SDL3 GPU WebGPU Backend

src/gpu/webgpu/SDL_gpu_webgpu.c

@@ -1,3 +1,24 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
 // File: /webgpu/SDL_gpu_webgpu.c
 // Author: Kyle Lukaszek
 // Email: kylelukaszek [at] gmail [dot] com
@@ -1966,11 +1987,6 @@ static SDL_GPUCommandBuffer *WebGPU_AcquireCommandBuffer(SDL_GPURenderer *driver
     commandBuffer->renderer = renderer;
     commandBuffer->common.device = renderer->sdlDevice;
 
-    int width, height;
-    SDL_GetWindowSize(renderer->claimedWindows[0]->window, &width, &height);
-    commandBuffer->currentViewport = (WebGPUViewport){ 0, 0, width, height, 0.0, 1.0 };
-    commandBuffer->currentScissor = (WebGPURect){ 0, 0, width, height };
-
     SDL_zero(commandBuffer->layerViews);
     commandBuffer->layerViewCount = 0;
 
@@ -2090,6 +2106,11 @@ void WebGPU_BeginRenderPass(SDL_GPUCommandBuffer *commandBuffer,
         return;
     }
 
+    int width, height;
+    SDL_GetWindowSize(wgpu_cmd_buf->renderer->claimedWindows[0]->window, &width, &height);
+    wgpu_cmd_buf->currentViewport = (WebGPUViewport){ 0, 0, width, height, 0.0, 1.0 };
+    wgpu_cmd_buf->currentScissor = (WebGPURect){ 0, 0, width, height };
+
     // Handle color attachments
     WGPURenderPassColorAttachment colorAttachments[colorAttachmentCount];
     for (uint32_t i = 0; i < colorAttachmentCount; i++) {