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wayland: Add support for wl_surface.damage_buffer

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Implements support for the wl_surface.damage_buffer request, which
damages the buffer using buffer coordinate space.

https://bugzilla.gnome.org/show_bug.cgi?id=784080
This commit is contained in:
Jonas Ådahl 2017-06-05 20:08:04 +08:00
parent 41e22ab592
commit 9af6ec78ab
3 changed files with 62 additions and 18 deletions
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72
src/wayland/meta-wayland-surface.c
View File

@ -298,7 +298,8 @@ meta_wayland_surface_assign_role (MetaWaylandSurface *surface,
static void
surface_process_damage (MetaWaylandSurface *surface,
cairo_region_t *region)
cairo_region_t *surface_region,
cairo_region_t *buffer_region)
{
MetaWaylandBuffer *buffer = surface->buffer_ref.buffer;
unsigned int buffer_width;
@ -323,11 +324,15 @@ surface_process_damage (MetaWaylandSurface *surface,
.width = buffer_width / surface->scale,
.height = buffer_height / surface->scale,
};
cairo_region_intersect_rectangle (region, &surface_rect);
cairo_region_intersect_rectangle (surface_region, &surface_rect);
/* The damage region must be in the same coordinate space as the buffer,
* i.e. scaled with surface->scale. */
scaled_region = meta_region_scale (region, surface->scale);
scaled_region = meta_region_scale (surface_region, surface->scale);
/* Now add the buffer damage on top of the scaled damage region, as buffer
* damage is already in that scale. */
cairo_region_union (scaled_region, buffer_region);
/* First update the buffer. */
meta_wayland_buffer_process_damage (buffer, scaled_region);
@ -492,7 +497,8 @@ pending_state_init (MetaWaylandPendingState *state)
state->opaque_region = NULL;
state->opaque_region_set = FALSE;
state->damage = cairo_region_create ();
state->surface_damage = cairo_region_create ();
state->buffer_damage = cairo_region_create ();
wl_list_init (&state->frame_callback_list);
state->has_new_geometry = FALSE;
@ -505,7 +511,8 @@ pending_state_destroy (MetaWaylandPendingState *state)
{
MetaWaylandFrameCallback *cb, *next;
g_clear_pointer (&state->damage, cairo_region_destroy);
g_clear_pointer (&state->surface_damage, cairo_region_destroy);
g_clear_pointer (&state->buffer_damage, cairo_region_destroy);
g_clear_pointer (&state->input_region, cairo_region_destroy);
g_clear_pointer (&state->opaque_region, cairo_region_destroy);
@ -535,7 +542,8 @@ move_pending_state (MetaWaylandPendingState *from,
to->dx = from->dx;
to->dy = from->dy;
to->scale = from->scale;
to->damage = from->damage;
to->surface_damage = from->surface_damage;
to->buffer_damage = from->buffer_damage;
to->input_region = from->input_region;
to->input_region_set = from->input_region_set;
to->opaque_region = from->opaque_region;
@ -798,8 +806,11 @@ apply_pending_state (MetaWaylandSurface *surface,
if (pending->scale > 0)
surface->scale = pending->scale;
if (!cairo_region_is_empty (pending->damage))
surface_process_damage (surface, pending->damage);
if (!cairo_region_is_empty (pending->surface_damage) ||
!cairo_region_is_empty (pending->buffer_damage))
surface_process_damage (surface,
pending->surface_damage,
pending->buffer_damage);
surface->offset_x += pending->dx;
surface->offset_y += pending->dy;
@ -934,19 +945,25 @@ wl_surface_attach (struct wl_client *client,
static void
wl_surface_damage (struct wl_client *client,
struct wl_resource *surface_resource,
gint32 x,
gint32 y,
gint32 width,
gint32 height)
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
cairo_rectangle_int_t rectangle = { x, y, width, height };
cairo_rectangle_int_t rectangle;
/* X11 unmanaged window */
if (!surface)
return;
cairo_region_union_rectangle (surface->pending->damage, &rectangle);
rectangle = (cairo_rectangle_int_t) {
.x = x,
.y = y,
.width = width,
.height = height
};
cairo_region_union_rectangle (surface->pending->surface_damage, &rectangle);
}
static void
@ -1054,6 +1071,30 @@ wl_surface_set_buffer_scale (struct wl_client *client,
g_warning ("Trying to set invalid buffer_scale of %d\n", scale);
}
static void
wl_surface_damage_buffer (struct wl_client *client,
struct wl_resource *surface_resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
cairo_rectangle_int_t rectangle;
/* X11 unmanaged window */
if (!surface)
return;
rectangle = (cairo_rectangle_int_t) {
.x = x,
.y = y,
.width = width,
.height = height
};
cairo_region_union_rectangle (surface->pending->buffer_damage, &rectangle);
}
static const struct wl_surface_interface meta_wayland_wl_surface_interface = {
wl_surface_destroy,
wl_surface_attach,
@ -1063,7 +1104,8 @@ static const struct wl_surface_interface meta_wayland_wl_surface_interface = {
wl_surface_set_input_region,
wl_surface_commit,
wl_surface_set_buffer_transform,
wl_surface_set_buffer_scale
wl_surface_set_buffer_scale,
wl_surface_damage_buffer,
};
static gboolean

4
src/wayland/meta-wayland-surface.h
View File

@ -130,7 +130,9 @@ struct _MetaWaylandPendingState
int scale;
/* wl_surface.damage */
cairo_region_t *damage;
cairo_region_t *surface_damage;
/* wl_surface.damage_buffer */
cairo_region_t *buffer_damage;
cairo_region_t *input_region;
gboolean input_region_set;

2
src/wayland/meta-wayland-versions.h
View File

@ -35,7 +35,7 @@
/* #define META_WL_BUFFER_VERSION 1 */
/* Global/master objects (version exported by wl_registry and negotiated through bind) */
#define META_WL_COMPOSITOR_VERSION 3
#define META_WL_COMPOSITOR_VERSION 4
#define META_WL_DATA_DEVICE_MANAGER_VERSION 3
#define META_XDG_SHELL_VERSION 1
#define META_WL_SHELL_VERSION 1