libs/gfx/GP_HLine.c

   1 /*****************************************************************************
   2  * This file is part of gfxprim library.                                     *
   3  *                                                                           *
   4  * Gfxprim is free software; you can redistribute it and/or                  *
   5  * modify it under the terms of the GNU Lesser General Public                *
   6  * License as published by the Free Software Foundation; either              *
   7  * version 2.1 of the License, or (at your option) any later version.        *
   8  *                                                                           *
   9  * Gfxprim is distributed in the hope that it will be useful,                *
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  12  * Lesser General Public License for more details.                           *
  13  *                                                                           *
  14  * You should have received a copy of the GNU Lesser General Public          *
  15  * License along with gfxprim; if not, write to the Free Software            *
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  17  * Boston, MA  02110-1301  USA                                               *
  18  *                                                                           *
  19  * Copyright (C) 2009-2011 Jiri "BlueBear" Dluhos                            *
  20  *                         <jiri.bluebear.dluhos@gmail.com>                  *
  21  *                                                                           *
  22  * Copyright (C) 2009-2012 Cyril Hrubis <metan@ucw.cz>                       *
  23  *                                                                           *
  24  *****************************************************************************/
  25
  26 #include "core/GP_Transform.h"
  27
  28 #include "gfx/GP_HLine.h"
  29 #include "gfx/GP_VLine.h"
  30
  31 void gp_hline_xxy_raw(gp_pixmap *pixmap, gp_coord x0, gp_coord x1,
  32                      gp_coord y, gp_pixel pixel)
  33 {
  34         GP_CHECK_PIXMAP(pixmap);
  35
  36         GP_FN_PER_BPP_PIXMAP(gp_hline_raw, pixmap, pixmap, x0, x1, y,
  37                               pixel);
  38 }
  39
  40 void gp_hline_xyw_raw(gp_pixmap *pixmap, gp_coord x, gp_coord y, gp_size w,
  41                      gp_pixel pixel)
  42 {
  43         if (w == 0)
  44                 return;
  45
  46         gp_hline_xxy_raw(pixmap, x, x + w - 1, y, pixel);
  47 }
  48
  49 void gp_hline_xxy(gp_pixmap *pixmap, gp_coord x0, gp_coord x1, gp_coord y,
  50                      gp_pixel pixel)
  51 {
  52         GP_CHECK_PIXMAP(pixmap);
  53
  54         if (pixmap->axes_swap) {
  55                 GP_TRANSFORM_Y(pixmap, x0);
  56                 GP_TRANSFORM_Y(pixmap, x1);
  57                 GP_TRANSFORM_X(pixmap, y);
  58                 gp_vline_raw(pixmap, y, x0, x1, pixel);
  59         } else {
  60                 GP_TRANSFORM_X(pixmap, x0);
  61                 GP_TRANSFORM_X(pixmap, x1);
  62                 GP_TRANSFORM_Y(pixmap, y);
  63                 gp_hline_raw(pixmap, x0, x1, y, pixel);
  64         }
  65 }
  66
  67 void gp_hline_xyw(gp_pixmap *pixmap, gp_coord x, gp_coord y, gp_size w,
  68                  gp_pixel pixel)
  69 {
  70         if (w == 0)
  71                 return;
  72
  73         gp_hline_xxy(pixmap, x, x + w - 1, y, pixel);
  74 }