Hello Thomas,
please include this patch (also attached as patch-file) to libdrm.
Thank you! Andreas ------------------------------------------------------------ mailto:lampersperger.andreas@heidenhain.de tel.: +49 8669 31 1791 ------------------------------------------------------------
DR. JOHANNES HEIDENHAIN GmbH Dr.-Johannes-Heidenhain-Str. 5 83301 Traunreut, Deutschland http://www.heidenhain.de
Author: Andreas Lampersperger Lampersperger.andreas@heidenhain.de
libdrm: Provide DRM_MODE_FB_DIRTY_MAX_CLIPS
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 .../include/libdrm/drm_mode.h and not .../include/drm/drm_mode.h. This commit adds the define DRM_MODE_FB_DIRTY_MAX_CLIPS also to libdrm/drm_mode.h, so applications/drivers linking against libdrm can use it to check the proper use of drmModeDirtyFB(..)
Index: libdrm-2.4.61/include/drm/drm_mode.h =================================================================== --- libdrm-2.4.61.orig/include/drm/drm_mode.h +++ libdrm-2.4.61/include/drm/drm_mode.h @@ -353,6 +353,8 @@ struct drm_mode_fb_cmd2 { #define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02 #define DRM_MODE_FB_DIRTY_FLAGS 0x03
+#define DRM_MODE_FB_DIRTY_MAX_CLIPS 256 + /* * Mark a region of a framebuffer as dirty. * ------------------------------------------------------------------------------------------------------ Registergericht: Traunstein / Registry Court: HRB 275 - Sitz / Head Office: Traunreut Aufsichtsratsvorsitzender / Chairman of Supervisory Board: Rainer Burkhard Geschäftsführung / Management Board: Thomas Sesselmann (Vorsitzender / Chairman), Michael Grimm, Hubert Ermer
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