684 lines
20 KiB
C++
684 lines
20 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 <math.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/StopWatch.h>
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#include <ui/GraphicBuffer.h>
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#include <ui/PixelFormat.h>
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#include <ui/FramebufferNativeWindow.h>
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#include <ui/Rect.h>
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#include <ui/Region.h>
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#include <hardware/copybit.h>
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#include "LayerBuffer.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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gralloc_module_t const* LayerBuffer::sGrallocModule = 0;
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// ---------------------------------------------------------------------------
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LayerBuffer::LayerBuffer(SurfaceFlinger* flinger, DisplayID display,
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const sp<Client>& client)
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: LayerBaseClient(flinger, display, client),
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mNeedsBlending(false), mBlitEngine(0)
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{
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}
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LayerBuffer::~LayerBuffer()
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{
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if (mBlitEngine) {
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copybit_close(mBlitEngine);
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}
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}
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void LayerBuffer::onFirstRef()
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{
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LayerBaseClient::onFirstRef();
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mSurface = new SurfaceLayerBuffer(mFlinger, this);
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hw_module_t const* module = (hw_module_t const*)sGrallocModule;
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if (!module) {
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// NOTE: technically there is a race here, but it shouldn't
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// cause any problem since hw_get_module() always returns
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// the same value.
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if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) == 0) {
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sGrallocModule = (gralloc_module_t const *)module;
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}
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}
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if (hw_get_module(COPYBIT_HARDWARE_MODULE_ID, &module) == 0) {
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copybit_open(module, &mBlitEngine);
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}
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}
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sp<LayerBaseClient::Surface> LayerBuffer::createSurface() const
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{
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return mSurface;
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}
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status_t LayerBuffer::ditch()
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{
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mSurface.clear();
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return NO_ERROR;
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}
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bool LayerBuffer::needsBlending() const {
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return mNeedsBlending;
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}
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void LayerBuffer::setNeedsBlending(bool blending) {
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mNeedsBlending = blending;
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}
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void LayerBuffer::postBuffer(ssize_t offset)
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{
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sp<Source> source(getSource());
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if (source != 0)
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source->postBuffer(offset);
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}
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void LayerBuffer::unregisterBuffers()
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{
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sp<Source> source(clearSource());
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if (source != 0)
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source->unregisterBuffers();
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}
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uint32_t LayerBuffer::doTransaction(uint32_t flags)
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{
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sp<Source> source(getSource());
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if (source != 0)
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source->onTransaction(flags);
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uint32_t res = LayerBase::doTransaction(flags);
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// we always want filtering for these surfaces
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mNeedsFiltering = !(mFlags & DisplayHardware::SLOW_CONFIG);
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return res;
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}
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void LayerBuffer::unlockPageFlip(const Transform& planeTransform,
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Region& outDirtyRegion)
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{
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// this code-path must be as tight as possible, it's called each time
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// the screen is composited.
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sp<Source> source(getSource());
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if (source != 0)
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source->onVisibilityResolved(planeTransform);
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LayerBase::unlockPageFlip(planeTransform, outDirtyRegion);
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}
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void LayerBuffer::onDraw(const Region& clip) const
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{
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sp<Source> source(getSource());
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if (LIKELY(source != 0)) {
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source->onDraw(clip);
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} else {
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clearWithOpenGL(clip);
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}
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}
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void LayerBuffer::serverDestroy()
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{
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sp<Source> source(clearSource());
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if (source != 0) {
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source->destroy();
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}
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}
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/**
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* This creates a "buffer" source for this surface
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*/
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status_t LayerBuffer::registerBuffers(const ISurface::BufferHeap& buffers)
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{
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Mutex::Autolock _l(mLock);
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if (mSource != 0)
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return INVALID_OPERATION;
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sp<BufferSource> source = new BufferSource(*this, buffers);
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status_t result = source->getStatus();
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if (result == NO_ERROR) {
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mSource = source;
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}
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return result;
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}
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/**
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* This creates an "overlay" source for this surface
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*/
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sp<OverlayRef> LayerBuffer::createOverlay(uint32_t w, uint32_t h, int32_t f,
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int32_t orientation)
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{
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sp<OverlayRef> result;
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Mutex::Autolock _l(mLock);
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if (mSource != 0)
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return result;
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sp<OverlaySource> source = new OverlaySource(*this, &result, w, h, f, orientation);
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if (result != 0) {
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mSource = source;
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}
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return result;
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}
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sp<LayerBuffer::Source> LayerBuffer::getSource() const {
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Mutex::Autolock _l(mLock);
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return mSource;
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}
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sp<LayerBuffer::Source> LayerBuffer::clearSource() {
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sp<Source> source;
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Mutex::Autolock _l(mLock);
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source = mSource;
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mSource.clear();
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return source;
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}
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// ============================================================================
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// LayerBuffer::SurfaceLayerBuffer
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// ============================================================================
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LayerBuffer::SurfaceLayerBuffer::SurfaceLayerBuffer(
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const sp<SurfaceFlinger>& flinger, const sp<LayerBuffer>& owner)
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: LayerBaseClient::Surface(flinger, owner->getIdentity(), owner)
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{
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}
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LayerBuffer::SurfaceLayerBuffer::~SurfaceLayerBuffer()
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{
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unregisterBuffers();
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}
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status_t LayerBuffer::SurfaceLayerBuffer::registerBuffers(
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const ISurface::BufferHeap& buffers)
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{
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sp<LayerBuffer> owner(getOwner());
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if (owner != 0)
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return owner->registerBuffers(buffers);
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return NO_INIT;
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}
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void LayerBuffer::SurfaceLayerBuffer::postBuffer(ssize_t offset)
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{
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sp<LayerBuffer> owner(getOwner());
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if (owner != 0)
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owner->postBuffer(offset);
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}
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void LayerBuffer::SurfaceLayerBuffer::unregisterBuffers()
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{
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sp<LayerBuffer> owner(getOwner());
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if (owner != 0)
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owner->unregisterBuffers();
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}
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sp<OverlayRef> LayerBuffer::SurfaceLayerBuffer::createOverlay(
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uint32_t w, uint32_t h, int32_t format, int32_t orientation) {
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sp<OverlayRef> result;
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sp<LayerBuffer> owner(getOwner());
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if (owner != 0)
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result = owner->createOverlay(w, h, format, orientation);
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return result;
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}
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// ============================================================================
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// LayerBuffer::Buffer
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// ============================================================================
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LayerBuffer::Buffer::Buffer(const ISurface::BufferHeap& buffers,
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ssize_t offset, size_t bufferSize)
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: mBufferHeap(buffers), mSupportsCopybit(false)
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{
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NativeBuffer& src(mNativeBuffer);
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src.crop.l = 0;
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src.crop.t = 0;
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src.crop.r = buffers.w;
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src.crop.b = buffers.h;
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src.img.w = buffers.hor_stride ?: buffers.w;
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src.img.h = buffers.ver_stride ?: buffers.h;
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src.img.format = buffers.format;
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src.img.base = (void*)(intptr_t(buffers.heap->base()) + offset);
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src.img.handle = 0;
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gralloc_module_t const * module = LayerBuffer::getGrallocModule();
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if (module && module->perform) {
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int err = module->perform(module,
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GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER,
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buffers.heap->heapID(), bufferSize,
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offset, buffers.heap->base(),
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&src.img.handle);
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// we can fail here is the passed buffer is purely software
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mSupportsCopybit = (err == NO_ERROR);
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}
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}
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LayerBuffer::Buffer::~Buffer()
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{
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NativeBuffer& src(mNativeBuffer);
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if (src.img.handle) {
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native_handle_delete(src.img.handle);
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}
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}
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// ============================================================================
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// LayerBuffer::Source
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// LayerBuffer::BufferSource
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// LayerBuffer::OverlaySource
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// ============================================================================
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LayerBuffer::Source::Source(LayerBuffer& layer)
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: mLayer(layer)
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{
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}
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LayerBuffer::Source::~Source() {
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}
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void LayerBuffer::Source::onDraw(const Region& clip) const {
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}
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void LayerBuffer::Source::onTransaction(uint32_t flags) {
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}
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void LayerBuffer::Source::onVisibilityResolved(
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const Transform& planeTransform) {
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}
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void LayerBuffer::Source::postBuffer(ssize_t offset) {
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}
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void LayerBuffer::Source::unregisterBuffers() {
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}
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// ---------------------------------------------------------------------------
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LayerBuffer::BufferSource::BufferSource(LayerBuffer& layer,
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const ISurface::BufferHeap& buffers)
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: Source(layer), mStatus(NO_ERROR), mBufferSize(0),
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mTextureManager(layer.mFlags)
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{
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if (buffers.heap == NULL) {
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// this is allowed, but in this case, it is illegal to receive
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// postBuffer(). The surface just erases the framebuffer with
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// fully transparent pixels.
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mBufferHeap = buffers;
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mLayer.setNeedsBlending(false);
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return;
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}
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status_t err = (buffers.heap->heapID() >= 0) ? NO_ERROR : NO_INIT;
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if (err != NO_ERROR) {
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LOGE("LayerBuffer::BufferSource: invalid heap (%s)", strerror(err));
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mStatus = err;
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return;
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}
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PixelFormatInfo info;
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err = getPixelFormatInfo(buffers.format, &info);
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if (err != NO_ERROR) {
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LOGE("LayerBuffer::BufferSource: invalid format %d (%s)",
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buffers.format, strerror(err));
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mStatus = err;
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return;
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}
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if (buffers.hor_stride<0 || buffers.ver_stride<0) {
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LOGE("LayerBuffer::BufferSource: invalid parameters "
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"(w=%d, h=%d, xs=%d, ys=%d)",
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buffers.w, buffers.h, buffers.hor_stride, buffers.ver_stride);
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mStatus = BAD_VALUE;
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return;
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}
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mBufferHeap = buffers;
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mLayer.setNeedsBlending((info.h_alpha - info.l_alpha) > 0);
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mBufferSize = info.getScanlineSize(buffers.hor_stride)*buffers.ver_stride;
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mLayer.forceVisibilityTransaction();
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}
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LayerBuffer::BufferSource::~BufferSource()
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{
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class MessageDestroyTexture : public MessageBase {
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SurfaceFlinger* flinger;
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GLuint name;
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public:
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MessageDestroyTexture(
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SurfaceFlinger* flinger, GLuint name)
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: flinger(flinger), name(name) { }
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virtual bool handler() {
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glDeleteTextures(1, &name);
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return true;
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}
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};
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if (mTexture.name != -1U) {
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// GL textures can only be destroyed from the GL thread
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mLayer.mFlinger->mEventQueue.postMessage(
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new MessageDestroyTexture(mLayer.mFlinger.get(), mTexture.name) );
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}
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if (mTexture.image != EGL_NO_IMAGE_KHR) {
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EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
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eglDestroyImageKHR(dpy, mTexture.image);
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}
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}
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void LayerBuffer::BufferSource::postBuffer(ssize_t offset)
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{
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ISurface::BufferHeap buffers;
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{ // scope for the lock
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Mutex::Autolock _l(mBufferSourceLock);
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buffers = mBufferHeap;
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if (buffers.heap != 0) {
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const size_t memorySize = buffers.heap->getSize();
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if ((size_t(offset) + mBufferSize) > memorySize) {
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LOGE("LayerBuffer::BufferSource::postBuffer() "
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"invalid buffer (offset=%d, size=%d, heap-size=%d",
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int(offset), int(mBufferSize), int(memorySize));
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return;
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}
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}
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}
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sp<Buffer> buffer;
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if (buffers.heap != 0) {
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buffer = new LayerBuffer::Buffer(buffers, offset, mBufferSize);
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if (buffer->getStatus() != NO_ERROR)
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buffer.clear();
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setBuffer(buffer);
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mLayer.invalidate();
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}
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}
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void LayerBuffer::BufferSource::unregisterBuffers()
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{
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Mutex::Autolock _l(mBufferSourceLock);
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mBufferHeap.heap.clear();
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mBuffer.clear();
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mLayer.invalidate();
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}
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sp<LayerBuffer::Buffer> LayerBuffer::BufferSource::getBuffer() const
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{
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Mutex::Autolock _l(mBufferSourceLock);
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return mBuffer;
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}
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void LayerBuffer::BufferSource::setBuffer(const sp<LayerBuffer::Buffer>& buffer)
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{
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Mutex::Autolock _l(mBufferSourceLock);
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mBuffer = buffer;
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}
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void LayerBuffer::BufferSource::onDraw(const Region& clip) const
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{
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sp<Buffer> ourBuffer(getBuffer());
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if (UNLIKELY(ourBuffer == 0)) {
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// nothing to do, we don't have a buffer
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mLayer.clearWithOpenGL(clip);
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return;
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}
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status_t err = NO_ERROR;
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NativeBuffer src(ourBuffer->getBuffer());
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const Rect transformedBounds(mLayer.getTransformedBounds());
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#if defined(EGL_ANDROID_image_native_buffer)
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if (mLayer.mFlags & DisplayHardware::DIRECT_TEXTURE) {
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err = INVALID_OPERATION;
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if (ourBuffer->supportsCopybit()) {
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copybit_device_t* copybit = mLayer.mBlitEngine;
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if (copybit && err != NO_ERROR) {
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// create our EGLImageKHR the first time
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err = initTempBuffer();
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if (err == NO_ERROR) {
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// NOTE: Assume the buffer is allocated with the proper USAGE flags
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const NativeBuffer& dst(mTempBuffer);
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region_iterator clip(Region(Rect(dst.crop.r, dst.crop.b)));
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copybit->set_parameter(copybit, COPYBIT_TRANSFORM, 0);
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copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 0xFF);
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copybit->set_parameter(copybit, COPYBIT_DITHER, COPYBIT_ENABLE);
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err = copybit->stretch(copybit, &dst.img, &src.img,
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&dst.crop, &src.crop, &clip);
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if (err != NO_ERROR) {
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clearTempBufferImage();
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}
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}
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}
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}
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}
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#endif
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else {
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err = INVALID_OPERATION;
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}
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if (err != NO_ERROR) {
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// slower fallback
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GGLSurface t;
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t.version = sizeof(GGLSurface);
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t.width = src.crop.r;
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t.height = src.crop.b;
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t.stride = src.img.w;
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t.vstride= src.img.h;
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t.format = src.img.format;
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t.data = (GGLubyte*)src.img.base;
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const Region dirty(Rect(t.width, t.height));
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mTextureManager.loadTexture(&mTexture, dirty, t);
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}
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mTexture.transform = mBufferHeap.transform;
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mLayer.drawWithOpenGL(clip, mTexture);
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}
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status_t LayerBuffer::BufferSource::initTempBuffer() const
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{
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// figure out the size we need now
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const ISurface::BufferHeap& buffers(mBufferHeap);
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uint32_t w = mLayer.mTransformedBounds.width();
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uint32_t h = mLayer.mTransformedBounds.height();
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if (buffers.w * h != buffers.h * w) {
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int t = w; w = h; h = t;
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}
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// we're in the copybit case, so make sure we can handle this blit
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// we don't have to keep the aspect ratio here
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copybit_device_t* copybit = mLayer.mBlitEngine;
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const int down = copybit->get(copybit, COPYBIT_MINIFICATION_LIMIT);
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const int up = copybit->get(copybit, COPYBIT_MAGNIFICATION_LIMIT);
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if (buffers.w > w*down) w = buffers.w / down;
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else if (w > buffers.w*up) w = buffers.w*up;
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if (buffers.h > h*down) h = buffers.h / down;
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else if (h > buffers.h*up) h = buffers.h*up;
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if (mTexture.image != EGL_NO_IMAGE_KHR) {
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// we have an EGLImage, make sure the needed size didn't change
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if (w!=mTexture.width || h!= mTexture.height) {
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// delete the EGLImage and texture
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clearTempBufferImage();
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} else {
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// we're good, we have an EGLImageKHR and it's (still) the
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// right size
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return NO_ERROR;
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}
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}
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// figure out if we need linear filtering
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if (buffers.w * h == buffers.h * w) {
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// same pixel area, don't use filtering
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mLayer.mNeedsFiltering = false;
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}
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// Allocate a temporary buffer and create the corresponding EGLImageKHR
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// once the EGLImage has been created we don't need the
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// graphic buffer reference anymore.
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sp<GraphicBuffer> buffer = new GraphicBuffer(
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w, h, HAL_PIXEL_FORMAT_RGB_565,
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GraphicBuffer::USAGE_HW_TEXTURE |
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GraphicBuffer::USAGE_HW_2D);
|
|
|
|
status_t err = buffer->initCheck();
|
|
if (err == NO_ERROR) {
|
|
NativeBuffer& dst(mTempBuffer);
|
|
dst.img.w = buffer->getStride();
|
|
dst.img.h = h;
|
|
dst.img.format = buffer->getPixelFormat();
|
|
dst.img.handle = (native_handle_t *)buffer->handle;
|
|
dst.img.base = 0;
|
|
dst.crop.l = 0;
|
|
dst.crop.t = 0;
|
|
dst.crop.r = w;
|
|
dst.crop.b = h;
|
|
|
|
EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
|
|
err = mTextureManager.initEglImage(&mTexture, dpy, buffer);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
void LayerBuffer::BufferSource::clearTempBufferImage() const
|
|
{
|
|
// delete the image
|
|
EGLDisplay dpy(mLayer.mFlinger->graphicPlane(0).getEGLDisplay());
|
|
eglDestroyImageKHR(dpy, mTexture.image);
|
|
|
|
// and the associated texture (recreate a name)
|
|
glDeleteTextures(1, &mTexture.name);
|
|
Texture defaultTexture;
|
|
mTexture = defaultTexture;
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
LayerBuffer::OverlaySource::OverlaySource(LayerBuffer& layer,
|
|
sp<OverlayRef>* overlayRef,
|
|
uint32_t w, uint32_t h, int32_t format, int32_t orientation)
|
|
: Source(layer), mVisibilityChanged(false),
|
|
mOverlay(0), mOverlayHandle(0), mOverlayDevice(0), mOrientation(orientation)
|
|
{
|
|
overlay_control_device_t* overlay_dev = mLayer.mFlinger->getOverlayEngine();
|
|
if (overlay_dev == NULL) {
|
|
// overlays not supported
|
|
return;
|
|
}
|
|
|
|
mOverlayDevice = overlay_dev;
|
|
overlay_t* overlay = overlay_dev->createOverlay(overlay_dev, w, h, format);
|
|
if (overlay == NULL) {
|
|
// couldn't create the overlay (no memory? no more overlays?)
|
|
return;
|
|
}
|
|
|
|
// enable dithering...
|
|
overlay_dev->setParameter(overlay_dev, overlay,
|
|
OVERLAY_DITHER, OVERLAY_ENABLE);
|
|
|
|
mOverlay = overlay;
|
|
mWidth = overlay->w;
|
|
mHeight = overlay->h;
|
|
mFormat = overlay->format;
|
|
mWidthStride = overlay->w_stride;
|
|
mHeightStride = overlay->h_stride;
|
|
mInitialized = false;
|
|
|
|
mOverlayHandle = overlay->getHandleRef(overlay);
|
|
|
|
sp<OverlayChannel> channel = new OverlayChannel( &layer );
|
|
|
|
*overlayRef = new OverlayRef(mOverlayHandle, channel,
|
|
mWidth, mHeight, mFormat, mWidthStride, mHeightStride);
|
|
mLayer.mFlinger->signalEvent();
|
|
}
|
|
|
|
LayerBuffer::OverlaySource::~OverlaySource()
|
|
{
|
|
if (mOverlay && mOverlayDevice) {
|
|
overlay_control_device_t* overlay_dev = mOverlayDevice;
|
|
overlay_dev->destroyOverlay(overlay_dev, mOverlay);
|
|
}
|
|
}
|
|
|
|
void LayerBuffer::OverlaySource::onDraw(const Region& clip) const
|
|
{
|
|
// this would be where the color-key would be set, should we need it.
|
|
GLclampf red = 0;
|
|
GLclampf green = 0;
|
|
GLclampf blue = 0;
|
|
mLayer.clearWithOpenGL(clip, red, green, blue, 0);
|
|
}
|
|
|
|
void LayerBuffer::OverlaySource::onTransaction(uint32_t flags)
|
|
{
|
|
const Layer::State& front(mLayer.drawingState());
|
|
const Layer::State& temp(mLayer.currentState());
|
|
if (temp.sequence != front.sequence) {
|
|
mVisibilityChanged = true;
|
|
}
|
|
}
|
|
|
|
void LayerBuffer::OverlaySource::onVisibilityResolved(
|
|
const Transform& planeTransform)
|
|
{
|
|
// this code-path must be as tight as possible, it's called each time
|
|
// the screen is composited.
|
|
if (UNLIKELY(mOverlay != 0)) {
|
|
if (mVisibilityChanged || !mInitialized) {
|
|
mVisibilityChanged = false;
|
|
mInitialized = true;
|
|
const Rect bounds(mLayer.getTransformedBounds());
|
|
int x = bounds.left;
|
|
int y = bounds.top;
|
|
int w = bounds.width();
|
|
int h = bounds.height();
|
|
|
|
// we need a lock here to protect "destroy"
|
|
Mutex::Autolock _l(mOverlaySourceLock);
|
|
if (mOverlay) {
|
|
overlay_control_device_t* overlay_dev = mOverlayDevice;
|
|
overlay_dev->setPosition(overlay_dev, mOverlay, x,y,w,h);
|
|
// we need to combine the layer orientation and the
|
|
// user-requested orientation.
|
|
Transform finalTransform = Transform(mOrientation) *
|
|
Transform(mLayer.getOrientation());
|
|
overlay_dev->setParameter(overlay_dev, mOverlay,
|
|
OVERLAY_TRANSFORM, finalTransform.getOrientation());
|
|
overlay_dev->commit(overlay_dev, mOverlay);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void LayerBuffer::OverlaySource::destroy()
|
|
{
|
|
// we need a lock here to protect "onVisibilityResolved"
|
|
Mutex::Autolock _l(mOverlaySourceLock);
|
|
if (mOverlay && mOverlayDevice) {
|
|
overlay_control_device_t* overlay_dev = mOverlayDevice;
|
|
overlay_dev->destroyOverlay(overlay_dev, mOverlay);
|
|
mOverlay = 0;
|
|
}
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
}; // namespace android
|