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backend/drm: clip FB damage
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:
parent
a09bb1314d
commit
4339c37f99
3 changed files with 34 additions and 15 deletions
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@ -143,6 +143,32 @@ bool create_gamma_lut_blob(struct wlr_drm_backend *drm,
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return true;
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}
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bool create_fb_damage_clips_blob(struct wlr_drm_backend *drm,
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struct wlr_drm_fb *fb, const pixman_region32_t *damage, uint32_t *blob_id) {
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if (!pixman_region32_not_empty(damage)) {
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*blob_id = 0;
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return true;
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}
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int width = fb->wlr_buf->width;
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int height = fb->wlr_buf->height;
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pixman_region32_t clipped;
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pixman_region32_init(&clipped);
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pixman_region32_intersect_rect(&clipped, damage, 0, 0, width, height);
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int rects_len;
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const pixman_box32_t *rects = pixman_region32_rectangles(&clipped, &rects_len);
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int ret = drmModeCreatePropertyBlob(drm->fd, rects, sizeof(*rects) * rects_len, blob_id);
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pixman_region32_fini(&clipped);
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if (ret != 0) {
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wlr_log_errno(WLR_ERROR, "Failed to create FB_DAMAGE_CLIPS property blob");
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return false;
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}
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return true;
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}
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static uint64_t max_bpc_for_format(uint32_t format) {
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switch (format) {
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case DRM_FORMAT_XRGB2101010:
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@ -271,15 +297,9 @@ static bool atomic_crtc_commit(struct wlr_drm_connector *conn,
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uint32_t fb_damage_clips = 0;
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if ((state->base->committed & WLR_OUTPUT_STATE_DAMAGE) &&
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pixman_region32_not_empty(&state->base->damage) &&
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crtc->primary->props.fb_damage_clips != 0) {
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int rects_len;
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const pixman_box32_t *rects =
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pixman_region32_rectangles(&state->base->damage, &rects_len);
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if (drmModeCreatePropertyBlob(drm->fd, rects,
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sizeof(*rects) * rects_len, &fb_damage_clips) != 0) {
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wlr_log_errno(WLR_ERROR, "Failed to create FB_DAMAGE_CLIPS property blob");
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}
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create_fb_damage_clips_blob(drm, state->primary_fb,
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&state->base->damage, &fb_damage_clips);
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}
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bool prev_vrr_enabled =
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@ -324,14 +324,9 @@ static bool crtc_commit(struct wlr_drm_connector *conn,
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uint32_t fb_damage_clips = 0;
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if ((state->base->committed & WLR_OUTPUT_STATE_DAMAGE) &&
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pixman_region32_not_empty(&state->base->damage) &&
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crtc->primary->props.fb_damage_clips != 0) {
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int rects_len;
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const pixman_box32_t *rects = pixman_region32_rectangles(&state->base->damage, &rects_len);
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if (drmModeCreatePropertyBlob(drm->fd, rects,
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sizeof(*rects) * rects_len, &fb_damage_clips) != 0) {
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wlr_log_errno(WLR_ERROR, "Failed to create FB_DAMAGE_CLIPS property blob");
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}
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create_fb_damage_clips_blob(drm, state->primary_fb,
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&state->base->damage, &fb_damage_clips);
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}
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bool prev_vrr_enabled =
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@ -3,6 +3,7 @@
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#include <stdbool.h>
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#include <stdint.h>
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#include <pixman.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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@ -10,6 +11,7 @@ struct wlr_drm_backend;
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struct wlr_drm_connector;
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struct wlr_drm_crtc;
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struct wlr_drm_connector_state;
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struct wlr_drm_fb;
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// Used to provide atomic or legacy DRM functions
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struct wlr_drm_interface {
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@ -33,5 +35,7 @@ bool create_mode_blob(struct wlr_drm_backend *drm,
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const struct wlr_drm_connector_state *state, uint32_t *blob_id);
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bool create_gamma_lut_blob(struct wlr_drm_backend *drm,
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size_t size, const uint16_t *lut, uint32_t *blob_id);
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bool create_fb_damage_clips_blob(struct wlr_drm_backend *drm,
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struct wlr_drm_fb *fb, const pixman_region32_t *damage, uint32_t *blob_id);
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#endif
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