3bbacf27c0
Bug #7146141 This change is needed to add a render buffer cache to avoid creating and destroying stencil buffers on every frame. This change also allows the renderer to use a 1 bit or 4 bit stencil buffer whenever possible. Finally this change fixes a bug introduced by a previous CL which causes the stencil buffer to not be updated in certain conditions. The fix relies on a new optional parameter in drawColorRects() that can be used to avoid performing a quickReject on rectangles generated by the clip region. Change-Id: I2f55a8e807009887b276a83cde9f53fd5c01199f
139 lines
3.8 KiB
C++
139 lines
3.8 KiB
C++
/*
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* Copyright (C) 2012 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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#define LOG_TAG "OpenGLRenderer"
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#include <utils/Log.h>
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#include "Layer.h"
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#include "LayerRenderer.h"
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#include "OpenGLRenderer.h"
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#include "Caches.h"
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namespace android {
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namespace uirenderer {
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Layer::Layer(const uint32_t layerWidth, const uint32_t layerHeight) {
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mesh = NULL;
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meshIndices = NULL;
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meshElementCount = 0;
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cacheable = true;
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dirty = false;
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textureLayer = false;
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renderTarget = GL_TEXTURE_2D;
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texture.width = layerWidth;
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texture.height = layerHeight;
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colorFilter = NULL;
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deferredUpdateScheduled = false;
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renderer = NULL;
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displayList = NULL;
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fbo = 0;
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stencil = NULL;
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debugDrawUpdate = false;
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Caches::getInstance().resourceCache.incrementRefcount(this);
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}
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Layer::~Layer() {
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if (mesh) delete mesh;
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if (meshIndices) delete meshIndices;
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if (colorFilter) Caches::getInstance().resourceCache.decrementRefcount(colorFilter);
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removeFbo();
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deleteTexture();
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}
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uint32_t Layer::computeIdealWidth(uint32_t layerWidth) {
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return uint32_t(ceilf(layerWidth / float(LAYER_SIZE)) * LAYER_SIZE);
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}
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uint32_t Layer::computeIdealHeight(uint32_t layerHeight) {
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return uint32_t(ceilf(layerHeight / float(LAYER_SIZE)) * LAYER_SIZE);
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}
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bool Layer::resize(const uint32_t width, const uint32_t height) {
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uint32_t desiredWidth = computeIdealWidth(width);
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uint32_t desiredHeight = computeIdealWidth(height);
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if (desiredWidth <= getWidth() && desiredHeight <= getHeight()) {
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return true;
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}
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uint32_t oldWidth = getWidth();
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uint32_t oldHeight = getHeight();
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setSize(desiredWidth, desiredHeight);
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if (fbo) {
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Caches::getInstance().activeTexture(0);
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bindTexture();
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allocateTexture(GL_RGBA, GL_UNSIGNED_BYTE);
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if (glGetError() != GL_NO_ERROR) {
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setSize(oldWidth, oldHeight);
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return false;
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}
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}
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if (stencil) {
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stencil->bind();
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stencil->resize(desiredWidth, desiredHeight);
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if (glGetError() != GL_NO_ERROR) {
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setSize(oldWidth, oldHeight);
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return false;
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}
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}
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return true;
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}
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void Layer::removeFbo(bool flush) {
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if (stencil) {
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// TODO: recycle & cache instead of simply deleting
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GLuint previousFbo;
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glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo);
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if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, fbo);
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glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
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if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
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delete stencil;
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stencil = NULL;
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}
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if (fbo) {
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if (flush) LayerRenderer::flushLayer(this);
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// If put fails the cache will delete the FBO
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Caches::getInstance().fboCache.put(fbo);
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fbo = 0;
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}
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}
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void Layer::setPaint(SkPaint* paint) {
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OpenGLRenderer::getAlphaAndModeDirect(paint, &alpha, &mode);
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}
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void Layer::setColorFilter(SkiaColorFilter* filter) {
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if (colorFilter) {
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Caches::getInstance().resourceCache.decrementRefcount(colorFilter);
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}
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colorFilter = filter;
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if (colorFilter) {
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Caches::getInstance().resourceCache.incrementRefcount(colorFilter);
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}
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}
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}; // namespace uirenderer
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}; // namespace android
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