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scene: add wlr_scene_buffer_set_dest_size

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This commit is contained in:
Simon Ser 2021-09-20 18:05:11 +02:00 committed by Simon Zeni
parent 3d4afbe945
commit 43833fba64
2 changed files with 30 additions and 2 deletions
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11
include/wlr/types/wlr_scene.h
View file

@ -95,6 +95,7 @@ struct wlr_scene_buffer {
struct wlr_texture *texture;
struct wlr_fbox src_box;
int dst_width, dst_height;
};
/** A viewport for an output in the scene-graph */
@ -221,6 +222,16 @@ struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_node *parent,
void wlr_scene_buffer_set_source_box(struct wlr_scene_buffer *scene_buffer,
const struct wlr_fbox *box);
/**
* Set the destination size describing the region of the scene-graph the buffer
* will be painted onto. This allows scaling the buffer.
*
* If zero, the destination size will be the buffer size. By default, the
* destination size is zero.
*/
void wlr_scene_buffer_set_dest_size(struct wlr_scene_buffer *scene_buffer,
int width, int height);
/**
* Add a viewport for the specified output to the scene-graph.
*

21
types/scene/wlr_scene.c
View file

@ -283,6 +283,18 @@ void wlr_scene_buffer_set_source_box(struct wlr_scene_buffer *scene_buffer,
scene_node_damage_whole(&scene_buffer->node);
}
void wlr_scene_buffer_set_dest_size(struct wlr_scene_buffer *scene_buffer,
int width, int height) {
if (scene_buffer->dst_width == width && scene_buffer->dst_height == height) {
return;
}
scene_node_damage_whole(&scene_buffer->node);
scene_buffer->dst_width = width;
scene_buffer->dst_height = height;
scene_node_damage_whole(&scene_buffer->node);
}
static struct wlr_texture *scene_buffer_get_texture(
struct wlr_scene_buffer *scene_buffer, struct wlr_renderer *renderer) {
struct wlr_client_buffer *client_buffer =
@ -322,8 +334,13 @@ static void scene_node_get_size(struct wlr_scene_node *node,
break;
case WLR_SCENE_NODE_BUFFER:;
struct wlr_scene_buffer *scene_buffer = scene_buffer_from_node(node);
*width = scene_buffer->buffer->width;
*height = scene_buffer->buffer->height;
if (scene_buffer->dst_width > 0 && scene_buffer->dst_height > 0) {
*width = scene_buffer->dst_width;
*height = scene_buffer->dst_height;
} else {
*width = scene_buffer->buffer->width;
*height = scene_buffer->buffer->height;
}
break;
}
}