wg_engine: avoid forced texture flushes

After introducing staged buffer removed the need for forced flush of each texture data into gpu
General approach used for all data types
Can increase performance on discrete GPUs

src/renderer/wg_engine/tvgWgCommon.cpp

@@ -85,7 +85,6 @@ bool WgContext::allocateTexture(WGPUTexture& texture, uint32_t width, uint32_t h
         const WGPUTextureDataLayout textureDataLayout{ .bytesPerRow = 4 * width, .rowsPerImage = height };
         const WGPUExtent3D writeSize{ .width = width, .height = height, .depthOrArrayLayers = 1 };
         wgpuQueueWriteTexture(queue, &imageCopyTexture, data, 4 * width * height, &textureDataLayout, &writeSize);
-        wgpuQueueSubmit(queue, 0, nullptr);
     } else {
         releaseTexture(texture);
         texture = createTexture(width, height, format);
@@ -94,7 +93,6 @@ bool WgContext::allocateTexture(WGPUTexture& texture, uint32_t width, uint32_t h
         const WGPUTextureDataLayout textureDataLayout{ .bytesPerRow = 4 * width, .rowsPerImage = height };
         const WGPUExtent3D writeSize{ .width = width, .height = height, .depthOrArrayLayers = 1 };
         wgpuQueueWriteTexture(queue, &imageCopyTexture, data, 4 * width * height, &textureDataLayout, &writeSize);
-        wgpuQueueSubmit(queue, 0, nullptr);
         return true;
     }
     return false;
@@ -287,6 +285,12 @@ void WgContext::releaseCommandEncoder(WGPUCommandEncoder& commandEncoder)
 }
 
 
+void WgContext::submit()
+{
+    wgpuQueueSubmit(queue, 0, nullptr);
+}
+
+
 bool WgContext::invalid()
 {
     return !instance || !device;

src/renderer/wg_engine/tvgWgCommon.h

@@ -73,6 +73,7 @@ struct WgContext {
     void submitCommandEncoder(WGPUCommandEncoder encoder);
     void releaseCommandEncoder(WGPUCommandEncoder& encoder);
 
+    void submit();
     bool invalid();
 };
 

src/renderer/wg_engine/tvgWgCompositor.cpp

@@ -201,6 +201,7 @@ void WgCompositor::flush(WgContext& context)
     stageBufferGeometry.append(&meshDataBlit);
     stageBufferGeometry.flush(context);
     stageBufferPaint.flush(context);
+    context.submit();
 }