git.sur5r.net Git - cc65/blob - src/sp65/palette.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 palette.c                                 */
   4 /*                                                                           */
   5 /*      Color palette definition for the sp65 sprite and bitmap utility      */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2012,      Ullrich von Bassewitz                                      */
  10 /*                Roemerstrasse 52                                           */
  11 /*                D-70794 Filderstadt                                        */
  12 /* EMail:         uz@cc65.org                                                */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 /* common */
  37 #include "check.h"
  38 #include "xmalloc.h"
  39
  40 /* sp65 */
  41 #include "palette.h"
  42
  43
  44
  45 /*****************************************************************************/
  46 /*                                   Code                                    */
  47 /*****************************************************************************/
  48
  49
  50
  51 Palette* NewPalette (unsigned Entries)
  52 /* Create a new palette with the given number of entries */
  53 {
  54     Palette* P;
  55
  56     /* Some safety checks */
  57     PRECONDITION (Entries > 0 && Entries <= 256);
  58
  59     /* Allocate memory */
  60     P = xmalloc (sizeof (*P) + (Entries - 1) * sizeof (P->Entries[0]));
  61
  62     /* Initialize the struct, then return it */
  63     P->Count = Entries;
  64     return P;
  65 }
  66
  67
  68
  69 void FreePalette (Palette* P)
  70 /* Free a dynamically allocated palette */
  71 {
  72     xfree (P);
  73 }
  74
  75
  76