#include "config.h"
-#include "gdkconfig.h"
-
#include "gdkcairocontext-wayland.h"
+#include "gdkprivate-wayland.h"
+
+#include "gdkinternals.h"
+
+static const cairo_user_data_key_t gdk_wayland_cairo_context_key;
+static const cairo_user_data_key_t gdk_wayland_cairo_region_key;
+
G_DEFINE_TYPE (GdkWaylandCairoContext, gdk_wayland_cairo_context, GDK_TYPE_CAIRO_CONTEXT)
+static void
+gdk_wayland_cairo_context_surface_add_region (cairo_surface_t *surface,
+ const cairo_region_t *region)
+{
+ cairo_region_t *surface_region;
+
+ surface_region = cairo_surface_get_user_data (surface, &gdk_wayland_cairo_region_key);
+ if (surface_region == NULL)
+ {
+ surface_region = cairo_region_copy (region);
+ cairo_surface_set_user_data (surface,
+ &gdk_wayland_cairo_region_key,
+ surface_region,
+ (cairo_destroy_func_t) cairo_region_destroy);
+ }
+ else
+ {
+ cairo_region_union (surface_region, region);
+ }
+}
+
+static void
+gdk_wayland_cairo_context_surface_clear_region (cairo_surface_t *surface)
+{
+ cairo_surface_set_user_data (surface, &gdk_wayland_cairo_region_key, NULL, NULL);
+}
+
+static const cairo_region_t *
+gdk_wayland_cairo_context_surface_get_region (cairo_surface_t *surface)
+{
+ return cairo_surface_get_user_data (surface, &gdk_wayland_cairo_region_key);
+}
+
+static GdkWaylandCairoContext *
+gdk_wayland_cairo_context_get_from_surface (cairo_surface_t *surface)
+{
+ return cairo_surface_get_user_data (surface, &gdk_wayland_cairo_context_key);
+}
+
+static void
+gdk_wayland_cairo_context_add_surface (GdkWaylandCairoContext *self,
+ cairo_surface_t *surface)
+{
+ cairo_surface_reference (surface);
+ cairo_surface_set_user_data (surface, &gdk_wayland_cairo_context_key, self, NULL);
+
+ self->surfaces = g_slist_prepend (self->surfaces, surface);
+}
+
+static void
+gdk_wayland_cairo_context_remove_surface (GdkWaylandCairoContext *self,
+ cairo_surface_t *surface)
+{
+ self->surfaces = g_slist_remove (self->surfaces, surface);
+
+ cairo_surface_set_user_data (surface, &gdk_wayland_cairo_context_key, NULL, NULL);
+ cairo_surface_destroy (surface);
+}
+
+static void
+gdk_wayland_cairo_context_buffer_release (void *_data,
+ struct wl_buffer *wl_buffer)
+{
+ cairo_surface_t *cairo_surface = _data;
+ GdkWaylandCairoContext *self = gdk_wayland_cairo_context_get_from_surface (cairo_surface);
+
+ /* context was destroyed before compositor released this buffer */
+ if (self == NULL)
+ return;
+
+ /* Cache one surface for reuse when drawing */
+ if (self->cached_surface == NULL)
+ {
+ self->cached_surface = cairo_surface;
+ return;
+ }
+
+ /* Get rid of all the extra ones */
+ gdk_wayland_cairo_context_remove_surface (self, cairo_surface);
+}
+
+static const struct wl_buffer_listener buffer_listener = {
+ gdk_wayland_cairo_context_buffer_release
+};
+
+static cairo_surface_t *
+gdk_wayland_cairo_context_create_surface (GdkWaylandCairoContext *self)
+{
+ GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (gdk_draw_context_get_display (GDK_DRAW_CONTEXT (self)));
+ GdkSurface *surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (self));
+ cairo_surface_t *cairo_surface;
+ struct wl_buffer *buffer;
+ cairo_region_t *region;
+ int width, height;
+
+ width = gdk_surface_get_width (surface);
+ height = gdk_surface_get_height (surface);
+ cairo_surface = _gdk_wayland_display_create_shm_surface (display_wayland,
+ width, height,
+ gdk_surface_get_scale_factor (surface));
+ buffer = _gdk_wayland_shm_surface_get_wl_buffer (cairo_surface);
+ wl_buffer_add_listener (buffer, &buffer_listener, cairo_surface);
+ gdk_wayland_cairo_context_add_surface (self, cairo_surface);
+
+ region = cairo_region_create_rectangle (&(cairo_rectangle_int_t) { 0, 0, width, height });
+ gdk_wayland_cairo_context_surface_add_region (cairo_surface, region);
+ cairo_region_destroy (region);
+
+ return cairo_surface;
+}
+
+static void
+gdk_wayland_cairo_context_begin_frame (GdkDrawContext *draw_context,
+ cairo_region_t *region)
+{
+ GdkWaylandCairoContext *self = GDK_WAYLAND_CAIRO_CONTEXT (draw_context);
+ const cairo_region_t *surface_region;
+ GSList *l;
+ cairo_t *cr;
+
+ if (self->cached_surface)
+ self->paint_surface = g_steal_pointer (&self->cached_surface);
+ else
+ self->paint_surface = gdk_wayland_cairo_context_create_surface (self);
+
+ surface_region = gdk_wayland_cairo_context_surface_get_region (self->paint_surface);
+ if (surface_region)
+ cairo_region_union (region, surface_region);
+
+ for (l = self->surfaces; l; l = l->next)
+ {
+ gdk_wayland_cairo_context_surface_add_region (l->data, region);
+ }
+
+ /* clear the repaint area */
+ cr = cairo_create (self->paint_surface);
+ cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
+ gdk_cairo_region (cr, region);
+ cairo_fill (cr);
+ cairo_destroy (cr);
+}
+
+static void
+gdk_wayland_cairo_context_end_frame (GdkDrawContext *draw_context,
+ cairo_region_t *painted,
+ cairo_region_t *damage)
+{
+ GdkWaylandCairoContext *self = GDK_WAYLAND_CAIRO_CONTEXT (draw_context);
+ GdkSurface *surface = gdk_draw_context_get_surface (draw_context);
+
+ gdk_wayland_surface_attach_image (surface, self->paint_surface, painted);
+ gdk_wayland_surface_sync (surface);
+
+ gdk_wayland_cairo_context_surface_clear_region (self->paint_surface);
+ self->paint_surface = NULL;
+}
+
+static void
+gdk_wayland_cairo_context_clear_all_cairo_surfaces (GdkWaylandCairoContext *self)
+{
+ self->cached_surface = NULL;
+ while (self->surfaces)
+ gdk_wayland_cairo_context_remove_surface (self, self->surfaces->data);
+}
+
+static void
+gdk_wayland_cairo_context_surface_resized (GdkDrawContext *draw_context)
+{
+ GdkWaylandCairoContext *self = GDK_WAYLAND_CAIRO_CONTEXT (draw_context);
+
+ gdk_wayland_cairo_context_clear_all_cairo_surfaces (self);
+}
+
+static cairo_t *
+gdk_wayland_cairo_context_cairo_create (GdkCairoContext *context)
+{
+ GdkWaylandCairoContext *self = GDK_WAYLAND_CAIRO_CONTEXT (context);
+ cairo_t *cr;
+
+ if (self->paint_surface == NULL)
+ return NULL;
+
+ cr = cairo_create (self->paint_surface);
+ gdk_cairo_region (cr, gdk_wayland_cairo_context_surface_get_region (self->paint_surface));
+ cairo_clip (cr);
+
+ return cr;
+}
+
+static void
+gdk_wayland_cairo_context_dispose (GObject *object)
+{
+ GdkWaylandCairoContext *self = GDK_WAYLAND_CAIRO_CONTEXT (object);
+
+ gdk_wayland_cairo_context_clear_all_cairo_surfaces (self);
+
+ G_OBJECT_CLASS (gdk_wayland_cairo_context_parent_class)->dispose (object);
+}
+
static void
gdk_wayland_cairo_context_class_init (GdkWaylandCairoContextClass *klass)
{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ GdkDrawContextClass *draw_context_class = GDK_DRAW_CONTEXT_CLASS (klass);
+ GdkCairoContextClass *cairo_context_class = GDK_CAIRO_CONTEXT_CLASS (klass);
+
+ gobject_class->dispose = gdk_wayland_cairo_context_dispose;
+
+ draw_context_class->begin_frame = gdk_wayland_cairo_context_begin_frame;
+ draw_context_class->end_frame = gdk_wayland_cairo_context_end_frame;
+ draw_context_class->surface_resized = gdk_wayland_cairo_context_surface_resized;
+
+ cairo_context_class->cairo_create = gdk_wayland_cairo_context_cairo_create;
}
static void
unsigned int initial_configure_received : 1;
unsigned int mapped : 1;
unsigned int use_custom_surface : 1;
- unsigned int pending_buffer_attached : 1;
unsigned int pending_commit : 1;
unsigned int awaiting_frame : 1;
GdkSurfaceTypeHint hint;
GdkSurface *popup_parent;
PositionMethod position_method;
- cairo_surface_t *staging_cairo_surface;
- cairo_surface_t *committed_cairo_surface;
- cairo_surface_t *backfill_cairo_surface;
-
int pending_buffer_offset_x;
int pending_buffer_offset_y;
cairo_region_t *input_region;
gboolean input_region_dirty;
- cairo_region_t *staged_updates_region;
-
int saved_width;
int saved_height;
g_list_prepend (display_wayland->orphan_dialogs, surface);
}
-static void
-drop_cairo_surfaces (GdkSurface *surface)
-{
- GdkSurfaceImplWayland *impl = GDK_SURFACE_IMPL_WAYLAND (surface->impl);
-
- g_clear_pointer (&impl->staging_cairo_surface, cairo_surface_destroy);
- g_clear_pointer (&impl->backfill_cairo_surface, cairo_surface_destroy);
-
- /* We nullify this so if a buffer release comes in later, we won't
- * try to reuse that buffer since it's no longer suitable
- */
- impl->committed_cairo_surface = NULL;
-}
-
static void
_gdk_wayland_surface_save_size (GdkSurface *surface)
{
(impl->scale == scale))
return;
- drop_cairo_surfaces (surface);
-
surface->width = width;
surface->height = height;
impl->scale = scale;
}
}
-static void
-read_back_cairo_surface (GdkSurface *surface)
-{
- GdkSurfaceImplWayland *impl = GDK_SURFACE_IMPL_WAYLAND (surface->impl);
- cairo_t *cr;
- cairo_region_t *paint_region = NULL;
-
- if (!impl->backfill_cairo_surface)
- goto out;
-
- paint_region = cairo_region_create_rectangle (&(cairo_rectangle_int_t) { 0, 0, surface->width, surface->height });
- cairo_region_subtract (paint_region, impl->staged_updates_region);
-
- if (cairo_region_is_empty (paint_region))
- goto out;
-
- cr = cairo_create (impl->staging_cairo_surface);
- cairo_set_source_surface (cr, impl->backfill_cairo_surface, 0, 0);
- gdk_cairo_region (cr, paint_region);
- cairo_clip (cr);
- cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
- cairo_paint (cr);
- cairo_destroy (cr);
- cairo_surface_flush (impl->staging_cairo_surface);
-
-out:
- g_clear_pointer (&paint_region, cairo_region_destroy);
- g_clear_pointer (&impl->staged_updates_region, cairo_region_destroy);
- g_clear_pointer (&impl->backfill_cairo_surface, cairo_surface_destroy);
-}
-
static void
frame_callback (void *data,
struct wl_callback *callback,
gdk_wayland_surface_request_frame (surface);
- /* Before we commit a new buffer, make sure we've backfilled
- * undrawn parts from any old committed buffer
- */
- if (impl->pending_buffer_attached)
- read_back_cairo_surface (surface);
-
/* From this commit forward, we can't write to the buffer,
* it's "live". In the future, if we need to stage more changes
* we have to allocate a new staging buffer and draw to it instead.
*/
wl_surface_commit (impl->display_server.wl_surface);
- if (impl->pending_buffer_attached)
- impl->committed_cairo_surface = g_steal_pointer (&impl->staging_cairo_surface);
-
- impl->pending_buffer_attached = FALSE;
impl->pending_commit = FALSE;
g_signal_emit (impl, signals[COMMITTED], 0);
g_signal_connect (frame_clock, "after-paint", G_CALLBACK (on_frame_clock_after_paint), surface);
}
-static void
-gdk_wayland_surface_attach_image (GdkSurface *surface)
+void
+gdk_wayland_surface_attach_image (GdkSurface *surface,
+ cairo_surface_t *cairo_surface,
+ const cairo_region_t *damage)
{
- GdkWaylandDisplay *display;
GdkSurfaceImplWayland *impl = GDK_SURFACE_IMPL_WAYLAND (surface->impl);
+ GdkWaylandDisplay *display;
+ cairo_rectangle_int_t rect;
+ int i, n;
if (GDK_SURFACE_DESTROYED (surface))
return;
- g_assert (_gdk_wayland_is_shm_surface (impl->staging_cairo_surface));
+ g_assert (_gdk_wayland_is_shm_surface (cairo_surface));
/* Attach this new buffer to the surface */
wl_surface_attach (impl->display_server.wl_surface,
- _gdk_wayland_shm_surface_get_wl_buffer (impl->staging_cairo_surface),
+ _gdk_wayland_shm_surface_get_wl_buffer (cairo_surface),
impl->pending_buffer_offset_x,
impl->pending_buffer_offset_y);
impl->pending_buffer_offset_x = 0;
if (display->compositor_version >= WL_SURFACE_HAS_BUFFER_SCALE)
wl_surface_set_buffer_scale (impl->display_server.wl_surface, impl->scale);
- impl->pending_buffer_attached = TRUE;
- impl->pending_commit = TRUE;
-}
-
-static const cairo_user_data_key_t gdk_wayland_surface_cairo_key;
-
-static void
-buffer_release_callback (void *_data,
- struct wl_buffer *wl_buffer)
-{
- cairo_surface_t *cairo_surface = _data;
- GdkSurfaceImplWayland *impl = cairo_surface_get_user_data (cairo_surface, &gdk_wayland_surface_cairo_key);
-
- g_return_if_fail (GDK_IS_SURFACE_IMPL_WAYLAND (impl));
-
- /* The released buffer isn't the latest committed one, we have no further
- * use for it, so clean it up.
- */
- if (impl->committed_cairo_surface != cairo_surface)
- {
- /* If this fails, then the surface buffer got reused before it was
- * released from the compositor
- */
- g_warn_if_fail (impl->staging_cairo_surface != cairo_surface);
-
- cairo_surface_destroy (cairo_surface);
- return;
- }
-
- if (impl->staged_updates_region != NULL)
- {
- /* If this fails, then we're tracking staged updates on a staging surface
- * that doesn't exist.
- */
- g_warn_if_fail (impl->staging_cairo_surface != NULL);
-
- /* If we've staged updates into a new buffer before the release for this
- * buffer came in, then we can't reuse this buffer, so unref it. It may still
- * be alive as a readback buffer though (via impl->backfill_cairo_surface).
- *
- * It's possible a staging surface was allocated but no updates were staged.
- * If that happened, clean up that staging surface now, since the old commit
- * buffer is available again, and reusing the old commit buffer for future
- * updates will save having to do a read back later.
- */
- if (!cairo_region_is_empty (impl->staged_updates_region))
- {
- g_clear_pointer (&impl->committed_cairo_surface, cairo_surface_destroy);
- return;
- }
- else
- {
- g_clear_pointer (&impl->staged_updates_region, cairo_region_destroy);
- g_clear_pointer (&impl->staging_cairo_surface, cairo_surface_destroy);
- }
- }
-
- /* Release came in, we haven't done any interim updates, so we can just use
- * the old committed buffer again.
- */
- impl->staging_cairo_surface = g_steal_pointer (&impl->committed_cairo_surface);
-}
-
-static const struct wl_buffer_listener buffer_listener = {
- buffer_release_callback
-};
-
-static void
-gdk_wayland_surface_ensure_cairo_surface (GdkSurface *surface)
-{
- GdkSurfaceImplWayland *impl = GDK_SURFACE_IMPL_WAYLAND (surface->impl);
-
- /* If we are drawing using OpenGL then we only need a logical 1x1 surface. */
- if (impl->display_server.egl_window)
- {
- if (impl->staging_cairo_surface &&
- _gdk_wayland_is_shm_surface (impl->staging_cairo_surface))
- g_clear_pointer (&impl->staging_cairo_surface, cairo_surface_destroy);
-
- if (!impl->staging_cairo_surface)
- {
- impl->staging_cairo_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
- impl->scale,
- impl->scale);
- cairo_surface_set_device_scale (impl->staging_cairo_surface,
- impl->scale, impl->scale);
- }
- }
- else if (!impl->staging_cairo_surface)
+ n = cairo_region_num_rectangles (damage);
+ for (i = 0; i < n; i++)
{
- GdkWaylandDisplay *display_wayland = GDK_WAYLAND_DISPLAY (gdk_surface_get_display (impl->wrapper));
- struct wl_buffer *buffer;
-
- impl->staging_cairo_surface = _gdk_wayland_display_create_shm_surface (display_wayland,
- impl->wrapper->width,
- impl->wrapper->height,
- impl->scale);
- cairo_surface_set_user_data (impl->staging_cairo_surface,
- &gdk_wayland_surface_cairo_key,
- g_object_ref (impl),
- (cairo_destroy_func_t)
- g_object_unref);
- buffer = _gdk_wayland_shm_surface_get_wl_buffer (impl->staging_cairo_surface);
- wl_buffer_add_listener (buffer, &buffer_listener, impl->staging_cairo_surface);
+ cairo_region_get_rectangle (damage, i, &rect);
+ wl_surface_damage (impl->display_server.wl_surface, rect.x, rect.y, rect.width, rect.height);
}
-}
-
-/* The cairo surface returned here uses a memory segment that's shared
- * with the display server. This is not a temporary buffer that gets
- * copied to the display server, but the actual buffer the display server
- * will ultimately end up sending to the GPU. At the time this happens
- * impl->committed_cairo_surface gets set to impl->staging_cairo_surface, and
- * impl->staging_cairo_surface gets nullified.
- */
-static cairo_surface_t *
-gdk_wayland_surface_ref_cairo_surface (GdkSurface *surface)
-{
- GdkSurfaceImplWayland *impl = GDK_SURFACE_IMPL_WAYLAND (surface->impl);
-
- if (GDK_SURFACE_DESTROYED (impl->wrapper))
- return NULL;
-
- gdk_wayland_surface_ensure_cairo_surface (surface);
-
- cairo_surface_reference (impl->staging_cairo_surface);
-
- return impl->staging_cairo_surface;
-}
-
-static gboolean
-gdk_surface_impl_wayland_begin_paint (GdkSurface *surface)
-{
- gdk_wayland_surface_ensure_cairo_surface (surface);
-
- return FALSE;
-}
-
-static void
-gdk_surface_impl_wayland_end_paint (GdkSurface *surface)
-{
- GdkSurfaceImplWayland *impl = GDK_SURFACE_IMPL_WAYLAND (surface->impl);
- cairo_rectangle_int_t rect;
- int i, n;
-
- if (impl->staging_cairo_surface &&
- _gdk_wayland_is_shm_surface (impl->staging_cairo_surface) &&
- !cairo_region_is_empty (surface->current_paint.region))
- {
- gdk_wayland_surface_attach_image (surface);
-
- /* If there's a committed buffer pending, then track which
- * updates are staged until the next frame, so we can back
- * fill the unstaged parts of the staging buffer with the
- * last frame.
- */
- if (impl->committed_cairo_surface != NULL)
- {
- if (impl->staged_updates_region == NULL)
- {
- impl->staged_updates_region = cairo_region_copy (surface->current_paint.region);
- impl->backfill_cairo_surface = cairo_surface_reference (impl->committed_cairo_surface);
- }
- else
- {
- cairo_region_union (impl->staged_updates_region, surface->current_paint.region);
- }
- }
-
- n = cairo_region_num_rectangles (surface->current_paint.region);
- for (i = 0; i < n; i++)
- {
- cairo_region_get_rectangle (surface->current_paint.region, i, &rect);
- wl_surface_damage (impl->display_server.wl_surface, rect.x, rect.y, rect.width, rect.height);
- }
-
- impl->pending_commit = TRUE;
- }
-
- gdk_wayland_surface_sync (surface);
+ impl->pending_commit = TRUE;
}
void
g_clear_pointer (&impl->opaque_region, cairo_region_destroy);
g_clear_pointer (&impl->input_region, cairo_region_destroy);
- g_clear_pointer (&impl->staged_updates_region, cairo_region_destroy);
g_clear_pointer (&impl->shortcuts_inhibitors, g_hash_table_unref);
G_OBJECT_CLASS (_gdk_surface_impl_wayland_parent_class)->finalize (object);
gdk_wayland_surface_map (surface);
_gdk_make_event (surface, GDK_MAP, NULL, FALSE);
-
- if (impl->staging_cairo_surface &&
- _gdk_wayland_is_shm_surface (impl->staging_cairo_surface))
- gdk_wayland_surface_attach_image (surface);
}
static void
unset_transient_for_exported (surface);
_gdk_wayland_surface_clear_saved_size (surface);
- drop_cairo_surfaces (surface);
impl->pending_commit = FALSE;
impl->mapped = FALSE;
}
object_class->finalize = gdk_surface_impl_wayland_finalize;
- impl_class->ref_cairo_surface = gdk_wayland_surface_ref_cairo_surface;
impl_class->show = gdk_wayland_surface_show;
impl_class->hide = gdk_wayland_surface_hide;
impl_class->withdraw = gdk_surface_wayland_withdraw;
impl_class->get_device_state = gdk_surface_wayland_get_device_state;
impl_class->input_shape_combine_region = gdk_surface_wayland_input_shape_combine_region;
impl_class->destroy = gdk_wayland_surface_destroy;
- impl_class->begin_paint = gdk_surface_impl_wayland_begin_paint;
- impl_class->end_paint = gdk_surface_impl_wayland_end_paint;
impl_class->beep = gdk_surface_impl_wayland_beep;
impl_class->focus = gdk_wayland_surface_focus;
projects / gtk4.git / commitdiff