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
53StrBuf* 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}
87