moflib-1.0/moflib/moflib/mof/VertexBuffer.cpp

   1 #pragma once
   2 #include "mof/VertexBuffer.hpp"
   3 #include "mof/private/GraphicsDeviceImpl.hpp"
   4 #include <d3dx9.h>
   5 #include "mof/VertexTypes.hpp"
   6 #include "mof/private/VertexFVF.hpp"
   7 #include <stdlib.h>
   8
   9 template class mof::VertexBuffer<mof::VertexXYZRHWCUV>;
  10 template class mof::VertexBuffer<mof::VertexXYZRHWC>;
  11 template class mof::VertexBuffer<mof::VertexXYZCUV>;
  12 template class mof::VertexBuffer<mof::VertexXYZNUV>;
  13 template class mof::VertexBuffer<mof::VertexXYZC>;
  14
  15
  16 template <class T>
  17 struct mof::VertexBuffer<T>::Impl{
  18         IDirect3DVertexBuffer9* pBuffer;
  19         mof::PRIMITIVE_TYPE primitiveType;
  20
  21
  22         Impl(mof::PRIMITIVE_TYPE primitiveType_);
  23         ~Impl();
  24 };
  25
  26
  27 template <class T>
  28 mof::VertexBuffer<T>::Impl::Impl(mof::PRIMITIVE_TYPE primitiveType_ )
  29 : pBuffer(NULL) , primitiveType(primitiveType_)
  30 {
  31 }
  32
  33 template <class T>
  34 mof::VertexBuffer<T>::Impl::~Impl()
  35 {
  36         if(pBuffer != NULL)pBuffer->Release();
  37 }
  38
  39
  40 template <class T>
  41 mof::VertexBuffer<T>::VertexBuffer(const T& front , const T& back , mof::PRIMITIVE_TYPE primitiveType )
  42 : m_pImpl(new Impl( primitiveType ))
  43 {
  44         int length = &back - &front + 1;
  45         if(length <= 0)throw std::invalid_argument("\95s\90³\82È\92¸\93_\94z\97ñ\8ew\92è");
  46
  47         const LPDIRECT3DDEVICE9 pDevice = mof::GraphicsDevice::getRawDevice();
  48         HRESULT hr = pDevice->CreateVertexBuffer( sizeof(T) * length , 0 , mof::getFVF<T>() , D3DPOOL_DEFAULT , &m_pImpl->pBuffer , NULL);
  49         if(FAILED(hr))throw std::runtime_error("Failed -- CreateVertexBuffer");
  50
  51         T* pBuffer;
  52         hr = m_pImpl->pBuffer->Lock( 0, 0 ,(LPVOID*)&pBuffer , 0);
  53         if(FAILED(hr))throw std::invalid_argument(std::string("\92¸\93_\83o\83b\83t\83@\82Ì\83\8d\83b\83N\82É\8e¸\94s\82µ\82Ü\82µ\82½"));
  54
  55         memcpy( pBuffer , &front , sizeof(T) * length );
  56         m_pImpl->pBuffer->Unlock();
  57 }
  58
  59
  60
  61 template<class T>
  62 mof::VertexBuffer<T>::~VertexBuffer(){
  63 }
  64
  65
  66 template<class T>
  67 int mof::VertexBuffer<T>::getLength() const{
  68         D3DVERTEXBUFFER_DESC desc;
  69         m_pImpl->pBuffer->GetDesc(&desc);
  70         return desc.Size / sizeof(T);
  71 }
  72
  73
  74 template<class T>
  75 mof::PRIMITIVE_TYPE mof::VertexBuffer<T>::getPrimitiveType() const{
  76         return m_pImpl->primitiveType;
  77 }
  78
  79
  80 template<class T>
  81 void  mof::VertexBuffer<T>::draw() const{
  82         HRESULT hr = E_FAIL;
  83
  84         const LPDIRECT3DDEVICE9 pDevice = mof::GraphicsDevice::getRawDevice();
  85
  86         pDevice->SetFVF(mof::getFVF<T>());
  87         pDevice->SetStreamSource(0 , m_pImpl->pBuffer , 0 , sizeof(T));
  88
  89
  90         int length = getLength();
  91
  92         if(m_pImpl->primitiveType == mof::PRIMITIVE_TYPE_TRIANGLESTRIP){
  93                 hr = pDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP , 0 , length -2 );
  94         }
  95         else if(m_pImpl->primitiveType == mof::PRIMITIVE_TYPE_TRIANGLELIST){
  96                 hr = pDevice->DrawPrimitive( D3DPT_TRIANGLELIST , 0 , length /3 );
  97         }
  98
  99         if(FAILED(hr))throw std::runtime_error("Failed -- DrawPrimitive");
 100
 101 }
 102