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authorDavid Walter Seikel2013-01-13 18:54:10 +1000
committerDavid Walter Seikel2013-01-13 18:54:10 +1000
commit959831f4ef5a3e797f576c3de08cd65032c997ad (patch)
treee7351908be5995f0b325b2ebeaa02d5a34b82583 /libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c
parentAdd info about changes to Irrlicht. (diff)
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Remove damned ancient DOS line endings from Irrlicht. Hopefully I did not go overboard.
Diffstat (limited to 'libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c')
-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c508
1 files changed, 254 insertions, 254 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c b/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c
index 8eacf9f..95ffb34 100644
--- a/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c
+++ b/libraries/irrlicht-1.8/source/Irrlicht/libpng/pngwio.c
@@ -1,254 +1,254 @@
1 1
2/* pngwio.c - functions for data output 2/* pngwio.c - functions for data output
3 * 3 *
4 * Last changed in libpng 1.5.0 [January 6, 2011] 4 * Last changed in libpng 1.5.0 [January 6, 2011]
5 * Copyright (c) 1998-2011 Glenn Randers-Pehrson 5 * Copyright (c) 1998-2011 Glenn Randers-Pehrson
6 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) 6 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
7 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) 7 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
8 * 8 *
9 * This code is released under the libpng license. 9 * This code is released under the libpng license.
10 * For conditions of distribution and use, see the disclaimer 10 * For conditions of distribution and use, see the disclaimer
11 * and license in png.h 11 * and license in png.h
12 * 12 *
13 * This file provides a location for all output. Users who need 13 * This file provides a location for all output. Users who need
14 * special handling are expected to write functions that have the same 14 * special handling are expected to write functions that have the same
15 * arguments as these and perform similar functions, but that possibly 15 * arguments as these and perform similar functions, but that possibly
16 * use different output methods. Note that you shouldn't change these 16 * use different output methods. Note that you shouldn't change these
17 * functions, but rather write replacement functions and then change 17 * functions, but rather write replacement functions and then change
18 * them at run time with png_set_write_fn(...). 18 * them at run time with png_set_write_fn(...).
19 */ 19 */
20 20
21#include "pngpriv.h" 21#include "pngpriv.h"
22 22
23#ifdef PNG_WRITE_SUPPORTED 23#ifdef PNG_WRITE_SUPPORTED
24 24
25/* Write the data to whatever output you are using. The default routine 25/* Write the data to whatever output you are using. The default routine
26 * writes to a file pointer. Note that this routine sometimes gets called 26 * writes to a file pointer. Note that this routine sometimes gets called
27 * with very small lengths, so you should implement some kind of simple 27 * with very small lengths, so you should implement some kind of simple
28 * buffering if you are using unbuffered writes. This should never be asked 28 * buffering if you are using unbuffered writes. This should never be asked
29 * to write more than 64K on a 16 bit machine. 29 * to write more than 64K on a 16 bit machine.
30 */ 30 */
31 31
32void /* PRIVATE */ 32void /* PRIVATE */
33png_write_data(png_structp png_ptr, png_const_bytep data, png_size_t length) 33png_write_data(png_structp png_ptr, png_const_bytep data, png_size_t length)
34{ 34{
35 /* NOTE: write_data_fn must not change the buffer! */ 35 /* NOTE: write_data_fn must not change the buffer! */
36 if (png_ptr->write_data_fn != NULL ) 36 if (png_ptr->write_data_fn != NULL )
37 (*(png_ptr->write_data_fn))(png_ptr, (png_bytep)data, length); 37 (*(png_ptr->write_data_fn))(png_ptr, (png_bytep)data, length);
38 38
39 else 39 else
40 png_error(png_ptr, "Call to NULL write function"); 40 png_error(png_ptr, "Call to NULL write function");
41} 41}
42 42
43#ifdef PNG_STDIO_SUPPORTED 43#ifdef PNG_STDIO_SUPPORTED
44/* This is the function that does the actual writing of data. If you are 44/* This is the function that does the actual writing of data. If you are
45 * not writing to a standard C stream, you should create a replacement 45 * not writing to a standard C stream, you should create a replacement
46 * write_data function and use it at run time with png_set_write_fn(), rather 46 * write_data function and use it at run time with png_set_write_fn(), rather
47 * than changing the library. 47 * than changing the library.
48 */ 48 */
49#ifndef USE_FAR_KEYWORD 49#ifndef USE_FAR_KEYWORD
50void PNGCBAPI 50void PNGCBAPI
51png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) 51png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
52{ 52{
53 png_size_t check; 53 png_size_t check;
54 54
55 if (png_ptr == NULL) 55 if (png_ptr == NULL)
56 return; 56 return;
57 57
58 check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr)); 58 check = fwrite(data, 1, length, (png_FILE_p)(png_ptr->io_ptr));
59 59
60 if (check != length) 60 if (check != length)
61 png_error(png_ptr, "Write Error"); 61 png_error(png_ptr, "Write Error");
62} 62}
63#else 63#else
64/* This is the model-independent version. Since the standard I/O library 64/* This is the model-independent version. Since the standard I/O library
65 * can't handle far buffers in the medium and small models, we have to copy 65 * can't handle far buffers in the medium and small models, we have to copy
66 * the data. 66 * the data.
67 */ 67 */
68 68
69#define NEAR_BUF_SIZE 1024 69#define NEAR_BUF_SIZE 1024
70#define MIN(a,b) (a <= b ? a : b) 70#define MIN(a,b) (a <= b ? a : b)
71 71
72void PNGCBAPI 72void PNGCBAPI
73png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length) 73png_default_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
74{ 74{
75 png_uint_32 check; 75 png_uint_32 check;
76 png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */ 76 png_byte *near_data; /* Needs to be "png_byte *" instead of "png_bytep" */
77 png_FILE_p io_ptr; 77 png_FILE_p io_ptr;
78 78
79 if (png_ptr == NULL) 79 if (png_ptr == NULL)
80 return; 80 return;
81 81
82 /* Check if data really is near. If so, use usual code. */ 82 /* Check if data really is near. If so, use usual code. */
83 near_data = (png_byte *)CVT_PTR_NOCHECK(data); 83 near_data = (png_byte *)CVT_PTR_NOCHECK(data);
84 io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr); 84 io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
85 85
86 if ((png_bytep)near_data == data) 86 if ((png_bytep)near_data == data)
87 { 87 {
88 check = fwrite(near_data, 1, length, io_ptr); 88 check = fwrite(near_data, 1, length, io_ptr);
89 } 89 }
90 90
91 else 91 else
92 { 92 {
93 png_byte buf[NEAR_BUF_SIZE]; 93 png_byte buf[NEAR_BUF_SIZE];
94 png_size_t written, remaining, err; 94 png_size_t written, remaining, err;
95 check = 0; 95 check = 0;
96 remaining = length; 96 remaining = length;
97 97
98 do 98 do
99 { 99 {
100 written = MIN(NEAR_BUF_SIZE, remaining); 100 written = MIN(NEAR_BUF_SIZE, remaining);
101 png_memcpy(buf, data, written); /* Copy far buffer to near buffer */ 101 png_memcpy(buf, data, written); /* Copy far buffer to near buffer */
102 err = fwrite(buf, 1, written, io_ptr); 102 err = fwrite(buf, 1, written, io_ptr);
103 103
104 if (err != written) 104 if (err != written)
105 break; 105 break;
106 106
107 else 107 else
108 check += err; 108 check += err;
109 109
110 data += written; 110 data += written;
111 remaining -= written; 111 remaining -= written;
112 } 112 }
113 while (remaining != 0); 113 while (remaining != 0);
114 } 114 }
115 115
116 if (check != length) 116 if (check != length)
117 png_error(png_ptr, "Write Error"); 117 png_error(png_ptr, "Write Error");
118} 118}
119 119
120#endif 120#endif
121#endif 121#endif
122 122
123/* This function is called to output any data pending writing (normally 123/* This function is called to output any data pending writing (normally
124 * to disk). After png_flush is called, there should be no data pending 124 * to disk). After png_flush is called, there should be no data pending
125 * writing in any buffers. 125 * writing in any buffers.
126 */ 126 */
127#ifdef PNG_WRITE_FLUSH_SUPPORTED 127#ifdef PNG_WRITE_FLUSH_SUPPORTED
128void /* PRIVATE */ 128void /* PRIVATE */
129png_flush(png_structp png_ptr) 129png_flush(png_structp png_ptr)
130{ 130{
131 if (png_ptr->output_flush_fn != NULL) 131 if (png_ptr->output_flush_fn != NULL)
132 (*(png_ptr->output_flush_fn))(png_ptr); 132 (*(png_ptr->output_flush_fn))(png_ptr);
133} 133}
134 134
135# ifdef PNG_STDIO_SUPPORTED 135# ifdef PNG_STDIO_SUPPORTED
136void PNGCBAPI 136void PNGCBAPI
137png_default_flush(png_structp png_ptr) 137png_default_flush(png_structp png_ptr)
138{ 138{
139 png_FILE_p io_ptr; 139 png_FILE_p io_ptr;
140 140
141 if (png_ptr == NULL) 141 if (png_ptr == NULL)
142 return; 142 return;
143 143
144 io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr)); 144 io_ptr = (png_FILE_p)CVT_PTR((png_ptr->io_ptr));
145 fflush(io_ptr); 145 fflush(io_ptr);
146} 146}
147# endif 147# endif
148#endif 148#endif
149 149
150/* This function allows the application to supply new output functions for 150/* This function allows the application to supply new output functions for
151 * libpng if standard C streams aren't being used. 151 * libpng if standard C streams aren't being used.
152 * 152 *
153 * This function takes as its arguments: 153 * This function takes as its arguments:
154 * png_ptr - pointer to a png output data structure 154 * png_ptr - pointer to a png output data structure
155 * io_ptr - pointer to user supplied structure containing info about 155 * io_ptr - pointer to user supplied structure containing info about
156 * the output functions. May be NULL. 156 * the output functions. May be NULL.
157 * write_data_fn - pointer to a new output function that takes as its 157 * write_data_fn - pointer to a new output function that takes as its
158 * arguments a pointer to a png_struct, a pointer to 158 * arguments a pointer to a png_struct, a pointer to
159 * data to be written, and a 32-bit unsigned int that is 159 * data to be written, and a 32-bit unsigned int that is
160 * the number of bytes to be written. The new write 160 * the number of bytes to be written. The new write
161 * function should call png_error(png_ptr, "Error msg") 161 * function should call png_error(png_ptr, "Error msg")
162 * to exit and output any fatal error messages. May be 162 * to exit and output any fatal error messages. May be
163 * NULL, in which case libpng's default function will 163 * NULL, in which case libpng's default function will
164 * be used. 164 * be used.
165 * flush_data_fn - pointer to a new flush function that takes as its 165 * flush_data_fn - pointer to a new flush function that takes as its
166 * arguments a pointer to a png_struct. After a call to 166 * arguments a pointer to a png_struct. After a call to
167 * the flush function, there should be no data in any buffers 167 * the flush function, there should be no data in any buffers
168 * or pending transmission. If the output method doesn't do 168 * or pending transmission. If the output method doesn't do
169 * any buffering of output, a function prototype must still be 169 * any buffering of output, a function prototype must still be
170 * supplied although it doesn't have to do anything. If 170 * supplied although it doesn't have to do anything. If
171 * PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile 171 * PNG_WRITE_FLUSH_SUPPORTED is not defined at libpng compile
172 * time, output_flush_fn will be ignored, although it must be 172 * time, output_flush_fn will be ignored, although it must be
173 * supplied for compatibility. May be NULL, in which case 173 * supplied for compatibility. May be NULL, in which case
174 * libpng's default function will be used, if 174 * libpng's default function will be used, if
175 * PNG_WRITE_FLUSH_SUPPORTED is defined. This is not 175 * PNG_WRITE_FLUSH_SUPPORTED is defined. This is not
176 * a good idea if io_ptr does not point to a standard 176 * a good idea if io_ptr does not point to a standard
177 * *FILE structure. 177 * *FILE structure.
178 */ 178 */
179void PNGAPI 179void PNGAPI
180png_set_write_fn(png_structp png_ptr, png_voidp io_ptr, 180png_set_write_fn(png_structp png_ptr, png_voidp io_ptr,
181 png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn) 181 png_rw_ptr write_data_fn, png_flush_ptr output_flush_fn)
182{ 182{
183 if (png_ptr == NULL) 183 if (png_ptr == NULL)
184 return; 184 return;
185 185
186 png_ptr->io_ptr = io_ptr; 186 png_ptr->io_ptr = io_ptr;
187 187
188#ifdef PNG_STDIO_SUPPORTED 188#ifdef PNG_STDIO_SUPPORTED
189 if (write_data_fn != NULL) 189 if (write_data_fn != NULL)
190 png_ptr->write_data_fn = write_data_fn; 190 png_ptr->write_data_fn = write_data_fn;
191 191
192 else 192 else
193 png_ptr->write_data_fn = png_default_write_data; 193 png_ptr->write_data_fn = png_default_write_data;
194#else 194#else
195 png_ptr->write_data_fn = write_data_fn; 195 png_ptr->write_data_fn = write_data_fn;
196#endif 196#endif
197 197
198#ifdef PNG_WRITE_FLUSH_SUPPORTED 198#ifdef PNG_WRITE_FLUSH_SUPPORTED
199# ifdef PNG_STDIO_SUPPORTED 199# ifdef PNG_STDIO_SUPPORTED
200 200
201 if (output_flush_fn != NULL) 201 if (output_flush_fn != NULL)
202 png_ptr->output_flush_fn = output_flush_fn; 202 png_ptr->output_flush_fn = output_flush_fn;
203 203
204 else 204 else
205 png_ptr->output_flush_fn = png_default_flush; 205 png_ptr->output_flush_fn = png_default_flush;
206 206
207# else 207# else
208 png_ptr->output_flush_fn = output_flush_fn; 208 png_ptr->output_flush_fn = output_flush_fn;
209# endif 209# endif
210#endif /* PNG_WRITE_FLUSH_SUPPORTED */ 210#endif /* PNG_WRITE_FLUSH_SUPPORTED */
211 211
212 /* It is an error to read while writing a png file */ 212 /* It is an error to read while writing a png file */
213 if (png_ptr->read_data_fn != NULL) 213 if (png_ptr->read_data_fn != NULL)
214 { 214 {
215 png_ptr->read_data_fn = NULL; 215 png_ptr->read_data_fn = NULL;
216 216
217 png_warning(png_ptr, 217 png_warning(png_ptr,
218 "Can't set both read_data_fn and write_data_fn in the" 218 "Can't set both read_data_fn and write_data_fn in the"
219 " same structure"); 219 " same structure");
220 } 220 }
221} 221}
222 222
223#ifdef USE_FAR_KEYWORD 223#ifdef USE_FAR_KEYWORD
224# ifdef _MSC_VER 224# ifdef _MSC_VER
225void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check) 225void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
226{ 226{
227 void *near_ptr; 227 void *near_ptr;
228 void FAR *far_ptr; 228 void FAR *far_ptr;
229 FP_OFF(near_ptr) = FP_OFF(ptr); 229 FP_OFF(near_ptr) = FP_OFF(ptr);
230 far_ptr = (void FAR *)near_ptr; 230 far_ptr = (void FAR *)near_ptr;
231 231
232 if (check != 0) 232 if (check != 0)
233 if (FP_SEG(ptr) != FP_SEG(far_ptr)) 233 if (FP_SEG(ptr) != FP_SEG(far_ptr))
234 png_error(png_ptr, "segment lost in conversion"); 234 png_error(png_ptr, "segment lost in conversion");
235 235
236 return(near_ptr); 236 return(near_ptr);
237} 237}
238# else 238# else
239void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check) 239void *png_far_to_near(png_structp png_ptr, png_voidp ptr, int check)
240{ 240{
241 void *near_ptr; 241 void *near_ptr;
242 void FAR *far_ptr; 242 void FAR *far_ptr;
243 near_ptr = (void FAR *)ptr; 243 near_ptr = (void FAR *)ptr;
244 far_ptr = (void FAR *)near_ptr; 244 far_ptr = (void FAR *)near_ptr;
245 245
246 if (check != 0) 246 if (check != 0)
247 if (far_ptr != ptr) 247 if (far_ptr != ptr)
248 png_error(png_ptr, "segment lost in conversion"); 248 png_error(png_ptr, "segment lost in conversion");
249 249
250 return(near_ptr); 250 return(near_ptr);
251} 251}
252# endif 252# endif
253#endif 253#endif
254#endif /* PNG_WRITE_SUPPORTED */ 254#endif /* PNG_WRITE_SUPPORTED */