sdlmm_pixelformat.h Source File

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# sdlmm_pixelformat.h

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    00001 /*
    00002  * SDmm - a C++ wrapper for SDL and related libraries
    00003  * Copyright © 2001 David Hedbor <david@hedbor.org>
    00004  *
    00005  * This program is free software; you can redistribute it and/or
    00006  * modify it under the terms of the GNU General Public License as
    00007  * published by the Free Software Foundation; either version 2 of the
    00008  * License, or (at your option) any later version.
    00009  *
    00010  * This program is distributed in the hope that it will be useful, but
    00011  * WITHOUT ANY WARRANTY; without even the implied warranty of
    00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013  * General Public License for more details.
    00014  *
    00015  * You should have received a copy of the GNU General Public License
    00016  * along with this program; if not, write to the Free Software
    00017  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00018  *
    00019  */
    00020
    00021
    00022 #ifndef SDLMM_PIXELFORMAT_H
    00023 #define SDLMM_PIXELFORMAT_H
    00024
    00025 #include "sdlmm_color.h"
    00026
    00027 namespace SDLmm {
    00029
    00034   class PixelFormat {
    00035   protected:
    00037     SDL_PixelFormat *me;
    00038
    00039   public:
    00041
    00046     explicit PixelFormat(SDL_PixelFormat *pixelformat): me(pixelformat) {  }
    00047
    00049     virtual ~PixelFormat() {
    00050     };
    00051
    00053
    00054
    00055
    00056     bool valid() const { return me != 0; }
    00057
    00059     Uint8 BitsPerPixel() const { return me->BitsPerPixel; }
    00060     Uint8 BytesPerPixel() const { return me->BytesPerPixel; }
    00061     Uint8 Rshift() const { return me->Rshift; }
    00062     Uint8 Gshift() const { return me->Gshift; }
    00063     Uint8 Bshift() const { return me->Bshift; }
    00064
    00065     Uint8 Rloss() const { return me->Rloss; }
    00066     Uint8 Gloss() const { return me->Gloss; }
    00067     Uint8 Bloss() const { return me->Bloss; }
    00068     Uint8 Aloss() const { return me->Aloss; }
    00069
    00070     Uint32 Rmask() const { return me->Rmask; }
    00071     Uint32 Gmask() const { return me->Gmask; }
    00072     Uint32 Bmask() const { return me->Bmask; }
    00073     Uint32 Amask() const { return me->Amask; }
    00074
    00075     Color colorkey() const { return me->colorkey; }
    00076     Uint8 alpha() const { return me->alpha; }
    00077     SDL_Palette *palette() const { return me->palette; }
    00078
    00080
    00100     Color MapRGB(Uint8 r, Uint8 g, Uint8 b) const;
    00101
    00102     Color MapRGB(const ColorRGB& colorrgb) const { return MapRGB(colorrgb.r, colorrgb.g, colorrgb.b); }
    00103
    00105
    00125     Color MapRGBA(Uint8 r, Uint8 g, Uint8 b, Uint8 a) const;
    00126
    00127     Color MapRGBA(const ColorRGBA& colorrgba) const { return MapRGBA(colorrgba.r, colorrgba.g, colorrgba.b, colorrgba.a); }
    00128
    00130
    00142     void GetRGB(Color pixel, Uint8 &r, Uint8 &g, Uint8 &b) const;
    00143
    00144     const ColorRGB GetRGB(Color pixel) const
    00145     {
    00146         ColorRGB        colorrgb;
    00147         GetRGB(pixel, colorrgb.r, colorrgb.g, colorrgb.b);
    00148         return colorrgb;
    00149     }
    00150
    00152
    00165     void GetRGBA(Color pixel, Uint8 &r, Uint8 &g, Uint8 &b, Uint8 &a) const;
    00166
    00167     const ColorRGBA GetRGBA(Color pixel) const
    00168     {
    00169         ColorRGBA        colorrgba;
    00170         GetRGBA(pixel, colorrgba.r, colorrgba.g, colorrgba.b, colorrgba.a);
    00171         return colorrgba;
    00172     }
    00173   };
    00174 }
    00175
    00176 #endif // SDLMM_PIXELFORMAT_H
    00177

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