DeferredLayerUpdater.cpp revision 8de65a8e05285df52a1e6f0c1d5616dd233298a7
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 if (mLayer) { 45 mCaches.resourceCache.decrementRefcount(mLayer); 46 } 47} 48 49void DeferredLayerUpdater::setPaint(const SkPaint* paint) { 50 OpenGLRenderer::getAlphaAndModeDirect(paint, &mAlpha, &mMode); 51 SkColorFilter* colorFilter = (paint) ? paint->getColorFilter() : NULL; 52 SkRefCnt_SafeAssign(mColorFilter, colorFilter); 53} 54 55void DeferredLayerUpdater::setDisplayList(RenderNode* displayList, 56 int left, int top, int right, int bottom) { 57 mDisplayList = displayList; 58 if (mDirtyRect.isEmpty()) { 59 mDirtyRect.set(left, top, right, bottom); 60 } else { 61 mDirtyRect.unionWith(Rect(left, top, right, bottom)); 62 } 63} 64 65bool DeferredLayerUpdater::apply() { 66 bool success = true; 67 // These properties are applied the same to both layer types 68 mLayer->setColorFilter(mColorFilter); 69 mLayer->setAlpha(mAlpha, mMode); 70 71 if (mDisplayList.get()) { 72 if (mWidth != mLayer->layer.getWidth() || mHeight != mLayer->layer.getHeight()) { 73 success = LayerRenderer::resizeLayer(mLayer, mWidth, mHeight); 74 } 75 mLayer->setBlend(mBlend); 76 mDisplayList->pushStagingChanges(); 77 mLayer->updateDeferred(mDisplayList.get(), 78 mDirtyRect.left, mDirtyRect.top, mDirtyRect.right, mDirtyRect.bottom); 79 mDirtyRect.setEmpty(); 80 mDisplayList = 0; 81 } else if (mSurfaceTexture.get()) { 82 if (mNeedsGLContextAttach) { 83 mNeedsGLContextAttach = false; 84 mSurfaceTexture->attachToContext(mLayer->getTexture()); 85 } 86 if (mUpdateTexImage) { 87 mUpdateTexImage = false; 88 doUpdateTexImage(); 89 } 90 if (mTransform) { 91 mLayer->getTransform().load(*mTransform); 92 setTransform(0); 93 } 94 } 95 return success; 96} 97 98void DeferredLayerUpdater::doUpdateTexImage() { 99 if (mSurfaceTexture->updateTexImage() == NO_ERROR) { 100 float transform[16]; 101 102 int64_t frameNumber = mSurfaceTexture->getFrameNumber(); 103 // If the GLConsumer queue is in synchronous mode, need to discard all 104 // but latest frame, using the frame number to tell when we no longer 105 // have newer frames to target. Since we can't tell which mode it is in, 106 // do this unconditionally. 107 int dropCounter = 0; 108 while (mSurfaceTexture->updateTexImage() == NO_ERROR) { 109 int64_t newFrameNumber = mSurfaceTexture->getFrameNumber(); 110 if (newFrameNumber == frameNumber) break; 111 frameNumber = newFrameNumber; 112 dropCounter++; 113 } 114 115 bool forceFilter = false; 116 sp<GraphicBuffer> buffer = mSurfaceTexture->getCurrentBuffer(); 117 if (buffer != NULL) { 118 // force filtration if buffer size != layer size 119 forceFilter = mWidth != buffer->getWidth() 120 || mHeight != buffer->getHeight(); 121 } 122 123 #if DEBUG_RENDERER 124 if (dropCounter > 0) { 125 RENDERER_LOGD("Dropped %d frames on texture layer update", dropCounter); 126 } 127 #endif 128 mSurfaceTexture->getTransformMatrix(transform); 129 GLenum renderTarget = mSurfaceTexture->getCurrentTextureTarget(); 130 131 LayerRenderer::updateTextureLayer(mLayer, mWidth, mHeight, 132 !mBlend, forceFilter, renderTarget, transform); 133 } 134} 135 136} /* namespace uirenderer */ 137} /* namespace android */ 138