(C++) SDL example 2: showing a bitmap

 

This SDL example shows colors moving, like this screenshot (png).

 

Operating system: Ubuntu

IDE: Qt Creator 2.0.0

Project type: Qt4 Console Application

Selected required modules: QtCore

Compiler: G++ 4.4.1

Additional libraries: SDL

 

 

 

 

 

Qt project file

 

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#------------------------------------------------- # # Project created by QtCreator 2010-07-17T14:57:33 # #------------------------------------------------- QT += core QT -= gui TARGET = CppSdlExample2 CONFIG += console CONFIG -= app_bundle TEMPLATE = app LIBS += -L/usr/local/lib -lSDL SOURCES += main.cpp

 

 

 

 

 

Source code

 

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#include <cassert> #include <cstdlib> #include <SDL/SDL.h> int main() {   //Start SDL   if (SDL_Init( SDL_INIT_EVERYTHING ) < 0)   {     assert(!"Should not get here. Initialization failed");   }   //Call SDL_Quit upon exit   std::atexit(SDL_Quit);   //Set up screen   SDL_Surface * const screen = SDL_SetVideoMode( 450, 450, 32, SDL_SWSURFACE );   assert(screen && "Assume screen can be initialized");   //Load image   SDL_Surface * const image = SDL_LoadBMP( "MyImage.bmp");   assert(image && "Assume image is found in same folder as binary");   //Blit image to screen   SDL_BlitSurface( image, 0, screen, 0);   //Update screen   SDL_Flip( screen );   //Wait for user to close window   while (1)   {     SDL_Event event;     SDL_PollEvent(&event);     if (event.type == SDL_QUIT) break;   }   //Free the loaded image   SDL_FreeSurface( image ); }