skia2/tests/sksl/intrinsics/Length.metal
John Stiles 9b2baac1d6 Implement compile-time optimization for length().
float length($genType x);
half length($genHType x);

Change-Id: I65b64fdba5f7bd53afba1d6f930217e3f1bd6f6e
Bug: skia:12034
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/412377
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-05-26 00:58:53 +00:00

21 lines
836 B
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float4 input;
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.input.x) == expected.x && length(_uniforms.input.xy) == expected.y) && length(_uniforms.input.xyz) == expected.z) && length(_uniforms.input) == expected.w) && 3.0 == expected.x) && 3.0 == expected.y) && 5.0 == expected.z) && 13.0 == expected.w ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}