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f47887d207
And remove the WrapArraysInStructs transform. Wrapping arrays in structures becomes troublesome for `const` arrays, as currently WGSL does not allow `const` structures. MSL 2.0+ has a builtin array<> helper, but we're targetting MSL 1.2, so we have to emit our own. Fortunately, it can be done with a few lines of templated code. This produces significantly cleaner output. Change-Id: Ifc92ef21e09befa252a07c856c4b5afdc51cc2e4 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94540 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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template<typename T, size_t N>
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struct tint_array {
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const constant T& operator[](size_t i) const constant { return elements[i]; }
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device T& operator[](size_t i) device { return elements[i]; }
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const device T& operator[](size_t i) const device { return elements[i]; }
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thread T& operator[](size_t i) thread { return elements[i]; }
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const thread T& operator[](size_t i) const thread { return elements[i]; }
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threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
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const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
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T elements[N];
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};
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template<typename T, int N, int M>
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inline vec<T, M> operator*(matrix<T, N, M> lhs, packed_vec<T, N> rhs) {
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return lhs * vec<T, N>(rhs);
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}
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template<typename T, int N, int M>
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inline vec<T, N> operator*(packed_vec<T, M> lhs, matrix<T, N, M> rhs) {
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return vec<T, M>(lhs) * rhs;
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}
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struct S {
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/* 0x0000 */ float3x2 tint_symbol;
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/* 0x0018 */ tint_array<int8_t, 8> tint_pad;
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/* 0x0020 */ packed_float3 vector;
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/* 0x002c */ tint_array<int8_t, 4> tint_pad_1;
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};
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fragment void tint_symbol_1(const constant S* tint_symbol_2 [[buffer(0)]]) {
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float2 const x = ((*(tint_symbol_2)).tint_symbol * (*(tint_symbol_2)).vector);
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return;
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}
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