core/GP_Triangle.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) 2009-2010 Jiri "BlueBear" Dluhos                            *
  20  *                         <jiri.bluebear.dluhos@gmail.com>                  *
  21  *                                                                           *
  22  * Copyright (C) 2009-2010 Cyril Hrubis <metan@ucw.cz>                       *
  23  *                                                                           *
  24  *****************************************************************************/
  25
  26 #include "GP.h"
  27
  28 void GP_Triangle(GP_Context *context, int x0, int y0, int x1, int y1,
  29                  int x2, int y2, GP_Pixel pixel)
  30 {
  31         GP_CHECK_CONTEXT(context);
  32
  33         GP_Line(context, x0, y0, x1, y1, pixel);
  34         GP_Line(context, x0, y0, x2, y2, pixel);
  35         GP_Line(context, x1, y1, x2, y2, pixel);
  36 }
  37
  38 void GP_TTriangle(GP_Context *context, int x0, int y0, int x1, int y1,
  39                   int x2, int y2, GP_Pixel pixel)
  40 {
  41         GP_CHECK_CONTEXT(context);
  42
  43         GP_TRANSFORM_POINT(context, x0, y0);
  44         GP_TRANSFORM_POINT(context, x1, y1);
  45         GP_TRANSFORM_POINT(context, x2, y2);
  46
  47         GP_Triangle(context, x0, y0, x1, y1, x2, y2, pixel);
  48 }
  49
  50 void GP_FillTriangle(GP_Context * context, int x0, int y0, int x1, int y1,
  51                      int x2, int y2, GP_Pixel pixel)
  52 {
  53         GP_CHECK_CONTEXT(context);
  54
  55         int coords[6] = { x0, y0, x1, y1, x2, y2 };
  56         GP_FillPolygon(context, 3, coords, pixel);
  57 }
  58
  59 void GP_TFillTriangle(GP_Context* context, int x0, int y0, int x1, int y1,
  60                       int x2, int y2, GP_Pixel pixel)
  61 {
  62         GP_CHECK_CONTEXT(context);
  63
  64         GP_TRANSFORM_POINT(context, x0, y0);
  65         GP_TRANSFORM_POINT(context, x1, y1);
  66         GP_TRANSFORM_POINT(context, x2, y2);
  67
  68         int coords[6] = { x0, y0, x1, y1, x2, y2 };
  69         GP_FillPolygon(context, 3, coords, pixel);
  70 }