xref: /aosp_15_r20/external/skia/tests/sksl/shared/ResizeMatrix.metal (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1#include <metal_stdlib>
2#include <simd/simd.h>
3#ifdef __clang__
4#pragma clang diagnostic ignored "-Wall"
5#endif
6using namespace metal;
7struct Uniforms {
8    half4 colorGreen;
9    half4 colorRed;
10};
11struct Inputs {
12};
13struct Outputs {
14    half4 sk_FragColor [[color(0)]];
15};
16float2x2 float2x2_from_float3x3(float3x3 x0) {
17    return float2x2(float2(x0[0].xy), float2(x0[1].xy));
18}
19float2x2 float2x2_from_float4x4(float4x4 x0) {
20    return float2x2(float2(x0[0].xy), float2(x0[1].xy));
21}
22float3x3 float3x3_from_float4x4(float4x4 x0) {
23    return float3x3(float3(x0[0].xyz), float3(x0[1].xyz), float3(x0[2].xyz));
24}
25float3x3 float3x3_from_float2x2(float2x2 x0) {
26    return float3x3(float3(x0[0].xy, 0.0), float3(x0[1].xy, 0.0), float3(0.0, 0.0, 1.0));
27}
28float4x4 float4x4_from_float3x3(float3x3 x0) {
29    return float4x4(float4(x0[0].xyz, 0.0), float4(x0[1].xyz, 0.0), float4(x0[2].xyz, 0.0), float4(0.0, 0.0, 0.0, 1.0));
30}
31fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
32    Outputs _out;
33    (void)_out;
34    float result = 0.0;
35    float2x2 a = float2x2_from_float3x3(float3x3(1.0));
36    result += a[0].x;
37    float2x2 b = float2x2_from_float4x4(float4x4(1.0));
38    result += b[0].x;
39    float3x3 c = float3x3_from_float4x4(float4x4(1.0));
40    result += c[0].x;
41    float3x3 d = float3x3_from_float2x2(float2x2(1.0));
42    result += d[0].x;
43    float4x4 e = float4x4_from_float3x3(float3x3_from_float2x2(float2x2(1.0)));
44    result += e[0].x;
45    float2x2 f = float2x2_from_float3x3(float3x3_from_float4x4(float4x4(1.0)));
46    result += f[0].x;
47    _out.sk_FragColor = result == 6.0 ? _uniforms.colorGreen : _uniforms.colorRed;
48    return _out;
49}
50