blob: 588457ecde0f5b7904577eca7150fc6da172d0aa (
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
*/
attribute vec4 gtf_Vertex;
uniform mat4 gtf_ModelViewProjectionMatrix;
varying vec4 color;
// Function declarations.
bool function(bool par[3]);
bool is_all(const in bool array[3], const in bool value);
void set_all(out bool array[3], const in bool value);
void main (void)
{
bool par[3];
bool ret = false;
float gray = 0.0;
// Initialize the entire array to true.
set_all(par, true);
ret = function(par);
// The parameter should remain unchanged by the function and the function should return true.
if(is_all(par, true) && ret)
{
gray = 1.0;
}
color = vec4(gray, gray, gray, 1.0);
gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
}
// Function definitions.
bool function(bool par[3])
{
// Return the value of the array.
if(is_all(par, true))
{
// Test parameter qualifier (default is "in").
set_all(par, false);
return true;
}
else
return false;
}
bool is_all(const in bool array[3], const in bool value)
{
bool ret = true;
if(array[0] != value)
ret = false;
if(array[1] != value)
ret = false;
if(array[2] != value)
ret = false;
return ret;
}
void set_all(out bool array[3], const in bool value)
{
array[0] = value;
array[1] = value;
array[2] = value;
}
|
