82d4c12dd9
This is a reland of 23d8f94535
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>
Bug: skia:12326
Change-Id: Ife68020f6b01fae973b97f76099c6d5e8215636c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/438296
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
75 lines
3.0 KiB
Metal
75 lines
3.0 KiB
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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template <typename T1, typename T2, size_t N>
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bool operator==(thread const array<T1, N>& left, thread const array<T2, N>& right);
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template <typename T1, typename T2, size_t N>
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bool operator!=(thread const array<T1, N>& left, thread const array<T2, N>& right);
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thread bool operator==(const float2x2 left, const float2x2 right);
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thread bool operator!=(const float2x2 left, const float2x2 right);
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thread bool operator==(thread const S& left, thread const S& right);
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thread bool operator!=(thread const S& left, thread const S& right);
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template <typename T1, typename T2, size_t N>
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bool operator==(thread const array<T1, N>& left, thread const array<T2, N>& right) {
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for (size_t index = 0; index < N; ++index) {
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if (!all(left[index] == right[index])) {
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return false;
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}
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}
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return true;
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}
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template <typename T1, typename T2, size_t N>
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bool operator!=(thread const array<T1, N>& left, thread const array<T2, N>& right) {
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return !(left == right);
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}
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thread bool operator==(const float2x2 left, const float2x2 right) {
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return all(left[0] == right[0]) &&
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all(left[1] == right[1]);
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}
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thread bool operator!=(const float2x2 left, const float2x2 right) {
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return !(left == right);
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}
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thread bool operator==(thread const S& left, thread const S& right) {
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return (left.x == right.x) &&
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(left.y == right.y);
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}
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thread bool operator!=(thread const S& left, thread const S& right) {
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return !(left == right);
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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<int3, 2> v1 = array<int3, 2>{int3(1, 2, 3), int3(4, 5, 6)};
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array<int3, 2> v2 = array<int3, 2>{int3(1, 2, 3), int3(4, 5, 6)};
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array<int3, 2> v3 = array<int3, 2>{int3(1, 2, 3), int3(4, 5, -6)};
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array<float2x2, 3> m1 = array<float2x2, 3>{float2x2(1.0), float2x2(2.0), float2x2(float2(3.0, 4.0), float2(5.0, 6.0))};
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array<float2x2, 3> m2 = array<float2x2, 3>{float2x2(1.0), float2x2(2.0), float2x2(float2(3.0, 4.0), float2(5.0, 6.0))};
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array<float2x2, 3> m3 = array<float2x2, 3>{float2x2(1.0), float2x2(float2(2.0, 3.0), float2(4.0, 5.0)), float2x2(6.0)};
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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) && v1 == v2) && v1 != v3) && m1 == m2) && m1 != m3) && s1 != s2) && s3 == s1 ? _uniforms.colorGreen : _uniforms.colorRed;
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return _out;
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}
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