132 lines
4.5 KiB
C++
132 lines
4.5 KiB
C++
/*
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* Copyright (C) 2014 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 "DeferredLayerUpdater.h"
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#include "OpenGLRenderer.h"
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#include "LayerRenderer.h"
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#include "renderthread/EglManager.h"
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#include "renderthread/RenderTask.h"
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namespace android {
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namespace uirenderer {
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DeferredLayerUpdater::DeferredLayerUpdater(Layer* layer)
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: mSurfaceTexture(nullptr)
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, mTransform(nullptr)
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, mNeedsGLContextAttach(false)
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, mUpdateTexImage(false)
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, mLayer(layer)
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, mCaches(Caches::getInstance()) {
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mWidth = mLayer->layer.getWidth();
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mHeight = mLayer->layer.getHeight();
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mBlend = mLayer->isBlend();
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mColorFilter = SkSafeRef(mLayer->getColorFilter());
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mAlpha = mLayer->getAlpha();
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mMode = mLayer->getMode();
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}
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DeferredLayerUpdater::~DeferredLayerUpdater() {
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SkSafeUnref(mColorFilter);
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setTransform(nullptr);
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mLayer->postDecStrong();
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mLayer = nullptr;
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}
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void DeferredLayerUpdater::setPaint(const SkPaint* paint) {
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mAlpha = PaintUtils::getAlphaDirect(paint);
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mMode = PaintUtils::getXfermodeDirect(paint);
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SkColorFilter* colorFilter = (paint) ? paint->getColorFilter() : nullptr;
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SkRefCnt_SafeAssign(mColorFilter, colorFilter);
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}
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void DeferredLayerUpdater::apply() {
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// These properties are applied the same to both layer types
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mLayer->setColorFilter(mColorFilter);
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mLayer->setAlpha(mAlpha, mMode);
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if (mSurfaceTexture.get()) {
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if (mNeedsGLContextAttach) {
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mNeedsGLContextAttach = false;
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mSurfaceTexture->attachToContext(mLayer->getTextureId());
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}
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if (mUpdateTexImage) {
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mUpdateTexImage = false;
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doUpdateTexImage();
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}
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if (mTransform) {
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mLayer->getTransform().load(*mTransform);
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setTransform(nullptr);
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}
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}
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}
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void DeferredLayerUpdater::doUpdateTexImage() {
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if (mSurfaceTexture->updateTexImage() == NO_ERROR) {
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float transform[16];
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int64_t frameNumber = mSurfaceTexture->getFrameNumber();
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// If the GLConsumer queue is in synchronous mode, need to discard all
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// but latest frame, using the frame number to tell when we no longer
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// have newer frames to target. Since we can't tell which mode it is in,
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// do this unconditionally.
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int dropCounter = 0;
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while (mSurfaceTexture->updateTexImage() == NO_ERROR) {
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int64_t newFrameNumber = mSurfaceTexture->getFrameNumber();
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if (newFrameNumber == frameNumber) break;
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frameNumber = newFrameNumber;
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dropCounter++;
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}
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bool forceFilter = false;
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sp<GraphicBuffer> buffer = mSurfaceTexture->getCurrentBuffer();
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if (buffer != nullptr) {
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// force filtration if buffer size != layer size
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forceFilter = mWidth != static_cast<int>(buffer->getWidth())
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|| mHeight != static_cast<int>(buffer->getHeight());
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}
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#if DEBUG_RENDERER
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if (dropCounter > 0) {
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RENDERER_LOGD("Dropped %d frames on texture layer update", dropCounter);
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}
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#endif
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mSurfaceTexture->getTransformMatrix(transform);
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GLenum renderTarget = mSurfaceTexture->getCurrentTextureTarget();
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LOG_ALWAYS_FATAL_IF(renderTarget != GL_TEXTURE_2D && renderTarget != GL_TEXTURE_EXTERNAL_OES,
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"doUpdateTexImage target %x, 2d %x, EXT %x",
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renderTarget, GL_TEXTURE_2D, GL_TEXTURE_EXTERNAL_OES);
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LayerRenderer::updateTextureLayer(mLayer, mWidth, mHeight,
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!mBlend, forceFilter, renderTarget, transform);
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}
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}
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void DeferredLayerUpdater::detachSurfaceTexture() {
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if (mSurfaceTexture.get()) {
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status_t err = mSurfaceTexture->detachFromContext();
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if (err != 0) {
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// TODO: Elevate to fatal exception
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ALOGE("Failed to detach SurfaceTexture from context %d", err);
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}
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mSurfaceTexture = nullptr;
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mLayer->clearTexture();
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}
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}
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} /* namespace uirenderer */
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} /* namespace android */
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