skia2/tests/sksl/shared/ArrayComparison.metal
John Stiles 80c256e027 Revert "Fix array-of-matrix/struct comparisons in Metal."
This reverts commit 23d8f94535.

Reason for revert: SkSL_ArrayComparison test causes Adreno 630/640 to crash in Vulkan

Original change's description:
> Fix array-of-matrix/struct comparisons in Metal.
>
> Metal needs helper functions in order to compare arrays, structs, and
> matrices. Depending on the input code, it was possible for the
> array-comparison helper to be emitted before a matrix-comparison
> or struct-comparison helper. If this occurred, array comparisons of that
> matrix or struct type would fail, because the operator== for the array's
> inner type was defined after array==, and Metal (like C++) parses
> top-to-bottom and only considers functions declared above the current
> function.
>
> We now emit prototypes for all the array, struct and matrix helper
> function. These prototypes are emitted above any helper functions. This
> ensures visibility no matter how your comparisons are organized.
>
> Change-Id: Ib3d8828c301fd0fa6c209788f9ea60800371edbe
> Bug: skia:12326
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/437739
> Commit-Queue: John Stiles <johnstiles@google.com>
> Auto-Submit: John Stiles <johnstiles@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com,skcq-be@skia-corp.google.com.iam.gserviceaccount.com

Change-Id: I9e0fc69c46e1b4f63133e21e130e527ca4f0b31a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:12326
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/438076
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2021-08-10 14:30:55 +00:00

54 lines
1.8 KiB
Metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct S {
int x;
int y;
};
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) {
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);
}
thread bool operator==(thread const S& left, thread const S& right) {
return (left.x == right.x) &&
(left.y == right.y);
}
thread bool operator!=(thread const S& left, thread const S& 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<float, 4> f1 = array<float, 4>{1.0, 2.0, 3.0, 4.0};
array<float, 4> f2 = array<float, 4>{1.0, 2.0, 3.0, 4.0};
array<float, 4> f3 = array<float, 4>{1.0, 2.0, 3.0, -4.0};
array<int3, 2> v1 = array<int3, 2>{int3(1, 2, 3), int3(4, 5, 6)};
array<int3, 2> v2 = array<int3, 2>{int3(1, 2, 3), int3(4, 5, 6)};
array<int3, 2> v3 = array<int3, 2>{int3(1, 2, 3), int3(4, 5, -6)};
array<S, 3> s1 = array<S, 3>{S{1, 2}, S{3, 4}, S{5, 6}};
array<S, 3> s2 = array<S, 3>{S{1, 2}, S{0, 0}, S{5, 6}};
array<S, 3> s3 = array<S, 3>{S{1, 2}, S{3, 4}, S{5, 6}};
_out.sk_FragColor = ((((f1 == f2 && f1 != f3) && v1 == v2) && v1 != v3) && s1 != s2) && s3 == s1 ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}