xref: /aosp_15_r20/external/skia/tests/sksl/intrinsics/Refract.hlsl (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1cbuffer _UniformBuffer : register(b0, space0)
2{
3    float _7_a : packoffset(c0);
4    float _7_b : packoffset(c0.y);
5    float _7_c : packoffset(c0.z);
6    float4 _7_d : packoffset(c1);
7    float4 _7_e : packoffset(c2);
8};
9
10
11static float4 sk_FragColor;
12
13struct SPIRV_Cross_Output
14{
15    float4 sk_FragColor : SV_Target0;
16};
17
18float spvRefract(float i, float n, float eta)
19{
20    float NoI = n * i;
21    float NoI2 = NoI * NoI;
22    float k = 1.0 - eta * eta * (1.0 - NoI2);
23    if (k < 0.0)
24    {
25        return 0.0;
26    }
27    else
28    {
29        return eta * i - (eta * NoI + sqrt(k)) * n;
30    }
31}
32
33float4 main(float2 _21)
34{
35    float4 result = spvRefract(600000015226585740692422656.0f, 2.0f, 2.0f).xxxx;
36    result.x = spvRefract(_7_a, _7_b, _7_c);
37    result = refract(_7_d, _7_e, _7_c);
38    result = float4(float2(0.5f, -0.866025388240814208984375f).x, float2(0.5f, -0.866025388240814208984375f).y, result.z, result.w);
39    result = float4(float3(0.5f, 0.0f, -0.866025388240814208984375f).x, float3(0.5f, 0.0f, -0.866025388240814208984375f).y, float3(0.5f, 0.0f, -0.866025388240814208984375f).z, result.w);
40    result = float4(0.5f, 0.0f, 0.0f, -0.866025388240814208984375f);
41    return float4(0.5f, 0.0f, 0.0f, -0.866025388240814208984375f);
42}
43
44void frag_main()
45{
46    float2 _17 = 0.0f.xx;
47    sk_FragColor = main(_17);
48}
49
50SPIRV_Cross_Output main()
51{
52    frag_main();
53    SPIRV_Cross_Output stage_output;
54    stage_output.sk_FragColor = sk_FragColor;
55    return stage_output;
56}
57