From b6f34332fe19bf8b4105c7dc10c72e833ea70781 Mon Sep 17 00:00:00 2001 From: Laytan Laats Date: Thu, 27 Feb 2025 22:28:49 +0100 Subject: [PATCH] wgpu: copy over gpu contents to cpu side when mapping --- vendor/wgpu/wgpu.js | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/vendor/wgpu/wgpu.js b/vendor/wgpu/wgpu.js index 74ce8dd91..18ac52e93 100644 --- a/vendor/wgpu/wgpu.js +++ b/vendor/wgpu/wgpu.js @@ -1297,6 +1297,9 @@ class WebGPUInterface { const ptr = this.mem.exports.wgpu_alloc(range.byteLength); + const mapping = new Uint8Array(this.mem.memory.buffer, ptr, size); + mapping.set(new Uint8Array(range)); + buffer.mapping = { range: range, ptr: ptr, size: range.byteLength }; return ptr; }, @@ -1327,6 +1330,9 @@ class WebGPUInterface { const ptr = this.mem.exports.wgpu_alloc(range.byteLength); + const mapping = new Uint8Array(this.mem.memory.buffer, ptr, size); + mapping.set(new Uint8Array(range)); + buffer.mapping = { range: range, ptr: ptr, size: range.byteLength }; return ptr; },