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#include <SDL/SDL.h>
#include <dirent.h>
#include <vector>
using namespace std;
#include "util.h"
#include "random.h"
Uint32 getpixel(SDL_Surface *surface, int x, int y)
{
int bpp = surface->format->BytesPerPixel;
/* Here p is the address to the pixel we want to retrieve */
Uint8 *p = (Uint8 *)surface->pixels + y * surface->pitch + x * bpp;
switch(bpp) {
case 1:
return *p;
case 2:
return *(Uint16 *)p;
case 3:
if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
return p[0] << 16 | p[1] << 8 | p[2];
else
return p[0] | p[1] << 8 | p[2] << 16;
case 4:
return *(Uint32 *)p;
default:
return 0; /* shouldn't happen, but avoids warnings */
}
}
string chooseRandomFile( string path, string fileType )
{
vector<string> files;
DIR *d = opendir( path.c_str() );
if ( !d )
return "";
struct dirent *item = readdir( d );
while ( item )
{
string file = string( path ) + item->d_name;
// Rip extension from file
int pos = file.find( ".", 1 ) + 1;
string tmp = file.substr( pos );
if ( tmp.size() > 0 && fileType.find( tmp ) != -1 )
{
files.push_back( file );
}
item = readdir( d );
}
closedir( d );
return files[nextInt( files.size() )];
}
string getHomeDir()
{
string home;
#ifdef QWS
home = getenv( "HOME" );
#else
home = ".";
#endif
return home;
}
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