xref: /aosp_15_r20/external/skia/tests/sksl/intrinsics/Fwidth.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 colorGreen;
10*c8dee2aaSAndroid Build Coastguard Worker    half4 colorRed;
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 Workerfragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
18*c8dee2aaSAndroid Build Coastguard Worker    Outputs _out;
19*c8dee2aaSAndroid Build Coastguard Worker    (void)_out;
20*c8dee2aaSAndroid Build Coastguard Worker    half4 expected = half4(0.0h);
21*c8dee2aaSAndroid Build Coastguard Worker    _out.sk_FragColor = (((((((dfdx(_uniforms.testInputs.x) == expected.x && all(dfdx(_uniforms.testInputs.xy) == expected.xy)) && all(dfdx(_uniforms.testInputs.xyz) == expected.xyz)) && all(dfdx(_uniforms.testInputs) == expected)) && all(sign(fwidth(coords.xx)) == float2(1.0))) && all(sign(fwidth(float2(coords.x, 1.0))) == float2(1.0, 0.0))) && all(sign(fwidth(coords.yy)) == float2(1.0))) && all(sign(fwidth(float2(0.0, coords.y))) == float2(0.0, 1.0))) && all(sign(fwidth(coords)) == float2(1.0)) ? _uniforms.colorGreen : _uniforms.colorRed;
22*c8dee2aaSAndroid Build Coastguard Worker    return _out;
23*c8dee2aaSAndroid Build Coastguard Worker}
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