skia2/tests/sksl/intrinsics/Distance.metal
John Stiles e1c2beb3be Implement compile-time optimization for distance().
float distance($genType p0, $genType p1);
half distance($genHType p0, $genHType p1);

Change-Id: I492a90c0fe5c950c878752d45c3b2dc6f2cd866e
Bug: skia:12034
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/412379
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2021-05-26 14:11:58 +00:00

22 lines
928 B
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float4 pos1;
float4 pos2;
float4 colorGreen;
float4 colorRed;
};
struct Inputs {
};
struct Outputs {
float4 sk_FragColor [[color(0)]];
};
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out;
(void)_out;
float4 expected = float4(3.0, 3.0, 5.0, 13.0);
_out.sk_FragColor = ((((((abs(_uniforms.pos1.x - _uniforms.pos2.x) == expected.x && distance(_uniforms.pos1.xy, _uniforms.pos2.xy) == expected.y) && distance(_uniforms.pos1.xyz, _uniforms.pos2.xyz) == expected.z) && distance(_uniforms.pos1, _uniforms.pos2) == expected.w) && 3.0 == expected.x) && 3.0 == expected.y) && 5.0 == expected.z) && 13.0 == expected.w ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}