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

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                   raw.c                                   */
   4 /*                                                                           */
   5 /*        Raw image converter 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 "attrib.h"
  38 #include "print.h"
  39
  40 /* sp65 */
  41 #include "attr.h"
  42 #include "error.h"
  43 #include "raw.h"
  44
  45
  46
  47 /*****************************************************************************/
  48 /*                                   Code                                    */
  49 /*****************************************************************************/
  50
  51
  52
  53 StrBuf* GenRaw (const Bitmap* B, const Collection* A attribute ((unused)))
  54 /* Generate binary output in raw format. The output is stored in a string
  55 ** buffer (which is actually a dynamic char array) and returned.
  56 */
  57 {
  58     StrBuf* D;
  59     unsigned X, Y;
  60
  61
  62     /* Output the image properties */
  63     Print (stdout, 1, "Image is %ux%u with %u colors%s\n",
  64            GetBitmapWidth (B), GetBitmapHeight (B), GetBitmapColors (B),
  65            BitmapIsIndexed (B)? " (indexed)" : "");
  66
  67     /* Check the bitmap properties */
  68     if (!BitmapIsIndexed (B)) {
  69         Error ("The raw format needs an input bitmap in indexed format");
  70     }
  71
  72     /* Create the output buffer and resize it to the required size. */
  73     D = NewStrBuf ();
  74     SB_Realloc (D, GetBitmapWidth (B) * GetBitmapHeight (B));
  75
  76     /* Convert the image */
  77     for (Y = 0; Y < GetBitmapHeight (B); ++Y) {
  78         for (X = 0; X < GetBitmapWidth (B); ++X) {
  79             /* Place one pixel into the buffer */
  80             SB_AppendChar (D, (unsigned char) GetPixel (B, X, Y).Index);
  81         }
  82     }
  83
  84     /* Return the converted bitmap */
  85     return D;
  86 }