Small OpenGL based c++ rendering library
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color.h 1.5KB

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  1. /* libsegl - Sebas Extended GL Library
  2. * Collection of Opengl/3D-Math helpers
  3. *
  4. * Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
  5. * http://www.seba-geek.de
  6. *
  7. * This library is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Library General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2 of the License, or (at your option) any later version.
  11. *
  12. * This library is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Library General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Library General Public
  18. * License along with this library; if not, write to the
  19. * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  20. * Boston, MA 02110-1301, USA.
  21. */
  22. #ifndef __COLOR_H
  23. #define __COLOR_H
  24. #include <SDL.h>
  25. #include <SDL_opengl.h>
  26. #include <iostream>
  27. #include <string>
  28. namespace segl {
  29. class Color {
  30. public:
  31. float r, g, b, a;
  32. bool setalpha;
  33. Color();
  34. Color(float _r, float _g, float _b, float _a=1.0f);
  35. Color(const SDL_Color&);
  36. void set(float _r, float _g, float _b, float _a=1.0f);
  37. SDL_Color getSDLColor();
  38. void print(std::string m="");
  39. };
  40. } // namespace segl
  41. void glColorGLC(segl::Color c);
  42. // a) setalpha entscheiden lassen
  43. // b) zwei funktionen, eine setzt alpha mit in richtung 3f, 4f..
  44. #endif