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Platform_Win32_Screen.cpp

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//*** Platform_Win32_Screen.cpp ***

#include "Platform_Win32_Screen.h"
#include "Platform_Win32_Screen_Technology.h"
#include "Platform_Win32_Screen_D3D9.h"
#include "Platform_Win32_Screen_DDraw.h"
#include "Platform_Win32_Screen_GDI.h"
#include "Platform_Win32_OS.h"
#include "Platform_Time.h"

#define WIN32_LEAN_AND_MEAN 
#define VC_EXTRALEAN
#include <string.h>
#include <malloc.h>
#include <stdio.h>


//*** Constructor ***

Platform_Win32_Screen::Platform_Win32_Screen(Platform_Win32_OS* os):
   windowHandle_(os->GetWindowHandle()),
   technology_(Technology_Undefined),
   technologyInstance_(0),
   fullscreen_(true),
   fullscreenWidth_(0),
   fullscreenHeight_(0),
   showfps_(false),
   interpolationMode_(true),
   disableOnWmSize_(0),
   ignoreNextOnWmSize_(false),
   firstTimeInitializeCalled_(false),
   forceddraw_(false),
   forcegdi_(false)
   {
   Platform::RegisterEventListener(this);

   // Check commandline flags
   if (os->GetCommandLineString())
      {
      char* cmdline=strdup(os->GetCommandLineString());
      char* token=strtok(cmdline," ");
      while (token)
         {
         if (stricmp(token,"-window")==0)
            {
            fullscreen_=false;
            }
         if (stricmp(token,"-showfps")==0)
            {
            showfps_=true;
            }
         if (stricmp(token,"-forceddraw")==0)
            {
            forceddraw_=true;
            }
         if (stricmp(token,"-forcegdi")==0)
            {
            forcegdi_=true;
            }

         token=strtok(0," ");
         }
      free(cmdline);
      }

   // Determine default screen size
   HWND desktopWindow=GetDesktopWindow();
   RECT desktopRect;
   BOOL result=GetWindowRect(desktopWindow,&desktopRect);
   if (result)
      {
      fullscreenWidth_=desktopRect.right-desktopRect.left;
      fullscreenHeight_=desktopRect.bottom-desktopRect.top;

      windowedWidth_=fullscreenWidth_-fullscreenWidth_/6;
      windowedHeight_=fullscreenHeight_-fullscreenHeight_/6; 
      windowedX_=fullscreenWidth_-windowedWidth_;
      windowedY_=fullscreenHeight_-windowedHeight_;
      windowedX_/=2;
      windowedY_/=2;
      }

   

   }


//*** Destructor ***

Platform_Win32_Screen::~Platform_Win32_Screen()
   {
   disableOnWmSize_++;

   if (technologyInstance_)
      {
      delete technologyInstance_;
      }

   disableOnWmSize_--;

   Platform::UnregisterEventListener(this);
   }


//*** FirstTimeInitialize ***

void Platform_Win32_Screen::FirstTimeInitialize()
   {
   disableOnWmSize_++;


   // Initialize window size
   if (!GetFullscreen())
      {
      SetWindowSize();
      }

   if (forceddraw_ || IsRunningOnWine())
      {
      SetTechnology(Technology_DDraw);
      }
   else if (forcegdi_)
      {
      SetTechnology(Technology_GDI);
      }
   else
      {
      SetTechnology(Technology_D3D9); 
      }  

   // Show window
   ShowWindow(windowHandle_,SW_SHOW);

   disableOnWmSize_--;
   }

//*** Present ***

void Platform_Win32_Screen::Present(unsigned short* bitmapData, int bitmapWidth, int bitmapHeight, unsigned short modulate, unsigned short backgroundColor)
   {
   if (!firstTimeInitializeCalled_)
      {
      FirstTimeInitialize();
      firstTimeInitializeCalled_=true;
      }

   if (!technologyInstance_)
      {
      return;
      }
   
   // Framerate counter
   if (showfps_ && Platform::GetPlatform_Time())
      {

      static float previousTime=Platform::GetPlatform_Time()->GetTime();
      static float accumulatedTime=0;
      static int currentFrameCount=0;
      static int frames=0;
      float newTime=Platform::GetPlatform_Time()->GetTime();
      float deltaTime=newTime-previousTime;
      accumulatedTime+=deltaTime;
      frames++;
      if (accumulatedTime>=1)
         {
         accumulatedTime-=1;
         currentFrameCount=frames;
         frames=0;
         }
      previousTime=newTime;
      static char fps[20];
      _snprintf(fps,20,"%02d",currentFrameCount);
      unsigned short color=0xffff; // White
      if (technology_==Technology_DDraw)
         {
         color=0xf81f; // Magenta
         }
      if (technology_==Technology_GDI)
         {
         color=0x07ff; // Cyan
         }
      DebugText(bitmapData,bitmapWidth,bitmapHeight,6,6,fps,0);
      DebugText(bitmapData,bitmapWidth,bitmapHeight,5,5,fps,color);

      }


   bool result=technologyInstance_->Present(bitmapData,bitmapWidth,bitmapHeight,modulate,backgroundColor);
   if (!result)
      {
      DowngradeTechnology();
      Present(bitmapData,bitmapWidth,bitmapHeight,modulate,backgroundColor);
      }
   }

//*** SetTechnology ***

void Platform_Win32_Screen::SetTechnology(Platform_Win32_Screen::Technology technology)
   {
   disableOnWmSize_++;

   if (technologyInstance_)
      {
      delete technologyInstance_;
      technologyInstance_=0;
      }

   technology_=technology;

   if (technology_>=Technology_Undefined)
      {
      return;
      }
   
   switch(technology_)
      {
      case Technology_D3D9:
         {
         technologyInstance_=new Platform_Win32_Screen_D3D9(windowHandle_, GetFullscreen(), GetWidth(), GetHeight(), GetInterpolationMode());
         } break;

      case Technology_DDraw:
         {
         technologyInstance_=new Platform_Win32_Screen_DDraw(windowHandle_, GetFullscreen(), GetWidth(), GetHeight());
         technologyInstance_->SetInterpolationMode(GetInterpolationMode());
         } break;

      case Technology_GDI:
         {
         technologyInstance_=new Platform_Win32_Screen_GDI(windowHandle_, GetFullscreen(), GetWidth(), GetHeight());
         technologyInstance_->SetInterpolationMode(GetInterpolationMode());
         } break;
      }

   if (!technologyInstance_->Setup())
      {
      DowngradeTechnology();
      }

   disableOnWmSize_--;
   }


//*** DowngradeTechnology ***

void Platform_Win32_Screen::DowngradeTechnology()
   {
   disableOnWmSize_++;

   Platform::GetPlatform_OS()->OutputDebugText("Method failed for technology %d, falling back on technology %d\n",technology_,technology_+1);
   
   if (technologyInstance_)
      {
      delete technologyInstance_;
      technologyInstance_=0;
      }

   Technology newTechnology=(Technology)(technology_+1);
   
   if (newTechnology<Technology_Undefined)
      {
      SetTechnology(newTechnology);
      disableOnWmSize_--;
      return;
      }
   
   technology_=Technology_Undefined;
   technologyInstance_=0;

   disableOnWmSize_--;
   }


//*** SetInterpolationMode *** 

void Platform_Win32_Screen::SetInterpolationMode(bool enabled)
   {
   if (interpolationMode_==enabled)
      {
      return;
      }

   interpolationMode_=enabled;

   if (technologyInstance_)
      {
      technologyInstance_->SetInterpolationMode(interpolationMode_);
      }
   }


//*** GetInterpolationMode *** 

bool Platform_Win32_Screen::GetInterpolationMode()
   {
   return interpolationMode_;
   }


//*** SetFullscreen ***

void Platform_Win32_Screen::SetFullscreen(bool fullscreen)
   {
   if (fullscreen_==fullscreen)
      {
      return;
      }

   fullscreen_=fullscreen;
   
   if (technologyInstance_)
      {
      disableOnWmSize_++;

      delete technologyInstance_;
      technologyInstance_=0;
   
      if (!GetFullscreen())
         {
         SetWindowSize();
         }

      SetTechnology(technology_);

      if (technology_==Technology_DDraw && !GetFullscreen())
         {
         SetWindowSize();
         }

      disableOnWmSize_--;
      }
   }


//*** GetFullscreen ***

bool Platform_Win32_Screen::GetFullscreen()
   {
   return fullscreen_;
   }

      
//*** SetSize ***

void Platform_Win32_Screen::SetSize(int width, int height)
   {
   windowedWidth_=width;
   windowedHeight_=height;

   if (technologyInstance_)
      {
      disableOnWmSize_++;
   
      delete technologyInstance_;
      technologyInstance_=0;

      if (!GetFullscreen())   
         {
         SetWindowSize();
         }  

      SetTechnology(technology_);

      disableOnWmSize_--;

      }

   }


//*** GetWidth ***

int Platform_Win32_Screen::GetWidth()
   {
   if (fullscreen_)
      {
      return fullscreenWidth_;
      }
   
   return windowedWidth_;
   }


//*** GetHeight ***

int Platform_Win32_Screen::GetHeight()
   {
   if (fullscreen_)
      {
      return fullscreenHeight_;
      }
   
   return windowedHeight_;
   }


//*** TransformCursorCoordinates ***

void Platform_Win32_Screen::TransformCursorCoordinates(float& x, float& y)
   {
   if (technologyInstance_)
      {
      technologyInstance_->TransformCursorCoordinates(x,y);
      }
   }


//*** OnCustomEvent ***

void Platform_Win32_Screen::OnCustomEvent(const char* eventId, void* userData)
   {
   if (stricmp(eventId,"OnGainFocus")==0)
      {
      OnGainFocus();
      return;
      }

   if (stricmp(eventId,"OnLoseFocus")==0)
      {
      OnLoseFocus();
      return;
      }

   if (stricmp(eventId,"OnRestore")==0)
      {
      OnRestore();
      return;
      }

   if (stricmp(eventId,"OnMinimize")==0)
      {
      OnMinimize();
      return;
      }

   if (stricmp(eventId,"OnWmSize")==0)
      {
      int width=*(static_cast<int*>(userData));
      int height=*((static_cast<int*>(userData))+1);
      OnWmSize(width,height);
      return;
      }
   }


//*** OnRestore ***

void Platform_Win32_Screen::OnRestore()
   {
   ignoreNextOnWmSize_=true;
   }


//*** OnWmSize ***

void Platform_Win32_Screen::OnWmSize(int width, int height)
   {
   if (disableOnWmSize_ || fullscreen_ || ignoreNextOnWmSize_)
      {
      Platform::GetPlatform_OS()->OutputDebugText("OnWmSize(%d,%d) - DISABLED\n",width,height);
      ignoreNextOnWmSize_=false;
      return;
      }

   disableOnWmSize_++;

   Platform::GetPlatform_OS()->OutputDebugText("OnWmSize(%d,%d) fullscreen_=%d\n",width,height,fullscreen_);

   if (technology_==Technology_DDraw && !technologyInstance_)
      {
      SetTechnology(technology_);
      }
   
   windowedWidth_=width;
   windowedHeight_=height;

   if (!fullscreen_ && technologyInstance_)
      {
      delete technologyInstance_;
      technologyInstance_=0;

      SetTechnology(technology_);
      }

   disableOnWmSize_--;
   }



//*** OnMinimize ***

void Platform_Win32_Screen::OnMinimize()
   {
/* DebugPrint(("OnMinimize\n"));
   if (technologyInstance_)
      {
      delete technologyInstance_;
      technologyInstance_=0;
      }
*/ }


//*** OnLoseFocus ***

void Platform_Win32_Screen::OnLoseFocus()
   {
   disableOnWmSize_++;

   if (fullscreen_ && technologyInstance_)
      {
      disableOnWmSize_++;
      Platform::GetPlatform_OS()->OutputDebugText("OnLoseFocus\n");
      delete technologyInstance_;
      technologyInstance_=0;
      disableOnWmSize_--;
      }
   }


//*** OnGainFocus ***

void Platform_Win32_Screen::OnGainFocus()
   {
   if (fullscreen_ && !technologyInstance_)
      {
      disableOnWmSize_++;
      Platform::GetPlatform_OS()->OutputDebugText("OnGainFocus\n");
      SetTechnology(technology_);
      disableOnWmSize_--;
      }

   disableOnWmSize_--;
   }


//*** SetWindowSize ***

void Platform_Win32_Screen::SetWindowSize()
   {
   Platform::GetPlatform_OS()->OutputDebugText("SetWindowSize\n");

   // Get the whole window area
   RECT rect1;
   BOOL ret=GetWindowRect(windowHandle_,&rect1);
   rect1.right-=rect1.left;
   rect1.bottom-=rect1.top;

   // Get the client area
   RECT rect2;
   ret=GetClientRect(windowHandle_,&rect2);
   rect2.right-=rect2.left;
   rect2.bottom-=rect2.top;

   // Calculate the size of the windows borders/title bar etc.
   int sx=rect1.right-rect2.right;
   int sy=rect1.bottom-rect2.bottom;

   // Set the window to the required dimensions
   MoveWindow(windowHandle_,windowedX_,windowedY_,windowedWidth_+sx,windowedHeight_+sy,TRUE);
   }


//*** IsRunningOnWine ***

bool Platform_Win32_Screen::IsRunningOnWine()
   {
    HMODULE module=LoadLibrary("ntdll");
    if (!module)
      {
        return false;
      }

   FARPROC proc=GetProcAddress(module, "wine_get_unix_file_name");
    FreeLibrary(module);

    return proc!=0;
   }


//*** DebugText ***

void Platform_Win32_Screen::DebugText(unsigned short* colorData, int hPitch, int vPitch, int x, int y, const char* text, unsigned short color)
   {
   // Draw text
   int xp=x;
   for (unsigned int i=0; i<strlen(text); i++)
      {
      char c=text[i];
      if (c>=32 && c<=192)
         {
         c-=32;

         // Source coordinates
         int sx=((c%14)*9);
         int sy=((c/14)*16);

         // Destination coordinates
         int dx=xp;
         int dy=y;

         // Render
         BlitCharacter(colorData,hPitch,vPitch,sx,sy,dx,dy,color);

         // Increase draw position
         xp=xp+8;
         }
      }
   }


//*** BlitCharacter ***

void Platform_Win32_Screen::BlitCharacter(unsigned short* colorData, int hPitch, int vPitch, int sx, int sy, int dx, int dy, unsigned short color)
   {
   for (int y=0; y<16; y++)
      {
      for (int x=0; x<8; x++)
         {
         int u=(sx+x)/32;
         int l=(sx+x)-u*32;
         unsigned int h=DebugFontData[u+(sy+y)*4];
         if (h & (1<<l))
            {
            int xp=dx+x;
            int yp=dy+y;
            if (xp>=0 && xp<hPitch && yp>=0 && yp<vPitch)
               {
               colorData[xp+yp*hPitch]=color;
               }
            }
         }
      }  
   }

//*** DebugFontData ***

unsigned int Platform_Win32_Screen::DebugFontData[] = 
   {
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000180,0x00000000,0x00000000,0x00000000,0x0001c180,0x00000000,0x00000000,0x61983000,0x070363c3,0x0018300c,0x00000000,
   0x61987800,0x0d8b6663,0x0030180c,0x00000000,0xf1987800,0x0d8dc067,0xb030180c,0x000000c1,0x60007800,0x070600c3,0xe0600c00,0x000000c0,0x60003000,0x01830183,0xf8600c00,0x0fc003f3,
   0x60003000,0x3d818303,0xe0600c00,0x000000c0,0xf0000000,0x198ec607,0xb0600c00,0x000000c1,0x60003000,0x199b4663,0x00600c00,0x00038000,0x60003000,0x371b03c3,0x00301800,0x00038000,
   0x00000000,0x000e0180,0x00301800,0x00030000,0x00000000,0x00000180,0x00183000,0x00018000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x81e0c000,0x030783c1,0xf0fc383f,0x000001e0,
   0xc330c000,0x030cc661,0x98c01803,0x00000331,0xf3b06000,0x1b0cc661,0x98600c03,0x07038331,0x83b06000,0x1b0c0601,0xb8603e03,0x07038331,0x83303000,0x1b070301,0xf030661f,0x00000330,
   0x83703000,0x198c0181,0xd8306630,0x000003e1,0x83701800,0x3f8cc0c1,0x98186630,0x00000181,0x83301838,0x180cc061,0x98186618,0x070380c1,0x81e00c38,0x180787e1,0xf0183c0f,0x070380e0,
   0x00000c00,0x00000000,0x00000000,0x06000000,0x00000000,0x00000000,0x00000000,0x03000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0xe0180060,0x0f8307e1,0xf8fc1e1e,0x078661e1,
   0x30300030,0x19878c33,0x180c3633,0x03066330,0x30600018,0x198ccc33,0x180c6633,0x03066330,0x80c0fc0c,0x198ccf31,0x180c6603,0x03066030,0xc1800006,0x0f8ccdb0,0xf87c6603,0x0307e030,
   0xc0c0fc0c,0x198fcdb0,0x180c6603,0x030663b0,0x00600018,0x198ccf30,0x180c6633,0x03066330,0xc0300030,0x198cc030,0x180c3633,0x03066330,0xc0180060,0x0f8ccfe0,0x18fc1e1e,0x078663e0,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x3018cc60,0x0f878c66,0xf8783e1e,0x18c66331,
   0x3018cc60,0x198ccc66,0x60cc6633,0x18c66330,0x70186c60,0x198ccce7,0x600c6633,0x18c66330,0xb0186c60,0x198ccde6,0x60186633,0x1ac66330,0xb0183c60,0x0f8ccf66,0x60303e33,0x1ac66330,
   0xb0186c60,0x018cce66,0x60603633,0x1ac66330,0x30186c66,0x018ccc66,0x60c06633,0x0d866330,0x3018cc66,0x018ccc66,0x60cc6633,0x0d83c330,0x31f8cc3c,0x01878c66,0x6078661e,0x0d8181e0,
   0x00000000,0x00000000,0x00000018,0x00000000,0x00000000,0x00000000,0x00000030,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x06000000,0x00001c00,0x00000000,0x00000000,0x0f000000,0x00001800,0x00000000,0xe1f8cc66,0x19878061,0x18003000,0x00060000,
   0x6180cc66,0x00060060,0x18000000,0x00060000,0x6180cc2c,0x000600c0,0xf8780000,0x0787c1e0,0x60c0cc18,0x000600c0,0x98c00000,0x0cc66331,0x60607818,0x00060180,0x98c00000,0x0cc66031,
   0x60303034,0x00060180,0x98f80000,0x0fc66031,0x60183066,0x00060300,0x98cc0000,0x00c66031,0x60183066,0x00060300,0x98cc0000,0x00c66331,0x61f83066,0x00060600,0xf8f80000,0x0787c1e0,
   0x60000000,0x00060600,0x00000000,0x00000000,0x60000000,0x00060000,0x00000000,0x00000000,0xe0000000,0x80078001,0x0000007f,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0xc0000000,0x00000300,0x00000000,0x00000000,0xc0180078,0x0780c300,0x00000000,0x00000000,
   0x0018000c,0x0600c000,0x00000000,0x00000000,0xf0f8f80c,0x060cc3c0,0xf8783e3f,0x0f8663e0,0xc198cc0c,0x060cc300,0x98cc666b,0x00c76331,0xc198cc7e,0x0606c300,0x98cc666b,0x00c0e331,
   0xc198cc0c,0x0603c300,0x98cc666b,0x07806331,0xc198cc0c,0x0606c300,0x98cc666b,0x0c006331,0xc198cc0c,0x060cc300,0x98cc666b,0x0c006331,0xf198f80c,0x1f8cc303,0xf8786663,0x07c063e0,
   0x0000c000,0x00000300,0x18000000,0x00000300,0x0000c000,0x00000300,0x18000000,0x00000300,0x00007c00,0x000001e0,0x18000000,0x00000300,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x0000000c,0x00000000,0x38181818,0x000003f2,
   0x0000000c,0x00000000,0x6c30180c,0x000003f3,0x3198cc7e,0x1f8cc666,0xc430180c,0x000003f1,0xb198cc0c,0x180cc666,0x0030180c,0x000003f0,0xb198cc0c,0x0c0cc3c6,0x00601806,0x000003f0,
   0xb198cc0c,0x060cc186,0x00c01803,0x000003f0,0xb198cc0c,0x030cc3c6,0x00601806,0x000003f0,0x60f0cc0c,0x018cc663,0x0030180c,0x000003f0,0x6060f878,0x1f878663,0x0030180c,0x000003f0,
   0x00000000,0x00060000,0x0030180c,0x00000000,0x00000000,0x00030000,0x00181818,0x00000000,0x00000000,0x0001e000,0x00001800,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
   0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000
   };

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