mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-02 11:55:59 +01:00
Introduce wlr_buffer
This commit is contained in:
parent
a072a8309e
commit
e4933ab445
5 changed files with 263 additions and 91 deletions
36
include/wlr/types/wlr_buffer.h
Normal file
36
include/wlr/types/wlr_buffer.h
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@ -0,0 +1,36 @@
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#ifndef WLR_TYPES_WLR_BUFFER_H
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#define WLR_TYPES_WLR_BUFFER_H
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#include <pixman.h>
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#include <wayland-server.h>
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struct wlr_buffer {
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struct wl_resource *resource;
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struct wlr_texture *texture;
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bool released;
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size_t n_refs;
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struct wl_listener resource_destroy;
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};
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struct wlr_renderer;
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// Checks if a resource is a wl_buffer.
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bool wlr_resource_is_buffer(struct wl_resource *resource);
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// Returns the buffer size.
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bool wlr_buffer_get_resource_size(struct wl_resource *resource,
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struct wlr_renderer *renderer, int *width, int *height);
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// Uploads the texture to the GPU and references it.
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struct wlr_buffer *wlr_buffer_create(struct wlr_renderer *renderer,
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struct wl_resource *resource);
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// References and unreferences the buffer.
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void wlr_buffer_ref(struct wlr_buffer *buffer);
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void wlr_buffer_unref(struct wlr_buffer *buffer);
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// Tries to update the texture in the provided buffer. This destroys `buffer`
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// and returns a new buffer.
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// Fails if `buffer->n_refs` > 1 or if the texture isn't mutable.
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struct wlr_buffer *wlr_buffer_apply_damage(struct wlr_buffer *buffer,
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struct wl_resource *resource, pixman_region32_t *damage);
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#endif
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@ -69,6 +69,7 @@ struct wlr_subsurface {
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struct wlr_surface {
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struct wlr_surface {
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struct wl_resource *resource;
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struct wl_resource *resource;
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struct wlr_renderer *renderer;
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struct wlr_renderer *renderer;
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struct wlr_buffer *buffer;
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struct wlr_texture *texture;
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struct wlr_texture *texture;
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struct wlr_surface_state *current, *pending;
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struct wlr_surface_state *current, *pending;
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const char *role; // the lifetime-bound role or null
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const char *role; // the lifetime-bound role or null
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@ -20,6 +20,7 @@ lib_wlr_types = static_library(
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'xdg_shell_v6/wlr_xdg_surface_v6.c',
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'xdg_shell_v6/wlr_xdg_surface_v6.c',
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'xdg_shell_v6/wlr_xdg_toplevel_v6.c',
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'xdg_shell_v6/wlr_xdg_toplevel_v6.c',
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'wlr_box.c',
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'wlr_box.c',
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'wlr_buffer.c',
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'wlr_compositor.c',
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'wlr_compositor.c',
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'wlr_cursor.c',
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'wlr_cursor.c',
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'wlr_gamma_control.c',
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'wlr_gamma_control.c',
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186
types/wlr_buffer.c
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186
types/wlr_buffer.c
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@ -0,0 +1,186 @@
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#include <assert.h>
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#include <stdlib.h>
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#include <wlr/types/wlr_buffer.h>
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#include <wlr/types/wlr_linux_dmabuf.h>
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/util/log.h>
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bool wlr_resource_is_buffer(struct wl_resource *resource) {
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return strcmp(wl_resource_get_class(resource), wl_buffer_interface.name) == 0;
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}
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bool wlr_buffer_get_resource_size(struct wl_resource *resource,
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struct wlr_renderer *renderer, int *width, int *height) {
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assert(wlr_resource_is_buffer(resource));
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struct wl_shm_buffer *shm_buf = wl_shm_buffer_get(resource);
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if (shm_buf != NULL) {
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*width = wl_shm_buffer_get_width(shm_buf);
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*height = wl_shm_buffer_get_height(shm_buf);
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} else if (wlr_renderer_resource_is_wl_drm_buffer(renderer,
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resource)) {
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wlr_renderer_wl_drm_buffer_get_size(renderer, resource,
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width, height);
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} else if (wlr_dmabuf_resource_is_buffer(resource)) {
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struct wlr_dmabuf_buffer *dmabuf =
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wlr_dmabuf_buffer_from_buffer_resource(resource);
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*width = dmabuf->attributes.width;
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*height = dmabuf->attributes.height;
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} else {
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*width = *height = 0;
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return false;
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}
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return true;
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}
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static void buffer_resource_handle_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_buffer *buffer =
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wl_container_of(listener, buffer, resource_destroy);
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wl_list_remove(&buffer->resource_destroy.link);
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wl_list_init(&buffer->resource_destroy.link);
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buffer->resource = NULL;
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if (!buffer->released) {
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// The texture becomes invalid
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wlr_texture_destroy(buffer->texture);
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buffer->texture = NULL;
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}
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}
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struct wlr_buffer *wlr_buffer_create(struct wlr_renderer *renderer,
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struct wl_resource *resource) {
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assert(wlr_resource_is_buffer(resource));
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struct wlr_texture *texture = NULL;
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bool released = false;
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struct wl_shm_buffer *shm_buf = wl_shm_buffer_get(resource);
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if (shm_buf != NULL) {
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enum wl_shm_format fmt = wl_shm_buffer_get_format(shm_buf);
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int32_t stride = wl_shm_buffer_get_stride(shm_buf);
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int32_t width = wl_shm_buffer_get_width(shm_buf);
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int32_t height = wl_shm_buffer_get_height(shm_buf);
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wl_shm_buffer_begin_access(shm_buf);
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void *data = wl_shm_buffer_get_data(shm_buf);
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texture = wlr_texture_from_pixels(renderer, fmt, stride,
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width, height, data);
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wl_shm_buffer_end_access(shm_buf);
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// We have uploaded the data, we don't need to access the wl_buffer
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// anymore
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wl_buffer_send_release(resource);
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released = true;
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} else if (wlr_renderer_resource_is_wl_drm_buffer(renderer, resource)) {
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texture = wlr_texture_from_wl_drm(renderer, resource);
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} else if (wlr_dmabuf_resource_is_buffer(resource)) {
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struct wlr_dmabuf_buffer *dmabuf =
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wlr_dmabuf_buffer_from_buffer_resource(resource);
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texture = wlr_texture_from_dmabuf(renderer, &dmabuf->attributes);
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} else {
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wlr_log(L_ERROR, "Cannot upload texture: unknown buffer type");
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return NULL;
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}
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if (texture == NULL) {
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wlr_log(L_ERROR, "Failed to upload texture");
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return NULL;
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}
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struct wlr_buffer *buffer = calloc(1, sizeof(struct wlr_buffer));
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if (buffer == NULL) {
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return NULL;
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}
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buffer->resource = resource;
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buffer->texture = texture;
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buffer->released = released;
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buffer->n_refs = 1;
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wl_resource_add_destroy_listener(resource, &buffer->resource_destroy);
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buffer->resource_destroy.notify = buffer_resource_handle_destroy;
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return buffer;
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}
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void wlr_buffer_ref(struct wlr_buffer *buffer) {
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buffer->n_refs++;
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}
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void wlr_buffer_unref(struct wlr_buffer *buffer) {
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if (buffer == NULL) {
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return;
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}
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assert(buffer->n_refs > 0);
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buffer->n_refs--;
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if (buffer->n_refs > 0) {
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return;
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}
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if (!buffer->released && buffer->resource != NULL) {
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wl_buffer_send_release(buffer->resource);
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}
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wl_list_remove(&buffer->resource_destroy.link);
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wlr_texture_destroy(buffer->texture);
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free(buffer);
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}
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struct wlr_buffer *wlr_buffer_apply_damage(struct wlr_buffer *buffer,
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struct wl_resource *resource, pixman_region32_t *damage) {
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assert(wlr_resource_is_buffer(resource));
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if (buffer->n_refs > 1) {
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// Someone else still has a reference to the buffer
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return NULL;
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}
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struct wl_shm_buffer *shm_buf = wl_shm_buffer_get(resource);
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if (shm_buf == NULL) {
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// Uploading only damaged regions only works for wl_shm buffers
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return NULL;
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}
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enum wl_shm_format fmt = wl_shm_buffer_get_format(shm_buf);
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int32_t stride = wl_shm_buffer_get_stride(shm_buf);
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int32_t width = wl_shm_buffer_get_width(shm_buf);
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int32_t height = wl_shm_buffer_get_height(shm_buf);
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int32_t texture_width, texture_height;
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wlr_texture_get_size(buffer->texture, &texture_width, &texture_height);
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if (width != texture_width || height != texture_height) {
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return NULL;
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}
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wl_shm_buffer_begin_access(shm_buf);
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void *data = wl_shm_buffer_get_data(shm_buf);
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int n;
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pixman_box32_t *rects = pixman_region32_rectangles(damage, &n);
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for (int i = 0; i < n; ++i) {
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pixman_box32_t *r = &rects[i];
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if (!wlr_texture_write_pixels(buffer->texture, fmt, stride,
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r->x2 - r->x1, r->y2 - r->y1, r->x1, r->y1,
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r->x1, r->y1, data)) {
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wl_shm_buffer_end_access(shm_buf);
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return NULL;
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}
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}
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wl_shm_buffer_end_access(shm_buf);
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// We have uploaded the data, we don't need to access the wl_buffer
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// anymore
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wl_buffer_send_release(resource);
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wl_list_remove(&buffer->resource_destroy.link);
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wl_resource_add_destroy_listener(resource, &buffer->resource_destroy);
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buffer->resource_destroy.notify = buffer_resource_handle_destroy;
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buffer->resource = resource;
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buffer->released = true;
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return buffer;
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}
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@ -1,10 +1,9 @@
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#include <assert.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <wayland-server.h>
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#include <wayland-server.h>
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#include <wlr/render/egl.h>
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#include <wlr/render/interface.h>
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#include <wlr/render/interface.h>
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#include <wlr/types/wlr_buffer.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_linux_dmabuf.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_region.h>
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#include <wlr/types/wlr_region.h>
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#include <wlr/types/wlr_surface.h>
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#include <wlr/types/wlr_surface.h>
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@ -46,13 +45,6 @@ static void surface_handle_buffer_destroy(struct wl_listener *listener,
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surface_state_reset_buffer(state);
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surface_state_reset_buffer(state);
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}
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}
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static void surface_state_release_buffer(struct wlr_surface_state *state) {
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if (state->buffer) {
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wl_buffer_send_release(state->buffer);
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surface_state_reset_buffer(state);
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}
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}
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static void surface_state_set_buffer(struct wlr_surface_state *state,
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static void surface_state_set_buffer(struct wlr_surface_state *state,
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struct wl_resource *buffer) {
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struct wl_resource *buffer) {
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surface_state_reset_buffer(state);
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surface_state_reset_buffer(state);
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@ -175,24 +167,8 @@ static bool surface_update_size(struct wlr_surface *surface,
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int scale = state->scale;
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int scale = state->scale;
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enum wl_output_transform transform = state->transform;
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enum wl_output_transform transform = state->transform;
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struct wl_shm_buffer *buf = wl_shm_buffer_get(state->buffer);
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wlr_buffer_get_resource_size(state->buffer, surface->renderer,
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if (buf != NULL) {
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state->buffer_width = wl_shm_buffer_get_width(buf);
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state->buffer_height = wl_shm_buffer_get_height(buf);
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} else if (wlr_renderer_resource_is_wl_drm_buffer(surface->renderer,
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state->buffer)) {
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wlr_renderer_wl_drm_buffer_get_size(surface->renderer, state->buffer,
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&state->buffer_width, &state->buffer_height);
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&state->buffer_width, &state->buffer_height);
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} else if (wlr_dmabuf_resource_is_buffer(state->buffer)) {
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struct wlr_dmabuf_buffer *dmabuf =
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wlr_dmabuf_buffer_from_buffer_resource(state->buffer);
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state->buffer_width = dmabuf->attributes.width;
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state->buffer_height = dmabuf->attributes.height;
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} else {
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wlr_log(L_ERROR, "Unknown buffer handle attached");
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state->buffer_width = 0;
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state->buffer_height = 0;
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}
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int width = state->buffer_width / scale;
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int width = state->buffer_width / scale;
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int height = state->buffer_height / scale;
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int height = state->buffer_height / scale;
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@ -243,7 +219,6 @@ static void surface_move_state(struct wlr_surface *surface,
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update_size = true;
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update_size = true;
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}
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}
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if ((next->invalid & WLR_SURFACE_INVALID_BUFFER)) {
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if ((next->invalid & WLR_SURFACE_INVALID_BUFFER)) {
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surface_state_release_buffer(state);
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surface_state_set_buffer(state, next->buffer);
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surface_state_set_buffer(state, next->buffer);
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surface_state_reset_buffer(next);
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surface_state_reset_buffer(next);
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state->sx = next->sx;
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state->sx = next->sx;
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@ -351,86 +326,60 @@ static void surface_damage_subsurfaces(struct wlr_subsurface *subsurface) {
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}
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}
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static void surface_apply_damage(struct wlr_surface *surface,
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static void surface_apply_damage(struct wlr_surface *surface,
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bool invalid_buffer, bool reupload_buffer) {
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bool invalid_buffer) {
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struct wl_resource *resource = surface->current->buffer;
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struct wl_resource *resource = surface->current->buffer;
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if (resource == NULL) {
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if (resource == NULL) {
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// NULL commit
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wlr_buffer_unref(surface->buffer);
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surface->buffer = NULL;
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surface->texture = NULL;
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return;
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return;
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}
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}
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struct wl_shm_buffer *buf = wl_shm_buffer_get(resource);
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if (surface->buffer != NULL && !surface->buffer->released &&
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if (buf != NULL) {
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!invalid_buffer) {
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wl_shm_buffer_begin_access(buf);
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// The buffer is still the same, no need to re-upload
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return;
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}
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enum wl_shm_format fmt = wl_shm_buffer_get_format(buf);
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if (surface->buffer != NULL && surface->buffer->released) {
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int32_t stride = wl_shm_buffer_get_stride(buf);
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int32_t width = wl_shm_buffer_get_width(buf);
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int32_t height = wl_shm_buffer_get_height(buf);
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|
||||||
void *data = wl_shm_buffer_get_data(buf);
|
|
||||||
|
|
||||||
if (surface->texture == NULL || reupload_buffer) {
|
|
||||||
wlr_texture_destroy(surface->texture);
|
|
||||||
surface->texture = wlr_texture_from_pixels(surface->renderer, fmt,
|
|
||||||
stride, width, height, data);
|
|
||||||
} else {
|
|
||||||
pixman_region32_t damage;
|
pixman_region32_t damage;
|
||||||
pixman_region32_init(&damage);
|
pixman_region32_init(&damage);
|
||||||
pixman_region32_copy(&damage, &surface->current->buffer_damage);
|
pixman_region32_copy(&damage, &surface->current->buffer_damage);
|
||||||
pixman_region32_intersect_rect(&damage, &damage, 0, 0,
|
pixman_region32_intersect_rect(&damage, &damage, 0, 0,
|
||||||
surface->current->buffer_width,
|
surface->current->buffer_width, surface->current->buffer_height);
|
||||||
surface->current->buffer_height);
|
|
||||||
|
|
||||||
int n;
|
struct wlr_buffer *updated_buffer =
|
||||||
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &n);
|
wlr_buffer_apply_damage(surface->buffer, resource, &damage);
|
||||||
for (int i = 0; i < n; ++i) {
|
|
||||||
pixman_box32_t *r = &rects[i];
|
|
||||||
if (!wlr_texture_write_pixels(surface->texture, fmt, stride,
|
|
||||||
r->x2 - r->x1, r->y2 - r->y1, r->x1, r->y1,
|
|
||||||
r->x1, r->y1, data)) {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
pixman_region32_fini(&damage);
|
pixman_region32_fini(&damage);
|
||||||
|
|
||||||
|
if (updated_buffer != NULL) {
|
||||||
|
surface->buffer = updated_buffer;
|
||||||
|
return;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
wl_shm_buffer_end_access(buf);
|
wlr_buffer_unref(surface->buffer);
|
||||||
} else if (invalid_buffer || reupload_buffer) {
|
surface->buffer = NULL;
|
||||||
wlr_texture_destroy(surface->texture);
|
|
||||||
|
|
||||||
if (wlr_renderer_resource_is_wl_drm_buffer(surface->renderer, resource)) {
|
|
||||||
surface->texture =
|
|
||||||
wlr_texture_from_wl_drm(surface->renderer, resource);
|
|
||||||
} else if (wlr_dmabuf_resource_is_buffer(resource)) {
|
|
||||||
struct wlr_dmabuf_buffer *dmabuf =
|
|
||||||
wlr_dmabuf_buffer_from_buffer_resource(resource);
|
|
||||||
surface->texture =
|
|
||||||
wlr_texture_from_dmabuf(surface->renderer, &dmabuf->attributes);
|
|
||||||
} else {
|
|
||||||
surface->texture = NULL;
|
surface->texture = NULL;
|
||||||
wlr_log(L_ERROR, "Unknown buffer handle attached");
|
|
||||||
}
|
struct wlr_buffer *buffer = wlr_buffer_create(surface->renderer, resource);
|
||||||
|
if (buffer == NULL) {
|
||||||
|
wlr_log(L_ERROR, "Failed to upload buffer");
|
||||||
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
surface_state_release_buffer(surface->current);
|
surface->buffer = buffer;
|
||||||
|
surface->texture = buffer->texture;
|
||||||
}
|
}
|
||||||
|
|
||||||
static void surface_commit_pending(struct wlr_surface *surface) {
|
static void surface_commit_pending(struct wlr_surface *surface) {
|
||||||
int32_t oldw = surface->current->buffer_width;
|
|
||||||
int32_t oldh = surface->current->buffer_height;
|
|
||||||
|
|
||||||
bool invalid_buffer = surface->pending->invalid & WLR_SURFACE_INVALID_BUFFER;
|
bool invalid_buffer = surface->pending->invalid & WLR_SURFACE_INVALID_BUFFER;
|
||||||
bool null_buffer_commit = invalid_buffer && surface->pending->buffer == NULL;
|
|
||||||
|
|
||||||
surface_move_state(surface, surface->pending, surface->current);
|
surface_move_state(surface, surface->pending, surface->current);
|
||||||
|
|
||||||
if (null_buffer_commit) {
|
surface_apply_damage(surface, invalid_buffer);
|
||||||
wlr_texture_destroy(surface->texture);
|
|
||||||
surface->texture = NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool reupload_buffer = oldw != surface->current->buffer_width ||
|
|
||||||
oldh != surface->current->buffer_height;
|
|
||||||
surface_apply_damage(surface, invalid_buffer, reupload_buffer);
|
|
||||||
|
|
||||||
// commit subsurface order
|
// commit subsurface order
|
||||||
struct wlr_subsurface *subsurface;
|
struct wlr_subsurface *subsurface;
|
||||||
|
@ -652,10 +601,9 @@ static void surface_handle_resource_destroy(struct wl_resource *resource) {
|
||||||
wl_list_remove(wl_resource_get_link(surface->resource));
|
wl_list_remove(wl_resource_get_link(surface->resource));
|
||||||
|
|
||||||
wl_list_remove(&surface->renderer_destroy.link);
|
wl_list_remove(&surface->renderer_destroy.link);
|
||||||
wlr_texture_destroy(surface->texture);
|
|
||||||
surface_state_destroy(surface->pending);
|
surface_state_destroy(surface->pending);
|
||||||
surface_state_destroy(surface->current);
|
surface_state_destroy(surface->current);
|
||||||
|
wlr_buffer_unref(surface->buffer);
|
||||||
free(surface);
|
free(surface);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue