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X11: Add validation of RandR gamma ramp size
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@ -175,6 +175,7 @@ information on what to include when reporting a bug.
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- [X11] Bugfix: XDND support had multiple non-conformance issues (#968)
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- [X11] Bugfix: The RandR monitor path was disabled despite working RandR (#972)
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- [X11] Bugfix: IM-duplicated key events would leak at low polling rates (#747)
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- [X11] Bugfix: Gamma ramp setting via RandR did not validate ramp size
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- [Linux] Bugfix: Event processing did not detect joystick disconnection (#932)
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- [Cocoa] Added support for Vulkan window surface creation via
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[MoltenVK](https://moltengl.com/moltenvk/) (#870)
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@ -453,6 +453,13 @@ void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
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{
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if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
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{
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if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) != ramp->size)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"X11: Gamma ramp size must match current ramp size");
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return;
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}
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XRRCrtcGamma* gamma = XRRAllocGamma(ramp->size);
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memcpy(gamma->red, ramp->red, ramp->size * sizeof(unsigned short));
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