49753266d2
opaque 32-bits windows are now allocated as RGBX_8888 buffers and SurfaceFlinger always uses GL_MODULATE instead of trying to optimize to GL_REPLACE when possible (makes no sense on h/w accelerated GL). we still have a small hack for devices that don't support RGBX_8888 in their gralloc implementation where we revert to RGBA_8888.
638 lines
18 KiB
C++
638 lines
18 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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#include "TextureManager.h"
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namespace android {
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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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mNeedsFiltering(false),
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mOrientation(0),
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mLeft(0), mTop(0),
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mTransactionFlags(0),
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mPremultipliedAlpha(true), mName("unnamed"), mDebug(false),
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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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void LayerBase::setName(const String8& name) {
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mName = name;
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}
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String8 LayerBase::getName() const {
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return mName;
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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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}
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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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mNeedsFiltering = 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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mNeedsFiltering = 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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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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void LayerBase::clearWithOpenGL(const Region& clip, GLclampf red,
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GLclampf green, GLclampf blue,
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GLclampf 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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glColor4f(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_FLOAT, 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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GLenum src = mPremultipliedAlpha ? GL_ONE : GL_SRC_ALPHA;
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if (UNLIKELY(s.alpha < 0xFF)) {
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const GLfloat alpha = s.alpha * (1.0f/255.0f);
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if (mPremultipliedAlpha) {
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glColor4f(alpha, alpha, alpha, alpha);
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} else {
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glColor4f(1, 1, 1, alpha);
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}
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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, GL_MODULATE);
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} else {
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glColor4f(1, 1, 1, 1);
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glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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if (needsBlending()) {
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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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const GLfloat texCoords[4][2] = {
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{ 0, 0 },
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{ 0, 1 },
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{ 1, 1 },
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{ 1, 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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switch (texture.transform) {
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case 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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break;
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case HAL_TRANSFORM_ROT_180:
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glTranslatef(1, 1, 0);
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glRotatef(-180, 0, 0, 1);
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break;
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case HAL_TRANSFORM_ROT_270:
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glTranslatef(1, 0, 0);
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glRotatef(-270, 0, 0, 1);
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break;
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}
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if (texture.NPOTAdjust) {
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glScalef(texture.wScale, texture.hScale, 1.0f);
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}
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glVertexPointer(2, GL_FLOAT, 0, mVertices);
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glTexCoordPointer(2, GL_FLOAT, 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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}
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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 (needsFiltering()) {
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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::dump(String8& result, char* buffer, size_t SIZE) const
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{
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const Layer::State& s(drawingState());
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snprintf(buffer, SIZE,
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"+ %s %p\n"
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" "
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"z=%9d, pos=(%4d,%4d), size=(%4d,%4d), "
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"needsBlending=%1d, needsDithering=%1d, invalidate=%1d, "
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"alpha=0x%02x, flags=0x%08x, tr=[%.2f, %.2f][%.2f, %.2f]\n",
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getTypeId(), this, s.z, tx(), ty(), s.w, s.h,
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needsBlending(), needsDithering(), contentDirty,
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s.alpha, s.flags,
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s.transform[0][0], s.transform[0][1],
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s.transform[1][0], s.transform[1][1]);
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result.append(buffer);
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}
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// ---------------------------------------------------------------------------
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int32_t LayerBaseClient::sIdentity = 1;
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LayerBaseClient::LayerBaseClient(SurfaceFlinger* flinger, DisplayID display,
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const sp<Client>& client, int32_t i)
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: LayerBase(flinger, display), client(client), mIndex(i),
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mIdentity(uint32_t(android_atomic_inc(&sIdentity)))
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{
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}
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void LayerBaseClient::onFirstRef()
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{
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sp<Client> client(this->client.promote());
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if (client != 0) {
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client->bindLayer(this, mIndex);
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}
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}
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LayerBaseClient::~LayerBaseClient()
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{
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sp<Client> client(this->client.promote());
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if (client != 0) {
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client->free(mIndex);
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}
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}
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ssize_t LayerBaseClient::serverIndex() const
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{
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sp<Client> client(this->client.promote());
|
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if (client != 0) {
|
|
return (client->cid<<16)|mIndex;
|
|
}
|
|
return ssize_t(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));
|
|
}
|
|
|
|
void LayerBaseClient::dump(String8& result, char* buffer, size_t SIZE) const
|
|
{
|
|
LayerBase::dump(result, buffer, SIZE);
|
|
|
|
sp<Client> client(this->client.promote());
|
|
snprintf(buffer, SIZE,
|
|
" name=%s\n"
|
|
" id=0x%08x, client=0x%08x, identity=%u\n",
|
|
getName().string(),
|
|
clientIndex(), client.get() ? client->cid : 0,
|
|
getIdentity());
|
|
|
|
result.append(buffer);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
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<GraphicBuffer> LayerBaseClient::Surface::requestBuffer(int bufferIdx,
|
|
uint32_t w, uint32_t h, uint32_t format, uint32_t usage)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
status_t LayerBaseClient::Surface::setBufferCount(int bufferCount)
|
|
{
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
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, int32_t orientation)
|
|
{
|
|
return NULL;
|
|
};
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|