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#define(VARIANTS)
[
{
"REPLS": {
"SRC_TYPE": "f32",
"DST_TYPE": "f32"
}
},
{
"REPLS": {
"SRC_TYPE": "f32",
"DST_TYPE": "i32"
}
},
{
"REPLS": {
"SRC_TYPE": "f32",
"DST_TYPE": "f16"
}
},
{
"REPLS": {
"SRC_TYPE": "f16",
"DST_TYPE": "f16"
}
},
{
"REPLS": {
"SRC_TYPE": "f16",
"DST_TYPE": "f32"
}
}
]
#end(VARIANTS)
#define(SHADER)
enable f16;
@group(0) @binding(0)
var<storage, read_write> src: array<{{SRC_TYPE}}>;
@group(0) @binding(1)
var<storage, read_write> dst: array<{{DST_TYPE}}>;
struct Params {
ne: u32, // total number of elements
offset_src: u32, // in elements
offset_dst: u32, // in elements
// Strides (in elements) — may be permuted
stride_src0: u32,
stride_src1: u32,
stride_src2: u32,
stride_src3: u32,
stride_dst0: u32,
stride_dst1: u32,
stride_dst2: u32,
stride_dst3: u32,
// Logical shapes
src_ne0: u32,
src_ne1: u32,
src_ne2: u32,
dst_ne0: u32,
dst_ne1: u32,
dst_ne2: u32
};
@group(0) @binding(2)
var<uniform> params: Params;
override wg_size: u32;
@compute @workgroup_size(wg_size)
fn main(@builtin(global_invocation_id) gid: vec3<u32>) {
if (gid.x >= params.ne) {
return;
}
var i = gid.x;
let i3 = i / (params.src_ne2 * params.src_ne1 * params.src_ne0);
i = i % (params.src_ne2 * params.src_ne1 * params.src_ne0);
let i2 = i / (params.src_ne1 * params.src_ne0);
i = i % (params.src_ne1 * params.src_ne0);
let i1 = i / params.src_ne0;
let i0 = i % params.src_ne0;
var j = gid.x;
let j3 = j / (params.dst_ne2 * params.dst_ne1 * params.dst_ne0);
j = j % (params.dst_ne2 * params.dst_ne1 * params.dst_ne0);
let j2 = j / (params.dst_ne1 * params.dst_ne0);
j = j % (params.dst_ne1 * params.dst_ne0);
let j1 = j / params.dst_ne0;
let j0 = j % params.dst_ne0;
let src_idx = i0 * params.stride_src0 + i1 * params.stride_src1 +
i2 * params.stride_src2 + i3 * params.stride_src3;
let dst_idx = j0 * params.stride_dst0 + j1 * params.stride_dst1 +
j2 * params.stride_dst2 + j3 * params.stride_dst3;
dst[params.offset_dst + dst_idx] = {{DST_TYPE}}((src[params.offset_src + src_idx]));
}
#end(SHADER)
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