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xf86drmMode: add drmModeCloseFB()

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Add a wrapper for the new CLOSEFB IOCTL, to close a framebuffer
without implicitly disabling planes or CRTCs.

See https://lore.kernel.org/dri-devel/20231020101926.145327-2-contact@emersion.fr/

Signed-off-by: Simon Ser <contact@emersion.fr>
This commit is contained in:
Simon Ser 2023-10-27 13:58:12 +02:00
parent 7b60986640
commit 07f4948bfc
3 changed files with 18 additions and 0 deletions
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1
core-symbols.txt
View file

@ -104,6 +104,7 @@ drmModeAtomicGetCursor
drmModeAtomicMerge
drmModeAtomicSetCursor
drmModeAttachMode
drmModeCloseFB
drmModeConnectorGetPossibleCrtcs
drmModeConnectorSetProperty
drmModeCreateDumbBuffer

10
xf86drmMode.c
View file

@ -320,6 +320,16 @@ drm_public int drmModeRmFB(int fd, uint32_t bufferId)
return DRM_IOCTL(fd, DRM_IOCTL_MODE_RMFB, &bufferId);
}
drm_public int drmModeCloseFB(int fd, uint32_t buffer_id)
{
struct drm_mode_closefb closefb;
memclear(closefb);
closefb.fb_id = buffer_id;
return DRM_IOCTL(fd, DRM_IOCTL_MODE_CLOSEFB, &closefb);
}
drm_public drmModeFBPtr drmModeGetFB(int fd, uint32_t buf)
{
struct drm_mode_fb_cmd info;

7
xf86drmMode.h
View file

@ -314,6 +314,13 @@ int drmModeAddFB2WithModifiers(int fd, uint32_t width, uint32_t height,
*/
extern int drmModeRmFB(int fd, uint32_t bufferId);
/**
* Close a framebuffer.
*
* Same as drmModeRmFB(), except it doesn't implicitly disable planes and CRTCs.
*/
extern int drmModeCloseFB(int fd, uint32_t buffer_id);
/**
* Mark a region of a framebuffer as dirty.
*/