skia2/tests/sksl/shared/DeadStripFunctions.metal
John Stiles c068a8f00b Update various shared/ tests to run in dm.
These tests have updated to return green on success, or red on failure.
Some tests were modified slightly to conform to ES2 limitations, or
split into separate ES2 and ES3 parts.

Change-Id: Ib47aeca217aef33f3c4b5999d93afed5d42a1e62
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/363876
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2021-02-01 22:06:59 +00:00

36 lines
857 B
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float4 colorGreen;
float4 colorRed;
};
struct Inputs {
};
struct Outputs {
float4 sk_FragColor [[color(0)]];
};
float4 unpremul(float4 color) {
return float4(color.xyz / max(color.w, 9.9999997473787516e-05), color.w);
}
float4 live_fn(float4 a, float4 b) {
return a + b;
}
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out;
(void)_out;
float4 a;
float4 b;
{
a = live_fn(float4(3.0), float4(-5.0));
}
{
b = unpremul(float4(1.0));
}
_out.sk_FragColor = any(a != float4(0.0)) && any(b != float4(0.0)) ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}