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st/private: Add _st_snapshot_shadow_with_opacity

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It's unused for now, but next commits will use it.
This commit is contained in:
Georges Basile Stavracas Neto 2024-06-14 18:19:26 -03:00
parent 0cdddaa4a7
commit 6ba166660f
2 changed files with 34 additions and 0 deletions
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28
src/st/st-private.c
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@ -799,3 +799,31 @@ _st_paint_shadow_with_opacity (StShadow *shadow_spec,
shadow_box.x1, shadow_box.y1,
shadow_box.x2, shadow_box.y2);
}
void
_st_snapshot_shadow_with_opacity (StShadow *shadow_spec,
ClutterSnapshot *snapshot,
CoglPipeline *shadow_pipeline,
ClutterActorBox *box,
guint8 paint_opacity)
{
ClutterActorBox shadow_box;
CoglColor color;
g_return_if_fail (shadow_spec != NULL);
g_return_if_fail (shadow_pipeline != NULL);
st_shadow_get_box (shadow_spec, box, &shadow_box);
cogl_color_init_from_4f (&color,
shadow_spec->color.red / 255.0 * paint_opacity / 255.0,
shadow_spec->color.green / 255.0 * paint_opacity / 255.0,
shadow_spec->color.blue / 255.0 * paint_opacity / 255.0,
shadow_spec->color.alpha / 255.0 * paint_opacity / 255.0);
cogl_color_premultiply (&color);
cogl_pipeline_set_layer_combine_constant (shadow_pipeline, 0, &color);
clutter_snapshot_push_pipeline (snapshot, shadow_pipeline);
clutter_snapshot_add_rectangle (snapshot, &shadow_box);
clutter_snapshot_pop (snapshot);
}

6
src/st/st-private.h
View file

@ -72,4 +72,10 @@ void _st_paint_shadow_with_opacity (StShadow *shadow_spec,
ClutterActorBox *box,
guint8 paint_opacity);
void _st_snapshot_shadow_with_opacity (StShadow *shadow_spec,
ClutterSnapshot *snapshot,
CoglPipeline *shadow_pipeline,
ClutterActorBox *box,
guint8 paint_opacity);
#endif /* __ST_PRIVATE_H__ */