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   int i=0,ret=0;\r
  25 \r
  26   memset(&d3dpp,0,sizeof(d3dpp));\r
  27   memset(&mode,0,sizeof(mode));\r
  28 \r
  29   Direct3D=Direct3DCreate8(D3D_SDK_VERSION); if (Direct3D==NULL) return 1;\r
  30 \r
  31   // Set up the structure used to create the D3D device:\r
  32   d3dpp.BackBufferWidth =MainWidth;\r
  33   d3dpp.BackBufferHeight=MainHeight;\r
  34   d3dpp.BackBufferCount =1;\r
  35   d3dpp.SwapEffect=D3DSWAPEFFECT_DISCARD;\r
  36 \r
  37 #ifdef _XBOX\r
  38   d3dpp.BackBufferFormat=D3DFMT_X8R8G8B8;\r
  39   d3dpp.FullScreen_RefreshRateInHz=60;\r
  40 #else\r
  41   Direct3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT,&mode);\r
  42   d3dpp.BackBufferFormat=mode.Format;\r
  43   d3dpp.Windowed=1;\r
  44 #endif\r
  45 \r
  46   // Try to create a device with hardware vertex processing:\r
  47   for (i=0;i<4;i++)\r
  48   {\r
  49     int behave=D3DCREATE_HARDWARE_VERTEXPROCESSING;\r
  50 \r
  51 #ifdef _XBOX\r
  52     if (i==1)\r
  53     {\r
  54       // If 60Hz didn't work, try PAL 50Hz instead:\r
  55       d3dpp.FullScreen_RefreshRateInHz=0;\r
  56       d3dpp.BackBufferHeight=MainHeight=576;\r
  57     }\r
  58 #endif\r
  59 \r
  60     // Try software vertex processing:\r
  61     if (i==2) behave=D3DCREATE_MIXED_VERTEXPROCESSING;\r
  62     if (i==3) behave=D3DCREATE_SOFTWARE_VERTEXPROCESSING;\r
  63 \r
  64     Direct3D->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,FrameWnd,behave,&d3dpp,&Device);\r
  65     if (Device) break;\r
  66   }\r
  67 \r
  68   if (Device==NULL) return 1;\r
  69 \r
  70   Device->GetBackBuffer(0,D3DBACKBUFFER_TYPE_MONO,&DirectBack);\r
  71   if (DirectBack==NULL) return 1;\r
  72 \r
  73   Device->CreateVertexBuffer(sizeof(VertexList),0,D3DFVF_CUSTOMVERTEX,D3DPOOL_DEFAULT,&VertexBuffer);\r
  74   if (VertexBuffer==NULL) return 1;\r
  75 \r
  76   ret=TexScreenInit(); if (ret) return 1;\r
  77 \r
  78   FontInit();\r
  79 \r
  80   Device->SetRenderState(D3DRS_LIGHTING,0); // Turn off lighting\r
  81 \r
  82   // Set up texture modes:\r
  83   Device->SetTextureStageState(0,D3DTSS_ADDRESSU,D3DTADDRESS_CLAMP);\r
  84   Device->SetTextureStageState(0,D3DTSS_ADDRESSV,D3DTADDRESS_CLAMP);\r
  85   return 0;\r
  86 }\r
  87 \r
  88 void DirectExit()\r
  89 {\r
  90   FontExit();\r
  91   TexScreenExit();\r
  92 \r
  93   RELEASE(VertexBuffer)\r
  94   RELEASE(DirectBack)\r
  95   RELEASE(Device)\r
  96   RELEASE(Direct3D)\r
  97 }\r
  98 \r
  99 \r
 100 static int MakeVertexList()\r
 101 {\r
 102   struct CustomVertex *vert=NULL,*pv=NULL;\r
 103   float dist=0.0f;\r
 104   float scalex=0.0f,scaley=0.0f;\r
 105   unsigned int colour=0xffffff;\r
 106   float right=0.0f,bottom=0.0f;\r
 107 \r
 108   if (LoopMode!=8) colour=0x102040;\r
 109 \r
 110   dist=10.0f; scalex=dist*1.3333f; scaley=dist;\r
 111 \r
 112   scalex*=640.0f/(float)MainWidth;\r
 113   scaley*=448.0f/(float)MainHeight;\r
 114 \r
 115   vert=VertexList;\r
 116 \r
 117   // Put the vertices for the corners of the screen:\r
 118   pv=vert;\r
 119   pv->z=dist;\r
 120   pv->x=-scalex; pv->y=scaley;\r
 121   pv->colour=colour; pv++;\r
 122 \r
 123   *pv=vert[0]; pv->x= scalex; pv->y= scaley; pv++;\r
 124   *pv=vert[0]; pv->x=-scalex; pv->y=-scaley; pv++;\r
 125   *pv=vert[0]; pv->x= scalex; pv->y=-scaley; pv++;\r
 126 \r
 127   // Find where the screen images ends on the texture\r
 128   right =(float)EmuWidth /(float)TexWidth;\r
 129   bottom=(float)EmuHeight/(float)TexHeight;\r
 130 \r
 131   // Write texture coordinates:\r
 132   pv=vert;\r
 133   pv->u=0.0f;  pv->v=0.00f;  pv++;\r
 134   pv->u=right; pv->v=0.00f;  pv++;\r
 135   pv->u=0.0f;  pv->v=bottom; pv++;\r
 136   pv->u=right; pv->v=bottom; pv++;\r
 137 \r
 138   return 0;\r
 139 }\r
 140 \r
 141 int DirectClear(unsigned int colour)\r
 142 {\r
 143   Device->Clear(0,NULL,D3DCLEAR_TARGET,colour,1.0f,0);\r
 144   return 0;\r
 145 }\r
 146 \r
 147 int DirectPresent()\r
 148 {\r
 149   Device->Present(NULL,NULL,NULL,NULL);\r
 150   return 0;\r
 151 }\r
 152 \r
 153 static int SetupMatrices()\r
 154 {\r
 155   D3DXVECTOR3 eye ( 0.0f, 0.0f, 0.0f );\r
 156   D3DXVECTOR3 look( 0.0f, 0.0f, 0.0f );\r
 157   D3DXVECTOR3 up  ( 0.0f, 1.0f, 0.0f );\r
 158   D3DXMATRIX mat;\r
 159   float nudgex=0.0f,nudgey=0.0f;\r
 160 \r
 161   memset(&mat,0,sizeof(mat));\r
 162   \r
 163   mat.m[0][0]=mat.m[1][1]=mat.m[2][2]=mat.m[3][3]=1.0f;\r
 164   Device->SetTransform(D3DTS_WORLD,&mat);\r
 165 \r
 166   look.x=(float)Inp.axis[2]/2457.6f;\r
 167   look.y=(float)Inp.axis[3]/2457.6f;\r
 168   look.z=10.0f;\r
 169 \r
 170   // Nudge pixels to the centre of each screen pixel:\r
 171   nudgex=13.3333f/(float)(MainWidth <<1);\r
 172   nudgey=10.0000f/(float)(MainHeight<<1);\r
 173   eye.x +=nudgex; eye.y +=nudgey;\r
 174   look.x+=nudgex; look.y+=nudgey;\r
 175 \r
 176   D3DXMatrixLookAtLH(&mat,&eye,&look,&up);\r
 177   Device->SetTransform(D3DTS_VIEW,&mat);\r
 178 \r
 179   D3DXMatrixPerspectiveFovLH(&mat, 0.5f*PI, 1.3333f, 0.2f, 1000.0f);\r
 180   Device->SetTransform(D3DTS_PROJECTION,&mat);\r
 181   return 0;\r
 182 }\r
 183 \r
 184 int DirectScreen()\r
 185 {\r
 186   unsigned char *lock=NULL;\r
 187 \r
 188   // Copy the screen to the screen texture:\r
 189 #ifdef _XBOX\r
 190   TexScreenSwizzle();\r
 191 #else\r
 192   TexScreenLinear();\r
 193 #endif\r
 194 \r
 195   SetupMatrices();\r
 196 \r
 197   MakeVertexList();\r
 198 \r
 199   // Copy vertices in:\r
 200   VertexBuffer->Lock(0,sizeof(VertexList),&lock,0); if (lock==NULL) return 1;\r
 201   memcpy(lock,VertexList,sizeof(VertexList));\r
 202   VertexBuffer->Unlock();\r
 203 \r
 204   Device->SetTexture(0,TexScreen);\r
 205   Device->SetStreamSource(0,VertexBuffer,sizeof(CustomVertex));\r
 206   Device->SetVertexShader(D3DFVF_CUSTOMVERTEX);\r
 207   Device->DrawPrimitive(D3DPT_TRIANGLESTRIP,0,2);\r
 208   \r
 209   return 0;\r
 210 }\r