skia2/tests/sksl/shared/ArrayNarrowingConversions.metal
John Stiles adb3eac15c Add tests for array assignment with narrowing conversions.
An assignment like `mediump int a[2] = myHighpIntArray;` should succeed
now that the previous CLs have landed; originally, this would have
caused a type-mismatch error.

Change-Id: I86ffe6a21d0c7fbe289eef95aebc2605412566aa
Bug: skia:12248
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/437740
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-08-11 12:56:40 +00:00

48 lines
1.6 KiB
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)]];
};
template <typename T1, typename T2, size_t N>
bool operator==(thread const array<T1, N>& left, thread const array<T2, N>& right);
template <typename T1, typename T2, size_t N>
bool operator!=(thread const array<T1, N>& left, thread const array<T2, N>& right);
template <typename T1, typename T2, size_t N>
bool operator==(thread const array<T1, N>& left, thread const array<T2, N>& right) {
for (size_t index = 0; index < N; ++index) {
if (!all(left[index] == right[index])) {
return false;
}
}
return true;
}
template <typename T1, typename T2, size_t N>
bool operator!=(thread const array<T1, N>& left, thread const array<T2, N>& right) {
return !(left == right);
}
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out;
(void)_out;
array<int, 2> i2 = array<int, 2>{1, 2};
array<int, 2> s2 = array<int, 2>{1, 2};
array<float, 2> f2 = array<float, 2>{1.0, 2.0};
array<float, 2> h2 = array<float, 2>{1.0, 2.0};
i2 = s2;
s2 = i2;
f2 = h2;
h2 = f2;
const array<float, 2> cf2 = array<float, 2>{1.0, 2.0};
_out.sk_FragColor = ((i2 == s2 && f2 == h2) && i2 == array<int, 2>{1, 2}) && h2 == cf2 ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}