xref: /aosp_15_r20/external/skia/tests/sksl/shared/SwizzleByIndex.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 testInputs;
9*c8dee2aaSAndroid Build Coastguard Worker    half4 colorBlack;
10*c8dee2aaSAndroid Build Coastguard Worker    half4 colorGreen;
11*c8dee2aaSAndroid Build Coastguard Worker    half4 colorRed;
12*c8dee2aaSAndroid Build Coastguard Worker};
13*c8dee2aaSAndroid Build Coastguard Workerstruct Inputs {
14*c8dee2aaSAndroid Build Coastguard Worker};
15*c8dee2aaSAndroid Build Coastguard Workerstruct Outputs {
16*c8dee2aaSAndroid Build Coastguard Worker    half4 sk_FragColor [[color(0)]];
17*c8dee2aaSAndroid Build Coastguard Worker};
18*c8dee2aaSAndroid Build Coastguard Workerfragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
19*c8dee2aaSAndroid Build Coastguard Worker    Outputs _out;
20*c8dee2aaSAndroid Build Coastguard Worker    (void)_out;
21*c8dee2aaSAndroid Build Coastguard Worker    half4 _0_v = _uniforms.testInputs;
22*c8dee2aaSAndroid Build Coastguard Worker    int4 _1_i = int4(_uniforms.colorBlack);
23*c8dee2aaSAndroid Build Coastguard Worker    half _2_x = _0_v[_1_i.x];
24*c8dee2aaSAndroid Build Coastguard Worker    half _3_y = _0_v[_1_i.y];
25*c8dee2aaSAndroid Build Coastguard Worker    half _4_z = _0_v[_1_i.z];
26*c8dee2aaSAndroid Build Coastguard Worker    half _5_w = _0_v[_1_i.w];
27*c8dee2aaSAndroid Build Coastguard Worker    _out.sk_FragColor = all(half4(_2_x, _3_y, _4_z, _5_w) == half4(-1.25h, -1.25h, -1.25h, 0.0h)) ? _uniforms.colorGreen : _uniforms.colorRed;
28*c8dee2aaSAndroid Build Coastguard Worker    return _out;
29*c8dee2aaSAndroid Build Coastguard Worker}
30