https://bugs.freedesktop.org/show_bug.cgi?id=90898
Bug ID: 90898
Summary: Provide DRM_MODE_FB_DIRTY_MAX_CLIPS in drm_mode.h
Product: DRI
Version: XOrg git
Hardware: x86 (IA32)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: libdrm
Assignee: dri-devel at lists.freedesktop.org
Reporter: lampersperger.andreas at heidenhain.de
When calling drmModeDirtyFB on linux, it fails when num_clips are more than
DRM_MODE_FB_DIRTY_MAX_CLIPS (value: 256). But there is no way to check this for
xf86-video-* drivers, because when including drm_mode.h, you get the drm_mode.h
from /usr/include/libdrm/drm_mode.h and not /usr/include/drm/drm_mode.h.
Please add
#define DRM_MODE_FB_DIRTY_MAX_CLIPS 256
to your drm_mode.h, to allow xf86-video-* drivers to check parameters before
calling drmModeDirtyFB(...).
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