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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 78d002b02c
commit baf012f6bc
3 changed files with 10 additions and 0 deletions
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7
libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.cpp
View file

@ -746,6 +746,13 @@ void OpenGLDisplayPlugin::present(const std::shared_ptr<RefreshRateController>&
}
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()) {
refreshRateController->clockEndTime();
internalPresent();

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

@ -206,6 +206,8 @@ protected:
QImage getScreenshot(float aspectRatio);
QImage getSecondaryCameraScreenshot();
bool _presentOnlyOnce = false;
private:
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) {
_context = c;
_presentOnlyOnce = true;
}
bool OpenXrDisplayPlugin::isSupported() const {