771 lines
24 KiB
C++
771 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 <binder/IPCThreadState.h>
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#include <binder/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 "SurfaceFlinger.h"
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#include "DisplayHardware/DisplayHardware.h"
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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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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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mUseLinearFiltering(false),
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mOrientation(0),
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mTransactionFlags(0),
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mPremultipliedAlpha(true),
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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.requested_w = w;
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mCurrentState.requested_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() {
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mDrawingState = mCurrentState;
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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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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.requested_w == w && mCurrentState.requested_h == h)
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return false;
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mCurrentState.requested_w = w;
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mCurrentState.requested_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 ((front.requested_w != temp.requested_w) ||
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(front.requested_h != temp.requested_h)) {
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// resize the layer, set the physical size to the requested size
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Layer::State& editTemp(currentState());
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editTemp.w = temp.requested_w;
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editTemp.h = temp.requested_h;
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}
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if ((front.w != temp.w) || (front.h != temp.h)) {
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// invalidate and recompute the visible regions if needed
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flags |= Layer::eVisibleRegion;
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this->contentDirty = true;
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}
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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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const bool linearFiltering = mUseLinearFiltering;
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mUseLinearFiltering = false;
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if (!(mFlags & DisplayHardware::SLOW_CONFIG)) {
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// we may use linear filtering, if the matrix scales us
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const uint8_t type = temp.transform.getType();
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if (!temp.transform.preserveRects() || (type >= Transform::SCALE)) {
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mUseLinearFiltering = true;
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}
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}
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}
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// Commit the transaction
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commitTransaction();
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return flags;
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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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uint32_t w = s.w;
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uint32_t h = s.h;
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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::const_iterator it = reg.begin();
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Region::const_iterator const end = reg.end();
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if (it != end) {
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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 (it != end) {
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const Rect& r = *it++;
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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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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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return textureName;
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}
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void LayerBase::clearWithOpenGL(const Region& clip, GLclampx red,
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GLclampx green, GLclampx blue,
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GLclampx alpha) 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(red,green,blue,alpha);
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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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Region::const_iterator it = clip.begin();
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Region::const_iterator const end = clip.end();
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glEnable(GL_SCISSOR_TEST);
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glVertexPointer(2, GL_FIXED, 0, mVertices);
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while (it != end) {
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const Rect& r = *it++;
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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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void LayerBase::clearWithOpenGL(const Region& clip) const
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{
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clearWithOpenGL(clip,0,0,0,0);
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}
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void LayerBase::drawWithOpenGL(const Region& clip, const Texture& texture) 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(texture.name);
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uint32_t width = texture.width;
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uint32_t height = texture.height;
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glEnable(GL_TEXTURE_2D);
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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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Region::const_iterator it = clip.begin();
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Region::const_iterator const end = clip.end();
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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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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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// the texture's source is rotated
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if (texture.transform == HAL_TRANSFORM_ROT_90) {
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// TODO: handle the other orientations
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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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DisplayHardware::DIRECT_TEXTURE))) {
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// find the smallest power-of-two that will accommodate our surface
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GLuint tw = 1 << (31 - clz(width));
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GLuint th = 1 << (31 - clz(height));
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if (tw < width) tw <<= 1;
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if (th < height) th <<= 1;
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GLfloat ws = GLfloat(width) /tw;
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GLfloat hs = GLfloat(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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while (it != end) {
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const Rect& r = *it++;
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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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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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} else {
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GLint crop[4] = { 0, height, width, -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 + height);
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while (it != end) {
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const Rect& r = *it++;
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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, width, height);
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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);
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// TODO: reload the texture if needed
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// this is currently done in loadTexture() below
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if (mUseLinearFiltering) {
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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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} else {
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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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if (needsDithering()) {
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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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}
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void LayerBase::loadTexture(Texture* texture, GLint textureName,
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const Region& dirty, const GGLSurface& t) const
|
|
{
|
|
// TODO: defer the actual texture reload until LayerBase::validateTexture
|
|
// is called.
|
|
|
|
texture->name = textureName;
|
|
GLuint& textureWidth(texture->width);
|
|
GLuint& textureHeight(texture->height);
|
|
|
|
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 ||
|
|
t.format == GGL_PIXEL_FORMAT_RGBX_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 ||
|
|
t.format == GGL_PIXEL_FORMAT_RGBX_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);
|
|
}
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
int32_t LayerBaseClient::sIdentity = 0;
|
|
|
|
LayerBaseClient::LayerBaseClient(SurfaceFlinger* flinger, DisplayID display,
|
|
const sp<Client>& client, int32_t i)
|
|
: LayerBase(flinger, display), lcblk(NULL), client(client),
|
|
mIndex(i), mIdentity(uint32_t(android_atomic_inc(&sIdentity)))
|
|
{
|
|
lcblk = new SharedBufferServer(
|
|
client->ctrlblk, i, NUM_BUFFERS,
|
|
mIdentity);
|
|
}
|
|
|
|
void LayerBaseClient::onFirstRef()
|
|
{
|
|
sp<Client> client(this->client.promote());
|
|
if (client != 0) {
|
|
client->bindLayer(this, mIndex);
|
|
}
|
|
}
|
|
|
|
LayerBaseClient::~LayerBaseClient()
|
|
{
|
|
sp<Client> client(this->client.promote());
|
|
if (client != 0) {
|
|
client->free(mIndex);
|
|
}
|
|
delete lcblk;
|
|
}
|
|
|
|
int32_t LayerBaseClient::serverIndex() const
|
|
{
|
|
sp<Client> client(this->client.promote());
|
|
if (client != 0) {
|
|
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(mFlinger, clientIndex(), mIdentity,
|
|
const_cast<LayerBaseClient *>(this));
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
LayerBaseClient::Surface::Surface(
|
|
const sp<SurfaceFlinger>& flinger,
|
|
SurfaceID id, int identity,
|
|
const sp<LayerBaseClient>& owner)
|
|
: mFlinger(flinger), mToken(id), mIdentity(identity), mOwner(owner)
|
|
{
|
|
}
|
|
|
|
|
|
LayerBaseClient::Surface::~Surface()
|
|
{
|
|
/*
|
|
* This is a good place to clean-up all client resources
|
|
*/
|
|
|
|
// destroy client resources
|
|
sp<LayerBaseClient> layer = getOwner();
|
|
if (layer != 0) {
|
|
mFlinger->destroySurface(layer);
|
|
}
|
|
}
|
|
|
|
sp<LayerBaseClient> LayerBaseClient::Surface::getOwner() const {
|
|
sp<LayerBaseClient> owner(mOwner.promote());
|
|
return owner;
|
|
}
|
|
|
|
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:
|
|
{
|
|
if (!mFlinger->mAccessSurfaceFlinger.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;
|
|
}
|
|
}
|
|
}
|
|
return BnSurface::onTransact(code, data, reply, flags);
|
|
}
|
|
|
|
sp<SurfaceBuffer> LayerBaseClient::Surface::requestBuffer(int index, int usage)
|
|
{
|
|
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
|