1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
// 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;
int bounds_uniform;
int clip_radius_uniform;
int inner_bounds_uniform;
int inner_clip_radius_uniform;
int pixel_step_uniform;
int skip_uniform;
int border_width_uniform;
int border_brightness_uniform;
} 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 gboolean
meta_clip_effect_pre_paint (ClutterEffect *effect,
ClutterPaintNode *node,
ClutterPaintContext *paint_context)
{
gboolean res =
CLUTTER_EFFECT_CLASS (meta_clip_effect_parent_class)->pre_paint(effect, node, paint_context);
MetaClipEffect *clip_effect = META_CLIP_EFFECT (effect);
MetaClipEffectPrivate *priv =
meta_clip_effect_get_instance_private(META_CLIP_EFFECT(clip_effect));
// seems CutterOffscreenEffect will set COGL_PIPELINE_FILTER_NEAREST
// as layer filter, force set linear filter before paint now
cogl_pipeline_set_layer_filters (priv->pipeline,
0,
COGL_PIPELINE_FILTER_LINEAR,
COGL_PIPELINE_FILTER_LINEAR);
return res;
}
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);
ClutterEffectClass *effect_class = CLUTTER_EFFECT_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;
effect_class->pre_paint = meta_clip_effect_pre_paint;
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;
// get location of uniforms from shader
priv->bounds_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "bounds");
priv->clip_radius_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "clip_radius");
priv->inner_bounds_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "inner_bounds");
priv->inner_clip_radius_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "inner_clip_radius");
priv->pixel_step_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "pixel_step");
priv->skip_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "skip");
priv->border_width_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "border_width");
priv->border_brightness_uniform =
cogl_pipeline_get_uniform_location(priv->pipeline, "border_brightness");
}
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();
float brightness = meta_prefs_get_border_brightness();
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);
float bounds[] = { x1, y1, x2, y2 };
float inner_bounds[] = { x1 + border, y1 + border, x2 - border, y2 - border };
float inner_radius = radius - border;
if (inner_radius < 0.0f) {
inner_radius = 0.0f;
}
float pixel_step[] = { 1. / w, 1. / h };
cogl_pipeline_set_uniform_float(priv->pipeline,
priv->bounds_uniform,
4, 1, bounds);
cogl_pipeline_set_uniform_1f(priv->pipeline,
priv->clip_radius_uniform,
radius);
cogl_pipeline_set_uniform_float(priv->pipeline,
priv->inner_bounds_uniform,
4, 1, inner_bounds);
cogl_pipeline_set_uniform_1f(priv->pipeline,
priv->inner_clip_radius_uniform,
inner_radius);
cogl_pipeline_set_uniform_float(priv->pipeline,
priv->pixel_step_uniform,
2, 1, pixel_step);
cogl_pipeline_set_uniform_1i(priv->pipeline, priv->skip_uniform, 0);
cogl_pipeline_set_uniform_1f(priv->pipeline, priv->border_width_uniform, border);
cogl_pipeline_set_uniform_1f(priv->pipeline, priv->border_brightness_uniform, brightness);
}
void
meta_clip_effect_skip(MetaClipEffect *effect)
{
MetaClipEffectPrivate *priv = meta_clip_effect_get_instance_private(effect);
g_return_if_fail(priv->pipeline && priv->actor);
cogl_pipeline_set_uniform_1i(priv->pipeline, priv->skip_uniform, 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;
}
|