110 lines
3.6 KiB
C
110 lines
3.6 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include <wlr/interfaces/wlr_buffer.h>
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/util/log.h>
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#include "types/wlr_buffer.h"
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static const struct wlr_buffer_impl client_buffer_impl;
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struct wlr_client_buffer *wlr_client_buffer_get(struct wlr_buffer *wlr_buffer) {
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if (wlr_buffer->impl != &client_buffer_impl) {
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return NULL;
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}
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struct wlr_client_buffer *buffer = wl_container_of(wlr_buffer, buffer, base);
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return buffer;
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}
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static struct wlr_client_buffer *client_buffer_from_buffer(
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struct wlr_buffer *buffer) {
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struct wlr_client_buffer *client_buffer = wlr_client_buffer_get(buffer);
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assert(client_buffer != NULL);
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return client_buffer;
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}
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static void client_buffer_destroy(struct wlr_buffer *buffer) {
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struct wlr_client_buffer *client_buffer = client_buffer_from_buffer(buffer);
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wl_list_remove(&client_buffer->source_destroy.link);
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wl_list_remove(&client_buffer->renderer_destroy.link);
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wlr_texture_destroy(client_buffer->texture);
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free(client_buffer);
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}
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static bool client_buffer_get_dmabuf(struct wlr_buffer *buffer,
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struct wlr_dmabuf_attributes *attribs) {
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struct wlr_client_buffer *client_buffer = client_buffer_from_buffer(buffer);
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if (client_buffer->source == NULL) {
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return false;
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}
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return wlr_buffer_get_dmabuf(client_buffer->source, attribs);
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}
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static const struct wlr_buffer_impl client_buffer_impl = {
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.destroy = client_buffer_destroy,
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.get_dmabuf = client_buffer_get_dmabuf,
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};
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static void client_buffer_handle_source_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_client_buffer *client_buffer =
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wl_container_of(listener, client_buffer, source_destroy);
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wl_list_remove(&client_buffer->source_destroy.link);
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wl_list_init(&client_buffer->source_destroy.link);
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client_buffer->source = NULL;
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}
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static void client_buffer_handle_renderer_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_client_buffer *client_buffer =
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wl_container_of(listener, client_buffer, renderer_destroy);
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wl_list_remove(&client_buffer->renderer_destroy.link);
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wl_list_init(&client_buffer->renderer_destroy.link);
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client_buffer->texture = NULL;
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}
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struct wlr_client_buffer *wlr_client_buffer_create(struct wlr_buffer *buffer,
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struct wlr_renderer *renderer) {
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struct wlr_texture *texture = wlr_texture_from_buffer(renderer, buffer);
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if (texture == NULL) {
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wlr_log(WLR_ERROR, "Failed to create texture");
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return NULL;
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}
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struct wlr_client_buffer *client_buffer = calloc(1, sizeof(*client_buffer));
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if (client_buffer == NULL) {
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wlr_texture_destroy(texture);
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return NULL;
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}
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wlr_buffer_init(&client_buffer->base, &client_buffer_impl,
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texture->width, texture->height);
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client_buffer->source = buffer;
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client_buffer->texture = texture;
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wl_signal_add(&buffer->events.destroy, &client_buffer->source_destroy);
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client_buffer->source_destroy.notify = client_buffer_handle_source_destroy;
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wl_signal_add(&texture->renderer->events.destroy, &client_buffer->renderer_destroy);
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client_buffer->renderer_destroy.notify = client_buffer_handle_renderer_destroy;
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// Ensure the buffer will be released before being destroyed
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wlr_buffer_lock(&client_buffer->base);
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wlr_buffer_drop(&client_buffer->base);
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return client_buffer;
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}
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bool wlr_client_buffer_apply_damage(struct wlr_client_buffer *client_buffer,
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struct wlr_buffer *next, const pixman_region32_t *damage) {
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if (client_buffer->base.n_locks - client_buffer->n_ignore_locks > 1) {
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// Someone else still has a reference to the buffer
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return false;
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}
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if (client_buffer->texture == NULL) {
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return false;
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}
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return wlr_texture_update_from_buffer(client_buffer->texture, next, damage);
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}
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