xref: /aosp_15_r20/external/skia/tests/sksl/intrinsics/Refract.metal (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker#include <metal_stdlib>
2*c8dee2aaSAndroid Build Coastguard Worker#include <simd/simd.h>
3*c8dee2aaSAndroid Build Coastguard Worker#ifdef __clang__
4*c8dee2aaSAndroid Build Coastguard Worker#pragma clang diagnostic ignored "-Wall"
5*c8dee2aaSAndroid Build Coastguard Worker#endif
6*c8dee2aaSAndroid Build Coastguard Workerusing namespace metal;
7*c8dee2aaSAndroid Build Coastguard Workerstruct Uniforms {
8*c8dee2aaSAndroid Build Coastguard Worker    half a;
9*c8dee2aaSAndroid Build Coastguard Worker    half b;
10*c8dee2aaSAndroid Build Coastguard Worker    half c;
11*c8dee2aaSAndroid Build Coastguard Worker    half4 d;
12*c8dee2aaSAndroid Build Coastguard Worker    half4 e;
13*c8dee2aaSAndroid Build Coastguard Worker};
14*c8dee2aaSAndroid Build Coastguard Workerstruct Inputs {
15*c8dee2aaSAndroid Build Coastguard Worker};
16*c8dee2aaSAndroid Build Coastguard Workerstruct Outputs {
17*c8dee2aaSAndroid Build Coastguard Worker    half4 sk_FragColor [[color(0)]];
18*c8dee2aaSAndroid Build Coastguard Worker};
19*c8dee2aaSAndroid Build Coastguard Workerfragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
20*c8dee2aaSAndroid Build Coastguard Worker    Outputs _out;
21*c8dee2aaSAndroid Build Coastguard Worker    (void)_out;
22*c8dee2aaSAndroid Build Coastguard Worker    half4 result = half4((refract(float2(6e+26h, 0), float2(2.0h, 0), 2.0h).x));
23*c8dee2aaSAndroid Build Coastguard Worker    result.x = (refract(float2(_uniforms.a, 0), float2(_uniforms.b, 0), _uniforms.c).x);
24*c8dee2aaSAndroid Build Coastguard Worker    result = refract(_uniforms.d, _uniforms.e, _uniforms.c);
25*c8dee2aaSAndroid Build Coastguard Worker    result.xy = half2(0.5h, -0.8660254h);
26*c8dee2aaSAndroid Build Coastguard Worker    result.xyz = half3(0.5h, 0.0h, -0.8660254h);
27*c8dee2aaSAndroid Build Coastguard Worker    result = half4(0.5h, 0.0h, 0.0h, -0.8660254h);
28*c8dee2aaSAndroid Build Coastguard Worker    _out.sk_FragColor = result;
29*c8dee2aaSAndroid Build Coastguard Worker    return _out;
30*c8dee2aaSAndroid Build Coastguard Worker}
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