blob: d08c95dd079336696e419dd79ddba8f1b3502fee (
plain)
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
|
#define SOURCE_TEXTURE_RGBA 1
#define SOURCE_TEXTURE_RGBX 2
#define SOURCE_TEXTURE_EXTERNAL 3
#if !defined(SOURCE)
#error "Missing shader preamble"
#endif
#if SOURCE == SOURCE_TEXTURE_EXTERNAL
#extension GL_OES_EGL_image_external : require
#endif
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif
varying vec2 v_texcoord;
#if SOURCE == SOURCE_TEXTURE_EXTERNAL
uniform samplerExternalOES tex;
#elif SOURCE == SOURCE_TEXTURE_RGBA || SOURCE == SOURCE_TEXTURE_RGBX
uniform sampler2D tex;
#endif
uniform float alpha;
uniform vec2 size;
uniform vec2 position;
uniform float radius;
uniform bool has_titlebar;
uniform bool discard_transparent;
uniform float dim;
uniform vec4 dim_color;
vec4 sample_texture() {
#if SOURCE == SOURCE_TEXTURE_RGBA || SOURCE == SOURCE_TEXTURE_EXTERNAL
return texture2D(tex, v_texcoord);
#elif SOURCE == SOURCE_TEXTURE_RGBX
return vec4(texture2D(tex, v_texcoord).rgb, 1.0);
#endif
}
void main() {
gl_FragColor = mix(sample_texture(), dim_color, dim) * alpha;
if (!has_titlebar || gl_FragCoord.y - position.y > radius) {
vec2 corner_distance = min(gl_FragCoord.xy - position, size + position - gl_FragCoord.xy);
if (max(corner_distance.x, corner_distance.y) < radius) {
float d = radius - distance(corner_distance, vec2(radius));
float smooth = smoothstep(-1.0, 0.5, d);
gl_FragColor = mix(vec4(0), gl_FragColor, smooth);
}
}
if (discard_transparent && gl_FragColor.a == 0.0) {
discard;
}
}
|
