774 lines
24 KiB
C++
774 lines
24 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 <stdint.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <utils/Log.h>
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#include <utils/IPCThreadState.h>
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#include <utils/IServiceManager.h>
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#include <GLES/gl.h>
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#include <GLES/glext.h>
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#include <hardware/hardware.h>
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#include "clz.h"
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#include "LayerBase.h"
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#include "LayerBlur.h"
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#include "SurfaceFlinger.h"
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#include "DisplayHardware/DisplayHardware.h"
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// We don't honor the premultiplied alpha flags, which means that
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// premultiplied surface may be composed using a non-premultiplied
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// equation. We do this because it may be a lot faster on some hardware
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// The correct value is HONOR_PREMULTIPLIED_ALPHA = 1
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#define HONOR_PREMULTIPLIED_ALPHA 0
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namespace android {
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// ---------------------------------------------------------------------------
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const uint32_t LayerBase::typeInfo = 1;
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const char* const LayerBase::typeID = "LayerBase";
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const uint32_t LayerBaseClient::typeInfo = LayerBase::typeInfo | 2;
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const char* const LayerBaseClient::typeID = "LayerBaseClient";
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// ---------------------------------------------------------------------------
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Vector<GLuint> LayerBase::deletedTextures;
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int32_t LayerBase::sIdentity = 0;
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LayerBase::LayerBase(SurfaceFlinger* flinger, DisplayID display)
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: dpy(display), contentDirty(false),
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mFlinger(flinger),
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mTransformed(false),
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mOrientation(0),
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mTransactionFlags(0),
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mPremultipliedAlpha(true),
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mIdentity(uint32_t(android_atomic_inc(&sIdentity))),
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mInvalidate(0)
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{
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const DisplayHardware& hw(flinger->graphicPlane(0).displayHardware());
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mFlags = hw.getFlags();
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}
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LayerBase::~LayerBase()
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{
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}
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const GraphicPlane& LayerBase::graphicPlane(int dpy) const
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{
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return mFlinger->graphicPlane(dpy);
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}
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GraphicPlane& LayerBase::graphicPlane(int dpy)
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{
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return mFlinger->graphicPlane(dpy);
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}
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void LayerBase::initStates(uint32_t w, uint32_t h, uint32_t flags)
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{
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uint32_t layerFlags = 0;
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if (flags & ISurfaceComposer::eHidden)
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layerFlags = ISurfaceComposer::eLayerHidden;
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if (flags & ISurfaceComposer::eNonPremultiplied)
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mPremultipliedAlpha = false;
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mCurrentState.z = 0;
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mCurrentState.w = w;
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mCurrentState.h = h;
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mCurrentState.alpha = 0xFF;
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mCurrentState.flags = layerFlags;
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mCurrentState.sequence = 0;
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mCurrentState.transform.set(0, 0);
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// drawing state & current state are identical
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mDrawingState = mCurrentState;
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}
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void LayerBase::commitTransaction(bool skipSize) {
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const uint32_t w = mDrawingState.w;
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const uint32_t h = mDrawingState.h;
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mDrawingState = mCurrentState;
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if (skipSize) {
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mDrawingState.w = w;
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mDrawingState.h = h;
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}
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}
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void LayerBase::forceVisibilityTransaction() {
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// this can be called without SurfaceFlinger.mStateLock, but if we
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// can atomically increment the sequence number, it doesn't matter.
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android_atomic_inc(&mCurrentState.sequence);
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requestTransaction();
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}
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bool LayerBase::requestTransaction() {
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int32_t old = setTransactionFlags(eTransactionNeeded);
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return ((old & eTransactionNeeded) == 0);
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}
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uint32_t LayerBase::getTransactionFlags(uint32_t flags) {
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return android_atomic_and(~flags, &mTransactionFlags) & flags;
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}
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uint32_t LayerBase::setTransactionFlags(uint32_t flags) {
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return android_atomic_or(flags, &mTransactionFlags);
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}
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void LayerBase::setSizeChanged(uint32_t w, uint32_t h) {
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}
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bool LayerBase::setPosition(int32_t x, int32_t y) {
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if (mCurrentState.transform.tx() == x && mCurrentState.transform.ty() == y)
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return false;
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mCurrentState.sequence++;
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mCurrentState.transform.set(x, y);
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requestTransaction();
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return true;
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}
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bool LayerBase::setLayer(uint32_t z) {
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if (mCurrentState.z == z)
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return false;
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mCurrentState.sequence++;
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mCurrentState.z = z;
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requestTransaction();
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return true;
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}
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bool LayerBase::setSize(uint32_t w, uint32_t h) {
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if (mCurrentState.w == w && mCurrentState.h == h)
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return false;
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setSizeChanged(w, h);
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mCurrentState.w = w;
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mCurrentState.h = h;
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requestTransaction();
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return true;
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}
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bool LayerBase::setAlpha(uint8_t alpha) {
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if (mCurrentState.alpha == alpha)
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return false;
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mCurrentState.sequence++;
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mCurrentState.alpha = alpha;
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requestTransaction();
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return true;
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}
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bool LayerBase::setMatrix(const layer_state_t::matrix22_t& matrix) {
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// TODO: check the matrix has changed
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mCurrentState.sequence++;
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mCurrentState.transform.set(
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matrix.dsdx, matrix.dsdy, matrix.dtdx, matrix.dtdy);
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requestTransaction();
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return true;
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}
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bool LayerBase::setTransparentRegionHint(const Region& transparent) {
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// TODO: check the region has changed
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mCurrentState.sequence++;
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mCurrentState.transparentRegion = transparent;
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requestTransaction();
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return true;
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}
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bool LayerBase::setFlags(uint8_t flags, uint8_t mask) {
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const uint32_t newFlags = (mCurrentState.flags & ~mask) | (flags & mask);
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if (mCurrentState.flags == newFlags)
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return false;
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mCurrentState.sequence++;
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mCurrentState.flags = newFlags;
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requestTransaction();
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return true;
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}
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Rect LayerBase::visibleBounds() const
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{
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return mTransformedBounds;
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}
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void LayerBase::setVisibleRegion(const Region& visibleRegion) {
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// always called from main thread
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visibleRegionScreen = visibleRegion;
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}
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void LayerBase::setCoveredRegion(const Region& coveredRegion) {
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// always called from main thread
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coveredRegionScreen = coveredRegion;
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}
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uint32_t LayerBase::doTransaction(uint32_t flags)
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{
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const Layer::State& front(drawingState());
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const Layer::State& temp(currentState());
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if (temp.sequence != front.sequence) {
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// invalidate and recompute the visible regions if needed
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flags |= eVisibleRegion;
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this->contentDirty = true;
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}
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// Commit the transaction
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commitTransaction(flags & eRestartTransaction);
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return flags;
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}
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Point LayerBase::getPhysicalSize() const
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{
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const Layer::State& front(drawingState());
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return Point(front.w, front.h);
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}
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void LayerBase::validateVisibility(const Transform& planeTransform)
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{
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const Layer::State& s(drawingState());
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const Transform tr(planeTransform * s.transform);
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const bool transformed = tr.transformed();
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const Point size(getPhysicalSize());
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uint32_t w = size.x;
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uint32_t h = size.y;
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tr.transform(mVertices[0], 0, 0);
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tr.transform(mVertices[1], 0, h);
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tr.transform(mVertices[2], w, h);
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tr.transform(mVertices[3], w, 0);
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if (UNLIKELY(transformed)) {
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// NOTE: here we could also punt if we have too many rectangles
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// in the transparent region
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if (tr.preserveRects()) {
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// transform the transparent region
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transparentRegionScreen = tr.transform(s.transparentRegion);
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} else {
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// transformation too complex, can't do the transparent region
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// optimization.
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transparentRegionScreen.clear();
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}
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} else {
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transparentRegionScreen = s.transparentRegion;
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}
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// cache a few things...
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mOrientation = tr.getOrientation();
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mTransformedBounds = tr.makeBounds(w, h);
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mTransformed = transformed;
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mLeft = tr.tx();
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mTop = tr.ty();
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}
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void LayerBase::lockPageFlip(bool& recomputeVisibleRegions)
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{
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}
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void LayerBase::unlockPageFlip(
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const Transform& planeTransform, Region& outDirtyRegion)
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{
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if ((android_atomic_and(~1, &mInvalidate)&1) == 1) {
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outDirtyRegion.orSelf(visibleRegionScreen);
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}
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}
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void LayerBase::finishPageFlip()
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{
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}
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void LayerBase::invalidate()
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{
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if ((android_atomic_or(1, &mInvalidate)&1) == 0) {
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mFlinger->signalEvent();
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}
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}
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void LayerBase::drawRegion(const Region& reg) const
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{
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Region::iterator iterator(reg);
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if (iterator) {
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Rect r;
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const DisplayHardware& hw(graphicPlane(0).displayHardware());
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const int32_t fbWidth = hw.getWidth();
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const int32_t fbHeight = hw.getHeight();
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const GLshort vertices[][2] = { { 0, 0 }, { fbWidth, 0 },
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{ fbWidth, fbHeight }, { 0, fbHeight } };
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glVertexPointer(2, GL_SHORT, 0, vertices);
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while (iterator.iterate(&r)) {
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const GLint sy = fbHeight - (r.top + r.height());
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glScissor(r.left, sy, r.width(), r.height());
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glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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}
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}
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}
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void LayerBase::draw(const Region& inClip) const
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{
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// invalidate the region we'll update
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Region clip(inClip); // copy-on-write, so no-op most of the time
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// Remove the transparent area from the clipping region
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const State& s = drawingState();
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if (LIKELY(!s.transparentRegion.isEmpty())) {
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clip.subtract(transparentRegionScreen);
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if (clip.isEmpty()) {
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// usually this won't happen because this should be taken care of
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// by SurfaceFlinger::computeVisibleRegions()
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return;
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}
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}
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// reset GL state
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glEnable(GL_SCISSOR_TEST);
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onDraw(clip);
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/*
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glDisable(GL_TEXTURE_2D);
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glDisable(GL_DITHER);
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glEnable(GL_BLEND);
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glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
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glColor4x(0, 0x8000, 0, 0x10000);
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drawRegion(transparentRegionScreen);
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glDisable(GL_BLEND);
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*/
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}
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GLuint LayerBase::createTexture() const
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{
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GLuint textureName = -1;
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glGenTextures(1, &textureName);
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glBindTexture(GL_TEXTURE_2D, textureName);
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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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if (mFlags & DisplayHardware::SLOW_CONFIG) {
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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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} else {
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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}
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return textureName;
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}
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void LayerBase::clearWithOpenGL(const Region& clip) const
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{
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const DisplayHardware& hw(graphicPlane(0).displayHardware());
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const uint32_t fbHeight = hw.getHeight();
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glColor4x(0,0,0,0);
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glDisable(GL_TEXTURE_2D);
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glDisable(GL_BLEND);
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glDisable(GL_DITHER);
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Rect r;
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Region::iterator iterator(clip);
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if (iterator) {
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glEnable(GL_SCISSOR_TEST);
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glVertexPointer(2, GL_FIXED, 0, mVertices);
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while (iterator.iterate(&r)) {
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const GLint sy = fbHeight - (r.top + r.height());
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glScissor(r.left, sy, r.width(), r.height());
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glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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}
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}
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}
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void LayerBase::drawWithOpenGL(const Region& clip,
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GLint textureName, const GGLSurface& t, int transform) const
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{
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const DisplayHardware& hw(graphicPlane(0).displayHardware());
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const uint32_t fbHeight = hw.getHeight();
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const State& s(drawingState());
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// bind our texture
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validateTexture(textureName);
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glEnable(GL_TEXTURE_2D);
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// Dithering...
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if (s.flags & ISurfaceComposer::eLayerDither) {
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glEnable(GL_DITHER);
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} else {
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glDisable(GL_DITHER);
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}
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if (UNLIKELY(s.alpha < 0xFF)) {
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// We have an alpha-modulation. We need to modulate all
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// texture components by alpha because we're always using
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// premultiplied alpha.
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// If the texture doesn't have an alpha channel we can
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// use REPLACE and switch to non premultiplied alpha
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// blending (SRCA/ONE_MINUS_SRCA).
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GLenum env, src;
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if (needsBlending()) {
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env = GL_MODULATE;
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src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA;
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} else {
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env = GL_REPLACE;
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src = GL_SRC_ALPHA;
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}
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const GGLfixed alpha = (s.alpha << 16)/255;
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glColor4x(alpha, alpha, alpha, alpha);
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glEnable(GL_BLEND);
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glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA);
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glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, env);
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} else {
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glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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glColor4x(0x10000, 0x10000, 0x10000, 0x10000);
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if (needsBlending()) {
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GLenum src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA;
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glEnable(GL_BLEND);
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glBlendFunc(src, GL_ONE_MINUS_SRC_ALPHA);
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} else {
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glDisable(GL_BLEND);
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}
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}
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if (UNLIKELY(transformed()
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|| !(mFlags & DisplayHardware::DRAW_TEXTURE_EXTENSION) ))
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{
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//StopWatch watch("GL transformed");
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Region::iterator iterator(clip);
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if (iterator) {
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// always use high-quality filtering with fast configurations
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bool fast = !(mFlags & DisplayHardware::SLOW_CONFIG);
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if (!fast && s.flags & ISurfaceComposer::eLayerFilter) {
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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}
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const GLfixed texCoords[4][2] = {
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{ 0, 0 },
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{ 0, 0x10000 },
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{ 0x10000, 0x10000 },
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{ 0x10000, 0 }
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};
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glMatrixMode(GL_TEXTURE);
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glLoadIdentity();
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if (transform == HAL_TRANSFORM_ROT_90) {
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glTranslatef(0, 1, 0);
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glRotatef(-90, 0, 0, 1);
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}
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if (!(mFlags & DisplayHardware::NPOT_EXTENSION)) {
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// find the smallest power-of-two that will accommodate our surface
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GLuint tw = 1 << (31 - clz(t.width));
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GLuint th = 1 << (31 - clz(t.height));
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if (tw < t.width) tw <<= 1;
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if (th < t.height) th <<= 1;
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// this divide should be relatively fast because it's
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// a power-of-two (optimized path in libgcc)
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GLfloat ws = GLfloat(t.width) /tw;
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GLfloat hs = GLfloat(t.height)/th;
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glScalef(ws, hs, 1.0f);
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}
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glVertexPointer(2, GL_FIXED, 0, mVertices);
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glTexCoordPointer(2, GL_FIXED, 0, texCoords);
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Rect r;
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while (iterator.iterate(&r)) {
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const GLint sy = fbHeight - (r.top + r.height());
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glScissor(r.left, sy, r.width(), r.height());
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glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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}
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if (!fast && s.flags & ISurfaceComposer::eLayerFilter) {
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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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}
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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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}
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} else {
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Region::iterator iterator(clip);
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if (iterator) {
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Rect r;
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GLint crop[4] = { 0, t.height, t.width, -t.height };
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glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
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int x = tx();
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int y = ty();
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y = fbHeight - (y + t.height);
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while (iterator.iterate(&r)) {
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const GLint sy = fbHeight - (r.top + r.height());
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glScissor(r.left, sy, r.width(), r.height());
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glDrawTexiOES(x, y, 0, t.width, t.height);
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}
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}
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}
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}
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void LayerBase::validateTexture(GLint textureName) const
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{
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glBindTexture(GL_TEXTURE_2D, textureName);
|
|
// TODO: reload the texture if needed
|
|
// this is currently done in loadTexture() below
|
|
}
|
|
|
|
void LayerBase::loadTexture(const Region& dirty,
|
|
GLint textureName, const GGLSurface& t,
|
|
GLuint& textureWidth, GLuint& textureHeight) const
|
|
{
|
|
// TODO: defer the actual texture reload until LayerBase::validateTexture
|
|
// is called.
|
|
|
|
uint32_t flags = mFlags;
|
|
glBindTexture(GL_TEXTURE_2D, textureName);
|
|
|
|
GLuint tw = t.width;
|
|
GLuint th = t.height;
|
|
|
|
/*
|
|
* In OpenGL ES we can't specify a stride with glTexImage2D (however,
|
|
* GL_UNPACK_ALIGNMENT is a limited form of stride).
|
|
* So if the stride here isn't representable with GL_UNPACK_ALIGNMENT, we
|
|
* need to do something reasonable (here creating a bigger texture).
|
|
*
|
|
* extra pixels = (((stride - width) * pixelsize) / GL_UNPACK_ALIGNMENT);
|
|
*
|
|
* This situation doesn't happen often, but some h/w have a limitation
|
|
* for their framebuffer (eg: must be multiple of 8 pixels), and
|
|
* we need to take that into account when using these buffers as
|
|
* textures.
|
|
*
|
|
* This should never be a problem with POT textures
|
|
*/
|
|
|
|
int unpack = __builtin_ctz(t.stride * bytesPerPixel(t.format));
|
|
unpack = 1 << ((unpack > 3) ? 3 : unpack);
|
|
glPixelStorei(GL_UNPACK_ALIGNMENT, unpack);
|
|
|
|
/*
|
|
* round to POT if needed
|
|
*/
|
|
|
|
GLuint texture_w = tw;
|
|
GLuint texture_h = th;
|
|
if (!(flags & DisplayHardware::NPOT_EXTENSION)) {
|
|
// find the smallest power-of-two that will accommodate our surface
|
|
texture_w = 1 << (31 - clz(t.width));
|
|
texture_h = 1 << (31 - clz(t.height));
|
|
if (texture_w < t.width) texture_w <<= 1;
|
|
if (texture_h < t.height) texture_h <<= 1;
|
|
}
|
|
|
|
regular:
|
|
Rect bounds(dirty.bounds());
|
|
GLvoid* data = 0;
|
|
if (texture_w!=textureWidth || texture_h!=textureHeight) {
|
|
// texture size changed, we need to create a new one
|
|
|
|
if (!textureWidth || !textureHeight) {
|
|
// this is the first time, load the whole texture
|
|
if (texture_w==tw && texture_h==th) {
|
|
// we can do it one pass
|
|
data = t.data;
|
|
} else {
|
|
// we have to create the texture first because it
|
|
// doesn't match the size of the buffer
|
|
bounds.set(Rect(tw, th));
|
|
}
|
|
}
|
|
|
|
if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
|
|
glTexImage2D(GL_TEXTURE_2D, 0,
|
|
GL_RGB, texture_w, texture_h, 0,
|
|
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, data);
|
|
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
|
|
glTexImage2D(GL_TEXTURE_2D, 0,
|
|
GL_RGBA, texture_w, texture_h, 0,
|
|
GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, data);
|
|
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
|
|
glTexImage2D(GL_TEXTURE_2D, 0,
|
|
GL_RGBA, texture_w, texture_h, 0,
|
|
GL_RGBA, GL_UNSIGNED_BYTE, data);
|
|
} else if ( t.format == GGL_PIXEL_FORMAT_YCbCr_422_SP ||
|
|
t.format == GGL_PIXEL_FORMAT_YCbCr_420_SP) {
|
|
// just show the Y plane of YUV buffers
|
|
glTexImage2D(GL_TEXTURE_2D, 0,
|
|
GL_LUMINANCE, texture_w, texture_h, 0,
|
|
GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
|
|
} else {
|
|
// oops, we don't handle this format!
|
|
LOGE("layer %p, texture=%d, using format %d, which is not "
|
|
"supported by the GL", this, textureName, t.format);
|
|
textureName = -1;
|
|
}
|
|
textureWidth = texture_w;
|
|
textureHeight = texture_h;
|
|
}
|
|
if (!data && textureName>=0) {
|
|
if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0,
|
|
0, bounds.top, t.width, bounds.height(),
|
|
GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
|
|
t.data + bounds.top*t.stride*2);
|
|
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0,
|
|
0, bounds.top, t.width, bounds.height(),
|
|
GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4,
|
|
t.data + bounds.top*t.stride*2);
|
|
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0,
|
|
0, bounds.top, t.width, bounds.height(),
|
|
GL_RGBA, GL_UNSIGNED_BYTE,
|
|
t.data + bounds.top*t.stride*4);
|
|
} else if ( t.format == GGL_PIXEL_FORMAT_YCbCr_422_SP ||
|
|
t.format == GGL_PIXEL_FORMAT_YCbCr_420_SP) {
|
|
// just show the Y plane of YUV buffers
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0,
|
|
0, bounds.top, t.width, bounds.height(),
|
|
GL_LUMINANCE, GL_UNSIGNED_BYTE,
|
|
t.data + bounds.top*t.stride);
|
|
}
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
LayerBaseClient::LayerBaseClient(SurfaceFlinger* flinger, DisplayID display,
|
|
Client* c, int32_t i)
|
|
: LayerBase(flinger, display), client(c),
|
|
lcblk( c ? &(c->ctrlblk->layers[i]) : 0 ),
|
|
mIndex(i)
|
|
{
|
|
}
|
|
|
|
void LayerBaseClient::onFirstRef()
|
|
{
|
|
if (client) {
|
|
client->bindLayer(this, mIndex);
|
|
// Initialize this layer's control block
|
|
memset(this->lcblk, 0, sizeof(layer_cblk_t));
|
|
this->lcblk->identity = mIdentity;
|
|
Region::writeEmpty(&(this->lcblk->region[0]), sizeof(flat_region_t));
|
|
Region::writeEmpty(&(this->lcblk->region[1]), sizeof(flat_region_t));
|
|
}
|
|
}
|
|
|
|
LayerBaseClient::~LayerBaseClient()
|
|
{
|
|
if (client) {
|
|
client->free(mIndex);
|
|
}
|
|
}
|
|
|
|
int32_t LayerBaseClient::serverIndex() const {
|
|
if (client) {
|
|
return (client->cid<<16)|mIndex;
|
|
}
|
|
return 0xFFFF0000 | mIndex;
|
|
}
|
|
|
|
sp<LayerBaseClient::Surface> LayerBaseClient::getSurface()
|
|
{
|
|
sp<Surface> s;
|
|
Mutex::Autolock _l(mLock);
|
|
s = mClientSurface.promote();
|
|
if (s == 0) {
|
|
s = createSurface();
|
|
mClientSurface = s;
|
|
}
|
|
return s;
|
|
}
|
|
|
|
sp<LayerBaseClient::Surface> LayerBaseClient::createSurface() const
|
|
{
|
|
return new Surface(clientIndex(), mIdentity,
|
|
const_cast<LayerBaseClient *>(this));
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
LayerBaseClient::Surface::Surface(SurfaceID id, int identity,
|
|
const sp<LayerBaseClient>& owner)
|
|
: mToken(id), mIdentity(identity), mOwner(owner)
|
|
{
|
|
}
|
|
|
|
|
|
LayerBaseClient::Surface::~Surface() {
|
|
// TODO: We now have a point here were we can clean-up the
|
|
// client's mess.
|
|
// This is also where surface id should be recycled.
|
|
//LOGD("Surface %d, heaps={%p, %p} destroyed",
|
|
// mId, mHeap[0].get(), mHeap[1].get());
|
|
}
|
|
|
|
sp<LayerBaseClient> LayerBaseClient::Surface::getOwner() const {
|
|
sp<LayerBaseClient> owner(mOwner.promote());
|
|
return owner;
|
|
}
|
|
|
|
|
|
void LayerBaseClient::Surface::getSurfaceData(
|
|
ISurfaceFlingerClient::surface_data_t* params) const
|
|
{
|
|
params->token = mToken;
|
|
params->identity = mIdentity;
|
|
}
|
|
|
|
status_t LayerBaseClient::Surface::onTransact(
|
|
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
switch (code) {
|
|
case REGISTER_BUFFERS:
|
|
case UNREGISTER_BUFFERS:
|
|
case CREATE_OVERLAY:
|
|
{
|
|
// codes that require permission check
|
|
IPCThreadState* ipc = IPCThreadState::self();
|
|
const int pid = ipc->getCallingPid();
|
|
const int self_pid = getpid();
|
|
if (LIKELY(pid != self_pid)) {
|
|
// we're called from a different process, do the real check
|
|
if (!checkCallingPermission(
|
|
String16("android.permission.ACCESS_SURFACE_FLINGER")))
|
|
{
|
|
const int uid = ipc->getCallingUid();
|
|
LOGE("Permission Denial: "
|
|
"can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
|
|
return PERMISSION_DENIED;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return BnSurface::onTransact(code, data, reply, flags);
|
|
}
|
|
|
|
sp<SurfaceBuffer> LayerBaseClient::Surface::getBuffer()
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
status_t LayerBaseClient::Surface::registerBuffers(
|
|
const ISurface::BufferHeap& buffers)
|
|
{
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
void LayerBaseClient::Surface::postBuffer(ssize_t offset)
|
|
{
|
|
}
|
|
|
|
void LayerBaseClient::Surface::unregisterBuffers()
|
|
{
|
|
}
|
|
|
|
sp<OverlayRef> LayerBaseClient::Surface::createOverlay(
|
|
uint32_t w, uint32_t h, int32_t format)
|
|
{
|
|
return NULL;
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|