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backend/drm: clip FB damage

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The kernel complains when the damage exceeds the FB bounds:

    [73850.448326] i915 0000:00:02.0: [drm:drm_atomic_check_only] [PLANE:31:plane 1A] invalid damage clip 0 0 2147483647 2147483647

Make the DRM backend behave like the Wayland one and allow compositors
to damage (0, 0, INT32_MAX, INT32_MAX) to repaint everything without
needing to know the exact buffer size.

Closes: https://github.com/swaywm/sway/issues/7632
This commit is contained in:
Simon Ser 2023-06-12 12:13:21 +02:00 • committed by Kenny Levinsen
parent a09bb1314d
commit 4339c37f99
3 changed files with 34 additions and 15 deletions
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4
include/backend/drm/iface.h
View file

@ -3,6 +3,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <pixman.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
@ -10,6 +11,7 @@ struct wlr_drm_backend;
struct wlr_drm_connector;
struct wlr_drm_crtc;
struct wlr_drm_connector_state;
struct wlr_drm_fb;
// Used to provide atomic or legacy DRM functions
struct wlr_drm_interface {
@ -33,5 +35,7 @@ bool create_mode_blob(struct wlr_drm_backend *drm,
const struct wlr_drm_connector_state *state, uint32_t *blob_id);
bool create_gamma_lut_blob(struct wlr_drm_backend *drm,
size_t size, const uint16_t *lut, uint32_t *blob_id);
bool create_fb_damage_clips_blob(struct wlr_drm_backend *drm,
struct wlr_drm_fb *fb, const pixman_region32_t *damage, uint32_t *blob_id);
#endif