skia2/tests/sksl/shared/MatrixToVectorCast.metal
John Stiles 49c417621b Shore up matrix/vector conversion tests.
The tests now check bool4-mat2 conversions, which fortunately do work,
and the vector-to-matrix tests include int and bool conversions as well.

Change-Id: I971271838a93081b9258deb7c1d13b7732fb2440
Bug: skia:12067
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/426757
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-07-12 15:02:51 +00:00

28 lines
1.0 KiB
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float4 colorGreen;
float4 colorRed;
float2x2 testMatrix2x2;
};
struct Inputs {
};
struct Outputs {
float4 sk_FragColor [[color(0)]];
};
float4 float4_from_float2x2(float2x2 x) {
return float4(x[0].xy, x[1].xy);
}
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out;
(void)_out;
bool ok = true;
ok = ok && all(float4_from_float2x2(_uniforms.testMatrix2x2) == float4(1.0, 2.0, 3.0, 4.0));
ok = ok && all(float4_from_float2x2(_uniforms.testMatrix2x2) == float4(1.0, 2.0, 3.0, 4.0));
ok = ok && all(int4(float4_from_float2x2(_uniforms.testMatrix2x2)) == int4(1, 2, 3, 4));
ok = ok && all(bool4(float4_from_float2x2(_uniforms.testMatrix2x2)) == bool4(true, true, true, true));
_out.sk_FragColor = ok ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}