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ef416fc2 | 1 | /* |
75bd9771 | 2 | * "$Id: image-private.h 7473 2008-04-21 17:51:58Z mike $" |
ef416fc2 | 3 | * |
4 | * Private image library definitions for the Common UNIX Printing | |
5 | * System (CUPS). | |
6 | * | |
3dfe78b3 | 7 | * Copyright 2007-2008 by Apple Inc. |
b423cd4c | 8 | * Copyright 1993-2006 by Easy Software Products. |
ef416fc2 | 9 | * |
10 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 11 | * property of Apple Inc. and are protected by Federal copyright |
12 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
13 | * which should have been included with this file. If this file is | |
14 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 15 | * |
16 | * This file is subject to the Apple OS-Developed Software exception. | |
17 | */ | |
18 | ||
19 | #ifndef _CUPS_IMAGE_PRIVATE_H_ | |
20 | # define _CUPS_IMAGE_PRIVATE_H_ | |
21 | ||
22 | /* | |
23 | * Include necessary headers... | |
24 | */ | |
25 | ||
26 | # include "image.h" | |
27 | # include <cups/cups.h> | |
28 | # include <cups/debug.h> | |
29 | # include <cups/string.h> | |
30 | # include <stdlib.h> | |
31 | # include <string.h> | |
7a0cbd5e MS |
32 | # ifdef WIN32 |
33 | # include <io.h> | |
34 | # else | |
35 | # include <unistd.h> | |
36 | # endif /* WIN32 */ | |
ef416fc2 | 37 | # include <errno.h> |
38 | # include <math.h> | |
39 | ||
40 | ||
41 | /* | |
42 | * Constants... | |
43 | */ | |
44 | ||
45 | # define CUPS_IMAGE_MAX_WIDTH 0x07ffffff | |
46 | /* 2^27-1 to allow for 15-channel data */ | |
e07d4801 MS |
47 | # define CUPS_IMAGE_MAX_HEIGHT 0x3fffffff |
48 | /* 2^30-1 */ | |
ef416fc2 | 49 | |
50 | # define CUPS_TILE_SIZE 256 /* 256x256 pixel tiles */ | |
51 | # define CUPS_TILE_MINIMUM 10 /* Minimum number of tiles */ | |
52 | ||
53 | ||
54 | /* | |
55 | * min/max/abs macros... | |
56 | */ | |
57 | ||
58 | # ifndef max | |
59 | # define max(a,b) ((a) > (b) ? (a) : (b)) | |
60 | # endif /* !max */ | |
61 | # ifndef min | |
62 | # define min(a,b) ((a) < (b) ? (a) : (b)) | |
63 | # endif /* !min */ | |
64 | # ifndef abs | |
65 | # define abs(a) ((a) < 0 ? -(a) : (a)) | |
66 | # endif /* !abs */ | |
67 | ||
68 | ||
69 | /* | |
70 | * Types and structures... | |
71 | */ | |
72 | ||
b423cd4c | 73 | typedef enum cups_iztype_e /**** Image zoom type ****/ |
74 | { | |
75 | CUPS_IZOOM_FAST, /* Use nearest-neighbor sampling */ | |
76 | CUPS_IZOOM_NORMAL, /* Use bilinear interpolation */ | |
77 | CUPS_IZOOM_BEST /* Use bicubic interpolation */ | |
78 | } cups_iztype_t; | |
79 | ||
ef416fc2 | 80 | struct cups_ic_s; |
81 | ||
82 | typedef struct cups_itile_s /**** Image tile ****/ | |
83 | { | |
84 | int dirty; /* True if tile is dirty */ | |
3dfe78b3 | 85 | off_t pos; /* Position of tile on disk (-1 if not written) */ |
ef416fc2 | 86 | struct cups_ic_s *ic; /* Pixel data */ |
87 | } cups_itile_t; | |
88 | ||
89 | typedef struct cups_ic_s /**** Image tile cache ****/ | |
90 | { | |
91 | struct cups_ic_s *prev, /* Previous tile in cache */ | |
92 | *next; /* Next tile in cache */ | |
93 | cups_itile_t *tile; /* Tile this is attached to */ | |
94 | cups_ib_t *pixels; /* Pixel data */ | |
95 | } cups_ic_t; | |
96 | ||
97 | struct cups_image_s /**** Image file data ****/ | |
98 | { | |
99 | cups_icspace_t colorspace; /* Colorspace of image */ | |
100 | unsigned xsize, /* Width of image in pixels */ | |
101 | ysize, /* Height of image in pixels */ | |
102 | xppi, /* X resolution in pixels-per-inch */ | |
103 | yppi, /* Y resolution in pixels-per-inch */ | |
104 | num_ics, /* Number of cached tiles */ | |
105 | max_ics; /* Maximum number of cached tiles */ | |
106 | cups_itile_t **tiles; /* Tiles in image */ | |
107 | cups_ic_t *first, /* First cached tile in image */ | |
108 | *last; /* Last cached tile in image */ | |
3dfe78b3 | 109 | int cachefile; /* Tile cache file */ |
ef416fc2 | 110 | char cachename[256]; /* Tile cache filename */ |
111 | }; | |
112 | ||
113 | struct cups_izoom_s /**** Image zoom data ****/ | |
114 | { | |
115 | cups_image_t *img; /* Image to zoom */ | |
116 | cups_iztype_t type; /* Type of zooming */ | |
117 | unsigned xorig, /* X origin */ | |
118 | yorig, /* Y origin */ | |
119 | width, /* Width of input area */ | |
120 | height, /* Height of input area */ | |
121 | depth, /* Number of bytes per pixel */ | |
122 | rotated, /* Non-zero if image needs to be rotated */ | |
123 | xsize, /* Width of output image */ | |
124 | ysize, /* Height of output image */ | |
125 | xmax, /* Maximum input image X position */ | |
126 | ymax, /* Maximum input image Y position */ | |
127 | xmod, /* Threshold for Bresenheim rounding */ | |
128 | ymod; /* ... */ | |
129 | int xstep, /* Amount to step for each pixel along X */ | |
130 | xincr, | |
131 | instep, /* Amount to step pixel pointer along X */ | |
132 | inincr, | |
133 | ystep, /* Amount to step for each pixel along Y */ | |
134 | yincr, | |
135 | row; /* Current row */ | |
136 | cups_ib_t *rows[2], /* Horizontally scaled pixel data */ | |
137 | *in; /* Unscaled input pixel data */ | |
138 | }; | |
139 | ||
140 | ||
141 | /* | |
142 | * Prototypes... | |
143 | */ | |
144 | ||
145 | extern int _cupsImagePutCol(cups_image_t *img, int x, int y, | |
146 | int height, const cups_ib_t *pixels); | |
147 | extern int _cupsImagePutRow(cups_image_t *img, int x, int y, | |
148 | int width, const cups_ib_t *pixels); | |
149 | extern int _cupsImageReadBMP(cups_image_t *img, FILE *fp, | |
150 | cups_icspace_t primary, | |
151 | cups_icspace_t secondary, | |
152 | int saturation, int hue, | |
153 | const cups_ib_t *lut); | |
154 | extern int _cupsImageReadFPX(cups_image_t *img, FILE *fp, | |
155 | cups_icspace_t primary, | |
156 | cups_icspace_t secondary, | |
157 | int saturation, int hue, | |
158 | const cups_ib_t *lut); | |
159 | extern int _cupsImageReadGIF(cups_image_t *img, FILE *fp, | |
160 | cups_icspace_t primary, | |
161 | cups_icspace_t secondary, | |
162 | int saturation, int hue, | |
163 | const cups_ib_t *lut); | |
164 | extern int _cupsImageReadJPEG(cups_image_t *img, FILE *fp, | |
165 | cups_icspace_t primary, | |
166 | cups_icspace_t secondary, | |
167 | int saturation, int hue, | |
168 | const cups_ib_t *lut); | |
169 | extern int _cupsImageReadPIX(cups_image_t *img, FILE *fp, | |
170 | cups_icspace_t primary, | |
171 | cups_icspace_t secondary, | |
172 | int saturation, int hue, | |
173 | const cups_ib_t *lut); | |
174 | extern int _cupsImageReadPNG(cups_image_t *img, FILE *fp, | |
175 | cups_icspace_t primary, | |
176 | cups_icspace_t secondary, | |
177 | int saturation, int hue, | |
178 | const cups_ib_t *lut); | |
179 | extern int _cupsImageReadPNM(cups_image_t *img, FILE *fp, | |
180 | cups_icspace_t primary, | |
181 | cups_icspace_t secondary, | |
182 | int saturation, int hue, | |
183 | const cups_ib_t *lut); | |
184 | extern int _cupsImageReadPhotoCD(cups_image_t *img, FILE *fp, | |
185 | cups_icspace_t primary, | |
186 | cups_icspace_t secondary, | |
187 | int saturation, int hue, | |
188 | const cups_ib_t *lut); | |
189 | extern int _cupsImageReadSGI(cups_image_t *img, FILE *fp, | |
190 | cups_icspace_t primary, | |
191 | cups_icspace_t secondary, | |
192 | int saturation, int hue, | |
193 | const cups_ib_t *lut); | |
194 | extern int _cupsImageReadSunRaster(cups_image_t *img, FILE *fp, | |
195 | cups_icspace_t primary, | |
196 | cups_icspace_t secondary, | |
197 | int saturation, int hue, | |
198 | const cups_ib_t *lut); | |
199 | extern int _cupsImageReadTIFF(cups_image_t *img, FILE *fp, | |
200 | cups_icspace_t primary, | |
201 | cups_icspace_t secondary, | |
202 | int saturation, int hue, | |
203 | const cups_ib_t *lut); | |
b423cd4c | 204 | extern void _cupsImageZoomDelete(cups_izoom_t *z); |
205 | extern void _cupsImageZoomFill(cups_izoom_t *z, int iy); | |
206 | extern cups_izoom_t *_cupsImageZoomNew(cups_image_t *img, int xc0, int yc0, | |
207 | int xc1, int yc1, int xsize, | |
208 | int ysize, int rotated, | |
209 | cups_iztype_t type); | |
ef416fc2 | 210 | |
b86bc4cf | 211 | extern int _cupsRasterExecPS(cups_page_header2_t *h, |
212 | int *preferred_bits, | |
213 | const char *code); | |
f7deaa1a | 214 | extern void _cupsRasterAddError(const char *f, ...); |
215 | extern void _cupsRasterClearError(void); | |
ef416fc2 | 216 | |
217 | #endif /* !_CUPS_IMAGE_PRIVATE_H_ */ | |
218 | ||
219 | /* | |
75bd9771 | 220 | * End of "$Id: image-private.h 7473 2008-04-21 17:51:58Z mike $". |
ef416fc2 | 221 | */ |