yum-mirror/glslang

git clone https://git.yummers.dev/yum-mirror/glslang

John KessenichSPV: Implement Vulkan version of GLSL (KHR_vulkan_glsl).6c292d3b

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1.3 KiB63 linesraw
1#version 400
2
3in float u;
4
5int foo(int a, const int b, in int c, const in int d, out int e, inout int f)
6{
7    int sum = a + b + c + d + f; // no e, it is out only
8	// sum should be 47 now
9
10	a *= 64;
11	// no b, it is read only
12	c *= 64;
13	// no d, it is read only
14	e = 64 * 16; // e starts undefined
15	f *= 64;
16
17	sum += a + 64 * b + c + 64 * d + e + f; // everything has a value now, totaling of 64(1+2+4+8+16+32) = 64*63 = 4032
18	// sum should be 4032 + 47  = 4079
19	
20	return sum;
21}
22
23int foo2(float a, vec3 b, out int r)
24{
25    r = int(3.0 * a);
26    return int(5.0 * b.y);
27}
28
29int foo3()
30{
31    if (u > 3.2) {
32        discard;
33        return 1000000;
34    }
35
36    return 2000000;
37}
38
39void main()
40{
41    int e;
42	int t = 2;
43	struct s {
44	    ivec4 t;
45	} f;
46	f.t.y = 32;
47
48    // test the different qualifers
49    int color = foo(1, 2, t+t, 8, e, f.t.y);
50
51	color += 128 * (e + f.t.y); // right side should be 128(64(16 + 32)) = 393216
52	// sum should be 4079 + 393216 = 397295
53    
54    // test conversions
55    float arg;
56    float ret;
57    ret = foo2(4, ivec3(1,2,3), arg);  // ret = 10, param = 12.0
58    color += int(ret + arg); // adds 22, for total of 397317
59
60    color += foo3();         // theoretically, add 2000000, for total of 2397317
61
62    gl_FragColor = vec4(color);
63}