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scene: add transfer function support for wlr_scene_buffer

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This commit is contained in:
Simon Ser 2025-02-23 15:09:34 +01:00
parent 8d1c6e42ac
commit 4efec11721
2 changed files with 18 additions and 0 deletions
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4
include/wlr/types/wlr_scene.h
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@ -192,6 +192,7 @@ struct wlr_scene_buffer {
int dst_width, dst_height;
enum wl_output_transform transform;
pixman_region32_t opaque_region;
enum wlr_color_transfer_function transfer_function;
struct {
uint64_t active_outputs;
@ -541,6 +542,9 @@ void wlr_scene_buffer_set_opacity(struct wlr_scene_buffer *scene_buffer,
void wlr_scene_buffer_set_filter_mode(struct wlr_scene_buffer *scene_buffer,
enum wlr_scale_filter_mode filter_mode);
void wlr_scene_buffer_set_transfer_function(struct wlr_scene_buffer *scene_buffer,
enum wlr_color_transfer_function transfer_function);
/**
* Calls the buffer's frame_done signal.
*/

14
types/scene/wlr_scene.c
View file

@ -1099,6 +1099,16 @@ void wlr_scene_buffer_set_filter_mode(struct wlr_scene_buffer *scene_buffer,
scene_node_update(&scene_buffer->node, NULL);
}
void wlr_scene_buffer_set_transfer_function(struct wlr_scene_buffer *scene_buffer,
enum wlr_color_transfer_function transfer_function) {
if (scene_buffer->transfer_function == transfer_function) {
return;
}
scene_buffer->transfer_function = transfer_function;
scene_node_update(&scene_buffer->node, NULL);
}
static struct wlr_texture *scene_buffer_get_texture(
struct wlr_scene_buffer *scene_buffer, struct wlr_renderer *renderer) {
if (scene_buffer->buffer == NULL || scene_buffer->texture != NULL) {
@ -1446,6 +1456,7 @@ static void scene_entry_render(struct render_list_entry *entry, const struct ren
.blend_mode = !data->output->scene->calculate_visibility ||
!pixman_region32_empty(&opaque) ?
WLR_RENDER_BLEND_MODE_PREMULTIPLIED : WLR_RENDER_BLEND_MODE_NONE,
.transfer_function = scene_buffer->transfer_function,
.wait_timeline = scene_buffer->wait_timeline,
.wait_point = scene_buffer->wait_point,
});
@ -1936,6 +1947,9 @@ static enum scene_direct_scanout_result scene_entry_try_direct_scanout(
if (buffer->transform != data->transform) {
return SCANOUT_INELIGIBLE;
}
if (buffer->transfer_function != 0 && buffer->transfer_function != WLR_COLOR_TRANSFER_FUNCTION_SRGB) {
return false;
}
// We want to ensure optimal buffer selection, but as direct-scanout can be enabled and disabled
// on a frame-by-frame basis, we wait for a few frames to send the new format recommendations.