platform/win32/GenaDrive/Direct.cpp

   1 \r
   2 #include "app.h"\r
   3 \r
   4 static IDirect3D8 *Direct3D=NULL;\r
   5 IDirect3DDevice8 *Device=NULL;\r
   6 IDirect3DSurface8 *DirectBack=NULL; // Back Buffer\r
   7 \r
   8 static IDirect3DVertexBuffer8 *VertexBuffer=NULL;\r
   9 \r
  10 struct CustomVertex\r
  11 {\r
  12   float x,y,z; // Vertex cordinates\r
  13   unsigned int colour;\r
  14   float u,v; // Texture coordinates\r
  15 };\r
  16 #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1)\r
  17 \r
  18 static CustomVertex VertexList[4];\r
  19 \r
  20 int DirectInit()\r
  21 {\r
  22   D3DPRESENT_PARAMETERS d3dpp; \r
  23   D3DDISPLAYMODE mode;\r
  24   D3DDEVTYPE dt = D3DDEVTYPE_HAL;\r
  25   int i,u,ret=0;\r
  26 \r
  27   memset(&d3dpp,0,sizeof(d3dpp));\r
  28   memset(&mode,0,sizeof(mode));\r
  29 \r
  30   Direct3D=Direct3DCreate8(D3D_SDK_VERSION); if (Direct3D==NULL) return 1;\r
  31 \r
  32   // Set up the structure used to create the D3D device:\r
  33   d3dpp.BackBufferWidth =MainWidth;\r
  34   d3dpp.BackBufferHeight=MainHeight;\r
  35   d3dpp.BackBufferCount =1;\r
  36   d3dpp.SwapEffect=D3DSWAPEFFECT_DISCARD;\r
  37 \r
  38 #ifdef _XBOX\r
  39   d3dpp.BackBufferFormat=D3DFMT_X8R8G8B8;\r
  40   d3dpp.FullScreen_RefreshRateInHz=60;\r
  41 #else\r
  42   Direct3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT,&mode);\r
  43   d3dpp.BackBufferFormat=mode.Format;\r
  44   d3dpp.Windowed=1;\r
  45 #endif\r
  46 \r
  47   // Try to create a device with hardware vertex processing:\r
  48   for (u=0;u<2;u++)\r
  49   {\r
  50     for (i=0;i<4;i++)\r
  51     {\r
  52       int behave=D3DCREATE_HARDWARE_VERTEXPROCESSING;\r
  53 \r
  54       // Try software vertex processing:\r
  55       if (i==1) behave=D3DCREATE_MIXED_VERTEXPROCESSING;\r
  56       if (i==2) behave=D3DCREATE_SOFTWARE_VERTEXPROCESSING;\r
  57 \r
  58       Direct3D->CreateDevice(D3DADAPTER_DEFAULT,dt,FrameWnd,behave,&d3dpp,&Device);\r
  59       if (Device) break;\r
  60     }\r
  61     if (Device) break;\r
  62     dt = D3DDEVTYPE_REF;\r
  63   }\r
  64 \r
  65   if (Device==NULL) return 1;\r
  66 \r
  67   Device->GetBackBuffer(0,D3DBACKBUFFER_TYPE_MONO,&DirectBack);\r
  68   if (DirectBack==NULL) return 1;\r
  69 \r
  70   Device->CreateVertexBuffer(sizeof(VertexList),0,D3DFVF_CUSTOMVERTEX,D3DPOOL_DEFAULT,&VertexBuffer);\r
  71   if (VertexBuffer==NULL) return 1;\r
  72 \r
  73   ret=TexScreenInit(); if (ret) return 1;\r
  74 \r
  75   //FontInit();\r
  76 \r
  77   Device->SetRenderState(D3DRS_LIGHTING,0); // Turn off lighting\r
  78 \r
  79   // Set up texture modes:\r
  80   Device->SetTextureStageState(0,D3DTSS_ADDRESSU,D3DTADDRESS_CLAMP);\r
  81   Device->SetTextureStageState(0,D3DTSS_ADDRESSV,D3DTADDRESS_CLAMP);\r
  82   return 0;\r
  83 }\r
  84 \r
  85 void DirectExit()\r
  86 {\r
  87   //FontExit();\r
  88   //TexScreenExit();\r
  89 \r
  90   RELEASE(VertexBuffer)\r
  91   RELEASE(DirectBack)\r
  92   RELEASE(Device)\r
  93   RELEASE(Direct3D)\r
  94 }\r
  95 \r
  96 \r
  97 static int MakeVertexList()\r
  98 {\r
  99   struct CustomVertex *vert=NULL,*pv=NULL;\r
 100   float dist=0.0f;\r
 101   float scalex=0.0f,scaley=0.0f;\r
 102   unsigned int colour=0xffffff;\r
 103   float right=0.0f,bottom=0.0f;\r
 104 \r
 105   if (LoopMode!=8) colour=0x102040;\r
 106 \r
 107   dist=10.0f; scalex=dist*1.3333f; scaley=dist;\r
 108 \r
 109   scalex*=640.0f/(float)MainWidth;\r
 110   scaley*=448.0f/(float)MainHeight;\r
 111 \r
 112   vert=VertexList;\r
 113 \r
 114   // Put the vertices for the corners of the screen:\r
 115   pv=vert;\r
 116   pv->z=dist;\r
 117   pv->x=-scalex; pv->y=scaley;\r
 118   pv->colour=colour; pv++;\r
 119 \r
 120   *pv=vert[0]; pv->x= scalex; pv->y= scaley; pv++;\r
 121   *pv=vert[0]; pv->x=-scalex; pv->y=-scaley; pv++;\r
 122   *pv=vert[0]; pv->x= scalex; pv->y=-scaley; pv++;\r
 123 \r
 124   // Find where the screen images ends on the texture\r
 125   right =(float)EmuWidth /(float)TexWidth;\r
 126   bottom=(float)EmuHeight/(float)TexHeight;\r
 127 \r
 128   // Write texture coordinates:\r
 129   pv=vert;\r
 130   pv->u=0.0f;  pv->v=0.00f;  pv++;\r
 131   pv->u=right; pv->v=0.00f;  pv++;\r
 132   pv->u=0.0f;  pv->v=bottom; pv++;\r
 133   pv->u=right; pv->v=bottom; pv++;\r
 134 \r
 135   return 0;\r
 136 }\r
 137 \r
 138 int DirectClear(unsigned int colour)\r
 139 {\r
 140   Device->Clear(0,NULL,D3DCLEAR_TARGET,colour,1.0f,0);\r
 141   return 0;\r
 142 }\r
 143 \r
 144 int DirectPresent()\r
 145 {\r
 146   Device->Present(NULL,NULL,NULL,NULL);\r
 147   return 0;\r
 148 }\r
 149 \r
 150 static int SetupMatrices()\r
 151 {\r
 152   D3DXVECTOR3 eye ( 0.0f, 0.0f, 0.0f );\r
 153   D3DXVECTOR3 look( 0.0f, 0.0f, 0.0f );\r
 154   D3DXVECTOR3 up  ( 0.0f, 1.0f, 0.0f );\r
 155   D3DXMATRIX mat;\r
 156   float nudgex=0.0f,nudgey=0.0f;\r
 157 \r
 158   memset(&mat,0,sizeof(mat));\r
 159   \r
 160   mat.m[0][0]=mat.m[1][1]=mat.m[2][2]=mat.m[3][3]=1.0f;\r
 161   Device->SetTransform(D3DTS_WORLD,&mat);\r
 162 \r
 163   look.x=(float)Inp.axis[2]/2457.6f;\r
 164   look.y=(float)Inp.axis[3]/2457.6f;\r
 165   look.z=10.0f;\r
 166 \r
 167   // Nudge pixels to the centre of each screen pixel:\r
 168   nudgex=13.3333f/(float)(MainWidth <<1);\r
 169   nudgey=10.0000f/(float)(MainHeight<<1);\r
 170   eye.x +=nudgex; eye.y +=nudgey;\r
 171   look.x+=nudgex; look.y+=nudgey;\r
 172 \r
 173   D3DXMatrixLookAtLH(&mat,&eye,&look,&up);\r
 174   Device->SetTransform(D3DTS_VIEW,&mat);\r
 175 \r
 176   D3DXMatrixPerspectiveFovLH(&mat, 0.5f*PI, 1.3333f, 0.2f, 1000.0f);\r
 177   Device->SetTransform(D3DTS_PROJECTION,&mat);\r
 178   return 0;\r
 179 }\r
 180 \r
 181 int DirectScreen()\r
 182 {\r
 183   unsigned char *lock=NULL;\r
 184   int ret;\r
 185 \r
 186   // Copy the screen to the screen texture:\r
 187 #ifdef _XBOX\r
 188   TexScreenSwizzle();\r
 189 #else\r
 190   ret=TexScreenLinear();\r
 191   if (ret) dprintf2("TexScreenLinear failed\n");\r
 192 #endif\r
 193 \r
 194   SetupMatrices();\r
 195 \r
 196   MakeVertexList();\r
 197 \r
 198   // Copy vertices in:\r
 199   VertexBuffer->Lock(0,sizeof(VertexList),&lock,0);\r
 200   if (lock==NULL) { dprintf2("VertexBuffer->Lock failed\n"); return 1; }\r
 201   memcpy(lock,VertexList,sizeof(VertexList));\r
 202   VertexBuffer->Unlock();\r
 203 \r
 204   ret=Device->SetTexture(0,TexScreen);\r
 205   if (ret) dprintf2("SetTexture failed\n");\r
 206   ret=Device->SetStreamSource(0,VertexBuffer,sizeof(CustomVertex));\r
 207   if (ret) dprintf2("SetStreamSource failed\n");\r
 208   ret=Device->SetVertexShader(D3DFVF_CUSTOMVERTEX);\r
 209   if (ret) dprintf2("SetVertexShader failed\n");\r
 210   ret=Device->DrawPrimitive(D3DPT_TRIANGLESTRIP,0,2);\r
 211   if (ret) dprintf2("DrawPrimitive failed\n");\r
 212 \r
 213   return 0;\r
 214 }\r