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// for 40.4
#include "meta_clip_effect.h"
#include "meta/prefs.h"
#include "shader.h"
typedef struct {
CoglPipeline *pipeline;
ClutterActor *actor;
cairo_rectangle_int_t bounds;
} MetaClipEffectPrivate;
G_DEFINE_TYPE_WITH_PRIVATE(MetaClipEffect, meta_clip_effect, CLUTTER_TYPE_OFFSCREEN_EFFECT)
static CoglPipeline *
meta_clip_effect_class_create_pipeline(ClutterOffscreenEffect *effect,
CoglTexture *texture)
{
MetaClipEffect *clip_effect = META_CLIP_EFFECT (effect);
MetaClipEffectPrivate *priv = meta_clip_effect_get_instance_private(clip_effect);
cogl_pipeline_set_layer_texture (priv->pipeline, 0, texture);
return cogl_object_ref (priv->pipeline);
}
static void
meta_clip_effect_set_actor(ClutterActorMeta *meta,
ClutterActor *actor)
{
ClutterActorMetaClass *meta_class
= CLUTTER_ACTOR_META_CLASS(meta_clip_effect_parent_class);
MetaClipEffectPrivate *priv =
meta_clip_effect_get_instance_private(META_CLIP_EFFECT(meta));
meta_class->set_actor(meta, actor);
priv->actor = clutter_actor_meta_get_actor(meta);
}
static void
meta_clip_effect_dispose(GObject *gobject)
{
MetaClipEffect*effect = META_CLIP_EFFECT(gobject);
MetaClipEffectPrivate *priv =
meta_clip_effect_get_instance_private(META_CLIP_EFFECT(effect));
if (priv->pipeline != NULL)
{
g_clear_pointer(&priv->pipeline, cogl_object_unref);
}
G_OBJECT_CLASS (meta_clip_effect_parent_class)->dispose (gobject);
}
static void
meta_clip_effect_class_init(MetaClipEffectClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterOffscreenEffectClass *offscreen_class = CLUTTER_OFFSCREEN_EFFECT_CLASS (klass);
ClutterActorMetaClass *meta_class = CLUTTER_ACTOR_META_CLASS(klass);
meta_class->set_actor = meta_clip_effect_set_actor;
offscreen_class->create_pipeline = meta_clip_effect_class_create_pipeline;
gobject_class->dispose = meta_clip_effect_dispose;
}
static void
meta_clip_effect_init(MetaClipEffect *self)
{
MetaClipEffectClass *klass = META_CLIP_EFFECT_GET_CLASS (self);
MetaClipEffectPrivate *priv = meta_clip_effect_get_instance_private(self);
if (G_UNLIKELY (klass->base_pipeline == NULL))
{
CoglSnippet *snippet;
CoglContext *ctx =
clutter_backend_get_cogl_context (clutter_get_default_backend ());
klass->base_pipeline = cogl_pipeline_new (ctx);
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_FRAGMENT,
ROUNDED_CLIP_FRAGMENT_SHADER_DECLARATIONS,
ROUNDED_CLIP_FRAGMENT_SHADER_CODE);
cogl_pipeline_add_snippet (klass->base_pipeline, snippet);
cogl_object_unref (snippet);
cogl_pipeline_set_layer_null_texture (klass->base_pipeline, 0);
}
priv->pipeline = cogl_pipeline_copy (klass->base_pipeline);
priv->actor = NULL;
}
MetaClipEffect *meta_clip_effect_new(void)
{
return g_object_new(META_TYPE_CLIP_EFFECT, NULL);
}
void
meta_clip_effect_set_bounds(MetaClipEffect *effect,
cairo_rectangle_int_t *_bounds,
int padding[4])
{
// padding: [left, right, top, bottom]
MetaClipEffectPrivate *priv = meta_clip_effect_get_instance_private(effect);
g_return_if_fail(priv->pipeline && priv->actor);
float radius = meta_prefs_get_round_corner_radius();
float border = meta_prefs_get_border_width();
priv->bounds.x = _bounds->x + padding[0];
priv->bounds.y = _bounds->y + padding[2];
priv->bounds.width = _bounds->width - padding[1] - padding[0];
priv->bounds.height = _bounds->height - padding[2] - padding[3];
float x1 = priv->bounds.x;
float y1 = priv->bounds.y;
float x2 = priv->bounds.width + x1;
float y2 = priv->bounds.height + y1;
float w, h;
clutter_actor_get_size(priv->actor, &w, &h);
int location_skip =
cogl_pipeline_get_uniform_location(priv->pipeline, "skip");
int location_bounds =
cogl_pipeline_get_uniform_location(priv->pipeline, "bounds");
int location_corner_centers_1 =
cogl_pipeline_get_uniform_location(priv->pipeline, "corner_centers_1");
int location_corner_centers_2 =
cogl_pipeline_get_uniform_location(priv->pipeline, "corner_centers_2");
int location_inner_bounds =
cogl_pipeline_get_uniform_location(priv->pipeline, "inner_bounds");
int location_inner_corner_centers_1 =
cogl_pipeline_get_uniform_location(priv->pipeline, "inner_corner_centers_1");
int location_inner_corner_centers_2 =
cogl_pipeline_get_uniform_location(priv->pipeline, "inner_corner_centers_2");
int location_pixel_step =
cogl_pipeline_get_uniform_location(priv->pipeline, "pixel_step");
int location_border_width =
cogl_pipeline_get_uniform_location(priv->pipeline, "border_width");
float bounds[] = { x1, y1, x2, y2 };
float corner_centers_1[] = {
x1 + radius,
y1 + radius,
x2 - radius,
y1 + radius
};
float corner_centers_2[] = {
x2 - radius,
y2 - radius,
x1 + radius,
y2 - radius
};
float inner_bounds[] = { x1 + border, y1 + border, x2 - border, y2 - border };
float inner_corner_centers_1[] = {
x1 + radius,
y1 + radius,
x2 - radius,
y1 + radius
};
float inner_corner_centers_2[] = {
x2 - radius,
y2 - radius,
x1 + radius,
y2 - radius
};
float pixel_step[] = { 1. / w, 1. / h };
cogl_pipeline_set_uniform_float(priv->pipeline,
location_bounds,
4, 1, bounds);
cogl_pipeline_set_uniform_float(priv->pipeline,
location_corner_centers_1,
4, 1, corner_centers_1);
cogl_pipeline_set_uniform_float(priv->pipeline,
location_corner_centers_2,
4, 1, corner_centers_2);
cogl_pipeline_set_uniform_float(priv->pipeline,
location_inner_bounds,
4, 1, inner_bounds);
cogl_pipeline_set_uniform_float(priv->pipeline,
location_inner_corner_centers_1,
4, 1, inner_corner_centers_1);
cogl_pipeline_set_uniform_float(priv->pipeline,
location_inner_corner_centers_2,
4, 1, inner_corner_centers_2);
cogl_pipeline_set_uniform_float(priv->pipeline,
location_pixel_step,
2, 1, pixel_step);
cogl_pipeline_set_uniform_1i(priv->pipeline, location_skip, 0);
cogl_pipeline_set_uniform_1f(priv->pipeline, location_border_width, border);
}
void
meta_clip_effect_skip(MetaClipEffect *effect)
{
MetaClipEffectPrivate *priv = meta_clip_effect_get_instance_private(effect);
g_return_if_fail(priv->pipeline && priv->actor);
int location_skip =
cogl_pipeline_get_uniform_location(priv->pipeline, "skip");
cogl_pipeline_set_uniform_1i(priv->pipeline, location_skip, 1);
}
void
meta_clip_effect_get_bounds(MetaClipEffect *effect,
cairo_rectangle_int_t *bounds)
{
MetaClipEffectPrivate *priv = meta_clip_effect_get_instance_private(effect);
*bounds = priv->bounds;
}
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