148 lines
3.7 KiB
C++
148 lines
3.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// Filename: rendertextureclass.cpp
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////////////////////////////////////////////////////////////////////////////////
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#include "rendertextureclass.h"
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RenderTextureClass::RenderTextureClass()
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{
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m_renderTargetTexture = 0;
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m_renderTargetView = 0;
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m_shaderResourceView = 0;
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}
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RenderTextureClass::RenderTextureClass(const RenderTextureClass& other)
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{
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}
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RenderTextureClass::~RenderTextureClass()
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{
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}
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bool RenderTextureClass::Initialize(ID3D11Device* device, int textureWidth, int textureHeight)
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{
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D3D11_TEXTURE2D_DESC textureDesc;
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HRESULT result;
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D3D11_RENDER_TARGET_VIEW_DESC renderTargetViewDesc;
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D3D11_SHADER_RESOURCE_VIEW_DESC shaderResourceViewDesc;
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// Initialize the render target texture description.
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ZeroMemory(&textureDesc, sizeof(textureDesc));
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// Setup the render target texture description.
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textureDesc.Width = textureWidth;
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textureDesc.Height = textureHeight;
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textureDesc.MipLevels = 1;
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textureDesc.ArraySize = 1;
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textureDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
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textureDesc.SampleDesc.Count = 1;
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textureDesc.Usage = D3D11_USAGE_DEFAULT;
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textureDesc.BindFlags = D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE;
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textureDesc.CPUAccessFlags = 0;
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textureDesc.MiscFlags = 0;
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// Create the render target texture.
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result = device->CreateTexture2D(&textureDesc, NULL, &m_renderTargetTexture);
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if(FAILED(result))
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{
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return false;
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}
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// Setup the description of the render target view.
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renderTargetViewDesc.Format = textureDesc.Format;
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renderTargetViewDesc.ViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
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renderTargetViewDesc.Texture2D.MipSlice = 0;
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// Create the render target view.
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result = device->CreateRenderTargetView(m_renderTargetTexture, &renderTargetViewDesc, &m_renderTargetView);
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if(FAILED(result))
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{
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return false;
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}
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// Setup the description of the shader resource view.
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shaderResourceViewDesc.Format = textureDesc.Format;
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shaderResourceViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
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shaderResourceViewDesc.Texture2D.MostDetailedMip = 0;
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shaderResourceViewDesc.Texture2D.MipLevels = 1;
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// Create the shader resource view.
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result = device->CreateShaderResourceView(m_renderTargetTexture, &shaderResourceViewDesc, &m_shaderResourceView);
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if(FAILED(result))
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{
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return false;
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}
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return true;
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}
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void RenderTextureClass::Shutdown()
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{
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if(m_shaderResourceView)
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{
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m_shaderResourceView->Release();
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m_shaderResourceView = 0;
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}
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if(m_renderTargetView)
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{
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m_renderTargetView->Release();
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m_renderTargetView = 0;
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}
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if(m_renderTargetTexture)
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{
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m_renderTargetTexture->Release();
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m_renderTargetTexture = 0;
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}
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return;
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}
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void RenderTextureClass::SetRenderTarget(ID3D11DeviceContext* deviceContext, ID3D11DepthStencilView* depthStencilView)
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{
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// Bind the render target view and depth stencil buffer to the output render pipeline.
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deviceContext->OMSetRenderTargets(1, &m_renderTargetView, depthStencilView);
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return;
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}
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void RenderTextureClass::ClearRenderTarget(ID3D11DeviceContext* deviceContext, ID3D11DepthStencilView* depthStencilView,
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float red, float green, float blue, float alpha)
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{
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float color[4];
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// Setup the color to clear the buffer to.
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color[0] = red;
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color[1] = green;
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color[2] = blue;
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color[3] = alpha;
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// Clear the back buffer.
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deviceContext->ClearRenderTargetView(m_renderTargetView, color);
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// Clear the depth buffer.
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deviceContext->ClearDepthStencilView(depthStencilView, D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL, 1.0f, 0);
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return;
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}
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ID3D11ShaderResourceView* RenderTextureClass::GetShaderResourceView()
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{
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return m_shaderResourceView;
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}
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ID3D11Texture2D* RenderTextureClass::GetTexture()
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{
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return m_renderTargetTexture;
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} |