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Merge pull request #1261 from arandomhuman/damage-control

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Fix damage tracking for surfaces with transforms
This commit is contained in:
Drew DeVault 2018-11-04 14:31:17 +01:00 • committed by GitHub
commit d7b010024a
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 73 additions and 67 deletions
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33
include/wlr/types/wlr_surface.h
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@ -17,14 +17,14 @@
#include <wlr/types/wlr_output.h>
enum wlr_surface_state_field {
WLR_SURFACE_STATE_BUFFER = 1,
WLR_SURFACE_STATE_SURFACE_DAMAGE = 2,
WLR_SURFACE_STATE_BUFFER_DAMAGE = 4,
WLR_SURFACE_STATE_OPAQUE_REGION = 8,
WLR_SURFACE_STATE_INPUT_REGION = 16,
WLR_SURFACE_STATE_TRANSFORM = 32,
WLR_SURFACE_STATE_SCALE = 64,
WLR_SURFACE_STATE_FRAME_CALLBACK_LIST = 128,
WLR_SURFACE_STATE_BUFFER = 1 << 0,
WLR_SURFACE_STATE_SURFACE_DAMAGE = 1 << 1,
WLR_SURFACE_STATE_BUFFER_DAMAGE = 1 << 2,
WLR_SURFACE_STATE_OPAQUE_REGION = 1 << 3,
WLR_SURFACE_STATE_INPUT_REGION = 1 << 4,
WLR_SURFACE_STATE_TRANSFORM = 1 << 5,
WLR_SURFACE_STATE_SCALE = 1 << 6,
WLR_SURFACE_STATE_FRAME_CALLBACK_LIST = 1 << 7,
};
struct wlr_surface_state {
@ -32,7 +32,7 @@ struct wlr_surface_state {
struct wl_resource *buffer_resource;
int32_t dx, dy; // relative to previous position
pixman_region32_t surface_damage, buffer_damage;
pixman_region32_t surface_damage, buffer_damage; // clipped to bounds
pixman_region32_t opaque, input;
enum wl_output_transform transform;
int32_t scale;
@ -68,11 +68,12 @@ struct wlr_surface {
* The last commit's buffer damage, in buffer-local coordinates. This
* contains both the damage accumulated by the client via
* `wlr_surface_state.surface_damage` and `wlr_surface_state.buffer_damage`.
* If the buffer has changed its size or moved, the whole buffer is
* damaged.
* If the buffer has been resized, the whole buffer is damaged.
*
* This region needs to be scaled and transformed into output coordinates,
* just like the buffer's texture.
* just like the buffer's texture. In addition, if the buffer has shrunk the
* old size needs to be damaged and if the buffer has moved the old and new
* positions need to be damaged.
*/
pixman_region32_t buffer_damage;
/**
@ -234,4 +235,12 @@ struct wlr_surface *wlr_surface_from_resource(struct wl_resource *resource);
void wlr_surface_for_each_surface(struct wlr_surface *surface,
wlr_surface_iterator_func_t iterator, void *user_data);
/**
* Get the effective damage to the surface in terms of surface local
* coordinates. This includes damage induced by resizing and moving the
* surface. The damage is not expected to be bounded by the surface itself.
*/
void wlr_surface_get_effective_damage(struct wlr_surface *surface,
pixman_region32_t *damage);
#endif