xref: /aosp_15_r20/external/skia/tests/sksl/shared/MatrixToVectorCast.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    half2x2 testMatrix2x2;
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 Worker
18*c8dee2aaSAndroid Build Coastguard Workerhalf4 half4_from_half2x2(half2x2 x) {
19*c8dee2aaSAndroid Build Coastguard Worker    return half4(x[0].xy, x[1].xy);
20*c8dee2aaSAndroid Build Coastguard Worker}
21*c8dee2aaSAndroid Build Coastguard Workerfragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
22*c8dee2aaSAndroid Build Coastguard Worker    Outputs _out;
23*c8dee2aaSAndroid Build Coastguard Worker    (void)_out;
24*c8dee2aaSAndroid Build Coastguard Worker    bool ok = true;
25*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && all(half4_from_half2x2(_uniforms.testMatrix2x2) == half4(1.0h, 2.0h, 3.0h, 4.0h));
26*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && all(float4(half4_from_half2x2(_uniforms.testMatrix2x2)) == float4(1.0, 2.0, 3.0, 4.0));
27*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && all(int4(half4_from_half2x2(_uniforms.testMatrix2x2)) == int4(1, 2, 3, 4));
28*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && all(bool4(half4_from_half2x2(_uniforms.testMatrix2x2)) == bool4(true));
29*c8dee2aaSAndroid Build Coastguard Worker    _out.sk_FragColor = ok ? _uniforms.colorGreen : _uniforms.colorRed;
30*c8dee2aaSAndroid Build Coastguard Worker    return _out;
31*c8dee2aaSAndroid Build Coastguard Worker}
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