Init

2014-01-28 21:01:37 +01:00
commit f14b733bd0
9 changed files with 446 additions and 0 deletions
@@ -0,0 +1,76 @@
+#include "Direct3D.h"
+
+void Direct3D::Initialize(Window* window)
+{
+	m_Window = window;
+
+	DXGI_SWAP_CHAIN_DESC scd = { 0 };
+	scd.BufferCount = 1;
+	scd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+	scd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+	scd.OutputWindow = window->GetHandle();
+	scd.SampleDesc.Count = 4;
+	scd.Windowed = TRUE;
+	scd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
+
+	D3D11CreateDeviceAndSwapChain(
+		NULL,
+		D3D_DRIVER_TYPE_HARDWARE,
+		NULL,
+		NULL,
+		NULL,
+		NULL,
+		D3D11_SDK_VERSION,
+		&scd,
+		&SwapChain,
+		&Device,
+		NULL,
+		&DeviceContext);
+
+	// Set the back buffer render target
+	ID3D11Texture2D* pBackBuffer;
+	SwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)&pBackBuffer);
+	Device->CreateRenderTargetView(pBackBuffer, NULL, &BackBuffer);
+	pBackBuffer->Release();
+	DeviceContext->OMSetRenderTargets(1, &BackBuffer, NULL);
+
+	// Set the viewport
+	D3D11_VIEWPORT viewport = { 0 };
+	viewport.TopLeftX = 0;
+	viewport.TopLeftY = 0;
+	viewport.Width = window->GetWidth();
+	viewport.Height = window->GetHeight();
+	DeviceContext->RSSetViewports(1, &viewport);
+}
+
+void Direct3D::Resize(int width, int height)
+{
+	DeviceContext->OMSetRenderTargets(0, 0, 0);
+	BackBuffer->Release();
+
+	HRESULT hr; // TODO: Error handling
+	// Preserve the existing buffer count and format.
+	hr = SwapChain->ResizeBuffers(0, width, height, DXGI_FORMAT_UNKNOWN, 0);
+
+	ID3D11Texture2D* pBuffer;
+	hr = SwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)&pBuffer);
+	hr = Device->CreateRenderTargetView(pBuffer, NULL, &BackBuffer);
+	pBuffer->Release();
+	DeviceContext->OMSetRenderTargets(1, &BackBuffer, NULL);
+
+	// Set the viewport
+	D3D11_VIEWPORT viewport = { 0 };
+	viewport.TopLeftX = 0;
+	viewport.TopLeftY = 0;
+	viewport.Width = width;
+	viewport.Height = height;
+	DeviceContext->RSSetViewports(1, &viewport);
+}
+
+Direct3D::~Direct3D()
+{
+	SwapChain->Release();
+	BackBuffer->Release();
+	Device->Release();
+	DeviceContext->Release();
+}