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output: fix back buffer checks

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The back buffer is no longer set at commit time since 0556aa0c59
("output: rejigger attach/clear for back buffer").

Instead, check whether the buffer belongs to the output swapchain.
This is more robust.

Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3496
This commit is contained in:
Simon Ser 2022-09-21 16:16:53 +02:00
parent 800ea7d52d
commit 8e8b9a7217
4 changed files with 21 additions and 2 deletions
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2
include/types/wlr_output.h
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@ -8,6 +8,8 @@ void output_pending_resolution(struct wlr_output *output,
const struct wlr_output_state *state, int *width, int *height);
void output_state_attach_buffer(struct wlr_output_state *state,
struct wlr_buffer *buffer);
bool output_is_direct_scanout(struct wlr_output *output,
struct wlr_buffer *buffer);
struct wlr_drm_format *output_pick_format(struct wlr_output *output,
const struct wlr_drm_format_set *display_formats, uint32_t format);