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Run the present thread at highest priority

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This commit is contained in:
Brad Davis 2016-02-08 23:53:30 -08:00
parent 6a66d74e19
commit 2b127720f8
1 changed files with 8 additions and 1 deletions
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9
libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.cpp
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@ -28,6 +28,11 @@
#include <GLMHelpers.h> #include <GLMHelpers.h>
#if THREADED_PRESENT #if THREADED_PRESENT
// FIXME, for display plugins that don't block on something like vsync, just
// cap the present rate at 200
// const static unsigned int MAX_PRESENT_RATE = 200;
class PresentThread : public QThread, public Dependency { class PresentThread : public QThread, public Dependency {
using Mutex = std::mutex; using Mutex = std::mutex;
using Condition = std::condition_variable; using Condition = std::condition_variable;
@ -66,8 +71,10 @@ public:
_context->moveToThread(this); _context->moveToThread(this);
} }
virtual void run() override { virtual void run() override {
OpenGLDisplayPlugin* currentPlugin{ nullptr }; OpenGLDisplayPlugin* currentPlugin{ nullptr };
thread()->setPriority(QThread::HighestPriority);
Q_ASSERT(_context); Q_ASSERT(_context);
while (!_shutdown) { while (!_shutdown) {
if (_pendingMainThreadOperation) { if (_pendingMainThreadOperation) {
@ -450,4 +457,4 @@ void OpenGLDisplayPlugin::enableDeactivate() {
_uncustomized = true; _uncustomized = true;
_deactivateWait.notify_one(); _deactivateWait.notify_one();
} }
#endif #endif