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/*
* Copyright (C) 2014 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.
*/
#include "RenderState.h"
#include "renderthread/CanvasContext.h"
#include "renderthread/EglManager.h"
namespace android {
namespace uirenderer {
RenderState::RenderState(renderthread::RenderThread& thread)
: mRenderThread(thread)
, mCaches(nullptr)
, mViewportWidth(0)
, mViewportHeight(0)
, mFramebuffer(0) {
mThreadId = pthread_self();
}
RenderState::~RenderState() {
}
void RenderState::onGLContextCreated() {
// This is delayed because the first access of Caches makes GL calls
mCaches = &Caches::getInstance();
mCaches->init();
mCaches->setRenderState(this);
mCaches->textureCache.setAssetAtlas(&mAssetAtlas);
LOG_ALWAYS_FATAL_IF(scissor().isEnabled(), "scissor used before GL context created");
glDisable(GL_SCISSOR_TEST);
}
void RenderState::onGLContextDestroyed() {
/*
size_t size = mActiveLayers.size();
if (CC_UNLIKELY(size != 0)) {
ALOGE("Crashing, have %d contexts and %d layers at context destruction. isempty %d",
mRegisteredContexts.size(), size, mActiveLayers.empty());
mCaches->dumpMemoryUsage();
for (std::set<renderthread::CanvasContext*>::iterator cit = mRegisteredContexts.begin();
cit != mRegisteredContexts.end(); cit++) {
renderthread::CanvasContext* context = *cit;
ALOGE("Context: %p (root = %p)", context, context->mRootRenderNode.get());
ALOGE(" Prefeteched layers: %zu", context->mPrefetechedLayers.size());
for (std::set<RenderNode*>::iterator pit = context->mPrefetechedLayers.begin();
pit != context->mPrefetechedLayers.end(); pit++) {
(*pit)->debugDumpLayers(" ");
}
context->mRootRenderNode->debugDumpLayers(" ");
}
if (mActiveLayers.begin() == mActiveLayers.end()) {
ALOGE("set has become empty. wat.");
}
for (std::set<const Layer*>::iterator lit = mActiveLayers.begin();
lit != mActiveLayers.end(); lit++) {
const Layer* layer = *(lit);
ALOGE("Layer %p, state %d, texlayer %d, fbo %d, buildlayered %d",
layer, layer->state, layer->isTextureLayer(), layer->getFbo(), layer->wasBuildLayered);
}
LOG_ALWAYS_FATAL("%d layers have survived gl context destruction", size);
}
*/
mAssetAtlas.terminate();
}
void RenderState::setViewport(GLsizei width, GLsizei height) {
mViewportWidth = width;
mViewportHeight = height;
glViewport(0, 0, mViewportWidth, mViewportHeight);
}
void RenderState::getViewport(GLsizei* outWidth, GLsizei* outHeight) {
*outWidth = mViewportWidth;
*outHeight = mViewportHeight;
}
void RenderState::bindFramebuffer(GLuint fbo) {
if (mFramebuffer != fbo) {
mFramebuffer = fbo;
glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
}
}
void RenderState::invokeFunctor(Functor* functor, DrawGlInfo::Mode mode, DrawGlInfo* info) {
interruptForFunctorInvoke();
(*functor)(mode, info);
resumeFromFunctorInvoke();
}
void RenderState::interruptForFunctorInvoke() {
if (mCaches->currentProgram) {
if (mCaches->currentProgram->isInUse()) {
mCaches->currentProgram->remove();
mCaches->currentProgram = nullptr;
}
}
mCaches->resetActiveTexture();
mCaches->unbindMeshBuffer();
mCaches->unbindIndicesBuffer();
mCaches->resetVertexPointers();
mCaches->disableTexCoordsVertexArray();
debugOverdraw(false, false);
}
void RenderState::resumeFromFunctorInvoke() {
glViewport(0, 0, mViewportWidth, mViewportHeight);
glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
debugOverdraw(false, false);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
scissor().invalidate();
mCaches->activeTexture(0);
mCaches->resetBoundTextures();
mCaches->blend = true;
glEnable(GL_BLEND);
glBlendFunc(mCaches->lastSrcMode, mCaches->lastDstMode);
glBlendEquation(GL_FUNC_ADD);
}
void RenderState::debugOverdraw(bool enable, bool clear) {
if (mCaches->debugOverdraw && mFramebuffer == 0) {
if (clear) {
scissor().setEnabled(false);
mCaches->stencil.clear();
}
if (enable) {
mCaches->stencil.enableDebugWrite();
} else {
mCaches->stencil.disable();
}
}
}
void RenderState::requireGLContext() {
assertOnGLThread();
mRenderThread.eglManager().requireGlContext();
}
void RenderState::assertOnGLThread() {
pthread_t curr = pthread_self();
LOG_ALWAYS_FATAL_IF(!pthread_equal(mThreadId, curr), "Wrong thread!");
}
class DecStrongTask : public renderthread::RenderTask {
public:
DecStrongTask(VirtualLightRefBase* object) : mObject(object) {}
virtual void run() override {
mObject->decStrong(nullptr);
mObject = nullptr;
delete this;
}
private:
VirtualLightRefBase* mObject;
};
void RenderState::postDecStrong(VirtualLightRefBase* object) {
mRenderThread.queue(new DecStrongTask(object));
}
} /* namespace uirenderer */
} /* namespace android */
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