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OpenGlDisplayPlugin: Add possibility to present frames only once.

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Don't present frame more than once in OpenXrDisplayPlugin.
This commit is contained in:
Lubosz Sarnecki 2024-03-16 15:55:42 +01:00 committed by Ada
parent be3e12b18c
commit d9cd2fd3d5
3 changed files with 10 additions and 0 deletions
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7
libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.cpp
View file

@ -745,6 +745,13 @@ void OpenGLDisplayPlugin::present(const std::shared_ptr<RefreshRateController>&
} }
gpu::Backend::freeGPUMemSize.set(gpu::gl::getFreeDedicatedMemory()); gpu::Backend::freeGPUMemSize.set(gpu::gl::getFreeDedicatedMemory());
// Drop current frame after presenting it once.
// This is required for the OpenXR frame cycle, since we call xrEndFrame after presenting.
// xrEndFrame must not be called multiple times.
if (_presentOnlyOnce) {
_currentFrame.reset();
}
} else if (alwaysPresent()) { } else if (alwaysPresent()) {
refreshRateController->clockEndTime(); refreshRateController->clockEndTime();
internalPresent(); internalPresent();

2
libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.h
View file

@ -205,6 +205,8 @@ protected:
QImage getScreenshot(float aspectRatio); QImage getScreenshot(float aspectRatio);
QImage getSecondaryCameraScreenshot(); QImage getSecondaryCameraScreenshot();
bool _presentOnlyOnce = false;
private: private:
static Setting::Handle<bool> _extraLinearToSRGBConversionSetting; static Setting::Handle<bool> _extraLinearToSRGBConversionSetting;
}; };

1
plugins/openxr/src/OpenXrDisplayPlugin.cpp
View file

@ -23,6 +23,7 @@ constexpr GLint XR_PREFERRED_COLOR_FORMAT = GL_SRGB8_ALPHA8;
OpenXrDisplayPlugin::OpenXrDisplayPlugin(std::shared_ptr<OpenXrContext> c) { OpenXrDisplayPlugin::OpenXrDisplayPlugin(std::shared_ptr<OpenXrContext> c) {
_context = c; _context = c;
_presentOnlyOnce = true;
} }
bool OpenXrDisplayPlugin::isSupported() const { bool OpenXrDisplayPlugin::isSupported() const {