tests/common/GP_TestingCore.h

   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) 2011      Tomas Gavenciak <gavento@ucw.cz>                  *
  20  *                                                                           *
  21  *****************************************************************************/
  22
  23 #ifndef CORE_GP_TESTINGCORE_H
  24 #define CORE_GP_TESTINGCORE_H
  25
  26 #include "GP_Context.h"
  27 #include "GP_Pixel.h"
  28
  29 /*
  30  * Return pixel value of random color of given type.
  31  * Uses GP_TestingRandom and is not really efficient.
  32  */
  33 GP_Pixel GP_RandomColor(GP_PixelType type);
  34
  35 /*
  36  * Set color of pixels in given bitap rectangle to random values.
  37  * Uses GP_TestingRandom and is not really efficient.
  38  */
  39 void GP_RandomizeRect(GP_Context *context, GP_Coord x, GP_Coord y, GP_Size w, GP_Size h);
  40
  41 /*
  42  * Return true if the two colors are equal after conversion to RGBA8888.
  43  * Not very efficient.
  44  */
  45 int GP_EqualColors(GP_Pixel p1, GP_PixelType t1, GP_Pixel p2, GP_PixelType t2);
  46
  47 /*
  48  * Macro version with GP_CHECK
  49  */
  50 #define GP_CHECK_EqualColors(p1, t1, p2, t2) do { \
  51         if (!GP_EqualColors(p1, t1, p2, t2)) { \
  52                 char b1[256], b2[256]; \
  53                 GP_PixelSNPrint(b1, 256, p1, t1); \
  54                 GP_PixelSNPrint(b2, 256, p2, t2); \
  55                 GP_ABORT("Pixels %s and %s are not the same color.", b1, b2); \
  56         } } while (0);
  57
  58 /*
  59  * Compare two rectangles in two contexts. Return 1 on equal.
  60  * The colors are cmpared by first converting them to RGBA8888.
  61  * Somewhat inefficient.
  62  */
  63 int GP_EqualRects(const GP_Context *c1, GP_Coord x1, GP_Coord y1, GP_Size w, GP_Size h,
  64                   const GP_Context *c2, GP_Coord x2, GP_Coord y2);
  65
  66 #endif /* CORE_GP_TESTINGCORE_H */