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-
- #include "app.h"
- #include "util.h"
-
-
- class TriangleDemo : public SampleApp
- {
- DKObject<DKWindow> window;
- DKObject<DKThread> renderThread;
- DKAtomicNumber32 runningRenderThread;
-
- public:
- void RenderThread(void)
- {
- DKObject<DKData> vertData = resourcePool.LoadResourceData("triangle.vert.spv");
- DKObject<DKData> fragData = resourcePool.LoadResourceData("triangle.frag.spv");
- DKShader vertShader(vertData);
- DKShader fragShader(fragData);
-
- DKObject<DKGraphicsDevice> device = DKGraphicsDevice::SharedInstance();
- DKObject<DKShaderModule> vertShaderModule = device->CreateShaderModule(&vertShader);
- DKObject<DKShaderModule> fragShaderModule = device->CreateShaderModule(&fragShader);
-
- DKObject<DKShaderFunction> vertShaderFunction = vertShaderModule->CreateFunction(vertShaderModule->FunctionNames().Value(0));
- DKObject<DKShaderFunction> fragShaderFunction = fragShaderModule->CreateFunction(fragShaderModule->FunctionNames().Value(0));
-
- DKObject<DKCommandQueue> queue = device->CreateCommandQueue(DKCommandQueue::Graphics);
- DKObject<DKSwapChain> swapChain = queue->CreateSwapChain(window);
-
- DKLog("VertexFunction.VertexAttributes: %d", vertShaderFunction->StageInputAttributes().Count());
- for (int i = 0; i < vertShaderFunction->StageInputAttributes().Count(); ++i)
- {
- const DKShaderAttribute& attr = vertShaderFunction->StageInputAttributes().Value(i);
- DKLog(" --> VertexAttribute[%d]: \"%ls\" (location:%u)", i, (const wchar_t*)attr.name, attr.location);
- }
-
- struct Vertex
- {
- DKVector3 position;
- DKVector3 color;
- };
- DKArray<Vertex> vertexData =
- {
- { { 0.0f, -0.5f, 0.0f },{ 1.0f, 1.0f, 1.0f } },
- { { 0.5f, 0.5f, 0.0f },{ 0.0f, 1.0f, 0.0f } },
- { { -0.5f, 0.5f, 0.0f },{ 0.0f, 0.0f, 1.0f } }
- };
- uint32_t vertexBufferSize = static_cast<uint32_t>(vertexData.Count()) * sizeof(Vertex);
- DKArray<uint32_t> indexData = { 0, 1, 2 };
- uint32_t indexBufferSize = indexData.Count() * sizeof(uint32_t);
-
- DKObject<DKGpuBuffer> vertexBuffer = device->CreateBuffer(vertexBufferSize, DKGpuBuffer::StorageModeShared, DKCpuCacheModeDefault);
- memcpy(vertexBuffer->Lock(), vertexData, vertexBufferSize);
- vertexBuffer->Unlock();
-
- DKObject<DKGpuBuffer> indexBuffer = device->CreateBuffer(indexBufferSize, DKGpuBuffer::StorageModeShared, DKCpuCacheModeDefault);
- memcpy(indexBuffer->Lock(), indexData, indexBufferSize);
- indexBuffer->Unlock();
-
- DKRenderPipelineDescriptor pipelineDescriptor;
- pipelineDescriptor.vertexFunction = vertShaderFunction;
- pipelineDescriptor.fragmentFunction = fragShaderFunction;
- pipelineDescriptor.colorAttachments.Resize(1);
- pipelineDescriptor.colorAttachments.Value(0).pixelFormat = swapChain->ColorPixelFormat();
- pipelineDescriptor.depthStencilAttachmentPixelFormat = DKPixelFormat::Invalid; // no depth buffer
- pipelineDescriptor.vertexDescriptor.attributes = {
- { DKVertexFormat::Float3, 0, 0, 0 },
- { DKVertexFormat::Float3, sizeof(DKVector3), 0, 1 },
- };
- pipelineDescriptor.vertexDescriptor.layouts = {
- { DKVertexStepRate::Vertex, sizeof(Vertex), 0 },
- };
- pipelineDescriptor.primitiveTopology = DKPrimitiveType::Triangle;
- pipelineDescriptor.frontFace = DKFrontFace::CCW;
- pipelineDescriptor.triangleFillMode = DKTriangleFillMode::Fill;
- pipelineDescriptor.depthClipMode = DKDepthClipMode::Clip;
- pipelineDescriptor.cullMode = DKCullMode::None;
- pipelineDescriptor.rasterizationEnabled = true;
-
- DKPipelineReflection reflection;
- DKObject<DKRenderPipelineState> pipelineState = device->CreateRenderPipeline(pipelineDescriptor, &reflection);
- if (pipelineState)
- {
- PrintPipelineReflection(&reflection, DKLogCategory::Verbose);
- }
-
- DKShaderBindingSetLayout layout;
- if (1)
- {
- DKShaderBinding binding = {
- 0,
- DKShader::DescriptorTypeUniformBuffer,
- 1,
- nullptr
- };
- layout.bindings.Add(binding);
- }
- DKObject<DKShaderBindingSet> bindSet = device->CreateShaderBindingSet(layout);
- if (bindSet)
- {
- struct
- {
- DKMatrix4 projectionMatrix;
- DKMatrix4 modelMatrix;
- DKMatrix4 viewMatrix;
- } ubo;
-
- DKObject<DKGpuBuffer> uboBuffer = device->CreateBuffer(sizeof(ubo), DKGpuBuffer::StorageModeShared, DKCpuCacheModeDefault);
- if (uboBuffer)
- {
- ubo.projectionMatrix = DKMatrix4::identity;
- ubo.modelMatrix = DKMatrix4::identity;
- ubo.viewMatrix = DKMatrix4::identity;
-
- void* p = uboBuffer->Lock(0);
- if (p)
- {
- memcpy(p, &ubo, sizeof(ubo));
- uboBuffer->Unlock();
-
- bindSet->SetBuffer(0, uboBuffer, 0, sizeof(ubo));
- }
- else
- {
- DKLogE("GpuBuffer Lock failed!");
- }
- }
- }
-
- DKTimer timer;
- timer.Reset();
-
- DKLog("Render thread begin");
- while (!runningRenderThread.CompareAndSet(0, 0))
- {
- DKRenderPassDescriptor rpd = swapChain->CurrentRenderPassDescriptor();
- double t = timer.Elapsed();
- t = (cos(t) + 1.0) * 0.5;
- rpd.colorAttachments.Value(0).clearColor = DKColor(t, 0.0, 0.0, 0.0);
-
- DKObject<DKCommandBuffer> buffer = queue->CreateCommandBuffer();
- DKObject<DKRenderCommandEncoder> encoder = buffer->CreateRenderCommandEncoder(rpd);
- if (encoder)
- {
- encoder->SetRenderPipelineState(pipelineState);
- encoder->SetVertexBuffer(vertexBuffer, 0, 0);
- encoder->SetIndexBuffer(indexBuffer, 0, DKIndexType::UInt32);
- encoder->SetResources(0, bindSet);
- // draw scene!
- encoder->DrawIndexed(indexData.Count(), 1, 0, 0, 1);
- encoder->EndEncoding();
- buffer->Commit();
- swapChain->Present();
- }
- else
- {
- }
- DKThread::Sleep(0.01);
- }
- DKLog("RenderThread terminating...");
- }
-
- void OnInitialize(void) override
- {
- SampleApp::OnInitialize();
- DKLogD("%s", DKGL_FUNCTION_NAME);
-
- // create window
- window = DKWindow::Create("DefaultWindow");
- window->SetOrigin({ 0, 0 });
- window->Resize({ 320, 240 });
- window->Activate();
-
- window->AddEventHandler(this, DKFunction([this](const DKWindow::WindowEvent& e)
- {
- if (e.type == DKWindow::WindowEvent::WindowClosed)
- DKApplication::Instance()->Terminate(0);
- }), NULL, NULL);
-
- runningRenderThread = 1;
- renderThread = DKThread::Create(DKFunction(this, &TriangleDemo::RenderThread)->Invocation());
- }
- void OnTerminate(void) override
- {
- DKLogD("%s", DKGL_FUNCTION_NAME);
-
- runningRenderThread = 0;
- renderThread->WaitTerminate();
- renderThread = NULL;
- window = NULL;
-
- SampleApp::OnTerminate();
- }
- };
-
-
- #ifdef _WIN32
- int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
- _In_opt_ HINSTANCE hPrevInstance,
- _In_ LPWSTR lpCmdLine,
- _In_ int nCmdShow)
- #else
- int main(int argc, const char * argv[])
- #endif
- {
- TriangleDemo app;
- DKPropertySet::SystemConfig().SetValue("AppDelegate", "AppDelegate");
- DKPropertySet::SystemConfig().SetValue("GraphicsAPI", "Vulkan");
- return app.Run();
- }
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