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-rw-r--r--include/wlr/render/interface.h1
-rw-r--r--include/wlr/render/wlr_texture.h5
-rw-r--r--include/wlr/types/wlr_surface.h6
-rw-r--r--render/gles2/texture.c6
-rw-r--r--render/wlr_texture.c7
-rw-r--r--types/wlr_surface.c22
6 files changed, 47 insertions, 0 deletions
diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h
index 1b138ea3..f4565ad5 100644
--- a/include/wlr/render/interface.h
+++ b/include/wlr/render/interface.h
@@ -56,6 +56,7 @@ void wlr_renderer_init(struct wlr_renderer *renderer,
struct wlr_texture_impl {
void (*get_size)(struct wlr_texture *texture, int *width, int *height);
+ bool (*is_opaque)(struct wlr_texture *texture);
bool (*write_pixels)(struct wlr_texture *texture,
enum wl_shm_format wl_fmt, uint32_t stride, uint32_t width,
uint32_t height, uint32_t src_x, uint32_t src_y, uint32_t dst_x,
diff --git a/include/wlr/render/wlr_texture.h b/include/wlr/render/wlr_texture.h
index 785f4fc6..9370fa25 100644
--- a/include/wlr/render/wlr_texture.h
+++ b/include/wlr/render/wlr_texture.h
@@ -41,6 +41,11 @@ struct wlr_texture *wlr_texture_from_dmabuf(struct wlr_renderer *renderer,
void wlr_texture_get_size(struct wlr_texture *texture, int *width, int *height);
/**
+ * Returns true if this texture is using a fully opaque format.
+ */
+bool wlr_texture_is_opaque(struct wlr_texture *texture);
+
+/**
* Update a texture with raw pixels. The texture must be mutable.
*/
bool wlr_texture_write_pixels(struct wlr_texture *texture,
diff --git a/include/wlr/types/wlr_surface.h b/include/wlr/types/wlr_surface.h
index 93f456cd..0e3b5ff4 100644
--- a/include/wlr/types/wlr_surface.h
+++ b/include/wlr/types/wlr_surface.h
@@ -67,6 +67,12 @@ struct wlr_surface {
*/
pixman_region32_t buffer_damage;
/**
+ * The current opaque region, in surface-local coordinates. It is clipped to
+ * the surface bounds. If the surface's buffer is using a fully opaque
+ * format, this is set to the whole surface.
+ */
+ pixman_region32_t opaque_region;
+ /**
* `current` contains the current, committed surface state. `pending`
* accumulates state changes from the client between commits and shouldn't
* be accessed by the compositor directly. `previous` contains the state of
diff --git a/render/gles2/texture.c b/render/gles2/texture.c
index 3c70a235..1e55f4c4 100644
--- a/render/gles2/texture.c
+++ b/render/gles2/texture.c
@@ -36,6 +36,11 @@ static void gles2_texture_get_size(struct wlr_texture *wlr_texture, int *width,
*height = texture->height;
}
+static bool gles2_texture_is_opaque(struct wlr_texture *wlr_texture) {
+ struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
+ return !texture->has_alpha;
+}
+
static bool gles2_texture_write_pixels(struct wlr_texture *wlr_texture,
enum wl_shm_format wl_fmt, uint32_t stride, uint32_t width,
uint32_t height, uint32_t src_x, uint32_t src_y, uint32_t dst_x,
@@ -129,6 +134,7 @@ static void gles2_texture_destroy(struct wlr_texture *wlr_texture) {
static const struct wlr_texture_impl texture_impl = {
.get_size = gles2_texture_get_size,
+ .is_opaque = gles2_texture_is_opaque,
.write_pixels = gles2_texture_write_pixels,
.to_dmabuf = gles2_texture_to_dmabuf,
.destroy = gles2_texture_destroy,
diff --git a/render/wlr_texture.c b/render/wlr_texture.c
index 76986920..06872f1e 100644
--- a/render/wlr_texture.c
+++ b/render/wlr_texture.c
@@ -47,6 +47,13 @@ void wlr_texture_get_size(struct wlr_texture *texture, int *width,
return texture->impl->get_size(texture, width, height);
}
+bool wlr_texture_is_opaque(struct wlr_texture *texture) {
+ if (!texture->impl->is_opaque) {
+ return false;
+ }
+ return texture->impl->is_opaque(texture);
+}
+
bool wlr_texture_write_pixels(struct wlr_texture *texture,
enum wl_shm_format wl_fmt, uint32_t stride, uint32_t width,
uint32_t height, uint32_t src_x, uint32_t src_y, uint32_t dst_x,
diff --git a/types/wlr_surface.c b/types/wlr_surface.c
index 3277b37f..f2b248ca 100644
--- a/types/wlr_surface.c
+++ b/types/wlr_surface.c
@@ -340,6 +340,25 @@ static void surface_apply_damage(struct wlr_surface *surface) {
surface->buffer = buffer;
}
+static void surface_update_opaque_region(struct wlr_surface *surface) {
+ struct wlr_texture *texture = wlr_surface_get_texture(surface);
+ if (texture == NULL) {
+ pixman_region32_clear(&surface->opaque_region);
+ return;
+ }
+
+ if (wlr_texture_is_opaque(texture)) {
+ pixman_region32_init_rect(&surface->opaque_region,
+ 0, 0, surface->current.width, surface->current.height);
+ return;
+ }
+
+ pixman_region32_copy(&surface->opaque_region, &surface->current.opaque);
+ pixman_region32_intersect_rect(&surface->opaque_region,
+ &surface->opaque_region,
+ 0, 0, surface->current.width, surface->current.height);
+}
+
static void surface_commit_pending(struct wlr_surface *surface) {
bool invalid_buffer = surface->pending.committed & WLR_SURFACE_STATE_BUFFER;
@@ -356,6 +375,7 @@ static void surface_commit_pending(struct wlr_surface *surface) {
if (invalid_buffer) {
surface_apply_damage(surface);
}
+ surface_update_opaque_region(surface);
// commit subsurface order
struct wlr_subsurface *subsurface;
@@ -562,6 +582,7 @@ static void surface_handle_resource_destroy(struct wl_resource *resource) {
surface_state_finish(&surface->current);
surface_state_finish(&surface->previous);
pixman_region32_fini(&surface->buffer_damage);
+ pixman_region32_fini(&surface->opaque_region);
wlr_buffer_unref(surface->buffer);
free(surface);
}
@@ -607,6 +628,7 @@ struct wlr_surface *wlr_surface_create(struct wl_client *client,
wl_list_init(&surface->subsurfaces);
wl_list_init(&surface->subsurface_pending_list);
pixman_region32_init(&surface->buffer_damage);
+ pixman_region32_init(&surface->opaque_region);
wl_signal_add(&renderer->events.destroy, &surface->renderer_destroy);
surface->renderer_destroy.notify = surface_handle_renderer_destroy;