xref: /aosp_15_r20/external/skia/tests/sksl/shared/SwizzleAsLValue.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 colorGreen;
9*c8dee2aaSAndroid Build Coastguard Worker    half4 colorRed;
10*c8dee2aaSAndroid Build Coastguard Worker};
11*c8dee2aaSAndroid Build Coastguard Workerstruct Inputs {
12*c8dee2aaSAndroid Build Coastguard Worker};
13*c8dee2aaSAndroid Build Coastguard Workerstruct Outputs {
14*c8dee2aaSAndroid Build Coastguard Worker    half4 sk_FragColor [[color(0)]];
15*c8dee2aaSAndroid Build Coastguard Worker};
16*c8dee2aaSAndroid Build Coastguard Workerfragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
17*c8dee2aaSAndroid Build Coastguard Worker    Outputs _out;
18*c8dee2aaSAndroid Build Coastguard Worker    (void)_out;
19*c8dee2aaSAndroid Build Coastguard Worker    float4 scalar;
20*c8dee2aaSAndroid Build Coastguard Worker    array<float4, 1> array;
21*c8dee2aaSAndroid Build Coastguard Worker    scalar = float4(_uniforms.colorGreen) * 0.5;
22*c8dee2aaSAndroid Build Coastguard Worker    scalar.w = 2.0;
23*c8dee2aaSAndroid Build Coastguard Worker    scalar.y = scalar.y * 4.0;
24*c8dee2aaSAndroid Build Coastguard Worker    scalar.yzw = scalar.yzw * float3x3(0.5);
25*c8dee2aaSAndroid Build Coastguard Worker    scalar.zywx = scalar.zywx + float4(0.25, 0.0, 0.0, 0.75);
26*c8dee2aaSAndroid Build Coastguard Worker    scalar.x = scalar.x + (scalar.w <= 1.0 ? scalar.z : 0.0);
27*c8dee2aaSAndroid Build Coastguard Worker    array[0] = float4(_uniforms.colorGreen) * 0.5;
28*c8dee2aaSAndroid Build Coastguard Worker    array[0].w = 2.0;
29*c8dee2aaSAndroid Build Coastguard Worker    array[0].y = array[0].y * 4.0;
30*c8dee2aaSAndroid Build Coastguard Worker    array[0].yzw = array[0].yzw * float3x3(0.5);
31*c8dee2aaSAndroid Build Coastguard Worker    array[0].zywx = array[0].zywx + float4(0.25, 0.0, 0.0, 0.75);
32*c8dee2aaSAndroid Build Coastguard Worker    array[0].x = array[0].x + (array[0].w <= 1.0 ? array[0].z : 0.0);
33*c8dee2aaSAndroid Build Coastguard Worker    _out.sk_FragColor = all(scalar == float4(1.0, 1.0, 0.25, 1.0)) && all(array[0] == float4(1.0, 1.0, 0.25, 1.0)) ? _uniforms.colorGreen : _uniforms.colorRed;
34*c8dee2aaSAndroid Build Coastguard Worker    return _out;
35*c8dee2aaSAndroid Build Coastguard Worker}
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