1930 lines
60 KiB
C++
1930 lines
60 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <math.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <cutils/log.h>
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#include <cutils/properties.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <binder/MemoryHeapBase.h>
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#include <utils/String8.h>
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#include <utils/String16.h>
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#include <utils/StopWatch.h>
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#include <ui/GraphicBufferAllocator.h>
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#include <ui/GraphicLog.h>
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#include <ui/PixelFormat.h>
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#include <pixelflinger/pixelflinger.h>
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#include <GLES/gl.h>
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#include "clz.h"
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#include "GLExtensions.h"
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#include "Layer.h"
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#include "LayerBlur.h"
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#include "LayerBuffer.h"
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#include "LayerDim.h"
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#include "SurfaceFlinger.h"
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#include "DisplayHardware/DisplayHardware.h"
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#include "DisplayHardware/HWComposer.h"
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/* ideally AID_GRAPHICS would be in a semi-public header
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* or there would be a way to map a user/group name to its id
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*/
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#ifndef AID_GRAPHICS
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#define AID_GRAPHICS 1003
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#endif
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#define DISPLAY_COUNT 1
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namespace android {
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// ---------------------------------------------------------------------------
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SurfaceFlinger::SurfaceFlinger()
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: BnSurfaceComposer(), Thread(false),
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mTransactionFlags(0),
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mTransactionCount(0),
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mResizeTransationPending(false),
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mLayersRemoved(false),
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mBootTime(systemTime()),
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mHardwareTest("android.permission.HARDWARE_TEST"),
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mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"),
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mDump("android.permission.DUMP"),
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mVisibleRegionsDirty(false),
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mHwWorkListDirty(false),
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mDeferReleaseConsole(false),
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mFreezeDisplay(false),
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mFreezeCount(0),
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mFreezeDisplayTime(0),
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mDebugRegion(0),
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mDebugBackground(0),
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mDebugInSwapBuffers(0),
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mLastSwapBufferTime(0),
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mDebugInTransaction(0),
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mLastTransactionTime(0),
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mBootFinished(false),
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mConsoleSignals(0),
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mSecureFrameBuffer(0)
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{
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init();
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}
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void SurfaceFlinger::init()
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{
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LOGI("SurfaceFlinger is starting");
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// debugging stuff...
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char value[PROPERTY_VALUE_MAX];
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property_get("debug.sf.showupdates", value, "0");
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mDebugRegion = atoi(value);
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property_get("debug.sf.showbackground", value, "0");
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mDebugBackground = atoi(value);
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LOGI_IF(mDebugRegion, "showupdates enabled");
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LOGI_IF(mDebugBackground, "showbackground enabled");
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}
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SurfaceFlinger::~SurfaceFlinger()
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{
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glDeleteTextures(1, &mWormholeTexName);
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}
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overlay_control_device_t* SurfaceFlinger::getOverlayEngine() const
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{
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return graphicPlane(0).displayHardware().getOverlayEngine();
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}
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sp<IMemoryHeap> SurfaceFlinger::getCblk() const
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{
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return mServerHeap;
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}
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sp<ISurfaceComposerClient> SurfaceFlinger::createConnection()
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{
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sp<ISurfaceComposerClient> bclient;
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sp<Client> client(new Client(this));
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status_t err = client->initCheck();
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if (err == NO_ERROR) {
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bclient = client;
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}
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return bclient;
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}
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sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection()
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{
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sp<ISurfaceComposerClient> bclient;
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sp<UserClient> client(new UserClient(this));
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status_t err = client->initCheck();
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if (err == NO_ERROR) {
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bclient = client;
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}
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return bclient;
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}
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const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const
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{
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LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy);
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const GraphicPlane& plane(mGraphicPlanes[dpy]);
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return plane;
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}
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GraphicPlane& SurfaceFlinger::graphicPlane(int dpy)
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{
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return const_cast<GraphicPlane&>(
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const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy));
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}
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void SurfaceFlinger::bootFinished()
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{
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const nsecs_t now = systemTime();
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const nsecs_t duration = now - mBootTime;
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LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) );
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mBootFinished = true;
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property_set("ctl.stop", "bootanim");
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}
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void SurfaceFlinger::onFirstRef()
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{
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run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY);
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// Wait for the main thread to be done with its initialization
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mReadyToRunBarrier.wait();
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}
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static inline uint16_t pack565(int r, int g, int b) {
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return (r<<11)|(g<<5)|b;
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}
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status_t SurfaceFlinger::readyToRun()
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{
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LOGI( "SurfaceFlinger's main thread ready to run. "
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"Initializing graphics H/W...");
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// we only support one display currently
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int dpy = 0;
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{
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// initialize the main display
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GraphicPlane& plane(graphicPlane(dpy));
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DisplayHardware* const hw = new DisplayHardware(this, dpy);
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plane.setDisplayHardware(hw);
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}
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// create the shared control-block
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mServerHeap = new MemoryHeapBase(4096,
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MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap");
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LOGE_IF(mServerHeap==0, "can't create shared memory dealer");
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mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase());
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LOGE_IF(mServerCblk==0, "can't get to shared control block's address");
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new(mServerCblk) surface_flinger_cblk_t;
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// initialize primary screen
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// (other display should be initialized in the same manner, but
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// asynchronously, as they could come and go. None of this is supported
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// yet).
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const GraphicPlane& plane(graphicPlane(dpy));
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const DisplayHardware& hw = plane.displayHardware();
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const uint32_t w = hw.getWidth();
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const uint32_t h = hw.getHeight();
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const uint32_t f = hw.getFormat();
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hw.makeCurrent();
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// initialize the shared control block
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mServerCblk->connected |= 1<<dpy;
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display_cblk_t* dcblk = mServerCblk->displays + dpy;
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memset(dcblk, 0, sizeof(display_cblk_t));
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dcblk->w = plane.getWidth();
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dcblk->h = plane.getHeight();
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dcblk->format = f;
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dcblk->orientation = ISurfaceComposer::eOrientationDefault;
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dcblk->xdpi = hw.getDpiX();
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dcblk->ydpi = hw.getDpiY();
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dcblk->fps = hw.getRefreshRate();
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dcblk->density = hw.getDensity();
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// Initialize OpenGL|ES
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
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glPixelStorei(GL_PACK_ALIGNMENT, 4);
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glEnableClientState(GL_VERTEX_ARRAY);
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glEnable(GL_SCISSOR_TEST);
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glShadeModel(GL_FLAT);
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glDisable(GL_DITHER);
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glDisable(GL_CULL_FACE);
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const uint16_t g0 = pack565(0x0F,0x1F,0x0F);
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const uint16_t g1 = pack565(0x17,0x2f,0x17);
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const uint16_t textureData[4] = { g0, g1, g1, g0 };
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glGenTextures(1, &mWormholeTexName);
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glBindTexture(GL_TEXTURE_2D, mWormholeTexName);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0,
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GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData);
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glViewport(0, 0, w, h);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrthof(0, w, h, 0, 0, 1);
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LayerDim::initDimmer(this, w, h);
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mReadyToRunBarrier.open();
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/*
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* We're now ready to accept clients...
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*/
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// start boot animation
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property_set("ctl.start", "bootanim");
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return NO_ERROR;
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}
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// ----------------------------------------------------------------------------
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#if 0
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#pragma mark -
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#pragma mark Events Handler
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#endif
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void SurfaceFlinger::waitForEvent()
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{
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while (true) {
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nsecs_t timeout = -1;
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const nsecs_t freezeDisplayTimeout = ms2ns(5000);
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if (UNLIKELY(isFrozen())) {
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// wait 5 seconds
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const nsecs_t now = systemTime();
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if (mFreezeDisplayTime == 0) {
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mFreezeDisplayTime = now;
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}
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nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime);
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timeout = waitTime>0 ? waitTime : 0;
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}
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sp<MessageBase> msg = mEventQueue.waitMessage(timeout);
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// see if we timed out
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if (isFrozen()) {
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const nsecs_t now = systemTime();
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nsecs_t frozenTime = (now - mFreezeDisplayTime);
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if (frozenTime >= freezeDisplayTimeout) {
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// we timed out and are still frozen
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LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d",
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mFreezeDisplay, mFreezeCount);
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mFreezeDisplayTime = 0;
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mFreezeCount = 0;
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mFreezeDisplay = false;
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}
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}
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if (msg != 0) {
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switch (msg->what) {
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case MessageQueue::INVALIDATE:
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// invalidate message, just return to the main loop
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return;
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}
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}
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}
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}
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void SurfaceFlinger::signalEvent() {
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mEventQueue.invalidate();
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}
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void SurfaceFlinger::signal() const {
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// this is the IPC call
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const_cast<SurfaceFlinger*>(this)->signalEvent();
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}
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status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg,
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nsecs_t reltime, uint32_t flags)
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{
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return mEventQueue.postMessage(msg, reltime, flags);
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}
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status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg,
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nsecs_t reltime, uint32_t flags)
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{
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status_t res = mEventQueue.postMessage(msg, reltime, flags);
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if (res == NO_ERROR) {
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msg->wait();
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}
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return res;
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}
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// ----------------------------------------------------------------------------
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#if 0
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#pragma mark -
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#pragma mark Main loop
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#endif
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bool SurfaceFlinger::threadLoop()
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{
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waitForEvent();
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// check for transactions
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if (UNLIKELY(mConsoleSignals)) {
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handleConsoleEvents();
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}
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if (LIKELY(mTransactionCount == 0)) {
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// if we're in a global transaction, don't do anything.
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const uint32_t mask = eTransactionNeeded | eTraversalNeeded;
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uint32_t transactionFlags = getTransactionFlags(mask);
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if (LIKELY(transactionFlags)) {
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handleTransaction(transactionFlags);
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}
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}
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// post surfaces (if needed)
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handlePageFlip();
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if (UNLIKELY(mHwWorkListDirty)) {
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// build the h/w work list
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handleWorkList();
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}
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const DisplayHardware& hw(graphicPlane(0).displayHardware());
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if (LIKELY(hw.canDraw() && !isFrozen())) {
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// repaint the framebuffer (if needed)
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const int index = hw.getCurrentBufferIndex();
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GraphicLog& logger(GraphicLog::getInstance());
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logger.log(GraphicLog::SF_REPAINT, index);
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handleRepaint();
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// inform the h/w that we're done compositing
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logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index);
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hw.compositionComplete();
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logger.log(GraphicLog::SF_SWAP_BUFFERS, index);
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postFramebuffer();
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logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index);
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unlockClients();
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logger.log(GraphicLog::SF_REPAINT_DONE, index);
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} else {
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// pretend we did the post
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unlockClients();
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usleep(16667); // 60 fps period
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}
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return true;
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}
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void SurfaceFlinger::postFramebuffer()
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{
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if (!mInvalidRegion.isEmpty()) {
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const DisplayHardware& hw(graphicPlane(0).displayHardware());
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const nsecs_t now = systemTime();
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mDebugInSwapBuffers = now;
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hw.flip(mInvalidRegion);
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mLastSwapBufferTime = systemTime() - now;
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mDebugInSwapBuffers = 0;
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mInvalidRegion.clear();
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}
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}
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void SurfaceFlinger::handleConsoleEvents()
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{
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// something to do with the console
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const DisplayHardware& hw = graphicPlane(0).displayHardware();
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int what = android_atomic_and(0, &mConsoleSignals);
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if (what & eConsoleAcquired) {
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hw.acquireScreen();
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}
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if (mDeferReleaseConsole && hw.canDraw()) {
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// We got the release signal before the acquire signal
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mDeferReleaseConsole = false;
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hw.releaseScreen();
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}
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if (what & eConsoleReleased) {
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if (hw.canDraw()) {
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hw.releaseScreen();
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} else {
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mDeferReleaseConsole = true;
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}
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}
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mDirtyRegion.set(hw.bounds());
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}
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void SurfaceFlinger::handleTransaction(uint32_t transactionFlags)
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{
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Vector< sp<LayerBase> > ditchedLayers;
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/*
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* Perform and commit the transaction
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*/
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{ // scope for the lock
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Mutex::Autolock _l(mStateLock);
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const nsecs_t now = systemTime();
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mDebugInTransaction = now;
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handleTransactionLocked(transactionFlags, ditchedLayers);
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mLastTransactionTime = systemTime() - now;
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mDebugInTransaction = 0;
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mHwWorkListDirty = true;
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// here the transaction has been committed
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}
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/*
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* Clean-up all layers that went away
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* (do this without the lock held)
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*/
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const size_t count = ditchedLayers.size();
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for (size_t i=0 ; i<count ; i++) {
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if (ditchedLayers[i] != 0) {
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//LOGD("ditching layer %p", ditchedLayers[i].get());
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ditchedLayers[i]->ditch();
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}
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}
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}
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void SurfaceFlinger::handleTransactionLocked(
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uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers)
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{
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const LayerVector& currentLayers(mCurrentState.layersSortedByZ);
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const size_t count = currentLayers.size();
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/*
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* Traversal of the children
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* (perform the transaction for each of them if needed)
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*/
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const bool layersNeedTransaction = transactionFlags & eTraversalNeeded;
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if (layersNeedTransaction) {
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for (size_t i=0 ; i<count ; i++) {
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const sp<LayerBase>& layer = currentLayers[i];
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uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded);
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if (!trFlags) continue;
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const uint32_t flags = layer->doTransaction(0);
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if (flags & Layer::eVisibleRegion)
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mVisibleRegionsDirty = true;
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}
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}
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/*
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* Perform our own transaction if needed
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*/
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if (transactionFlags & eTransactionNeeded) {
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if (mCurrentState.orientation != mDrawingState.orientation) {
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// the orientation has changed, recompute all visible regions
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// and invalidate everything.
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const int dpy = 0;
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const int orientation = mCurrentState.orientation;
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const uint32_t type = mCurrentState.orientationType;
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GraphicPlane& plane(graphicPlane(dpy));
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plane.setOrientation(orientation);
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// update the shared control block
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const DisplayHardware& hw(plane.displayHardware());
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volatile display_cblk_t* dcblk = mServerCblk->displays + dpy;
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dcblk->orientation = orientation;
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dcblk->w = plane.getWidth();
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dcblk->h = plane.getHeight();
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mVisibleRegionsDirty = true;
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mDirtyRegion.set(hw.bounds());
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}
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if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) {
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// freezing or unfreezing the display -> trigger animation if needed
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mFreezeDisplay = mCurrentState.freezeDisplay;
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if (mFreezeDisplay)
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mFreezeDisplayTime = 0;
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|
}
|
|
|
|
if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) {
|
|
// layers have been added
|
|
mVisibleRegionsDirty = true;
|
|
}
|
|
|
|
// some layers might have been removed, so
|
|
// we need to update the regions they're exposing.
|
|
if (mLayersRemoved) {
|
|
mLayersRemoved = false;
|
|
mVisibleRegionsDirty = true;
|
|
const LayerVector& previousLayers(mDrawingState.layersSortedByZ);
|
|
const size_t count = previousLayers.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
const sp<LayerBase>& layer(previousLayers[i]);
|
|
if (currentLayers.indexOf( layer ) < 0) {
|
|
// this layer is not visible anymore
|
|
ditchedLayers.add(layer);
|
|
mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
commitTransaction();
|
|
}
|
|
|
|
sp<FreezeLock> SurfaceFlinger::getFreezeLock() const
|
|
{
|
|
return new FreezeLock(const_cast<SurfaceFlinger *>(this));
|
|
}
|
|
|
|
void SurfaceFlinger::computeVisibleRegions(
|
|
LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion)
|
|
{
|
|
const GraphicPlane& plane(graphicPlane(0));
|
|
const Transform& planeTransform(plane.transform());
|
|
const DisplayHardware& hw(plane.displayHardware());
|
|
const Region screenRegion(hw.bounds());
|
|
|
|
Region aboveOpaqueLayers;
|
|
Region aboveCoveredLayers;
|
|
Region dirty;
|
|
|
|
bool secureFrameBuffer = false;
|
|
|
|
size_t i = currentLayers.size();
|
|
while (i--) {
|
|
const sp<LayerBase>& layer = currentLayers[i];
|
|
layer->validateVisibility(planeTransform);
|
|
|
|
// start with the whole surface at its current location
|
|
const Layer::State& s(layer->drawingState());
|
|
|
|
/*
|
|
* opaqueRegion: area of a surface that is fully opaque.
|
|
*/
|
|
Region opaqueRegion;
|
|
|
|
/*
|
|
* visibleRegion: area of a surface that is visible on screen
|
|
* and not fully transparent. This is essentially the layer's
|
|
* footprint minus the opaque regions above it.
|
|
* Areas covered by a translucent surface are considered visible.
|
|
*/
|
|
Region visibleRegion;
|
|
|
|
/*
|
|
* coveredRegion: area of a surface that is covered by all
|
|
* visible regions above it (which includes the translucent areas).
|
|
*/
|
|
Region coveredRegion;
|
|
|
|
|
|
// handle hidden surfaces by setting the visible region to empty
|
|
if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) {
|
|
const bool translucent = layer->needsBlending();
|
|
const Rect bounds(layer->visibleBounds());
|
|
visibleRegion.set(bounds);
|
|
visibleRegion.andSelf(screenRegion);
|
|
if (!visibleRegion.isEmpty()) {
|
|
// Remove the transparent area from the visible region
|
|
if (translucent) {
|
|
visibleRegion.subtractSelf(layer->transparentRegionScreen);
|
|
}
|
|
|
|
// compute the opaque region
|
|
const int32_t layerOrientation = layer->getOrientation();
|
|
if (s.alpha==255 && !translucent &&
|
|
((layerOrientation & Transform::ROT_INVALID) == false)) {
|
|
// the opaque region is the layer's footprint
|
|
opaqueRegion = visibleRegion;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Clip the covered region to the visible region
|
|
coveredRegion = aboveCoveredLayers.intersect(visibleRegion);
|
|
|
|
// Update aboveCoveredLayers for next (lower) layer
|
|
aboveCoveredLayers.orSelf(visibleRegion);
|
|
|
|
// subtract the opaque region covered by the layers above us
|
|
visibleRegion.subtractSelf(aboveOpaqueLayers);
|
|
|
|
// compute this layer's dirty region
|
|
if (layer->contentDirty) {
|
|
// we need to invalidate the whole region
|
|
dirty = visibleRegion;
|
|
// as well, as the old visible region
|
|
dirty.orSelf(layer->visibleRegionScreen);
|
|
layer->contentDirty = false;
|
|
} else {
|
|
/* compute the exposed region:
|
|
* the exposed region consists of two components:
|
|
* 1) what's VISIBLE now and was COVERED before
|
|
* 2) what's EXPOSED now less what was EXPOSED before
|
|
*
|
|
* note that (1) is conservative, we start with the whole
|
|
* visible region but only keep what used to be covered by
|
|
* something -- which mean it may have been exposed.
|
|
*
|
|
* (2) handles areas that were not covered by anything but got
|
|
* exposed because of a resize.
|
|
*/
|
|
const Region newExposed = visibleRegion - coveredRegion;
|
|
const Region oldVisibleRegion = layer->visibleRegionScreen;
|
|
const Region oldCoveredRegion = layer->coveredRegionScreen;
|
|
const Region oldExposed = oldVisibleRegion - oldCoveredRegion;
|
|
dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed);
|
|
}
|
|
dirty.subtractSelf(aboveOpaqueLayers);
|
|
|
|
// accumulate to the screen dirty region
|
|
dirtyRegion.orSelf(dirty);
|
|
|
|
// Update aboveOpaqueLayers for next (lower) layer
|
|
aboveOpaqueLayers.orSelf(opaqueRegion);
|
|
|
|
// Store the visible region is screen space
|
|
layer->setVisibleRegion(visibleRegion);
|
|
layer->setCoveredRegion(coveredRegion);
|
|
|
|
// If a secure layer is partially visible, lock-down the screen!
|
|
if (layer->isSecure() && !visibleRegion.isEmpty()) {
|
|
secureFrameBuffer = true;
|
|
}
|
|
}
|
|
|
|
// invalidate the areas where a layer was removed
|
|
dirtyRegion.orSelf(mDirtyRegionRemovedLayer);
|
|
mDirtyRegionRemovedLayer.clear();
|
|
|
|
mSecureFrameBuffer = secureFrameBuffer;
|
|
opaqueRegion = aboveOpaqueLayers;
|
|
}
|
|
|
|
|
|
void SurfaceFlinger::commitTransaction()
|
|
{
|
|
mDrawingState = mCurrentState;
|
|
mResizeTransationPending = false;
|
|
mTransactionCV.broadcast();
|
|
}
|
|
|
|
void SurfaceFlinger::handlePageFlip()
|
|
{
|
|
bool visibleRegions = mVisibleRegionsDirty;
|
|
LayerVector& currentLayers(
|
|
const_cast<LayerVector&>(mDrawingState.layersSortedByZ));
|
|
visibleRegions |= lockPageFlip(currentLayers);
|
|
|
|
const DisplayHardware& hw = graphicPlane(0).displayHardware();
|
|
const Region screenRegion(hw.bounds());
|
|
if (visibleRegions) {
|
|
Region opaqueRegion;
|
|
computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion);
|
|
|
|
/*
|
|
* rebuild the visible layer list
|
|
*/
|
|
mVisibleLayersSortedByZ.clear();
|
|
const LayerVector& currentLayers(mDrawingState.layersSortedByZ);
|
|
size_t count = currentLayers.size();
|
|
mVisibleLayersSortedByZ.setCapacity(count);
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
if (!currentLayers[i]->visibleRegionScreen.isEmpty())
|
|
mVisibleLayersSortedByZ.add(currentLayers[i]);
|
|
}
|
|
|
|
mWormholeRegion = screenRegion.subtract(opaqueRegion);
|
|
mVisibleRegionsDirty = false;
|
|
mHwWorkListDirty = true;
|
|
}
|
|
|
|
unlockPageFlip(currentLayers);
|
|
mDirtyRegion.andSelf(screenRegion);
|
|
}
|
|
|
|
bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers)
|
|
{
|
|
bool recomputeVisibleRegions = false;
|
|
size_t count = currentLayers.size();
|
|
sp<LayerBase> const* layers = currentLayers.array();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
const sp<LayerBase>& layer(layers[i]);
|
|
layer->lockPageFlip(recomputeVisibleRegions);
|
|
}
|
|
return recomputeVisibleRegions;
|
|
}
|
|
|
|
void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers)
|
|
{
|
|
const GraphicPlane& plane(graphicPlane(0));
|
|
const Transform& planeTransform(plane.transform());
|
|
size_t count = currentLayers.size();
|
|
sp<LayerBase> const* layers = currentLayers.array();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
const sp<LayerBase>& layer(layers[i]);
|
|
layer->unlockPageFlip(planeTransform, mDirtyRegion);
|
|
}
|
|
}
|
|
|
|
void SurfaceFlinger::handleWorkList()
|
|
{
|
|
mHwWorkListDirty = false;
|
|
HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer());
|
|
if (hwc.initCheck() == NO_ERROR) {
|
|
const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ);
|
|
const size_t count = currentLayers.size();
|
|
hwc.createWorkList(count);
|
|
hwc_layer_t* const cur(hwc.getLayers());
|
|
for (size_t i=0 ; cur && i<count ; i++) {
|
|
currentLayers[i]->setGeometry(&cur[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceFlinger::handleRepaint()
|
|
{
|
|
// compute the invalid region
|
|
mInvalidRegion.orSelf(mDirtyRegion);
|
|
if (mInvalidRegion.isEmpty()) {
|
|
// nothing to do
|
|
return;
|
|
}
|
|
|
|
if (UNLIKELY(mDebugRegion)) {
|
|
debugFlashRegions();
|
|
}
|
|
|
|
// set the frame buffer
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
uint32_t flags = hw.getFlags();
|
|
if ((flags & DisplayHardware::SWAP_RECTANGLE) ||
|
|
(flags & DisplayHardware::BUFFER_PRESERVED))
|
|
{
|
|
// we can redraw only what's dirty, but since SWAP_RECTANGLE only
|
|
// takes a rectangle, we must make sure to update that whole
|
|
// rectangle in that case
|
|
if (flags & DisplayHardware::SWAP_RECTANGLE) {
|
|
// TODO: we really should be able to pass a region to
|
|
// SWAP_RECTANGLE so that we don't have to redraw all this.
|
|
mDirtyRegion.set(mInvalidRegion.bounds());
|
|
} else {
|
|
// in the BUFFER_PRESERVED case, obviously, we can update only
|
|
// what's needed and nothing more.
|
|
// NOTE: this is NOT a common case, as preserving the backbuffer
|
|
// is costly and usually involves copying the whole update back.
|
|
}
|
|
} else {
|
|
if (flags & DisplayHardware::PARTIAL_UPDATES) {
|
|
// We need to redraw the rectangle that will be updated
|
|
// (pushed to the framebuffer).
|
|
// This is needed because PARTIAL_UPDATES only takes one
|
|
// rectangle instead of a region (see DisplayHardware::flip())
|
|
mDirtyRegion.set(mInvalidRegion.bounds());
|
|
} else {
|
|
// we need to redraw everything (the whole screen)
|
|
mDirtyRegion.set(hw.bounds());
|
|
mInvalidRegion = mDirtyRegion;
|
|
}
|
|
}
|
|
|
|
// compose all surfaces
|
|
composeSurfaces(mDirtyRegion);
|
|
|
|
// clear the dirty regions
|
|
mDirtyRegion.clear();
|
|
}
|
|
|
|
void SurfaceFlinger::composeSurfaces(const Region& dirty)
|
|
{
|
|
if (UNLIKELY(!mWormholeRegion.isEmpty())) {
|
|
// should never happen unless the window manager has a bug
|
|
// draw something...
|
|
drawWormhole();
|
|
}
|
|
|
|
status_t err = NO_ERROR;
|
|
const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ);
|
|
size_t count = layers.size();
|
|
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
HWComposer& hwc(hw.getHwComposer());
|
|
hwc_layer_t* const cur(hwc.getLayers());
|
|
|
|
LOGE_IF(cur && hwc.getNumLayers() != count,
|
|
"HAL number of layers (%d) doesn't match surfaceflinger (%d)",
|
|
hwc.getNumLayers(), count);
|
|
|
|
// just to be extra-safe, use the smallest count
|
|
if (hwc.initCheck() == NO_ERROR) {
|
|
count = count < hwc.getNumLayers() ? count : hwc.getNumLayers();
|
|
}
|
|
|
|
/*
|
|
* update the per-frame h/w composer data for each layer
|
|
* and build the transparent region of the FB
|
|
*/
|
|
Region transparent;
|
|
if (cur) {
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
const sp<LayerBase>& layer(layers[i]);
|
|
layer->setPerFrameData(&cur[i]);
|
|
if (cur[i].hints & HWC_HINT_CLEAR_FB) {
|
|
if (!(layer->needsBlending())) {
|
|
transparent.orSelf(layer->visibleRegionScreen);
|
|
}
|
|
}
|
|
}
|
|
err = hwc.prepare();
|
|
LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err));
|
|
}
|
|
|
|
/*
|
|
* clear the area of the FB that need to be transparent
|
|
*/
|
|
transparent.andSelf(dirty);
|
|
if (!transparent.isEmpty()) {
|
|
glClearColor(0,0,0,0);
|
|
Region::const_iterator it = transparent.begin();
|
|
Region::const_iterator const end = transparent.end();
|
|
const int32_t height = hw.getHeight();
|
|
while (it != end) {
|
|
const Rect& r(*it++);
|
|
const GLint sy = height - (r.top + r.height());
|
|
glScissor(r.left, sy, r.width(), r.height());
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* and then, render the layers targeted at the framebuffer
|
|
*/
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
if (cur) {
|
|
if ((cur[i].compositionType != HWC_FRAMEBUFFER) &&
|
|
!(cur[i].flags & HWC_SKIP_LAYER)) {
|
|
// skip layers handled by the HAL
|
|
continue;
|
|
}
|
|
}
|
|
const sp<LayerBase>& layer(layers[i]);
|
|
const Region clip(dirty.intersect(layer->visibleRegionScreen));
|
|
if (!clip.isEmpty()) {
|
|
layer->draw(clip);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceFlinger::unlockClients()
|
|
{
|
|
const LayerVector& drawingLayers(mDrawingState.layersSortedByZ);
|
|
const size_t count = drawingLayers.size();
|
|
sp<LayerBase> const* const layers = drawingLayers.array();
|
|
for (size_t i=0 ; i<count ; ++i) {
|
|
const sp<LayerBase>& layer = layers[i];
|
|
layer->finishPageFlip();
|
|
}
|
|
}
|
|
|
|
void SurfaceFlinger::debugFlashRegions()
|
|
{
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
const uint32_t flags = hw.getFlags();
|
|
|
|
if (!((flags & DisplayHardware::SWAP_RECTANGLE) ||
|
|
(flags & DisplayHardware::BUFFER_PRESERVED))) {
|
|
const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ?
|
|
mDirtyRegion.bounds() : hw.bounds());
|
|
composeSurfaces(repaint);
|
|
}
|
|
|
|
TextureManager::deactivateTextures();
|
|
|
|
glDisable(GL_BLEND);
|
|
glDisable(GL_DITHER);
|
|
glDisable(GL_SCISSOR_TEST);
|
|
|
|
static int toggle = 0;
|
|
toggle = 1 - toggle;
|
|
if (toggle) {
|
|
glColor4f(1, 0, 1, 1);
|
|
} else {
|
|
glColor4f(1, 1, 0, 1);
|
|
}
|
|
|
|
Region::const_iterator it = mDirtyRegion.begin();
|
|
Region::const_iterator const end = mDirtyRegion.end();
|
|
while (it != end) {
|
|
const Rect& r = *it++;
|
|
GLfloat vertices[][2] = {
|
|
{ r.left, r.top },
|
|
{ r.left, r.bottom },
|
|
{ r.right, r.bottom },
|
|
{ r.right, r.top }
|
|
};
|
|
glVertexPointer(2, GL_FLOAT, 0, vertices);
|
|
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
|
|
}
|
|
|
|
if (mInvalidRegion.isEmpty()) {
|
|
mDirtyRegion.dump("mDirtyRegion");
|
|
mInvalidRegion.dump("mInvalidRegion");
|
|
}
|
|
hw.flip(mInvalidRegion);
|
|
|
|
if (mDebugRegion > 1)
|
|
usleep(mDebugRegion * 1000);
|
|
|
|
glEnable(GL_SCISSOR_TEST);
|
|
//mDirtyRegion.dump("mDirtyRegion");
|
|
}
|
|
|
|
void SurfaceFlinger::drawWormhole() const
|
|
{
|
|
const Region region(mWormholeRegion.intersect(mDirtyRegion));
|
|
if (region.isEmpty())
|
|
return;
|
|
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
const int32_t width = hw.getWidth();
|
|
const int32_t height = hw.getHeight();
|
|
|
|
glDisable(GL_BLEND);
|
|
glDisable(GL_DITHER);
|
|
|
|
if (LIKELY(!mDebugBackground)) {
|
|
glClearColor(0,0,0,0);
|
|
Region::const_iterator it = region.begin();
|
|
Region::const_iterator const end = region.end();
|
|
while (it != end) {
|
|
const Rect& r = *it++;
|
|
const GLint sy = height - (r.top + r.height());
|
|
glScissor(r.left, sy, r.width(), r.height());
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
}
|
|
} else {
|
|
const GLshort vertices[][2] = { { 0, 0 }, { width, 0 },
|
|
{ width, height }, { 0, height } };
|
|
const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } };
|
|
glVertexPointer(2, GL_SHORT, 0, vertices);
|
|
glTexCoordPointer(2, GL_SHORT, 0, tcoords);
|
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
#if defined(GL_OES_texture_external)
|
|
if (GLExtensions::getInstance().haveTextureExternal()) {
|
|
glDisable(GL_TEXTURE_EXTERNAL_OES);
|
|
}
|
|
#endif
|
|
glEnable(GL_TEXTURE_2D);
|
|
glBindTexture(GL_TEXTURE_2D, mWormholeTexName);
|
|
glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
glMatrixMode(GL_TEXTURE);
|
|
glLoadIdentity();
|
|
glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1);
|
|
Region::const_iterator it = region.begin();
|
|
Region::const_iterator const end = region.end();
|
|
while (it != end) {
|
|
const Rect& r = *it++;
|
|
const GLint sy = height - (r.top + r.height());
|
|
glScissor(r.left, sy, r.width(), r.height());
|
|
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
|
|
}
|
|
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
}
|
|
}
|
|
|
|
void SurfaceFlinger::debugShowFPS() const
|
|
{
|
|
static int mFrameCount;
|
|
static int mLastFrameCount = 0;
|
|
static nsecs_t mLastFpsTime = 0;
|
|
static float mFps = 0;
|
|
mFrameCount++;
|
|
nsecs_t now = systemTime();
|
|
nsecs_t diff = now - mLastFpsTime;
|
|
if (diff > ms2ns(250)) {
|
|
mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff;
|
|
mLastFpsTime = now;
|
|
mLastFrameCount = mFrameCount;
|
|
}
|
|
// XXX: mFPS has the value we want
|
|
}
|
|
|
|
status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer)
|
|
{
|
|
Mutex::Autolock _l(mStateLock);
|
|
addLayer_l(layer);
|
|
setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer)
|
|
{
|
|
ssize_t i = mCurrentState.layersSortedByZ.add(layer);
|
|
return (i < 0) ? status_t(i) : status_t(NO_ERROR);
|
|
}
|
|
|
|
ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client,
|
|
const sp<LayerBaseClient>& lbc)
|
|
{
|
|
Mutex::Autolock _l(mStateLock);
|
|
|
|
// attach this layer to the client
|
|
ssize_t name = client->attachLayer(lbc);
|
|
|
|
// add this layer to the current state list
|
|
addLayer_l(lbc);
|
|
|
|
return name;
|
|
}
|
|
|
|
status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer)
|
|
{
|
|
Mutex::Autolock _l(mStateLock);
|
|
status_t err = purgatorizeLayer_l(layer);
|
|
if (err == NO_ERROR)
|
|
setTransactionFlags(eTransactionNeeded);
|
|
return err;
|
|
}
|
|
|
|
status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase)
|
|
{
|
|
sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient());
|
|
if (lbc != 0) {
|
|
mLayerMap.removeItem( lbc->getSurface()->asBinder() );
|
|
}
|
|
ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase);
|
|
if (index >= 0) {
|
|
mLayersRemoved = true;
|
|
return NO_ERROR;
|
|
}
|
|
return status_t(index);
|
|
}
|
|
|
|
status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase)
|
|
{
|
|
// remove the layer from the main list (through a transaction).
|
|
ssize_t err = removeLayer_l(layerBase);
|
|
|
|
layerBase->onRemoved();
|
|
|
|
// it's possible that we don't find a layer, because it might
|
|
// have been destroyed already -- this is not technically an error
|
|
// from the user because there is a race between Client::destroySurface(),
|
|
// ~Client() and ~ISurface().
|
|
return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err;
|
|
}
|
|
|
|
status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer)
|
|
{
|
|
layer->forceVisibilityTransaction();
|
|
setTransactionFlags(eTraversalNeeded);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags)
|
|
{
|
|
return android_atomic_and(~flags, &mTransactionFlags) & flags;
|
|
}
|
|
|
|
uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags)
|
|
{
|
|
uint32_t old = android_atomic_or(flags, &mTransactionFlags);
|
|
if ((old & flags)==0) { // wake the server up
|
|
signalEvent();
|
|
}
|
|
return old;
|
|
}
|
|
|
|
void SurfaceFlinger::openGlobalTransaction()
|
|
{
|
|
android_atomic_inc(&mTransactionCount);
|
|
}
|
|
|
|
void SurfaceFlinger::closeGlobalTransaction()
|
|
{
|
|
if (android_atomic_dec(&mTransactionCount) == 1) {
|
|
signalEvent();
|
|
|
|
// if there is a transaction with a resize, wait for it to
|
|
// take effect before returning.
|
|
Mutex::Autolock _l(mStateLock);
|
|
while (mResizeTransationPending) {
|
|
status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5));
|
|
if (CC_UNLIKELY(err != NO_ERROR)) {
|
|
// just in case something goes wrong in SF, return to the
|
|
// called after a few seconds.
|
|
LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!");
|
|
mResizeTransationPending = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags)
|
|
{
|
|
if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
|
|
return BAD_VALUE;
|
|
|
|
Mutex::Autolock _l(mStateLock);
|
|
mCurrentState.freezeDisplay = 1;
|
|
setTransactionFlags(eTransactionNeeded);
|
|
|
|
// flags is intended to communicate some sort of animation behavior
|
|
// (for instance fading)
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags)
|
|
{
|
|
if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
|
|
return BAD_VALUE;
|
|
|
|
Mutex::Autolock _l(mStateLock);
|
|
mCurrentState.freezeDisplay = 0;
|
|
setTransactionFlags(eTransactionNeeded);
|
|
|
|
// flags is intended to communicate some sort of animation behavior
|
|
// (for instance fading)
|
|
return NO_ERROR;
|
|
}
|
|
|
|
int SurfaceFlinger::setOrientation(DisplayID dpy,
|
|
int orientation, uint32_t flags)
|
|
{
|
|
if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
|
|
return BAD_VALUE;
|
|
|
|
Mutex::Autolock _l(mStateLock);
|
|
if (mCurrentState.orientation != orientation) {
|
|
if (uint32_t(orientation)<=eOrientation270 || orientation==42) {
|
|
mCurrentState.orientationType = flags;
|
|
mCurrentState.orientation = orientation;
|
|
setTransactionFlags(eTransactionNeeded);
|
|
mTransactionCV.wait(mStateLock);
|
|
} else {
|
|
orientation = BAD_VALUE;
|
|
}
|
|
}
|
|
return orientation;
|
|
}
|
|
|
|
sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid,
|
|
const String8& name, ISurfaceComposerClient::surface_data_t* params,
|
|
DisplayID d, uint32_t w, uint32_t h, PixelFormat format,
|
|
uint32_t flags)
|
|
{
|
|
sp<LayerBaseClient> layer;
|
|
sp<LayerBaseClient::Surface> surfaceHandle;
|
|
|
|
if (int32_t(w|h) < 0) {
|
|
LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)",
|
|
int(w), int(h));
|
|
return surfaceHandle;
|
|
}
|
|
|
|
//LOGD("createSurface for pid %d (%d x %d)", pid, w, h);
|
|
sp<Layer> normalLayer;
|
|
switch (flags & eFXSurfaceMask) {
|
|
case eFXSurfaceNormal:
|
|
#if HAS_PUSH_BUFFERS
|
|
if (UNLIKELY(flags & ePushBuffers)) {
|
|
layer = createPushBuffersSurface(client, d, w, h, flags);
|
|
} else
|
|
#endif
|
|
{
|
|
normalLayer = createNormalSurface(client, d, w, h, flags, format);
|
|
layer = normalLayer;
|
|
}
|
|
break;
|
|
case eFXSurfaceBlur:
|
|
layer = createBlurSurface(client, d, w, h, flags);
|
|
break;
|
|
case eFXSurfaceDim:
|
|
layer = createDimSurface(client, d, w, h, flags);
|
|
break;
|
|
}
|
|
|
|
if (layer != 0) {
|
|
layer->initStates(w, h, flags);
|
|
layer->setName(name);
|
|
ssize_t token = addClientLayer(client, layer);
|
|
|
|
surfaceHandle = layer->getSurface();
|
|
if (surfaceHandle != 0) {
|
|
params->token = token;
|
|
params->identity = surfaceHandle->getIdentity();
|
|
params->width = w;
|
|
params->height = h;
|
|
params->format = format;
|
|
if (normalLayer != 0) {
|
|
Mutex::Autolock _l(mStateLock);
|
|
mLayerMap.add(surfaceHandle->asBinder(), normalLayer);
|
|
}
|
|
}
|
|
|
|
setTransactionFlags(eTransactionNeeded);
|
|
}
|
|
|
|
return surfaceHandle;
|
|
}
|
|
|
|
sp<Layer> SurfaceFlinger::createNormalSurface(
|
|
const sp<Client>& client, DisplayID display,
|
|
uint32_t w, uint32_t h, uint32_t flags,
|
|
PixelFormat& format)
|
|
{
|
|
// initialize the surfaces
|
|
switch (format) { // TODO: take h/w into account
|
|
case PIXEL_FORMAT_TRANSPARENT:
|
|
case PIXEL_FORMAT_TRANSLUCENT:
|
|
format = PIXEL_FORMAT_RGBA_8888;
|
|
break;
|
|
case PIXEL_FORMAT_OPAQUE:
|
|
#ifdef NO_RGBX_8888
|
|
format = PIXEL_FORMAT_RGB_565;
|
|
#else
|
|
format = PIXEL_FORMAT_RGBX_8888;
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
#ifdef NO_RGBX_8888
|
|
if (format == PIXEL_FORMAT_RGBX_8888)
|
|
format = PIXEL_FORMAT_RGBA_8888;
|
|
#endif
|
|
|
|
sp<Layer> layer = new Layer(this, display, client);
|
|
status_t err = layer->setBuffers(w, h, format, flags);
|
|
if (LIKELY(err != NO_ERROR)) {
|
|
LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err));
|
|
layer.clear();
|
|
}
|
|
return layer;
|
|
}
|
|
|
|
sp<LayerBlur> SurfaceFlinger::createBlurSurface(
|
|
const sp<Client>& client, DisplayID display,
|
|
uint32_t w, uint32_t h, uint32_t flags)
|
|
{
|
|
sp<LayerBlur> layer = new LayerBlur(this, display, client);
|
|
layer->initStates(w, h, flags);
|
|
return layer;
|
|
}
|
|
|
|
sp<LayerDim> SurfaceFlinger::createDimSurface(
|
|
const sp<Client>& client, DisplayID display,
|
|
uint32_t w, uint32_t h, uint32_t flags)
|
|
{
|
|
sp<LayerDim> layer = new LayerDim(this, display, client);
|
|
layer->initStates(w, h, flags);
|
|
return layer;
|
|
}
|
|
|
|
sp<LayerBuffer> SurfaceFlinger::createPushBuffersSurface(
|
|
const sp<Client>& client, DisplayID display,
|
|
uint32_t w, uint32_t h, uint32_t flags)
|
|
{
|
|
sp<LayerBuffer> layer = new LayerBuffer(this, display, client);
|
|
layer->initStates(w, h, flags);
|
|
return layer;
|
|
}
|
|
|
|
status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid)
|
|
{
|
|
/*
|
|
* called by the window manager, when a surface should be marked for
|
|
* destruction.
|
|
*
|
|
* The surface is removed from the current and drawing lists, but placed
|
|
* in the purgatory queue, so it's not destroyed right-away (we need
|
|
* to wait for all client's references to go away first).
|
|
*/
|
|
|
|
status_t err = NAME_NOT_FOUND;
|
|
Mutex::Autolock _l(mStateLock);
|
|
sp<LayerBaseClient> layer = client->getLayerUser(sid);
|
|
if (layer != 0) {
|
|
err = purgatorizeLayer_l(layer);
|
|
if (err == NO_ERROR) {
|
|
setTransactionFlags(eTransactionNeeded);
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer)
|
|
{
|
|
// called by ~ISurface() when all references are gone
|
|
|
|
class MessageDestroySurface : public MessageBase {
|
|
SurfaceFlinger* flinger;
|
|
sp<LayerBaseClient> layer;
|
|
public:
|
|
MessageDestroySurface(
|
|
SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer)
|
|
: flinger(flinger), layer(layer) { }
|
|
virtual bool handler() {
|
|
sp<LayerBaseClient> l(layer);
|
|
layer.clear(); // clear it outside of the lock;
|
|
Mutex::Autolock _l(flinger->mStateLock);
|
|
/*
|
|
* remove the layer from the current list -- chances are that it's
|
|
* not in the list anyway, because it should have been removed
|
|
* already upon request of the client (eg: window manager).
|
|
* However, a buggy client could have not done that.
|
|
* Since we know we don't have any more clients, we don't need
|
|
* to use the purgatory.
|
|
*/
|
|
status_t err = flinger->removeLayer_l(l);
|
|
LOGE_IF(err<0 && err != NAME_NOT_FOUND,
|
|
"error removing layer=%p (%s)", l.get(), strerror(-err));
|
|
return true;
|
|
}
|
|
};
|
|
|
|
postMessageAsync( new MessageDestroySurface(this, layer) );
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceFlinger::setClientState(
|
|
const sp<Client>& client,
|
|
int32_t count,
|
|
const layer_state_t* states)
|
|
{
|
|
Mutex::Autolock _l(mStateLock);
|
|
uint32_t flags = 0;
|
|
for (int i=0 ; i<count ; i++) {
|
|
const layer_state_t& s(states[i]);
|
|
sp<LayerBaseClient> layer(client->getLayerUser(s.surface));
|
|
if (layer != 0) {
|
|
const uint32_t what = s.what;
|
|
if (what & ePositionChanged) {
|
|
if (layer->setPosition(s.x, s.y))
|
|
flags |= eTraversalNeeded;
|
|
}
|
|
if (what & eLayerChanged) {
|
|
ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
|
|
if (layer->setLayer(s.z)) {
|
|
mCurrentState.layersSortedByZ.removeAt(idx);
|
|
mCurrentState.layersSortedByZ.add(layer);
|
|
// we need traversal (state changed)
|
|
// AND transaction (list changed)
|
|
flags |= eTransactionNeeded|eTraversalNeeded;
|
|
}
|
|
}
|
|
if (what & eSizeChanged) {
|
|
if (layer->setSize(s.w, s.h)) {
|
|
flags |= eTraversalNeeded;
|
|
mResizeTransationPending = true;
|
|
}
|
|
}
|
|
if (what & eAlphaChanged) {
|
|
if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f)))
|
|
flags |= eTraversalNeeded;
|
|
}
|
|
if (what & eMatrixChanged) {
|
|
if (layer->setMatrix(s.matrix))
|
|
flags |= eTraversalNeeded;
|
|
}
|
|
if (what & eTransparentRegionChanged) {
|
|
if (layer->setTransparentRegionHint(s.transparentRegion))
|
|
flags |= eTraversalNeeded;
|
|
}
|
|
if (what & eVisibilityChanged) {
|
|
if (layer->setFlags(s.flags, s.mask))
|
|
flags |= eTraversalNeeded;
|
|
}
|
|
}
|
|
}
|
|
if (flags) {
|
|
setTransactionFlags(flags);
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void SurfaceFlinger::screenReleased(int dpy)
|
|
{
|
|
// this may be called by a signal handler, we can't do too much in here
|
|
android_atomic_or(eConsoleReleased, &mConsoleSignals);
|
|
signalEvent();
|
|
}
|
|
|
|
void SurfaceFlinger::screenAcquired(int dpy)
|
|
{
|
|
// this may be called by a signal handler, we can't do too much in here
|
|
android_atomic_or(eConsoleAcquired, &mConsoleSignals);
|
|
signalEvent();
|
|
}
|
|
|
|
status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args)
|
|
{
|
|
const size_t SIZE = 1024;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
if (!mDump.checkCalling()) {
|
|
snprintf(buffer, SIZE, "Permission Denial: "
|
|
"can't dump SurfaceFlinger from pid=%d, uid=%d\n",
|
|
IPCThreadState::self()->getCallingPid(),
|
|
IPCThreadState::self()->getCallingUid());
|
|
result.append(buffer);
|
|
} else {
|
|
|
|
// figure out if we're stuck somewhere
|
|
const nsecs_t now = systemTime();
|
|
const nsecs_t inSwapBuffers(mDebugInSwapBuffers);
|
|
const nsecs_t inTransaction(mDebugInTransaction);
|
|
nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0;
|
|
nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0;
|
|
|
|
// Try to get the main lock, but don't insist if we can't
|
|
// (this would indicate SF is stuck, but we want to be able to
|
|
// print something in dumpsys).
|
|
int retry = 3;
|
|
while (mStateLock.tryLock()<0 && --retry>=0) {
|
|
usleep(1000000);
|
|
}
|
|
const bool locked(retry >= 0);
|
|
if (!locked) {
|
|
snprintf(buffer, SIZE,
|
|
"SurfaceFlinger appears to be unresponsive, "
|
|
"dumping anyways (no locks held)\n");
|
|
result.append(buffer);
|
|
}
|
|
|
|
const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
|
|
const size_t count = currentLayers.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
const sp<LayerBase>& layer(currentLayers[i]);
|
|
layer->dump(result, buffer, SIZE);
|
|
const Layer::State& s(layer->drawingState());
|
|
s.transparentRegion.dump(result, "transparentRegion");
|
|
layer->transparentRegionScreen.dump(result, "transparentRegionScreen");
|
|
layer->visibleRegionScreen.dump(result, "visibleRegionScreen");
|
|
}
|
|
|
|
mWormholeRegion.dump(result, "WormholeRegion");
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
snprintf(buffer, SIZE,
|
|
" display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n",
|
|
mFreezeDisplay?"yes":"no", mFreezeCount,
|
|
mCurrentState.orientation, hw.canDraw());
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE,
|
|
" last eglSwapBuffers() time: %f us\n"
|
|
" last transaction time : %f us\n",
|
|
mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0);
|
|
result.append(buffer);
|
|
|
|
if (inSwapBuffersDuration || !locked) {
|
|
snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n",
|
|
inSwapBuffersDuration/1000.0);
|
|
result.append(buffer);
|
|
}
|
|
|
|
if (inTransactionDuration || !locked) {
|
|
snprintf(buffer, SIZE, " transaction time: %f us\n",
|
|
inTransactionDuration/1000.0);
|
|
result.append(buffer);
|
|
}
|
|
|
|
const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get());
|
|
alloc.dump(result);
|
|
|
|
if (locked) {
|
|
mStateLock.unlock();
|
|
}
|
|
}
|
|
write(fd, result.string(), result.size());
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceFlinger::onTransact(
|
|
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
switch (code) {
|
|
case CREATE_CONNECTION:
|
|
case OPEN_GLOBAL_TRANSACTION:
|
|
case CLOSE_GLOBAL_TRANSACTION:
|
|
case SET_ORIENTATION:
|
|
case FREEZE_DISPLAY:
|
|
case UNFREEZE_DISPLAY:
|
|
case BOOT_FINISHED:
|
|
{
|
|
// codes that require permission check
|
|
IPCThreadState* ipc = IPCThreadState::self();
|
|
const int pid = ipc->getCallingPid();
|
|
const int uid = ipc->getCallingUid();
|
|
if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) {
|
|
LOGE("Permission Denial: "
|
|
"can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
|
|
return PERMISSION_DENIED;
|
|
}
|
|
}
|
|
}
|
|
status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags);
|
|
if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) {
|
|
CHECK_INTERFACE(ISurfaceComposer, data, reply);
|
|
if (UNLIKELY(!mHardwareTest.checkCalling())) {
|
|
IPCThreadState* ipc = IPCThreadState::self();
|
|
const int pid = ipc->getCallingPid();
|
|
const int uid = ipc->getCallingUid();
|
|
LOGE("Permission Denial: "
|
|
"can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
|
|
return PERMISSION_DENIED;
|
|
}
|
|
int n;
|
|
switch (code) {
|
|
case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE
|
|
case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE
|
|
return NO_ERROR;
|
|
case 1002: // SHOW_UPDATES
|
|
n = data.readInt32();
|
|
mDebugRegion = n ? n : (mDebugRegion ? 0 : 1);
|
|
return NO_ERROR;
|
|
case 1003: // SHOW_BACKGROUND
|
|
n = data.readInt32();
|
|
mDebugBackground = n ? 1 : 0;
|
|
return NO_ERROR;
|
|
case 1004:{ // repaint everything
|
|
Mutex::Autolock _l(mStateLock);
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe
|
|
signalEvent();
|
|
return NO_ERROR;
|
|
}
|
|
case 1005:{ // force transaction
|
|
setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
|
|
return NO_ERROR;
|
|
}
|
|
case 1006:{ // enable/disable GraphicLog
|
|
int enabled = data.readInt32();
|
|
GraphicLog::getInstance().setEnabled(enabled);
|
|
return NO_ERROR;
|
|
}
|
|
case 1007: // set mFreezeCount
|
|
mFreezeCount = data.readInt32();
|
|
mFreezeDisplayTime = 0;
|
|
return NO_ERROR;
|
|
case 1010: // interrogate.
|
|
reply->writeInt32(0);
|
|
reply->writeInt32(0);
|
|
reply->writeInt32(mDebugRegion);
|
|
reply->writeInt32(mDebugBackground);
|
|
return NO_ERROR;
|
|
case 1013: {
|
|
Mutex::Autolock _l(mStateLock);
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
reply->writeInt32(hw.getPageFlipCount());
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const
|
|
{
|
|
sp<Layer> result;
|
|
Mutex::Autolock _l(mStateLock);
|
|
result = mLayerMap.valueFor( sur->asBinder() ).promote();
|
|
return result;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
Client::Client(const sp<SurfaceFlinger>& flinger)
|
|
: mFlinger(flinger), mNameGenerator(1)
|
|
{
|
|
}
|
|
|
|
Client::~Client()
|
|
{
|
|
const size_t count = mLayers.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
sp<LayerBaseClient> layer(mLayers.valueAt(i).promote());
|
|
if (layer != 0) {
|
|
mFlinger->removeLayer(layer);
|
|
}
|
|
}
|
|
}
|
|
|
|
status_t Client::initCheck() const {
|
|
return NO_ERROR;
|
|
}
|
|
|
|
ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer)
|
|
{
|
|
int32_t name = android_atomic_inc(&mNameGenerator);
|
|
mLayers.add(name, layer);
|
|
return name;
|
|
}
|
|
|
|
void Client::detachLayer(const LayerBaseClient* layer)
|
|
{
|
|
// we do a linear search here, because this doesn't happen often
|
|
const size_t count = mLayers.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
if (mLayers.valueAt(i) == layer) {
|
|
mLayers.removeItemsAt(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
sp<LayerBaseClient> Client::getLayerUser(int32_t i) const {
|
|
sp<LayerBaseClient> lbc;
|
|
const wp<LayerBaseClient>& layer(mLayers.valueFor(i));
|
|
if (layer != 0) {
|
|
lbc = layer.promote();
|
|
LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i));
|
|
}
|
|
return lbc;
|
|
}
|
|
|
|
sp<IMemoryHeap> Client::getControlBlock() const {
|
|
return 0;
|
|
}
|
|
ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const {
|
|
return -1;
|
|
}
|
|
sp<ISurface> Client::createSurface(
|
|
ISurfaceComposerClient::surface_data_t* params, int pid,
|
|
const String8& name,
|
|
DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
|
|
uint32_t flags)
|
|
{
|
|
return mFlinger->createSurface(this, pid, name, params,
|
|
display, w, h, format, flags);
|
|
}
|
|
status_t Client::destroySurface(SurfaceID sid) {
|
|
return mFlinger->removeSurface(this, sid);
|
|
}
|
|
status_t Client::setState(int32_t count, const layer_state_t* states) {
|
|
return mFlinger->setClientState(this, count, states);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
UserClient::UserClient(const sp<SurfaceFlinger>& flinger)
|
|
: ctrlblk(0), mBitmap(0), mFlinger(flinger)
|
|
{
|
|
const int pgsize = getpagesize();
|
|
const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1));
|
|
|
|
mCblkHeap = new MemoryHeapBase(cblksize, 0,
|
|
"SurfaceFlinger Client control-block");
|
|
|
|
ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase());
|
|
if (ctrlblk) { // construct the shared structure in-place.
|
|
new(ctrlblk) SharedClient;
|
|
}
|
|
}
|
|
|
|
UserClient::~UserClient()
|
|
{
|
|
if (ctrlblk) {
|
|
ctrlblk->~SharedClient(); // destroy our shared-structure.
|
|
}
|
|
|
|
/*
|
|
* When a UserClient dies, it's unclear what to do exactly.
|
|
* We could go ahead and destroy all surfaces linked to that client
|
|
* however, it wouldn't be fair to the main Client
|
|
* (usually the the window-manager), which might want to re-target
|
|
* the layer to another UserClient.
|
|
* I think the best is to do nothing, or not much; in most cases the
|
|
* WM itself will go ahead and clean things up when it detects a client of
|
|
* his has died.
|
|
* The remaining question is what to display? currently we keep
|
|
* just keep the current buffer.
|
|
*/
|
|
}
|
|
|
|
status_t UserClient::initCheck() const {
|
|
return ctrlblk == 0 ? NO_INIT : NO_ERROR;
|
|
}
|
|
|
|
void UserClient::detachLayer(const Layer* layer)
|
|
{
|
|
int32_t name = layer->getToken();
|
|
if (name >= 0) {
|
|
int32_t mask = 1LU<<name;
|
|
if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) {
|
|
LOGW("token %d wasn't marked as used %08x", name, int(mBitmap));
|
|
}
|
|
}
|
|
}
|
|
|
|
sp<IMemoryHeap> UserClient::getControlBlock() const {
|
|
return mCblkHeap;
|
|
}
|
|
|
|
ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const
|
|
{
|
|
int32_t name = NAME_NOT_FOUND;
|
|
sp<Layer> layer(mFlinger->getLayer(sur));
|
|
if (layer == 0) {
|
|
return name;
|
|
}
|
|
|
|
// if this layer already has a token, just return it
|
|
name = layer->getToken();
|
|
if ((name >= 0) && (layer->getClient() == this)) {
|
|
return name;
|
|
}
|
|
|
|
name = 0;
|
|
do {
|
|
int32_t mask = 1LU<<name;
|
|
if ((android_atomic_or(mask, &mBitmap) & mask) == 0) {
|
|
// we found and locked that name
|
|
status_t err = layer->setToken(
|
|
const_cast<UserClient*>(this), ctrlblk, name);
|
|
if (err != NO_ERROR) {
|
|
// free the name
|
|
android_atomic_and(~mask, &mBitmap);
|
|
name = err;
|
|
}
|
|
break;
|
|
}
|
|
if (++name > 31)
|
|
name = NO_MEMORY;
|
|
} while(name >= 0);
|
|
|
|
//LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)",
|
|
// sur->asBinder().get(), name, this, mBitmap);
|
|
return name;
|
|
}
|
|
|
|
sp<ISurface> UserClient::createSurface(
|
|
ISurfaceComposerClient::surface_data_t* params, int pid,
|
|
const String8& name,
|
|
DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
|
|
uint32_t flags) {
|
|
return 0;
|
|
}
|
|
status_t UserClient::destroySurface(SurfaceID sid) {
|
|
return INVALID_OPERATION;
|
|
}
|
|
status_t UserClient::setState(int32_t count, const layer_state_t* states) {
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
GraphicPlane::GraphicPlane()
|
|
: mHw(0)
|
|
{
|
|
}
|
|
|
|
GraphicPlane::~GraphicPlane() {
|
|
delete mHw;
|
|
}
|
|
|
|
bool GraphicPlane::initialized() const {
|
|
return mHw ? true : false;
|
|
}
|
|
|
|
int GraphicPlane::getWidth() const {
|
|
return mWidth;
|
|
}
|
|
|
|
int GraphicPlane::getHeight() const {
|
|
return mHeight;
|
|
}
|
|
|
|
void GraphicPlane::setDisplayHardware(DisplayHardware *hw)
|
|
{
|
|
mHw = hw;
|
|
|
|
// initialize the display orientation transform.
|
|
// it's a constant that should come from the display driver.
|
|
int displayOrientation = ISurfaceComposer::eOrientationDefault;
|
|
char property[PROPERTY_VALUE_MAX];
|
|
if (property_get("ro.sf.hwrotation", property, NULL) > 0) {
|
|
//displayOrientation
|
|
switch (atoi(property)) {
|
|
case 90:
|
|
displayOrientation = ISurfaceComposer::eOrientation90;
|
|
break;
|
|
case 270:
|
|
displayOrientation = ISurfaceComposer::eOrientation270;
|
|
break;
|
|
}
|
|
}
|
|
|
|
const float w = hw->getWidth();
|
|
const float h = hw->getHeight();
|
|
GraphicPlane::orientationToTransfrom(displayOrientation, w, h,
|
|
&mDisplayTransform);
|
|
if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) {
|
|
mDisplayWidth = h;
|
|
mDisplayHeight = w;
|
|
} else {
|
|
mDisplayWidth = w;
|
|
mDisplayHeight = h;
|
|
}
|
|
|
|
setOrientation(ISurfaceComposer::eOrientationDefault);
|
|
}
|
|
|
|
status_t GraphicPlane::orientationToTransfrom(
|
|
int orientation, int w, int h, Transform* tr)
|
|
{
|
|
uint32_t flags = 0;
|
|
switch (orientation) {
|
|
case ISurfaceComposer::eOrientationDefault:
|
|
flags = Transform::ROT_0;
|
|
break;
|
|
case ISurfaceComposer::eOrientation90:
|
|
flags = Transform::ROT_90;
|
|
break;
|
|
case ISurfaceComposer::eOrientation180:
|
|
flags = Transform::ROT_180;
|
|
break;
|
|
case ISurfaceComposer::eOrientation270:
|
|
flags = Transform::ROT_270;
|
|
break;
|
|
default:
|
|
return BAD_VALUE;
|
|
}
|
|
tr->set(flags, w, h);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t GraphicPlane::setOrientation(int orientation)
|
|
{
|
|
// If the rotation can be handled in hardware, this is where
|
|
// the magic should happen.
|
|
|
|
const DisplayHardware& hw(displayHardware());
|
|
const float w = mDisplayWidth;
|
|
const float h = mDisplayHeight;
|
|
mWidth = int(w);
|
|
mHeight = int(h);
|
|
|
|
Transform orientationTransform;
|
|
GraphicPlane::orientationToTransfrom(orientation, w, h,
|
|
&orientationTransform);
|
|
if (orientation & ISurfaceComposer::eOrientationSwapMask) {
|
|
mWidth = int(h);
|
|
mHeight = int(w);
|
|
}
|
|
|
|
mOrientation = orientation;
|
|
mGlobalTransform = mDisplayTransform * orientationTransform;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
const DisplayHardware& GraphicPlane::displayHardware() const {
|
|
return *mHw;
|
|
}
|
|
|
|
const Transform& GraphicPlane::transform() const {
|
|
return mGlobalTransform;
|
|
}
|
|
|
|
EGLDisplay GraphicPlane::getEGLDisplay() const {
|
|
return mHw->getEGLDisplay();
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|