skia2/tests/sksl/blend/BlendHardLight.metal
Brian Osman 3e4ef49890 Remove SkBlendMode from SkSL
We've lived without this for a long time. It bloats sksl_gpu (inhibits
some inlining!), and if things go according to plan, we'll be removing
enum support from SkSL entirely soon.

Change-Id: If844bbe5fdae41df7930d5c8ea9b832f9dd1b922
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/419099
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2021-06-16 21:01:30 +00:00

24 lines
1.0 KiB
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float4 src;
float4 dst;
};
struct Inputs {
};
struct Outputs {
float4 sk_FragColor [[color(0)]];
};
float _blend_overlay_component_hh2h2(float2 s, float2 d) {
return 2.0 * d.x <= d.y ? (2.0 * s.x) * d.x : s.y * d.y - (2.0 * (d.y - d.x)) * (s.y - s.x);
}
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out;
(void)_out;
float4 _0_result = float4(_blend_overlay_component_hh2h2(_uniforms.dst.xw, _uniforms.src.xw), _blend_overlay_component_hh2h2(_uniforms.dst.yw, _uniforms.src.yw), _blend_overlay_component_hh2h2(_uniforms.dst.zw, _uniforms.src.zw), _uniforms.dst.w + (1.0 - _uniforms.dst.w) * _uniforms.src.w);
_0_result.xyz = _0_result.xyz + _uniforms.src.xyz * (1.0 - _uniforms.dst.w) + _uniforms.dst.xyz * (1.0 - _uniforms.src.w);
_out.sk_FragColor = _0_result;
return _out;
}