DeferredLayerUpdater.cpp revision d72e0a339b54af0c4e731513bbad120dff694723
1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16#include "DeferredLayerUpdater.h" 17 18#include "OpenGLRenderer.h" 19 20#include "LayerRenderer.h" 21 22namespace android { 23namespace uirenderer { 24 25static void defaultLayerDestroyer(Layer* layer) { 26 Caches::getInstance().resourceCache.decrementRefcount(layer); 27} 28 29DeferredLayerUpdater::DeferredLayerUpdater(Layer* layer, LayerDestroyer destroyer) 30 : mDisplayList(0) 31 , mSurfaceTexture(0) 32 , mTransform(0) 33 , mNeedsGLContextAttach(false) 34 , mUpdateTexImage(false) 35 , mLayer(layer) 36 , mCaches(Caches::getInstance()) 37 , mDestroyer(destroyer) { 38 mWidth = mLayer->layer.getWidth(); 39 mHeight = mLayer->layer.getHeight(); 40 mBlend = mLayer->isBlend(); 41 mColorFilter = SkSafeRef(mLayer->getColorFilter()); 42 mAlpha = mLayer->getAlpha(); 43 mMode = mLayer->getMode(); 44 mDirtyRect.setEmpty(); 45 46 if (!mDestroyer) { 47 mDestroyer = defaultLayerDestroyer; 48 } 49} 50 51DeferredLayerUpdater::~DeferredLayerUpdater() { 52 SkSafeUnref(mColorFilter); 53 setTransform(0); 54 mDestroyer(mLayer); 55} 56 57void DeferredLayerUpdater::setPaint(const SkPaint* paint) { 58 OpenGLRenderer::getAlphaAndModeDirect(paint, &mAlpha, &mMode); 59 SkColorFilter* colorFilter = (paint) ? paint->getColorFilter() : NULL; 60 SkRefCnt_SafeAssign(mColorFilter, colorFilter); 61} 62 63void DeferredLayerUpdater::setDisplayList(RenderNode* displayList, 64 int left, int top, int right, int bottom) { 65 mDisplayList = displayList; 66 if (mDirtyRect.isEmpty()) { 67 mDirtyRect.set(left, top, right, bottom); 68 } else { 69 mDirtyRect.unionWith(Rect(left, top, right, bottom)); 70 } 71} 72 73bool DeferredLayerUpdater::apply(TreeInfo& info) { 74 bool success = true; 75 // These properties are applied the same to both layer types 76 mLayer->setColorFilter(mColorFilter); 77 mLayer->setAlpha(mAlpha, mMode); 78 79 if (mDisplayList.get()) { 80 if (mWidth != mLayer->layer.getWidth() || mHeight != mLayer->layer.getHeight()) { 81 success = LayerRenderer::resizeLayer(mLayer, mWidth, mHeight); 82 } 83 mLayer->setBlend(mBlend); 84 mDisplayList->prepareTree(info); 85 mLayer->updateDeferred(mDisplayList.get(), 86 mDirtyRect.left, mDirtyRect.top, mDirtyRect.right, mDirtyRect.bottom); 87 mDirtyRect.setEmpty(); 88 mDisplayList = 0; 89 } else if (mSurfaceTexture.get()) { 90 if (mNeedsGLContextAttach) { 91 mNeedsGLContextAttach = false; 92 mSurfaceTexture->attachToContext(mLayer->getTexture()); 93 } 94 if (mUpdateTexImage) { 95 mUpdateTexImage = false; 96 doUpdateTexImage(); 97 } 98 if (mTransform) { 99 mLayer->getTransform().load(*mTransform); 100 setTransform(0); 101 } 102 } 103 return success; 104} 105 106void DeferredLayerUpdater::doUpdateTexImage() { 107 if (mSurfaceTexture->updateTexImage() == NO_ERROR) { 108 float transform[16]; 109 110 int64_t frameNumber = mSurfaceTexture->getFrameNumber(); 111 // If the GLConsumer queue is in synchronous mode, need to discard all 112 // but latest frame, using the frame number to tell when we no longer 113 // have newer frames to target. Since we can't tell which mode it is in, 114 // do this unconditionally. 115 int dropCounter = 0; 116 while (mSurfaceTexture->updateTexImage() == NO_ERROR) { 117 int64_t newFrameNumber = mSurfaceTexture->getFrameNumber(); 118 if (newFrameNumber == frameNumber) break; 119 frameNumber = newFrameNumber; 120 dropCounter++; 121 } 122 123 bool forceFilter = false; 124 sp<GraphicBuffer> buffer = mSurfaceTexture->getCurrentBuffer(); 125 if (buffer != NULL) { 126 // force filtration if buffer size != layer size 127 forceFilter = mWidth != buffer->getWidth() 128 || mHeight != buffer->getHeight(); 129 } 130 131 #if DEBUG_RENDERER 132 if (dropCounter > 0) { 133 RENDERER_LOGD("Dropped %d frames on texture layer update", dropCounter); 134 } 135 #endif 136 mSurfaceTexture->getTransformMatrix(transform); 137 GLenum renderTarget = mSurfaceTexture->getCurrentTextureTarget(); 138 139 LayerRenderer::updateTextureLayer(mLayer, mWidth, mHeight, 140 !mBlend, forceFilter, renderTarget, transform); 141 } 142} 143 144} /* namespace uirenderer */ 145} /* namespace android */ 146