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gerrit-public.fairphone.software / platform / external / libpng / f8b008cd4376f90fe9c9d1eaf2134898d25f5e89 / . / scripts / pngdef.pas
blob: 94e859acfb7a0e900a2b473c668d61ea86828296 [file] [log] [blame]
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]1unit pngdef;
2
3interface
4
5const
Glenn Randers-Pehrsonf8b008c1999-09-18 10:54:36 -0500[diff] [blame^]6 PNG_LIBPNG_VER_STRING = '1.0.4';
7 PNG_LIBPNG_VER = 10004;
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]8
9type
10 png_uint_32 = Cardinal;
11 png_int_32 = Longint;
12 png_uint_16 = Word;
13 png_int_16 = Smallint;
14 png_byte = Byte;
15 png_size_t = png_uint_32;
16 png_charpp = ^png_charp;
17 png_charp = PChar;
18 float = single;
19 int = Integer;
20 png_bytepp = ^png_bytep;
21 png_bytep = ^png_byte;
22 png_uint_16p = ^png_uint_16;
23 png_uint_16pp = ^png_uint_16p;
24 png_voidp = pointer;
25 time_t = Longint;
26 png_doublep = ^png_double;
27 png_double = double;
28
29 user_error_ptr = Pointer;
30 png_error_ptrp = ^png_error_ptr;
31 png_error_ptr = procedure(png_ptr: Pointer; msg: Pointer);
32 stdcall;
33 png_rw_ptrp = ^png_rw_ptr;
34 png_rw_ptr = procedure(png_ptr: Pointer; data: Pointer;
35 length: png_size_t);
36 stdcall;
37 png_flush_ptrp = ^png_flush_ptr;
38 png_flush_ptr = procedure(png_ptr: Pointer);
39 stdcall;
40 png_progressive_info_ptrp = ^png_progressive_info_ptr;
41 png_progressive_info_ptr = procedure(png_ptr: Pointer;
42 info_ptr: Pointer);
43 stdcall;
44 png_progressive_end_ptrp = ^png_progressive_end_ptr;
45 png_progressive_end_ptr = procedure(png_ptr: Pointer;
46 info_ptr: Pointer);
47 stdcall;
48 png_progressive_row_ptrp = ^png_progressive_row_ptr;
49 png_progressive_row_ptr = procedure(png_ptr: Pointer;
50 data: Pointer; length: png_uint_32;
51 count: int);
52 stdcall;
53 png_read_status_ptr = procedure(png_ptr: Pointer;
54 row_number: png_uint_32; pass: int);
55 stdcall;
56 png_write_status_ptr = procedure(png_ptr: Pointer;
57 row_number: png_uint_32; pass: int);
58 stdcall;
59 png_user_transform_ptr = procedure(png_ptr: Pointer;
60 row_info: Pointer; data: png_bytep);
61 stdcall;
62
63 png_colorpp = ^png_colorp;
64 png_colorp = ^png_color;
65 png_color = packed record
66 red, green, blue: png_byte;
67 end;
68
69 png_color_16pp = ^png_color_16p;
70 png_color_16p = ^png_color_16;
71 png_color_16 = packed record
72 index: png_byte; //used for palette files
73 red, green, blue: png_uint_16; //for use in red green blue files
74 gray: png_uint_16; //for use in grayscale files
75 end;
76
77 png_color_8pp = ^png_color_8p;
78 png_color_8p = ^png_color_8;
79 png_color_8 = packed record
80 red, green, blue: png_byte; //for use in red green blue files
81 gray: png_byte; //for use in grayscale files
82 alpha: png_byte; //for alpha channel files
83 end;
84
85 png_textpp = ^png_textp;
86 png_textp = ^png_text;
87 png_text = packed record
88 compression: int; //compression value
89 key: png_charp; //keyword, 1-79 character description of "text"
90 text: png_charp; //comment, may be empty ("")
91 text_length: png_size_t; //length of text field
92 end;
93
94 png_timepp = ^png_timep;
95 png_timep = ^png_time;
96 png_time = packed record
97 year: png_uint_16; //yyyy
98 month: png_byte; //1..12
99 day: png_byte; //1..31
100 hour: png_byte; //0..23
101 minute: png_byte; //0..59
102 second: png_byte; //0..60 (leap seconds)
103 end;
104
105 png_infopp = ^png_infop;
106 png_infop = Pointer;
107
108 png_row_infopp = ^png_row_infop;
109 png_row_infop = ^png_row_info;
110 png_row_info = packed record
111 width: png_uint_32; //width of row
112 rowbytes: png_size_t; //number of bytes in row
113 color_type: png_byte; //color type of row
114 bit_depth: png_byte; //bit depth of row
115 channels: png_byte; //number of channels (1, 2, 3, or 4)
116 pixel_depth: png_byte; //bits per pixel (depth * channels)
117 end;
118
119 png_structpp = ^png_structp;
120 png_structp = Pointer;
121
122const
123
124// Supported compression types for text in PNG files (tEXt, and zTXt).
125// The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed.
126
127 PNG_TEXT_COMPRESSION_NONE_WR = -3;
128 PNG_TEXT_COMPRESSION_zTXt_WR = -2;
129 PNG_TEXT_COMPRESSION_NONE = -1;
130 PNG_TEXT_COMPRESSION_zTXt = 0;
131
132// These describe the color_type field in png_info.
133// color type masks
134
135 PNG_COLOR_MASK_PALETTE = 1;
136 PNG_COLOR_MASK_COLOR = 2;
137 PNG_COLOR_MASK_ALPHA = 4;
138
139// color types. Note that not all combinations are legal
140
141 PNG_COLOR_TYPE_GRAY = 0;
142 PNG_COLOR_TYPE_PALETTE = PNG_COLOR_MASK_COLOR or
143 PNG_COLOR_MASK_PALETTE;
144 PNG_COLOR_TYPE_RGB = PNG_COLOR_MASK_COLOR;
145 PNG_COLOR_TYPE_RGB_ALPHA = PNG_COLOR_MASK_COLOR or
146 PNG_COLOR_MASK_ALPHA;
147 PNG_COLOR_TYPE_GRAY_ALPHA = PNG_COLOR_MASK_ALPHA;
148
149// This is for compression type. PNG 1.0 only defines the single type.
150
151 PNG_COMPRESSION_TYPE_BASE = 0; // Deflate method 8, 32K window
152 PNG_COMPRESSION_TYPE_DEFAULT = PNG_COMPRESSION_TYPE_BASE;
153
154// This is for filter type. PNG 1.0 only defines the single type.
155
156 PNG_FILTER_TYPE_BASE = 0; // Single row per-byte filtering
157 PNG_FILTER_TYPE_DEFAULT = PNG_FILTER_TYPE_BASE;
158
159// These are for the interlacing type. These values should NOT be changed.
160
161 PNG_INTERLACE_NONE = 0; // Non-interlaced image
162 PNG_INTERLACE_ADAM7 = 1; // Adam7 interlacing
163
164// These are for the oFFs chunk. These values should NOT be changed.
165
166 PNG_OFFSET_PIXEL = 0; // Offset in pixels
167 PNG_OFFSET_MICROMETER = 1; // Offset in micrometers (1/10^6 meter)
168
169// These are for the pCAL chunk. These values should NOT be changed.
170
171 PNG_EQUATION_LINEAR = 0; // Linear transformation
172 PNG_EQUATION_BASE_E = 1; // Exponential base e transform
173 PNG_EQUATION_ARBITRARY = 2; // Arbitrary base exponential transform
174 PNG_EQUATION_HYPERBOLIC = 3; // Hyperbolic sine transformation
175
176// These are for the pHYs chunk. These values should NOT be changed.
177
178 PNG_RESOLUTION_UNKNOWN = 0; // pixels/unknown unit (aspect ratio)
179 PNG_RESOLUTION_METER = 1; // pixels/meter
180
181// These are for the sRGB chunk. These values should NOT be changed.
182 PNG_sRGB_INTENT_SATURATION = 0;
183 PNG_sRGB_INTENT_PERCEPTUAL = 1;
184 PNG_sRGB_INTENT_ABSOLUTE = 2;
185 PNG_sRGB_INTENT_RELATIVE = 3;
186
187// Handle alpha and tRNS by replacing with a background color.
188 PNG_BACKGROUND_GAMMA_UNKNOWN = 0;
189 PNG_BACKGROUND_GAMMA_SCREEN = 1;
190 PNG_BACKGROUND_GAMMA_FILE = 2;
191 PNG_BACKGROUND_GAMMA_UNIQUE = 3;
192
193// Values for png_set_crc_action() to say how to handle CRC errors in
194// ancillary and critical chunks, and whether to use the data contained
195// therein. Note that it is impossible to "discard" data in a critical
196// chunk. For versions prior to 0.90, the action was always error/quit,
197// whereas in version 0.90 and later, the action for CRC errors in ancillary
198// chunks is warn/discard. These values should NOT be changed.
199
200// value action:critical action:ancillary
201
202 PNG_CRC_DEFAULT = 0; // error/quit warn/discard data
203 PNG_CRC_ERROR_QUIT = 1; // error/quit error/quit
204 PNG_CRC_WARN_DISCARD = 2; // (INVALID) warn/discard data
205 PNG_CRC_WARN_USE = 3; // warn/use data warn/use data
206 PNG_CRC_QUIET_USE = 4; // quiet/use data quiet/use data
207 PNG_CRC_NO_CHANGE = 5; // use current value use current value
208
209// Flags for png_set_filter() to say which filters to use. The flags
210// are chosen so that they don't conflict with real filter types
211// below, in case they are supplied instead of the #defined constants.
212// These values should NOT be changed.
213
214 PNG_NO_FILTERS = $00;
215 PNG_FILTER_NONE = $08;
216 PNG_FILTER_SUB = $10;
217 PNG_FILTER_UP = $20;
218 PNG_FILTER_AVG = $40;
219 PNG_FILTER_PAETH = $80;
220 PNG_ALL_FILTERS = PNG_FILTER_NONE or PNG_FILTER_SUB or
221 PNG_FILTER_UP or PNG_FILTER_AVG or
222 PNG_FILTER_PAETH;
223
224// Filter values (not flags) - used in pngwrite.c, pngwutil.c for now.
225// These defines should NOT be changed.
226
227 PNG_FILTER_VALUE_NONE = 0;
228 PNG_FILTER_VALUE_SUB = 1;
229 PNG_FILTER_VALUE_UP = 2;
230 PNG_FILTER_VALUE_AVG = 3;
231 PNG_FILTER_VALUE_PAETH = 4;
232
233// Heuristic used for row filter selection. These defines should NOT be
234// changed.
235
236 PNG_FILTER_HEURISTIC_DEFAULT = 0; // Currently "UNWEIGHTED"
237 PNG_FILTER_HEURISTIC_UNWEIGHTED = 1; // Used by libpng < 0.95
238 PNG_FILTER_HEURISTIC_WEIGHTED = 2; // Experimental feature
239 PNG_FILTER_HEURISTIC_LAST = 3; // Not a valid value
240
241procedure png_build_grayscale_palette(bit_depth: int; palette: png_colorp);
242 stdcall;
243function png_check_sig(sig: png_bytep; num: int): int;
244 stdcall;
245procedure png_chunk_error(png_ptr: png_structp;
246 const mess: png_charp);
247 stdcall;
248procedure png_chunk_warning(png_ptr: png_structp;
249 const mess: png_charp);
250 stdcall;
251procedure png_convert_from_time_t(ptime: png_timep; ttime: time_t);
252 stdcall;
253function png_convert_to_rfc1123(png_ptr: png_structp; ptime: png_timep):
254 png_charp;
255 stdcall;
256function png_create_info_struct(png_ptr: png_structp): png_infop;
257 stdcall;
258function png_create_read_struct(user_png_ver: png_charp;
259 error_ptr: user_error_ptr; error_fn: png_error_ptr;
260 warn_fn: png_error_ptr): png_structp;
261 stdcall;
Glenn Randers-Pehrson5c6aeb21998-12-29 11:47:59 -0600[diff] [blame]262function png_get_copyright(png_ptr: png_structp): png_charp;
263 stdcall;
264function png_get_header_version(png_ptr: png_structp): png_charp;
265 stdcall;
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]266function png_create_write_struct(user_png_ver: png_charp;
267 error_ptr: user_error_ptr; error_fn: png_error_ptr;
268 warn_fn: png_error_ptr): png_structp;
269 stdcall;
270procedure png_destroy_info_struct(png_ptr: png_structp;
271 info_ptr_ptr: png_infopp);
272 stdcall;
273procedure png_destroy_read_struct(png_ptr_ptr: png_structpp;
274 info_ptr_ptr, end_info_ptr_ptr: png_infopp);
275 stdcall;
276procedure png_destroy_write_struct(png_ptr_ptr: png_structpp;
277 info_ptr_ptr: png_infopp);
278 stdcall;
279function png_get_IHDR(png_ptr: png_structp; info_ptr: png_infop;
280 var width, height: png_uint_32; var bit_depth,
281 color_type, interlace_type, compression_type,
282 filter_type: int): png_uint_32;
283 stdcall;
284function png_get_PLTE(png_ptr: png_structp; info_ptr: png_infop;
285 var palette: png_colorp; var num_palette: int):
286 png_uint_32;
287 stdcall;
288function png_get_bKGD(png_ptr: png_structp; info_ptr: png_infop;
289 var background: png_color_16p): png_uint_32;
290 stdcall;
291function png_get_bit_depth(png_ptr: png_structp; info_ptr: png_infop):
292 png_byte;
293 stdcall;
294function png_get_cHRM(png_ptr: png_structp; info_ptr: png_infop;
295 var white_x, white_y, red_x, red_y, green_x, green_y,
296 blue_x, blue_y: double): png_uint_32;
297 stdcall;
298function png_get_channels(png_ptr: png_structp; info_ptr: png_infop):
299 png_byte;
300 stdcall;
301function png_get_color_type(png_ptr: png_structp; info_ptr: png_infop):
302 png_byte;
303 stdcall;
304function png_get_compression_type(png_ptr: png_structp;
305 info_ptr: png_infop): png_byte;
306 stdcall;
307function png_get_error_ptr(png_ptr: png_structp): png_voidp;
308 stdcall;
309function png_get_filter_type(png_ptr: png_structp; info_ptr: png_infop):
310 png_byte;
311 stdcall;
312function png_get_gAMA(png_ptr: png_structp; info_ptr: png_infop;
313 var file_gamma: double): png_uint_32;
314 stdcall;
315function png_get_hIST(png_ptr: png_structp; info_ptr: png_infop;
316 var hist: png_uint_16p): png_uint_32;
317 stdcall;
318function png_get_image_height(png_ptr: png_structp; info_ptr: png_infop):
319 png_uint_32;
320 stdcall;
321function png_get_image_width(png_ptr: png_structp; info_ptr: png_infop):
322 png_uint_32;
323 stdcall;
324function png_get_interlace_type(png_ptr: png_structp;
325 info_ptr: png_infop): png_byte;
326 stdcall;
327function png_get_io_ptr(png_ptr: png_structp): png_voidp;
328 stdcall;
329function png_get_oFFs(png_ptr: png_structp; info_ptr: png_infop;
330 var offset_x, offset_y: png_uint_32;
331 var unit_type: int): png_uint_32;
332 stdcall;
333function png_get_pCAL(png_ptr: png_structp; info_ptr: png_infop;
334 var purpose: png_charp; var X0, X1: png_int_32;
335 var typ, nparams: int; var units: png_charp;
336 var params: png_charpp): png_uint_32;
337 stdcall;
338function png_get_pHYs(png_ptr: png_structp; info_ptr: png_infop;
339 var res_x, res_y: png_uint_32; var unit_type: int):
340 png_uint_32;
341 stdcall;
342function png_get_pixel_aspect_ratio(png_ptr: png_structp;
343 info_ptr: png_infop): float;
344 stdcall;
345function png_get_pixels_per_meter(png_ptr: png_structp;
346 info_ptr: png_infop): png_uint_32;
347 stdcall;
348function png_get_progressive_ptr(png_ptr: png_structp): png_voidp;
349 stdcall;
Glenn Randers-Pehrson5c6aeb21998-12-29 11:47:59 -0600[diff] [blame]350function png_get_rgb_to_gray_status(png_ptr: png_structp);
351 stdcall;
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]352function png_get_rowbytes(png_ptr: png_structp; info_ptr: png_infop):
353 png_uint_32;
354 stdcall;
355function png_get_sBIT(png_ptr: png_structp; info_ptr: png_infop;
356 var sig_bits: png_color_8p): png_uint_32;
357 stdcall;
358function png_get_sRGB(png_ptr: png_structp; info_ptr: png_infop;
359 var file_srgb_intent: int): png_uint_32;
360 stdcall;
361function png_get_signature(png_ptr: png_structp; info_ptr: png_infop):
362 png_bytep;
363 stdcall;
364function png_get_tIME(png_ptr: png_structp; info_ptr: png_infop;
365 var mod_time: png_timep): png_uint_32;
366 stdcall;
367function png_get_tRNS(png_ptr: png_structp; info_ptr: png_infop;
368 var trans: png_bytep; var num_trans: int;
369 var trans_values: png_color_16p): png_uint_32;
370 stdcall;
371function png_get_text(png_ptr: png_structp; info_ptr: png_infop;
372 var text_ptr: png_textp; var num_text: int):
373 png_uint_32;
374 stdcall;
375function png_get_valid(png_ptr: png_structp; info_ptr: png_infop;
376 flag: png_uint_32): png_uint_32;
377 stdcall;
378function png_get_x_offset_microns(png_ptr: png_structp;
379 info_ptr: png_infop): png_uint_32;
380 stdcall;
381function png_get_x_offset_pixels(png_ptr: png_structp;
382 info_ptr: png_infop): png_uint_32;
383 stdcall;
384function png_get_x_pixels_per_meter(png_ptr: png_structp;
385 info_ptr: png_infop): png_uint_32;
386 stdcall;
387function png_get_y_offset_microns(png_ptr: png_structp;
388 info_ptr: png_infop): png_uint_32;
389 stdcall;
390function png_get_y_offset_pixels(png_ptr: png_structp;
391 info_ptr: png_infop): png_uint_32;
392 stdcall;
393function png_get_y_pixels_per_meter(png_ptr: png_structp;
394 info_ptr: png_infop): png_uint_32;
395 stdcall;
396procedure png_process_data(png_ptr: png_structp; info_ptr: png_infop;
397 buffer: png_bytep; buffer_size: png_size_t);
398 stdcall;
399procedure png_progressive_combine_row(png_ptr: png_structp;
400 old_row, new_row: png_bytep);
401 stdcall;
402procedure png_read_end(png_ptr: png_structp; info_ptr: png_infop);
403 stdcall;
404procedure png_read_image(png_ptr: png_structp; image: png_bytepp);
405 stdcall;
406procedure png_read_info(png_ptr: png_structp; info_ptr: png_infop);
407 stdcall;
408procedure png_read_row(png_ptr: png_structp; row, dsp_row: png_bytep);
409 stdcall;
410procedure png_read_rows(png_ptr: png_structp; row, display_row:
411 png_bytepp; num_rows: png_uint_32);
412 stdcall;
413procedure png_read_update_info(png_ptr: png_structp; info_ptr: png_infop);
414 stdcall;
415procedure png_set_IHDR(png_ptr: png_structp; info_ptr: png_infop;
416 width, height: png_uint_32; bit_depth, color_type,
417 interlace_type, compression_type, filter_type: int);
418 stdcall;
419procedure png_set_PLTE(png_ptr: png_structp; info_ptr: png_infop;
420 palette: png_colorp; num_palette: int);
421 stdcall;
422procedure png_set_bKGD(png_ptr: png_structp; info_ptr: png_infop;
423 background: png_color_16p);
424 stdcall;
425procedure png_set_background(png_ptr: png_structp;
426 background_color: png_color_16p;
427 background_gamma_code, need_expand: int;
428 background_gamma: double);
429 stdcall;
430procedure png_set_bgr(png_ptr: png_structp);
431 stdcall;
432procedure png_set_cHRM(png_ptr: png_structp; info_ptr: png_infop;
433 white_x, white_y, red_x, red_y, green_x, green_y,
434 blue_x, blue_y: double);
435 stdcall;
436procedure png_set_compression_level(png_ptr: png_structp; level: int);
437 stdcall;
438procedure png_set_compression_mem_level(png_ptr: png_structp;
439 mem_level: int);
440 stdcall;
441procedure png_set_compression_method(png_ptr: png_structp; method: int);
442 stdcall;
443procedure png_set_compression_strategy(png_ptr: png_structp;
444 strategy: int);
445 stdcall;
446procedure png_set_compression_window_bits(png_ptr: png_structp;
447 window_bits: int);
448 stdcall;
449procedure png_set_crc_action(png_ptr: png_structp;
450 crit_action, ancil_action: int);
451 stdcall;
452procedure png_set_dither(png_ptr: png_structp; plaette: png_colorp;
453 num_palette, maximum_colors: int;
454 histogram: png_uint_16p; full_dither: int);
455 stdcall;
456procedure png_set_error_fn(png_ptr: png_structp; error_ptr: png_voidp;
457 error_fn, warning_fn: png_error_ptr);
458 stdcall;
459procedure png_set_expand(png_ptr: png_structp);
460 stdcall;
461procedure png_set_filler(png_ptr: png_structp; filler: png_uint_32;
462 filler_loc: int);
463 stdcall;
464procedure png_set_filter(png_ptr: png_structp; method, filters: int);
465 stdcall;
466procedure png_set_filter_heuristics(png_ptr: png_structp;
467 heuristic_method, num_weights: int;
468 filter_weights, filter_costs: png_doublep);
469 stdcall;
470procedure png_set_flush(png_ptr: png_structp; nrows: int);
471 stdcall;
472procedure png_set_gAMA(png_ptr: png_structp; info_ptr: png_infop;
473 file_gamma: double);
474 stdcall;
475procedure png_set_gamma(png_ptr: png_structp; screen_gamma,
476 default_file_gamma: double);
477 stdcall;
Glenn Randers-Pehrson4393a9a1999-09-17 12:27:26 -0500[diff] [blame]478procedure png_set_gray_1_2_4_to_8(png_ptr: png_structp);
479 stdcall;
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]480procedure png_set_gray_to_rgb(png_ptr: png_structp);
481 stdcall;
482procedure png_set_hIST(png_ptr: png_structp; info_ptr: png_infop;
483 hist: png_uint_16p);
484 stdcall;
485function png_set_interlace_handling(png_ptr: png_structp): int;
486 stdcall;
487procedure png_set_invert_alpha(png_ptr: png_structp);
488 stdcall;
489procedure png_set_invert_mono(png_ptr: png_structp);
490 stdcall;
491procedure png_set_oFFs(png_ptr: png_structp; info_ptr: png_infop;
492 offset_x, offset_y: png_uint_32; unit_type: int);
493 stdcall;
Glenn Randers-Pehrson4393a9a1999-09-17 12:27:26 -0500[diff] [blame]494procedure png_set_palette_to_rgb(png_ptr: png_structp);
495 stdcall;
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]496procedure png_set_pCAL(png_ptr: png_structp; info_ptr: png_infop;
497 purpose: png_charp; X0, X1: png_int_32;
498 typ, nparams: int; units: png_charp;
499 params: png_charpp);
500 stdcall;
501procedure png_set_pHYs(png_ptr: png_structp; info_ptr: png_infop;
502 res_x, res_y: png_uint_32; unit_type: int);
503 stdcall;
504procedure png_set_packing(png_ptr: png_structp);
505 stdcall;
506procedure png_set_packswap(png_ptr: png_structp);
507 stdcall;
508procedure png_set_progressive_read_fn(png_ptr: png_structp;
509 progressive_ptr: png_voidp;
510 info_fn: png_progressive_info_ptr;
511 row_fn: png_progressive_row_ptr;
512 end_fn: png_progressive_end_ptr);
513 stdcall;
514procedure png_set_read_fn(png_ptr: png_structp;
515 io_ptr: png_voidp; read_data_fn: png_rw_ptr);
516 stdcall;
517procedure png_set_read_status_fn(png_ptr: png_structp;
518 read_row_fn: png_read_status_ptr);
519 stdcall;
520procedure png_set_read_user_transform_fn(png_ptr: png_structp;
521 read_user_transform_fn: png_user_transform_ptr);
522 stdcall;
Glenn Randers-Pehrson5c6aeb21998-12-29 11:47:59 -0600[diff] [blame]523procedure png_set_rgb_to_gray(png_ptr: png_structp; int: error_action);
524 stdcall;
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]525procedure png_set_sBIT(png_ptr: png_structp; info_ptr: png_infop;
526 sig_bits: png_color_8p);
527 stdcall;
528procedure png_set_sRGB(png_ptr: png_structp; info_ptr: png_infop;
529 intent: int);
530 stdcall;
531procedure png_set_sRGB_gAMA_and_cHRM(png_ptr: png_structp;
532 info_ptr: png_infop; intent: int);
533 stdcall;
534procedure png_set_shift(png_ptr: png_structp; true_bits: png_color_8p);
535 stdcall;
536procedure png_set_sig_bytes(png_ptr: png_structp; num_bytes: int);
537 stdcall;
538procedure png_set_strip_16(png_ptr: png_structp);
539 stdcall;
540procedure png_set_strip_alpha(png_ptr: png_structp);
541 stdcall;
542procedure png_set_swap(png_ptr: png_structp);
543 stdcall;
544procedure png_set_swap_alpha(png_ptr: png_structp);
545 stdcall;
546procedure png_set_tIME(png_ptr: png_structp; info_ptr: png_infop;
547 mod_time: png_timep);
548 stdcall;
549procedure png_set_tRNS(png_ptr: png_structp; info_ptr: png_infop;
550 trans: png_bytep; num_trans: int;
551 trans_values: png_color_16p);
552 stdcall;
Glenn Randers-Pehrson4393a9a1999-09-17 12:27:26 -0500[diff] [blame]553procedure png_set_tRNS_to_alpha(png_ptr: png_structp);
554 stdcall;
Glenn Randers-Pehrson8686fff1998-05-21 09:27:50 -0500[diff] [blame]555procedure png_set_text(png_ptr: png_structp; info_ptr: png_infop;
556 text_ptr: png_textp; num_text: int);
557 stdcall;
558procedure png_set_write_fn(png_ptr: png_structp;
559 io_ptr: png_voidp; write_data_fn: png_rw_ptr;
560 output_flush_fn: png_flush_ptr);
561 stdcall;
562procedure png_set_write_status_fn(png_ptr: png_structp;
563 write_row_fn: png_write_status_ptr);
564 stdcall;
565procedure png_set_write_user_transform_fn(png_ptr: png_structp;
566 write_user_transform_fn: png_user_transform_ptr);
567 stdcall;
568function png_sig_cmp(sig: png_bytep; start, num_to_check: png_size_t):
569 int;
570 stdcall;
571procedure png_start_read_image(png_ptr: png_structp);
572 stdcall;
573procedure png_write_chunk(png_ptr: png_structp;
574 chunk_name, data: png_bytep; length: png_size_t);
575 stdcall;
576procedure png_write_chunk_data(png_ptr: png_structp;
577 data: png_bytep; length: png_size_t);
578 stdcall;
579procedure png_write_chunk_end(png_ptr: png_structp);
580 stdcall;
581procedure png_write_chunk_start(png_ptr: png_structp;
582 chunk_name: png_bytep; length: png_uint_32);
583 stdcall;
584procedure png_write_end(png_ptr: png_structp; info_ptr: png_infop);
585 stdcall;
586procedure png_write_flush(png_ptr: png_structp);
587 stdcall;
588procedure png_write_image(png_ptr: png_structp; image: png_bytepp);
589 stdcall;
590procedure png_write_info(png_ptr: png_structp; info_ptr: png_infop);
591 stdcall;
592procedure png_write_row(png_ptr: png_structp; row: png_bytep);
593 stdcall;
594procedure png_write_rows(png_ptr: png_structp; row: png_bytepp;
595 num_rows: png_uint_32);
596 stdcall;
597
598implementation
599
600const
601 pngDLL = 'png32bd.dll';
602
603procedure png_build_grayscale_palette; external pngDLL;
604function png_check_sig; external pngDLL;
605procedure png_chunk_error; external pngDLL;
606procedure png_chunk_warning; external pngDLL;
607procedure png_convert_from_time_t; external pngDLL;
608function png_convert_to_rfc1123; external pngDLL;
609function png_create_info_struct; external pngDLL;
610function png_create_read_struct; external pngDLL;
611function png_create_write_struct; external pngDLL;
612procedure png_destroy_info_struct; external pngDLL;
613procedure png_destroy_read_struct; external pngDLL;
614procedure png_destroy_write_struct; external pngDLL;
615function png_get_IHDR; external pngDLL;
616function png_get_PLTE; external pngDLL;
617function png_get_bKGD; external pngDLL;
618function png_get_bit_depth; external pngDLL;
619function png_get_cHRM; external pngDLL;
620function png_get_channels; external pngDLL;
621function png_get_color_type; external pngDLL;
622function png_get_compression_type; external pngDLL;
623function png_get_error_ptr; external pngDLL;
624function png_get_filter_type; external pngDLL;
625function png_get_gAMA; external pngDLL;
626function png_get_hIST; external pngDLL;
627function png_get_image_height; external pngDLL;
628function png_get_image_width; external pngDLL;
629function png_get_interlace_type; external pngDLL;
630function png_get_io_ptr; external pngDLL;
631function png_get_oFFs; external pngDLL;
632function png_get_pCAL; external pngDLL;
633function png_get_pHYs; external pngDLL;
634function png_get_pixel_aspect_ratio; external pngDLL;
635function png_get_pixels_per_meter; external pngDLL;
636function png_get_progressive_ptr; external pngDLL;
637function png_get_rowbytes; external pngDLL;
638function png_get_sBIT; external pngDLL;
639function png_get_sRGB; external pngDLL;
640function png_get_signature; external pngDLL;
641function png_get_tIME; external pngDLL;
642function png_get_tRNS; external pngDLL;
643function png_get_text; external pngDLL;
644function png_get_valid; external pngDLL;
645function png_get_x_offset_microns; external pngDLL;
646function png_get_x_offset_pixels; external pngDLL;
647function png_get_x_pixels_per_meter; external pngDLL;
648function png_get_y_offset_microns; external pngDLL;
649function png_get_y_offset_pixels; external pngDLL;
650function png_get_y_pixels_per_meter; external pngDLL;
651procedure png_process_data; external pngDLL;
652procedure png_progressive_combine_row; external pngDLL;
653procedure png_read_end; external pngDLL;
654procedure png_read_image; external pngDLL;
655procedure png_read_info; external pngDLL;
656procedure png_read_row; external pngDLL;
657procedure png_read_rows; external pngDLL;
658procedure png_read_update_info; external pngDLL;
659procedure png_set_IHDR; external pngDLL;
660procedure png_set_PLTE; external pngDLL;
661procedure png_set_bKGD; external pngDLL;
662procedure png_set_background; external pngDLL;
663procedure png_set_bgr; external pngDLL;
664procedure png_set_cHRM; external pngDLL;
665procedure png_set_compression_level; external pngDLL;
666procedure png_set_compression_mem_level; external pngDLL;
667procedure png_set_compression_method; external pngDLL;
668procedure png_set_compression_strategy; external pngDLL;
669procedure png_set_compression_window_bits; external pngDLL;
670procedure png_set_crc_action; external pngDLL;
671procedure png_set_dither; external pngDLL;
672procedure png_set_error_fn; external pngDLL;
673procedure png_set_expand; external pngDLL;
674procedure png_set_filler; external pngDLL;
675procedure png_set_filter; external pngDLL;
676procedure png_set_filter_heuristics; external pngDLL;
677procedure png_set_flush; external pngDLL;
678procedure png_set_gAMA; external pngDLL;
679procedure png_set_gamma; external pngDLL;
680procedure png_set_gray_to_rgb; external pngDLL;
681procedure png_set_hIST; external pngDLL;
682function png_set_interlace_handling; external pngDLL;
683procedure png_set_invert_alpha; external pngDLL;
684procedure png_set_invert_mono; external pngDLL;
685procedure png_set_oFFs; external pngDLL;
686procedure png_set_pCAL; external pngDLL;
687procedure png_set_pHYs; external pngDLL;
688procedure png_set_packing; external pngDLL;
689procedure png_set_packswap; external pngDLL;
690procedure png_set_progressive_read_fn; external pngDLL;
691procedure png_set_read_fn; external pngDLL;
692procedure png_set_read_status_fn; external pngDLL;
693procedure png_set_read_user_transform_fn; external pngDLL;
694procedure png_set_sBIT; external pngDLL;
695procedure png_set_sRGB; external pngDLL;
696procedure png_set_sRGB_gAMA_and_cHRM; external pngDLL;
697procedure png_set_shift; external pngDLL;
698procedure png_set_sig_bytes; external pngDLL;
699procedure png_set_strip_16; external pngDLL;
700procedure png_set_strip_alpha; external pngDLL;
701procedure png_set_swap; external pngDLL;
702procedure png_set_swap_alpha; external pngDLL;
703procedure png_set_tIME; external pngDLL;
704procedure png_set_tRNS; external pngDLL;
705procedure png_set_text; external pngDLL;
706procedure png_set_write_fn; external pngDLL;
707procedure png_set_write_status_fn; external pngDLL;
708procedure png_set_write_user_transform_fn; external pngDLL;
709function png_sig_cmp; external pngDLL;
710procedure png_start_read_image; external pngDLL;
711procedure png_write_chunk; external pngDLL;
712procedure png_write_chunk_data; external pngDLL;
713procedure png_write_chunk_end; external pngDLL;
714procedure png_write_chunk_start; external pngDLL;
715procedure png_write_end; external pngDLL;
716procedure png_write_flush; external pngDLL;
717procedure png_write_image; external pngDLL;
718procedure png_write_info; external pngDLL;
719procedure png_write_row; external pngDLL;
720procedure png_write_rows; external pngDLL;
721
722end.