DeferredLayerUpdater.cpp revision 860d155f866cc15a725e7ce03763280987f24901
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 25DeferredLayerUpdater::DeferredLayerUpdater(Layer* layer, OpenGLRenderer* renderer) 26 : mDisplayList(0) 27 , mSurfaceTexture(0) 28 , mTransform(0) 29 , mNeedsGLContextAttach(false) 30 , mUpdateTexImage(false) 31 , mLayer(layer) 32 , mCaches(Caches::getInstance()) { 33 mWidth = mLayer->layer.getWidth(); 34 mHeight = mLayer->layer.getHeight(); 35 mBlend = mLayer->isBlend(); 36 mColorFilter = SkSafeRef(mLayer->getColorFilter()); 37 mAlpha = mLayer->getAlpha(); 38 mMode = mLayer->getMode(); 39 mDirtyRect.setEmpty(); 40} 41 42DeferredLayerUpdater::~DeferredLayerUpdater() { 43 SkSafeUnref(mColorFilter); 44 setTransform(0); 45 if (mLayer) { 46 mCaches.resourceCache.decrementRefcount(mLayer); 47 } 48} 49 50void DeferredLayerUpdater::setPaint(const SkPaint* paint) { 51 OpenGLRenderer::getAlphaAndModeDirect(paint, &mAlpha, &mMode); 52 SkColorFilter* colorFilter = (paint) ? paint->getColorFilter() : NULL; 53 SkRefCnt_SafeAssign(mColorFilter, colorFilter); 54} 55 56void DeferredLayerUpdater::setDisplayList(RenderNode* displayList, 57 int left, int top, int right, int bottom) { 58 mDisplayList = displayList; 59 if (mDirtyRect.isEmpty()) { 60 mDirtyRect.set(left, top, right, bottom); 61 } else { 62 mDirtyRect.unionWith(Rect(left, top, right, bottom)); 63 } 64} 65 66bool DeferredLayerUpdater::apply(TreeInfo& info) { 67 bool success = true; 68 // These properties are applied the same to both layer types 69 mLayer->setColorFilter(mColorFilter); 70 mLayer->setAlpha(mAlpha, mMode); 71 72 if (mDisplayList.get()) { 73 if (mWidth != mLayer->layer.getWidth() || mHeight != mLayer->layer.getHeight()) { 74 success = LayerRenderer::resizeLayer(mLayer, mWidth, mHeight); 75 } 76 mLayer->setBlend(mBlend); 77 mDisplayList->prepareTree(info); 78 mLayer->updateDeferred(mDisplayList.get(), 79 mDirtyRect.left, mDirtyRect.top, mDirtyRect.right, mDirtyRect.bottom); 80 mDirtyRect.setEmpty(); 81 mDisplayList = 0; 82 } else if (mSurfaceTexture.get()) { 83 if (mNeedsGLContextAttach) { 84 mNeedsGLContextAttach = false; 85 mSurfaceTexture->attachToContext(mLayer->getTexture()); 86 } 87 if (mUpdateTexImage) { 88 mUpdateTexImage = false; 89 doUpdateTexImage(); 90 } 91 if (mTransform) { 92 mLayer->getTransform().load(*mTransform); 93 setTransform(0); 94 } 95 } 96 return success; 97} 98 99void DeferredLayerUpdater::doUpdateTexImage() { 100 if (mSurfaceTexture->updateTexImage() == NO_ERROR) { 101 float transform[16]; 102 103 int64_t frameNumber = mSurfaceTexture->getFrameNumber(); 104 // If the GLConsumer queue is in synchronous mode, need to discard all 105 // but latest frame, using the frame number to tell when we no longer 106 // have newer frames to target. Since we can't tell which mode it is in, 107 // do this unconditionally. 108 int dropCounter = 0; 109 while (mSurfaceTexture->updateTexImage() == NO_ERROR) { 110 int64_t newFrameNumber = mSurfaceTexture->getFrameNumber(); 111 if (newFrameNumber == frameNumber) break; 112 frameNumber = newFrameNumber; 113 dropCounter++; 114 } 115 116 bool forceFilter = false; 117 sp<GraphicBuffer> buffer = mSurfaceTexture->getCurrentBuffer(); 118 if (buffer != NULL) { 119 // force filtration if buffer size != layer size 120 forceFilter = mWidth != buffer->getWidth() 121 || mHeight != buffer->getHeight(); 122 } 123 124 #if DEBUG_RENDERER 125 if (dropCounter > 0) { 126 RENDERER_LOGD("Dropped %d frames on texture layer update", dropCounter); 127 } 128 #endif 129 mSurfaceTexture->getTransformMatrix(transform); 130 GLenum renderTarget = mSurfaceTexture->getCurrentTextureTarget(); 131 132 LayerRenderer::updateTextureLayer(mLayer, mWidth, mHeight, 133 !mBlend, forceFilter, renderTarget, transform); 134 } 135} 136 137} /* namespace uirenderer */ 138} /* namespace android */ 139