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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>
55 lines
1.6 KiB
Plaintext
55 lines
1.6 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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struct tint_symbol_1 {
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/* 0x0000 */ tint_array<uint4, 1> buffer_size;
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};
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struct SB_RO {
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tint_array<uint, 1> arg_0;
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};
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void arrayLength_cfca0a(const constant tint_symbol_1* const tint_symbol_3) {
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uint res = (((*(tint_symbol_3)).buffer_size[0u][0u] - 0u) / 4u);
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}
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struct tint_symbol {
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float4 value [[position]];
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};
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float4 vertex_main_inner(const constant tint_symbol_1* const tint_symbol_4) {
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arrayLength_cfca0a(tint_symbol_4);
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return float4(0.0f);
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}
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vertex tint_symbol vertex_main(const constant tint_symbol_1* tint_symbol_5 [[buffer(30)]]) {
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float4 const inner_result = vertex_main_inner(tint_symbol_5);
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tint_symbol wrapper_result = {};
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wrapper_result.value = inner_result;
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return wrapper_result;
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}
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fragment void fragment_main(const constant tint_symbol_1* tint_symbol_6 [[buffer(30)]]) {
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arrayLength_cfca0a(tint_symbol_6);
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return;
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}
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kernel void compute_main(const constant tint_symbol_1* tint_symbol_7 [[buffer(30)]]) {
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arrayLength_cfca0a(tint_symbol_7);
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return;
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}
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