Image flipping

[wtd]

Just thinking about this more...

code:

#include <algorithm> namespace my_stuff {    tamplate <int width, int height, int bytes_per_pixel>    class image    {       private:          GLubyte * const image_start;          const int bytes_per_row;       public:          image(GLubyte * const init_image_start)          : image_start(init_image_start)          , bytes_per_row(width * bytes_per_pixel)          {  }          GLubyte * const get_row(const int row) const          {             return image_start + row * bytes_per_row;          }          GLubyte * const copy_row(const int row) const          {             GLubyte * const new_row = new GLubyte[bytes_per_row];             GLubyte * const start_of_old_row = get_row(row);             std::copy(start_of_old_row, start_of_old_row + bytes_per_row, new_row);             return new_row;          }          void swap_rows(const int first_row_number, const int second_row_number)          {             GLubyte * const first_row = get_row(first_row_number);             GLubyte * const second_row = get_row(second_row_number);             GLubyte * const backup = copy_row(first_row_number);             std::copy(second_row, second_row + bytes_per_row, first_row);             std::copy(back_up, back_up + bytes_per_row, second_row);             delete [] backup;                     }    }; }

Usage might look something like:

code:

my_stuff::image<128, 128, 4> * my_image = new my_stuff::image<128, 128, 4>(pixels); for (int i = 0; i < 64; i++) {    my_image->swap_rows(i, 127 - i); } delete my_image;

Edit: congrats on getting it to work.