diff options
Diffstat (limited to 'types/scene/surface.c')
| -rw-r--r-- | types/scene/surface.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/types/scene/surface.c b/types/scene/surface.c new file mode 100644 index 0000000..553cc42 --- /dev/null +++ b/types/scene/surface.c @@ -0,0 +1,211 @@ +#include <assert.h> +#include <stdlib.h> +#include <wlr/types/wlr_scene.h> +#include <wlr/types/wlr_presentation_time.h> +#include "types/wlr_scene.h" + +static void handle_scene_buffer_output_enter( + struct wl_listener *listener, void *data) { + struct wlr_scene_surface *surface = + wl_container_of(listener, surface, output_enter); + struct wlr_scene_output *output = data; + + wlr_surface_send_enter(surface->surface, output->output); +} + +static void handle_scene_buffer_output_leave( + struct wl_listener *listener, void *data) { + struct wlr_scene_surface *surface = + wl_container_of(listener, surface, output_leave); + struct wlr_scene_output *output = data; + + wlr_surface_send_leave(surface->surface, output->output); +} + +static void handle_scene_buffer_output_present( + struct wl_listener *listener, void *data) { + struct wlr_scene_surface *surface = + wl_container_of(listener, surface, output_present); + struct wlr_scene_output *scene_output = data; + + if (surface->buffer->primary_output == scene_output) { + struct wlr_scene *root = scene_node_get_root(&surface->buffer->node); + struct wlr_presentation *presentation = root->presentation; + + if (presentation) { + wlr_presentation_surface_sampled_on_output( + presentation, surface->surface, scene_output->output); + } + } +} + +static void handle_scene_buffer_frame_done( + struct wl_listener *listener, void *data) { + struct wlr_scene_surface *surface = + wl_container_of(listener, surface, frame_done); + struct timespec *now = data; + + wlr_surface_send_frame_done(surface->surface, now); +} + +static void scene_surface_handle_surface_destroy( + struct wl_listener *listener, void *data) { + struct wlr_scene_surface *surface = + wl_container_of(listener, surface, surface_destroy); + + wlr_scene_node_destroy(&surface->buffer->node); +} + +// This is used for wlr_scene where it unconditionally locks buffers preventing +// reuse of the existing texture for shm clients. With the usage pattern of +// wlr_scene surface handling, we can mark its locked buffer as safe +// for mutation. +static void client_buffer_mark_next_can_damage(struct wlr_client_buffer *buffer) { + buffer->n_ignore_locks++; +} + +static void scene_buffer_unmark_client_buffer(struct wlr_scene_buffer *scene_buffer) { + if (!scene_buffer->buffer) { + return; + } + + struct wlr_client_buffer *buffer = wlr_client_buffer_get(scene_buffer->buffer); + if (!buffer) { + return; + } + + assert(buffer->n_ignore_locks > 0); + buffer->n_ignore_locks--; +} + +static void set_buffer_with_surface_state(struct wlr_scene_buffer *scene_buffer, + struct wlr_surface *surface) { + struct wlr_surface_state *state = &surface->current; + + wlr_scene_buffer_set_opaque_region(scene_buffer, &surface->opaque_region); + + struct wlr_fbox src_box; + wlr_surface_get_buffer_source_box(surface, &src_box); + wlr_scene_buffer_set_source_box(scene_buffer, &src_box); + + wlr_scene_buffer_set_dest_size(scene_buffer, state->width, state->height); + wlr_scene_buffer_set_transform(scene_buffer, state->transform); + + scene_buffer_unmark_client_buffer(scene_buffer); + + if (surface->buffer) { + client_buffer_mark_next_can_damage(surface->buffer); + + wlr_scene_buffer_set_buffer_with_damage(scene_buffer, + &surface->buffer->base, &surface->buffer_damage); + } else { + wlr_scene_buffer_set_buffer(scene_buffer, NULL); + } +} + +static void handle_scene_surface_surface_commit( + struct wl_listener *listener, void *data) { + struct wlr_scene_surface *surface = + wl_container_of(listener, surface, surface_commit); + struct wlr_scene_buffer *scene_buffer = surface->buffer; + + set_buffer_with_surface_state(scene_buffer, surface->surface); + + // If the surface has requested a frame done event, honour that. The + // frame_callback_list will be populated in this case. We should only + // schedule the frame however if the node is enabled and there is an + // output intersecting, otherwise the frame done events would never reach + // the surface anyway. + int lx, ly; + bool enabled = wlr_scene_node_coords(&scene_buffer->node, &lx, &ly); + + if (!wl_list_empty(&surface->surface->current.frame_callback_list) && + surface->buffer->primary_output != NULL && enabled) { + wlr_output_schedule_frame(surface->buffer->primary_output->output); + } +} + +static bool scene_buffer_point_accepts_input(struct wlr_scene_buffer *scene_buffer, + int sx, int sy) { + struct wlr_scene_surface *scene_surface = + wlr_scene_surface_from_buffer(scene_buffer); + + return wlr_surface_point_accepts_input(scene_surface->surface, sx, sy); +} + +static void surface_addon_destroy(struct wlr_addon *addon) { + struct wlr_scene_surface *surface = wl_container_of(addon, surface, addon); + + scene_buffer_unmark_client_buffer(surface->buffer); + + wlr_addon_finish(&surface->addon); + + wl_list_remove(&surface->output_enter.link); + wl_list_remove(&surface->output_leave.link); + wl_list_remove(&surface->output_present.link); + wl_list_remove(&surface->frame_done.link); + wl_list_remove(&surface->surface_destroy.link); + wl_list_remove(&surface->surface_commit.link); + + free(surface); +} + +static const struct wlr_addon_interface surface_addon_impl = { + .name = "wlr_scene_surface", + .destroy = surface_addon_destroy, +}; + +struct wlr_scene_surface *wlr_scene_surface_from_buffer( + struct wlr_scene_buffer *scene_buffer) { + struct wlr_addon *addon = wlr_addon_find(&scene_buffer->node.addons, + scene_buffer, &surface_addon_impl); + if (!addon) { + return NULL; + } + + struct wlr_scene_surface *surface = wl_container_of(addon, surface, addon); + return surface; +} + +struct wlr_scene_surface *wlr_scene_surface_create(struct wlr_scene_tree *parent, + struct wlr_surface *wlr_surface) { + struct wlr_scene_surface *surface = calloc(1, sizeof(*surface)); + if (surface == NULL) { + return NULL; + } + + struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_create(parent, NULL); + if (!scene_buffer) { + free(surface); + return NULL; + } + + surface->buffer = scene_buffer; + surface->surface = wlr_surface; + scene_buffer->point_accepts_input = scene_buffer_point_accepts_input; + + surface->output_enter.notify = handle_scene_buffer_output_enter; + wl_signal_add(&scene_buffer->events.output_enter, &surface->output_enter); + + surface->output_leave.notify = handle_scene_buffer_output_leave; + wl_signal_add(&scene_buffer->events.output_leave, &surface->output_leave); + + surface->output_present.notify = handle_scene_buffer_output_present; + wl_signal_add(&scene_buffer->events.output_present, &surface->output_present); + + surface->frame_done.notify = handle_scene_buffer_frame_done; + wl_signal_add(&scene_buffer->events.frame_done, &surface->frame_done); + + surface->surface_destroy.notify = scene_surface_handle_surface_destroy; + wl_signal_add(&wlr_surface->events.destroy, &surface->surface_destroy); + + surface->surface_commit.notify = handle_scene_surface_surface_commit; + wl_signal_add(&wlr_surface->events.commit, &surface->surface_commit); + + wlr_addon_init(&surface->addon, &scene_buffer->node.addons, + scene_buffer, &surface_addon_impl); + + set_buffer_with_surface_state(scene_buffer, wlr_surface); + + return surface; +} |