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| version 1.148, 2015/10/09 11:42:38 | version 1.154, 2016/10/04 22:05:28 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b image parser class. | Parser: @b image parser class. |
| Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com) | Copyright (c) 2001-2015 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) |
| */ | */ |
| Line 45 public: | Line 45 public: |
| // globals | // globals |
| DECLARE_CLASS_VAR(image, new MImage, 0); | DECLARE_CLASS_VAR(image, new MImage); |
| // helpers | // helpers |
| Line 179 public: | Line 179 public: |
| EXIF_TAG(0xa40b, DeviceSettingDescription); | EXIF_TAG(0xa40b, DeviceSettingDescription); |
| EXIF_TAG(0xa40c, SubjectDistanceRange); | EXIF_TAG(0xa40c, SubjectDistanceRange); |
| EXIF_TAG(0xa420, ImageUniqueID); | 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; |
| Line 230 public: | Line 238 public: |
| }; | }; |
| class Measure_file_reader: public Measure_reader { | class Measure_file_reader: public Measure_reader { |
| const String& file_name; const char* fname; | const String& file_name; |
| int f; | int f; |
| public: | public: |
| Measure_file_reader(int af, const String& afile_name, const char* afname): | Measure_file_reader(int af, const String& afile_name): |
| file_name(afile_name), fname(afname), f(af) { | file_name(afile_name), f(af) { |
| } | } |
| override size_t read(const char* &abuf, size_t limit) { | override size_t read(const char* &abuf, size_t limit) { |
| Line 251 public: | Line 259 public: |
| 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, "seek(value=%ld, whence=%d) failed: %s (%d)", value, whence, strerror(errno), errno); |
| &file_name, | |
| "seek(value=%ld, whence=%d) failed: %s (%d), actual filename '%s'", | |
| value, whence, strerror(errno), errno, fname); | |
| } | } |
| override long tell() { return lseek(f, 0, SEEK_CUR); } | override long tell() { return lseek(f, 0, SEEK_CUR); } |
| Line 392 inline uint endian_to_uint(bool is_big, | Line 397 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(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 char* buf; | const char* buf; |
| const size_t head_size=sizeof(GIF_Header); | const size_t head_size=sizeof(GIF_Header); |
| Line 630 static Value* parse_exif(Measure_reader& | Line 634 static Value* parse_exif(Measure_reader& |
| return vhash; | return vhash; |
| } | } |
| static void measure_jpeg(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 698 static void measure_jpeg(const String& o | Line 701 static void measure_jpeg(const String& o |
| "broken JPEG file - size frame not found"); | "broken JPEG file - size frame not found"); |
| } | } |
| static void measure_png(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 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, "not PNG file - too small"); |
| &origin_string, | |
| "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, "not PNG file - wrong signature"); |
| &origin_string, | |
| "not PNG file - wrong signature"); | |
| width=endian_to_ushort(true, head->width); | width=endian_to_ushort(true, head->width); |
| height=endian_to_ushort(true, head->height); | height=endian_to_ushort(true, head->height); |
| Line 720 static void measure_png(const String& or | Line 718 static void measure_png(const String& or |
| // measure center | // measure center |
| 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.taint_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++; |
| Line 732 static void measure(const String& file_n | Line 729 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, "unhandled image file name extension '%s'", cext); |
| &file_name, | |
| "unhandled image file name extension '%s'", cext); | |
| } else | } else |
| throw Exception(IMAGE_FORMAT, | throw Exception(IMAGE_FORMAT, &file_name, "can not determine image type - no file name extension"); |
| &file_name, | |
| "can not determine image type - no file name extension"); | |
| } | } |
| // methods | // methods |
| Line 748 struct File_measure_action_info { | Line 741 struct File_measure_action_info { |
| ushort* width; | ushort* width; |
| ushort* height; | ushort* height; |
| Value** exif; | Value** exif; |
| const String* file_name; | |
| }; | }; |
| #endif | #endif |
| static void file_measure_action( | static void file_measure_action(struct stat& /*finfo*/, int f, const String& file_spec, void *context) { |
| struct stat& /*finfo*/, int f, | |
| const String& /*file_spec*/, const char* fname, bool /*as_text*/, | |
| 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(f, *info.file_name, fname); | Measure_file_reader reader(f, file_spec); |
| measure(*info.file_name, reader, *info.width, *info.height, info.exif); | measure(file_spec, reader, *info.width, *info.height, info.exif); |
| } | } |
| static void _measure(Request& r, MethodParams& params) { | static void _measure(Request& r, MethodParams& params) { |
| Line 771 static void _measure(Request& r, MethodP | Line 760 static void _measure(Request& r, MethodP |
| if((file_name=data.get_string())) { | if((file_name=data.get_string())) { |
| File_measure_action_info info={ | File_measure_action_info info={ |
| &width, &height, | &width, &height, |
| &exif, | &exif |
| file_name | |
| }; | }; |
| 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(String::L_AS_IS); | 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(); |
| Line 823 static void _html(Request& r, MethodPara | Line 810 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], false/*don't intercept string*/); | Value& vattribs=r.process(params[0]); |
| 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}; |
| Line 1146 static void _font(Request& r, MethodPara | Line 1133 static void _font(Request& r, MethodPara |
| int valid_options=0; | int valid_options=0; |
| if(Value* vspacebar_width=options->get(spacebar_width_name)){ | if(Value* vspacebar_width=options->get(spacebar_width_name)){ |
| valid_options++; | valid_options++; |
| spacebar_width=r.process_to_value(*vspacebar_width).as_int(); | spacebar_width=r.process(*vspacebar_width).as_int(); |
| } | } |
| if(Value* vmonospace_width=options->get(monospace_width_name)){ | if(Value* vmonospace_width=options->get(monospace_width_name)){ |
| valid_options++; | valid_options++; |
| monospace_width=r.process_to_value(*vmonospace_width).as_int(); | monospace_width=r.process(*vmonospace_width).as_int(); |
| if(!monospace_width) | if(!monospace_width) |
| monospace_width=image->SX(); | monospace_width=image->SX(); |
| } | } |
| if(Value* vletter_spacing=options->get(letter_spacing_name)){ | if(Value* vletter_spacing=options->get(letter_spacing_name)){ |
| valid_options++; | valid_options++; |
| letter_spacing=r.process_to_value(*vletter_spacing).as_int(); | letter_spacing=r.process(*vletter_spacing).as_int(); |
| } | } |
| if(valid_options!=options->count()) | if(valid_options!=options->count()) |
| throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); | throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); |