Annotation of parser3/src/classes/image.C, revision 1.179
1.1 paf 1: /** @file
2: Parser: @b image parser class.
3:
1.179 ! moko 4: Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com)
1.66 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.73 paf 6: */
1.1 paf 7:
1.31 parser 8: /*
9: jpegsize: gets the width and height (in pixels) of a jpeg file
10: Andrew Tong, werdna@ugcs.caltech.edu February 14, 1995
11: modified slightly by alex@ed.ac.uk
12: and further still by rjray@uswest.com
13: optimization and general re-write from tmetro@vl.com
14: from perl by paf@design.ru
1.1 paf 15: */
16:
17: #include "pa_config_includes.h"
1.139 moko 18: #include "gif.h"
1.1 paf 19:
1.91 paf 20: #include "pa_vmethod_frame.h"
1.1 paf 21: #include "pa_common.h"
22: #include "pa_request.h"
23: #include "pa_vfile.h"
24: #include "pa_vimage.h"
1.89 paf 25: #include "pa_vdate.h"
1.91 paf 26: #include "pa_table.h"
1.163 moko 27: #include "pa_charsets.h"
1.1 paf 28:
1.179 ! moko 29: volatile const char * IDENT_IMAGE_C="$Id: image.C,v 1.178 2020/12/07 23:18:40 moko Exp $";
1.139 moko 30:
1.125 misha 31: // defines
32:
1.126 misha 33: static const String spacebar_width_name("space");
34: static const String monospace_width_name("width");
35: static const String letter_spacing_name("spacing");
1.125 misha 36:
1.22 paf 37: // class
38:
1.91 paf 39: class MImage: public Methoded {
1.22 paf 40: public: // VStateless_class
1.130 misha 41: Value* create_new_value(Pool&) { return new VImage(); }
1.22 paf 42:
43: public:
1.91 paf 44: MImage();
1.22 paf 45: };
1.1 paf 46:
1.91 paf 47: // globals
48:
1.151 moko 49: DECLARE_CLASS_VAR(image, new MImage);
1.91 paf 50:
1.1 paf 51: // helpers
52:
1.118 misha 53: #define EXIF_TAG(tag, name) put(tag, #name);
54:
1.91 paf 55: /// value of exif tag -> it's value
56: class EXIF_tag_value2name: public Hash<int, const char*> {
57: public:
58: EXIF_tag_value2name() {
59: // image JPEG Exif
60: // Tags used by IFD0 (main image)
61: EXIF_TAG(0x010e, ImageDescription);
62: EXIF_TAG(0x010f, Make);
63: EXIF_TAG(0x0110, Model);
64: EXIF_TAG(0x0112, Orientation);
65: EXIF_TAG(0x011a, XResolution);
66: EXIF_TAG(0x011b, YResolution);
67: EXIF_TAG(0x0128, ResolutionUnit);
68: EXIF_TAG(0x0131, Software);
69: EXIF_TAG(0x0132, DateTime);
70: EXIF_TAG(0x013e, WhitePoint);
71: EXIF_TAG(0x013f, PrimaryChromaticities);
72: EXIF_TAG(0x0211, YCbCrCoefficients);
73: EXIF_TAG(0x0213, YCbCrPositioning);
74: EXIF_TAG(0x0214, ReferenceBlackWhite);
75: EXIF_TAG(0x8298, Copyright);
76: EXIF_TAG(0x8769, ExifOffset);
77: // Tags used by Exif SubIFD
78: EXIF_TAG(0x829a, ExposureTime);
79: EXIF_TAG(0x829d, FNumber);
80: EXIF_TAG(0x8822, ExposureProgram);
81: EXIF_TAG(0x8827, ISOSpeedRatings);
82: EXIF_TAG(0x9000, ExifVersion);
83: EXIF_TAG(0x9003, DateTimeOriginal);
84: EXIF_TAG(0x9004, DateTimeDigitized);
85: EXIF_TAG(0x9101, ComponentsConfiguration);
86: EXIF_TAG(0x9102, CompressedBitsPerPixel);
87: EXIF_TAG(0x9201, ShutterSpeedValue);
88: EXIF_TAG(0x9202, ApertureValue);
89: EXIF_TAG(0x9203, BrightnessValue);
90: EXIF_TAG(0x9204, ExposureBiasValue);
91: EXIF_TAG(0x9205, MaxApertureValue);
92: EXIF_TAG(0x9206, SubjectDistance);
93: EXIF_TAG(0x9207, MeteringMode);
94: EXIF_TAG(0x9208, LightSource);
95: EXIF_TAG(0x9209, Flash);
96: EXIF_TAG(0x920a, FocalLength);
97: EXIF_TAG(0x927c, MakerNote);
98: EXIF_TAG(0x9286, UserComment);
99: EXIF_TAG(0x9290, SubsecTime);
100: EXIF_TAG(0x9291, SubsecTimeOriginal);
101: EXIF_TAG(0x9292, SubsecTimeDigitized);
102: EXIF_TAG(0xa000, FlashPixVersion);
103: EXIF_TAG(0xa001, ColorSpace);
104: EXIF_TAG(0xa002, ExifImageWidth);
105: EXIF_TAG(0xa003, ExifImageHeight);
106: EXIF_TAG(0xa004, RelatedSoundFile);
107: EXIF_TAG(0xa005, ExifInteroperabilityOffset);
108: EXIF_TAG(0xa20e, FocalPlaneXResolution);
109: EXIF_TAG(0xa20f, FocalPlaneYResolution);
110: EXIF_TAG(0xa210, FocalPlaneResolutionUnit);
111: EXIF_TAG(0xa215, ExposureIndex);
112: EXIF_TAG(0xa217, SensingMethod);
113: EXIF_TAG(0xa300, FileSource);
114: EXIF_TAG(0xa301, SceneType);
115: EXIF_TAG(0xa302, CFAPattern);
116: // Misc Tags
117: EXIF_TAG(0x00fe, NewSubfileType);
118: EXIF_TAG(0x00ff, SubfileType);
119: EXIF_TAG(0x012d, TransferFunction);
120: EXIF_TAG(0x013b, Artist);
121: EXIF_TAG(0x013d, Predictor);
122: EXIF_TAG(0x0142, TileWidth);
123: EXIF_TAG(0x0143, TileLength);
124: EXIF_TAG(0x0144, TileOffsets);
125: EXIF_TAG(0x0145, TileByteCounts);
126: EXIF_TAG(0x014a, SubIFDs);
127: EXIF_TAG(0x015b, JPEGTables);
128: EXIF_TAG(0x828d, CFARepeatPatternDim);
129: EXIF_TAG(0x828e, CFAPattern);
130: EXIF_TAG(0x828f, BatteryLevel);
131: EXIF_TAG(0x83bb, IPTC/NAA);
132: EXIF_TAG(0x8773, InterColorProfile);
133: EXIF_TAG(0x8824, SpectralSensitivity);
1.118 misha 134: //EXIF_TAG(0x8825, GPSInfo);
1.91 paf 135: EXIF_TAG(0x8828, OECF);
136: EXIF_TAG(0x8829, Interlace);
137: EXIF_TAG(0x882a, TimeZoneOffset);
138: EXIF_TAG(0x882b, SelfTimerMode);
139: EXIF_TAG(0x920b, FlashEnergy);
140: EXIF_TAG(0x920c, SpatialFrequencyResponse);
141: EXIF_TAG(0x920d, Noise);
142: EXIF_TAG(0x9211, ImageNumber);
143: EXIF_TAG(0x9212, SecurityClassification);
144: EXIF_TAG(0x9213, ImageHistory);
145: EXIF_TAG(0x9214, SubjectLocation);
146: EXIF_TAG(0x9215, ExposureIndex);
147: EXIF_TAG(0x9216, TIFF/EPStandardID);
148: EXIF_TAG(0xa20b, FlashEnergy);
149: EXIF_TAG(0xa20c, SpatialFrequencyResponse);
150: EXIF_TAG(0xa214, SubjectLocation);
1.118 misha 151:
152: // additional things added by misha@
153: EXIF_TAG(0x0100, ImageWidth);
154: EXIF_TAG(0x0101, ImageLength);
155: EXIF_TAG(0x0102, BitsPerSample);
156: EXIF_TAG(0x0103, Compression);
157: EXIF_TAG(0x0106, PhotometricInterpretation);
158: EXIF_TAG(0x010a, FillOrder);
159: EXIF_TAG(0x010d, DocumentName);
160: EXIF_TAG(0x0111, StripOffsets);
161: EXIF_TAG(0x0115, SamplesPerPixel);
162: EXIF_TAG(0x0116, RowsPerStrip);
163: EXIF_TAG(0x0117, StripByteCounts);
164: EXIF_TAG(0x011c, PlanarConfiguration);
165: EXIF_TAG(0x0156, TransferRange);
166: EXIF_TAG(0x0200, JPEGProc);
167: EXIF_TAG(0x0201, JPEGInterchangeFormat);
168: EXIF_TAG(0x0202, JPEGInterchangeFormatLength);
169: EXIF_TAG(0x0212, YCbCrSubSampling);
170: EXIF_TAG(0xa401, CustomRendered);
171: EXIF_TAG(0xa402, ExposureMode);
172: EXIF_TAG(0xa403, WhiteBalance);
173: EXIF_TAG(0xa404, DigitalZoomRatio);
174: EXIF_TAG(0xa405, FocalLengthIn35mmFilm);
175: EXIF_TAG(0xa406, SceneCaptureType);
176: EXIF_TAG(0xa407, GainControl);
177: EXIF_TAG(0xa408, Contrast);
178: EXIF_TAG(0xa409, Saturation);
179: EXIF_TAG(0xa40a, Sharpness);
180: EXIF_TAG(0xa40b, DeviceSettingDescription);
181: EXIF_TAG(0xa40c, SubjectDistanceRange);
182: EXIF_TAG(0xa420, ImageUniqueID);
1.149 moko 183:
184: // other tags
185: EXIF_TAG(0xa430, CameraOwnerName);
186: EXIF_TAG(0xa431, BodySerialNumber);
187: EXIF_TAG(0xa432, LensSpecification);
188: EXIF_TAG(0xa433, LensManufactor);
189: EXIF_TAG(0xa434, LensModel);
190: EXIF_TAG(0xa435, LensSerialNumber);
1.91 paf 191: }
192: } exif_tag_value2name;
193:
1.118 misha 194: class EXIF_gps_tag_value2name: public Hash<int, const char*> {
195: public:
196: EXIF_gps_tag_value2name() {
197: EXIF_TAG(0x0, GPSVersionID);
198: EXIF_TAG(0x1, GPSLatitudeRef);
199: EXIF_TAG(0x2, GPSLatitude);
200: EXIF_TAG(0x3, GPSLongitudeRef);
201: EXIF_TAG(0x4, GPSLongitude);
202: EXIF_TAG(0x5, GPSAltitudeRef);
203: EXIF_TAG(0x6, GPSAltitude);
204: EXIF_TAG(0x7, GPSTimeStamp);
205: EXIF_TAG(0x8, GPSSatellites);
206: EXIF_TAG(0x9, GPSStatus);
207: EXIF_TAG(0xA, GPSMeasureMode);
208: EXIF_TAG(0xB, GPSDOP);
209: EXIF_TAG(0xC, GPSSpeedRef);
210: EXIF_TAG(0xD, GPSSpeed);
211: EXIF_TAG(0xE, GPSTrackRef);
212: EXIF_TAG(0xF, GPSTrack);
213: EXIF_TAG(0x10, GPSImgDirectionRef);
214: EXIF_TAG(0x11, GPSImgDirection);
215: EXIF_TAG(0x12, GPSMapDatum);
216: EXIF_TAG(0x13, GPSDestLatitudeRef);
217: EXIF_TAG(0x14, GPSDestLatitude);
218: EXIF_TAG(0x15, GPSDestLongitudeRef);
219: EXIF_TAG(0x16, GPSDestLongitude);
220: EXIF_TAG(0x17, GPSDestBearingRef);
221: EXIF_TAG(0x18, GPSDestBearing);
222: EXIF_TAG(0x19, GPSDestDistanceRef);
223: EXIF_TAG(0x1A, GPSDestDistance);
224: EXIF_TAG(0x1B, GPSProcessingMethod);
225: EXIF_TAG(0x1C, GPSAreaInformation);
226: EXIF_TAG(0x1D, GPSDateStamp);
227: EXIF_TAG(0x1E, GPSDifferential);
228: }
229: } exif_gps_tag_value2name;
230:
1.170 moko 231:
1.169 moko 232: ///*********************************************** support functions
1.91 paf 233:
1.1 paf 234: class Measure_reader {
235: public:
1.91 paf 236: virtual size_t read(const char* &buf, size_t limit)=0;
1.174 moko 237: virtual void seek(uint64_t value)=0;
238: virtual uint64_t tell()=0;
239: virtual uint64_t length()=0;
1.77 paf 240: };
1.1 paf 241:
1.77 paf 242: class Measure_file_reader: public Measure_reader {
1.152 moko 243: const String& file_name;
1.91 paf 244: int f;
245:
1.77 paf 246: public:
1.152 moko 247: Measure_file_reader(int af, const String& afile_name):
248: file_name(afile_name), f(af) {
1.1 paf 249: }
250:
1.91 paf 251: override size_t read(const char* &abuf, size_t limit) {
1.77 paf 252: if(limit==0)
1.1 paf 253: return 0;
1.77 paf 254:
1.91 paf 255: char* lbuf=new(PointerFreeGC) char[limit];
1.143 moko 256: ssize_t read_size=::read(f, lbuf, limit); abuf=lbuf;
257: if(read_size<0)
258: throw Exception(0, &file_name, "measure read failed: %s (%d)", strerror(errno), errno);
1.1 paf 259: return read_size;
260: }
261:
1.174 moko 262: override void seek(uint64_t value) {
263: if(pa_lseek(f, value, SEEK_SET)<0)
264: throw Exception(IMAGE_FORMAT, &file_name, "seek to %.15g failed: %s (%d)", (double)value, strerror(errno), errno);
1.77 paf 265: }
266:
1.174 moko 267: override uint64_t tell() { return pa_lseek(f, 0, SEEK_CUR); }
268:
269: override uint64_t length() { return pa_lseek(f, 0, SEEK_END); }
1.79 paf 270:
1.77 paf 271: };
272:
273: class Measure_buf_reader: public Measure_reader {
1.91 paf 274:
275: const char* buf; size_t size;
276: const String& file_name;
277:
278: size_t offset;
279:
1.77 paf 280: public:
1.91 paf 281: Measure_buf_reader(const char* abuf, size_t asize, const String& afile_name):
1.77 paf 282: buf(abuf), size(asize), file_name(afile_name), offset(0) {
283: }
284:
1.91 paf 285: override size_t read(const char* &abuf, size_t limit) {
1.77 paf 286: size_t to_read=min(limit, size-offset);
1.91 paf 287: abuf=buf+offset;
1.77 paf 288: offset+=to_read;
289: return to_read;
290: }
291:
1.174 moko 292: override void seek(uint64_t value) {
293: if(value>(uint64_t)size)
294: throw Exception(IMAGE_FORMAT, &file_name, "seek to %.15g failed: out of buffer (%.15g)", value, size);
295: offset=(size_t)value;
1.77 paf 296: }
297:
1.174 moko 298: override uint64_t tell() { return offset; }
299:
300: override uint64_t length() { return size; }
1.79 paf 301:
1.1 paf 302: };
1.77 paf 303:
1.1 paf 304:
1.169 moko 305: struct Measure_info {
306: ushort width;
307: ushort height;
308: Value** exif;
309: Value** xmp;
310: Charset* xmp_charset;
1.72 paf 311: };
312:
1.164 moko 313:
1.169 moko 314: inline ushort x_endian_to_ushort(uchar b0, uchar b1) {
315: return (ushort)((b1<<8) + b0);
316: }
317:
318: inline uint x_endian_to_uint(uchar b0, uchar b1, uchar b2, uchar b3) {
319: return (uint)(((((b3<<8) + b2)<<8)+b1)<<8)+b0;
320: }
321:
322: inline ushort endian_to_ushort(bool is_big, const uchar *b/* [2] */) {
323: return is_big ? x_endian_to_ushort(b[1], b[0]) : x_endian_to_ushort(b[0], b[1]);
324: }
325:
326: inline uint endian_to_uint(bool is_big, const uchar *b /* [4] */) {
327: return is_big ? x_endian_to_uint(b[3], b[2], b[1], b[0]) : x_endian_to_uint(b[0], b[1], b[2], b[3]);
328: }
1.1 paf 329:
1.170 moko 330:
1.169 moko 331: ///*********************************************** JPEG
1.170 moko 332:
1.31 parser 333: struct JPG_Segment_head {
1.80 paf 334: uchar marker;
335: uchar code;
336: uchar length[2];
1.1 paf 337: };
1.21 paf 338: /// JPEG frame header
1.31 parser 339: struct JPG_Size_segment_body {
1.164 moko 340: char data; //< data precision of bits/sample
341: uchar height[2]; //< image height
342: uchar width[2]; //< image width
343: char numComponents; //< number of color components
1.1 paf 344: };
345:
1.80 paf 346: /// JPEG Exif TIFF Header
347: struct JPG_Exif_TIFF_header {
1.165 moko 348: char byte_align_identifier[2];
349: uchar signature[2]; // always 000A [or 0A00]
1.80 paf 350: uchar first_IFD_offset[4]; // Usually the first IFD starts immediately next to TIFF header, so this offset has value '0x00000008'.
351: };
352:
353: // JPEG Exif IFD start
1.91 paf 354: struct JPG_Exif_IFD_begin {
1.80 paf 355: uchar directory_entry_count[2]; // the number of directory entry contains in this IFD
356: };
357:
358: // TTTT ffff NNNNNNNN DDDDDDDD
359: struct JPG_Exif_IFD_entry {
360: uchar tag[2]; // Tag number, this shows a kind of data
361: uchar format[2]; // data format
362: uchar components_count[4]; // number of components
363: uchar value_or_offset_to_it[4]; // data value or offset to data value
364: };
365:
366: #define JPG_IFD_TAG_EXIF_OFFSET 0x8769
367:
1.118 misha 368: #define JPG_IFD_TAG_EXIF_GPS_OFFSET 0x8825
369:
1.89 paf 370: #define JPEG_EXIF_DATE_CHARS 20
371:
1.155 moko 372: static Value* parse_IFD_entry_formatted_one_value(bool is_big, ushort format, size_t component_size, const uchar *value) {
1.80 paf 373: switch(format) {
374: case 1: // unsigned byte
1.91 paf 375: return new VInt((uchar)value[0]);
1.80 paf 376: case 3: // unsigned short
1.91 paf 377: return new VInt(endian_to_ushort(is_big, value));
1.80 paf 378: case 4: // unsigned long
379: // 'double' because parser's Int is signed
1.91 paf 380: return new VDouble(endian_to_uint(is_big, value));
1.80 paf 381: case 5: // unsigned rational
382: {
383: uint numerator=endian_to_uint(is_big, value); value+=component_size/2;
384: uint denominator=endian_to_uint(is_big, value);
385: if(!denominator)
386: return 0;
1.91 paf 387: return new VDouble(((double)numerator)/denominator);
1.80 paf 388: }
389: case 6: // signed byte
1.91 paf 390: return new VInt((signed char)value[0]);
1.80 paf 391: case 8: // signed short
1.91 paf 392: return new VInt((signed short)endian_to_ushort(is_big, value));
1.80 paf 393: case 9: // signed long
1.91 paf 394: return new VInt((signed int)endian_to_uint(is_big, value));
1.80 paf 395: case 10: // signed rational
396: {
397: signed int numerator=(signed int)endian_to_uint(is_big, value); value+=component_size/2;
398: uint denominator=endian_to_uint(is_big, value);
399: if(!denominator)
400: return 0;
1.91 paf 401: return new VDouble(numerator/denominator);
1.80 paf 402: }
403: /*
404: case 11: // single float
1.120 misha 405: @todo
1.80 paf 406: case 12: // double float
1.120 misha 407: @todo
1.80 paf 408: */
409: };
410:
411: return 0;
412: }
413:
1.89 paf 414: // date.C
1.147 moko 415: tm cstr_to_time_t(char *, const char **);
1.89 paf 416:
1.155 moko 417: static Value* parse_IFD_entry_formatted_value(bool is_big, ushort format, size_t component_size, uint components_count, const uchar *value) {
1.80 paf 418: if(format==2) { // ascii string, exception: the only type with varying size
1.91 paf 419: const char* cstr=(const char* )value;
420: size_t length=components_count;
1.89 paf 421: // Data format is "YYYY:MM:DD HH:MM:SS"+0x00, total 20bytes
1.155 moko 422: if(length==JPEG_EXIF_DATE_CHARS && isdigit((unsigned char)cstr[0]) && cstr[length-1]==0) {
423: char cstr_writable[JPEG_EXIF_DATE_CHARS];
1.89 paf 424: strcpy(cstr_writable, cstr);
425:
1.106 paf 426: try {
1.147 moko 427: tm tmIn=cstr_to_time_t(cstr_writable, 0);
1.146 moko 428: return new VDate(tmIn);
1.106 paf 429: }
430: catch(...) { /*ignore bad date times*/ }
1.89 paf 431: }
432:
1.123 misha 433: return new VString(*new String(cstr, String::L_TAINTED));
1.80 paf 434: }
435:
436: if(components_count==1)
1.91 paf 437: return parse_IFD_entry_formatted_one_value(is_big, format, component_size, value);
1.80 paf 438:
1.91 paf 439: VHash* result=new VHash;
440: HashStringValue& hash=result->hash();
1.80 paf 441: for(uint i=0; i<components_count; i++, value+=component_size) {
1.91 paf 442: hash.put(
1.93 paf 443: String::Body::Format(i),
1.91 paf 444: parse_IFD_entry_formatted_one_value(is_big, format, component_size, value));
1.80 paf 445: }
446:
1.91 paf 447: return result;
1.80 paf 448: }
449:
1.176 moko 450: static Value* parse_IFD_entry_value(bool is_big, Measure_reader& reader, uint64_t tiff_base, JPG_Exif_IFD_entry& entry) {
1.80 paf 451: size_t format2component_size[]={
452: 0, // undefined
453: 1, // unsigned byte
454: 1, // ascii string
455: 2, // unsigned short
456: 4, // unsigned long
457: 8, // unsigned rational
458: 1, // signed byte
459: 0, // undefined
460: 2, // signed short
461: 4, // signed long
462: 8, // signed rational
463: /*
464: 4, // single float
465: 8, // double float
466: */
467: };
468:
469: ushort format=endian_to_ushort(is_big, entry.format);
470: if(format>=sizeof(format2component_size)/sizeof(format2component_size[0]))
471: return 0; // format out of range, ignoring
472:
473: size_t component_size=format2component_size[format];
474: if(component_size==0)
475: return 0; // undefined format
476:
477: // You can get the total data byte length by multiplies
478: // a 'bytes/components' value (see above chart) by number of components stored 'NNNNNNNN' area
479: uint components_count=endian_to_uint(is_big, entry.components_count);
1.121 misha 480: uint value_size=component_size*components_count;
1.80 paf 481: // If its size is over 4bytes, 'DDDDDDDD' contains the offset to data stored address
1.91 paf 482: Value* result;
1.80 paf 483:
484: if(value_size<=4)
1.155 moko 485: result=parse_IFD_entry_formatted_value(is_big, format, component_size, components_count, entry.value_or_offset_to_it);
1.80 paf 486: else {
1.174 moko 487: uint64_t remembered=reader.tell();
1.80 paf 488: {
1.174 moko 489: reader.seek(tiff_base+endian_to_uint(is_big, entry.value_or_offset_to_it));
1.91 paf 490: const char* value;
1.156 moko 491: if(reader.read(value, value_size)<value_size)
1.80 paf 492: return 0;
1.155 moko 493: result=parse_IFD_entry_formatted_value(is_big, format, component_size, components_count, (const uchar*)value);
1.80 paf 494: }
1.174 moko 495: reader.seek(remembered);
1.80 paf 496: }
497:
498: return result;
499: }
500:
1.176 moko 501: static void parse_IFD(HashStringValue& hash, bool is_big, Measure_reader& reader, uint64_t tiff_base, bool gps=false);
1.91 paf 502:
1.176 moko 503: static void parse_IFD_entry(HashStringValue& hash, bool is_big, Measure_reader& reader, uint64_t tiff_base, JPG_Exif_IFD_entry& entry, bool gps=false) {
1.80 paf 504: ushort tag=endian_to_ushort(is_big, entry.tag);
1.118 misha 505:
506: if(tag==JPG_IFD_TAG_EXIF_OFFSET || tag==JPG_IFD_TAG_EXIF_GPS_OFFSET){
1.174 moko 507: uint64_t remembered=reader.tell();
1.80 paf 508: {
1.174 moko 509: reader.seek(tiff_base+endian_to_uint(is_big, entry.value_or_offset_to_it));
1.118 misha 510: parse_IFD(hash, is_big, reader, tiff_base, (tag==JPG_IFD_TAG_EXIF_GPS_OFFSET)?true:gps);
1.80 paf 511: }
1.174 moko 512: reader.seek(remembered);
1.80 paf 513: return;
514: }
1.118 misha 515:
1.91 paf 516: if(Value* value=parse_IFD_entry_value(is_big, reader, tiff_base, entry)) {
1.118 misha 517: if(const char* name=(gps)?exif_gps_tag_value2name.get(tag):exif_tag_value2name.get(tag))
1.148 moko 518: hash.put(name, value);
1.80 paf 519: else
1.93 paf 520: hash.put(String::Body::Format(tag), value);
1.80 paf 521: }
1.1 paf 522: }
523:
1.176 moko 524: static void parse_IFD(HashStringValue& hash, bool is_big, Measure_reader& reader, uint64_t tiff_base, bool gps) {
1.91 paf 525: const char* buf;
526: if(reader.read(buf, sizeof(JPG_Exif_IFD_begin))<sizeof(JPG_Exif_IFD_begin))
1.80 paf 527: return;
1.91 paf 528: JPG_Exif_IFD_begin *start=(JPG_Exif_IFD_begin *)buf;
1.80 paf 529:
530: ushort directory_entry_count=endian_to_ushort(is_big, start->directory_entry_count);
531: for(int i=0; i<directory_entry_count; i++) {
532: if(reader.read(buf, sizeof(JPG_Exif_IFD_entry))<sizeof(JPG_Exif_IFD_entry))
533: return;
534:
1.118 misha 535: parse_IFD_entry(hash, is_big, reader, tiff_base, *(JPG_Exif_IFD_entry *)buf, gps);
1.80 paf 536: }
537: // then goes: LLLLLLLL Offset to next IFD [not going there]
538: }
539:
1.162 moko 540: static Value* parse_exif(Measure_reader& reader) {
1.91 paf 541: const char* buf;
1.80 paf 542:
1.175 moko 543: uint64_t tiff_base=reader.tell();
1.80 paf 544: if(reader.read(buf, sizeof(JPG_Exif_TIFF_header))<sizeof(JPG_Exif_TIFF_header))
545: return 0;
546:
547: JPG_Exif_TIFF_header *head=(JPG_Exif_TIFF_header *)buf;
548: bool is_big=head->byte_align_identifier[0]=='M'; // [M]otorola vs [I]ntel
549:
550: uint first_IFD_offset=endian_to_uint(is_big, head->first_IFD_offset);
1.174 moko 551: reader.seek(tiff_base+first_IFD_offset);
1.80 paf 552:
1.91 paf 553: VHash* vhash=new VHash;
1.80 paf 554:
555: // IFD
1.91 paf 556: parse_IFD(vhash->hash(), is_big, reader, tiff_base);
1.80 paf 557:
1.91 paf 558: return vhash;
1.80 paf 559: }
560:
1.163 moko 561: static Value* parse_xmp(Measure_reader& reader, ushort xmp_length, Measure_info &info) {
1.162 moko 562: const char* buf;
563: if(reader.read(buf, xmp_length)<xmp_length)
564: return 0;
1.163 moko 565:
566: String::C xmp = Charset::transcode(String::C(pa_strdup(buf, xmp_length), xmp_length), *info.xmp_charset, pa_thread_request().charsets.source());
567: return new VString(*new String(xmp, String::L_TAINTED));
1.162 moko 568: }
569:
570: static void measure_jpeg(const String& origin_string, Measure_reader& reader, Measure_info &info) {
1.2 paf 571: // JFIF format markers
1.80 paf 572: const uchar MARKER=0xFF;
573: const uchar CODE_SIZE_A=0xC0;
574: const uchar CODE_SIZE_B=0xC1;
575: const uchar CODE_SIZE_C=0xC2;
576: const uchar CODE_SIZE_D=0xC3;
1.162 moko 577: const uchar CODE_APP1=0xE1;
1.2 paf 578:
1.91 paf 579: const char* buf;
1.18 paf 580: const size_t prefix_size=2;
1.31 parser 581: if(reader.read(buf, prefix_size)<prefix_size)
1.155 moko 582: throw Exception(IMAGE_FORMAT, &origin_string, "not JPEG file - too small");
1.80 paf 583: uchar *signature=(uchar *)buf;
1.1 paf 584:
1.31 parser 585: if(!(signature[0]==0xFF && signature[1]==0xD8))
1.155 moko 586: throw Exception(IMAGE_FORMAT, &origin_string, "not JPEG file - wrong signature");
1.31 parser 587:
588: while(true) {
1.177 moko 589: uint64_t segment_base=reader.tell()+2/*marker,code*/;
1.31 parser 590: if(reader.read(buf, sizeof(JPG_Segment_head))<sizeof(JPG_Segment_head))
1.79 paf 591: break;
1.31 parser 592: JPG_Segment_head *head=(JPG_Segment_head *)buf;
593:
1.162 moko 594: // Verify that it's a valid segment.
1.31 parser 595: if(head->marker!=MARKER)
1.155 moko 596: throw Exception(IMAGE_FORMAT, &origin_string, "not JPEG file - marker not found");
1.79 paf 597:
1.162 moko 598: ushort segment_length=endian_to_ushort(true, head->length);
599:
1.79 paf 600: switch(head->code) {
1.162 moko 601: // http://dev.exiv2.org/projects/exiv2/wiki/The_Metadata_in_JPEG_files
602: case CODE_APP1:
603: {
604: const size_t EXIF_SIG_LEN=6; // Exif\0\0
605: const size_t XMP_SIG_LEN=29; // http://ns.adobe.com/xap/1.0/\0
606:
607: if(segment_length<EXIF_SIG_LEN+2 || reader.read(buf, EXIF_SIG_LEN)<EXIF_SIG_LEN)
608: break;
609: if(memcmp(buf, "Exif\0\0", EXIF_SIG_LEN)==0){
610: if(info.exif && !*info.exif) // backward compatibility: using first segment
611: *info.exif=parse_exif(reader);
612: break;
613: }
614:
615: if(memcmp(buf, "http:/", EXIF_SIG_LEN))
616: break;
617: if(segment_length<XMP_SIG_LEN+2 || reader.read(buf, XMP_SIG_LEN-EXIF_SIG_LEN)<XMP_SIG_LEN-EXIF_SIG_LEN)
618: break;
619: if(memcmp(buf, "/ns.adobe.com/xap/1.0/\0", XMP_SIG_LEN-EXIF_SIG_LEN)==0){
620: if(info.xmp && !*info.xmp) // backward compatibility: using first segment
1.163 moko 621: *info.xmp=parse_xmp(reader, segment_length - XMP_SIG_LEN - 2 /* segment_length */, info);
1.162 moko 622: }
623:
624: }
1.1 paf 625: break;
1.31 parser 626:
1.79 paf 627: case CODE_SIZE_A:
628: case CODE_SIZE_B:
629: case CODE_SIZE_C:
630: case CODE_SIZE_D:
631: {
632: // Segments that contain size info
633: if(reader.read(buf, sizeof(JPG_Size_segment_body))<sizeof(JPG_Size_segment_body))
1.155 moko 634: throw Exception(IMAGE_FORMAT, &origin_string, "not JPEG file - can not fully read Size segment");
1.79 paf 635: JPG_Size_segment_body *body=(JPG_Size_segment_body *)buf;
636:
1.162 moko 637: info.width=endian_to_ushort(true, body->width);
638: info.height=endian_to_ushort(true, body->height);
639: }
1.80 paf 640: return;
1.79 paf 641: };
642:
1.174 moko 643: reader.seek(segment_base + segment_length);
1.31 parser 644: }
645:
1.155 moko 646: throw Exception(IMAGE_FORMAT, &origin_string, "broken JPEG file - size frame not found");
1.1 paf 647: }
648:
1.169 moko 649: ///*********************************************** TIFF
650:
1.165 moko 651: static bool parse_tiff_IFD(bool is_big, Measure_reader& reader, Measure_info &info) {
652: const char* buf;
653: if(reader.read(buf, sizeof(JPG_Exif_IFD_begin))<sizeof(JPG_Exif_IFD_begin))
654: return false;
655: JPG_Exif_IFD_begin *start=(JPG_Exif_IFD_begin *)buf;
656:
657: ushort directory_entry_count=endian_to_ushort(is_big, start->directory_entry_count);
658: for(int i=0; i<directory_entry_count; i++) {
659: if(reader.read(buf, sizeof(JPG_Exif_IFD_entry))<sizeof(JPG_Exif_IFD_entry))
660: return false;
661:
662: JPG_Exif_IFD_entry *entry=(JPG_Exif_IFD_entry *)buf;
663: ushort entry_tag=endian_to_ushort(is_big, entry->tag);
664:
665: if(entry_tag == 256 || entry_tag == 257){
666: ushort entry_format=endian_to_ushort(is_big, entry->format);
667: if(entry_format != 3 && entry_format != 4 || endian_to_uint(is_big, entry->components_count) != 1)
668: return false;
669: uint value = (entry_format == 3) ? endian_to_ushort(is_big, entry->value_or_offset_to_it) : endian_to_uint(is_big, entry->value_or_offset_to_it);
1.178 moko 670: (entry_tag == 256) ? info.width=(short)value : info.height=(short)value;
1.165 moko 671: if(info.width && info.height)
672: return true;
673: }
674: }
675:
676: return false;
677: // then goes: LLLLLLLL Offset to next IFD [not going there]
678: }
679:
680: static void measure_tiff(const String& origin_string, Measure_reader& reader, Measure_info &info) {
681: const char* buf;
682:
683: if(reader.read(buf, sizeof(JPG_Exif_TIFF_header))<sizeof(JPG_Exif_TIFF_header))
684: throw Exception(IMAGE_FORMAT, &origin_string, "not TIFF file - too small");
685:
686: JPG_Exif_TIFF_header *head=(JPG_Exif_TIFF_header *)buf;
687:
688: if(strncmp(head->byte_align_identifier, "II", 2)!=0 && strncmp(head->byte_align_identifier, "MM", 2)!=0)
689: throw Exception(IMAGE_FORMAT, &origin_string, "not TIFF file - wrong signature");
690:
691: bool is_big=head->byte_align_identifier[0]=='M'; // [M]otorola vs [I]ntel
692:
693: if(endian_to_ushort(is_big, head->signature) != 42)
694: throw Exception(IMAGE_FORMAT, &origin_string, "not TIFF file - wrong signature");
695:
1.174 moko 696: reader.seek(endian_to_uint(is_big, head->first_IFD_offset));
1.165 moko 697: if(!parse_tiff_IFD(is_big, reader, info))
698: throw Exception(IMAGE_FORMAT, &origin_string, "broken TIFF file - size field entry not found");
699: }
700:
1.169 moko 701:
702: ///*********************************************** GIF
703:
704: struct GIF_Header {
705: char signature[3]; // 'GIF'
706: char version[3];
707: uchar width[2];
708: uchar height[2];
709: char dif;
710: char fonColor;
711: char nulls;
712: };
713:
1.164 moko 714: static void measure_gif(const String& origin_string, Measure_reader& reader, ushort& width, ushort& height) {
715:
716: const char* buf;
717: const size_t head_size=sizeof(GIF_Header);
718: if(reader.read(buf, head_size)<head_size)
719: throw Exception(IMAGE_FORMAT, &origin_string, "not GIF file - too small");
720: GIF_Header *head=(GIF_Header *)buf;
721:
722: if(strncmp(head->signature, "GIF", 3)!=0)
723: throw Exception(IMAGE_FORMAT, &origin_string, "not GIF file - wrong signature");
724:
725: width=endian_to_ushort(false, head->width);
726: height=endian_to_ushort(false, head->height);
727: }
728:
1.169 moko 729:
730: ///*********************************************** PNG
731:
732: struct PNG_Header {
733: char dummy[12];
734: char signature[4]; //< must be "IHDR"
735: uchar high_width[2]; //< image width high bytes [we ignore for now]
736: uchar width[2]; //< image width low bytes
737: uchar high_height[2]; //< image height high bytes [we ignore for now]
738: uchar height[4]; //< image height
739: };
740:
1.152 moko 741: static void measure_png(const String& origin_string, Measure_reader& reader, ushort& width, ushort& height) {
1.72 paf 742:
1.91 paf 743: const char* buf;
1.102 paf 744: const size_t head_size=sizeof(PNG_Header);
745: if(reader.read(buf, head_size)<head_size)
1.152 moko 746: throw Exception(IMAGE_FORMAT, &origin_string, "not PNG file - too small");
1.72 paf 747: PNG_Header *head=(PNG_Header *)buf;
748:
749: if(strncmp(head->signature, "IHDR", 4)!=0)
1.152 moko 750: throw Exception(IMAGE_FORMAT, &origin_string, "not PNG file - wrong signature");
1.72 paf 751:
1.80 paf 752: width=endian_to_ushort(true, head->width);
753: height=endian_to_ushort(true, head->height);
1.72 paf 754: }
755:
1.169 moko 756:
757: ///*********************************************** BMP
758:
759: struct BMP_Header {
760: char signature[2]; // 'BM'
761: uchar file_size[4];
762: uchar reserved[4];
763: uchar bitmap_offset[4];
764: uchar header_size[4];
765: uchar width[2];
766: uchar high_width[2]; //< image width high bytes [we ignore for now]
767: uchar height[2];
768: uchar high_height[2]; //< image height high bytes [we ignore for now]
769: };
770:
1.164 moko 771: static void measure_bmp(const String& origin_string, Measure_reader& reader, ushort& width, ushort& height) {
772:
773: const char* buf;
774: const size_t head_size=sizeof(BMP_Header);
775: if(reader.read(buf, head_size)<head_size)
776: throw Exception(IMAGE_FORMAT, &origin_string, "not BMP file - too small");
777: BMP_Header *head=(BMP_Header *)buf;
778:
779: if(strncmp(head->signature, "BM", 2)!=0)
780: throw Exception(IMAGE_FORMAT, &origin_string, "not BMP file - wrong signature");
781:
1.174 moko 782: if((uint)reader.length() != endian_to_uint(false, head->file_size))
1.164 moko 783: throw Exception(IMAGE_FORMAT, &origin_string, "not BMP file - length header and file size do not match");
784:
785: width=endian_to_ushort(false, head->width);
786: height=endian_to_ushort(false, head->height);
787: }
788:
1.168 moko 789:
1.169 moko 790: ///*********************************************** WEBP
791:
792: struct WEBP_Header {
793: char signature_riff[4]; // 'RIFF'
794: uchar file_size[4];
795: char signature[4]; // 'WEBP'
796: char format[4]; // 'VP8 ' or 'VP8L' or 'VP8X'
797: };
798:
799: struct WEBP_VP8_Chunk {
800: uchar size[4];
801: char tag[3];
802: uchar signature[3]; // 0x9D 0x01 0x2A
803: uchar width[2]; // 14 bits each
804: uchar height[2]; // 14 bits each
805: };
806:
807: struct WEBP_VP8L_Chunk {
808: uchar size[4];
809: char signature; // 0x2F
810: uchar width_height[4]; // 14 bits each
811: };
812:
813: struct WEBP_X_Chunk {
814: uchar size[4];
815: char reserved[4];
816: uchar width[3];
817: uchar height[3];
818: };
819:
1.168 moko 820: static void measure_webp(const String& origin_string, Measure_reader& reader, ushort& width, ushort& height) {
821: const char* buf;
822:
823: if(reader.read(buf, sizeof(WEBP_Header))<sizeof(WEBP_Header))
824: throw Exception(IMAGE_FORMAT, &origin_string, "not WEBP file - too small");
825:
826: WEBP_Header *head=(WEBP_Header *)buf;
827:
828: if(strncmp(head->signature_riff, "RIFF", 4)!=0 || strncmp(head->signature, "WEBP", 4)!=0)
829: throw Exception(IMAGE_FORMAT, &origin_string, "not WEBP file - wrong signature");
830:
831: if(strncmp(head->format, "VP8 ", 4)==0){
832: if(reader.read(buf, sizeof(WEBP_VP8_Chunk))<sizeof(WEBP_VP8_Chunk))
833: throw Exception(IMAGE_FORMAT, &origin_string, "broken WEBP file - too small VP8 chunk");
834:
835: WEBP_VP8_Chunk *chunk=(WEBP_VP8_Chunk *)buf;
836: if (chunk->signature[0] != 0x9D || chunk->signature[1] != 0x01 || chunk->signature[2] != 0x2A)
837: throw Exception(IMAGE_FORMAT, &origin_string, "broken WEBP file - wrong VP8 chunk signature");
838:
839: width=endian_to_ushort(false, chunk->width) & 0x3FFF;
840: height=endian_to_ushort(false, chunk->height) & 0x3FFF;
841: } else if(strncmp(head->format, "VP8L", 4)==0){
842: if(reader.read(buf, sizeof(WEBP_VP8L_Chunk))<sizeof(WEBP_VP8L_Chunk))
843: throw Exception(IMAGE_FORMAT, &origin_string, "broken WEBP file - too small VP8L chunk");
844:
845: WEBP_VP8L_Chunk *chunk=(WEBP_VP8L_Chunk *)buf;
846: if(chunk->signature != 0x2F)
847: throw Exception(IMAGE_FORMAT, &origin_string, "broken WEBP file - wrong VP8L chunk signature");
848:
849: uint wh=endian_to_uint(false, chunk->width_height);
850: width=(wh & 0x3FFF) + 1;
851: height=((wh >> 14) & 0x3FFF) + 1;
852: } else if (strncmp(head->format, "VP8X", 4)==0){
853: if(reader.read(buf, sizeof(WEBP_X_Chunk))<sizeof(WEBP_X_Chunk))
854: throw Exception(IMAGE_FORMAT, &origin_string, "broken WEBP file - too small VP8X chunk");
855:
856: WEBP_X_Chunk *chunk=(WEBP_X_Chunk *)buf;
857:
858: width=endian_to_ushort(false, chunk->width) + 1; // we ignore third byte to simplify code
859: height=endian_to_ushort(false, chunk->height) + 1; // we ignore third byte to simplify code
860: } else throw Exception(IMAGE_FORMAT, &origin_string, "broken WEBP file - invalid chunk signature");
861: }
862:
1.170 moko 863:
864: ///*********************************************** MP4
865:
866: struct MP4_Header {
867: uchar size[4];
868: char signature[4]; // 'ftyp' in first chunk
869: };
870:
1.173 moko 871: struct MP4_ExtSize {
872: uchar high[4];
873: uchar low[4];
874: };
875:
876: struct MP4_Tkhd {
877: uchar width[4];
878: uchar height[4];
879: };
880:
1.174 moko 881: static bool measure_mp4(const String& origin_string, Measure_reader& reader, ushort& width, ushort& height, uint64_t anext, const char* lastTkhd=NULL) {
1.170 moko 882: for(bool first=anext==0;;){
883: const char* buf;
1.174 moko 884: uint64_t next=reader.tell();
1.173 moko 885:
886: if(reader.read(buf, sizeof(MP4_Header))<sizeof(MP4_Header))
1.172 moko 887: throw Exception(IMAGE_FORMAT, &origin_string, first ? "not MP4 file - too small" : "broken MP4 file - truncated chunk header");
1.170 moko 888:
889: MP4_Header *head=(MP4_Header *)buf;
1.174 moko 890: uint64_t size=endian_to_uint(true, head->size);
1.170 moko 891:
1.173 moko 892: if(size==1){
893: if(reader.read(buf, sizeof(MP4_ExtSize))<sizeof(MP4_ExtSize))
894: throw Exception(IMAGE_FORMAT, &origin_string, "broken MP4 file - truncated chunk extended size header");
895: MP4_ExtSize *ext_size=(MP4_ExtSize *)buf;
1.174 moko 896: size=((uint64_t)endian_to_uint(true, ext_size->high) << 32) + endian_to_uint(true, ext_size->low);
1.173 moko 897: }
898: next+=size;
1.170 moko 899:
900: if(first){
901: if(strncmp(head->signature, "ftyp", 4)!=0)
902: throw Exception(IMAGE_FORMAT, &origin_string, "not MP4 file - wrong signature");
903: first=false;
1.174 moko 904: anext=reader.length(); // to avoid reading beyond EOF
1.170 moko 905: } else if(strncmp(head->signature, "moov", 4)==0 || strncmp(head->signature, "mdia", 4)==0 || strncmp(head->signature, "trak", 4)==0) {
906: if(measure_mp4(origin_string, reader, width, height, next, lastTkhd))
907: return true;
908: } else if(strncmp(head->signature, "tkhd", 4)==0) {
909: if(size>8){
1.174 moko 910: reader.seek(next-8);
1.173 moko 911: if(reader.read(lastTkhd, sizeof(MP4_Tkhd))<sizeof(MP4_Tkhd))
1.170 moko 912: throw Exception(IMAGE_FORMAT, &origin_string, "broken MP4 file - bad tkhd chunk");
913: }
914: } else if (strncmp(head->signature, "hdlr", 4)==0) {
915: if(size>12){
916: const char* hdlr;
917: if(reader.read(hdlr, 12)<12)
918: throw Exception(IMAGE_FORMAT, &origin_string, "broken MP4 file - bad hdlr chunk");
1.173 moko 919: if(lastTkhd && strncmp(hdlr+8, "vide", 4)==0) {
920: MP4_Tkhd *tkhd=(MP4_Tkhd *)lastTkhd;
921: width=endian_to_ushort(true, tkhd->width);
922: height=endian_to_ushort(true, tkhd->height);
1.170 moko 923: return true;
924: }
925: }
926: }
927: if(anext && next>=anext)
928: break;
1.174 moko 929: reader.seek(next);
1.170 moko 930: }
931: return false;
932: }
933:
934: static void measure_mp4(const String& origin_string, Measure_reader& reader, ushort& width, ushort& height) {
935: if(!measure_mp4(origin_string, reader, width, height, 0))
936: throw Exception(IMAGE_FORMAT, &origin_string, "unsupported MP4 file - size not found");
937: }
938:
1.169 moko 939: ///*********************************************** measure center
1.1 paf 940:
1.162 moko 941: static void measure(const String& file_name, Measure_reader& reader, Measure_info &info) {
1.128 misha 942: const char* file_name_cstr=file_name.taint_cstr(String::L_FILE_SPEC);
1.91 paf 943: if(const char* cext=strrchr(file_name_cstr, '.')) {
1.1 paf 944: cext++;
945: if(strcasecmp(cext, "GIF")==0)
1.162 moko 946: measure_gif(file_name, reader, info.width, info.height);
1.165 moko 947: else if(strcasecmp(cext, "JPG")==0 || strcasecmp(cext, "JPEG")==0)
1.162 moko 948: measure_jpeg(file_name, reader, info);
1.72 paf 949: else if(strcasecmp(cext, "PNG")==0)
1.162 moko 950: measure_png(file_name, reader, info.width, info.height);
1.164 moko 951: else if(strcasecmp(cext, "BMP")==0)
952: measure_bmp(file_name, reader, info.width, info.height);
1.168 moko 953: else if(strcasecmp(cext, "WEBP")==0)
954: measure_webp(file_name, reader, info.width, info.height);
1.165 moko 955: else if(strcasecmp(cext, "TIF")==0 || strcasecmp(cext, "TIFF")==0)
956: measure_tiff(file_name, reader, info);
1.171 moko 957: else if(strcasecmp(cext, "MP4")==0 || strcasecmp(cext, "MOV")==0)
1.170 moko 958: measure_mp4(file_name, reader, info.width, info.height);
1.1 paf 959: else
1.152 moko 960: throw Exception(IMAGE_FORMAT, &file_name, "unhandled image file name extension '%s'", cext);
1.1 paf 961: } else
1.152 moko 962: throw Exception(IMAGE_FORMAT, &file_name, "can not determine image type - no file name extension");
1.1 paf 963: }
964:
1.77 paf 965: // methods
1.1 paf 966:
1.152 moko 967: static void file_measure_action(struct stat& /*finfo*/, int f, const String& file_spec, void *context) {
968: Measure_file_reader reader(f, file_spec);
1.162 moko 969: measure(file_spec, reader, *static_cast<Measure_info *>(context));
1.1 paf 970: }
971:
1.91 paf 972: static void _measure(Request& r, MethodParams& params) {
973: Value& data=params.as_no_junction(0, "data must not be code");
1.1 paf 974:
1.91 paf 975: Value* exif=0;
1.162 moko 976: Value* xmp=0;
1.163 moko 977: Measure_info info={ 0, 0, 0, 0, &pa_UTF8_charset };
978:
979: if(params.count()>1)
980: if(HashStringValue* options=params.as_hash(1, "methods options")) {
981: int valid_options=0;
982: for(HashStringValue::Iterator i(*options); i; i.next() ){
983: String::Body key=i.key();
984: Value* value=i.value();
985: if(key == "exif") {
986: if(r.process(*value).as_bool())
987: info.exif=&exif;
988: valid_options++;
989: }
990: if(key == "xmp") {
991: if(r.process(*value).as_bool())
992: info.xmp=&xmp;
993: valid_options++;
994: }
995: if(key == "xmp-charset") {
996: info.xmp_charset=&pa_charsets.get(value->as_string());
997: valid_options++;
998: }
999: }
1000: if(valid_options!=options->count())
1001: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1002: }
1.162 moko 1003:
1.91 paf 1004: const String* file_name;
1.162 moko 1005:
1006: if(file_name=data.get_string()) {
1.167 moko 1007: file_read_action_under_lock(r.full_disk_path(*file_name), "measure", file_measure_action, &info);
1.1 paf 1008: } else {
1.129 misha 1009: VFile* vfile=data.as_vfile(String::L_AS_IS);
1.91 paf 1010: file_name=&vfile->fields().get(name_name)->as_string();
1.162 moko 1011: Measure_buf_reader reader(vfile->value_ptr(), vfile->value_size(), *file_name);
1012: measure(*file_name, reader, info);
1.1 paf 1013: }
1014:
1.162 moko 1015: GET_SELF(r, VImage).set(file_name, info.width, info.height, 0, exif, xmp);
1.1 paf 1016: }
1017:
1.161 moko 1018: static void append_attrib_pair(String &tag, String::Body key, Value* value){
1019: // skip border attribute with empty value
1020: if(key=="border" && !value->is_defined())
1.4 paf 1021: return;
1022:
1.133 misha 1023: // src="a.gif" width="123" ismap[=-1]
1.161 moko 1024: tag << " " << key;
1.91 paf 1025: if(value->is_string() || value->as_int()>=0)
1.161 moko 1026: tag << "=\"" << value->as_string() << "\"";
1.3 paf 1027: }
1.161 moko 1028:
1.91 paf 1029: static void _html(Request& r, MethodParams& params) {
1030: String tag;
1.3 paf 1031: tag << "<img";
1.4 paf 1032:
1.91 paf 1033: const HashStringValue& fields=GET_SELF(r, VImage).fields();
1034: HashStringValue* attribs=0;
1.4 paf 1035:
1.91 paf 1036: if(params.count()) {
1.69 paf 1037: // for backward compatibility: someday was ^html{}
1.154 moko 1038: Value& vattribs=r.process(params[0]);
1.145 moko 1039: if(!vattribs.is_string()) { // allow empty
1.100 paf 1040: if((attribs=vattribs.get_hash())) {
1.161 moko 1041: for(HashStringValue::Iterator i(*attribs); i; i.next() )
1042: append_attrib_pair(tag, i.key(), i.value());
1.39 parser 1043: } else
1.155 moko 1044: throw Exception(PARSER_RUNTIME, 0, "attributes must be hash");
1.145 moko 1045: }
1.39 parser 1046: }
1.4 paf 1047:
1.161 moko 1048: for(HashStringValue::Iterator i(fields); i; i.next() ){
1049: String::Body key=i.key();
1050: // skip user-specified attributes
1051: if(attribs && attribs->get(key))
1052: continue;
1053: // allow only html attributes (to exclude exif, line-*)
1054: if(key=="src" || key=="width" || key=="height" || key=="border")
1055: append_attrib_pair(tag, key, i.value());
1.91 paf 1056: }
1.161 moko 1057:
1.6 paf 1058: tag << " />";
1.157 moko 1059: r.write(tag);
1.3 paf 1060: }
1.8 paf 1061:
1.68 paf 1062: /// @test wrap FILE to auto-object
1.155 moko 1063: static gdImage* load(Request& r, const String& file_name){
1.167 moko 1064: const char* file_name_cstr=r.full_disk_path(file_name).taint_cstr(String::L_FILE_SPEC);
1.159 moko 1065: if(FILE *f=pa_fopen(file_name_cstr, "rb")) {
1.91 paf 1066: gdImage* image=new gdImage;
1067: bool ok=image->CreateFromGif(f);
1.16 paf 1068: fclose(f);
1.23 paf 1069: if(!ok)
1.155 moko 1070: throw Exception(IMAGE_FORMAT, &file_name, "is not in GIF format");
1.91 paf 1071: return image;
1.16 paf 1072: } else {
1.155 moko 1073: throw Exception("file.missing", 0, "can not open '%s'", file_name_cstr);
1.16 paf 1074: }
1075: }
1076:
1077:
1.91 paf 1078: static void _load(Request& r, MethodParams& params) {
1.116 misha 1079: const String& file_name=params.as_string(0, FILE_NAME_MUST_NOT_BE_CODE);
1.6 paf 1080:
1.91 paf 1081: gdImage* image=load(r, file_name);
1082: GET_SELF(r, VImage).set(&file_name, image->SX(), image->SY(), image);
1.6 paf 1083: }
1084:
1.91 paf 1085: static void _create(Request& r, MethodParams& params) {
1086: int width=params.as_int(0, "width must be int", r);
1087: int height=params.as_int(1, "height must be int", r);
1.8 paf 1088: int bgcolor_value=0xffFFff;
1.91 paf 1089: if(params.count()>2)
1090: bgcolor_value=params.as_int(2, "color must be int", r);
1091: gdImage* image=new gdImage;
1092: image->Create(width, height);
1093: image->FilledRectangle(0, 0, width-1, height-1, image->Color(bgcolor_value));
1094: GET_SELF(r, VImage).set(0, width, height, image);
1.6 paf 1095: }
1096:
1.91 paf 1097: static void _gif(Request& r, MethodParams& params) {
1.108 paf 1098: gdImage& image=GET_SELF(r, VImage).image();
1.6 paf 1099:
1.138 misha 1100: const String *file_name=params.count()>0?¶ms.as_string(0, FILE_NAME_MUST_BE_STRING):0;
1.10 paf 1101:
1.108 paf 1102: gdBuf buf=image.Gif();
1.6 paf 1103:
1.91 paf 1104: VFile& vfile=*new VFile;
1.137 misha 1105:
1.142 moko 1106: vfile.set_binary(false/*not tainted*/, (const char *)buf.ptr, buf.size, file_name, new VString(*new String("image/gif")));
1.137 misha 1107:
1.157 moko 1108: r.write(vfile);
1.6 paf 1109: }
1110:
1.91 paf 1111: static void _line(Request& r, MethodParams& params) {
1.108 paf 1112: gdImage& image=GET_SELF(r, VImage).image();
1.12 paf 1113:
1.108 paf 1114: image.Line(
1.91 paf 1115: params.as_int(0, "x0 must be int", r),
1116: params.as_int(1, "y0 must be int", r),
1117: params.as_int(2, "x1 must be int", r),
1118: params.as_int(3, "y1 must be int", r),
1.108 paf 1119: image.Color(params.as_int(4, "color must be int", r)));
1.13 paf 1120: }
1121:
1.91 paf 1122: static void _fill(Request& r, MethodParams& params) {
1.108 paf 1123: gdImage& image=GET_SELF(r, VImage).image();
1.12 paf 1124:
1.108 paf 1125: image.Fill(
1.91 paf 1126: params.as_int(0, "x must be int", r),
1127: params.as_int(1, "y must be int", r),
1.108 paf 1128: image.Color(params.as_int(2, "color must be int", r)));
1.13 paf 1129: }
1130:
1.91 paf 1131: static void _rectangle(Request& r, MethodParams& params) {
1.108 paf 1132: gdImage& image=GET_SELF(r, VImage).image();
1.13 paf 1133:
1.108 paf 1134: image.Rectangle(
1.91 paf 1135: params.as_int(0, "x0 must be int", r),
1136: params.as_int(1, "y0 must be int", r),
1137: params.as_int(2, "x1 must be int", r),
1138: params.as_int(3, "y1 must be int", r),
1.108 paf 1139: image.Color(params.as_int(4, "color must be int", r)));
1.13 paf 1140: }
1141:
1.91 paf 1142: static void _bar(Request& r, MethodParams& params) {
1.108 paf 1143: gdImage& image=GET_SELF(r, VImage).image();
1.13 paf 1144:
1.108 paf 1145: image.FilledRectangle(
1.91 paf 1146: params.as_int(0, "x0 must be int", r),
1147: params.as_int(1, "y0 must be int", r),
1148: params.as_int(2, "x1 must be int", r),
1149: params.as_int(3, "y1 must be int", r),
1.108 paf 1150: image.Color(params.as_int(4, "color must be int", r)));
1.13 paf 1151: }
1152:
1.44 parser 1153: #ifndef DOXYGEN
1.155 moko 1154: static void add_point(Table::element_type row, gdImage::Point **p) {
1.110 paf 1155: if(row->count()!=2)
1.155 moko 1156: throw Exception(0, 0, "coordinates table must contain two columns: x and y values");
1.91 paf 1157: (**p).x=row->get(0)->as_int();
1158: (**p).y=row->get(1)->as_int();
1.44 parser 1159: (*p)++;
1160: }
1161: #endif
1.135 misha 1162: #ifndef DOXYGEN
1.155 moko 1163: static void add_point(int x, int y, gdImage::Point **p) {
1.135 misha 1164: (**p).x=x;
1165: (**p).y=y;
1166: (*p)++;
1167: }
1168: #endif
1.91 paf 1169: static void _replace(Request& r, MethodParams& params) {
1.135 misha 1170: int src_color=params.as_int(0, "src color must be int", r);
1171: int dest_color=params.as_int(1, "dest color must be int", r);
1172:
1.108 paf 1173: gdImage& image=GET_SELF(r, VImage).image();
1.13 paf 1174:
1.135 misha 1175: gdImage::Point* all_p=0;
1176: size_t count=0;
1177: if(params.count() == 3){
1.140 misha 1178: Table* table=params.as_table(2, "coordinates");
1.135 misha 1179: count=table->count();
1180: all_p=new(PointerFreeGC) gdImage::Point[count];
1181: gdImage::Point* add_p=all_p;
1182: table->for_each(add_point, &add_p);
1183: } else {
1184: int max_x=image.SX()-1;
1185: int max_y=image.SY()-1;
1186: if(max_x > 0 && max_y > 0){
1187: count=4;
1188: all_p=new(PointerFreeGC) gdImage::Point[count];
1189: gdImage::Point* add_p=all_p;
1190: add_point(0, 0, &add_p);
1191: add_point(max_x, 0, &add_p);
1192: add_point(max_x, max_y, &add_p);
1193: add_point(0, max_y, &add_p);
1194: }
1195: }
1.13 paf 1196:
1.135 misha 1197: if(count)
1198: image.FilledPolygonReplaceColor(all_p, count, image.Color(src_color), image.Color(dest_color));
1.13 paf 1199: }
1200:
1.91 paf 1201: static void _polyline(Request& r, MethodParams& params) {
1.108 paf 1202: gdImage& image=GET_SELF(r, VImage).image();
1.13 paf 1203:
1.140 misha 1204: Table* table=params.as_table(1, "coordinates");
1.44 parser 1205:
1.92 paf 1206: gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()];
1.44 parser 1207: gdImage::Point *add_p=all_p;
1208: table->for_each(add_point, &add_p);
1.108 paf 1209: image.Polygon(all_p, table->count(),
1210: image.Color(params.as_int(0, "color must be int", r)),
1.44 parser 1211: false/*not closed*/);
1212: }
1213:
1.91 paf 1214: static void _polygon(Request& r, MethodParams& params) {
1.108 paf 1215: gdImage& image=GET_SELF(r, VImage).image();
1.13 paf 1216:
1.140 misha 1217: Table* table=(Table*)params.as_table(1, "coordinates");
1.44 parser 1218:
1.92 paf 1219: gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()];
1.44 parser 1220: gdImage::Point *add_p=all_p;
1221: table->for_each(add_point, &add_p);
1.108 paf 1222: image.Polygon(all_p, table->count(),
1223: image.Color(params.as_int(0, "color must be int", r)));
1.13 paf 1224: }
1225:
1.91 paf 1226: static void _polybar(Request& r, MethodParams& params) {
1.108 paf 1227: gdImage& image=GET_SELF(r, VImage).image();
1.13 paf 1228:
1.140 misha 1229: Table* table=(Table*)params.as_table(1, "coordinates");
1.13 paf 1230:
1.92 paf 1231: gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()];
1.44 parser 1232: gdImage::Point *add_p=all_p;
1233: table->for_each(add_point, &add_p);
1.108 paf 1234: image.FilledPolygon(all_p, table->count(),
1235: image.Color(params.as_int(0, "color must be int", r)));
1.12 paf 1236: }
1237:
1.16 paf 1238: // font
1239:
1.85 paf 1240: #define Y(y)(y+index*height)
1.21 paf 1241:
1.91 paf 1242: // Font class
1243:
1.155 moko 1244: Font::Font(Charset& asource_charset, const String& aalphabet, gdImage* aifont, int aheight, int amonospace, int aspacebarspace, int aletterspacing):
1.158 moko 1245: letterspacing(aletterspacing),
1.132 misha 1246: height(aheight),
1247: monospace(amonospace),
1248: spacebarspace(aspacebarspace),
1.100 paf 1249: ifont(aifont),
1.158 moko 1250: alphabet(aalphabet),
1251: fsource_charset(asource_charset){
1.132 misha 1252:
1253: if(fsource_charset.isUTF8()){
1254: size_t index=0;
1255: for(UTF8_string_iterator i(alphabet); i.has_next(); )
1256: fletter2index.put_dont_replace(i.next(), index++);
1257: }
1.91 paf 1258: }
1259:
1260: /* ******************************** char ********************************** */
1261:
1262: size_t Font::index_of(char ch) {
1263: if(ch==' ') return STRING_NOT_FOUND;
1264: return alphabet.pos(ch);
1265: }
1266:
1.132 misha 1267: size_t Font::index_of(XMLCh ch) {
1268: if(ch==' ') return STRING_NOT_FOUND;
1269: return fletter2index.get(ch);
1270: }
1271:
1.91 paf 1272: int Font::index_width(size_t index) {
1273: if(index==STRING_NOT_FOUND)
1274: return spacebarspace;
1275: int tr=ifont->GetTransparent();
1276: for(int x=ifont->SX()-1; x>=0; x--) {
1277: for(int y=0; y<height; y++)
1278: if(ifont->GetPixel(x, Y(y))!=tr)
1279: return x+1;
1.16 paf 1280: }
1.91 paf 1281: return 0;
1282: }
1283:
1.108 paf 1284: void Font::index_display(gdImage& image, int x, int y, size_t index){
1.91 paf 1285: if(index!=STRING_NOT_FOUND)
1.108 paf 1286: ifont->Copy(image, x, y, 0, Y(0), index_width(index), height);
1.91 paf 1287: }
1288:
1289: /* ******************************** string ********************************** */
1290:
1291: int Font::step_width(int index) {
1.125 misha 1292: return letterspacing + (monospace ? monospace : index_width(index));
1.91 paf 1293: }
1294:
1295: // counts trailing letter_spacing, consider this OK. useful for contiuations
1296: int Font::string_width(const String& s){
1297: const char* cstr=s.cstr();
1298: int result=0;
1.132 misha 1299:
1300: if(fsource_charset.isUTF8()){
1301: for(UTF8_string_iterator i(s); i.has_next(); )
1302: result+=step_width(index_of(i.next()));
1303: } else {
1304: for(const char* current=cstr; *current; current++)
1305: result+=step_width(index_of(*current));
1306: }
1307:
1.91 paf 1308: return result;
1309: }
1310:
1.108 paf 1311: void Font::string_display(gdImage& image, int x, int y, const String& s){
1.91 paf 1312: const char* cstr=s.cstr();
1.132 misha 1313:
1314: if(fsource_charset.isUTF8()){
1315: for(UTF8_string_iterator i(s); i.has_next(); ){
1316: size_t index=index_of(i.next());
1317: index_display(image, x, y, index);
1318: x+=step_width(index);
1319: }
1320: } else {
1321: for(const char* current=cstr; *current; current++) {
1322: size_t index=index_of(*current);
1323: index_display(image, x, y, index);
1324: x+=step_width(index);
1325: }
1.87 paf 1326: }
1.91 paf 1327: }
1.87 paf 1328:
1.91 paf 1329: //
1.35 parser 1330:
1.16 paf 1331:
1.91 paf 1332: static void _font(Request& r, MethodParams& params) {
1333: const String& alphabet=params.as_string(0, "alphabet must not be code");
1.131 misha 1334: size_t alphabet_length=alphabet.length(r.charsets.source());
1335: if(!alphabet_length)
1.155 moko 1336: throw Exception(PARSER_RUNTIME, 0, "alphabet must not be empty");
1.84 paf 1337:
1.125 misha 1338: gdImage* image=load(r, params.as_string(1, FILE_NAME_MUST_NOT_BE_CODE));
1339:
1.126 misha 1340: int spacebar_width=image->SX();
1.125 misha 1341: int monospace_width=0; // proportional
1342: int letter_spacing=1;
1343: if(params.count()>2){
1.144 moko 1344: if(HashStringValue* options=params[2].get_hash()){
1.125 misha 1345: // third option is hash
1346: if(params.count()>3)
1.144 moko 1347: throw Exception(PARSER_RUNTIME, 0, "too many params were specified");
1.125 misha 1348: int valid_options=0;
1349: if(Value* vspacebar_width=options->get(spacebar_width_name)){
1350: valid_options++;
1.153 moko 1351: spacebar_width=r.process(*vspacebar_width).as_int();
1.125 misha 1352: }
1353: if(Value* vmonospace_width=options->get(monospace_width_name)){
1354: valid_options++;
1.153 moko 1355: monospace_width=r.process(*vmonospace_width).as_int();
1.125 misha 1356: if(!monospace_width)
1357: monospace_width=image->SX();
1358: }
1359: if(Value* vletter_spacing=options->get(letter_spacing_name)){
1360: valid_options++;
1.153 moko 1361: letter_spacing=r.process(*vletter_spacing).as_int();
1.125 misha 1362: }
1363: if(valid_options!=options->count())
1.134 misha 1364: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.125 misha 1365: } else {
1366: // backward
1.144 moko 1367: spacebar_width=params.as_int(2, "param must be int or hash", r);
1.125 misha 1368: if(params.count()>3) {
1369: monospace_width=params.as_int(3, "monospace_width must be int", r);
1370: if(!monospace_width)
1371: monospace_width=image->SX();
1372: }
1373: }
1374: }
1375:
1.131 misha 1376: if(int remainder=image->SY() % alphabet_length)
1.155 moko 1377: throw Exception(PARSER_RUNTIME, 0, "font-file height(%d) not divisable by alphabet size(%d), remainder=%d", image->SY(), alphabet_length, remainder);
1.37 parser 1378:
1.155 moko 1379: GET_SELF(r, VImage).set_font(new Font(r.charsets.source(), alphabet, image, image->SY() / alphabet_length, monospace_width, spacebar_width, letter_spacing));
1.16 paf 1380: }
1381:
1.91 paf 1382: static void _text(Request& r, MethodParams& params) {
1383: int x=params.as_int(0, "x must be int", r);
1384: int y=params.as_int(1, "y must be int", r);
1385: const String& s=params.as_string(2, "text must not be code");
1.16 paf 1386:
1.91 paf 1387: VImage& vimage=GET_SELF(r, VImage);
1.108 paf 1388: vimage.font().string_display(vimage.image(), x, y, s);
1.16 paf 1389: }
1390:
1.91 paf 1391: static void _length(Request& r, MethodParams& params) {
1392: const String& s=params.as_string(0, "text must not be code");
1.47 parser 1393:
1.91 paf 1394: VImage& vimage=GET_SELF(r, VImage);
1.157 moko 1395: r.write(*new VInt(vimage.font().string_width(s)));
1.47 parser 1396: }
1397:
1.91 paf 1398: static void _arc(Request& r, MethodParams& params) {
1.108 paf 1399: gdImage& image=GET_SELF(r, VImage).image();
1.48 parser 1400:
1.108 paf 1401: image.Arc(
1.91 paf 1402: params.as_int(0, "center_x must be int", r),
1403: params.as_int(1, "center_y must be int", r),
1404: params.as_int(2, "width must be int", r),
1405: params.as_int(3, "height must be int", r),
1406: params.as_int(4, "start degrees must be int", r),
1407: params.as_int(5, "end degrees must be int", r),
1.108 paf 1408: image.Color(params.as_int(6, "cx must be int", r)));
1.48 parser 1409: }
1410:
1.91 paf 1411: static void _sector(Request& r, MethodParams& params) {
1.108 paf 1412: gdImage& image=GET_SELF(r, VImage).image();
1.49 parser 1413:
1.108 paf 1414: image.Sector(
1.91 paf 1415: params.as_int(0, "center_x must be int", r),
1416: params.as_int(1, "center_y must be int", r),
1417: params.as_int(2, "width must be int", r),
1418: params.as_int(3, "height must be int", r),
1419: params.as_int(4, "start degrees must be int", r),
1420: params.as_int(5, "end degrees must be int", r),
1.108 paf 1421: image.Color(params.as_int(6, "color must be int", r)));
1.49 parser 1422: }
1423:
1.91 paf 1424: static void _circle(Request& r, MethodParams& params) {
1.108 paf 1425: gdImage& image=GET_SELF(r, VImage).image();
1.48 parser 1426:
1.91 paf 1427: int size=params.as_int(2, "radius must be int", r)*2;
1.108 paf 1428: image.Arc(
1.91 paf 1429: params.as_int(0, "center_x must be int", r),
1430: params.as_int(1, "center_y must be int", r),
1.50 parser 1431: size, //w
1432: size, //h
1.48 parser 1433: 0, //s
1434: 360, //e
1.108 paf 1435: image.Color(params.as_int(3, "color must be int", r)));
1.48 parser 1436: }
1437:
1.108 paf 1438: gdImage& as_image(MethodParams& params, int index, const char* msg) {
1.91 paf 1439: Value& value=params.as_no_junction(index, msg);
1.53 parser 1440:
1.130 misha 1441: if(Value* vimage=value.as(VIMAGE_TYPE)) {
1.108 paf 1442: return static_cast<VImage *>(vimage)->image();
1.75 paf 1443: } else
1.155 moko 1444: throw Exception(PARSER_RUNTIME, 0, msg);
1.53 parser 1445: }
1446:
1.91 paf 1447: static void _copy(Request& r, MethodParams& params) {
1.108 paf 1448: gdImage& dest=GET_SELF(r, VImage).image();
1.53 parser 1449:
1.108 paf 1450: gdImage& src=as_image(params, 0, "src must be image");
1.53 parser 1451:
1.91 paf 1452: int sx=params.as_int(1, "src_x must be int", r);
1453: int sy=params.as_int(2, "src_y must be int", r);
1454: int sw=params.as_int(3, "src_w must be int", r);
1455: int sh=params.as_int(4, "src_h must be int", r);
1456: int dx=params.as_int(5, "dest_x must be int", r);
1457: int dy=params.as_int(6, "dest_y must be int", r);
1458: if(params.count()>1+2+2+2) {
1459: int dw=params.as_int(1+2+2+2, "dest_w must be int", r);
1460: int dh=(int)(params.count()>1+2+2+2+1?
1461: params.as_int(1+2+2+2+1, "dest_h must be int", r):sh*(((double)dw)/((double)sw)));
1462: int tolerance=params.count()>1+2+2+2+2?
1463: params.as_int(1+2+2+2+2, "tolerance must be int", r):150;
1.53 parser 1464:
1.108 paf 1465: src.CopyResampled(dest, dx, dy, sx, sy, dw, dh, sw, sh, tolerance);
1.53 parser 1466: } else
1.108 paf 1467: src.Copy(dest, dx, dy, sx, sy, sw, sh);
1468: }
1469:
1470: static void _pixel(Request& r, MethodParams& params) {
1471: gdImage& image=GET_SELF(r, VImage).image();
1472:
1.109 paf 1473: int x=params.as_int(0, "x must be int", r);
1474: int y=params.as_int(1, "y must be int", r);
1475:
1476: if(params.count()>2) {
1477: image.SetPixel(x, y,
1478: image.Color(params.as_int(2, "color must be int", r)));
1479: } else
1.157 moko 1480: r.write(*new VInt(image.DecodeColor(image.GetPixel(x, y))));
1.53 parser 1481: }
1482:
1483:
1.22 paf 1484: // constructor
1485:
1.91 paf 1486: MImage::MImage(): Methoded("image") {
1.1 paf 1487: // ^image:measure[DATA]
1.163 moko 1488: // ^image:measure[DATA; $.exif(false) $.xmp(false) $.xmp-charset[UTF-8] ]
1489: add_native_method("measure", Method::CT_DYNAMIC, _measure, 1, 2);
1.3 paf 1490:
1.25 paf 1491: // ^image.html[]
1492: // ^image.html[hash]
1.22 paf 1493: add_native_method("html", Method::CT_DYNAMIC, _html, 0, 1);
1.6 paf 1494:
1.25 paf 1495: // ^image.load[background.gif]
1.22 paf 1496: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 1);
1.6 paf 1497:
1.25 paf 1498: // ^image.create[width;height] bgcolor=white
1499: // ^image.create[width;height;bgcolor]
1.22 paf 1500: add_native_method("create", Method::CT_DYNAMIC, _create, 2, 3);
1.6 paf 1501:
1.25 paf 1502: // ^image.gif[]
1.95 paf 1503: add_native_method("gif", Method::CT_DYNAMIC, _gif, 0, 1);
1.12 paf 1504:
1.25 paf 1505: // ^image.line(x0;y0;x1;y1;color)
1.22 paf 1506: add_native_method("line", Method::CT_DYNAMIC, _line, 5, 5);
1.13 paf 1507:
1.25 paf 1508: // ^image.fill(x;y;color)
1.22 paf 1509: add_native_method("fill", Method::CT_DYNAMIC, _fill, 3, 3);
1.13 paf 1510:
1.25 paf 1511: // ^image.rectangle(x0;y0;x1;y1;color)
1.22 paf 1512: add_native_method("rectangle", Method::CT_DYNAMIC, _rectangle, 5, 5);
1.13 paf 1513:
1.25 paf 1514: // ^image.bar(x0;y0;x1;y1;color)
1.22 paf 1515: add_native_method("bar", Method::CT_DYNAMIC, _bar, 5, 5);
1.13 paf 1516:
1.44 parser 1517: // ^image.replace(color-source;color-dest)[table x:y]
1.135 misha 1518: // ^image.replace(color-source;color-dest)
1519: add_native_method("replace", Method::CT_DYNAMIC, _replace, 2, 3);
1.44 parser 1520:
1521: // ^image.polyline(color)[table x:y]
1522: add_native_method("polyline", Method::CT_DYNAMIC, _polyline, 2, 2);
1.13 paf 1523:
1.44 parser 1524: // ^image.polygon(color)[table x:y]
1525: add_native_method("polygon", Method::CT_DYNAMIC, _polygon, 2, 2);
1.13 paf 1526:
1.44 parser 1527: // ^image.polybar(color)[table x:y]
1528: add_native_method("polybar", Method::CT_DYNAMIC, _polybar, 2, 2);
1.13 paf 1529:
1.125 misha 1530: // ^image.font[alPHAbet;font-file-name.gif]
1531: // ^image.font[alPHAbet;font-file-name.gif](spacebar_width)
1532: // ^image.font[alPHAbet;font-file-name.gif](spacebar_width;letter_width)
1533: // ^image.font[alPHAbet;font-file-name.gif][$.space-width(.) $.letter-width(.) $.letter-space(.)]
1534: add_native_method("font", Method::CT_DYNAMIC, _font, 2, 4);
1.16 paf 1535:
1.125 misha 1536: // ^image.text(x;y)[text]
1.22 paf 1537: add_native_method("text", Method::CT_DYNAMIC, _text, 3, 3);
1.47 parser 1538:
1.125 misha 1539: // ^image.length[text]
1.47 parser 1540: add_native_method("length", Method::CT_DYNAMIC, _length, 1, 1);
1.16 paf 1541:
1.48 parser 1542: // ^image.arc(center x;center y;width;height;start in degrees;end in degrees;color)
1543: add_native_method("arc", Method::CT_DYNAMIC, _arc, 7, 7);
1.49 parser 1544:
1545: // ^image.sector(center x;center y;width;height;start in degrees;end in degrees;color)
1546: add_native_method("sector", Method::CT_DYNAMIC, _sector, 7, 7);
1.48 parser 1547:
1548: // ^image.circle(center x;center y;r;color)
1549: add_native_method("circle", Method::CT_DYNAMIC, _circle, 4, 4);
1550:
1.56 parser 1551: // ^image.copy[source](src x;src y;src w;src h;dst x;dst y[;dest w[;dest h[;tolerance]]])
1552: add_native_method("copy", Method::CT_DYNAMIC, _copy, 1+2+2+2, (1+2+2+2)+2+1);
1.108 paf 1553:
1554: // ^image.pixel(x;y)[(color)]
1.109 paf 1555: add_native_method("pixel", Method::CT_DYNAMIC, _pixel, 2, 3);
1.1 paf 1556: }
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