bugfixes, new scaling, double ym upd at 940

[picodrive.git] / platform / win32 / GenaDrive / Direct.cpp

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#include "app.h"\r
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static IDirect3D8 *Direct3D=NULL;\r
IDirect3DDevice8 *Device=NULL;\r
IDirect3DSurface8 *DirectBack=NULL; // Back Buffer\r
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static IDirect3DVertexBuffer8 *VertexBuffer=NULL;\r
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struct CustomVertex\r
{\r
  float x,y,z; // Vertex cordinates\r
  unsigned int colour;\r
  float u,v; // Texture coordinates\r
};\r
#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1)\r
\r
static CustomVertex VertexList[4];\r
\r
int DirectInit()\r
{\r
  D3DPRESENT_PARAMETERS d3dpp; \r
  D3DDISPLAYMODE mode;\r
  int i=0,ret=0;\r
\r
  memset(&d3dpp,0,sizeof(d3dpp));\r
  memset(&mode,0,sizeof(mode));\r
\r
  Direct3D=Direct3DCreate8(D3D_SDK_VERSION); if (Direct3D==NULL) return 1;\r
\r
  // Set up the structure used to create the D3D device:\r
  d3dpp.BackBufferWidth =MainWidth;\r
  d3dpp.BackBufferHeight=MainHeight;\r
  d3dpp.BackBufferCount =1;\r
  d3dpp.SwapEffect=D3DSWAPEFFECT_DISCARD;\r
\r
#ifdef _XBOX\r
  d3dpp.BackBufferFormat=D3DFMT_X8R8G8B8;\r
  d3dpp.FullScreen_RefreshRateInHz=60;\r
#else\r
  Direct3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT,&mode);\r
  d3dpp.BackBufferFormat=mode.Format;\r
  d3dpp.Windowed=1;\r
#endif\r
\r
  // Try to create a device with hardware vertex processing:\r
  for (i=0;i<4;i++)\r
  {\r
    int behave=D3DCREATE_HARDWARE_VERTEXPROCESSING;\r
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#ifdef _XBOX\r
    if (i==1)\r
    {\r
      // If 60Hz didn't work, try PAL 50Hz instead:\r
      d3dpp.FullScreen_RefreshRateInHz=0;\r
      d3dpp.BackBufferHeight=MainHeight=576;\r
    }\r
#endif\r
\r
    // Try software vertex processing:\r
    if (i==2) behave=D3DCREATE_MIXED_VERTEXPROCESSING;\r
    if (i==3) behave=D3DCREATE_SOFTWARE_VERTEXPROCESSING;\r
\r
    Direct3D->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,FrameWnd,behave,&d3dpp,&Device);\r
    if (Device) break;\r
  }\r
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  if (Device==NULL) return 1;\r
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  Device->GetBackBuffer(0,D3DBACKBUFFER_TYPE_MONO,&DirectBack);\r
  if (DirectBack==NULL) return 1;\r
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  Device->CreateVertexBuffer(sizeof(VertexList),0,D3DFVF_CUSTOMVERTEX,D3DPOOL_DEFAULT,&VertexBuffer);\r
  if (VertexBuffer==NULL) return 1;\r
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  ret=TexScreenInit(); if (ret) return 1;\r
\r
  FontInit();\r
\r
  Device->SetRenderState(D3DRS_LIGHTING,0); // Turn off lighting\r
\r
  // Set up texture modes:\r
  Device->SetTextureStageState(0,D3DTSS_ADDRESSU,D3DTADDRESS_CLAMP);\r
  Device->SetTextureStageState(0,D3DTSS_ADDRESSV,D3DTADDRESS_CLAMP);\r
  return 0;\r
}\r
\r
void DirectExit()\r
{\r
  FontExit();\r
  TexScreenExit();\r
\r
  RELEASE(VertexBuffer)\r
  RELEASE(DirectBack)\r
  RELEASE(Device)\r
  RELEASE(Direct3D)\r
}\r
\r
\r
static int MakeVertexList()\r
{\r
  struct CustomVertex *vert=NULL,*pv=NULL;\r
  float dist=0.0f;\r
  float scalex=0.0f,scaley=0.0f;\r
  unsigned int colour=0xffffff;\r
  float right=0.0f,bottom=0.0f;\r
\r
  if (LoopMode!=8) colour=0x102040;\r
\r
  dist=10.0f; scalex=dist*1.3333f; scaley=dist;\r
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  scalex*=640.0f/(float)MainWidth;\r
  scaley*=448.0f/(float)MainHeight;\r
\r
  vert=VertexList;\r
\r
  // Put the vertices for the corners of the screen:\r
  pv=vert;\r
  pv->z=dist;\r
  pv->x=-scalex; pv->y=scaley;\r
  pv->colour=colour; pv++;\r
\r
  *pv=vert[0]; pv->x= scalex; pv->y= scaley; pv++;\r
  *pv=vert[0]; pv->x=-scalex; pv->y=-scaley; pv++;\r
  *pv=vert[0]; pv->x= scalex; pv->y=-scaley; pv++;\r
\r
  // Find where the screen images ends on the texture\r
  right =(float)EmuWidth /(float)TexWidth;\r
  bottom=(float)EmuHeight/(float)TexHeight;\r
\r
  // Write texture coordinates:\r
  pv=vert;\r
  pv->u=0.0f;  pv->v=0.00f;  pv++;\r
  pv->u=right; pv->v=0.00f;  pv++;\r
  pv->u=0.0f;  pv->v=bottom; pv++;\r
  pv->u=right; pv->v=bottom; pv++;\r
\r
  return 0;\r
}\r
\r
int DirectClear(unsigned int colour)\r
{\r
  Device->Clear(0,NULL,D3DCLEAR_TARGET,colour,1.0f,0);\r
  return 0;\r
}\r
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int DirectPresent()\r
{\r
  Device->Present(NULL,NULL,NULL,NULL);\r
  return 0;\r
}\r
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static int SetupMatrices()\r
{\r
  D3DXVECTOR3 eye ( 0.0f, 0.0f, 0.0f );\r
  D3DXVECTOR3 look( 0.0f, 0.0f, 0.0f );\r
  D3DXVECTOR3 up  ( 0.0f, 1.0f, 0.0f );\r
  D3DXMATRIX mat;\r
  float nudgex=0.0f,nudgey=0.0f;\r
\r
  memset(&mat,0,sizeof(mat));\r
  \r
  mat.m[0][0]=mat.m[1][1]=mat.m[2][2]=mat.m[3][3]=1.0f;\r
  Device->SetTransform(D3DTS_WORLD,&mat);\r
\r
  look.x=(float)Inp.axis[2]/2457.6f;\r
  look.y=(float)Inp.axis[3]/2457.6f;\r
  look.z=10.0f;\r
\r
  // Nudge pixels to the centre of each screen pixel:\r
  nudgex=13.3333f/(float)(MainWidth <<1);\r
  nudgey=10.0000f/(float)(MainHeight<<1);\r
  eye.x +=nudgex; eye.y +=nudgey;\r
  look.x+=nudgex; look.y+=nudgey;\r
\r
  D3DXMatrixLookAtLH(&mat,&eye,&look,&up);\r
  Device->SetTransform(D3DTS_VIEW,&mat);\r
\r
  D3DXMatrixPerspectiveFovLH(&mat, 0.5f*PI, 1.3333f, 0.2f, 1000.0f);\r
  Device->SetTransform(D3DTS_PROJECTION,&mat);\r
  return 0;\r
}\r
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int DirectScreen()\r
{\r
  unsigned char *lock=NULL;\r
\r
  // Copy the screen to the screen texture:\r
#ifdef _XBOX\r
  TexScreenSwizzle();\r
#else\r
  TexScreenLinear();\r
#endif\r
\r
  SetupMatrices();\r
\r
  MakeVertexList();\r
\r
  // Copy vertices in:\r
  VertexBuffer->Lock(0,sizeof(VertexList),&lock,0); if (lock==NULL) return 1;\r
  memcpy(lock,VertexList,sizeof(VertexList));\r
  VertexBuffer->Unlock();\r
\r
  Device->SetTexture(0,TexScreen);\r
  Device->SetStreamSource(0,VertexBuffer,sizeof(CustomVertex));\r
  Device->SetVertexShader(D3DFVF_CUSTOMVERTEX);\r
  Device->DrawPrimitive(D3DPT_TRIANGLESTRIP,0,2);\r
  \r
  return 0;\r
}\r