35c4552254
This reverts commit 830c69ca66.
Reason for revert: Pixel5 issues on tree
Original change's description:
> Implement operator== and != for Metal structs and arrays.
>
> GLSL/SkSL assumes that == and != on struct/array types should work.
> We need to emit equality and inequality operators whenever we find code
> that compares a struct or array.
>
> Structs and arrays can be arbitrarily nested, and either type can
> contain a matrix. All of these things need custom equality operators in
> Metal. Therefore, we need to recursively generate comparison operators
> when any of these types are encountered.
>
> For arrays we get lucky, and we can cover all possible array types and
> sizes with a single templated operator== method. Structs and matrices
> have no such luck, and are generated separately on a per-type basis.
>
> For each of these types, operator== is implemented as an equality check
> on each field, and operator!= is implemented in terms of operator==.
> Equality and inequality are always emitted together. (Previously, matrix
> equality and inequality were emitted and implemented independently, but
> this is no longer the case.)
>
> Change-Id: I69ee01c0a390d7db6bcb2253ed6336ab20cc4d1d
> Bug: skia:11908, skia:11924
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/402016
> Auto-Submit: John Stiles <johnstiles@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com
Change-Id: I06c47923649ea9fb675bab6baab121eb504d5ab8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:11908
Bug: skia:11924
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/402558
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
30 lines
959 B
Metal
30 lines
959 B
Metal
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct S {
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int x;
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int y;
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};
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struct Uniforms {
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float4 colorGreen;
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float4 colorRed;
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};
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struct Inputs {
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};
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struct Outputs {
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float4 sk_FragColor [[color(0)]];
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};
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Outputs _out;
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(void)_out;
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array<float, 4> f1 = array<float, 4>{1.0, 2.0, 3.0, 4.0};
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array<float, 4> f2 = array<float, 4>{1.0, 2.0, 3.0, 4.0};
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array<float, 4> f3 = array<float, 4>{1.0, 2.0, 3.0, -4.0};
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array<S, 3> s1 = array<S, 3>{S{1, 2}, S{3, 4}, S{5, 6}};
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array<S, 3> s2 = array<S, 3>{S{1, 2}, S{0, 0}, S{5, 6}};
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array<S, 3> s3 = array<S, 3>{S{1, 2}, S{3, 4}, S{5, 6}};
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_out.sk_FragColor = ((f1 == f2 && f1 != f3) && s1 != s2) && s3 == s1 ? _uniforms.colorGreen : _uniforms.colorRed;
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return _out;
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}
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