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X11: Add validation of RandR gamma ramp size

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This commit is contained in:
Camilla Löwy 2017-04-05 17:53:00 +02:00
parent 2226e60944
commit 66b16f1fc1
2 changed files with 8 additions and 0 deletions
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1
README.md
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@ -175,6 +175,7 @@ information on what to include when reporting a bug.
- [X11] Bugfix: XDND support had multiple non-conformance issues (#968) - [X11] Bugfix: XDND support had multiple non-conformance issues (#968)
- [X11] Bugfix: The RandR monitor path was disabled despite working RandR (#972) - [X11] Bugfix: The RandR monitor path was disabled despite working RandR (#972)
- [X11] Bugfix: IM-duplicated key events would leak at low polling rates (#747) - [X11] Bugfix: IM-duplicated key events would leak at low polling rates (#747)
- [X11] Bugfix: Gamma ramp setting via RandR did not validate ramp size
- [Linux] Bugfix: Event processing did not detect joystick disconnection (#932) - [Linux] Bugfix: Event processing did not detect joystick disconnection (#932)
- [Cocoa] Added support for Vulkan window surface creation via - [Cocoa] Added support for Vulkan window surface creation via
[MoltenVK](https://moltengl.com/moltenvk/) (#870) [MoltenVK](https://moltengl.com/moltenvk/) (#870)

7
src/x11_monitor.c
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@ -453,6 +453,13 @@ void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
{ {
if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken) if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
{ {
if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) != ramp->size)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Gamma ramp size must match current ramp size");
return;
}
XRRCrtcGamma* gamma = XRRAllocGamma(ramp->size); XRRCrtcGamma* gamma = XRRAllocGamma(ramp->size);
memcpy(gamma->red, ramp->red, ramp->size * sizeof(unsigned short)); memcpy(gamma->red, ramp->red, ramp->size * sizeof(unsigned short));