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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "OpenGLRenderer"
#include <utils/Log.h>
#include "Layer.h"
#include "LayerRenderer.h"
#include "OpenGLRenderer.h"
#include "Caches.h"
namespace android {
namespace uirenderer {
Layer::Layer(const uint32_t layerWidth, const uint32_t layerHeight) {
mesh = NULL;
meshIndices = NULL;
meshElementCount = 0;
cacheable = true;
dirty = false;
textureLayer = false;
renderTarget = GL_TEXTURE_2D;
texture.width = layerWidth;
texture.height = layerHeight;
colorFilter = NULL;
deferredUpdateScheduled = false;
renderer = NULL;
displayList = NULL;
fbo = 0;
stencil = NULL;
debugDrawUpdate = false;
Caches::getInstance().resourceCache.incrementRefcount(this);
}
Layer::~Layer() {
if (mesh) delete mesh;
if (meshIndices) delete meshIndices;
if (colorFilter) Caches::getInstance().resourceCache.decrementRefcount(colorFilter);
removeFbo();
deleteTexture();
}
uint32_t Layer::computeIdealWidth(uint32_t layerWidth) {
return uint32_t(ceilf(layerWidth / float(LAYER_SIZE)) * LAYER_SIZE);
}
uint32_t Layer::computeIdealHeight(uint32_t layerHeight) {
return uint32_t(ceilf(layerHeight / float(LAYER_SIZE)) * LAYER_SIZE);
}
bool Layer::resize(const uint32_t width, const uint32_t height) {
uint32_t desiredWidth = computeIdealWidth(width);
uint32_t desiredHeight = computeIdealWidth(height);
if (desiredWidth <= getWidth() && desiredHeight <= getHeight()) {
return true;
}
uint32_t oldWidth = getWidth();
uint32_t oldHeight = getHeight();
setSize(desiredWidth, desiredHeight);
if (fbo) {
Caches::getInstance().activeTexture(0);
bindTexture();
allocateTexture(GL_RGBA, GL_UNSIGNED_BYTE);
if (glGetError() != GL_NO_ERROR) {
setSize(oldWidth, oldHeight);
return false;
}
}
if (stencil) {
stencil->bind();
stencil->resize(desiredWidth, desiredHeight);
if (glGetError() != GL_NO_ERROR) {
setSize(oldWidth, oldHeight);
return false;
}
}
return true;
}
void Layer::removeFbo(bool flush) {
if (stencil) {
GLuint previousFbo;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo);
if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, 0);
if (fbo != previousFbo) glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
Caches::getInstance().renderBufferCache.put(stencil);
stencil = NULL;
}
if (fbo) {
if (flush) LayerRenderer::flushLayer(this);
// If put fails the cache will delete the FBO
Caches::getInstance().fboCache.put(fbo);
fbo = 0;
}
}
void Layer::setPaint(SkPaint* paint) {
OpenGLRenderer::getAlphaAndModeDirect(paint, &alpha, &mode);
}
void Layer::setColorFilter(SkiaColorFilter* filter) {
if (colorFilter) {
Caches::getInstance().resourceCache.decrementRefcount(colorFilter);
}
colorFilter = filter;
if (colorFilter) {
Caches::getInstance().resourceCache.incrementRefcount(colorFilter);
}
}
}; // namespace uirenderer
}; // namespace android
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