mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-16 20:31:20 +00:00
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>
26 lines
897 B
Plaintext
26 lines
897 B
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 tint_symbol_1 {
|
|
/* 0x0000 */ tint_array<uint4, 1> buffer_size;
|
|
};
|
|
|
|
kernel void tint_symbol(const constant tint_symbol_1* tint_symbol_3 [[buffer(30)]]) {
|
|
uint const l1 = ((*(tint_symbol_3)).buffer_size[0u][0u] / 4u);
|
|
return;
|
|
}
|
|
|