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Hongtae Kim 5 years ago
parent
commit
b9b1f220cf
1 changed files with 24 additions and 3 deletions
  1. 24
    3
      Samples/Texture/Texture.cpp

+ 24
- 3
Samples/Texture/Texture.cpp View File

@@ -10,11 +10,12 @@ class TextureDemo : public SampleApp
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 	DKAtomicNumber32 runningRenderThread;
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 public:
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-    DKObject<DKTexture> LoadTexture2D(DKGraphicsDevice* device, DKData* data)
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+    DKObject<DKTexture> LoadTexture2D(DKCommandQueue* queue, DKData* data)
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     {
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         DKObject<DKImage> image = DKImage::Create(data);
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         if (image)
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         {
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+            DKGraphicsDevice* device = queue->Device();
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             DKTextureDescriptor texDesc = {};
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             texDesc.textureType = DKTexture::Type2D;
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             texDesc.pixelFormat = DKPixelFormat::RGBA8Unorm;
@@ -28,6 +29,26 @@ public:
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             DKObject<DKTexture> tex = device->CreateTexture(texDesc);
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             if (tex)
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             {
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+                size_t bytesPerPixel = image->BytesPerPixel();
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+                uint32_t width = image->Width();
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+                uint32_t height = image->Height();
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+
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+                size_t bufferLength = bytesPerPixel * width * height;
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+                DKObject<DKGpuBuffer> stagingBuffer = device->CreateBuffer(bufferLength, DKGpuBuffer::StorageModeShared, DKCpuCacheModeReadWrite);
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+                
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+                memcpy(stagingBuffer->Contents(), image->Contents(), bufferLength);
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+                stagingBuffer->Flush();
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+
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+                DKObject<DKCommandBuffer> cb = queue->CreateCommandBuffer();
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+                DKObject<DKCopyCommandEncoder> encoder = cb->CreateCopyCommandEncoder();
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+                encoder->CopyFromBufferToTexture(stagingBuffer,
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+                                                 { 0, uint32_t(bytesPerPixel * width), height },
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+                                                 tex,
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+                                                 { 0,0, 0,0,0 },
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+                                                 { width,height,1 });
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+                encoder->EndEncoding();
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+                cb->Commit();
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+
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                 DKLog("Texture created!");
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             }
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         }
@@ -41,9 +62,10 @@ public:
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 		DKShader fragShader(fragData);
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 		DKObject<DKGraphicsDevice> device = DKGraphicsDevice::SharedInstance();
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+        DKObject<DKCommandQueue> queue = device->CreateCommandQueue(DKCommandQueue::Graphics);
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         // create texture
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-        DKObject<DKTexture> texture = LoadTexture2D(device, resourcePool.LoadResourceData("textures/deathstar3.png"));
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+        DKObject<DKTexture> texture = LoadTexture2D(queue, resourcePool.LoadResourceData("textures/deathstar3.png"));
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 		DKObject<DKShaderModule> vertShaderModule = device->CreateShaderModule(&vertShader);
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 		DKObject<DKShaderModule> fragShaderModule = device->CreateShaderModule(&fragShader);
@@ -51,7 +73,6 @@ public:
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 		DKObject<DKShaderFunction> vertShaderFunction = vertShaderModule->CreateFunction(vertShaderModule->FunctionNames().Value(0));
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 		DKObject<DKShaderFunction> fragShaderFunction = fragShaderModule->CreateFunction(fragShaderModule->FunctionNames().Value(0));
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-		DKObject<DKCommandQueue> queue = device->CreateCommandQueue(DKCommandQueue::Graphics);
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 		DKObject<DKSwapChain> swapChain = queue->CreateSwapChain(window);
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 		DKLog("VertexFunction.VertexAttributes: %d", vertShaderFunction->StageInputAttributes().Count());