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wlr_scene: Allow buffer in wlr_scene_buffer to be NULL
This is useful to emulate an unmapped surface.
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parent
8fe3aa29da
commit
039a31df9a
2 changed files with 11 additions and 2 deletions
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@ -107,6 +107,8 @@ struct wlr_scene_rect {
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/** A scene-graph node displaying a buffer */
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struct wlr_scene_buffer {
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struct wlr_scene_node node;
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// May be NULL
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struct wlr_buffer *buffer;
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// private state
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@ -267,6 +269,8 @@ void wlr_scene_rect_set_color(struct wlr_scene_rect *rect, const float color[sta
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/**
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* Add a node displaying a buffer to the scene-graph.
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*
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* If the buffer is NULL, this node will not be displayed.
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*/
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struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_node *parent,
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struct wlr_buffer *buffer);
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@ -358,7 +358,9 @@ struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_node *parent,
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}
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scene_node_init(&scene_buffer->node, WLR_SCENE_NODE_BUFFER, parent);
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scene_buffer->buffer = wlr_buffer_lock(buffer);
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if (buffer) {
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scene_buffer->buffer = wlr_buffer_lock(buffer);
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}
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scene_node_damage_whole(&scene_buffer->node);
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@ -447,7 +449,7 @@ static void scene_node_get_size(struct wlr_scene_node *node,
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if (scene_buffer->dst_width > 0 && scene_buffer->dst_height > 0) {
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*width = scene_buffer->dst_width;
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*height = scene_buffer->dst_height;
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} else {
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} else if (scene_buffer->buffer) {
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if (scene_buffer->transform & WL_OUTPUT_TRANSFORM_90) {
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*height = scene_buffer->buffer->width;
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*width = scene_buffer->buffer->height;
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@ -838,6 +840,9 @@ static void render_node_iterator(struct wlr_scene_node *node,
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break;
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case WLR_SCENE_NODE_BUFFER:;
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struct wlr_scene_buffer *scene_buffer = scene_buffer_from_node(node);
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if (!scene_buffer->buffer) {
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return;
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}
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struct wlr_renderer *renderer = output->renderer;
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texture = scene_buffer_get_texture(scene_buffer, renderer);
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