xref: /aosp_15_r20/external/skia/tests/sksl/shared/SwizzleOpt.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    half4 colorRed;
9*c8dee2aaSAndroid Build Coastguard Worker    half4 colorGreen;
10*c8dee2aaSAndroid Build Coastguard Worker    half4 testInputs;
11*c8dee2aaSAndroid Build Coastguard Worker};
12*c8dee2aaSAndroid Build Coastguard Workerstruct Inputs {
13*c8dee2aaSAndroid Build Coastguard Worker};
14*c8dee2aaSAndroid Build Coastguard Workerstruct Outputs {
15*c8dee2aaSAndroid Build Coastguard Worker    half4 sk_FragColor [[color(0)]];
16*c8dee2aaSAndroid Build Coastguard Worker};
17*c8dee2aaSAndroid Build Coastguard Workerhalf fn_hh4(half4 v) {
18*c8dee2aaSAndroid Build Coastguard Worker    for (int x = 1;x <= 2; ++x) {
19*c8dee2aaSAndroid Build Coastguard Worker        return v.x;
20*c8dee2aaSAndroid Build Coastguard Worker    }
21*c8dee2aaSAndroid Build Coastguard Worker}
22*c8dee2aaSAndroid Build Coastguard Workerfragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
23*c8dee2aaSAndroid Build Coastguard Worker    Outputs _out;
24*c8dee2aaSAndroid Build Coastguard Worker    (void)_out;
25*c8dee2aaSAndroid Build Coastguard Worker    half4 v = _uniforms.testInputs;
26*c8dee2aaSAndroid Build Coastguard Worker    v = half4(0.0h, v.zyx);
27*c8dee2aaSAndroid Build Coastguard Worker    v = half4(0.0h, 0.0h, v.xw);
28*c8dee2aaSAndroid Build Coastguard Worker    v = half4(1.0h, 1.0h, v.wx);
29*c8dee2aaSAndroid Build Coastguard Worker    v = half4(v.zy, 1.0h, 1.0h);
30*c8dee2aaSAndroid Build Coastguard Worker    v = half4(v.xx, 1.0h, 1.0h);
31*c8dee2aaSAndroid Build Coastguard Worker    v = v.wzwz;
32*c8dee2aaSAndroid Build Coastguard Worker    v = half3(fn_hh4(v), 123.0h, 456.0h).yyzz;
33*c8dee2aaSAndroid Build Coastguard Worker    v = half3(fn_hh4(v), 123.0h, 456.0h).yyzz;
34*c8dee2aaSAndroid Build Coastguard Worker    v = half4(123.0h, 456.0h, 456.0h, fn_hh4(v));
35*c8dee2aaSAndroid Build Coastguard Worker    v = half4(123.0h, 456.0h, 456.0h, fn_hh4(v));
36*c8dee2aaSAndroid Build Coastguard Worker    v = half3(fn_hh4(v), 123.0h, 456.0h).yxxz;
37*c8dee2aaSAndroid Build Coastguard Worker    v = half3(fn_hh4(v), 123.0h, 456.0h).yxxz;
38*c8dee2aaSAndroid Build Coastguard Worker    v = half4(1.0h, 1.0h, 2.0h, 3.0h);
39*c8dee2aaSAndroid Build Coastguard Worker    v = half4(_uniforms.colorRed.xyz, 1.0h);
40*c8dee2aaSAndroid Build Coastguard Worker    v = half4(_uniforms.colorRed.x, 1.0h, _uniforms.colorRed.yz);
41*c8dee2aaSAndroid Build Coastguard Worker    v.wzyx = v;
42*c8dee2aaSAndroid Build Coastguard Worker    v.xw = v.yz;
43*c8dee2aaSAndroid Build Coastguard Worker    v.zyx = half3(v.ww, 1.0h);
44*c8dee2aaSAndroid Build Coastguard Worker    _out.sk_FragColor = all(v == half4(1.0h)) ? _uniforms.colorGreen : _uniforms.colorRed;
45*c8dee2aaSAndroid Build Coastguard Worker    return _out;
46*c8dee2aaSAndroid Build Coastguard Worker}
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