mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-14 19:31:25 +00:00
a5d73ce965
This is a major reworking of this transform. The old transform code was getting unwieldy, with part of the complication coming from the handling of multiple return statements. By generating a wrapper function instead, we can avoid a lot of this complexity. The original entry point function is stripped of all shader IO attributes (as well as `stage` and `workgroup_size`), but the body is left unmodified. A new entry point wrapper function is introduced which calls the original function, packing/unpacking the shader inputs as necessary, and propagates the result to the corresponding shader outputs. The new code has been refactored to use a state object with the different parts of the transform split into separate functions, which makes it much more manageable. Fixed: tint:1076 Bug: tint:920 Change-Id: I3490a0ea7a3509a4e198ce730e476516649d8d96 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60521 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>
41 lines
942 B
Plaintext
41 lines
942 B
Plaintext
#include <metal_stdlib>
|
|
|
|
using namespace metal;
|
|
struct tint_array_wrapper {
|
|
/* 0x0000 */ int4 arr[4];
|
|
};
|
|
struct Inner {
|
|
/* 0x0000 */ packed_int3 a;
|
|
/* 0x000c */ int b;
|
|
/* 0x0010 */ packed_uint3 c;
|
|
/* 0x001c */ uint d;
|
|
/* 0x0020 */ packed_float3 e;
|
|
/* 0x002c */ float f;
|
|
/* 0x0030 */ float2x3 g;
|
|
/* 0x0050 */ float3x2 h;
|
|
/* 0x0068 */ int8_t tint_pad[8];
|
|
/* 0x0070 */ tint_array_wrapper i;
|
|
};
|
|
struct S {
|
|
/* 0x0000 */ Inner arr[1];
|
|
};
|
|
|
|
void tint_symbol_inner(device S& s, uint idx) {
|
|
s.arr[idx].a = int3();
|
|
s.arr[idx].b = int();
|
|
s.arr[idx].c = uint3();
|
|
s.arr[idx].d = uint();
|
|
s.arr[idx].e = float3();
|
|
s.arr[idx].f = float();
|
|
s.arr[idx].g = float2x3();
|
|
s.arr[idx].h = float3x2();
|
|
tint_array_wrapper const tint_symbol_1 = {.arr={}};
|
|
s.arr[idx].i = tint_symbol_1;
|
|
}
|
|
|
|
kernel void tint_symbol(uint idx [[thread_index_in_threadgroup]], device S& s [[buffer(0)]]) {
|
|
tint_symbol_inner(s, idx);
|
|
return;
|
|
}
|
|
|