Layer.cpp revision 45d845190d26ae27de45390460f50a6a8639e2e5
18bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)/* 28bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * Copyright (C) 2007 The Android Open Source Project 38bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * 48bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * Licensed under the Apache License, Version 2.0 (the "License"); 58bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * you may not use this file except in compliance with the License. 68bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * You may obtain a copy of the License at 78bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * 88bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * http://www.apache.org/licenses/LICENSE-2.0 98bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * 108bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * Unless required by applicable law or agreed to in writing, software 118bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * distributed under the License is distributed on an "AS IS" BASIS, 128bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * See the License for the specific language governing permissions and 148bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * limitations under the License. 158bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) */ 168bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 178bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <stdlib.h> 188bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <stdint.h> 198bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <sys/types.h> 208bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 218bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <cutils/compiler.h> 228bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <cutils/native_handle.h> 238bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <cutils/properties.h> 248bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 258bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <utils/Errors.h> 268bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <utils/Log.h> 278bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <utils/StopWatch.h> 288bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 298bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <ui/GraphicBuffer.h> 308bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <ui/PixelFormat.h> 318bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 328bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include <surfaceflinger/Surface.h> 338bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 348bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include "clz.h" 358bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include "DisplayHardware/DisplayHardware.h" 368bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include "DisplayHardware/HWComposer.h" 378bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include "GLExtensions.h" 388bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include "Layer.h" 398bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include "SurfaceFlinger.h" 408bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#include "SurfaceTextureLayer.h" 418bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 428bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)#define DEBUG_RESIZE 0 438bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 448bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 458bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)namespace android { 468bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 478bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)// --------------------------------------------------------------------------- 488bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 498bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)Layer::Layer(SurfaceFlinger* flinger, 508bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) DisplayID display, const sp<Client>& client) 518bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) : LayerBaseClient(flinger, display, client), 528bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mTextureName(-1U), 538bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mQueuedFrames(0), 548bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mCurrentTransform(0), 558bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE), 568bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mCurrentOpacity(true), 578bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mFormat(PIXEL_FORMAT_NONE), 588bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mGLExtensions(GLExtensions::getInstance()), 598bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mOpaqueLayer(true), 608bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mNeedsDithering(false), 618bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSecure(false), 628bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mProtectedByApp(false) 638bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 648bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mCurrentCrop.makeInvalid(); 658bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) glGenTextures(1, &mTextureName); 668bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 678bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 688bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void Layer::onFirstRef() 698bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 708bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) LayerBaseClient::onFirstRef(); 718bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 728bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) struct FrameQueuedListener : public SurfaceTexture::FrameAvailableListener { 738bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) FrameQueuedListener(Layer* layer) : mLayer(layer) { } 748bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) private: 758bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) wp<Layer> mLayer; 768bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) virtual void onFrameAvailable() { 778bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) sp<Layer> that(mLayer.promote()); 788bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if (that != 0) { 798bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) that->onFrameQueued(); 808bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 818bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 828bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) }; 838bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSurfaceTexture = new SurfaceTextureLayer(mTextureName, this); 848bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSurfaceTexture->setFrameAvailableListener(new FrameQueuedListener(this)); 858bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSurfaceTexture->setSynchronousMode(true); 868bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSurfaceTexture->setBufferCountServer(2); 878bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 888bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 898bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)Layer::~Layer() 908bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 918bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) class MessageDestroyGLState : public MessageBase { 928bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) GLuint texture; 938bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) public: 948bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) MessageDestroyGLState(GLuint texture) : texture(texture) { } 958bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) virtual bool handler() { 968bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) glDeleteTextures(1, &texture); 978bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) return true; 988bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 998bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) }; 1008bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mFlinger->postMessageAsync( new MessageDestroyGLState(mTextureName) ); 1018bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 1028bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1038bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void Layer::onFrameQueued() { 1048bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) android_atomic_inc(&mQueuedFrames); 1058bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mFlinger->signalEvent(); 1068bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 1078bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1088bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)// called with SurfaceFlinger::mStateLock as soon as the layer is entered 1098bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)// in the purgatory list 1108bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void Layer::onRemoved() 1118bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 1128bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSurfaceTexture->abandon(); 1138bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 1148bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1158bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)sp<ISurface> Layer::createSurface() 1168bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 1178bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) class BSurface : public BnSurface, public LayerCleaner { 1188bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) wp<const Layer> mOwner; 1198bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) virtual sp<ISurfaceTexture> getSurfaceTexture() const { 1208bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) sp<ISurfaceTexture> res; 1218bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) sp<const Layer> that( mOwner.promote() ); 1228bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if (that != NULL) { 1238bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) res = that->mSurfaceTexture; 1248bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 1258bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) return res; 1268bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 1278bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) public: 1288bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) BSurface(const sp<SurfaceFlinger>& flinger, 1298bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) const sp<Layer>& layer) 1308bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) : LayerCleaner(flinger, layer), mOwner(layer) { } 1318bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) }; 1328bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) sp<ISurface> sur(new BSurface(mFlinger, this)); 1338bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) return sur; 1348bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 1358bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1368bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)wp<IBinder> Layer::getSurfaceTextureBinder() const 1378bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 1388bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) return mSurfaceTexture->asBinder(); 1398bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 1408bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1418bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)status_t Layer::setBuffers( uint32_t w, uint32_t h, 1428bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) PixelFormat format, uint32_t flags) 1438bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 1448bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // this surfaces pixel format 1458bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) PixelFormatInfo info; 1468bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) status_t err = getPixelFormatInfo(format, &info); 1478bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if (err) return err; 1488bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1498bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // the display's pixel format 1508bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1518bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) uint32_t const maxSurfaceDims = min( 1528bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) hw.getMaxTextureSize(), hw.getMaxViewportDims()); 1538bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1548bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // never allow a surface larger than what our underlying GL implementation 1558bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // can handle. 1568bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if ((uint32_t(w)>maxSurfaceDims) || (uint32_t(h)>maxSurfaceDims)) { 1578bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) return BAD_VALUE; 1588bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 1598bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1608bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) PixelFormatInfo displayInfo; 1618bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) getPixelFormatInfo(hw.getFormat(), &displayInfo); 1628bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) const uint32_t hwFlags = hw.getFlags(); 1638bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1648bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mFormat = format; 1658bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1668bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSecure = (flags & ISurfaceComposer::eSecure) ? true : false; 1678bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mProtectedByApp = (flags & ISurfaceComposer::eProtectedByApp) ? true : false; 1688bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mOpaqueLayer = (flags & ISurfaceComposer::eOpaque); 1698bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mCurrentOpacity = getOpacityForFormat(format); 1708bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1718bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSurfaceTexture->setDefaultBufferSize(w, h); 1728bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mSurfaceTexture->setDefaultBufferFormat(format); 1738bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1748bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // we use the red index 1758bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) int displayRedSize = displayInfo.getSize(PixelFormatInfo::INDEX_RED); 1768bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) int layerRedsize = info.getSize(PixelFormatInfo::INDEX_RED); 1778bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) mNeedsDithering = layerRedsize > displayRedSize; 1788bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1798bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) return NO_ERROR; 1808bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)} 1818bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1828bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles)void Layer::setGeometry(hwc_layer_t* hwcl) 1838bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles){ 1848bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) LayerBaseClient::setGeometry(hwcl); 1858bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1868bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) hwcl->flags &= ~HWC_SKIP_LAYER; 1878bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1888bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // we can't do alpha-fade with the hwc HAL 1898bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) const State& s(drawingState()); 1908bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if (s.alpha < 0xFF) { 1918bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) hwcl->flags = HWC_SKIP_LAYER; 1928bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 1938bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 1948bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) /* 1958bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * Transformations are applied in this order: 1968bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * 1) buffer orientation/flip/mirror 1978bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * 2) state transformation (window manager) 1988bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * 3) layer orientation (screen orientation) 1998bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * mTransform is already the composition of (2) and (3) 2008bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) * (NOTE: the matrices are multiplied in reverse order) 2018bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) */ 2028bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 2038bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) const Transform bufferOrientation(mCurrentTransform); 2048bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) const Transform tr(mTransform * bufferOrientation); 2058bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 206 // this gives us only the "orientation" component of the transform 207 const uint32_t finalTransform = tr.getOrientation(); 208 209 // we can only handle simple transformation 210 if (finalTransform & Transform::ROT_INVALID) { 211 hwcl->flags = HWC_SKIP_LAYER; 212 } else { 213 hwcl->transform = finalTransform; 214 } 215} 216 217void Layer::setPerFrameData(hwc_layer_t* hwcl) { 218 const sp<GraphicBuffer>& buffer(mActiveBuffer); 219 if (buffer == NULL) { 220 // this can happen if the client never drew into this layer yet, 221 // or if we ran out of memory. In that case, don't let 222 // HWC handle it. 223 hwcl->flags |= HWC_SKIP_LAYER; 224 hwcl->handle = NULL; 225 } else { 226 hwcl->handle = buffer->handle; 227 } 228 229 if (isCropped()) { 230 hwcl->sourceCrop.left = mCurrentCrop.left; 231 hwcl->sourceCrop.top = mCurrentCrop.top; 232 hwcl->sourceCrop.right = mCurrentCrop.right; 233 hwcl->sourceCrop.bottom = mCurrentCrop.bottom; 234 } else { 235 hwcl->sourceCrop.left = 0; 236 hwcl->sourceCrop.top = 0; 237 if (buffer != NULL) { 238 hwcl->sourceCrop.right = buffer->width; 239 hwcl->sourceCrop.bottom = buffer->height; 240 } else { 241 hwcl->sourceCrop.right = mTransformedBounds.width(); 242 hwcl->sourceCrop.bottom = mTransformedBounds.height(); 243 } 244 } 245} 246 247void Layer::onDraw(const Region& clip) const 248{ 249 if (CC_UNLIKELY(mActiveBuffer == 0)) { 250 // the texture has not been created yet, this Layer has 251 // in fact never been drawn into. This happens frequently with 252 // SurfaceView because the WindowManager can't know when the client 253 // has drawn the first time. 254 255 // If there is nothing under us, we paint the screen in black, otherwise 256 // we just skip this update. 257 258 // figure out if there is something below us 259 Region under; 260 const SurfaceFlinger::LayerVector& drawingLayers( 261 mFlinger->mDrawingState.layersSortedByZ); 262 const size_t count = drawingLayers.size(); 263 for (size_t i=0 ; i<count ; ++i) { 264 const sp<LayerBase>& layer(drawingLayers[i]); 265 if (layer.get() == static_cast<LayerBase const*>(this)) 266 break; 267 under.orSelf(layer->visibleRegionScreen); 268 } 269 // if not everything below us is covered, we plug the holes! 270 Region holes(clip.subtract(under)); 271 if (!holes.isEmpty()) { 272 clearWithOpenGL(holes, 0, 0, 0, 1); 273 } 274 return; 275 } 276 277 const GLenum target = GL_TEXTURE_EXTERNAL_OES; 278 glBindTexture(target, mTextureName); 279 if (getFiltering() || needsFiltering() || isFixedSize() || isCropped()) { 280 // TODO: we could be more subtle with isFixedSize() 281 glTexParameterx(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 282 glTexParameterx(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 283 } else { 284 glTexParameterx(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 285 glTexParameterx(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 286 } 287 glEnable(target); 288 glMatrixMode(GL_TEXTURE); 289 glLoadMatrixf(mTextureMatrix); 290 glMatrixMode(GL_MODELVIEW); 291 292 drawWithOpenGL(clip); 293 294 glDisable(target); 295} 296 297// As documented in libhardware header, formats in the range 298// 0x100 - 0x1FF are specific to the HAL implementation, and 299// are known to have no alpha channel 300// TODO: move definition for device-specific range into 301// hardware.h, instead of using hard-coded values here. 302#define HARDWARE_IS_DEVICE_FORMAT(f) ((f) >= 0x100 && (f) <= 0x1FF) 303 304bool Layer::getOpacityForFormat(uint32_t format) 305{ 306 if (HARDWARE_IS_DEVICE_FORMAT(format)) { 307 return true; 308 } 309 PixelFormatInfo info; 310 status_t err = getPixelFormatInfo(PixelFormat(format), &info); 311 // in case of error (unknown format), we assume no blending 312 return (err || info.h_alpha <= info.l_alpha); 313} 314 315 316bool Layer::isOpaque() const 317{ 318 // if we don't have a buffer yet, we're translucent regardless of the 319 // layer's opaque flag. 320 if (mActiveBuffer == 0) { 321 return false; 322 } 323 324 // if the layer has the opaque flag, then we're always opaque, 325 // otherwise we use the current buffer's format. 326 return mOpaqueLayer || mCurrentOpacity; 327} 328 329bool Layer::isProtected() const 330{ 331 const sp<GraphicBuffer>& activeBuffer(mActiveBuffer); 332 return (activeBuffer != 0) && 333 (activeBuffer->getUsage() & GRALLOC_USAGE_PROTECTED); 334} 335 336uint32_t Layer::doTransaction(uint32_t flags) 337{ 338 const Layer::State& front(drawingState()); 339 const Layer::State& temp(currentState()); 340 341 const bool sizeChanged = (front.requested_w != temp.requested_w) || 342 (front.requested_h != temp.requested_h); 343 344 if (sizeChanged) { 345 // the size changed, we need to ask our client to request a new buffer 346 LOGD_IF(DEBUG_RESIZE, 347 "doTransaction: " 348 "resize (layer=%p), requested (%dx%d), drawing (%d,%d), " 349 "scalingMode=%d", 350 this, 351 int(temp.requested_w), int(temp.requested_h), 352 int(front.requested_w), int(front.requested_h), 353 mCurrentScalingMode); 354 355 if (!isFixedSize()) { 356 // we're being resized and there is a freeze display request, 357 // acquire a freeze lock, so that the screen stays put 358 // until we've redrawn at the new size; this is to avoid 359 // glitches upon orientation changes. 360 if (mFlinger->hasFreezeRequest()) { 361 // if the surface is hidden, don't try to acquire the 362 // freeze lock, since hidden surfaces may never redraw 363 if (!(front.flags & ISurfaceComposer::eLayerHidden)) { 364 mFreezeLock = mFlinger->getFreezeLock(); 365 } 366 } 367 368 // this will make sure LayerBase::doTransaction doesn't update 369 // the drawing state's size 370 Layer::State& editDraw(mDrawingState); 371 editDraw.requested_w = temp.requested_w; 372 editDraw.requested_h = temp.requested_h; 373 374 // record the new size, form this point on, when the client request 375 // a buffer, it'll get the new size. 376 mSurfaceTexture->setDefaultBufferSize(temp.requested_w, temp.requested_h); 377 } 378 } 379 380 if (temp.sequence != front.sequence) { 381 if (temp.flags & ISurfaceComposer::eLayerHidden || temp.alpha == 0) { 382 // this surface is now hidden, so it shouldn't hold a freeze lock 383 // (it may never redraw, which is fine if it is hidden) 384 mFreezeLock.clear(); 385 } 386 } 387 388 return LayerBase::doTransaction(flags); 389} 390 391bool Layer::isFixedSize() const { 392 return mCurrentScalingMode != NATIVE_WINDOW_SCALING_MODE_FREEZE; 393} 394 395bool Layer::isCropped() const { 396 return !mCurrentCrop.isEmpty(); 397} 398 399// ---------------------------------------------------------------------------- 400// pageflip handling... 401// ---------------------------------------------------------------------------- 402 403void Layer::lockPageFlip(bool& recomputeVisibleRegions) 404{ 405 if (mQueuedFrames > 0) { 406 const bool oldOpacity = isOpaque(); 407 408 // signal another event if we have more frames pending 409 if (android_atomic_dec(&mQueuedFrames) > 1) { 410 mFlinger->signalEvent(); 411 } 412 413 if (mSurfaceTexture->updateTexImage() < NO_ERROR) { 414 // something happened! 415 recomputeVisibleRegions = true; 416 return; 417 } 418 419 mActiveBuffer = mSurfaceTexture->getCurrentBuffer(); 420 mSurfaceTexture->getTransformMatrix(mTextureMatrix); 421 422 const Rect crop(mSurfaceTexture->getCurrentCrop()); 423 const uint32_t transform(mSurfaceTexture->getCurrentTransform()); 424 const uint32_t scalingMode(mSurfaceTexture->getCurrentScalingMode()); 425 if ((crop != mCurrentCrop) || 426 (transform != mCurrentTransform) || 427 (scalingMode != mCurrentScalingMode)) 428 { 429 mCurrentCrop = crop; 430 mCurrentTransform = transform; 431 mCurrentScalingMode = scalingMode; 432 mFlinger->invalidateHwcGeometry(); 433 } 434 435 mCurrentOpacity = getOpacityForFormat(mActiveBuffer->format); 436 if (oldOpacity != isOpaque()) { 437 recomputeVisibleRegions = true; 438 } 439 440 glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 441 glTexParameterx(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 442 443 // update the layer size and release freeze-lock 444 const Layer::State& front(drawingState()); 445 446 // FIXME: mPostedDirtyRegion = dirty & bounds 447 mPostedDirtyRegion.set(front.w, front.h); 448 449 450 if ((front.w != front.requested_w) || 451 (front.h != front.requested_h)) 452 { 453 // check that we received a buffer of the right size 454 // (Take the buffer's orientation into account) 455 sp<GraphicBuffer> newFrontBuffer(mActiveBuffer); 456 uint32_t bufWidth = newFrontBuffer->getWidth(); 457 uint32_t bufHeight = newFrontBuffer->getHeight(); 458 if (mCurrentTransform & Transform::ROT_90) { 459 swap(bufWidth, bufHeight); 460 } 461 462 if (isFixedSize() || 463 (bufWidth == front.requested_w && 464 bufHeight == front.requested_h)) 465 { 466 // Here we pretend the transaction happened by updating the 467 // current and drawing states. Drawing state is only accessed 468 // in this thread, no need to have it locked 469 Layer::State& editDraw(mDrawingState); 470 editDraw.w = editDraw.requested_w; 471 editDraw.h = editDraw.requested_h; 472 473 // We also need to update the current state so that we don't 474 // end-up doing too much work during the next transaction. 475 // NOTE: We actually don't need hold the transaction lock here 476 // because State::w and State::h are only accessed from 477 // this thread 478 Layer::State& editTemp(currentState()); 479 editTemp.w = editDraw.w; 480 editTemp.h = editDraw.h; 481 482 // recompute visible region 483 recomputeVisibleRegions = true; 484 485 // we now have the correct size, unfreeze the screen 486 mFreezeLock.clear(); 487 } 488 489 LOGD_IF(DEBUG_RESIZE, 490 "lockPageFlip : " 491 " (layer=%p), buffer (%ux%u, tr=%02x), " 492 "requested (%dx%d)", 493 this, 494 bufWidth, bufHeight, mCurrentTransform, 495 front.requested_w, front.requested_h); 496 } 497 } 498} 499 500void Layer::unlockPageFlip( 501 const Transform& planeTransform, Region& outDirtyRegion) 502{ 503 Region dirtyRegion(mPostedDirtyRegion); 504 if (!dirtyRegion.isEmpty()) { 505 mPostedDirtyRegion.clear(); 506 // The dirty region is given in the layer's coordinate space 507 // transform the dirty region by the surface's transformation 508 // and the global transformation. 509 const Layer::State& s(drawingState()); 510 const Transform tr(planeTransform * s.transform); 511 dirtyRegion = tr.transform(dirtyRegion); 512 513 // At this point, the dirty region is in screen space. 514 // Make sure it's constrained by the visible region (which 515 // is in screen space as well). 516 dirtyRegion.andSelf(visibleRegionScreen); 517 outDirtyRegion.orSelf(dirtyRegion); 518 } 519 if (visibleRegionScreen.isEmpty()) { 520 // an invisible layer should not hold a freeze-lock 521 // (because it may never be updated and therefore never release it) 522 mFreezeLock.clear(); 523 } 524} 525 526void Layer::dump(String8& result, char* buffer, size_t SIZE) const 527{ 528 LayerBaseClient::dump(result, buffer, SIZE); 529 530 sp<const GraphicBuffer> buf0(mActiveBuffer); 531 uint32_t w0=0, h0=0, s0=0, f0=0; 532 if (buf0 != 0) { 533 w0 = buf0->getWidth(); 534 h0 = buf0->getHeight(); 535 s0 = buf0->getStride(); 536 f0 = buf0->format; 537 } 538 snprintf(buffer, SIZE, 539 " " 540 "format=%2d, activeBuffer=[%4ux%4u:%4u,%3X]," 541 " freezeLock=%p, transform-hint=0x%02x, queued-frames=%d\n", 542 mFormat, w0, h0, s0,f0, 543 getFreezeLock().get(), getTransformHint(), mQueuedFrames); 544 545 result.append(buffer); 546 547 if (mSurfaceTexture != 0) { 548 mSurfaceTexture->dump(result, " ", buffer, SIZE); 549 } 550} 551 552uint32_t Layer::getEffectiveUsage(uint32_t usage) const 553{ 554 // TODO: should we do something special if mSecure is set? 555 if (mProtectedByApp) { 556 // need a hardware-protected path to external video sink 557 usage |= GraphicBuffer::USAGE_PROTECTED; 558 } 559 return usage; 560} 561 562uint32_t Layer::getTransformHint() const { 563 uint32_t orientation = 0; 564 if (!mFlinger->mDebugDisableTransformHint) { 565 orientation = getOrientation(); 566 if (orientation & Transform::ROT_INVALID) { 567 orientation = 0; 568 } 569 } 570 return orientation; 571} 572 573// --------------------------------------------------------------------------- 574 575 576}; // namespace android 577