1 /*****************************************************************************/
5 /* Input format/file definitions for the sp65 sprite and bitmap utility */
9 /* (C) 2012, Ullrich von Bassewitz */
10 /* Roemerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
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. */
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: */
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 */
32 /*****************************************************************************/
49 /*****************************************************************************/
51 /*****************************************************************************/
55 /* Possible input formats */
58 ifCount /* Number of actual input formats w/o ifAuto*/
61 typedef struct InputFormatDesc InputFormatDesc;
62 struct InputFormatDesc {
64 Bitmap* (*Read) (const Collection*);
67 /* Table with input formats indexed by InputFormat */
68 static InputFormatDesc InputFormatTable[ifCount] = {
72 /* Table that maps extensions to input formats. Must be sorted alphabetically */
73 static const FileId FormatTable[] = {
74 /* Upper case stuff for obsolete operating systems */
82 /*****************************************************************************/
84 /*****************************************************************************/
88 Bitmap* ReadInputFile (const Collection* A)
89 /* Read a bitmap from a file and return it. Format, file name etc. must be
90 * given as attributes in A. If no format is given, the function tries to
91 * autodetect it by using the extension of the file name.
96 /* Get the file format from the command line */
97 const char* Format = GetAttrVal (A, "format");
99 /* Format is given, search for it in the table. */
102 sizeof (FormatTable) / sizeof (FormatTable[0]),
103 sizeof (FormatTable[0]),
106 Error ("Unknown input format `%s'", Format);
109 /* No format given, use file name extension */
110 const char* Name = NeedAttrVal (A, "name", "write");
111 F = GetFileId (Name, FormatTable,
112 sizeof (FormatTable) / sizeof (FormatTable[0]));
115 Error ("Cannot determine file format of input file `%s'", Name);
119 /* Call the format specific read */
120 return InputFormatTable[F->Id].Read (A);