBufferPool& layerPool = renderState.layerPool();
     bool transformUpdateNeeded = false;
     if (node->getLayer() == nullptr) {
         node->setLayer(layerPool.get(renderState,
                 node->getWidth(), node->getHeight(), wideColorGamut));
         transformUpdateNeeded = true;
     } else if (!layerMatchesWH(node->getLayer(), node->getWidth(), node->getHeight())) {
         // TODO: remove now irrelevant, currently enqueued damage (respecting damage ordering)
         // Or, ideally, maintain damage between frames on node/layer so ordering is always correct
         if (node->properties().fitsOnLayer()) {
             node->setLayer(layerPool.resize(node->getLayer(), node->getWidth(), node->getHeight()));
         } else {
             destroyLayer(node);
         }
         transformUpdateNeeded = true;
     }

     if (transformUpdateNeeded && node->getLayer()) {
         // update the transform in window of the layer to reset its origin wrt light source position
         Matrix4 windowTransform;
         damageAccumulator.computeCurrentTransform(&windowTransform);
         node->getLayer()->setWindowTransform(windowTransform);
     }

     return transformUpdateNeeded;
 }

 bool OpenGLPipeline::pinImages(LsaVector<sk_sp<Bitmap>>& images) {
     TextureCache& cache = Caches::getInstance().textureCache;
     bool prefetchSucceeded = true;
     for (auto& bitmapResource : images) {
         prefetchSucceeded &= cache.prefetchAndMarkInUse(this, bitmapResource.get());
     }
     return prefetchSucceeded;
 }

 void OpenGLPipeline::unpinImages() {
     Caches::getInstance().textureCache.resetMarkInUse(this);
 }

 void OpenGLPipeline::destroyLayer(RenderNode* node) {
     if (OffscreenBuffer* layer = node->getLayer()) {
         layer->renderState.layerPool().putOrDelete(layer);
         node->setLayer(nullptr);
     }
 }

 void OpenGLPipeline::prepareToDraw(const RenderThread& thread, Bitmap* bitmap) {
     if (Caches::hasInstance() && thread.eglManager().hasEglContext()) {
         ATRACE_NAME("Bitmap#prepareToDraw task");
         Caches::getInstance().textureCache.prefetch(bitmap);
     }
 }

 void OpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
     DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
     if (thread.eglManager().hasEglContext()) {
         mode = DrawGlInfo::kModeProcess;
     }
     thread.renderState().invokeFunctor(functor, mode, nullptr);
 }

 #define FENCE_TIMEOUT 2000000000

 class AutoEglFence {
 public:
     AutoEglFence(EGLDisplay display)
             : mDisplay(display) {
         fence = eglCreateSyncKHR(mDisplay, EGL_SYNC_FENCE_KHR, NULL);
     }

     ~AutoEglFence() {
         if (fence != EGL_NO_SYNC_KHR) {
             eglDestroySyncKHR(mDisplay, fence);
         }
     }

     EGLSyncKHR fence = EGL_NO_SYNC_KHR;
 private:
     EGLDisplay mDisplay = EGL_NO_DISPLAY;
 };

 class AutoEglImage {
 public:
     AutoEglImage(EGLDisplay display, EGLClientBuffer clientBuffer)
             : mDisplay(display) {
         EGLint imageAttrs[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE };
         image = eglCreateImageKHR(display, EGL_NO_CONTEXT,
                 EGL_NATIVE_BUFFER_ANDROID, clientBuffer, imageAttrs);
     }

     ~AutoEglImage() {
         if (image != EGL_NO_IMAGE_KHR) {
             eglDestroyImageKHR(mDisplay, image);
         }
     }

     EGLImageKHR image = EGL_NO_IMAGE_KHR;
 private:
     EGLDisplay mDisplay = EGL_NO_DISPLAY;
 };

 class AutoGlTexture {
 public:
     AutoGlTexture(uirenderer::Caches& caches)
             : mCaches(caches) {
         glGenTextures(1, &mTexture);
         caches.textureState().bindTexture(mTexture);
     }

     ~AutoGlTexture() {
         mCaches.textureState().deleteTexture(mTexture);
     }

 private:
     uirenderer::Caches& mCaches;
     GLuint mTexture = 0;
 };

 static bool uploadBitmapToGraphicBuffer(uirenderer::Caches& caches, SkBitmap& bitmap,
         GraphicBuffer& buffer, GLint format, GLint type) {
     EGLDisplay display = eglGetCurrentDisplay();
     LOG_ALWAYS_FATAL_IF(display == EGL_NO_DISPLAY,
                 "Failed to get EGL_DEFAULT_DISPLAY! err=%s",
                 uirenderer::renderthread::EglManager::eglErrorString());
     // We use an EGLImage to access the content of the GraphicBuffer
     // The EGL image is later bound to a 2D texture
     EGLClientBuffer clientBuffer = (EGLClientBuffer) buffer.getNativeBuffer();
     AutoEglImage autoImage(display, clientBuffer);
     if (autoImage.image == EGL_NO_IMAGE_KHR) {
         ALOGW("Could not create EGL image, err =%s",
                 uirenderer::renderthread::EglManager::eglErrorString());
         return false;
     }
     AutoGlTexture glTexture(caches);
     glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, autoImage.image);

     GL_CHECKPOINT(MODERATE);

     glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bitmap.width(), bitmap.height(),
             format, type, bitmap.getPixels());

     GL_CHECKPOINT(MODERATE);

     // The fence is used to wait for the texture upload to finish
     // properly. We cannot rely on glFlush() and glFinish() as
     // some drivers completely ignore these API calls
     AutoEglFence autoFence(display);
     if (autoFence.fence == EGL_NO_SYNC_KHR) {
         LOG_ALWAYS_FATAL("Could not create sync fence %#x", eglGetError());
         return false;
     }
     // The flag EGL_SYNC_FLUSH_COMMANDS_BIT_KHR will trigger a
     // pipeline flush (similar to what a glFlush() would do.)
     EGLint waitStatus = eglClientWaitSyncKHR(display, autoFence.fence,
             EGL_SYNC_FLUSH_COMMANDS_BIT_KHR, FENCE_TIMEOUT);
     if (waitStatus != EGL_CONDITION_SATISFIED_KHR) {
         LOG_ALWAYS_FATAL("Failed to wait for the fence %#x", eglGetError());
         return false;
     }
     return true;
 }

 // TODO: handle SRGB sanely
 static PixelFormat internalFormatToPixelFormat(GLint internalFormat) {
     switch (internalFormat) {
     case GL_LUMINANCE:
         return PIXEL_FORMAT_RGBA_8888;
     case GL_SRGB8_ALPHA8:
         return PIXEL_FORMAT_RGBA_8888;
     case GL_RGBA:
         return PIXEL_FORMAT_RGBA_8888;
     case GL_RGB:
         return PIXEL_FORMAT_RGB_565;
     case GL_RGBA16F:
         return PIXEL_FORMAT_RGBA_FP16;
     default:
         LOG_ALWAYS_FATAL("Unsupported bitmap colorType: %d", internalFormat);
         return PIXEL_FORMAT_UNKNOWN;
     }
 }

 sk_sp<Bitmap> OpenGLPipeline::allocateHardwareBitmap(RenderThread& renderThread,
         SkBitmap& skBitmap) {
     renderThread.eglManager().initialize();
     uirenderer::Caches& caches = uirenderer::Caches::getInstance();

     const SkImageInfo& info = skBitmap.info();
     if (info.colorType() == kUnknown_SkColorType || info.colorType() == kAlpha_8_SkColorType) {
         ALOGW("unable to create hardware bitmap of colortype: %d", info.colorType());
         return nullptr;
     }

     bool needSRGB = uirenderer::transferFunctionCloseToSRGB(skBitmap.info().colorSpace());
     bool hasLinearBlending = caches.extensions().hasLinearBlending();
     GLint format, type, internalFormat;
     uirenderer::Texture::colorTypeToGlFormatAndType(caches, skBitmap.colorType(),
             needSRGB && hasLinearBlending, &internalFormat, &format, &type);

     PixelFormat pixelFormat = internalFormatToPixelFormat(internalFormat);
     sp<GraphicBuffer> buffer = new GraphicBuffer(info.width(), info.height(), pixelFormat,
             GraphicBuffer::USAGE_HW_TEXTURE |
             GraphicBuffer::USAGE_SW_WRITE_NEVER |
             GraphicBuffer::USAGE_SW_READ_NEVER,
             std::string("Bitmap::allocateHardwareBitmap pid [") + std::to_string(getpid()) + "]");

     status_t error = buffer->initCheck();
     if (error < 0) {
         ALOGW("createGraphicBuffer() failed in GraphicBuffer.create()");
         return nullptr;
     }

     SkBitmap bitmap;
     if (CC_UNLIKELY(uirenderer::Texture::hasUnsupportedColorType(skBitmap.info(),
             hasLinearBlending))) {
         sk_sp<SkColorSpace> sRGB = SkColorSpace::MakeSRGB();
         bitmap = uirenderer::Texture::uploadToN32(skBitmap, hasLinearBlending, std::move(sRGB));
     } else {
         bitmap = skBitmap;
     }

     if (!uploadBitmapToGraphicBuffer(caches, bitmap, *buffer, format, type)) {
         return nullptr;
     }
     return sk_sp<Bitmap>(new Bitmap(buffer.get(), bitmap.info()));
 }

 } /* namespace renderthread */
 } /* namespace uirenderer */
 } /* namespace android */
	/*
	* Copyright (C) 2016 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.
	*/

	#include "OpenGLPipeline.h"

	#include "DeferredLayerUpdater.h"
	#include "EglManager.h"
	#include "Frame.h"
	#include "GlLayer.h"
	#include "ProfileRenderer.h"
	#include "renderstate/RenderState.h"
	#include "OpenGLReadback.h"

	#include <cutils/properties.h>
	#include <strings.h>

	namespace android {
	namespace uirenderer {
	namespace renderthread {

	OpenGLPipeline::OpenGLPipeline(RenderThread& thread)
	: mEglManager(thread.eglManager())
	, mRenderThread(thread) {
	}

	MakeCurrentResult OpenGLPipeline::makeCurrent() {
	// TODO: Figure out why this workaround is needed, see b/13913604
	// In the meantime this matches the behavior of GLRenderer, so it is not a regression
	EGLint error = 0;
	bool haveNewSurface = mEglManager.makeCurrent(mEglSurface, &error);

	Caches::getInstance().textureCache.resetMarkInUse(this);
	if (!haveNewSurface) {
	return MakeCurrentResult::AlreadyCurrent;
	}
	return error ? MakeCurrentResult::Failed : MakeCurrentResult::Succeeded;
	}

	Frame OpenGLPipeline::getFrame() {
	LOG_ALWAYS_FATAL_IF(mEglSurface == EGL_NO_SURFACE,
	"drawRenderNode called on a context with no surface!");
	return mEglManager.beginFrame(mEglSurface);
	}

	bool OpenGLPipeline::draw(const Frame& frame, const SkRect& screenDirty, const SkRect& dirty,
	const FrameBuilder::LightGeometry& lightGeometry,
	LayerUpdateQueue* layerUpdateQueue,
	const Rect& contentDrawBounds, bool opaque, bool wideColorGamut,
	const BakedOpRenderer::LightInfo& lightInfo,
	const std::vector< sp<RenderNode> >& renderNodes,
	FrameInfoVisualizer* profiler) {

	mEglManager.damageFrame(frame, dirty);

	bool drew = false;


	auto& caches = Caches::getInstance();
	FrameBuilder frameBuilder(dirty, frame.width(), frame.height(), lightGeometry, caches);

	frameBuilder.deferLayers(*layerUpdateQueue);
	layerUpdateQueue->clear();

	frameBuilder.deferRenderNodeScene(renderNodes, contentDrawBounds);

	BakedOpRenderer renderer(caches, mRenderThread.renderState(),
	opaque, wideColorGamut, lightInfo);
	frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
	ProfileRenderer profileRenderer(renderer);
	profiler->draw(profileRenderer);
	drew = renderer.didDraw();

	// post frame cleanup
	caches.clearGarbage();
	caches.pathCache.trim();
	caches.tessellationCache.trim();

	#if DEBUG_MEMORY_USAGE
	caches.dumpMemoryUsage();
	#else
	if (CC_UNLIKELY(Properties::debugLevel & kDebugMemory)) {
	caches.dumpMemoryUsage();
	}
	#endif

	return drew;
	}

	bool OpenGLPipeline::swapBuffers(const Frame& frame, bool drew, const SkRect& screenDirty,
	FrameInfo* currentFrameInfo, bool* requireSwap) {

	GL_CHECKPOINT(LOW);

	// Even if we decided to cancel the frame, from the perspective of jank
	// metrics the frame was swapped at this point
	currentFrameInfo->markSwapBuffers();

	*requireSwap = drew \|\| mEglManager.damageRequiresSwap();

	if (*requireSwap && (CC_UNLIKELY(!mEglManager.swapBuffers(frame, screenDirty)))) {
	return false;
	}

	return *requireSwap;
	}

	bool OpenGLPipeline::copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap) {
	ATRACE_CALL();
	// acquire most recent buffer for drawing
	layer->updateTexImage();
	layer->apply();
	return OpenGLReadbackImpl::copyLayerInto(mRenderThread,
	static_cast<GlLayer&>(*layer->backingLayer()), bitmap);
	}

	static Layer* createLayer(RenderState& renderState, uint32_t layerWidth, uint32_t layerHeight,
	SkColorFilter* colorFilter, int alpha, SkBlendMode mode, bool blend) {
	GlLayer* layer = new GlLayer(renderState, layerWidth, layerHeight, colorFilter, alpha,
	mode, blend);
	Caches::getInstance().textureState().activateTexture(0);
	layer->generateTexture();
	return layer;
	}

	DeferredLayerUpdater* OpenGLPipeline::createTextureLayer() {
	mEglManager.initialize();
	return new DeferredLayerUpdater(mRenderThread.renderState(), createLayer, Layer::Api::OpenGL);
	}

	void OpenGLPipeline::onStop() {
	if (mEglManager.isCurrent(mEglSurface)) {
	mEglManager.makeCurrent(EGL_NO_SURFACE);
	}
	}

	bool OpenGLPipeline::setSurface(Surface* surface, SwapBehavior swapBehavior, ColorMode colorMode) {

	if (mEglSurface != EGL_NO_SURFACE) {
	mEglManager.destroySurface(mEglSurface);
	mEglSurface = EGL_NO_SURFACE;
	}

	if (surface) {
	const bool wideColorGamut = colorMode == ColorMode::WideColorGamut;
	mEglSurface = mEglManager.createSurface(surface, wideColorGamut);
	}

	if (mEglSurface != EGL_NO_SURFACE) {
	const bool preserveBuffer = (swapBehavior != SwapBehavior::kSwap_discardBuffer);
	mBufferPreserved = mEglManager.setPreserveBuffer(mEglSurface, preserveBuffer);
	return true;
	}

	return false;
	}

	bool OpenGLPipeline::isSurfaceReady() {
	return CC_UNLIKELY(mEglSurface != EGL_NO_SURFACE);
	}

	bool OpenGLPipeline::isContextReady() {
	return CC_LIKELY(mEglManager.hasEglContext());
	}

	void OpenGLPipeline::onDestroyHardwareResources() {
	Caches& caches = Caches::getInstance();
	// Make sure to release all the textures we were owning as there won't
	// be another draw
	caches.textureCache.resetMarkInUse(this);
	mRenderThread.renderState().flush(Caches::FlushMode::Layers);
	}

	void OpenGLPipeline::renderLayers(const FrameBuilder::LightGeometry& lightGeometry,
	LayerUpdateQueue* layerUpdateQueue, bool opaque, bool wideColorGamut,
	const BakedOpRenderer::LightInfo& lightInfo) {
	static const std::vector< sp<RenderNode> > emptyNodeList;
	auto& caches = Caches::getInstance();
	FrameBuilder frameBuilder(*layerUpdateQueue, lightGeometry, caches);
	layerUpdateQueue->clear();
	// TODO: Handle wide color gamut contexts
	BakedOpRenderer renderer(caches, mRenderThread.renderState(), opaque, wideColorGamut, lightInfo);
	LOG_ALWAYS_FATAL_IF(renderer.didDraw(), "shouldn't draw in buildlayer case");
	frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
	}

	TaskManager* OpenGLPipeline::getTaskManager() {
	return &Caches::getInstance().tasks;
	}

	static bool layerMatchesWH(OffscreenBuffer* layer, int width, int height) {
	return layer->viewportWidth == (uint32_t)width && layer->viewportHeight == (uint32_t)height;
	}

	bool OpenGLPipeline::createOrUpdateLayer(RenderNode* node,
	const DamageAccumulator& damageAccumulator, bool wideColorGamut) {
	RenderState& renderState = mRenderThread.renderState();
	OffscreenBufferPool& layerPool = renderState.layerPool();
	bool transformUpdateNeeded = false;
	if (node->getLayer() == nullptr) {
	node->setLayer(layerPool.get(renderState,
	node->getWidth(), node->getHeight(), wideColorGamut));
	transformUpdateNeeded = true;
	} else if (!layerMatchesWH(node->getLayer(), node->getWidth(), node->getHeight())) {
	// TODO: remove now irrelevant, currently enqueued damage (respecting damage ordering)
	// Or, ideally, maintain damage between frames on node/layer so ordering is always correct
	if (node->properties().fitsOnLayer()) {
	node->setLayer(layerPool.resize(node->getLayer(), node->getWidth(), node->getHeight()));
	} else {
	destroyLayer(node);
	}
	transformUpdateNeeded = true;
	}

	if (transformUpdateNeeded && node->getLayer()) {
	// update the transform in window of the layer to reset its origin wrt light source position
	Matrix4 windowTransform;
	damageAccumulator.computeCurrentTransform(&windowTransform);
	node->getLayer()->setWindowTransform(windowTransform);
	}

	return transformUpdateNeeded;
	}

	bool OpenGLPipeline::pinImages(LsaVector<sk_sp<Bitmap>>& images) {
	TextureCache& cache = Caches::getInstance().textureCache;
	bool prefetchSucceeded = true;
	for (auto& bitmapResource : images) {
	prefetchSucceeded &= cache.prefetchAndMarkInUse(this, bitmapResource.get());
	}
	return prefetchSucceeded;
	}

	void OpenGLPipeline::unpinImages() {
	Caches::getInstance().textureCache.resetMarkInUse(this);
	}

	void OpenGLPipeline::destroyLayer(RenderNode* node) {
	if (OffscreenBuffer* layer = node->getLayer()) {
	layer->renderState.layerPool().putOrDelete(layer);
	node->setLayer(nullptr);
	}
	}

	void OpenGLPipeline::prepareToDraw(const RenderThread& thread, Bitmap* bitmap) {
	if (Caches::hasInstance() && thread.eglManager().hasEglContext()) {
	ATRACE_NAME("Bitmap#prepareToDraw task");
	Caches::getInstance().textureCache.prefetch(bitmap);
	}
	}

	void OpenGLPipeline::invokeFunctor(const RenderThread& thread, Functor* functor) {
	DrawGlInfo::Mode mode = DrawGlInfo::kModeProcessNoContext;
	if (thread.eglManager().hasEglContext()) {
	mode = DrawGlInfo::kModeProcess;
	}
	thread.renderState().invokeFunctor(functor, mode, nullptr);
	}

	#define FENCE_TIMEOUT 2000000000

	class AutoEglFence {
	public:
	AutoEglFence(EGLDisplay display)
	: mDisplay(display) {
	fence = eglCreateSyncKHR(mDisplay, EGL_SYNC_FENCE_KHR, NULL);
	}

	~AutoEglFence() {
	if (fence != EGL_NO_SYNC_KHR) {
	eglDestroySyncKHR(mDisplay, fence);
	}
	}

	EGLSyncKHR fence = EGL_NO_SYNC_KHR;
	private:
	EGLDisplay mDisplay = EGL_NO_DISPLAY;
	};

	class AutoEglImage {
	public:
	AutoEglImage(EGLDisplay display, EGLClientBuffer clientBuffer)
	: mDisplay(display) {
	EGLint imageAttrs[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE };
	image = eglCreateImageKHR(display, EGL_NO_CONTEXT,
	EGL_NATIVE_BUFFER_ANDROID, clientBuffer, imageAttrs);
	}

	~AutoEglImage() {
	if (image != EGL_NO_IMAGE_KHR) {
	eglDestroyImageKHR(mDisplay, image);
	}
	}

	EGLImageKHR image = EGL_NO_IMAGE_KHR;
	private:
	EGLDisplay mDisplay = EGL_NO_DISPLAY;
	};

	class AutoGlTexture {
	public:
	AutoGlTexture(uirenderer::Caches& caches)
	: mCaches(caches) {
	glGenTextures(1, &mTexture);
	caches.textureState().bindTexture(mTexture);
	}

	~AutoGlTexture() {
	mCaches.textureState().deleteTexture(mTexture);
	}

	private:
	uirenderer::Caches& mCaches;
	GLuint mTexture = 0;
	};

	static bool uploadBitmapToGraphicBuffer(uirenderer::Caches& caches, SkBitmap& bitmap,
	GraphicBuffer& buffer, GLint format, GLint type) {
	EGLDisplay display = eglGetCurrentDisplay();
	LOG_ALWAYS_FATAL_IF(display == EGL_NO_DISPLAY,
	"Failed to get EGL_DEFAULT_DISPLAY! err=%s",
	uirenderer::renderthread::EglManager::eglErrorString());
	// We use an EGLImage to access the content of the GraphicBuffer
	// The EGL image is later bound to a 2D texture
	EGLClientBuffer clientBuffer = (EGLClientBuffer) buffer.getNativeBuffer();
	AutoEglImage autoImage(display, clientBuffer);
	if (autoImage.image == EGL_NO_IMAGE_KHR) {
	ALOGW("Could not create EGL image, err =%s",
	uirenderer::renderthread::EglManager::eglErrorString());
	return false;
	}
	AutoGlTexture glTexture(caches);
	glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, autoImage.image);

	GL_CHECKPOINT(MODERATE);

	glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, bitmap.width(), bitmap.height(),
	format, type, bitmap.getPixels());

	GL_CHECKPOINT(MODERATE);

	// The fence is used to wait for the texture upload to finish
	// properly. We cannot rely on glFlush() and glFinish() as
	// some drivers completely ignore these API calls
	AutoEglFence autoFence(display);
	if (autoFence.fence == EGL_NO_SYNC_KHR) {
	LOG_ALWAYS_FATAL("Could not create sync fence %#x", eglGetError());
	return false;
	}
	// The flag EGL_SYNC_FLUSH_COMMANDS_BIT_KHR will trigger a
	// pipeline flush (similar to what a glFlush() would do.)
	EGLint waitStatus = eglClientWaitSyncKHR(display, autoFence.fence,
	EGL_SYNC_FLUSH_COMMANDS_BIT_KHR, FENCE_TIMEOUT);
	if (waitStatus != EGL_CONDITION_SATISFIED_KHR) {
	LOG_ALWAYS_FATAL("Failed to wait for the fence %#x", eglGetError());
	return false;
	}
	return true;
	}

	// TODO: handle SRGB sanely
	static PixelFormat internalFormatToPixelFormat(GLint internalFormat) {
	switch (internalFormat) {
	case GL_LUMINANCE:
	return PIXEL_FORMAT_RGBA_8888;
	case GL_SRGB8_ALPHA8:
	return PIXEL_FORMAT_RGBA_8888;
	case GL_RGBA:
	return PIXEL_FORMAT_RGBA_8888;
	case GL_RGB:
	return PIXEL_FORMAT_RGB_565;
	case GL_RGBA16F:
	return PIXEL_FORMAT_RGBA_FP16;
	default:
	LOG_ALWAYS_FATAL("Unsupported bitmap colorType: %d", internalFormat);
	return PIXEL_FORMAT_UNKNOWN;
	}
	}

	sk_sp<Bitmap> OpenGLPipeline::allocateHardwareBitmap(RenderThread& renderThread,
	SkBitmap& skBitmap) {
	renderThread.eglManager().initialize();
	uirenderer::Caches& caches = uirenderer::Caches::getInstance();

	const SkImageInfo& info = skBitmap.info();
	if (info.colorType() == kUnknown_SkColorType \|\| info.colorType() == kAlpha_8_SkColorType) {
	ALOGW("unable to create hardware bitmap of colortype: %d", info.colorType());
	return nullptr;
	}

	bool needSRGB = uirenderer::transferFunctionCloseToSRGB(skBitmap.info().colorSpace());
	bool hasLinearBlending = caches.extensions().hasLinearBlending();
	GLint format, type, internalFormat;
	uirenderer::Texture::colorTypeToGlFormatAndType(caches, skBitmap.colorType(),
	needSRGB && hasLinearBlending, &internalFormat, &format, &type);

	PixelFormat pixelFormat = internalFormatToPixelFormat(internalFormat);
	sp<GraphicBuffer> buffer = new GraphicBuffer(info.width(), info.height(), pixelFormat,
	GraphicBuffer::USAGE_HW_TEXTURE \|
	GraphicBuffer::USAGE_SW_WRITE_NEVER \|
	GraphicBuffer::USAGE_SW_READ_NEVER,
	std::string("Bitmap::allocateHardwareBitmap pid [") + std::to_string(getpid()) + "]");

	status_t error = buffer->initCheck();
	if (error < 0) {
	ALOGW("createGraphicBuffer() failed in GraphicBuffer.create()");
	return nullptr;
	}

	SkBitmap bitmap;
	if (CC_UNLIKELY(uirenderer::Texture::hasUnsupportedColorType(skBitmap.info(),
	hasLinearBlending))) {
	sk_sp<SkColorSpace> sRGB = SkColorSpace::MakeSRGB();
	bitmap = uirenderer::Texture::uploadToN32(skBitmap, hasLinearBlending, std::move(sRGB));
	} else {
	bitmap = skBitmap;
	}

	if (!uploadBitmapToGraphicBuffer(caches, bitmap, *buffer, format, type)) {
	return nullptr;
	}
	return sk_sp<Bitmap>(new Bitmap(buffer.get(), bitmap.info()));
	}

	} /* namespace renderthread */
	} /* namespace uirenderer */
	} /* namespace android */