cbb288bfe8
Rewrote SurfaceFlinger's buffer management from the ground-up. The design now support an arbitrary number of buffers per surface, however the current implementation is limited to four. Currently only 2 buffers are used in practice. The main new feature is to be able to dequeue all buffers at once (very important when there are only two). A client can dequeue all buffers until there are none available, it can lock all buffers except the last one that is used for composition. The client will block then, until a new buffer is enqueued. The current implementation requires that buffers are locked in the same order they are dequeued and enqueued in the same order they are locked. Only one buffer can be locked at a time. eg. Allowed sequence: DQ, DQ, LOCK, Q, LOCK, Q eg. Forbidden sequence: DQ, DQ, LOCK, LOCK, Q, Q
1864 lines
59 KiB
C++
1864 lines
59 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/PixelFormat.h>
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#include <ui/DisplayInfo.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 "Buffer.h"
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#include "BufferAllocator.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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/* 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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void SurfaceFlinger::instantiate() {
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defaultServiceManager()->addService(
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String16("SurfaceFlinger"), new SurfaceFlinger());
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}
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void SurfaceFlinger::shutdown() {
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// we should unregister here, but not really because
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// when (if) the service manager goes away, all the services
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// it has a reference to will leave too.
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}
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// ---------------------------------------------------------------------------
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SurfaceFlinger::LayerVector::LayerVector(const SurfaceFlinger::LayerVector& rhs)
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: lookup(rhs.lookup), layers(rhs.layers)
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{
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}
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ssize_t SurfaceFlinger::LayerVector::indexOf(
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const sp<LayerBase>& key, size_t guess) const
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{
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if (guess<size() && lookup.keyAt(guess) == key)
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return guess;
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const ssize_t i = lookup.indexOfKey(key);
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if (i>=0) {
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const size_t idx = lookup.valueAt(i);
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LOGE_IF(layers[idx]!=key,
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"LayerVector[%p]: layers[%d]=%p, key=%p",
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this, int(idx), layers[idx].get(), key.get());
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return idx;
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}
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return i;
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}
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ssize_t SurfaceFlinger::LayerVector::add(
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const sp<LayerBase>& layer,
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Vector< sp<LayerBase> >::compar_t cmp)
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{
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size_t count = layers.size();
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ssize_t l = 0;
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ssize_t h = count-1;
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ssize_t mid;
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sp<LayerBase> const* a = layers.array();
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while (l <= h) {
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mid = l + (h - l)/2;
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const int c = cmp(a+mid, &layer);
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if (c == 0) { l = mid; break; }
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else if (c<0) { l = mid+1; }
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else { h = mid-1; }
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}
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size_t order = l;
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while (order<count && !cmp(&layer, a+order)) {
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order++;
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}
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count = lookup.size();
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for (size_t i=0 ; i<count ; i++) {
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if (lookup.valueAt(i) >= order) {
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lookup.editValueAt(i)++;
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}
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}
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layers.insertAt(layer, order);
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lookup.add(layer, order);
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return order;
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}
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ssize_t SurfaceFlinger::LayerVector::remove(const sp<LayerBase>& layer)
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{
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const ssize_t keyIndex = lookup.indexOfKey(layer);
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if (keyIndex >= 0) {
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const size_t index = lookup.valueAt(keyIndex);
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LOGE_IF(layers[index]!=layer,
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"LayerVector[%p]: layers[%u]=%p, layer=%p",
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this, int(index), layers[index].get(), layer.get());
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layers.removeItemsAt(index);
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lookup.removeItemsAt(keyIndex);
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const size_t count = lookup.size();
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for (size_t i=0 ; i<count ; i++) {
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if (lookup.valueAt(i) >= size_t(index)) {
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lookup.editValueAt(i)--;
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}
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}
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return index;
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}
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return NAME_NOT_FOUND;
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}
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ssize_t SurfaceFlinger::LayerVector::reorder(
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const sp<LayerBase>& layer,
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Vector< sp<LayerBase> >::compar_t cmp)
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{
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// XXX: it's a little lame. but oh well...
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ssize_t err = remove(layer);
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if (err >=0)
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err = add(layer, cmp);
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return err;
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}
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// ---------------------------------------------------------------------------
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#if 0
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#pragma mark -
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#endif
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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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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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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<ISurfaceFlingerClient> SurfaceFlinger::createConnection()
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{
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Mutex::Autolock _l(mStateLock);
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uint32_t token = mTokens.acquire();
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sp<Client> client = new Client(token, this);
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if (client->ctrlblk == 0) {
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mTokens.release(token);
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return 0;
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}
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status_t err = mClientsMap.add(token, client);
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if (err < 0) {
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mTokens.release(token);
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return 0;
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}
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sp<BClient> bclient =
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new BClient(this, token, client->getControlBlockMemory());
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return bclient;
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}
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void SurfaceFlinger::destroyConnection(ClientID cid)
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{
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Mutex::Autolock _l(mStateLock);
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sp<Client> client = mClientsMap.valueFor(cid);
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if (client != 0) {
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// free all the layers this client owns
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Vector< wp<LayerBaseClient> > layers(client->getLayers());
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const size_t count = layers.size();
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for (size_t i=0 ; i<count ; i++) {
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sp<LayerBaseClient> layer(layers[i].promote());
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if (layer != 0) {
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purgatorizeLayer_l(layer);
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}
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}
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// the resources associated with this client will be freed
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// during the next transaction, after these surfaces have been
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// properly removed from the screen
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// remove this client from our ClientID->Client mapping.
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mClientsMap.removeItem(cid);
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// and add it to the list of disconnected clients
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mDisconnectedClients.add(client);
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// request a transaction
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setTransactionFlags(eTransactionNeeded);
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}
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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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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 = w;
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dcblk->h = h;
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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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asm volatile ("":::"memory");
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// Initialize OpenGL|ES
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, 0);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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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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glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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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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if (UNLIKELY(isFrozen())) {
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// wait 5 seconds
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const nsecs_t freezeDisplayTimeout = ms2ns(5000);
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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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MessageList::value_type msg = mEventQueue.waitMessage(timeout);
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if (msg != 0) {
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mFreezeDisplayTime = 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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} else {
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// we timed out
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if (isFrozen()) {
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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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mFreezeCount = 0;
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mFreezeDisplay = false;
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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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void SurfaceFlinger::signalDelayedEvent(nsecs_t delay)
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{
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mEventQueue.postMessage( new MessageBase(MessageQueue::INVALIDATE), delay);
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}
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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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|
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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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|
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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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|
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// post surfaces (if needed)
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handlePageFlip();
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const DisplayHardware& hw(graphicPlane(0).displayHardware());
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if (LIKELY(hw.canDraw())) {
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// repaint the framebuffer (if needed)
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handleRepaint();
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// release the clients before we flip ('cause flip might block)
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unlockClients();
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postFramebuffer();
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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 (isFrozen()) {
|
|
// we are not allowed to draw, but pause a bit to make sure
|
|
// apps don't end up using the whole CPU, if they depend on
|
|
// surfaceflinger for synchronization.
|
|
usleep(8333); // 8.3ms ~ 120fps
|
|
return;
|
|
}
|
|
|
|
if (!mInvalidRegion.isEmpty()) {
|
|
const DisplayHardware& hw(graphicPlane(0).displayHardware());
|
|
const nsecs_t now = systemTime();
|
|
mDebugInSwapBuffers = now;
|
|
hw.flip(mInvalidRegion);
|
|
mLastSwapBufferTime = systemTime() - now;
|
|
mDebugInSwapBuffers = 0;
|
|
mInvalidRegion.clear();
|
|
}
|
|
}
|
|
|
|
void SurfaceFlinger::handleConsoleEvents()
|
|
{
|
|
// something to do with the console
|
|
const DisplayHardware& hw = graphicPlane(0).displayHardware();
|
|
|
|
int what = android_atomic_and(0, &mConsoleSignals);
|
|
if (what & eConsoleAcquired) {
|
|
hw.acquireScreen();
|
|
}
|
|
|
|
if (mDeferReleaseConsole && hw.canDraw()) {
|
|
// We got the release signal before the acquire signal
|
|
mDeferReleaseConsole = false;
|
|
hw.releaseScreen();
|
|
}
|
|
|
|
if (what & eConsoleReleased) {
|
|
if (hw.canDraw()) {
|
|
hw.releaseScreen();
|
|
} else {
|
|
mDeferReleaseConsole = true;
|
|
}
|
|
}
|
|
|
|
mDirtyRegion.set(hw.bounds());
|
|
}
|
|
|
|
void SurfaceFlinger::handleTransaction(uint32_t transactionFlags)
|
|
{
|
|
Vector< sp<LayerBase> > ditchedLayers;
|
|
|
|
{ // scope for the lock
|
|
Mutex::Autolock _l(mStateLock);
|
|
const nsecs_t now = systemTime();
|
|
mDebugInTransaction = now;
|
|
handleTransactionLocked(transactionFlags, ditchedLayers);
|
|
mLastTransactionTime = systemTime() - now;
|
|
mDebugInTransaction = 0;
|
|
}
|
|
|
|
// do this without lock held
|
|
const size_t count = ditchedLayers.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
if (ditchedLayers[i] != 0) {
|
|
//LOGD("ditching layer %p", ditchedLayers[i].get());
|
|
ditchedLayers[i]->ditch();
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceFlinger::handleTransactionLocked(
|
|
uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers)
|
|
{
|
|
const LayerVector& currentLayers(mCurrentState.layersSortedByZ);
|
|
const size_t count = currentLayers.size();
|
|
|
|
/*
|
|
* Traversal of the children
|
|
* (perform the transaction for each of them if needed)
|
|
*/
|
|
|
|
const bool layersNeedTransaction = transactionFlags & eTraversalNeeded;
|
|
if (layersNeedTransaction) {
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
const sp<LayerBase>& layer = currentLayers[i];
|
|
uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded);
|
|
if (!trFlags) continue;
|
|
|
|
const uint32_t flags = layer->doTransaction(0);
|
|
if (flags & Layer::eVisibleRegion)
|
|
mVisibleRegionsDirty = true;
|
|
|
|
if (flags & Layer::eRestartTransaction) {
|
|
// restart the transaction, but back-off a little
|
|
layer->setTransactionFlags(eTransactionNeeded);
|
|
setTransactionFlags(eTraversalNeeded, ms2ns(8));
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Perform our own transaction if needed
|
|
*/
|
|
|
|
if (transactionFlags & eTransactionNeeded) {
|
|
if (mCurrentState.orientation != mDrawingState.orientation) {
|
|
// the orientation has changed, recompute all visible regions
|
|
// and invalidate everything.
|
|
|
|
const int dpy = 0;
|
|
const int orientation = mCurrentState.orientation;
|
|
const uint32_t type = mCurrentState.orientationType;
|
|
GraphicPlane& plane(graphicPlane(dpy));
|
|
plane.setOrientation(orientation);
|
|
|
|
// update the shared control block
|
|
const DisplayHardware& hw(plane.displayHardware());
|
|
volatile display_cblk_t* dcblk = mServerCblk->displays + dpy;
|
|
dcblk->orientation = orientation;
|
|
if (orientation & eOrientationSwapMask) {
|
|
// 90 or 270 degrees orientation
|
|
dcblk->w = hw.getHeight();
|
|
dcblk->h = hw.getWidth();
|
|
} else {
|
|
dcblk->w = hw.getWidth();
|
|
dcblk->h = hw.getHeight();
|
|
}
|
|
|
|
mVisibleRegionsDirty = true;
|
|
mDirtyRegion.set(hw.bounds());
|
|
mFreezeDisplayTime = 0;
|
|
}
|
|
|
|
if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) {
|
|
// freezing or unfreezing the display -> trigger animation if needed
|
|
mFreezeDisplay = mCurrentState.freezeDisplay;
|
|
}
|
|
|
|
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) {
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
// get rid of all resources we don't need anymore
|
|
// (layers and clients)
|
|
free_resources_l();
|
|
}
|
|
|
|
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());
|
|
|
|
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());
|
|
|
|
// handle hidden surfaces by setting the visible region to empty
|
|
Region opaqueRegion;
|
|
Region visibleRegion;
|
|
Region coveredRegion;
|
|
if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) {
|
|
const bool translucent = layer->needsBlending();
|
|
const Rect bounds(layer->visibleBounds());
|
|
visibleRegion.set(bounds);
|
|
coveredRegion = visibleRegion;
|
|
|
|
// Remove the transparent area from the visible region
|
|
if (translucent) {
|
|
visibleRegion.subtractSelf(layer->transparentRegionScreen);
|
|
}
|
|
|
|
// compute the opaque region
|
|
if (s.alpha==255 && !translucent && layer->getOrientation()>=0) {
|
|
// the opaque region is the visible region
|
|
opaqueRegion = visibleRegion;
|
|
}
|
|
}
|
|
|
|
// subtract the opaque region covered by the layers above us
|
|
visibleRegion.subtractSelf(aboveOpaqueLayers);
|
|
coveredRegion.andSelf(aboveCoveredLayers);
|
|
|
|
// 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:
|
|
* exposed = what's VISIBLE and NOT COVERED now
|
|
* but was COVERED before
|
|
*/
|
|
dirty = (visibleRegion - coveredRegion) & layer->coveredRegionScreen;
|
|
}
|
|
dirty.subtractSelf(aboveOpaqueLayers);
|
|
|
|
// accumulate to the screen dirty region
|
|
dirtyRegion.orSelf(dirty);
|
|
|
|
// Update aboveOpaqueLayers/aboveCoveredLayers for next (lower) layer
|
|
aboveOpaqueLayers.orSelf(opaqueRegion);
|
|
aboveCoveredLayers.orSelf(visibleRegion);
|
|
|
|
// 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);
|
|
mWormholeRegion = screenRegion.subtract(opaqueRegion);
|
|
mVisibleRegionsDirty = false;
|
|
}
|
|
|
|
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::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) {
|
|
// FIXME: 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::UPDATE_ON_DEMAND) {
|
|
// We need to redraw the rectangle that will be updated
|
|
// (pushed to the framebuffer).
|
|
// This is needed because UPDATE_ON_DEMAND 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();
|
|
}
|
|
const SurfaceFlinger& flinger(*this);
|
|
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];
|
|
const Region& visibleRegion(layer->visibleRegionScreen);
|
|
if (!visibleRegion.isEmpty()) {
|
|
const Region clip(dirty.intersect(visibleRegion));
|
|
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::UPDATE_ON_DEMAND) ?
|
|
mDirtyRegion.bounds() : hw.bounds());
|
|
composeSurfaces(repaint);
|
|
}
|
|
|
|
glDisable(GL_TEXTURE_2D);
|
|
glDisable(GL_BLEND);
|
|
glDisable(GL_DITHER);
|
|
glDisable(GL_SCISSOR_TEST);
|
|
|
|
static int toggle = 0;
|
|
toggle = 1 - toggle;
|
|
if (toggle) {
|
|
glColor4x(0x10000, 0, 0x10000, 0x10000);
|
|
} else {
|
|
glColor4x(0x10000, 0x10000, 0, 0x10000);
|
|
}
|
|
|
|
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)) {
|
|
glClearColorx(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);
|
|
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::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::invalidateLayerVisibility(const sp<LayerBase>& layer)
|
|
{
|
|
layer->forceVisibilityTransaction();
|
|
setTransactionFlags(eTraversalNeeded);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer)
|
|
{
|
|
if (layer == 0)
|
|
return BAD_VALUE;
|
|
ssize_t i = mCurrentState.layersSortedByZ.add(
|
|
layer, &LayerBase::compareCurrentStateZ);
|
|
sp<LayerBaseClient> lbc = LayerBase::dynamicCast< LayerBaseClient* >(layer.get());
|
|
if (lbc != 0) {
|
|
mLayerMap.add(lbc->serverIndex(), lbc);
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase)
|
|
{
|
|
ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase);
|
|
if (index >= 0) {
|
|
mLayersRemoved = true;
|
|
sp<LayerBaseClient> layer =
|
|
LayerBase::dynamicCast< LayerBaseClient* >(layerBase.get());
|
|
if (layer != 0) {
|
|
mLayerMap.removeItem(layer->serverIndex());
|
|
}
|
|
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);
|
|
|
|
// 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 BClient::destroySurface(),
|
|
// ~BClient() and ~ISurface().
|
|
return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err;
|
|
}
|
|
|
|
|
|
void SurfaceFlinger::free_resources_l()
|
|
{
|
|
// Destroy layers that were removed
|
|
mLayersRemoved = false;
|
|
|
|
// free resources associated with disconnected clients
|
|
Vector< sp<Client> >& disconnectedClients(mDisconnectedClients);
|
|
const size_t count = disconnectedClients.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
sp<Client> client = disconnectedClients[i];
|
|
mTokens.release(client->cid);
|
|
}
|
|
disconnectedClients.clear();
|
|
}
|
|
|
|
uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags)
|
|
{
|
|
return android_atomic_and(~flags, &mTransactionFlags) & flags;
|
|
}
|
|
|
|
uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags, nsecs_t delay)
|
|
{
|
|
uint32_t old = android_atomic_or(flags, &mTransactionFlags);
|
|
if ((old & flags)==0) { // wake the server up
|
|
if (delay > 0) {
|
|
signalDelayedEvent(delay);
|
|
} else {
|
|
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) {
|
|
mTransactionCV.wait(mStateLock);
|
|
}
|
|
}
|
|
}
|
|
|
|
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(ClientID clientId, int pid,
|
|
ISurfaceFlingerClient::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;
|
|
}
|
|
|
|
Mutex::Autolock _l(mStateLock);
|
|
sp<Client> client = mClientsMap.valueFor(clientId);
|
|
if (UNLIKELY(client == 0)) {
|
|
LOGE("createSurface() failed, client not found (id=%d)", clientId);
|
|
return surfaceHandle;
|
|
}
|
|
|
|
//LOGD("createSurface for pid %d (%d x %d)", pid, w, h);
|
|
int32_t id = client->generateId(pid);
|
|
if (uint32_t(id) >= NUM_LAYERS_MAX) {
|
|
LOGE("createSurface() failed, generateId = %d", id);
|
|
return surfaceHandle;
|
|
}
|
|
|
|
switch (flags & eFXSurfaceMask) {
|
|
case eFXSurfaceNormal:
|
|
if (UNLIKELY(flags & ePushBuffers)) {
|
|
layer = createPushBuffersSurfaceLocked(client, d, id,
|
|
w, h, flags);
|
|
} else {
|
|
layer = createNormalSurfaceLocked(client, d, id,
|
|
w, h, flags, format);
|
|
}
|
|
break;
|
|
case eFXSurfaceBlur:
|
|
layer = createBlurSurfaceLocked(client, d, id, w, h, flags);
|
|
break;
|
|
case eFXSurfaceDim:
|
|
layer = createDimSurfaceLocked(client, d, id, w, h, flags);
|
|
break;
|
|
}
|
|
|
|
if (layer != 0) {
|
|
setTransactionFlags(eTransactionNeeded);
|
|
surfaceHandle = layer->getSurface();
|
|
if (surfaceHandle != 0) {
|
|
params->token = surfaceHandle->getToken();
|
|
params->identity = surfaceHandle->getIdentity();
|
|
params->width = w;
|
|
params->height = h;
|
|
params->format = format;
|
|
}
|
|
}
|
|
|
|
return surfaceHandle;
|
|
}
|
|
|
|
sp<LayerBaseClient> SurfaceFlinger::createNormalSurfaceLocked(
|
|
const sp<Client>& client, DisplayID display,
|
|
int32_t id, 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:
|
|
format = PIXEL_FORMAT_RGB_565;
|
|
break;
|
|
}
|
|
|
|
sp<Layer> layer = new Layer(this, display, client, id);
|
|
status_t err = layer->setBuffers(w, h, format, flags);
|
|
if (LIKELY(err == NO_ERROR)) {
|
|
layer->initStates(w, h, flags);
|
|
addLayer_l(layer);
|
|
} else {
|
|
LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err));
|
|
layer.clear();
|
|
}
|
|
return layer;
|
|
}
|
|
|
|
sp<LayerBaseClient> SurfaceFlinger::createBlurSurfaceLocked(
|
|
const sp<Client>& client, DisplayID display,
|
|
int32_t id, uint32_t w, uint32_t h, uint32_t flags)
|
|
{
|
|
sp<LayerBlur> layer = new LayerBlur(this, display, client, id);
|
|
layer->initStates(w, h, flags);
|
|
addLayer_l(layer);
|
|
return layer;
|
|
}
|
|
|
|
sp<LayerBaseClient> SurfaceFlinger::createDimSurfaceLocked(
|
|
const sp<Client>& client, DisplayID display,
|
|
int32_t id, uint32_t w, uint32_t h, uint32_t flags)
|
|
{
|
|
sp<LayerDim> layer = new LayerDim(this, display, client, id);
|
|
layer->initStates(w, h, flags);
|
|
addLayer_l(layer);
|
|
return layer;
|
|
}
|
|
|
|
sp<LayerBaseClient> SurfaceFlinger::createPushBuffersSurfaceLocked(
|
|
const sp<Client>& client, DisplayID display,
|
|
int32_t id, uint32_t w, uint32_t h, uint32_t flags)
|
|
{
|
|
sp<LayerBuffer> layer = new LayerBuffer(this, display, client, id);
|
|
layer->initStates(w, h, flags);
|
|
addLayer_l(layer);
|
|
return layer;
|
|
}
|
|
|
|
status_t SurfaceFlinger::removeSurface(SurfaceID index)
|
|
{
|
|
/*
|
|
* 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).
|
|
*/
|
|
|
|
Mutex::Autolock _l(mStateLock);
|
|
sp<LayerBaseClient> layer = getLayerUser_l(index);
|
|
status_t 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;
|
|
}
|
|
};
|
|
|
|
mEventQueue.postMessage( new MessageDestroySurface(this, layer) );
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t SurfaceFlinger::setClientState(
|
|
ClientID cid,
|
|
int32_t count,
|
|
const layer_state_t* states)
|
|
{
|
|
Mutex::Autolock _l(mStateLock);
|
|
uint32_t flags = 0;
|
|
cid <<= 16;
|
|
for (int i=0 ; i<count ; i++) {
|
|
const layer_state_t& s = states[i];
|
|
sp<LayerBaseClient> layer(getLayerUser_l(s.surface | cid));
|
|
if (layer != 0) {
|
|
const uint32_t what = s.what;
|
|
if (what & ePositionChanged) {
|
|
if (layer->setPosition(s.x, s.y))
|
|
flags |= eTraversalNeeded;
|
|
}
|
|
if (what & eLayerChanged) {
|
|
if (layer->setLayer(s.z)) {
|
|
mCurrentState.layersSortedByZ.reorder(
|
|
layer, &Layer::compareCurrentStateZ);
|
|
// 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;
|
|
}
|
|
|
|
sp<LayerBaseClient> SurfaceFlinger::getLayerUser_l(SurfaceID s) const
|
|
{
|
|
sp<LayerBaseClient> layer = mLayerMap.valueFor(s);
|
|
return layer;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
size_t s = mClientsMap.size();
|
|
char name[64];
|
|
for (size_t i=0 ; i<s ; i++) {
|
|
sp<Client> client = mClientsMap.valueAt(i);
|
|
sprintf(name, " Client (id=0x%08x)", client->cid);
|
|
client->dump(name);
|
|
}
|
|
const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
|
|
const size_t count = currentLayers.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
/*** LayerBase ***/
|
|
const sp<LayerBase>& layer = currentLayers[i];
|
|
const Layer::State& s = layer->drawingState();
|
|
snprintf(buffer, SIZE,
|
|
"+ %s %p\n"
|
|
" "
|
|
"z=%9d, pos=(%4d,%4d), size=(%4d,%4d), "
|
|
"needsBlending=%1d, invalidate=%1d, "
|
|
"alpha=0x%02x, flags=0x%08x, tr=[%.2f, %.2f][%.2f, %.2f]\n",
|
|
layer->getTypeID(), layer.get(),
|
|
s.z, layer->tx(), layer->ty(), s.w, s.h,
|
|
layer->needsBlending(), layer->contentDirty,
|
|
s.alpha, s.flags,
|
|
s.transform[0], s.transform[1],
|
|
s.transform[2], s.transform[3]);
|
|
result.append(buffer);
|
|
buffer[0] = 0;
|
|
/*** LayerBaseClient ***/
|
|
sp<LayerBaseClient> lbc =
|
|
LayerBase::dynamicCast< LayerBaseClient* >(layer.get());
|
|
if (lbc != 0) {
|
|
sp<Client> client(lbc->client.promote());
|
|
snprintf(buffer, SIZE,
|
|
" "
|
|
"id=0x%08x, client=0x%08x, identity=%u\n",
|
|
lbc->clientIndex(), client.get() ? client->cid : 0,
|
|
lbc->getIdentity());
|
|
|
|
result.append(buffer);
|
|
buffer[0] = 0;
|
|
}
|
|
/*** Layer ***/
|
|
sp<Layer> l = LayerBase::dynamicCast< Layer* >(layer.get());
|
|
if (l != 0) {
|
|
result.append( l->lcblk->dump(" ") );
|
|
sp<const Buffer> buf0(l->getBuffer(0));
|
|
sp<const Buffer> buf1(l->getBuffer(1));
|
|
snprintf(buffer, SIZE,
|
|
" "
|
|
"format=%2d, [%3ux%3u:%3u] [%3ux%3u:%3u],"
|
|
" freezeLock=%p\n",
|
|
l->pixelFormat(),
|
|
buf0->getWidth(), buf0->getHeight(), buf0->getStride(),
|
|
buf1->getWidth(), buf1->getHeight(), buf1->getStride(),
|
|
l->getFreezeLock().get());
|
|
result.append(buffer);
|
|
buffer[0] = 0;
|
|
}
|
|
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);
|
|
}
|
|
snprintf(buffer, SIZE, " client count: %d\n", mClientsMap.size());
|
|
result.append(buffer);
|
|
const BufferAllocator& alloc(BufferAllocator::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
|
|
return NO_ERROR;
|
|
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 1007: // set mFreezeCount
|
|
mFreezeCount = data.readInt32();
|
|
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;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
#if 0
|
|
#pragma mark -
|
|
#endif
|
|
|
|
Client::Client(ClientID clientID, const sp<SurfaceFlinger>& flinger)
|
|
: ctrlblk(0), cid(clientID), mPid(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;
|
|
}
|
|
}
|
|
|
|
Client::~Client() {
|
|
if (ctrlblk) {
|
|
ctrlblk->~SharedClient(); // destroy our shared-structure.
|
|
}
|
|
}
|
|
|
|
int32_t Client::generateId(int pid)
|
|
{
|
|
const uint32_t i = clz( ~mBitmap );
|
|
if (i >= NUM_LAYERS_MAX) {
|
|
return NO_MEMORY;
|
|
}
|
|
mPid = pid;
|
|
mInUse.add(uint8_t(i));
|
|
mBitmap |= 1<<(31-i);
|
|
return i;
|
|
}
|
|
|
|
status_t Client::bindLayer(const sp<LayerBaseClient>& layer, int32_t id)
|
|
{
|
|
ssize_t idx = mInUse.indexOf(id);
|
|
if (idx < 0)
|
|
return NAME_NOT_FOUND;
|
|
return mLayers.insertAt(layer, idx);
|
|
}
|
|
|
|
void Client::free(int32_t id)
|
|
{
|
|
ssize_t idx = mInUse.remove(uint8_t(id));
|
|
if (idx >= 0) {
|
|
mBitmap &= ~(1<<(31-id));
|
|
mLayers.removeItemsAt(idx);
|
|
}
|
|
}
|
|
|
|
bool Client::isValid(int32_t i) const {
|
|
return (uint32_t(i)<NUM_LAYERS_MAX) && (mBitmap & (1<<(31-i)));
|
|
}
|
|
|
|
sp<LayerBaseClient> Client::getLayerUser(int32_t i) const {
|
|
sp<LayerBaseClient> lbc;
|
|
ssize_t idx = mInUse.indexOf(uint8_t(i));
|
|
if (idx >= 0) {
|
|
lbc = mLayers[idx].promote();
|
|
LOGE_IF(lbc==0, "getLayerUser(i=%d), idx=%d is dead", int(i), int(idx));
|
|
}
|
|
return lbc;
|
|
}
|
|
|
|
void Client::dump(const char* what)
|
|
{
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
#if 0
|
|
#pragma mark -
|
|
#endif
|
|
|
|
BClient::BClient(SurfaceFlinger *flinger, ClientID cid, const sp<IMemoryHeap>& cblk)
|
|
: mId(cid), mFlinger(flinger), mCblk(cblk)
|
|
{
|
|
}
|
|
|
|
BClient::~BClient() {
|
|
// destroy all resources attached to this client
|
|
mFlinger->destroyConnection(mId);
|
|
}
|
|
|
|
sp<IMemoryHeap> BClient::getControlBlock() const {
|
|
return mCblk;
|
|
}
|
|
|
|
sp<ISurface> BClient::createSurface(
|
|
ISurfaceFlingerClient::surface_data_t* params, int pid,
|
|
DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
|
|
uint32_t flags)
|
|
{
|
|
return mFlinger->createSurface(mId, pid, params, display, w, h, format, flags);
|
|
}
|
|
|
|
status_t BClient::destroySurface(SurfaceID sid)
|
|
{
|
|
sid |= (mId << 16); // add the client-part to id
|
|
return mFlinger->removeSurface(sid);
|
|
}
|
|
|
|
status_t BClient::setState(int32_t count, const layer_state_t* states)
|
|
{
|
|
return mFlinger->setClientState(mId, count, states);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
GraphicPlane::GraphicPlane()
|
|
: mHw(0)
|
|
{
|
|
}
|
|
|
|
GraphicPlane::~GraphicPlane() {
|
|
delete mHw;
|
|
}
|
|
|
|
bool GraphicPlane::initialized() const {
|
|
return mHw ? true : false;
|
|
}
|
|
|
|
void GraphicPlane::setDisplayHardware(DisplayHardware *hw) {
|
|
mHw = hw;
|
|
}
|
|
|
|
void GraphicPlane::setTransform(const Transform& tr) {
|
|
mTransform = tr;
|
|
mGlobalTransform = mOrientationTransform * mTransform;
|
|
}
|
|
|
|
status_t GraphicPlane::orientationToTransfrom(
|
|
int orientation, int w, int h, Transform* tr)
|
|
{
|
|
float a, b, c, d, x, y;
|
|
switch (orientation) {
|
|
case ISurfaceComposer::eOrientationDefault:
|
|
a=1; b=0; c=0; d=1; x=0; y=0;
|
|
break;
|
|
case ISurfaceComposer::eOrientation90:
|
|
a=0; b=-1; c=1; d=0; x=w; y=0;
|
|
break;
|
|
case ISurfaceComposer::eOrientation180:
|
|
a=-1; b=0; c=0; d=-1; x=w; y=h;
|
|
break;
|
|
case ISurfaceComposer::eOrientation270:
|
|
a=0; b=1; c=-1; d=0; x=0; y=h;
|
|
break;
|
|
default:
|
|
return BAD_VALUE;
|
|
}
|
|
tr->set(a, b, c, d);
|
|
tr->set(x, y);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t GraphicPlane::setOrientation(int orientation)
|
|
{
|
|
const DisplayHardware& hw(displayHardware());
|
|
const float w = hw.getWidth();
|
|
const float h = hw.getHeight();
|
|
|
|
if (orientation == ISurfaceComposer::eOrientationDefault) {
|
|
// make sure the default orientation is optimal
|
|
mOrientationTransform.reset();
|
|
mOrientation = orientation;
|
|
mGlobalTransform = mTransform;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
// If the rotation can be handled in hardware, this is where
|
|
// the magic should happen.
|
|
if (UNLIKELY(orientation == 42)) {
|
|
float a, b, c, d, x, y;
|
|
const float r = (3.14159265f / 180.0f) * 42.0f;
|
|
const float si = sinf(r);
|
|
const float co = cosf(r);
|
|
a=co; b=-si; c=si; d=co;
|
|
x = si*(h*0.5f) + (1-co)*(w*0.5f);
|
|
y =-si*(w*0.5f) + (1-co)*(h*0.5f);
|
|
mOrientationTransform.set(a, b, c, d);
|
|
mOrientationTransform.set(x, y);
|
|
} else {
|
|
GraphicPlane::orientationToTransfrom(orientation, w, h,
|
|
&mOrientationTransform);
|
|
}
|
|
mOrientation = orientation;
|
|
mGlobalTransform = mOrientationTransform * mTransform;
|
|
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
|