skia2/tests/sksl/intrinsics/MaxInt.metal
John Stiles 7f17d36c2c Implement compile-time optimization for min() and max().
`evaluate_intrinsic_1_of_type` was rewritten and now supports up to
three arguments. The following APIs are now optimizable:

	$genType min($genType x, $genType y);
	$genType min($genType x, float y);
	$genHType min($genHType x, $genHType y);
	$genHType min($genHType x, half y);
	$genIType min($genIType x, $genIType y);
	$genIType min($genIType x, int y);
	$genType max($genType x, $genType y);
	$genType max($genType x, float y);
	$genHType max($genHType x, $genHType y);
	$genHType max($genHType x, half y);
	$genIType max($genIType x, $genIType y);
	$genIType max($genIType x, int y);

Change-Id: I0a6467fb60b008b61e8b6a7affaebfcb15f5f7a9
Bug: skia:12034
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/412057
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-05-25 14:52:11 +00:00

24 lines
1.4 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;
int4 intValues = int4(_uniforms.testInputs * 100.0);
int4 intGreen = int4(_uniforms.colorGreen * 100.0);
int4 expectedA = int4(50, 50, 75, 225);
int4 expectedB = int4(0, 100, 75, 225);
_out.sk_FragColor = ((((((((((((((max(intValues.x, 50) == expectedA.x && all(max(intValues.xy, 50) == expectedA.xy)) && all(max(intValues.xyz, 50) == expectedA.xyz)) && all(max(intValues, 50) == expectedA)) && 50 == expectedA.x) && all(int2(50, 50) == expectedA.xy)) && all(int3(50, 50, 75) == expectedA.xyz)) && all(int4(50, 50, 75, 225) == expectedA)) && max(intValues.x, intGreen.x) == expectedB.x) && all(max(intValues.xy, intGreen.xy) == expectedB.xy)) && all(max(intValues.xyz, intGreen.xyz) == expectedB.xyz)) && all(max(intValues, intGreen) == expectedB)) && 0 == expectedB.x) && all(int2(0, 100) == expectedB.xy)) && all(int3(0, 100, 75) == expectedB.xyz)) && all(int4(0, 100, 75, 225) == expectedB) ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}