xref: /aosp_15_r20/external/skia/tests/sksl/shared/VectorToMatrixCast.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    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 Worker
18*c8dee2aaSAndroid Build Coastguard Workerthread bool operator==(const half2x2 left, const half2x2 right);
19*c8dee2aaSAndroid Build Coastguard Workerthread bool operator!=(const half2x2 left, const half2x2 right);
20*c8dee2aaSAndroid Build Coastguard Worker
21*c8dee2aaSAndroid Build Coastguard Workerthread bool operator==(const float2x2 left, const float2x2 right);
22*c8dee2aaSAndroid Build Coastguard Workerthread bool operator!=(const float2x2 left, const float2x2 right);
23*c8dee2aaSAndroid Build Coastguard Workerthread bool operator==(const half2x2 left, const half2x2 right) {
24*c8dee2aaSAndroid Build Coastguard Worker    return all(left[0] == right[0]) &&
25*c8dee2aaSAndroid Build Coastguard Worker           all(left[1] == right[1]);
26*c8dee2aaSAndroid Build Coastguard Worker}
27*c8dee2aaSAndroid Build Coastguard Workerthread bool operator!=(const half2x2 left, const half2x2 right) {
28*c8dee2aaSAndroid Build Coastguard Worker    return !(left == right);
29*c8dee2aaSAndroid Build Coastguard Worker}
30*c8dee2aaSAndroid Build Coastguard Workerhalf2x2 half2x2_from_half4(half4 x0) {
31*c8dee2aaSAndroid Build Coastguard Worker    return half2x2(half2(x0.xy), half2(x0.zw));
32*c8dee2aaSAndroid Build Coastguard Worker}
33*c8dee2aaSAndroid Build Coastguard Workerthread bool operator==(const float2x2 left, const float2x2 right) {
34*c8dee2aaSAndroid Build Coastguard Worker    return all(left[0] == right[0]) &&
35*c8dee2aaSAndroid Build Coastguard Worker           all(left[1] == right[1]);
36*c8dee2aaSAndroid Build Coastguard Worker}
37*c8dee2aaSAndroid Build Coastguard Workerthread bool operator!=(const float2x2 left, const float2x2 right) {
38*c8dee2aaSAndroid Build Coastguard Worker    return !(left == right);
39*c8dee2aaSAndroid Build Coastguard Worker}
40*c8dee2aaSAndroid Build Coastguard Workerfloat2x2 float2x2_from_float4(float4 x0) {
41*c8dee2aaSAndroid Build Coastguard Worker    return float2x2(float2(x0.xy), float2(x0.zw));
42*c8dee2aaSAndroid Build Coastguard Worker}
43*c8dee2aaSAndroid Build Coastguard Workerfragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
44*c8dee2aaSAndroid Build Coastguard Worker    Outputs _out;
45*c8dee2aaSAndroid Build Coastguard Worker    (void)_out;
46*c8dee2aaSAndroid Build Coastguard Worker    bool ok = true;
47*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(_uniforms.testInputs) == half2x2(half2(-1.25h, 0.0h), half2(0.75h, 2.25h));
48*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && float2x2_from_float4(float4(_uniforms.testInputs)) == float2x2(float2(-1.25, 0.0), float2(0.75, 2.25));
49*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(_uniforms.colorGreen) == half2x2(half2(0.0h, 1.0h), half2(0.0h, 1.0h));
50*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(_uniforms.colorGreen) == half2x2(half2(0.0h, 1.0h), half2(0.0h, 1.0h));
51*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(half4(int4(_uniforms.colorGreen))) == half2x2(half2(0.0h, 1.0h), half2(0.0h, 1.0h));
52*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(_uniforms.colorGreen) == half2x2(half2(0.0h, 1.0h), half2(0.0h, 1.0h));
53*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(_uniforms.colorGreen) == half2x2(half2(0.0h, 1.0h), half2(0.0h, 1.0h));
54*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(half4(bool4(_uniforms.colorGreen))) == half2x2(half2(0.0h, 1.0h), half2(0.0h, 1.0h));
55*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(_uniforms.colorGreen - _uniforms.colorRed) == half2x2(half2(-1.0h, 1.0h), half2(0.0h, 0.0h));
56*c8dee2aaSAndroid Build Coastguard Worker    ok = ok && half2x2_from_half4(_uniforms.colorGreen + 5.0h) == half2x2(half2(5.0h, 6.0h), half2(5.0h, 6.0h));
57*c8dee2aaSAndroid Build Coastguard Worker    _out.sk_FragColor = ok ? _uniforms.colorGreen : _uniforms.colorRed;
58*c8dee2aaSAndroid Build Coastguard Worker    return _out;
59*c8dee2aaSAndroid Build Coastguard Worker}
60