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#include "renderthread/EglManager.h" 22#include "renderthread/RenderTask.h" 23 24namespace android { 25namespace uirenderer { 26 27DeferredLayerUpdater::DeferredLayerUpdater(Layer* layer) 28 : mSurfaceTexture(nullptr) 29 , mTransform(nullptr) 30 , mNeedsGLContextAttach(false) 31 , mUpdateTexImage(false) 32 , mLayer(layer) 33 , mCaches(Caches::getInstance()) { 34 mWidth = mLayer->layer.getWidth(); 35 mHeight = mLayer->layer.getHeight(); 36 mBlend = mLayer->isBlend(); 37 mColorFilter = SkSafeRef(mLayer->getColorFilter()); 38 mAlpha = mLayer->getAlpha(); 39 mMode = mLayer->getMode(); 40} 41 42DeferredLayerUpdater::~DeferredLayerUpdater() { 43 SkSafeUnref(mColorFilter); 44 setTransform(nullptr); 45 mLayer->postDecStrong(); 46 mLayer = nullptr; 47} 48 49void DeferredLayerUpdater::setPaint(const SkPaint* paint) { 50 mAlpha = PaintUtils::getAlphaDirect(paint); 51 mMode = PaintUtils::getXfermodeDirect(paint); 52 SkColorFilter* colorFilter = (paint) ? paint->getColorFilter() : nullptr; 53 SkRefCnt_SafeAssign(mColorFilter, colorFilter); 54} 55 56void DeferredLayerUpdater::apply() { 57 // These properties are applied the same to both layer types 58 mLayer->setColorFilter(mColorFilter); 59 mLayer->setAlpha(mAlpha, mMode); 60 61 if (mSurfaceTexture.get()) { 62 if (mNeedsGLContextAttach) { 63 mNeedsGLContextAttach = false; 64 mSurfaceTexture->attachToContext(mLayer->getTextureId()); 65 } 66 if (mUpdateTexImage) { 67 mUpdateTexImage = false; 68 doUpdateTexImage(); 69 } 70 if (mTransform) { 71 mLayer->getTransform().load(*mTransform); 72 setTransform(nullptr); 73 } 74 } 75} 76 77void DeferredLayerUpdater::doUpdateTexImage() { 78 if (mSurfaceTexture->updateTexImage() == NO_ERROR) { 79 float transform[16]; 80 81 int64_t frameNumber = mSurfaceTexture->getFrameNumber(); 82 // If the GLConsumer queue is in synchronous mode, need to discard all 83 // but latest frame, using the frame number to tell when we no longer 84 // have newer frames to target. Since we can't tell which mode it is in, 85 // do this unconditionally. 86 int dropCounter = 0; 87 while (mSurfaceTexture->updateTexImage() == NO_ERROR) { 88 int64_t newFrameNumber = mSurfaceTexture->getFrameNumber(); 89 if (newFrameNumber == frameNumber) break; 90 frameNumber = newFrameNumber; 91 dropCounter++; 92 } 93 94 bool forceFilter = false; 95 sp<GraphicBuffer> buffer = mSurfaceTexture->getCurrentBuffer(); 96 if (buffer != nullptr) { 97 // force filtration if buffer size != layer size 98 forceFilter = mWidth != static_cast<int>(buffer->getWidth()) 99 || mHeight != static_cast<int>(buffer->getHeight()); 100 } 101 102 #if DEBUG_RENDERER 103 if (dropCounter > 0) { 104 RENDERER_LOGD("Dropped %d frames on texture layer update", dropCounter); 105 } 106 #endif 107 mSurfaceTexture->getTransformMatrix(transform); 108 GLenum renderTarget = mSurfaceTexture->getCurrentTextureTarget(); 109 110 LOG_ALWAYS_FATAL_IF(renderTarget != GL_TEXTURE_2D && renderTarget != GL_TEXTURE_EXTERNAL_OES, 111 "doUpdateTexImage target %x, 2d %x, EXT %x", 112 renderTarget, GL_TEXTURE_2D, GL_TEXTURE_EXTERNAL_OES); 113 LayerRenderer::updateTextureLayer(mLayer, mWidth, mHeight, 114 !mBlend, forceFilter, renderTarget, transform); 115 } 116} 117 118void DeferredLayerUpdater::detachSurfaceTexture() { 119 if (mSurfaceTexture.get()) { 120 status_t err = mSurfaceTexture->detachFromContext(); 121 if (err != 0) { 122 // TODO: Elevate to fatal exception 123 ALOGE("Failed to detach SurfaceTexture from context %d", err); 124 } 125 mSurfaceTexture = nullptr; 126 mLayer->clearTexture(); 127 } 128} 129 130} /* namespace uirenderer */ 131} /* namespace android */ 132