mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-07-09 14:45:58 +00:00
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>
49 lines
1.5 KiB
Plaintext
49 lines
1.5 KiB
Plaintext
#include <metal_stdlib>
|
|
|
|
using namespace metal;
|
|
|
|
template<typename T, size_t N>
|
|
struct tint_array {
|
|
const constant T& operator[](size_t i) const constant { return elements[i]; }
|
|
device T& operator[](size_t i) device { return elements[i]; }
|
|
const device T& operator[](size_t i) const device { return elements[i]; }
|
|
thread T& operator[](size_t i) thread { return elements[i]; }
|
|
const thread T& operator[](size_t i) const thread { return elements[i]; }
|
|
threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
|
|
const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
|
|
T elements[N];
|
|
};
|
|
|
|
struct strided_arr {
|
|
/* 0x0000 */ float2 el;
|
|
/* 0x0008 */ tint_array<int8_t, 8> tint_pad;
|
|
};
|
|
|
|
struct SSBO {
|
|
/* 0x0000 */ tint_array<strided_arr, 2> m;
|
|
};
|
|
|
|
float2x2 arr_to_mat2x2_stride_16(tint_array<strided_arr, 2> arr) {
|
|
return float2x2(arr[0u].el, arr[1u].el);
|
|
}
|
|
|
|
tint_array<strided_arr, 2> mat2x2_stride_16_to_arr(float2x2 m) {
|
|
strided_arr const tint_symbol_1 = {.el=m[0u]};
|
|
strided_arr const tint_symbol_2 = {.el=m[1u]};
|
|
tint_array<strided_arr, 2> const tint_symbol_3 = tint_array<strided_arr, 2>{tint_symbol_1, tint_symbol_2};
|
|
return tint_symbol_3;
|
|
}
|
|
|
|
void f_1(device SSBO* const tint_symbol_4) {
|
|
float2x2 const x_15 = arr_to_mat2x2_stride_16((*(tint_symbol_4)).m);
|
|
tint_array<strided_arr, 2> const tint_symbol = mat2x2_stride_16_to_arr(x_15);
|
|
(*(tint_symbol_4)).m = tint_symbol;
|
|
return;
|
|
}
|
|
|
|
kernel void f(device SSBO* tint_symbol_5 [[buffer(0)]]) {
|
|
f_1(tint_symbol_5);
|
|
return;
|
|
}
|
|
|