skia2/tests/sksl/intrinsics/ClampFloat.metal
John Stiles 0727a80885 Implement compile-time optimization for clamp().
$genType clamp($genType x, $genType minVal, $genType maxVal);
$genType clamp($genType x, float minVal, float maxVal);
$genHType clamp($genHType x, $genHType minVal, $genHType maxVal);
$genHType clamp($genHType x, half minVal, half maxVal);
$genIType clamp($genIType x, $genIType minVal, $genIType maxVal);
$genIType clamp($genIType x, int minVal, int maxVal);

Change-Id: I726270e84fca781825e59abed0c8c7d099ca7444
Bug: skia:12034
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/411839
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-05-25 16:25:42 +00:00

24 lines
1.6 KiB
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float4 testInputs;
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 expectedA = float4(-1.0, 0.0, 0.75, 1.0);
const float4 clampLow = float4(-1.0, -2.0, -2.0, 1.0);
float4 expectedB = float4(-1.0, 0.0, 0.5, 2.25);
const float4 clampHigh = float4(1.0, 2.0, 0.5, 3.0);
_out.sk_FragColor = ((((((((((((((clamp(_uniforms.testInputs.x, -1.0, 1.0) == expectedA.x && all(clamp(_uniforms.testInputs.xy, -1.0, 1.0) == expectedA.xy)) && all(clamp(_uniforms.testInputs.xyz, -1.0, 1.0) == expectedA.xyz)) && all(clamp(_uniforms.testInputs, -1.0, 1.0) == expectedA)) && -1.0 == expectedA.x) && all(float2(-1.0, 0.0) == expectedA.xy)) && all(float3(-1.0, 0.0, 0.75) == expectedA.xyz)) && all(float4(-1.0, 0.0, 0.75, 1.0) == expectedA)) && clamp(_uniforms.testInputs.x, -1.0, 1.0) == expectedB.x) && all(clamp(_uniforms.testInputs.xy, float2(-1.0, -2.0), float2(1.0, 2.0)) == expectedB.xy)) && all(clamp(_uniforms.testInputs.xyz, float3(-1.0, -2.0, -2.0), float3(1.0, 2.0, 0.5)) == expectedB.xyz)) && all(clamp(_uniforms.testInputs, clampLow, clampHigh) == expectedB)) && -1.0 == expectedB.x) && all(float2(-1.0, 0.0) == expectedB.xy)) && all(float3(-1.0, 0.0, 0.5) == expectedB.xyz)) && all(float4(-1.0, 0.0, 0.5, 2.25) == expectedB) ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}