mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-13 00:45:58 +01:00
298 lines
9.4 KiB
C
298 lines
9.4 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_scene.h>
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#include <wlr/types/wlr_fractional_scale_v1.h>
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#include <wlr/types/wlr_presentation_time.h>
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#include <wlr/util/transform.h>
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#include "types/wlr_scene.h"
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static void handle_scene_buffer_outputs_update(
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struct wl_listener *listener, void *data) {
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struct wlr_scene_surface *surface =
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wl_container_of(listener, surface, outputs_update);
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if (surface->buffer->primary_output == NULL) {
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return;
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}
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double scale = surface->buffer->primary_output->output->scale;
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wlr_fractional_scale_v1_notify_scale(surface->surface, scale);
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wlr_surface_set_preferred_buffer_scale(surface->surface, ceil(scale));
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}
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static void handle_scene_buffer_output_enter(
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struct wl_listener *listener, void *data) {
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struct wlr_scene_surface *surface =
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wl_container_of(listener, surface, output_enter);
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struct wlr_scene_output *output = data;
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wlr_surface_send_enter(surface->surface, output->output);
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}
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static void handle_scene_buffer_output_leave(
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struct wl_listener *listener, void *data) {
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struct wlr_scene_surface *surface =
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wl_container_of(listener, surface, output_leave);
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struct wlr_scene_output *output = data;
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wlr_surface_send_leave(surface->surface, output->output);
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}
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static void handle_scene_buffer_output_sample(
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struct wl_listener *listener, void *data) {
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struct wlr_scene_surface *surface =
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wl_container_of(listener, surface, output_sample);
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const struct wlr_scene_output_sample_event *event = data;
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struct wlr_scene_output *scene_output = event->output;
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if (surface->buffer->primary_output != scene_output) {
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return;
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}
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struct wlr_scene *root = scene_node_get_root(&surface->buffer->node);
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if (!root->presentation) {
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return;
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}
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if (event->direct_scanout) {
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wlr_presentation_surface_scanned_out_on_output(
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root->presentation, surface->surface, scene_output->output);
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} else {
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wlr_presentation_surface_textured_on_output(
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root->presentation, surface->surface, scene_output->output);
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}
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}
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static void handle_scene_buffer_frame_done(
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struct wl_listener *listener, void *data) {
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struct wlr_scene_surface *surface =
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wl_container_of(listener, surface, frame_done);
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struct timespec *now = data;
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wlr_surface_send_frame_done(surface->surface, now);
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}
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static void scene_surface_handle_surface_destroy(
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struct wl_listener *listener, void *data) {
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struct wlr_scene_surface *surface =
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wl_container_of(listener, surface, surface_destroy);
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wlr_scene_node_destroy(&surface->buffer->node);
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}
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// This is used for wlr_scene where it unconditionally locks buffers preventing
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// reuse of the existing texture for shm clients. With the usage pattern of
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// wlr_scene surface handling, we can mark its locked buffer as safe
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// for mutation.
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static void client_buffer_mark_next_can_damage(struct wlr_client_buffer *buffer) {
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buffer->n_ignore_locks++;
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}
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static void scene_buffer_unmark_client_buffer(struct wlr_scene_buffer *scene_buffer) {
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if (!scene_buffer->buffer) {
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return;
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}
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struct wlr_client_buffer *buffer = wlr_client_buffer_get(scene_buffer->buffer);
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if (!buffer) {
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return;
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}
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assert(buffer->n_ignore_locks > 0);
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buffer->n_ignore_locks--;
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}
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static int min(int a, int b) {
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return a < b ? a : b;
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}
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static void surface_reconfigure(struct wlr_scene_surface *scene_surface) {
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struct wlr_scene_buffer *scene_buffer = scene_surface->buffer;
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struct wlr_surface *surface = scene_surface->surface;
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struct wlr_surface_state *state = &surface->current;
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struct wlr_fbox src_box;
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wlr_surface_get_buffer_source_box(surface, &src_box);
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pixman_region32_t opaque;
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pixman_region32_init(&opaque);
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pixman_region32_copy(&opaque, &surface->opaque_region);
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int width = state->width;
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int height = state->height;
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if (!wlr_box_empty(&scene_surface->clip)) {
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struct wlr_box *clip = &scene_surface->clip;
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int buffer_width = state->buffer_width;
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int buffer_height = state->buffer_height;
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width = min(clip->width, width - clip->x);
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height = min(clip->height, height - clip->y);
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wlr_fbox_transform(&src_box, &src_box, state->transform,
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buffer_width, buffer_height);
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wlr_output_transform_coords(state->transform, &buffer_width, &buffer_height);
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src_box.x += (double)(clip->x * buffer_width) / state->width;
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src_box.y += (double)(clip->y * buffer_height) / state->height;
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src_box.width *= (double)width / state->width;
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src_box.height *= (double)height / state->height;
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wlr_fbox_transform(&src_box, &src_box, wlr_output_transform_invert(state->transform),
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buffer_width, buffer_height);
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pixman_region32_translate(&opaque, -clip->x, -clip->y);
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pixman_region32_intersect_rect(&opaque, &opaque, 0, 0, width, height);
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}
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if (width <= 0 || height <= 0) {
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wlr_scene_buffer_set_buffer(scene_buffer, NULL);
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pixman_region32_fini(&opaque);
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return;
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}
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wlr_scene_buffer_set_opaque_region(scene_buffer, &opaque);
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wlr_scene_buffer_set_source_box(scene_buffer, &src_box);
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wlr_scene_buffer_set_dest_size(scene_buffer, width, height);
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wlr_scene_buffer_set_transform(scene_buffer, state->transform);
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scene_buffer_unmark_client_buffer(scene_buffer);
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if (surface->buffer) {
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client_buffer_mark_next_can_damage(surface->buffer);
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wlr_scene_buffer_set_buffer_with_damage(scene_buffer,
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&surface->buffer->base, &surface->buffer_damage);
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} else {
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wlr_scene_buffer_set_buffer(scene_buffer, NULL);
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}
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pixman_region32_fini(&opaque);
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}
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static void handle_scene_surface_surface_commit(
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struct wl_listener *listener, void *data) {
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struct wlr_scene_surface *surface =
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wl_container_of(listener, surface, surface_commit);
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struct wlr_scene_buffer *scene_buffer = surface->buffer;
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surface_reconfigure(surface);
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// If the surface has requested a frame done event, honour that. The
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// frame_callback_list will be populated in this case. We should only
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// schedule the frame however if the node is enabled and there is an
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// output intersecting, otherwise the frame done events would never reach
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// the surface anyway.
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int lx, ly;
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bool enabled = wlr_scene_node_coords(&scene_buffer->node, &lx, &ly);
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if (!wl_list_empty(&surface->surface->current.frame_callback_list) &&
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surface->buffer->primary_output != NULL && enabled) {
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wlr_output_schedule_frame(surface->buffer->primary_output->output);
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}
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}
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static bool scene_buffer_point_accepts_input(struct wlr_scene_buffer *scene_buffer,
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double *sx, double *sy) {
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struct wlr_scene_surface *scene_surface =
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wlr_scene_surface_try_from_buffer(scene_buffer);
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*sx += scene_surface->clip.x;
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*sy += scene_surface->clip.y;
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return wlr_surface_point_accepts_input(scene_surface->surface, *sx, *sy);
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}
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static void surface_addon_destroy(struct wlr_addon *addon) {
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struct wlr_scene_surface *surface = wl_container_of(addon, surface, addon);
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scene_buffer_unmark_client_buffer(surface->buffer);
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wlr_addon_finish(&surface->addon);
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wl_list_remove(&surface->outputs_update.link);
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wl_list_remove(&surface->output_enter.link);
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wl_list_remove(&surface->output_leave.link);
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wl_list_remove(&surface->output_sample.link);
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wl_list_remove(&surface->frame_done.link);
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wl_list_remove(&surface->surface_destroy.link);
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wl_list_remove(&surface->surface_commit.link);
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free(surface);
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}
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static const struct wlr_addon_interface surface_addon_impl = {
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.name = "wlr_scene_surface",
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.destroy = surface_addon_destroy,
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};
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struct wlr_scene_surface *wlr_scene_surface_try_from_buffer(
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struct wlr_scene_buffer *scene_buffer) {
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struct wlr_addon *addon = wlr_addon_find(&scene_buffer->node.addons,
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scene_buffer, &surface_addon_impl);
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if (!addon) {
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return NULL;
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}
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struct wlr_scene_surface *surface = wl_container_of(addon, surface, addon);
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return surface;
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}
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struct wlr_scene_surface *wlr_scene_surface_create(struct wlr_scene_tree *parent,
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struct wlr_surface *wlr_surface) {
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struct wlr_scene_surface *surface = calloc(1, sizeof(*surface));
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if (surface == NULL) {
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return NULL;
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}
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struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_create(parent, NULL);
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if (!scene_buffer) {
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free(surface);
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return NULL;
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}
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surface->buffer = scene_buffer;
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surface->surface = wlr_surface;
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scene_buffer->point_accepts_input = scene_buffer_point_accepts_input;
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surface->outputs_update.notify = handle_scene_buffer_outputs_update;
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wl_signal_add(&scene_buffer->events.outputs_update, &surface->outputs_update);
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surface->output_enter.notify = handle_scene_buffer_output_enter;
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wl_signal_add(&scene_buffer->events.output_enter, &surface->output_enter);
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surface->output_leave.notify = handle_scene_buffer_output_leave;
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wl_signal_add(&scene_buffer->events.output_leave, &surface->output_leave);
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surface->output_sample.notify = handle_scene_buffer_output_sample;
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wl_signal_add(&scene_buffer->events.output_sample, &surface->output_sample);
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surface->frame_done.notify = handle_scene_buffer_frame_done;
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wl_signal_add(&scene_buffer->events.frame_done, &surface->frame_done);
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surface->surface_destroy.notify = scene_surface_handle_surface_destroy;
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wl_signal_add(&wlr_surface->events.destroy, &surface->surface_destroy);
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surface->surface_commit.notify = handle_scene_surface_surface_commit;
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wl_signal_add(&wlr_surface->events.commit, &surface->surface_commit);
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wlr_addon_init(&surface->addon, &scene_buffer->node.addons,
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scene_buffer, &surface_addon_impl);
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surface_reconfigure(surface);
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return surface;
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}
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void scene_surface_set_clip(struct wlr_scene_surface *surface, struct wlr_box *clip) {
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if (wlr_box_equal(clip, &surface->clip)) {
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return;
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}
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if (clip) {
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surface->clip = *clip;
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} else {
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surface->clip = (struct wlr_box){0};
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}
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surface_reconfigure(surface);
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}
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