src/SDLWrap_Surface.cpp

   1 #include "SDLWrap_Surface.hpp"
   2 #include <iostream>
   3 namespace SDLWrap {
   4
   5 Surface::Surface(const std::string BMPFilePath)
   6 try {
   7     SDL_Surface *tmpSurface = NULL;
   8     if ( (tmpSurface = SDL_LoadBMP(BMPFilePath.c_str())) == NULL)
   9         throw SurfaceCreationError();
  10
  11     if ( (this->me = SDL_DisplayFormat(tmpSurface)) == NULL )
  12         throw SurfaceCreationError();
  13
  14     SDL_FreeSurface(tmpSurface);
  15
  16     this->FilePath = BMPFilePath;
  17 }
  18 catch (SurfaceCreationError)
  19 {
  20     ErrorHandler::OutputError(ErrorHandler::FATAL_CONSTRUCTOR_ERROR, "Surface::Surface(char*) constructor threw a SurfaceCreationError.\n");
  21 }
  22
  23 Surface::~Surface()
  24 {
  25     SDL_FreeSurface(this->me);
  26 }
  27
  28 bool
  29 Surface::Blit(const Surface &Destination)
  30 {
  31     return ( RealBlit(Destination, NULL, NULL) == 0 );
  32 }
  33
  34 bool
  35 Surface::Blit(const Surface &Destination, int DestXOffset, int DestYOffset)
  36 {
  37     SDL_Rect OffsetRect;
  38     OffsetRect.x = DestXOffset;
  39     OffsetRect.y = DestYOffset;
  40     return ( RealBlit(Destination, NULL, &OffsetRect) == 0 );
  41 }
  42
  43 bool
  44 Surface::RealBlit(const Surface &Destination, SDL_Rect *SourceRect, SDL_Rect *DestRect)
  45 {
  46     while ( SDL_BlitSurface(this->me, SourceRect, Destination.me, DestRect) == -2 ) {
  47         /* Reload the image and reblit. Too lazy to implement now but the SDL docs have something on it and so does a
  48          * very good post by rip-off on GameDev.
  49          * http://sdl.beuc.net/sdl.wiki/SDL_BlitSurface
  50          * http://www.gamedev.net/community/forums/topic.asp?topic_id=518486&whichpage=1&#3368336
  51          */
  52         continue;
  53     }
  54
  55     return 0;
  56 }
  57
  58 };