109 lines
2.5 KiB
C++
109 lines
2.5 KiB
C++
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#ifndef I_VERTEX_BUFFER11_H__
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#define I_VERTEX_BUFFER11_H__
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#include "render/IVertexBuffer.h"
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#include "ResourceManager.h"
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#include "IMemoryStream.h"
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#include <d3d11.h>
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#include <dxgi.h>
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#include <d3dx11.h>
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#include "Globals.h"
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namespace LifeGraphics
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{
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class IVertexBuffer11 : public IVertexBuffer
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{
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public:
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ID3D11Buffer* vb;
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ID3D11Device* device;
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ID3D11DeviceContext* context;
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D3D11_MAPPED_SUBRESOURCE mappedData;
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LifeCore::IMemoryStream stm;
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~IVertexBuffer11()
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{
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SAFE_RELEASE(vb);
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}
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IVertexBuffer11(ID3D11Device* _device, void* pBuffer, int _size, int _stride, int staging)
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{
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device = _device;
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length = _size;
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stride = _stride;
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//g_desc = new BufferDescription(size, D3D11.ResourceUsage.Default,
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// BindFlags.VertexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
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D3D11_BUFFER_DESC bd;
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ZeroMemory( &bd, sizeof(bd) );
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if(pBuffer)
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bd.Usage = D3D11_USAGE_DEFAULT;
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else
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bd.Usage = D3D11_USAGE_DYNAMIC;
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if(staging)
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bd.Usage = D3D11_USAGE_STAGING;
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bd.ByteWidth = _size;
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bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
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if(bd.Usage == D3D11_USAGE_DEFAULT)
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bd.CPUAccessFlags = 0;
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else if(bd.Usage == D3D11_USAGE_DYNAMIC)
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bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
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else if(bd.Usage == D3D11_USAGE_STAGING)
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bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE | D3D11_CPU_ACCESS_READ;
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if(pBuffer)
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{
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D3D11_SUBRESOURCE_DATA InitData;
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ZeroMemory( &InitData, sizeof(InitData) );
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InitData.pSysMem = pBuffer;
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device->CreateBuffer( &bd, &InitData, &vb );
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}
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else
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device->CreateBuffer( &bd, NULL, &vb );
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device->GetImmediateContext(&context);
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//if( FAILED( hr ) )
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// return hr;
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}
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LifeCore::IDataStream* Map(int offset, int flags)
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{
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D3D11_MAP mapFlags;
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if (flags & LF_Discard)
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mapFlags = D3D11_MAP_WRITE_DISCARD;
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else if ((flags & LF_NoOverwrite))
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mapFlags = D3D11_MAP_WRITE_NO_OVERWRITE;
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else if ((flags & LF_ReadOnly))
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mapFlags = D3D11_MAP_READ;
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else if (flags == LF_None)
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mapFlags = D3D11_MAP_READ_WRITE;
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else
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mapFlags = D3D11_MAP_WRITE;
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context->Map(vb,0, mapFlags,0, &mappedData);
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stm.Reset(((char*)mappedData.pData) + offset, length);
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return &stm;
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}
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void Update(void* data, size_t length)
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{
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D3D11_BOX b;
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b.left = 0;
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b.right = 1;
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b.top = 0;
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b.bottom = 1;
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b.front = 0;
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b.back = 0;
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context->UpdateSubresource(vb, 0, NULL, data, length, 0);
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}
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void Unmap()
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{
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context->Unmap(vb, 0);
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}
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};
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}
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#endif
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