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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
View file

@ -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

11
rootston/output.c
View file

@ -708,16 +708,11 @@ static void damage_from_surface(struct wlr_surface *surface, int sx, int sy,
int center_x = box.x + box.width/2;
int center_y = box.y + box.height/2;
enum wl_output_transform transform =
wlr_output_transform_invert(surface->current.transform);
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_copy(&damage, &surface->buffer_damage);
wlr_region_transform(&damage, &damage, transform,
surface->current.buffer_width, surface->current.buffer_height);
wlr_region_scale(&damage, &damage,
wlr_output->scale / (float)surface->current.scale);
wlr_surface_get_effective_damage(surface, &damage);
wlr_region_scale(&damage, &damage, wlr_output->scale);
if (ceil(wlr_output->scale) > surface->current.scale) {
// When scaling up a surface, it'll become blurry so we need to
// expand the damage region

96
types/wlr_surface.c
View file

@ -7,6 +7,7 @@
#include <wlr/types/wlr_matrix.h>
#include <wlr/types/wlr_region.h>
#include <wlr/types/wlr_surface.h>
#include <wlr/types/wlr_output.h>
#include <wlr/util/log.h>
#include <wlr/util/region.h>
#include "util/signal.h"
@ -167,38 +168,28 @@ static void surface_state_finalize(struct wlr_surface *surface,
}
static void surface_update_damage(pixman_region32_t *buffer_damage,
struct wlr_surface_state *previous, struct wlr_surface_state *current) {
struct wlr_surface_state *current, struct wlr_surface_state *pending) {
pixman_region32_clear(buffer_damage);
if (current->buffer_width != previous->buffer_width ||
current->buffer_height != previous->buffer_height ||
current->dx != 0 || current->dy != 0) {
// Damage the whole surface on resize or move
int prev_x = -current->dx;
int prev_y = -current->dy;
if ((previous->transform & WL_OUTPUT_TRANSFORM_90) != 0) {
int tmp = prev_x;
prev_x = prev_y;
prev_y = tmp;
}
pixman_region32_union_rect(buffer_damage, buffer_damage,
prev_x * previous->scale, prev_y * previous->scale,
previous->buffer_width, previous->buffer_height);
if (pending->width != current->width ||
pending->height != current->height) {
// Damage the whole buffer on resize
pixman_region32_union_rect(buffer_damage, buffer_damage, 0, 0,
current->buffer_width, current->buffer_height);
pending->buffer_width, pending->buffer_height);
} else {
// Copy over surface damage + buffer damage
pixman_region32_union(buffer_damage, buffer_damage,
&current->buffer_damage);
pixman_region32_t surface_damage;
pixman_region32_init(&surface_damage);
pixman_region32_copy(&surface_damage, &current->surface_damage);
pixman_region32_copy(&surface_damage, &pending->surface_damage);
wlr_region_transform(&surface_damage, &surface_damage,
current->transform, current->buffer_width, current->buffer_height);
wlr_region_scale(&surface_damage, &surface_damage, current->scale);
pixman_region32_union(buffer_damage, buffer_damage, &surface_damage);
wlr_output_transform_invert(pending->transform),
pending->width, pending->height);
wlr_region_scale(&surface_damage, &surface_damage, pending->scale);
pixman_region32_union(buffer_damage,
&pending->buffer_damage, &surface_damage);
pixman_region32_fini(&surface_damage);
}
}
@ -297,29 +288,8 @@ static void surface_apply_damage(struct wlr_surface *surface) {
}
if (surface->buffer != NULL && surface->buffer->released) {
pixman_region32_t damage;
pixman_region32_init(&damage);
pixman_region32_copy(&damage, &surface->current.buffer_damage);
pixman_region32_t surface_damage;
pixman_region32_init(&surface_damage);
pixman_region32_copy(&surface_damage, &surface->current.surface_damage);
wlr_region_transform(&surface_damage, &surface_damage,
surface->current.transform,
surface->current.buffer_width, surface->current.buffer_height);
wlr_region_scale(&surface_damage, &surface_damage,
surface->current.scale);
pixman_region32_union(&damage, &damage, &surface_damage);
pixman_region32_fini(&surface_damage);
pixman_region32_intersect_rect(&damage, &damage, 0, 0,
surface->current.buffer_width, surface->current.buffer_height);
struct wlr_buffer *updated_buffer =
wlr_buffer_apply_damage(surface->buffer, resource, &damage);
pixman_region32_fini(&damage);
struct wlr_buffer *updated_buffer = wlr_buffer_apply_damage(
surface->buffer, resource, &surface->buffer_damage);
if (updated_buffer != NULL) {
surface->buffer = updated_buffer;
return;
@ -1055,3 +1025,35 @@ void wlr_surface_get_extends(struct wlr_surface *surface, struct wlr_box *box) {
box->width = acc.max_x - acc.min_x;
box->height = acc.max_y - acc.min_y;
}
void wlr_surface_get_effective_damage(struct wlr_surface *surface,
pixman_region32_t *damage) {
pixman_region32_clear(damage);
// Transform and copy the buffer damage in terms of surface coordinates.
wlr_region_transform(damage, &surface->buffer_damage,
surface->current.transform, surface->current.buffer_width,
surface->current.buffer_height);
wlr_region_scale(damage, damage, 1.0 / (float)surface->current.scale);
// On resize, damage the previous bounds of the surface. The current bounds
// have already been damaged in surface_update_damage.
if (surface->previous.width > surface->current.width ||
surface->previous.height > surface->current.height) {
pixman_region32_union_rect(damage, damage, 0, 0,
surface->previous.width, surface->previous.height);
}
// On move, damage where the surface was with its old dimensions.
if (surface->current.dx != 0 || surface->current.dy != 0) {
int prev_x = -surface->current.dx;
int prev_y = -surface->current.dy;
if ((surface->previous.transform & WL_OUTPUT_TRANSFORM_90) != 0) {
int temp = prev_x;
prev_x = prev_y;
prev_y = temp;
}
pixman_region32_union_rect(damage, damage, prev_x, prev_y,
surface->previous.width, surface->previous.height);
}
}