itsmattkc
ceb70a1870
context More intuitive code flow and allows the user to undock the viewer (which forcibly destroys and recreates the context) and the viewer will handle creation of the new texture in said new context.
80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
#include "openglbackend.h"
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#include <QEventLoop>
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#include <QThread>
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#include "openglrenderfunctions.h"
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OpenGLBackend::OpenGLBackend(QObject *parent) :
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VideoRenderBackend(parent),
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proxy_(nullptr)
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{
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}
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OpenGLBackend::~OpenGLBackend()
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{
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Close();
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}
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bool OpenGLBackend::InitInternal()
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{
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if (!VideoRenderBackend::InitInternal()) {
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return false;
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}
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proxy_ = new OpenGLProxy();
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proxy_->SetParameters(params());
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QThread* proxy_thread = new QThread();
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proxy_thread->start(QThread::LowPriority);
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proxy_->moveToThread(proxy_thread);
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if (!proxy_->Init()) {
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proxy_thread->quit();
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proxy_thread->wait();
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delete proxy_thread;
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delete proxy_;
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return false;
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}
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// Initiate one thread per CPU core
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for (int i=0;i<threads().size();i++) {
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// Create one processor object for each thread
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OpenGLWorker* processor = new OpenGLWorker(frame_cache());
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processor->SetParameters(params());
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processors_.append(processor);
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connect(processor, &OpenGLWorker::RequestFrameToValue, proxy_, &OpenGLProxy::FrameToValue, Qt::BlockingQueuedConnection);
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connect(processor, &OpenGLWorker::RequestTextureToBuffer, proxy_, &OpenGLProxy::TextureToBuffer, Qt::BlockingQueuedConnection);
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connect(processor, &OpenGLWorker::RequestRunNodeAccelerated, proxy_, &OpenGLProxy::RunNodeAccelerated, Qt::BlockingQueuedConnection);
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}
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return true;
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}
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void OpenGLBackend::CloseInternal()
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{
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if (proxy_) {
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delete proxy_;
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proxy_ = nullptr;
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}
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VideoRenderBackend::CloseInternal();
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}
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bool OpenGLBackend::CompileInternal()
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{
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return true;
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}
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void OpenGLBackend::DecompileInternal()
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{
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}
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void OpenGLBackend::ParamsChangedEvent()
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{
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// If we're initiated, we need to recreate the texture. Otherwise this backend isn't active so it doesn't matter.
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if (IsInitiated()) {
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proxy_->SetParameters(params());
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}
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}
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