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
|
[require]
GLSL >= 1.40
GL_ARB_shader_atomic_counters
GL_ARB_shader_atomic_counter_ops
SIZE 16 16
[vertex shader passthrough]
[fragment shader]
/* This is just a touch-test to make sure that all of the new atomic functions
* are compiled by the driver and can execute. The results of the atomic
* operations are not checked.
*/
#version 140
#extension GL_ARB_shader_atomic_counters: require
#extension GL_ARB_shader_atomic_counter_ops: require
out vec4 color;
layout(binding = 0, offset = 0) uniform atomic_uint c0;
layout(binding = 0, offset = 4) uniform atomic_uint c1;
layout(binding = 0, offset = 8) uniform atomic_uint c2;
layout(binding = 0, offset = 12) uniform atomic_uint c3;
layout(binding = 0, offset = 16) uniform atomic_uint c4;
layout(binding = 0, offset = 20) uniform atomic_uint c5;
layout(binding = 0, offset = 24) uniform atomic_uint c6;
layout(binding = 0, offset = 28) uniform atomic_uint c7;
uniform uint data[16];
void main()
{
uint x = uint(gl_FragCoord.x) + 16u * uint(gl_FragCoord.y);
switch (x % 9u) {
case 0u:
atomicCounterAddARB(c0, data[int(gl_FragCoord.y)]);
break;
case 1u:
atomicCounterSubtractARB(c1, data[int(gl_FragCoord.y)]);
break;
case 2u:
atomicCounterMinARB(c2, data[int(gl_FragCoord.y)]);
break;
case 3u:
atomicCounterMaxARB(c3, data[int(gl_FragCoord.y)]);
break;
case 4u:
atomicCounterAndARB(c4, data[int(gl_FragCoord.y)]);
break;
case 5u:
atomicCounterOrARB(c5, data[int(gl_FragCoord.y)]);
break;
case 6u:
atomicCounterXorARB(c6, data[int(gl_FragCoord.y)]);
break;
case 7u:
atomicCounterExchangeARB(c7, data[int(gl_FragCoord.y)]);
break;
case 8u:
atomicCounterCompSwapARB(c0,
data[int(gl_FragCoord.y)],
data[int(gl_FragCoord.x)]);
break;
}
color = vec4(0, 1, 0, 1);
}
[test]
atomic counters 8
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 1.0
|
