From b333b06772c89d96aacb5490d6a219fba7c09cc6 Mon Sep 17 00:00:00 2001
From: Mitja Felicijan <mitja.felicijan@gmail.com>
Date: Thu, 12 Feb 2026 20:57:17 +0100
Subject: Engage!

---
 .../src/ggml-webgpu/wgsl-shaders/cpy.tmpl.wgsl     | 107 +++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 llama.cpp/ggml/src/ggml-webgpu/wgsl-shaders/cpy.tmpl.wgsl

(limited to 'llama.cpp/ggml/src/ggml-webgpu/wgsl-shaders/cpy.tmpl.wgsl')

diff --git a/llama.cpp/ggml/src/ggml-webgpu/wgsl-shaders/cpy.tmpl.wgsl b/llama.cpp/ggml/src/ggml-webgpu/wgsl-shaders/cpy.tmpl.wgsl
new file mode 100644
index 0000000..b5e93b8
--- /dev/null
+++ b/llama.cpp/ggml/src/ggml-webgpu/wgsl-shaders/cpy.tmpl.wgsl
@@ -0,0 +1,107 @@
+#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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