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| version 1.86, 2002/11/28 09:12:27 | version 1.109, 2004/03/01 13:33:11 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b image parser class. | Parser: @b image parser class. |
| Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) | Copyright(c) 2001-2004 ArtLebedev Group (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* IDENT_IMAGE_C="$Date$"; | 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 |
| Line 18 static const char* IDENT_IMAGE_C="$Date$ | Line 18 static const char* IDENT_IMAGE_C="$Date$ |
| #include "pa_config_includes.h" | #include "pa_config_includes.h" |
| #include "pa_vmethod_frame.h" | |
| #include "gif.h" | #include "gif.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" |
| #include "pa_vimage.h" | #include "pa_vimage.h" |
| #include "pa_vdate.h" | |
| #include "pa_table.h" | |
| // class | // class |
| class MImage : public Methoded { | class MImage: public Methoded { |
| public: // VStateless_class | public: // VStateless_class |
| Value *create_new_value(Pool& pool) { return new(pool) VImage(pool); } | Value* create_new_value(Pool&) { return new VImage(); } |
| public: | public: |
| MImage(Pool& pool); | MImage(); |
| public: // Methoded | public: // Methoded |
| bool used_directly() { return true; } | bool used_directly() { return true; } |
| }; | }; |
| // globals | |
| DECLARE_CLASS_VAR(image, new MImage, 0); | |
| // helpers | // helpers |
| /// value of exif tag -> it's value | |
| class EXIF_tag_value2name: public Hash<int, const char*> { | |
| public: | |
| EXIF_tag_value2name() { | |
| // image JPEG Exif | |
| #define EXIF_TAG(tag, name) \ | |
| put(tag, #name); | |
| // Tags used by IFD0 (main image) | |
| EXIF_TAG(0x010e, ImageDescription); | |
| EXIF_TAG(0x010f, Make); | |
| EXIF_TAG(0x0110, Model); | |
| EXIF_TAG(0x0112, Orientation); | |
| EXIF_TAG(0x011a, XResolution); | |
| EXIF_TAG(0x011b, YResolution); | |
| EXIF_TAG(0x0128, ResolutionUnit); | |
| EXIF_TAG(0x0131, Software); | |
| EXIF_TAG(0x0132, DateTime); | |
| EXIF_TAG(0x013e, WhitePoint); | |
| EXIF_TAG(0x013f, PrimaryChromaticities); | |
| EXIF_TAG(0x0211, YCbCrCoefficients); | |
| EXIF_TAG(0x0213, YCbCrPositioning); | |
| EXIF_TAG(0x0214, ReferenceBlackWhite); | |
| EXIF_TAG(0x8298, Copyright); | |
| EXIF_TAG(0x8769, ExifOffset); | |
| // Tags used by Exif SubIFD | |
| EXIF_TAG(0x829a, ExposureTime); | |
| EXIF_TAG(0x829d, FNumber); | |
| EXIF_TAG(0x8822, ExposureProgram); | |
| EXIF_TAG(0x8827, ISOSpeedRatings); | |
| EXIF_TAG(0x9000, ExifVersion); | |
| EXIF_TAG(0x9003, DateTimeOriginal); | |
| EXIF_TAG(0x9004, DateTimeDigitized); | |
| EXIF_TAG(0x9101, ComponentsConfiguration); | |
| EXIF_TAG(0x9102, CompressedBitsPerPixel); | |
| EXIF_TAG(0x9201, ShutterSpeedValue); | |
| EXIF_TAG(0x9202, ApertureValue); | |
| EXIF_TAG(0x9203, BrightnessValue); | |
| EXIF_TAG(0x9204, ExposureBiasValue); | |
| EXIF_TAG(0x9205, MaxApertureValue); | |
| EXIF_TAG(0x9206, SubjectDistance); | |
| EXIF_TAG(0x9207, MeteringMode); | |
| EXIF_TAG(0x9208, LightSource); | |
| EXIF_TAG(0x9209, Flash); | |
| EXIF_TAG(0x920a, FocalLength); | |
| EXIF_TAG(0x927c, MakerNote); | |
| EXIF_TAG(0x9286, UserComment); | |
| EXIF_TAG(0x9290, SubsecTime); | |
| EXIF_TAG(0x9291, SubsecTimeOriginal); | |
| EXIF_TAG(0x9292, SubsecTimeDigitized); | |
| EXIF_TAG(0xa000, FlashPixVersion); | |
| EXIF_TAG(0xa001, ColorSpace); | |
| EXIF_TAG(0xa002, ExifImageWidth); | |
| EXIF_TAG(0xa003, ExifImageHeight); | |
| EXIF_TAG(0xa004, RelatedSoundFile); | |
| EXIF_TAG(0xa005, ExifInteroperabilityOffset); | |
| EXIF_TAG(0xa20e, FocalPlaneXResolution); | |
| EXIF_TAG(0xa20f, FocalPlaneYResolution); | |
| EXIF_TAG(0xa210, FocalPlaneResolutionUnit); | |
| EXIF_TAG(0xa215, ExposureIndex); | |
| EXIF_TAG(0xa217, SensingMethod); | |
| EXIF_TAG(0xa300, FileSource); | |
| EXIF_TAG(0xa301, SceneType); | |
| EXIF_TAG(0xa302, CFAPattern); | |
| // Misc Tags | |
| EXIF_TAG(0x00fe, NewSubfileType); | |
| EXIF_TAG(0x00ff, SubfileType); | |
| EXIF_TAG(0x012d, TransferFunction); | |
| EXIF_TAG(0x013b, Artist); | |
| EXIF_TAG(0x013d, Predictor); | |
| EXIF_TAG(0x0142, TileWidth); | |
| EXIF_TAG(0x0143, TileLength); | |
| EXIF_TAG(0x0144, TileOffsets); | |
| EXIF_TAG(0x0145, TileByteCounts); | |
| EXIF_TAG(0x014a, SubIFDs); | |
| EXIF_TAG(0x015b, JPEGTables); | |
| EXIF_TAG(0x828d, CFARepeatPatternDim); | |
| EXIF_TAG(0x828e, CFAPattern); | |
| EXIF_TAG(0x828f, BatteryLevel); | |
| EXIF_TAG(0x83bb, IPTC/NAA); | |
| EXIF_TAG(0x8773, InterColorProfile); | |
| EXIF_TAG(0x8824, SpectralSensitivity); | |
| EXIF_TAG(0x8825, GPSInfo); | |
| EXIF_TAG(0x8828, OECF); | |
| EXIF_TAG(0x8829, Interlace); | |
| EXIF_TAG(0x882a, TimeZoneOffset); | |
| EXIF_TAG(0x882b, SelfTimerMode); | |
| EXIF_TAG(0x920b, FlashEnergy); | |
| EXIF_TAG(0x920c, SpatialFrequencyResponse); | |
| EXIF_TAG(0x920d, Noise); | |
| EXIF_TAG(0x9211, ImageNumber); | |
| EXIF_TAG(0x9212, SecurityClassification); | |
| EXIF_TAG(0x9213, ImageHistory); | |
| EXIF_TAG(0x9214, SubjectLocation); | |
| EXIF_TAG(0x9215, ExposureIndex); | |
| EXIF_TAG(0x9216, TIFF/EPStandardID); | |
| EXIF_TAG(0xa20b, FlashEnergy); | |
| EXIF_TAG(0xa20c, SpatialFrequencyResponse); | |
| EXIF_TAG(0xa214, SubjectLocation); | |
| #undef EXIF_TAG | |
| } | |
| } exif_tag_value2name; | |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| class Measure_reader { | class Measure_reader { |
| public: | public: |
| virtual size_t read(const void *&buf, size_t limit)=0; | virtual size_t read(const char* &buf, size_t limit)=0; |
| virtual void seek(long value, int whence)=0; | virtual void seek(long value, int whence)=0; |
| virtual long tell()=0; | virtual long tell()=0; |
| }; | }; |
| class Measure_file_reader: public Measure_reader { | class Measure_file_reader: public Measure_reader { |
| const String& file_name; const char* fname; | |
| int f; | |
| public: | public: |
| Measure_file_reader(Pool& apool, int af, const String& afile_name, const char *afname): | Measure_file_reader(int af, const String& afile_name, const char* afname): |
| pool(apool), file_name(afile_name), fname(afname), f(af) { | file_name(afile_name), fname(afname), f(af) { |
| } | } |
| /*override*/size_t read(const void *&abuf, size_t limit) { | override size_t read(const char* &abuf, size_t limit) { |
| if(limit==0) | if(limit==0) |
| return 0; | return 0; |
| void *lbuf=pool.malloc(limit); | char* lbuf=new(PointerFreeGC) char[limit]; |
| size_t read_size=(size_t)::read(f, lbuf, limit); abuf=lbuf; | size_t read_size=(size_t)::read(f, lbuf, limit); abuf=lbuf; |
| if(ssize_t(read_size)<0 || read_size>limit) | if(ssize_t(read_size)<0 || read_size>limit) |
| throw Exception(0, | throw Exception(0, |
| &file_name, | &file_name, |
| "measure failed: actually read %lu bytes count not in [0..%lu] valid range", | "measure failed: actually read %u bytes count not in [0..%u] valid range", |
| read_size, limit); | 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("file.seek", | 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); |
| } | } |
| /*override*/long tell() { return lseek(f, 0, SEEK_CUR); } | override long tell() { return lseek(f, 0, SEEK_CUR); } |
| private: | |
| Pool& pool; | |
| const String& file_name; const char *fname; | |
| int f; | |
| }; | }; |
| class Measure_buf_reader: public Measure_reader { | class Measure_buf_reader: public Measure_reader { |
| const char* buf; size_t size; | |
| const String& file_name; | |
| size_t offset; | |
| public: | public: |
| Measure_buf_reader(const void *abuf, size_t asize, const String& afile_name): | Measure_buf_reader(const char* abuf, size_t asize, const String& afile_name): |
| buf(abuf), size(asize), file_name(afile_name), offset(0) { | buf(abuf), size(asize), file_name(afile_name), offset(0) { |
| } | } |
| /*override*/size_t read(const void *&abuf, size_t limit) { | override size_t read(const char* &abuf, size_t limit) { |
| size_t to_read=min(limit, size-offset); | size_t to_read=min(limit, size-offset); |
| abuf=(const char*)buf+offset; | abuf=buf+offset; |
| offset+=to_read; | offset+=to_read; |
| return to_read; | return to_read; |
| } | } |
| /*override*/void seek(long value, int whence) { | override void seek(long value, int whence) { |
| size_t new_offset; | size_t new_offset; |
| switch(whence) { | switch(whence) { |
| case SEEK_CUR: new_offset=offset+value; break; | case SEEK_CUR: new_offset=offset+value; break; |
| case SEEK_SET: new_offset=(size_t)value; break; | case SEEK_SET: new_offset=(size_t)value; break; |
| default: throw Exception("file.seek", 0, "whence #%d not supported", 0, whence); break; | default: |
| throw Exception(0, | |
| 0, | |
| "whence #%d not supported", 0, whence); | |
| break; // never | |
| } | } |
| if((ssize_t)new_offset<0 || new_offset>size) | if((ssize_t)new_offset<0 || new_offset>size) |
| throw Exception("file.seek", | 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); |
| offset=new_offset; | offset=new_offset; |
| } | } |
| /*override*/long tell() { return offset; } | override long tell() { return offset; } |
| private: | |
| const void *buf; size_t size; | |
| const String& file_name; | |
| size_t offset; | |
| }; | }; |
| #endif | #endif |
| Line 163 struct JPG_Size_segment_body { | Line 277 struct JPG_Size_segment_body { |
| }; | }; |
| /// JPEG frame header | /// JPEG frame header |
| struct JPG_Exif_segment_start { | struct JPG_Exif_segment_begin { |
| char signature[6]; // Exif\0\0 | char signature[6]; // Exif\0\0 |
| }; | }; |
| Line 175 struct JPG_Exif_TIFF_header { | Line 289 struct JPG_Exif_TIFF_header { |
| }; | }; |
| // JPEG Exif IFD start | // JPEG Exif IFD start |
| struct JPG_Exif_IFD_start { | struct JPG_Exif_IFD_begin { |
| uchar directory_entry_count[2]; // the number of directory entry contains in this IFD | uchar directory_entry_count[2]; // the number of directory entry contains in this IFD |
| }; | }; |
| Line 189 struct JPG_Exif_IFD_entry { | Line 303 struct JPG_Exif_IFD_entry { |
| #define JPG_IFD_TAG_EXIF_OFFSET 0x8769 | #define JPG_IFD_TAG_EXIF_OFFSET 0x8769 |
| #define JPEG_EXIF_DATE_CHARS 20 | |
| // | // |
| inline ushort x_endian_to_ushort(uchar b0, uchar b1) { | inline ushort x_endian_to_ushort(uchar b0, uchar b1) { |
| Line 209 inline uint endian_to_uint(bool is_big, | Line 325 inline uint endian_to_uint(bool is_big, |
| x_endian_to_uint(b[0], b[1], b[2], b[3]); | x_endian_to_uint(b[0], b[1], b[2], b[3]); |
| } | } |
| static void measure_gif(Pool& pool, const String *origin_string, | static void measure_gif(const String& origin_string, |
| Measure_reader& reader, ushort& width, ushort& height) { | Measure_reader& reader, ushort& width, ushort& height) { |
| const void *buf; | const char* buf; |
| const int 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"); |
| width=endian_to_ushort(false, head->width); | width=endian_to_ushort(false, head->width); |
| height=endian_to_ushort(false, head->height); | height=endian_to_ushort(false, head->height); |
| } | } |
| static Value *parse_IFD_entry_formatted_one_value(Pool& pool, | static Value* parse_IFD_entry_formatted_one_value( |
| bool is_big, | bool is_big, |
| ushort format, | ushort format, |
| size_t component_size, | size_t component_size, |
| const uchar *value) { | const uchar *value) { |
| switch(format) { | switch(format) { |
| case 1: // unsigned byte | case 1: // unsigned byte |
| return new(pool) VInt(pool, (uchar)value[0]); | return new VInt((uchar)value[0]); |
| case 3: // unsigned short | case 3: // unsigned short |
| return new(pool) VInt(pool, endian_to_ushort(is_big, value)); | return new VInt(endian_to_ushort(is_big, value)); |
| case 4: // unsigned long | case 4: // unsigned long |
| // 'double' because parser's Int is signed | // 'double' because parser's Int is signed |
| return new(pool) VDouble(pool, endian_to_uint(is_big, value)); | return new VDouble(endian_to_uint(is_big, value)); |
| case 5: // unsigned rational | case 5: // unsigned rational |
| { | { |
| uint numerator=endian_to_uint(is_big, value); value+=component_size/2; | uint numerator=endian_to_uint(is_big, value); value+=component_size/2; |
| uint denominator=endian_to_uint(is_big, value); | uint denominator=endian_to_uint(is_big, value); |
| if(!denominator) | if(!denominator) |
| return 0; | return 0; |
| return new(pool) VDouble(pool, ((double)numerator)/denominator); | return new VDouble(((double)numerator)/denominator); |
| } | } |
| case 6: // signed byte | case 6: // signed byte |
| return new(pool) VInt(pool, (signed char)value[0]); | return new VInt((signed char)value[0]); |
| case 8: // signed short | case 8: // signed short |
| return new(pool) VInt(pool, (signed short)endian_to_ushort(is_big, value)); | return new VInt((signed short)endian_to_ushort(is_big, value)); |
| case 9: // signed long | case 9: // signed long |
| return new(pool) VInt(pool, (signed int)endian_to_uint(is_big, value)); | return new VInt((signed int)endian_to_uint(is_big, value)); |
| case 10: // signed rational | case 10: // signed rational |
| { | { |
| signed int numerator=(signed int)endian_to_uint(is_big, value); value+=component_size/2; | signed int numerator=(signed int)endian_to_uint(is_big, value); value+=component_size/2; |
| uint denominator=endian_to_uint(is_big, value); | uint denominator=endian_to_uint(is_big, value); |
| if(!denominator) | if(!denominator) |
| return 0; | return 0; |
| return new(pool) VDouble(pool, numerator/denominator); | return new VDouble(numerator/denominator); |
| } | } |
| /* | /* |
| case 11: // single float | case 11: // single float |
| Line 275 static Value *parse_IFD_entry_formatted_ | Line 391 static Value *parse_IFD_entry_formatted_ |
| return 0; | return 0; |
| } | } |
| static Value *parse_IFD_entry_formatted_value(Pool& pool, | // date.C |
| bool is_big, ushort format, | tm cstr_to_time_t(char *cstr); |
| size_t component_size, uint components_count, | |
| const uchar *value) { | static Value* parse_IFD_entry_formatted_value(bool is_big, ushort format, |
| size_t component_size, uint components_count, | |
| const uchar *value) { | |
| if(format==2) { // ascii string, exception: the only type with varying size | if(format==2) { // ascii string, exception: the only type with varying size |
| const char *cstr=(const char *)value; | const char* cstr=(const char* )value; |
| size_t size=components_count; | size_t length=components_count; |
| if(const char *premature_zero_pos=(const char *)memchr(cstr, 0, size)) | // Data format is "YYYY:MM:DD HH:MM:SS"+0x00, total 20bytes |
| size=premature_zero_pos-cstr; | if(length==JPEG_EXIF_DATE_CHARS |
| return new(pool) VString(*new(pool) String(pool, cstr, size, true/*tainted*/)); | && isdigit(cstr[0]) |
| && cstr[length-1]==0) { | |
| char cstr_writable[JPEG_EXIF_DATE_CHARS]; | |
| strcpy(cstr_writable, cstr); | |
| try { | |
| return new VDate(cstr_to_time_t(cstr_writable)); | |
| } | |
| catch(...) { /*ignore bad date times*/ } | |
| } | |
| if(const char* premature_zero_pos=(const char* )memchr(cstr, 0, length)) | |
| length=premature_zero_pos-cstr; | |
| return new VString(*new String(cstr, length, true/*tainted*/)); | |
| } | } |
| if(components_count==1) | if(components_count==1) |
| return parse_IFD_entry_formatted_one_value(pool, is_big, format, component_size, value); | return parse_IFD_entry_formatted_one_value(is_big, format, component_size, value); |
| VHash& result=*new(pool) VHash(pool); | VHash* result=new VHash; |
| Hash& hash=result.hash(0); | HashStringValue& hash=result->hash(); |
| for(uint i=0; i<components_count; i++, value+=component_size) { | for(uint i=0; i<components_count; i++, value+=component_size) { |
| String& skey=*new(pool) String(pool); | hash.put( |
| { | String::Body::Format(i), |
| char *buf=(char *)pool.malloc(MAX_NUMBER); | parse_IFD_entry_formatted_one_value(is_big, format, component_size, value)); |
| snprintf(buf, MAX_NUMBER, "%d", i); | |
| skey << buf; | |
| } | |
| hash.put(skey, parse_IFD_entry_formatted_one_value(pool, is_big, format, component_size, value)); | |
| } | } |
| return &result; | return result; |
| } | } |
| static Value *parse_IFD_entry_value(Pool& pool, | static Value* parse_IFD_entry_value( |
| 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) { |
| size_t format2component_size[]={ | size_t format2component_size[]={ |
| Line 339 static Value *parse_IFD_entry_value(Pool | Line 466 static Value *parse_IFD_entry_value(Pool |
| 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; | size_t 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; |
| if(value_size<=4) | if(value_size<=4) |
| result=parse_IFD_entry_formatted_value(pool, | result=parse_IFD_entry_formatted_value( |
| is_big, format, | is_big, format, |
| component_size, components_count, | component_size, components_count, |
| entry.value_or_offset_to_it); | entry.value_or_offset_to_it); |
| Line 350 static Value *parse_IFD_entry_value(Pool | Line 477 static Value *parse_IFD_entry_value(Pool |
| 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); |
| const void *value; | const char* value; |
| if(reader.read(value, value_size)<sizeof(value_size)) | if(reader.read(value, value_size)<sizeof(value_size)) |
| return 0; | return 0; |
| result=parse_IFD_entry_formatted_value(pool, | result=parse_IFD_entry_formatted_value( |
| is_big, format, | is_big, format, |
| component_size, components_count, | component_size, components_count, |
| (const uchar*)value); | (const uchar*)value); |
| Line 364 static Value *parse_IFD_entry_value(Pool | Line 491 static Value *parse_IFD_entry_value(Pool |
| return result; | return result; |
| } | } |
| static void parse_IFD(Pool& pool, | static void parse_IFD(HashStringValue& hash, |
| Hash& hash, | bool is_big, Measure_reader& reader, long tiff_base); |
| bool is_big, Measure_reader& reader, long tiff_base); | |
| static void parse_IFD_entry(HashStringValue& hash, | |
| static void parse_IFD_entry(Pool& pool, Hash& 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) { | |
| 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) { |
| 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(pool, hash, is_big, reader, tiff_base); | parse_IFD(hash, is_big, reader, tiff_base); |
| } | } |
| reader.seek(remembered, SEEK_SET); | reader.seek(remembered, SEEK_SET); |
| return; | return; |
| } | } |
| if(Value *value=parse_IFD_entry_value(pool, is_big, reader, tiff_base, entry)) { | if(Value* value=parse_IFD_entry_value(is_big, reader, tiff_base, entry)) { |
| String& skey=*new(pool) String(pool); | if(const char* name=exif_tag_value2name.get(tag)) |
| { | hash.put(String::Body(name), value); |
| char *buf=(char *)pool.malloc(MAX_NUMBER); | |
| snprintf(buf, MAX_NUMBER, "%u", tag); | |
| skey << buf; | |
| } | |
| if(const char *name=(const char *)exif_tag_value2name->get(skey)) | |
| hash.put(*new(pool) String(pool, name), value); | |
| else | else |
| hash.put(skey, value); | hash.put(String::Body::Format(tag), value); |
| } | } |
| } | } |
| static void parse_IFD(Pool& pool, | static void parse_IFD( |
| Hash& hash, | HashStringValue& hash, |
| bool is_big, Measure_reader& reader, long tiff_base) { | bool is_big, Measure_reader& reader, long tiff_base) { |
| const void *buf; | const char* buf; |
| if(reader.read(buf, sizeof(JPG_Exif_IFD_start))<sizeof(JPG_Exif_IFD_start)) | if(reader.read(buf, sizeof(JPG_Exif_IFD_begin))<sizeof(JPG_Exif_IFD_begin)) |
| return; | return; |
| JPG_Exif_IFD_start *start=(JPG_Exif_IFD_start *)buf; | JPG_Exif_IFD_begin *start=(JPG_Exif_IFD_begin *)buf; |
| ushort directory_entry_count=endian_to_ushort(is_big, start->directory_entry_count); | ushort directory_entry_count=endian_to_ushort(is_big, start->directory_entry_count); |
| for(int i=0; i<directory_entry_count; i++) { | for(int i=0; i<directory_entry_count; i++) { |
| 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(pool, 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); |
| } | } |
| // then goes: LLLLLLLL Offset to next IFD [not going there] | // then goes: LLLLLLLL Offset to next IFD [not going there] |
| } | } |
| static Value *parse_exif(Pool& pool, | static Value* parse_exif(Measure_reader& reader, const String& origin_string) { |
| Measure_reader& reader, | const char* buf; |
| const String *origin_string) { | if(reader.read(buf, sizeof(JPG_Exif_segment_begin))<sizeof(JPG_Exif_segment_begin)) |
| const void *buf; | |
| if(reader.read(buf, sizeof(JPG_Exif_segment_start))<sizeof(JPG_Exif_segment_start)) | |
| 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"); |
| JPG_Exif_segment_start *start=(JPG_Exif_segment_start *)buf; | JPG_Exif_segment_begin *start=(JPG_Exif_segment_begin *)buf; |
| if(memcmp(start->signature, "Exif\0\0", 4+2)!=0) //signature invalid? | if(memcmp(start->signature, "Exif\0\0", 4+2)!=0) //signature invalid? |
| return 0; // ignore invalid block | return 0; // ignore invalid block |
| Line 438 static Value *parse_exif(Pool& pool, | Line 555 static Value *parse_exif(Pool& pool, |
| uint first_IFD_offset=endian_to_uint(is_big, head->first_IFD_offset); | uint first_IFD_offset=endian_to_uint(is_big, head->first_IFD_offset); |
| reader.seek(tiff_base+first_IFD_offset, SEEK_SET); | reader.seek(tiff_base+first_IFD_offset, SEEK_SET); |
| VHash& vhash=*new(pool) VHash(pool); | VHash* vhash=new VHash; |
| // IFD | // IFD |
| parse_IFD(pool, vhash.hash(0), is_big, reader, tiff_base); | parse_IFD(vhash->hash(), is_big, reader, tiff_base); |
| return &vhash; | return vhash; |
| } | } |
| static void measure_jpeg(Pool& pool, const String *origin_string, | static void measure_jpeg(const String& origin_string, |
| Measure_reader& reader, ushort& width, ushort& height, Value ** exif) { | Measure_reader& reader, ushort& width, ushort& height, Value** exif) { |
| // JFIF format markers | // JFIF format markers |
| const uchar MARKER=0xFF; | const uchar MARKER=0xFF; |
| const uchar CODE_SIZE_A=0xC0; | const uchar CODE_SIZE_A=0xC0; |
| Line 456 static void measure_jpeg(Pool& pool, con | Line 573 static void measure_jpeg(Pool& pool, con |
| const uchar CODE_SIZE_D=0xC3; | const uchar CODE_SIZE_D=0xC3; |
| const uchar CODE_EXIF=0xE1; | const uchar CODE_EXIF=0xE1; |
| const void *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"); |
| while(true) { | while(true) { |
| Line 478 static void measure_jpeg(Pool& pool, con | Line 595 static void measure_jpeg(Pool& pool, con |
| // 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://www.ba.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(pool, reader, origin_string); | *exif=parse_exif(reader, origin_string); |
| break; | break; |
| case CODE_SIZE_A: | case CODE_SIZE_A: |
| Line 496 static void measure_jpeg(Pool& pool, con | Line 613 static void measure_jpeg(Pool& pool, con |
| // 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 510 static void measure_jpeg(Pool& pool, con | Line 627 static void measure_jpeg(Pool& pool, con |
| } | } |
| 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"); |
| } | } |
| static void measure_png(Pool& pool, const String *origin_string, | static void measure_png(const String& origin_string, |
| Measure_reader& reader, ushort& width, ushort& height) { | Measure_reader& reader, ushort& width, ushort& height) { |
| const void *buf; | const char* buf; |
| const int 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"); |
| width=endian_to_ushort(true, head->width); | width=endian_to_ushort(true, head->width); |
| Line 536 static void measure_png(Pool& pool, cons | Line 653 static void measure_png(Pool& pool, cons |
| // measure center | // measure center |
| static void measure(Pool& pool, 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) { |
| if(const char *cext=strrchr(file_name.cstr(String::UL_FILE_SPEC), '.')) { | const char* file_name_cstr=file_name.cstr(String::L_FILE_SPEC); |
| if(const char* cext=strrchr(file_name_cstr, '.')) { | |
| cext++; | cext++; |
| if(strcasecmp(cext, "GIF")==0) | if(strcasecmp(cext, "GIF")==0) |
| measure_gif(pool, &file_name, reader, width, height); | measure_gif(file_name, reader, width, height); |
| else if(strcasecmp(cext, "JPG")==0 || strcasecmp(cext, "JPEG")==0) | else if(strcasecmp(cext, "JPG")==0 || strcasecmp(cext, "JPEG")==0) |
| measure_jpeg(pool, &file_name, reader, width, height, exif); | measure_jpeg(file_name, reader, width, height, exif); |
| else if(strcasecmp(cext, "PNG")==0) | else if(strcasecmp(cext, "PNG")==0) |
| measure_png(pool, &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, |
| Line 560 static void measure(Pool& pool, const St | Line 678 static void measure(Pool& pool, const St |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| struct File_measure_action_info { | struct File_measure_action_info { |
| ushort *width; | ushort* width; |
| ushort *height; | ushort* height; |
| Value ** exif; | Value** exif; |
| const String *file_name; | const String* file_name; |
| }; | }; |
| #endif | #endif |
| static void file_measure_action(Pool& pool, | static void file_measure_action( |
| struct stat& finfo, int f, | struct stat& /*finfo*/, int f, |
| const String& file_spec, const char *fname, bool as_text, | const String& /*file_spec*/, const char* fname, bool /*as_text*/, |
| void *context) { | void *context) { |
| File_measure_action_info& info=*static_cast<File_measure_action_info *>(context); | File_measure_action_info& info=*static_cast<File_measure_action_info *>(context); |
| Measure_file_reader reader(pool, f, *info.file_name, fname); | Measure_file_reader reader(f, *info.file_name, fname); |
| measure(pool, *info.file_name, reader, *info.width, *info.height, info.exif); | measure(*info.file_name, reader, *info.width, *info.height, info.exif); |
| } | } |
| static void _measure(Request& r, const String& method_name, MethodParams *params) { | static void _measure(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | Value& data=params.as_no_junction(0, "data must not be code"); |
| Value& data=params->as_no_junction(0, "data must not be code"); | |
| ushort width=0; | ushort width=0; |
| ushort height=0; | ushort height=0; |
| Value *exif=0; | Value* exif=0; |
| const String *file_name; | const String* file_name; |
| if(file_name=data.get_string()) { | if((file_name=data.get_string())) { |
| File_measure_action_info info={&width, &height, &exif, file_name}; | File_measure_action_info info={ |
| file_read_action_under_lock(pool, r.absolute(*file_name), | &width, &height, |
| &exif, | |
| file_name | |
| }; | |
| file_read_action_under_lock(r.absolute(*file_name), | |
| "measure", file_measure_action, &info); | "measure", file_measure_action, &info); |
| } else { | } else { |
| const VFile& vfile=*data.as_vfile(); | VFile* vfile=data.as_vfile(); |
| file_name=&static_cast<Value *>(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(), |
| vfile.value_size(), | vfile->value_size(), |
| *file_name | *file_name |
| ); | ); |
| measure(pool, *file_name, reader, width, height, &exif); | measure(*file_name, reader, width, height, &exif); |
| } | } |
| VImage &vimage=*static_cast<VImage *>(r.get_self()); | GET_SELF(r, VImage).set(file_name, width, height, 0, exif); |
| vimage.set(file_name, width, height, 0, exif); | |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| struct Attrib_info { | struct Attrib_info { |
| String *tag; ///< html tag being constructed | String* tag; ///< html tag being constructed |
| Hash *skip; ///< tag attributes not to append to tag string [to skip] | HashStringValue* skip; ///< tag attributes not to append to tag string [to skip] |
| }; | }; |
| #endif | #endif |
| static void append_attrib_pair(const Hash::Key& key, Hash::Val *val, void *info) { | static void append_attrib_pair( |
| Attrib_info& ai=*static_cast<Attrib_info *>(info); | HashStringValue::key_type key, |
| HashStringValue::value_type value, | |
| Attrib_info* info) { | |
| // skip user-specified and internal(starting with "line-") attributes | // skip user-specified and internal(starting with "line-") attributes |
| if(ai.skip && ai.skip->get(key) || key.pos("line-")==0) | if(info->skip && info->skip->get(key) || key.pos("line-")==0) |
| return; | return; |
| Value& value=*static_cast<Value *>(val); | |
| // src="a.gif" width=123 ismap[=-1] | // src="a.gif" width=123 ismap[=-1] |
| *ai.tag << " " << key; | *info->tag << " " << key; |
| if(value.is_string() || value.as_int()>=0) | if(value->is_string() || value->as_int()>=0) |
| *ai.tag << "=\"" << value.as_string() << "\""; | *info->tag << "=\"" << value->as_string() << "\""; |
| } | } |
| static void _html(Request& r, const String& method_name, MethodParams *params) { | static void _html(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | |
| String tag(pool); | String tag; |
| tag << "<img"; | tag << "<img"; |
| const Hash& fields=static_cast<VImage *>(r.get_self())->fields(); | const HashStringValue& fields=GET_SELF(r, VImage).fields(); |
| Hash *attribs=0; | HashStringValue* attribs=0; |
| if(params->size()) { | if(params.count()) { |
| // for backward compatibility: someday was ^html{} | // for backward compatibility: someday was ^html{} |
| Value &vattribs=r.process_to_value(params->get(0), | Value& vattribs=r.process_to_value(params[0], |
| /*0/*no name* /,*/ | |
| 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(&method_name)) { | if((attribs=vattribs.get_hash())) { |
| Attrib_info attrib_info={&tag, 0}; | Attrib_info info={&tag, 0}; |
| attribs->for_each(append_attrib_pair, &attrib_info); | attribs->for_each(append_attrib_pair, &info); |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &method_name, | 0, |
| "attributes must be hash"); | "attributes must be hash"); |
| } | } |
| Attrib_info attrib_info={&tag, attribs}; | { |
| fields.for_each(append_attrib_pair, &attrib_info); | Attrib_info info={&tag, attribs}; |
| fields.for_each(append_attrib_pair, &info); | |
| } | |
| tag << " />"; | tag << " />"; |
| r.write_pass_lang(tag); | r.write_pass_lang(tag); |
| } | } |
| /// @test wrap FILE to auto-object | /// @test wrap FILE to auto-object |
| static gdImage *load(Request& r, const String& method_name, | static gdImage* load(Request& r, |
| const String& file_name){ | const String& file_name){ |
| Pool& pool=r.pool(); | const char* file_name_cstr=r.absolute(file_name).cstr(String::L_FILE_SPEC); |
| const char *file_name_cstr=r.absolute(file_name).cstr(String::UL_FILE_SPEC); | |
| if(FILE *f=fopen(file_name_cstr, "rb")) { | if(FILE *f=fopen(file_name_cstr, "rb")) { |
| gdImage& image=*new(pool) gdImage(pool); | 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 ℑ | return image; |
| } else { | } else { |
| throw Exception("file.missing", | throw Exception("file.missing", |
| &method_name, | 0, |
| "can not open '%s'", file_name_cstr); | "can not open '%s'", file_name_cstr); |
| return 0; | |
| } | } |
| } | } |
| static void _load(Request& r, const String& method_name, MethodParams *params) { | static void _load(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | 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); |
| GET_SELF(r, VImage).set(&file_name, image->SX(), image->SY(), image); | |
| gdImage& image=*load(r, method_name, file_name); | |
| int width=image.SX(); | |
| int height=image.SY(); | |
| static_cast<VImage *>(r.get_self())->set(&file_name, width, height, &image); | |
| } | } |
| static void _create(Request& r, const String& method_name, MethodParams *params) { | static void _create(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | int width=params.as_int(0, "width must be int", r); |
| int height=params.as_int(1, "height must be int", r); | |
| int width=params->as_int(0, "width must be int", r); | |
| int height=params->as_int(1, "height must be int", r); | |
| int bgcolor_value=0xffFFff; | int bgcolor_value=0xffFFff; |
| if(params->size()>2) | if(params.count()>2) |
| bgcolor_value=params->as_int(2, "color must be int", r); | bgcolor_value=params.as_int(2, "color must be int", r); |
| gdImage& image=*new(pool) gdImage(pool); | gdImage* image=new gdImage; |
| image.Create(width, height); | image->Create(width, height); |
| image.FilledRectangle(0, 0, width-1, height-1, image.Color(bgcolor_value)); | image->FilledRectangle(0, 0, width-1, height-1, image->Color(bgcolor_value)); |
| static_cast<VImage *>(r.get_self())->set(0, width, height, &image); | GET_SELF(r, VImage).set(0, width, height, image); |
| } | } |
| static void _gif(Request& r, const String& method_name, MethodParams *params) { | static void _gif(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& image=GET_SELF(r, VImage).image(); |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | const String *file_name=0; |
| if(!image) | if(params.count()>0) |
| throw Exception(0, | file_name=¶ms.as_string(0, "file name must be string"); |
| &method_name, | |
| "does not contain an image"); | |
| // could _ but don't thing it's wise to use $image.src for vfile.name | |
| String out(pool); image->Gif(out); | gdBuf buf=image.Gif(); |
| VFile& vfile=*new(pool) VFile(pool); | VFile& vfile=*new VFile; |
| Value *content_type=new(pool) VString(*new(pool) String(pool, "image/gif")); | Value* content_type=new VString(*new String("image/gif")); |
| vfile.set(false/*not tainted*/, | vfile.set(false/*not tainted*/, |
| out.cstr(), out.size(), 0, content_type); | (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); |
| } | } |
| static void _line(Request& r, const String& method_name, MethodParams *params) { | static void _line(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& image=GET_SELF(r, VImage).image(); |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | image.Line( |
| if(!image) | params.as_int(0, "x0 must be int", r), |
| throw Exception(0, | params.as_int(1, "y0 must be int", r), |
| &method_name, | params.as_int(2, "x1 must be int", r), |
| "does not contain an image"); | params.as_int(3, "y1 must be int", r), |
| image.Color(params.as_int(4, "color must be int", r))); | |
| image->Line( | } |
| params->as_int(0, "x0 must be int", r), | |
| params->as_int(1, "y0 must be int", r), | static void _fill(Request& r, MethodParams& params) { |
| params->as_int(2, "x1 must be int", r), | gdImage& image=GET_SELF(r, VImage).image(); |
| params->as_int(3, "y1 must be int", r), | |
| image->Color(params->as_int(4, "color must be int", r))); | image.Fill( |
| } | params.as_int(0, "x must be int", r), |
| params.as_int(1, "y must be int", r), | |
| static void _fill(Request& r, const String& method_name, MethodParams *params) { | image.Color(params.as_int(2, "color must be int", r))); |
| Pool& pool=r.pool(); | } |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | static void _rectangle(Request& r, MethodParams& params) { |
| if(!image) | gdImage& image=GET_SELF(r, VImage).image(); |
| throw Exception(0, | |
| &method_name, | image.Rectangle( |
| "does not contain an image"); | params.as_int(0, "x0 must be int", r), |
| params.as_int(1, "y0 must be int", r), | |
| image->Fill( | params.as_int(2, "x1 must be int", r), |
| params->as_int(0, "x must be int", r), | params.as_int(3, "y1 must be int", r), |
| params->as_int(1, "y must be int", r), | image.Color(params.as_int(4, "color must be int", r))); |
| image->Color(params->as_int(2, "color must be int", r))); | } |
| } | |
| static void _bar(Request& r, MethodParams& params) { | |
| static void _rectangle(Request& r, const String& method_name, MethodParams *params) { | gdImage& image=GET_SELF(r, VImage).image(); |
| Pool& pool=r.pool(); | |
| image.FilledRectangle( | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | params.as_int(0, "x0 must be int", r), |
| if(!image) | params.as_int(1, "y0 must be int", r), |
| throw Exception(0, | params.as_int(2, "x1 must be int", r), |
| &method_name, | params.as_int(3, "y1 must be int", r), |
| "does not contain an image"); | image.Color(params.as_int(4, "color must be int", r))); |
| image->Rectangle( | |
| params->as_int(0, "x0 must be int", r), | |
| params->as_int(1, "y0 must be int", r), | |
| params->as_int(2, "x1 must be int", r), | |
| params->as_int(3, "y1 must be int", r), | |
| image->Color(params->as_int(4, "color must be int", r))); | |
| } | |
| static void _bar(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| image->FilledRectangle( | |
| params->as_int(0, "x0 must be int", r), | |
| params->as_int(1, "y0 must be int", r), | |
| params->as_int(2, "x1 must be int", r), | |
| params->as_int(3, "y1 must be int", r), | |
| image->Color(params->as_int(4, "color must be int", r))); | |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| static void add_point(Array::Item *value, void *info) { | static void add_point(Table::element_type row, |
| Array& row=*static_cast<Array *>(value); | gdImage::Point **p) { |
| gdImage::Point **p=static_cast<gdImage::Point **>(info); | (**p).x=row->get(0)->as_int(); |
| (**p).y=row->get(1)->as_int(); | |
| (**p).x=row.get_string(0)->as_int(); | |
| (**p).y=row.get_string(1)->as_int(); | |
| (*p)++; | (*p)++; |
| } | } |
| #endif | #endif |
| static void _replace(Request& r, const String& method_name, MethodParams *params) { | static void _replace(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& image=GET_SELF(r, VImage).image(); |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| Table *table=params->as_no_junction(2, "coordinates must not be code").get_table(); | Table* table=params.as_no_junction(2, "coordinates must not be code").get_table(); |
| if(!table) | if(!table) |
| throw Exception(0, | throw Exception(0, |
| &method_name, | 0, |
| "coordinates must be table"); | "coordinates must be table"); |
| gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); | gdImage::Point *all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| table->for_each(add_point, &add_p); | table->for_each(add_point, &add_p); |
| image->FilledPolygonReplaceColor(all_p, table->size(), | image.FilledPolygonReplaceColor(all_p, table->count(), |
| image->Color(params->as_int(0, "src color must be int", r)), | image.Color(params.as_int(0, "src color must be int", r)), |
| image->Color(params->as_int(1, "dest color must be int", r))); | image.Color(params.as_int(1, "dest color must be int", r))); |
| } | } |
| static void _polyline(Request& r, const String& method_name, MethodParams *params) { | static void _polyline(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& image=GET_SELF(r, VImage).image(); |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | Table* table=params.as_no_junction(1, "coordinates must not be code").get_table(); |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| Table *table=params->as_no_junction(1, "coordinates must not be code").get_table(); | |
| if(!table) | if(!table) |
| throw Exception(0, | throw Exception(0, |
| &method_name, | 0, |
| "coordinates must be table"); | "coordinates must be table"); |
| gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| table->for_each(add_point, &add_p); | table->for_each(add_point, &add_p); |
| image->Polygon(all_p, table->size(), | image.Polygon(all_p, table->count(), |
| image->Color(params->as_int(0, "color must be int", r)), | image.Color(params.as_int(0, "color must be int", r)), |
| false/*not closed*/); | false/*not closed*/); |
| } | } |
| static void _polygon(Request& r, const String& method_name, MethodParams *params) { | static void _polygon(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& image=GET_SELF(r, VImage).image(); |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| Table *table=params->as_no_junction(1, "coordinates must not be code").get_table(); | Table* table=params.as_no_junction(1, "coordinates must not be code").get_table(); |
| if(!table) | if(!table) |
| throw Exception(0, | throw Exception(0, |
| &method_name, | 0, |
| "coordinates must be table"); | "coordinates must be table"); |
| gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| table->for_each(add_point, &add_p); | table->for_each(add_point, &add_p); |
| image->Polygon(all_p, table->size(), | image.Polygon(all_p, table->count(), |
| image->Color(params->as_int(0, "color must be int", r))); | image.Color(params.as_int(0, "color must be int", r))); |
| } | } |
| static void _polybar(Request& r, const String& method_name, MethodParams *params) { | static void _polybar(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& image=GET_SELF(r, VImage).image(); |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | Table* table=params.as_no_junction(1, "coordinates must not be code").get_table(); |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| Table *table=params->as_no_junction(1, "coordinates must not be code").get_table(); | |
| if(!table) | if(!table) |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &method_name, | 0, |
| "coordinates must be table"); | "coordinates must be table"); |
| gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| table->for_each(add_point, &add_p); | table->for_each(add_point, &add_p); |
| image->FilledPolygon(all_p, table->size(), | image.FilledPolygon(all_p, table->count(), |
| image->Color(params->as_int(0, "color must be int", r))); | image.Color(params.as_int(0, "color must be int", r))); |
| } | } |
| // font | // font |
| #define Y(y)(y+index*height) | #define Y(y)(y+index*height) |
| /// simple gdImage-based font storage & text output | // Font class |
| class Font: public Pooled { | |
| public: | const int Font::letter_spacing=1; |
| const static int letter_spacing; | Font::Font(//, |
| int height; ///< Font heigth | const String& aalphabet, |
| int monospace; ///< Default char width | gdImage* aifont, int aheight, int amonospace, int aspacebarspace): |
| int spacebarspace; ///< spacebar width | height(aheight), monospace(amonospace), spacebarspace(aspacebarspace), |
| gdImage& ifont; | ifont(aifont), |
| const String& alphabet; | alphabet(aalphabet) { |
| } | |
| Font(Pool& pool, | |
| const String& aalphabet, | /* ******************************** char ********************************** */ |
| gdImage& aifont, int aheight, int amonospace, int aspacebarspace): Pooled(pool), | |
| alphabet(aalphabet), | size_t Font::index_of(char ch) { |
| height(aheight), monospace(amonospace), spacebarspace(aspacebarspace), | if(ch==' ') return STRING_NOT_FOUND; |
| ifont(aifont) { | return alphabet.pos(ch); |
| } | } |
| /* ******************************** char ********************************** */ | int Font::index_width(size_t index) { |
| if(index==STRING_NOT_FOUND) | |
| int index_of(char ch) { | return spacebarspace; |
| if(ch==' ') return -1; | int tr=ifont->GetTransparent(); |
| return alphabet.pos(&ch, 1); | for(int x=ifont->SX()-1; x>=0; x--) { |
| } | for(int y=0; y<height; y++) |
| if(ifont->GetPixel(x, Y(y))!=tr) | |
| int index_width(int index) { | return x+1; |
| if(index<0) | |
| return spacebarspace; | |
| int tr=ifont.GetTransparent(); | |
| for(int x=ifont.SX()-1; x>=0; x--) { | |
| for(int y=0; y<height; y++) | |
| if(ifont.GetPixel(x, Y(y))!=tr) | |
| return x+1; | |
| } | |
| return 0; | |
| } | |
| void index_display(gdImage& image, int x, int y, int index){ | |
| if(index>=0) | |
| ifont.Copy(image, x, y, 0, Y(0), index_width(index), height); | |
| } | |
| /* ******************************** string ********************************** */ | |
| int string_width(const String& s){ | |
| const char *cstr=s.cstr(); | |
| int result=0; | |
| for(; *cstr; cstr++) | |
| result+=index_width(index_of(*cstr)); | |
| return result; | |
| } | } |
| return 0; | |
| void string_display(gdImage& image, int x, int y, const String& s){ | } |
| const char *cstr=s.cstr(); | |
| if(cstr) for(; *cstr; cstr++) { | void Font::index_display(gdImage& image, int x, int y, size_t index){ |
| int index=index_of(*cstr); | if(index!=STRING_NOT_FOUND) |
| index_display(image, x, y, index); | ifont->Copy(image, x, y, 0, Y(0), index_width(index), height); |
| x+=letter_spacing + (monospace ? monospace : index_width(index)); | } |
| } | |
| /* ******************************** string ********************************** */ | |
| int Font::step_width(int index) { | |
| return letter_spacing + (monospace ? monospace : index_width(index)); | |
| } | |
| // counts trailing letter_spacing, consider this OK. useful for contiuations | |
| int Font::string_width(const String& s){ | |
| const char* cstr=s.cstr(); | |
| int result=0; | |
| for(const char* current=cstr; *current; current++) | |
| result+=step_width(index_of(*current)); | |
| return result; | |
| } | |
| void Font::string_display(gdImage& image, int x, int y, const String& s){ | |
| const char* cstr=s.cstr(); | |
| for(const char* current=cstr; *current; current++) { | |
| size_t index=index_of(*current); | |
| index_display(image, x, y, index); | |
| x+=step_width(index); | |
| } | } |
| } | |
| }; | |
| const int Font::letter_spacing=1; | // |
| static void _font(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| const String& alphabet=params->as_string(0, "alphabet must not be code"); | static void _font(Request& r, MethodParams& params) { |
| gdImage& image=*load(r, method_name, params->as_string(1, "file_name must not be code")); | const String& alphabet=params.as_string(0, "alphabet must not be code"); |
| int spacebar_width=params->as_int(2, "spacebar_width must be int", r); | gdImage* image=load(r, params.as_string(1, "file_name must not be code")); |
| int spacebar_width=params.as_int(2, "spacebar_width must be int", r); | |
| int monospace_width; | int monospace_width; |
| if(params->size()>3) { | if(params.count()>3) { |
| monospace_width=params->as_int(3, "monospace_width must be int", r); | monospace_width=params.as_int(3, "monospace_width must be int", r); |
| if(!monospace_width) | if(!monospace_width) |
| monospace_width=image.SX(); | monospace_width=image->SX(); |
| } else | } else |
| monospace_width=0; | monospace_width=0; |
| if(!alphabet.size()) | if(!alphabet.length()) |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &method_name, | 0, |
| "alphabet must not be empty"); | "alphabet must not be empty"); |
| if(int remainder=image.SY() % alphabet.size()) | if(int remainder=image->SY() % alphabet.length()) |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &method_name, | 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.size(), remainder); | image->SY(), alphabet.length(), remainder); |
| static_cast<VImage *>(r.get_self())->font=new(pool) Font(pool, | GET_SELF(r, VImage).set_font(new Font( |
| alphabet, | alphabet, |
| image, | image, |
| image.SY() / alphabet.size(), monospace_width, spacebar_width); | image->SY() / alphabet.length(), monospace_width, spacebar_width)); |
| } | } |
| static void _text(Request& r, const String& method_name, MethodParams *params) { | static void _text(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | int x=params.as_int(0, "x must be int", r); |
| int y=params.as_int(1, "y must be int", r); | |
| const String& s=params.as_string(2, "text must not be code"); | |
| int x=params->as_int(0, "x must be int", r); | VImage& vimage=GET_SELF(r, VImage); |
| int y=params->as_int(1, "y must be int", r); | vimage.font().string_display(vimage.image(), x, y, s); |
| const String& s=params->as_string(2, "text must not be code"); | } |
| VImage& vimage=*static_cast<VImage *>(r.get_self()); | static void _length(Request& r, MethodParams& params) { |
| if(vimage.image) | const String& s=params.as_string(0, "text must not be code"); |
| if(vimage.font) | |
| vimage.font->string_display(*vimage.image, x, y, s); | VImage& vimage=GET_SELF(r, VImage); |
| else | r.write_no_lang(*new VInt(vimage.font().string_width(s))); |
| throw Exception("parser.runtime", | } |
| &method_name, | |
| "set the font first"); | static void _arc(Request& r, MethodParams& params) { |
| else | gdImage& image=GET_SELF(r, VImage).image(); |
| throw Exception(0, | |
| &method_name, | image.Arc( |
| "does not contain an image"); | params.as_int(0, "center_x must be int", r), |
| } | params.as_int(1, "center_y must be int", r), |
| params.as_int(2, "width must be int", r), | |
| static void _length(Request& r, const String& method_name, MethodParams *params) { | params.as_int(3, "height must be int", r), |
| Pool& pool=r.pool(); | params.as_int(4, "start degrees must be int", r), |
| params.as_int(5, "end degrees must be int", r), | |
| const String& s=params->as_string(0, "text must not be code"); | image.Color(params.as_int(6, "cx must be int", r))); |
| } | |
| VImage& vimage=*static_cast<VImage *>(r.get_self()); | |
| if(vimage.image) | static void _sector(Request& r, MethodParams& params) { |
| if(vimage.font) { | gdImage& image=GET_SELF(r, VImage).image(); |
| r.write_no_lang(*new(pool) VInt(pool, vimage.font->string_width(s))); | |
| } else | image.Sector( |
| throw Exception("parser.runtime", | params.as_int(0, "center_x must be int", r), |
| &method_name, | params.as_int(1, "center_y must be int", r), |
| "set the font first"); | params.as_int(2, "width must be int", r), |
| else | params.as_int(3, "height must be int", r), |
| throw Exception(0, | params.as_int(4, "start degrees must be int", r), |
| &method_name, | params.as_int(5, "end degrees must be int", r), |
| "does not contain an image"); | image.Color(params.as_int(6, "color must be int", r))); |
| } | } |
| static void _arc(Request& r, const String& method_name, MethodParams *params) { | static void _circle(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& image=GET_SELF(r, VImage).image(); |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | int size=params.as_int(2, "radius must be int", r)*2; |
| if(!image) | image.Arc( |
| throw Exception(0, | params.as_int(0, "center_x must be int", r), |
| &method_name, | params.as_int(1, "center_y must be int", r), |
| "does not contain an image"); | |
| image->Arc( | |
| params->as_int(0, "center_x must be int", r), | |
| params->as_int(1, "center_y must be int", r), | |
| params->as_int(2, "width must be int", r), | |
| params->as_int(3, "height must be int", r), | |
| params->as_int(4, "start degrees must be int", r), | |
| params->as_int(5, "end degrees must be int", r), | |
| image->Color(params->as_int(6, "cx must be int", r))); | |
| } | |
| static void _sector(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| image->Sector( | |
| params->as_int(0, "center_x must be int", r), | |
| params->as_int(1, "center_y must be int", r), | |
| params->as_int(2, "width must be int", r), | |
| params->as_int(3, "height must be int", r), | |
| params->as_int(4, "start degrees must be int", r), | |
| params->as_int(5, "end degrees must be int", r), | |
| image->Color(params->as_int(6, "color must be int", r))); | |
| } | |
| static void _circle(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| int size=params->as_int(2, "radius must be int", r)*2; | |
| image->Arc( | |
| params->as_int(0, "center_x must be int", r), | |
| params->as_int(1, "center_y must be int", r), | |
| size, //w | size, //w |
| size, //h | size, //h |
| 0, //s | 0, //s |
| 360, //e | 360, //e |
| image->Color(params->as_int(3, "color must be int", r))); | image.Color(params.as_int(3, "color must be int", r))); |
| } | } |
| gdImage& as_image(Pool& pool, const String& method_name, MethodParams *params, | gdImage& as_image(MethodParams& params, int index, const char* msg) { |
| int index, const char *msg) { | Value& value=params.as_no_junction(index, msg); |
| gdImage *src=0; | |
| Value& value=params->as_no_junction(index, msg); | if(Value* vimage=value.as(VIMAGE_TYPE, false)) { |
| return static_cast<VImage *>(vimage)->image(); | |
| if(Value *vimage=value.as(VIMAGE_TYPE, false)) { | |
| src=static_cast<VImage *>(vimage)->image; | |
| if(!src) | |
| throw Exception("parser.runtime", | |
| &method_name, | |
| msg); | |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &method_name, | 0, |
| msg); | msg); |
| return *src; | |
| } | } |
| static void _copy(Request& r, const String& method_name, MethodParams *params) { | static void _copy(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | gdImage& dest=GET_SELF(r, VImage).image(); |
| gdImage *dest=static_cast<VImage *>(r.get_self())->image; | gdImage& src=as_image(params, 0, "src must be image"); |
| if(!dest) | |
| throw Exception(0, | |
| &method_name, | |
| "self does not contain an image"); | |
| gdImage& src=as_image(pool, method_name, params, 0, "src must be image"); | |
| int sx=params->as_int(1, "src_x must be int", r); | |
| int sy=params->as_int(2, "src_y must be int", r); | |
| int sw=params->as_int(3, "src_w must be int", r); | |
| int sh=params->as_int(4, "src_h must be int", r); | |
| int dx=params->as_int(5, "dest_x must be int", r); | |
| int dy=params->as_int(6, "dest_y must be int", r); | |
| if(params->size()>1+2+2+2) { | |
| int dw=params->as_int(1+2+2+2, "dest_w must be int", r); | |
| int dh=(int)(params->size()>1+2+2+2+1? | |
| params->as_int(1+2+2+2+1, "dest_h must be int", r):sh*(((double)dw)/((double)sw))); | |
| int tolerance=params->size()>1+2+2+2+2? | |
| params->as_int(1+2+2+2+2, "tolerance must be int", r):150; | |
| src.CopyResampled(*dest, dx, dy, sx, sy, dw, dh, sw, sh, tolerance); | int sx=params.as_int(1, "src_x must be int", r); |
| int sy=params.as_int(2, "src_y must be int", r); | |
| int sw=params.as_int(3, "src_w must be int", r); | |
| int sh=params.as_int(4, "src_h must be int", r); | |
| int dx=params.as_int(5, "dest_x must be int", r); | |
| int dy=params.as_int(6, "dest_y must be int", r); | |
| if(params.count()>1+2+2+2) { | |
| int dw=params.as_int(1+2+2+2, "dest_w must be int", r); | |
| int dh=(int)(params.count()>1+2+2+2+1? | |
| params.as_int(1+2+2+2+1, "dest_h must be int", r):sh*(((double)dw)/((double)sw))); | |
| int tolerance=params.count()>1+2+2+2+2? | |
| params.as_int(1+2+2+2+2, "tolerance must be int", r):150; | |
| src.CopyResampled(dest, dx, dy, sx, sy, dw, dh, sw, sh, tolerance); | |
| } else | } else |
| src.Copy(*dest, dx, dy, sx, sy, sw, sh); | src.Copy(dest, dx, dy, sx, sy, sw, sh); |
| } | |
| static void _pixel(Request& r, MethodParams& params) { | |
| gdImage& image=GET_SELF(r, VImage).image(); | |
| int x=params.as_int(0, "x must be int", r); | |
| int y=params.as_int(1, "y must be int", r); | |
| if(params.count()>2) { | |
| image.SetPixel(x, y, | |
| image.Color(params.as_int(2, "color must be int", r))); | |
| } else | |
| r.write_no_lang(*new VInt(image.DecodeColor(image.GetPixel(x, y)))); | |
| } | } |
| // constructor | // constructor |
| MImage::MImage(Pool& apool) : Methoded(apool, "image") { | MImage::MImage(): Methoded("image") { |
| // ^image:measure[DATA] | // ^image:measure[DATA] |
| add_native_method("measure", Method::CT_DYNAMIC, _measure, 1, 1); | add_native_method("measure", Method::CT_DYNAMIC, _measure, 1, 1); |
| Line 1155 MImage::MImage(Pool& apool) : Methoded(a | Line 1165 MImage::MImage(Pool& apool) : Methoded(a |
| add_native_method("create", Method::CT_DYNAMIC, _create, 2, 3); | add_native_method("create", Method::CT_DYNAMIC, _create, 2, 3); |
| // ^image.gif[] | // ^image.gif[] |
| add_native_method("gif", Method::CT_DYNAMIC, _gif, 0, 0); | add_native_method("gif", Method::CT_DYNAMIC, _gif, 0, 1); |
| // ^image.line(x0;y0;x1;y1;color) | // ^image.line(x0;y0;x1;y1;color) |
| add_native_method("line", Method::CT_DYNAMIC, _line, 5, 5); | add_native_method("line", Method::CT_DYNAMIC, _line, 5, 5); |
| Line 1202 MImage::MImage(Pool& apool) : Methoded(a | Line 1212 MImage::MImage(Pool& apool) : Methoded(a |
| // ^image.copy[source](src x;src y;src w;src h;dst x;dst y[;dest w[;dest h[;tolerance]]]) | // ^image.copy[source](src x;src y;src w;src h;dst x;dst y[;dest w[;dest h[;tolerance]]]) |
| add_native_method("copy", Method::CT_DYNAMIC, _copy, 1+2+2+2, (1+2+2+2)+2+1); | add_native_method("copy", Method::CT_DYNAMIC, _copy, 1+2+2+2, (1+2+2+2)+2+1); |
| } | |
| // global variable | |
| Methoded *image_class; | |
| // creator | |
| Methoded *MImage_create(Pool& pool) { | // ^image.pixel(x;y)[(color)] |
| return image_class=new(pool) MImage(pool); | add_native_method("pixel", Method::CT_DYNAMIC, _pixel, 2, 3); |
| } | } |