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| version 1.113, 2005/08/09 08:14:48 | version 1.149, 2015/10/12 16:59:43 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b image parser class. | Parser: @b image parser class. |
| Copyright(c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| static const char * const IDENT_IMAGE_C="$Date$"; | |
| /* | /* |
| jpegsize: gets the width and height (in pixels) of a jpeg file | jpegsize: gets the width and height (in pixels) of a jpeg file |
| Andrew Tong, werdna@ugcs.caltech.edu February 14, 1995 | Andrew Tong, werdna@ugcs.caltech.edu February 14, 1995 |
| Line 17 static const char * const IDENT_IMAGE_C= | Line 15 static const char * const IDENT_IMAGE_C= |
| */ | */ |
| #include "pa_config_includes.h" | #include "pa_config_includes.h" |
| #include "pa_vmethod_frame.h" | |
| #include "gif.h" | #include "gif.h" |
| #include "pa_vmethod_frame.h" | |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vfile.h" | #include "pa_vfile.h" |
| Line 29 static const char * const IDENT_IMAGE_C= | Line 25 static const char * const IDENT_IMAGE_C= |
| #include "pa_vdate.h" | #include "pa_vdate.h" |
| #include "pa_table.h" | #include "pa_table.h" |
| volatile const char * IDENT_IMAGE_C="$Id$"; | |
| // defines | |
| static const String spacebar_width_name("space"); | |
| static const String monospace_width_name("width"); | |
| static const String letter_spacing_name("spacing"); | |
| // class | // class |
| class MImage: public Methoded { | class MImage: public Methoded { |
| public: // VStateless_class | public: // VStateless_class |
| Value* create_new_value(Pool&, HashStringValue&) { return new VImage(); } | Value* create_new_value(Pool&) { return new VImage(); } |
| public: | public: |
| MImage(); | MImage(); |
| public: // Methoded | |
| bool used_directly() { return true; } | |
| }; | }; |
| // globals | // globals |
| Line 49 DECLARE_CLASS_VAR(image, new MImage, 0); | Line 49 DECLARE_CLASS_VAR(image, new MImage, 0); |
| // helpers | // helpers |
| #define EXIF_TAG(tag, name) put(tag, #name); | |
| /// value of exif tag -> it's value | /// value of exif tag -> it's value |
| class EXIF_tag_value2name: public Hash<int, const char*> { | class EXIF_tag_value2name: public Hash<int, const char*> { |
| public: | public: |
| EXIF_tag_value2name() { | EXIF_tag_value2name() { |
| // image JPEG Exif | // image JPEG Exif |
| #define EXIF_TAG(tag, name) \ | |
| put(tag, #name); | |
| // Tags used by IFD0 (main image) | // Tags used by IFD0 (main image) |
| EXIF_TAG(0x010e, ImageDescription); | EXIF_TAG(0x010e, ImageDescription); |
| EXIF_TAG(0x010f, Make); | EXIF_TAG(0x010f, Make); |
| Line 130 public: | Line 130 public: |
| EXIF_TAG(0x83bb, IPTC/NAA); | EXIF_TAG(0x83bb, IPTC/NAA); |
| EXIF_TAG(0x8773, InterColorProfile); | EXIF_TAG(0x8773, InterColorProfile); |
| EXIF_TAG(0x8824, SpectralSensitivity); | EXIF_TAG(0x8824, SpectralSensitivity); |
| EXIF_TAG(0x8825, GPSInfo); | //EXIF_TAG(0x8825, GPSInfo); |
| EXIF_TAG(0x8828, OECF); | EXIF_TAG(0x8828, OECF); |
| EXIF_TAG(0x8829, Interlace); | EXIF_TAG(0x8829, Interlace); |
| EXIF_TAG(0x882a, TimeZoneOffset); | EXIF_TAG(0x882a, TimeZoneOffset); |
| Line 147 public: | Line 147 public: |
| EXIF_TAG(0xa20b, FlashEnergy); | EXIF_TAG(0xa20b, FlashEnergy); |
| EXIF_TAG(0xa20c, SpatialFrequencyResponse); | EXIF_TAG(0xa20c, SpatialFrequencyResponse); |
| EXIF_TAG(0xa214, SubjectLocation); | EXIF_TAG(0xa214, SubjectLocation); |
| #undef EXIF_TAG | |
| // additional things added by misha@ | |
| EXIF_TAG(0x0100, ImageWidth); | |
| EXIF_TAG(0x0101, ImageLength); | |
| EXIF_TAG(0x0102, BitsPerSample); | |
| EXIF_TAG(0x0103, Compression); | |
| EXIF_TAG(0x0106, PhotometricInterpretation); | |
| EXIF_TAG(0x010a, FillOrder); | |
| EXIF_TAG(0x010d, DocumentName); | |
| EXIF_TAG(0x0111, StripOffsets); | |
| EXIF_TAG(0x0115, SamplesPerPixel); | |
| EXIF_TAG(0x0116, RowsPerStrip); | |
| EXIF_TAG(0x0117, StripByteCounts); | |
| EXIF_TAG(0x011c, PlanarConfiguration); | |
| EXIF_TAG(0x0156, TransferRange); | |
| EXIF_TAG(0x0200, JPEGProc); | |
| EXIF_TAG(0x0201, JPEGInterchangeFormat); | |
| EXIF_TAG(0x0202, JPEGInterchangeFormatLength); | |
| EXIF_TAG(0x0212, YCbCrSubSampling); | |
| EXIF_TAG(0xa401, CustomRendered); | |
| EXIF_TAG(0xa402, ExposureMode); | |
| EXIF_TAG(0xa403, WhiteBalance); | |
| EXIF_TAG(0xa404, DigitalZoomRatio); | |
| EXIF_TAG(0xa405, FocalLengthIn35mmFilm); | |
| EXIF_TAG(0xa406, SceneCaptureType); | |
| EXIF_TAG(0xa407, GainControl); | |
| EXIF_TAG(0xa408, Contrast); | |
| EXIF_TAG(0xa409, Saturation); | |
| EXIF_TAG(0xa40a, Sharpness); | |
| EXIF_TAG(0xa40b, DeviceSettingDescription); | |
| EXIF_TAG(0xa40c, SubjectDistanceRange); | |
| EXIF_TAG(0xa420, ImageUniqueID); | |
| // other tags | |
| EXIF_TAG(0xa430, CameraOwnerName); | |
| EXIF_TAG(0xa431, BodySerialNumber); | |
| EXIF_TAG(0xa432, LensSpecification); | |
| EXIF_TAG(0xa433, LensManufactor); | |
| EXIF_TAG(0xa434, LensModel); | |
| EXIF_TAG(0xa435, LensSerialNumber); | |
| } | } |
| } exif_tag_value2name; | } exif_tag_value2name; |
| class EXIF_gps_tag_value2name: public Hash<int, const char*> { | |
| public: | |
| EXIF_gps_tag_value2name() { | |
| EXIF_TAG(0x0, GPSVersionID); | |
| EXIF_TAG(0x1, GPSLatitudeRef); | |
| EXIF_TAG(0x2, GPSLatitude); | |
| EXIF_TAG(0x3, GPSLongitudeRef); | |
| EXIF_TAG(0x4, GPSLongitude); | |
| EXIF_TAG(0x5, GPSAltitudeRef); | |
| EXIF_TAG(0x6, GPSAltitude); | |
| EXIF_TAG(0x7, GPSTimeStamp); | |
| EXIF_TAG(0x8, GPSSatellites); | |
| EXIF_TAG(0x9, GPSStatus); | |
| EXIF_TAG(0xA, GPSMeasureMode); | |
| EXIF_TAG(0xB, GPSDOP); | |
| EXIF_TAG(0xC, GPSSpeedRef); | |
| EXIF_TAG(0xD, GPSSpeed); | |
| EXIF_TAG(0xE, GPSTrackRef); | |
| EXIF_TAG(0xF, GPSTrack); | |
| EXIF_TAG(0x10, GPSImgDirectionRef); | |
| EXIF_TAG(0x11, GPSImgDirection); | |
| EXIF_TAG(0x12, GPSMapDatum); | |
| EXIF_TAG(0x13, GPSDestLatitudeRef); | |
| EXIF_TAG(0x14, GPSDestLatitude); | |
| EXIF_TAG(0x15, GPSDestLongitudeRef); | |
| EXIF_TAG(0x16, GPSDestLongitude); | |
| EXIF_TAG(0x17, GPSDestBearingRef); | |
| EXIF_TAG(0x18, GPSDestBearing); | |
| EXIF_TAG(0x19, GPSDestDistanceRef); | |
| EXIF_TAG(0x1A, GPSDestDistance); | |
| EXIF_TAG(0x1B, GPSProcessingMethod); | |
| EXIF_TAG(0x1C, GPSAreaInformation); | |
| EXIF_TAG(0x1D, GPSDateStamp); | |
| EXIF_TAG(0x1E, GPSDifferential); | |
| } | |
| } exif_gps_tag_value2name; | |
| #undef EXIF_TAG | |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| class Measure_reader { | class Measure_reader { |
| Line 174 public: | Line 251 public: |
| return 0; | return 0; |
| char* lbuf=new(PointerFreeGC) char[limit]; | char* lbuf=new(PointerFreeGC) char[limit]; |
| size_t read_size=(size_t)::read(f, lbuf, limit); abuf=lbuf; | ssize_t read_size=::read(f, lbuf, limit); abuf=lbuf; |
| if(ssize_t(read_size)<0 || read_size>limit) | if(read_size<0) |
| throw Exception(0, | throw Exception(0, &file_name, "measure read failed: %s (%d)", strerror(errno), errno); |
| &file_name, | |
| "measure failed: actually read %u bytes count not in [0..%u] valid range", | |
| read_size, limit); | |
| return read_size; | return read_size; |
| } | } |
| override void seek(long value, int whence) { | override void seek(long value, int whence) { |
| if(lseek(f, value, whence)<0) | if(lseek(f, value, whence)<0) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &file_name, | &file_name, |
| "seek(value=%ld, whence=%d) failed: %s (%d), actual filename '%s'", | "seek(value=%ld, whence=%d) failed: %s (%d), actual filename '%s'", |
| value, whence, strerror(errno), errno, fname); | value, whence, strerror(errno), errno, fname); |
| Line 228 public: | Line 301 public: |
| } | } |
| if((ssize_t)new_offset<0 || new_offset>size) | if((ssize_t)new_offset<0 || new_offset>size) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &file_name, | &file_name, |
| "seek(value=%l, whence=%d) failed: out of buffer, new_offset>size (%l>%l) or new_offset<0", | "seek(value=%l, whence=%d) failed: out of buffer, new_offset>size (%l>%l) or new_offset<0", |
| value, whence, new_offset, size); | value, whence, new_offset, size); |
| Line 303 struct JPG_Exif_IFD_entry { | Line 376 struct JPG_Exif_IFD_entry { |
| #define JPG_IFD_TAG_EXIF_OFFSET 0x8769 | #define JPG_IFD_TAG_EXIF_OFFSET 0x8769 |
| #define JPG_IFD_TAG_EXIF_GPS_OFFSET 0x8825 | |
| #define JPEG_EXIF_DATE_CHARS 20 | #define JPEG_EXIF_DATE_CHARS 20 |
| // | // |
| Line 331 static void measure_gif(const String& or | Line 406 static void measure_gif(const String& or |
| const char* buf; | const char* buf; |
| const size_t head_size=sizeof(GIF_Header); | const size_t head_size=sizeof(GIF_Header); |
| if(reader.read(buf, head_size)<head_size) | if(reader.read(buf, head_size)<head_size) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not GIF file - too small"); | "not GIF file - too small"); |
| GIF_Header *head=(GIF_Header *)buf; | GIF_Header *head=(GIF_Header *)buf; |
| if(strncmp(head->signature, "GIF", 3)!=0) | if(strncmp(head->signature, "GIF", 3)!=0) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not GIF file - wrong signature"); | "not GIF file - wrong signature"); |
| Line 382 static Value* parse_IFD_entry_formatted_ | Line 457 static Value* parse_IFD_entry_formatted_ |
| } | } |
| /* | /* |
| case 11: // single float | case 11: // single float |
| todo | @todo |
| case 12: // double float | case 12: // double float |
| todo | @todo |
| */ | */ |
| }; | }; |
| Line 392 static Value* parse_IFD_entry_formatted_ | Line 467 static Value* parse_IFD_entry_formatted_ |
| } | } |
| // date.C | // date.C |
| tm cstr_to_time_t(char *cstr); | tm cstr_to_time_t(char *, const char **); |
| static Value* parse_IFD_entry_formatted_value(bool is_big, ushort format, | static Value* parse_IFD_entry_formatted_value(bool is_big, ushort format, |
| size_t component_size, uint components_count, | size_t component_size, uint components_count, |
| Line 408 static Value* parse_IFD_entry_formatted_ | Line 483 static Value* parse_IFD_entry_formatted_ |
| strcpy(cstr_writable, cstr); | strcpy(cstr_writable, cstr); |
| try { | try { |
| return new VDate(cstr_to_time_t(cstr_writable)); | tm tmIn=cstr_to_time_t(cstr_writable, 0); |
| return new VDate(tmIn); | |
| } | } |
| catch(...) { /*ignore bad date times*/ } | catch(...) { /*ignore bad date times*/ } |
| } | } |
| if(const char* premature_zero_pos=(const char* )memchr(cstr, 0, length)) | return new VString(*new String(cstr, String::L_TAINTED)); |
| length=premature_zero_pos-cstr; | |
| return new VString(*new String(cstr, length, true/*tainted*/)); | |
| } | } |
| if(components_count==1) | if(components_count==1) |
| Line 464 static Value* parse_IFD_entry_value( | Line 538 static Value* parse_IFD_entry_value( |
| // You can get the total data byte length by multiplies | // You can get the total data byte length by multiplies |
| // a 'bytes/components' value (see above chart) by number of components stored 'NNNNNNNN' area | // a 'bytes/components' value (see above chart) by number of components stored 'NNNNNNNN' area |
| uint components_count=endian_to_uint(is_big, entry.components_count); | uint components_count=endian_to_uint(is_big, entry.components_count); |
| size_t value_size=component_size*components_count; | uint value_size=component_size*components_count; |
| // If its size is over 4bytes, 'DDDDDDDD' contains the offset to data stored address | // If its size is over 4bytes, 'DDDDDDDD' contains the offset to data stored address |
| Value* result; | Value* result; |
| Line 492 static Value* parse_IFD_entry_value( | Line 566 static Value* parse_IFD_entry_value( |
| } | } |
| static void parse_IFD(HashStringValue& hash, | static void parse_IFD(HashStringValue& hash, |
| bool is_big, Measure_reader& reader, long tiff_base); | bool is_big, Measure_reader& reader, long tiff_base, bool gps=false); |
| static void parse_IFD_entry(HashStringValue& hash, | static void parse_IFD_entry(HashStringValue& hash, |
| bool is_big, Measure_reader& reader, long tiff_base, | bool is_big, Measure_reader& reader, long tiff_base, |
| JPG_Exif_IFD_entry& entry) { | JPG_Exif_IFD_entry& entry, bool gps=false) { |
| ushort tag=endian_to_ushort(is_big, entry.tag); | ushort tag=endian_to_ushort(is_big, entry.tag); |
| if(tag==JPG_IFD_TAG_EXIF_OFFSET) { | |
| if(tag==JPG_IFD_TAG_EXIF_OFFSET || tag==JPG_IFD_TAG_EXIF_GPS_OFFSET){ | |
| long remembered=reader.tell(); | long remembered=reader.tell(); |
| { | { |
| reader.seek(tiff_base+endian_to_uint(is_big, entry.value_or_offset_to_it), SEEK_SET); | reader.seek(tiff_base+endian_to_uint(is_big, entry.value_or_offset_to_it), SEEK_SET); |
| parse_IFD(hash, is_big, reader, tiff_base); | parse_IFD(hash, is_big, reader, tiff_base, (tag==JPG_IFD_TAG_EXIF_GPS_OFFSET)?true:gps); |
| } | } |
| reader.seek(remembered, SEEK_SET); | reader.seek(remembered, SEEK_SET); |
| return; | return; |
| } | } |
| if(Value* value=parse_IFD_entry_value(is_big, reader, tiff_base, entry)) { | if(Value* value=parse_IFD_entry_value(is_big, reader, tiff_base, entry)) { |
| if(const char* name=exif_tag_value2name.get(tag)) | if(const char* name=(gps)?exif_gps_tag_value2name.get(tag):exif_tag_value2name.get(tag)) |
| hash.put(String::Body(name), value); | hash.put(name, value); |
| else | else |
| hash.put(String::Body::Format(tag), value); | hash.put(String::Body::Format(tag), value); |
| } | } |
| Line 518 static void parse_IFD_entry(HashStringVa | Line 593 static void parse_IFD_entry(HashStringVa |
| static void parse_IFD( | static void parse_IFD( |
| HashStringValue& hash, | HashStringValue& hash, |
| bool is_big, Measure_reader& reader, long tiff_base) { | bool is_big, Measure_reader& reader, long tiff_base, bool gps) { |
| const char* buf; | const char* buf; |
| if(reader.read(buf, sizeof(JPG_Exif_IFD_begin))<sizeof(JPG_Exif_IFD_begin)) | if(reader.read(buf, sizeof(JPG_Exif_IFD_begin))<sizeof(JPG_Exif_IFD_begin)) |
| return; | return; |
| Line 529 static void parse_IFD( | Line 604 static void parse_IFD( |
| if(reader.read(buf, sizeof(JPG_Exif_IFD_entry))<sizeof(JPG_Exif_IFD_entry)) | if(reader.read(buf, sizeof(JPG_Exif_IFD_entry))<sizeof(JPG_Exif_IFD_entry)) |
| return; | return; |
| parse_IFD_entry(hash, is_big, reader, tiff_base, *(JPG_Exif_IFD_entry *)buf); | parse_IFD_entry(hash, is_big, reader, tiff_base, *(JPG_Exif_IFD_entry *)buf, gps); |
| } | } |
| // then goes: LLLLLLLL Offset to next IFD [not going there] | // then goes: LLLLLLLL Offset to next IFD [not going there] |
| } | } |
| Line 537 static void parse_IFD( | Line 612 static void parse_IFD( |
| static Value* parse_exif(Measure_reader& reader, const String& origin_string) { | static Value* parse_exif(Measure_reader& reader, const String& origin_string) { |
| const char* buf; | const char* buf; |
| if(reader.read(buf, sizeof(JPG_Exif_segment_begin))<sizeof(JPG_Exif_segment_begin)) | if(reader.read(buf, sizeof(JPG_Exif_segment_begin))<sizeof(JPG_Exif_segment_begin)) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not JPEG file - can not fully read Exif segment start"); | "not JPEG file - can not fully read Exif segment start"); |
| Line 576 static void measure_jpeg(const String& o | Line 651 static void measure_jpeg(const String& o |
| const char* buf; | const char* buf; |
| const size_t prefix_size=2; | const size_t prefix_size=2; |
| if(reader.read(buf, prefix_size)<prefix_size) | if(reader.read(buf, prefix_size)<prefix_size) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not JPEG file - too small"); | "not JPEG file - too small"); |
| uchar *signature=(uchar *)buf; | uchar *signature=(uchar *)buf; |
| if(!(signature[0]==0xFF && signature[1]==0xD8)) | if(!(signature[0]==0xFF && signature[1]==0xD8)) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not JPEG file - wrong signature"); | "not JPEG file - wrong signature"); |
| Line 594 static void measure_jpeg(const String& o | Line 669 static void measure_jpeg(const String& o |
| // Verify that it's a valid segment. | // Verify that it's a valid segment. |
| if(head->marker!=MARKER) | if(head->marker!=MARKER) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not JPEG file - marker not found"); | "not JPEG file - marker not found"); |
| switch(head->code) { | switch(head->code) { |
| // http://www.ba.wakwak.com/~tsuruzoh/Computer/Digicams/exif-e.html | // http://park2.wakwak.com/~tsuruzoh/Computer/Digicams/exif-e.html |
| case CODE_EXIF: | case CODE_EXIF: |
| if(exif && !*exif) // seen .jpg with some xml under EXIF tag, after real exif block :) | if(exif && !*exif) // seen .jpg with some xml under EXIF tag, after real exif block :) |
| *exif=parse_exif(reader, origin_string); | *exif=parse_exif(reader, origin_string); |
| Line 612 static void measure_jpeg(const String& o | Line 687 static void measure_jpeg(const String& o |
| { | { |
| // Segments that contain size info | // Segments that contain size info |
| if(reader.read(buf, sizeof(JPG_Size_segment_body))<sizeof(JPG_Size_segment_body)) | if(reader.read(buf, sizeof(JPG_Size_segment_body))<sizeof(JPG_Size_segment_body)) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not JPEG file - can not fully read Size segment"); | "not JPEG file - can not fully read Size segment"); |
| JPG_Size_segment_body *body=(JPG_Size_segment_body *)buf; | JPG_Size_segment_body *body=(JPG_Size_segment_body *)buf; |
| Line 626 static void measure_jpeg(const String& o | Line 701 static void measure_jpeg(const String& o |
| reader.seek(segment_base+endian_to_ushort(true, head->length), SEEK_SET); | reader.seek(segment_base+endian_to_ushort(true, head->length), SEEK_SET); |
| } | } |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "broken JPEG file - size frame not found"); | "broken JPEG file - size frame not found"); |
| } | } |
| Line 637 static void measure_png(const String& or | Line 712 static void measure_png(const String& or |
| const char* buf; | const char* buf; |
| const size_t head_size=sizeof(PNG_Header); | const size_t head_size=sizeof(PNG_Header); |
| if(reader.read(buf, head_size)<head_size) | if(reader.read(buf, head_size)<head_size) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not PNG file - too small"); | "not PNG file - too small"); |
| PNG_Header *head=(PNG_Header *)buf; | PNG_Header *head=(PNG_Header *)buf; |
| if(strncmp(head->signature, "IHDR", 4)!=0) | if(strncmp(head->signature, "IHDR", 4)!=0) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &origin_string, | &origin_string, |
| "not PNG file - wrong signature"); | "not PNG file - wrong signature"); |
| Line 655 static void measure_png(const String& or | Line 730 static void measure_png(const String& or |
| static void measure(const String& file_name, | static void measure(const String& file_name, |
| Measure_reader& reader, ushort& width, ushort& height, Value** exif) { | Measure_reader& reader, ushort& width, ushort& height, Value** exif) { |
| const char* file_name_cstr=file_name.cstr(String::L_FILE_SPEC); | const char* file_name_cstr=file_name.taint_cstr(String::L_FILE_SPEC); |
| if(const char* cext=strrchr(file_name_cstr, '.')) { | if(const char* cext=strrchr(file_name_cstr, '.')) { |
| cext++; | cext++; |
| if(strcasecmp(cext, "GIF")==0) | if(strcasecmp(cext, "GIF")==0) |
| Line 665 static void measure(const String& file_n | Line 740 static void measure(const String& file_n |
| else if(strcasecmp(cext, "PNG")==0) | else if(strcasecmp(cext, "PNG")==0) |
| measure_png(file_name, reader, width, height); | measure_png(file_name, reader, width, height); |
| else | else |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &file_name, | &file_name, |
| "unhandled image file name extension '%s'", cext); | "unhandled image file name extension '%s'", cext); |
| } else | } else |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &file_name, | &file_name, |
| "can not determine image type - no file name extension"); | "can not determine image type - no file name extension"); |
| } | } |
| Line 710 static void _measure(Request& r, MethodP | Line 785 static void _measure(Request& r, MethodP |
| file_read_action_under_lock(r.absolute(*file_name), | file_read_action_under_lock(r.absolute(*file_name), |
| "measure", file_measure_action, &info); | "measure", file_measure_action, &info); |
| } else { | } else { |
| VFile* vfile=data.as_vfile(); | VFile* vfile=data.as_vfile(String::L_AS_IS); |
| file_name=&vfile->fields().get(name_name)->as_string(); | file_name=&vfile->fields().get(name_name)->as_string(); |
| Measure_buf_reader reader( | Measure_buf_reader reader( |
| vfile->value_ptr(), | vfile->value_ptr(), |
| Line 730 struct Attrib_info { | Line 805 struct Attrib_info { |
| }; | }; |
| #endif | #endif |
| static void append_attrib_pair( | static void append_attrib_pair( |
| HashStringValue::key_type key, | HashStringValue::key_type key, |
| HashStringValue::value_type value, | HashStringValue::value_type value, |
| Attrib_info* info) { | Attrib_info* info) { |
| // skip user-specified and internal(starting with "line-") attributes | // skip user-specified, internal(starting with "line-") attributes and border attribute with empty value |
| if(info->skip && info->skip->get(key) || key.pos("line-")==0) | if( |
| (info->skip && info->skip->get(key)) | |
| || key.pos("line-")==0 | |
| || (key=="border" && !value->is_defined()) | |
| ) | |
| return; | return; |
| // src="a.gif" width=123 ismap[=-1] | // src="a.gif" width="123" ismap[=-1] |
| *info->tag << " " << key; | *info->tag << " " << key; |
| if(value->is_string() || value->as_int()>=0) | if(value->is_string() || value->as_int()>=0) |
| *info->tag << "=\"" << value->as_string() << "\""; | *info->tag << "=\"" << value->as_string() << "\""; |
| Line 752 static void _html(Request& r, MethodPara | Line 831 static void _html(Request& r, MethodPara |
| if(params.count()) { | if(params.count()) { |
| // for backward compatibility: someday was ^html{} | // for backward compatibility: someday was ^html{} |
| Value& vattribs=r.process_to_value(params[0], | Value& vattribs=r.process_to_value(params[0], false/*don't intercept string*/); |
| false/*don't intercept string*/); | if(!vattribs.is_string()) { // allow empty |
| if(!vattribs.is_string()) // allow empty | |
| if((attribs=vattribs.get_hash())) { | if((attribs=vattribs.get_hash())) { |
| Attrib_info info={&tag, 0}; | Attrib_info info={&tag, 0}; |
| attribs->for_each(append_attrib_pair, &info); | attribs->for_each<Attrib_info*>(append_attrib_pair, &info); |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| 0, | 0, |
| "attributes must be hash"); | "attributes must be hash"); |
| } | |
| } | } |
| { | { |
| Attrib_info info={&tag, attribs}; | Attrib_info info={&tag, attribs}; |
| fields.for_each(append_attrib_pair, &info); | fields.for_each<Attrib_info*>(append_attrib_pair, &info); |
| } | } |
| tag << " />"; | tag << " />"; |
| r.write_pass_lang(tag); | r.write_pass_lang(tag); |
| Line 775 static void _html(Request& r, MethodPara | Line 854 static void _html(Request& r, MethodPara |
| /// @test wrap FILE to auto-object | /// @test wrap FILE to auto-object |
| static gdImage* load(Request& r, | static gdImage* load(Request& r, |
| const String& file_name){ | const String& file_name){ |
| const char* file_name_cstr=r.absolute(file_name).cstr(String::L_FILE_SPEC); | const char* file_name_cstr=r.absolute(file_name).taint_cstr(String::L_FILE_SPEC); |
| if(FILE *f=fopen(file_name_cstr, "rb")) { | if(FILE *f=fopen(file_name_cstr, "rb")) { |
| gdImage* image=new gdImage; | gdImage* image=new gdImage; |
| bool ok=image->CreateFromGif(f); | bool ok=image->CreateFromGif(f); |
| fclose(f); | fclose(f); |
| if(!ok) | if(!ok) |
| throw Exception("image.format", | throw Exception(IMAGE_FORMAT, |
| &file_name, | &file_name, |
| "is not in GIF format"); | "is not in GIF format"); |
| return image; | return image; |
| Line 794 static gdImage* load(Request& r, | Line 873 static gdImage* load(Request& r, |
| static void _load(Request& r, MethodParams& params) { | static void _load(Request& r, MethodParams& params) { |
| const String& file_name=params.as_string(0, "file name must not be code"); | const String& file_name=params.as_string(0, FILE_NAME_MUST_NOT_BE_CODE); |
| gdImage* image=load(r, file_name); | gdImage* image=load(r, file_name); |
| GET_SELF(r, VImage).set(&file_name, image->SX(), image->SY(), image); | GET_SELF(r, VImage).set(&file_name, image->SX(), image->SY(), image); |
| Line 815 static void _create(Request& r, MethodPa | Line 894 static void _create(Request& r, MethodPa |
| static void _gif(Request& r, MethodParams& params) { | static void _gif(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| const String *file_name=0; | const String *file_name=params.count()>0?¶ms.as_string(0, FILE_NAME_MUST_BE_STRING):0; |
| if(params.count()>0) | |
| file_name=¶ms.as_string(0, "file name must be string"); | |
| gdBuf buf=image.Gif(); | gdBuf buf=image.Gif(); |
| VFile& vfile=*new VFile; | VFile& vfile=*new VFile; |
| Value* content_type=new VString(*new String("image/gif")); | |
| vfile.set(false/*not tainted*/, | vfile.set_binary(false/*not tainted*/, (const char *)buf.ptr, buf.size, file_name, new VString(*new String("image/gif"))); |
| (const char*)buf.ptr, buf.size, | |
| file_name? file_name->cstr(String::L_FILE_SPEC): 0, | |
| content_type); | |
| r.write_no_lang(vfile); | r.write_no_lang(vfile); |
| } | } |
| Line 885 static void add_point(Table::element_typ | Line 959 static void add_point(Table::element_typ |
| (*p)++; | (*p)++; |
| } | } |
| #endif | #endif |
| #ifndef DOXYGEN | |
| static void add_point(int x, int y, | |
| gdImage::Point **p) { | |
| (**p).x=x; | |
| (**p).y=y; | |
| (*p)++; | |
| } | |
| #endif | |
| static void _replace(Request& r, MethodParams& params) { | static void _replace(Request& r, MethodParams& params) { |
| int src_color=params.as_int(0, "src color must be int", r); | |
| int dest_color=params.as_int(1, "dest color must be int", r); | |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(2, "coordinates must not be code").get_table(); | gdImage::Point* all_p=0; |
| if(!table) | size_t count=0; |
| throw Exception(0, | if(params.count() == 3){ |
| 0, | Table* table=params.as_table(2, "coordinates"); |
| "coordinates must be table"); | count=table->count(); |
| all_p=new(PointerFreeGC) gdImage::Point[count]; | |
| gdImage::Point* add_p=all_p; | |
| table->for_each(add_point, &add_p); | |
| } else { | |
| int max_x=image.SX()-1; | |
| int max_y=image.SY()-1; | |
| if(max_x > 0 && max_y > 0){ | |
| count=4; | |
| all_p=new(PointerFreeGC) gdImage::Point[count]; | |
| gdImage::Point* add_p=all_p; | |
| add_point(0, 0, &add_p); | |
| add_point(max_x, 0, &add_p); | |
| add_point(max_x, max_y, &add_p); | |
| add_point(0, max_y, &add_p); | |
| } | |
| } | |
| gdImage::Point *all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | if(count) |
| gdImage::Point *add_p=all_p; | image.FilledPolygonReplaceColor(all_p, count, image.Color(src_color), image.Color(dest_color)); |
| table->for_each(add_point, &add_p); | |
| image.FilledPolygonReplaceColor(all_p, table->count(), | |
| image.Color(params.as_int(0, "src color must be int", r)), | |
| image.Color(params.as_int(1, "dest color must be int", r))); | |
| } | } |
| static void _polyline(Request& r, MethodParams& params) { | static void _polyline(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(1, "coordinates must not be code").get_table(); | Table* table=params.as_table(1, "coordinates"); |
| if(!table) | |
| throw Exception(0, | |
| 0, | |
| "coordinates must be table"); | |
| gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| Line 922 static void _polyline(Request& r, Method | Line 1015 static void _polyline(Request& r, Method |
| static void _polygon(Request& r, MethodParams& params) { | static void _polygon(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(1, "coordinates must not be code").get_table(); | Table* table=(Table*)params.as_table(1, "coordinates"); |
| if(!table) | |
| throw Exception(0, | |
| 0, | |
| "coordinates must be table"); | |
| gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| Line 938 static void _polygon(Request& r, MethodP | Line 1027 static void _polygon(Request& r, MethodP |
| static void _polybar(Request& r, MethodParams& params) { | static void _polybar(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(1, "coordinates must not be code").get_table(); | Table* table=(Table*)params.as_table(1, "coordinates"); |
| if(!table) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "coordinates must be table"); | |
| gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| Line 957 static void _polybar(Request& r, MethodP | Line 1042 static void _polybar(Request& r, MethodP |
| // Font class | // Font class |
| const int Font::letter_spacing=1; | Font::Font( |
| Charset& asource_charset, | |
| Font::Font(//, | |
| const String& aalphabet, | const String& aalphabet, |
| gdImage* aifont, int aheight, int amonospace, int aspacebarspace): | gdImage* aifont, int aheight, int amonospace, int aspacebarspace, int aletterspacing): |
| height(aheight), monospace(amonospace), spacebarspace(aspacebarspace), | fsource_charset(asource_charset), |
| height(aheight), | |
| monospace(amonospace), | |
| spacebarspace(aspacebarspace), | |
| letterspacing(aletterspacing), | |
| ifont(aifont), | ifont(aifont), |
| alphabet(aalphabet) { | alphabet(aalphabet) { |
| if(fsource_charset.isUTF8()){ | |
| size_t index=0; | |
| for(UTF8_string_iterator i(alphabet); i.has_next(); ) | |
| fletter2index.put_dont_replace(i.next(), index++); | |
| } | |
| } | } |
| /* ******************************** char ********************************** */ | /* ******************************** char ********************************** */ |
| Line 974 size_t Font::index_of(char ch) { | Line 1068 size_t Font::index_of(char ch) { |
| return alphabet.pos(ch); | return alphabet.pos(ch); |
| } | } |
| size_t Font::index_of(XMLCh ch) { | |
| if(ch==' ') return STRING_NOT_FOUND; | |
| return fletter2index.get(ch); | |
| } | |
| int Font::index_width(size_t index) { | int Font::index_width(size_t index) { |
| if(index==STRING_NOT_FOUND) | if(index==STRING_NOT_FOUND) |
| return spacebarspace; | return spacebarspace; |
| Line 994 void Font::index_display(gdImage& image, | Line 1093 void Font::index_display(gdImage& image, |
| /* ******************************** string ********************************** */ | /* ******************************** string ********************************** */ |
| int Font::step_width(int index) { | int Font::step_width(int index) { |
| return letter_spacing + (monospace ? monospace : index_width(index)); | return letterspacing + (monospace ? monospace : index_width(index)); |
| } | } |
| // counts trailing letter_spacing, consider this OK. useful for contiuations | // counts trailing letter_spacing, consider this OK. useful for contiuations |
| int Font::string_width(const String& s){ | int Font::string_width(const String& s){ |
| const char* cstr=s.cstr(); | const char* cstr=s.cstr(); |
| int result=0; | int result=0; |
| for(const char* current=cstr; *current; current++) | |
| result+=step_width(index_of(*current)); | if(fsource_charset.isUTF8()){ |
| for(UTF8_string_iterator i(s); i.has_next(); ) | |
| result+=step_width(index_of(i.next())); | |
| } else { | |
| for(const char* current=cstr; *current; current++) | |
| result+=step_width(index_of(*current)); | |
| } | |
| return result; | return result; |
| } | } |
| void Font::string_display(gdImage& image, int x, int y, const String& s){ | void Font::string_display(gdImage& image, int x, int y, const String& s){ |
| const char* cstr=s.cstr(); | const char* cstr=s.cstr(); |
| for(const char* current=cstr; *current; current++) { | |
| size_t index=index_of(*current); | if(fsource_charset.isUTF8()){ |
| index_display(image, x, y, index); | for(UTF8_string_iterator i(s); i.has_next(); ){ |
| x+=step_width(index); | size_t index=index_of(i.next()); |
| index_display(image, x, y, index); | |
| x+=step_width(index); | |
| } | |
| } else { | |
| for(const char* current=cstr; *current; current++) { | |
| size_t index=index_of(*current); | |
| index_display(image, x, y, index); | |
| x+=step_width(index); | |
| } | |
| } | } |
| } | } |
| Line 1020 void Font::string_display(gdImage& image | Line 1135 void Font::string_display(gdImage& image |
| static void _font(Request& r, MethodParams& params) { | static void _font(Request& r, MethodParams& params) { |
| const String& alphabet=params.as_string(0, "alphabet must not be code"); | const String& alphabet=params.as_string(0, "alphabet must not be code"); |
| gdImage* image=load(r, params.as_string(1, "file_name must not be code")); | size_t alphabet_length=alphabet.length(r.charsets.source()); |
| int spacebar_width=params.as_int(2, "spacebar_width must be int", r); | if(!alphabet_length) |
| int monospace_width; | throw Exception(PARSER_RUNTIME, |
| if(params.count()>3) { | |
| monospace_width=params.as_int(3, "monospace_width must be int", r); | |
| if(!monospace_width) | |
| monospace_width=image->SX(); | |
| } else | |
| monospace_width=0; | |
| if(!alphabet.length()) | |
| throw Exception("parser.runtime", | |
| 0, | 0, |
| "alphabet must not be empty"); | "alphabet must not be empty"); |
| if(int remainder=image->SY() % alphabet.length()) | gdImage* image=load(r, params.as_string(1, FILE_NAME_MUST_NOT_BE_CODE)); |
| throw Exception("parser.runtime", | |
| int spacebar_width=image->SX(); | |
| int monospace_width=0; // proportional | |
| int letter_spacing=1; | |
| if(params.count()>2){ | |
| if(HashStringValue* options=params[2].get_hash()){ | |
| // third option is hash | |
| if(params.count()>3) | |
| throw Exception(PARSER_RUNTIME, 0, "too many params were specified"); | |
| int valid_options=0; | |
| if(Value* vspacebar_width=options->get(spacebar_width_name)){ | |
| valid_options++; | |
| spacebar_width=r.process_to_value(*vspacebar_width).as_int(); | |
| } | |
| if(Value* vmonospace_width=options->get(monospace_width_name)){ | |
| valid_options++; | |
| monospace_width=r.process_to_value(*vmonospace_width).as_int(); | |
| if(!monospace_width) | |
| monospace_width=image->SX(); | |
| } | |
| if(Value* vletter_spacing=options->get(letter_spacing_name)){ | |
| valid_options++; | |
| letter_spacing=r.process_to_value(*vletter_spacing).as_int(); | |
| } | |
| if(valid_options!=options->count()) | |
| throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); | |
| } else { | |
| // backward | |
| spacebar_width=params.as_int(2, "param must be int or hash", r); | |
| if(params.count()>3) { | |
| monospace_width=params.as_int(3, "monospace_width must be int", r); | |
| if(!monospace_width) | |
| monospace_width=image->SX(); | |
| } | |
| } | |
| } | |
| if(int remainder=image->SY() % alphabet_length) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | 0, |
| "font-file height(%d) not divisable by alphabet size(%d), remainder=%d", | "font-file height(%d) not divisable by alphabet size(%d), remainder=%d", |
| image->SY(), alphabet.length(), remainder); | image->SY(), alphabet_length, remainder); |
| GET_SELF(r, VImage).set_font(new Font( | GET_SELF(r, VImage).set_font(new Font( |
| r.charsets.source(), | |
| alphabet, | alphabet, |
| image, | image, |
| image->SY() / alphabet.length(), monospace_width, spacebar_width)); | image->SY() / alphabet_length, monospace_width, spacebar_width, letter_spacing)); |
| } | } |
| static void _text(Request& r, MethodParams& params) { | static void _text(Request& r, MethodParams& params) { |
| Line 1106 static void _circle(Request& r, MethodPa | Line 1251 static void _circle(Request& r, MethodPa |
| gdImage& as_image(MethodParams& params, int index, const char* msg) { | gdImage& as_image(MethodParams& params, int index, const char* msg) { |
| Value& value=params.as_no_junction(index, msg); | Value& value=params.as_no_junction(index, msg); |
| if(Value* vimage=value.as(VIMAGE_TYPE, false)) { | if(Value* vimage=value.as(VIMAGE_TYPE)) { |
| return static_cast<VImage *>(vimage)->image(); | return static_cast<VImage *>(vimage)->image(); |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| 0, | 0, |
| msg); | msg); |
| } | } |
| Line 1184 MImage::MImage(): Methoded("image") { | Line 1329 MImage::MImage(): Methoded("image") { |
| add_native_method("bar", Method::CT_DYNAMIC, _bar, 5, 5); | add_native_method("bar", Method::CT_DYNAMIC, _bar, 5, 5); |
| // ^image.replace(color-source;color-dest)[table x:y] | // ^image.replace(color-source;color-dest)[table x:y] |
| add_native_method("replace", Method::CT_DYNAMIC, _replace, 3, 3); | // ^image.replace(color-source;color-dest) |
| add_native_method("replace", Method::CT_DYNAMIC, _replace, 2, 3); | |
| // ^image.polyline(color)[table x:y] | // ^image.polyline(color)[table x:y] |
| add_native_method("polyline", Method::CT_DYNAMIC, _polyline, 2, 2); | add_native_method("polyline", Method::CT_DYNAMIC, _polyline, 2, 2); |
| Line 1195 MImage::MImage(): Methoded("image") { | Line 1341 MImage::MImage(): Methoded("image") { |
| // ^image.polybar(color)[table x:y] | // ^image.polybar(color)[table x:y] |
| add_native_method("polybar", Method::CT_DYNAMIC, _polybar, 2, 2); | add_native_method("polybar", Method::CT_DYNAMIC, _polybar, 2, 2); |
| // ^image.font[alPHAbet;font-file-name.gif](spacebar_width) | // ^image.font[alPHAbet;font-file-name.gif] |
| // ^image.font[alPHAbet;font-file-name.gif](spacebar_width;width) | // ^image.font[alPHAbet;font-file-name.gif](spacebar_width) |
| add_native_method("font", Method::CT_DYNAMIC, _font, 3, 4); | // ^image.font[alPHAbet;font-file-name.gif](spacebar_width;letter_width) |
| // ^image.font[alPHAbet;font-file-name.gif][$.space-width(.) $.letter-width(.) $.letter-space(.)] | |
| add_native_method("font", Method::CT_DYNAMIC, _font, 2, 4); | |
| // ^image.text(x;y)[text] | // ^image.text(x;y)[text] |
| add_native_method("text", Method::CT_DYNAMIC, _text, 3, 3); | add_native_method("text", Method::CT_DYNAMIC, _text, 3, 3); |
| // ^image.ngth[text] | // ^image.length[text] |
| add_native_method("length", Method::CT_DYNAMIC, _length, 1, 1); | add_native_method("length", Method::CT_DYNAMIC, _length, 1, 1); |
| // ^image.arc(center x;center y;width;height;start in degrees;end in degrees;color) | // ^image.arc(center x;center y;width;height;start in degrees;end in degrees;color) |