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load-image.min.js

load-image.min.js 17 KB
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  1. /*
    2. 

  2. 

  3. @licstart  The following is the entire license notice for the 
    4. 

  4. JavaScript code in this page.
    5. 

  5. 

  6. Copyright (c) 2011 Sebastian Tschan
    7. 

  7. 

  8. Permission is hereby granted, free of charge, to any person obtaining
    9. 

  9. a copy of this software and associated documentation files (the
    10. 

  10. "Software"), to deal in the Software without restriction, including
    11. 

  11. without limitation the rights to use, copy, modify, merge, publish,
    12. 

  12. distribute, sublicense, and/or sell copies of the Software, and to
    13. 

  13. permit persons to whom the Software is furnished to do so, subject to
    14. 

  14. the following conditions:
    15. 

  15. 

  16. The above copyright notice and this permission notice shall be included
    17. 

  17. in all copies or substantial portions of the Software.
    18. 

  18. 

  19. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    20. 

  20. EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    21. 

  21. MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    22. 

  22. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
    23. 

  23. CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    24. 

  24. TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    25. 

  25. SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    26. 

  26. 

  27. @licend  The above is the entire license notice
    28. 

  28. for the JavaScript code in this page.
    29. 

  29. 

  30. */
    31. 

  31. 

  32. !function(a){"use strict";var b=function(a,c,d){var e,f,g=document.createElement("img");if(g.onerror=c,g.onload=function(){!f||d&&d.noRevoke||b.revokeObjectURL(f),c&&c(b.scale(g,d))},b.isInstanceOf("Blob",a)||b.isInstanceOf("File",a))e=f=b.createObjectURL(a),g._type=a.type;else{if("string"!=typeof a)return!1;e=a,d&&d.crossOrigin&&(g.crossOrigin=d.crossOrigin)}return e?(g.src=e,g):b.readFile(a,function(a){var b=a.target;b&&b.result?g.src=b.result:c&&c(a)})},c=window.createObjectURL&&window||window.URL&&URL.revokeObjectURL&&URL||window.webkitURL&&webkitURL;b.isInstanceOf=function(a,b){return Object.prototype.toString.call(b)==="[object "+a+"]"},b.transformCoordinates=function(){},b.getTransformedOptions=function(a){return a},b.renderImageToCanvas=function(a,b,c,d,e,f,g,h,i,j){return a.getContext("2d").drawImage(b,c,d,e,f,g,h,i,j),a},b.hasCanvasOption=function(a){return a.canvas||a.crop},b.scale=function(a,c){c=c||{};var d,e,f,g,h,i,j,k,l,m=document.createElement("canvas"),n=a.getContext||b.hasCanvasOption(c)&&m.getContext,o=a.naturalWidth||a.width,p=a.naturalHeight||a.height,q=o,r=p,s=function(){var a=Math.max((f||q)/q,(g||r)/r);a>1&&(q=Math.ceil(q*a),r=Math.ceil(r*a))},t=function(){var a=Math.min((d||q)/q,(e||r)/r);1>a&&(q=Math.ceil(q*a),r=Math.ceil(r*a))};return n&&(c=b.getTransformedOptions(c),j=c.left||0,k=c.top||0,c.sourceWidth?(h=c.sourceWidth,void 0!==c.right&&void 0===c.left&&(j=o-h-c.right)):h=o-j-(c.right||0),c.sourceHeight?(i=c.sourceHeight,void 0!==c.bottom&&void 0===c.top&&(k=p-i-c.bottom)):i=p-k-(c.bottom||0),q=h,r=i),d=c.maxWidth,e=c.maxHeight,f=c.minWidth,g=c.minHeight,n&&d&&e&&c.crop?(q=d,r=e,l=h/i-d/e,0>l?(i=e*h/d,void 0===c.top&&void 0===c.bottom&&(k=(p-i)/2)):l>0&&(h=d*i/e,void 0===c.left&&void 0===c.right&&(j=(o-h)/2))):((c.contain||c.cover)&&(f=d=d||f,g=e=e||g),c.cover?(t(),s()):(s(),t())),n?(m.width=q,m.height=r,b.transformCoordinates(m,c),b.renderImageToCanvas(m,a,j,k,h,i,0,0,q,r)):(a.width=q,a.height=r,a)},b.createObjectURL=function(a){return c?c.createObjectURL(a):!1},b.revokeObjectURL=function(a){return c?c.revokeObjectURL(a):!1},b.readFile=function(a,b,c){if(window.FileReader){var d=new FileReader;if(d.onload=d.onerror=b,c=c||"readAsDataURL",d[c])return d[c](a),d}return!1},"function"==typeof define&&define.amd?define(function(){return b}):a.loadImage=b}(this),function(a){"use strict";"function"==typeof define&&define.amd?define(["load-image"],a):a(window.loadImage)}(function(a){"use strict";if(window.navigator&&window.navigator.platform&&/iP(hone|od|ad)/.test(window.navigator.platform)){var b=a.renderImageToCanvas;a.detectSubsampling=function(a){var b,c;return a.width*a.height>1048576?(b=document.createElement("canvas"),b.width=b.height=1,c=b.getContext("2d"),c.drawImage(a,-a.width+1,0),0===c.getImageData(0,0,1,1).data[3]):!1},a.detectVerticalSquash=function(a,b){var c,d,e,f,g,h=a.naturalHeight||a.height,i=document.createElement("canvas"),j=i.getContext("2d");for(b&&(h/=2),i.width=1,i.height=h,j.drawImage(a,0,0),c=j.getImageData(0,0,1,h).data,d=0,e=h,f=h;f>d;)g=c[4*(f-1)+3],0===g?e=f:d=f,f=e+d>>1;return f/h||1},a.renderImageToCanvas=function(c,d,e,f,g,h,i,j,k,l){if("image/jpeg"===d._type){var m,n,o,p,q=c.getContext("2d"),r=document.createElement("canvas"),s=1024,t=r.getContext("2d");if(r.width=s,r.height=s,q.save(),m=a.detectSubsampling(d),m&&(e/=2,f/=2,g/=2,h/=2),n=a.detectVerticalSquash(d,m),m||1!==n){for(f*=n,k=Math.ceil(s*k/g),l=Math.ceil(s*l/h/n),j=0,p=0;h>p;){for(i=0,o=0;g>o;)t.clearRect(0,0,s,s),t.drawImage(d,e,f,g,h,-o,-p,g,h),q.drawImage(r,0,0,s,s,i,j,k,l),o+=s,i+=k;p+=s,j+=l}return q.restore(),c}}return b(c,d,e,f,g,h,i,j,k,l)}}}),function(a){"use strict";"function"==typeof define&&define.amd?define(["load-image"],a):a(window.loadImage)}(function(a){"use strict";var b=a.hasCanvasOption;a.hasCanvasOption=function(a){return b(a)||a.orientation},a.transformCoordinates=function(a,b){var c=a.getContext("2d"),d=a.width,e=a.height,f=b.orientation;if(f)switch(f>4&&(a.width=e,a.height=d),f){case 2:c.translate(d,0),c.scale(-1,1);break;case 3:c.translate(d,e),c.rotate(Math.PI);break;case 4:c.translate(0,e),c.scale(1,-1);break;case 5:c.rotate(.5*Math.PI),c.scale(1,-1);break;case 6:c.rotate(.5*Math.PI),c.translate(0,-e);break;case 7:c.rotate(.5*Math.PI),c.translate(d,-e),c.scale(-1,1);break;case 8:c.rotate(-.5*Math.PI),c.translate(-d,0)}},a.getTransformedOptions=function(a){if(!a.orientation||1===a.orientation)return a;var b,c={};for(b in a)a.hasOwnProperty(b)&&(c[b]=a[b]);switch(a.orientation){case 2:c.left=a.right,c.right=a.left;break;case 3:c.left=a.right,c.top=a.bottom,c.right=a.left,c.bottom=a.top;break;case 4:c.top=a.bottom,c.bottom=a.top;break;case 5:c.left=a.top,c.top=a.left,c.right=a.bottom,c.bottom=a.right;break;case 6:c.left=a.top,c.top=a.right,c.right=a.bottom,c.bottom=a.left;break;case 7:c.left=a.bottom,c.top=a.right,c.right=a.top,c.bottom=a.left;break;case 8:c.left=a.bottom,c.top=a.left,c.right=a.top,c.bottom=a.right}return a.orientation>4&&(c.maxWidth=a.maxHeight,c.maxHeight=a.maxWidth,c.minWidth=a.minHeight,c.minHeight=a.minWidth,c.sourceWidth=a.sourceHeight,c.sourceHeight=a.sourceWidth),c}}),function(a){"use strict";"function"==typeof define&&define.amd?define(["load-image"],a):a(window.loadImage)}(function(a){"use strict";var b=window.Blob&&(Blob.prototype.slice||Blob.prototype.webkitSlice||Blob.prototype.mozSlice);a.blobSlice=b&&function(){var a=this.slice||this.webkitSlice||this.mozSlice;return a.apply(this,arguments)},a.metaDataParsers={jpeg:{65505:[]}},a.parseMetaData=function(b,c,d){d=d||{};var e=this,f=d.maxMetaDataSize||262144,g={},h=!(window.DataView&&b&&b.size>=12&&"image/jpeg"===b.type&&a.blobSlice);(h||!a.readFile(a.blobSlice.call(b,0,f),function(b){if(b.target.error)return console.log(b.target.error),c(g),void 0;var f,h,i,j,k=b.target.result,l=new DataView(k),m=2,n=l.byteLength-4,o=m;if(65496===l.getUint16(0)){for(;n>m&&(f=l.getUint16(m),f>=65504&&65519>=f||65534===f);){if(h=l.getUint16(m+2)+2,m+h>l.byteLength){console.log("Invalid meta data: Invalid segment size.");break}if(i=a.metaDataParsers.jpeg[f])for(j=0;j<i.length;j+=1)i[j].call(e,l,m,h,g,d);m+=h,o=m}!d.disableImageHead&&o>6&&(g.imageHead=k.slice?k.slice(0,o):new Uint8Array(k).subarray(0,o))}else console.log("Invalid JPEG file: Missing JPEG marker.");c(g)},"readAsArrayBuffer"))&&c(g)}}),function(a){"use strict";"function"==typeof define&&define.amd?define(["load-image","load-image-meta"],a):a(window.loadImage)}(function(a){"use strict";a.ExifMap=function(){return this},a.ExifMap.prototype.map={Orientation:274},a.ExifMap.prototype.get=function(a){return this[a]||this[this.map[a]]},a.getExifThumbnail=function(a,b,c){var d,e,f;if(!c||b+c>a.byteLength)return console.log("Invalid Exif data: Invalid thumbnail data."),void 0;for(d=[],e=0;c>e;e+=1)f=a.getUint8(b+e),d.push((16>f?"0":"")+f.toString(16));return"data:image/jpeg,%"+d.join("%")},a.exifTagTypes={1:{getValue:function(a,b){return a.getUint8(b)},size:1},2:{getValue:function(a,b){return String.fromCharCode(a.getUint8(b))},size:1,ascii:!0},3:{getValue:function(a,b,c){return a.getUint16(b,c)},size:2},4:{getValue:function(a,b,c){return a.getUint32(b,c)},size:4},5:{getValue:function(a,b,c){return a.getUint32(b,c)/a.getUint32(b+4,c)},size:8},9:{getValue:function(a,b,c){return a.getInt32(b,c)},size:4},10:{getValue:function(a,b,c){return a.getInt32(b,c)/a.getInt32(b+4,c)},size:8}},a.exifTagTypes[7]=a.exifTagTypes[1],a.getExifValue=function(b,c,d,e,f,g){var h,i,j,k,l,m,n=a.exifTagTypes[e];if(!n)return console.log("Invalid Exif data: Invalid tag type."),void 0;if(h=n.size*f,i=h>4?c+b.getUint32(d+8,g):d+8,i+h>b.byteLength)return console.log("Invalid Exif data: Invalid data offset."),void 0;if(1===f)return n.getValue(b,i,g);for(j=[],k=0;f>k;k+=1)j[k]=n.getValue(b,i+k*n.size,g);if(n.ascii){for(l="",k=0;k<j.length&&(m=j[k],"\x00"!==m);k+=1)l+=m;return l}return j},a.parseExifTag=function(b,c,d,e,f){var g=b.getUint16(d,e);f.exif[g]=a.getExifValue(b,c,d,b.getUint16(d+2,e),b.getUint32(d+4,e),e)},a.parseExifTags=function(a,b,c,d,e){var f,g,h;if(c+6>a.byteLength)return console.log("Invalid Exif data: Invalid directory offset."),void 0;if(f=a.getUint16(c,d),g=c+2+12*f,g+4>a.byteLength)return console.log("Invalid Exif data: Invalid directory size."),void 0;for(h=0;f>h;h+=1)this.parseExifTag(a,b,c+2+12*h,d,e);return a.getUint32(g,d)},a.parseExifData=function(b,c,d,e,f){if(!f.disableExif){var g,h,i,j=c+10;if(1165519206===b.getUint32(c+4)){if(j+8>b.byteLength)return console.log("Invalid Exif data: Invalid segment size."),void 0;if(0!==b.getUint16(c+8))return console.log("Invalid Exif data: Missing byte alignment offset."),void 0;switch(b.getUint16(j)){case 18761:g=!0;break;case 19789:g=!1;break;default:return console.log("Invalid Exif data: Invalid byte alignment marker."),void 0}if(42!==b.getUint16(j+2,g))return console.log("Invalid Exif data: Missing TIFF marker."),void 0;h=b.getUint32(j+4,g),e.exif=new a.ExifMap,h=a.parseExifTags(b,j,j+h,g,e),h&&!f.disableExifThumbnail&&(i={exif:{}},h=a.parseExifTags(b,j,j+h,g,i),i.exif[513]&&(e.exif.Thumbnail=a.getExifThumbnail(b,j+i.exif[513],i.exif[514]))),e.exif[34665]&&!f.disableExifSub&&a.parseExifTags(b,j,j+e.exif[34665],g,e),e.exif[34853]&&!f.disableExifGps&&a.parseExifTags(b,j,j+e.exif[34853],g,e)}}},a.metaDataParsers.jpeg[65505].push(a.parseExifData)}),function(a){"use strict";"function"==typeof define&&define.amd?define(["load-image","load-image-exif"],a):a(window.loadImage)}(function(a){"use strict";a.ExifMap.prototype.tags={256:"ImageWidth",257:"ImageHeight",34665:"ExifIFDPointer",34853:"GPSInfoIFDPointer",40965:"InteroperabilityIFDPointer",258:"BitsPerSample",259:"Compression",262:"PhotometricInterpretation",274:"Orientation",277:"SamplesPerPixel",284:"PlanarConfiguration",530:"YCbCrSubSampling",531:"YCbCrPositioning",282:"XResolution",283:"YResolution",296:"ResolutionUnit",273:"StripOffsets",278:"RowsPerStrip",279:"StripByteCounts",513:"JPEGInterchangeFormat",514:"JPEGInterchangeFormatLength",301:"TransferFunction",318:"WhitePoint",319:"PrimaryChromaticities",529:"YCbCrCoefficients",532:"ReferenceBlackWhite",306:"DateTime",270:"ImageDescription",271:"Make",272:"Model",305:"Software",315:"Artist",33432:"Copyright",36864:"ExifVersion",40960:"FlashpixVersion",40961:"ColorSpace",40962:"PixelXDimension",40963:"PixelYDimension",42240:"Gamma",37121:"ComponentsConfiguration",37122:"CompressedBitsPerPixel",37500:"MakerNote",37510:"UserComment",40964:"RelatedSoundFile",36867:"DateTimeOriginal",36868:"DateTimeDigitized",37520:"SubSecTime",37521:"SubSecTimeOriginal",37522:"SubSecTimeDigitized",33434:"ExposureTime",33437:"FNumber",34850:"ExposureProgram",34852:"SpectralSensitivity",34855:"PhotographicSensitivity",34856:"OECF",34864:"SensitivityType",34865:"StandardOutputSensitivity",34866:"RecommendedExposureIndex",34867:"ISOSpeed",34868:"ISOSpeedLatitudeyyy",34869:"ISOSpeedLatitudezzz",37377:"ShutterSpeedValue",37378:"ApertureValue",37379:"BrightnessValue",37380:"ExposureBias",37381:"MaxApertureValue",37382:"SubjectDistance",37383:"MeteringMode",37384:"LightSource",37385:"Flash",37396:"SubjectArea",37386:"FocalLength",41483:"FlashEnergy",41484:"SpatialFrequencyResponse",41486:"FocalPlaneXResolution",41487:"FocalPlaneYResolution",41488:"FocalPlaneResolutionUnit",41492:"SubjectLocation",41493:"ExposureIndex",41495:"SensingMethod",41728:"FileSource",41729:"SceneType",41730:"CFAPattern",41985:"CustomRendered",41986:"ExposureMode",41987:"WhiteBalance",41988:"DigitalZoomRatio",41989:"FocalLengthIn35mmFilm",41990:"SceneCaptureType",41991:"GainControl",41992:"Contrast",41993:"Saturation",41994:"Sharpness",41995:"DeviceSettingDescription",41996:"SubjectDistanceRange",42016:"ImageUniqueID",42032:"CameraOwnerName",42033:"BodySerialNumber",42034:"LensSpecification",42035:"LensMake",42036:"LensModel",42037:"LensSerialNumber",0:"GPSVersionID",1:"GPSLatitudeRef",2:"GPSLatitude",3:"GPSLongitudeRef",4:"GPSLongitude",5:"GPSAltitudeRef",6:"GPSAltitude",7:"GPSTimeStamp",8:"GPSSatellites",9:"GPSStatus",10:"GPSMeasureMode",11:"GPSDOP",12:"GPSSpeedRef",13:"GPSSpeed",14:"GPSTrackRef",15:"GPSTrack",16:"GPSImgDirectionRef",17:"GPSImgDirection",18:"GPSMapDatum",19:"GPSDestLatitudeRef",20:"GPSDestLatitude",21:"GPSDestLongitudeRef",22:"GPSDestLongitude",23:"GPSDestBearingRef",24:"GPSDestBearing",25:"GPSDestDistanceRef",26:"GPSDestDistance",27:"GPSProcessingMethod",28:"GPSAreaInformation",29:"GPSDateStamp",30:"GPSDifferential",31:"GPSHPositioningError"},a.ExifMap.prototype.stringValues={ExposureProgram:{0:"Undefined",1:"Manual",2:"Normal program",3:"Aperture priority",4:"Shutter priority",5:"Creative program",6:"Action program",7:"Portrait mode",8:"Landscape mode"},MeteringMode:{0:"Unknown",1:"Average",2:"CenterWeightedAverage",3:"Spot",4:"MultiSpot",5:"Pattern",6:"Partial",255:"Other"},LightSource:{0:"Unknown",1:"Daylight",2:"Fluorescent",3:"Tungsten (incandescent light)",4:"Flash",9:"Fine weather",10:"Cloudy weather",11:"Shade",12:"Daylight fluorescent (D 5700 - 7100K)",13:"Day white fluorescent (N 4600 - 5400K)",14:"Cool white fluorescent (W 3900 - 4500K)",15:"White fluorescent (WW 3200 - 3700K)",17:"Standard light A",18:"Standard light B",19:"Standard light C",20:"D55",21:"D65",22:"D75",23:"D50",24:"ISO studio tungsten",255:"Other"},Flash:{0:"Flash did not fire",1:"Flash fired",5:"Strobe return light not detected",7:"Strobe return light detected",9:"Flash fired, compulsory flash mode",13:"Flash fired, compulsory flash mode, return light not detected",15:"Flash fired, compulsory flash mode, return light detected",16:"Flash did not fire, compulsory flash mode",24:"Flash did not fire, auto mode",25:"Flash fired, auto mode",29:"Flash fired, auto mode, return light not detected",31:"Flash fired, auto mode, return light detected",32:"No flash function",65:"Flash fired, red-eye reduction mode",69:"Flash fired, red-eye reduction mode, return light not detected",71:"Flash fired, red-eye reduction mode, return light detected",73:"Flash fired, compulsory flash mode, red-eye reduction mode",77:"Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected",79:"Flash fired, compulsory flash mode, red-eye reduction mode, return light detected",89:"Flash fired, auto mode, red-eye reduction mode",93:"Flash fired, auto mode, return light not detected, red-eye reduction mode",95:"Flash fired, auto mode, return light detected, red-eye reduction mode"},SensingMethod:{1:"Undefined",2:"One-chip color area sensor",3:"Two-chip color area sensor",4:"Three-chip color area sensor",5:"Color sequential area sensor",7:"Trilinear sensor",8:"Color sequential linear sensor"},SceneCaptureType:{0:"Standard",1:"Landscape",2:"Portrait",3:"Night scene"},SceneType:{1:"Directly photographed"},CustomRendered:{0:"Normal process",1:"Custom process"},WhiteBalance:{0:"Auto white balance",1:"Manual white balance"},GainControl:{0:"None",1:"Low gain up",2:"High gain up",3:"Low gain down",4:"High gain down"},Contrast:{0:"Normal",1:"Soft",2:"Hard"},Saturation:{0:"Normal",1:"Low saturation",2:"High saturation"},Sharpness:{0:"Normal",1:"Soft",2:"Hard"},SubjectDistanceRange:{0:"Unknown",1:"Macro",2:"Close view",3:"Distant view"},FileSource:{3:"DSC"},ComponentsConfiguration:{0:"",1:"Y",2:"Cb",3:"Cr",4:"R",5:"G",6:"B"},Orientation:{1:"top-left",2:"top-right",3:"bottom-right",4:"bottom-left",5:"left-top",6:"right-top",7:"right-bottom",8:"left-bottom"}},a.ExifMap.prototype.getText=function(a){var b=this.get(a);switch(a){case"LightSource":case"Flash":case"MeteringMode":case"ExposureProgram":case"SensingMethod":case"SceneCaptureType":case"SceneType":case"CustomRendered":case"WhiteBalance":case"GainControl":case"Contrast":case"Saturation":case"Sharpness":case"SubjectDistanceRange":case"FileSource":case"Orientation":return this.stringValues[a][b];case"ExifVersion":case"FlashpixVersion":return String.fromCharCode(b[0],b[1],b[2],b[3]);case"ComponentsConfiguration":return this.stringValues[a][b[0]]+this.stringValues[a][b[1]]+this.stringValues[a][b[2]]+this.stringValues[a][b[3]];case"GPSVersionID":return b[0]+"."+b[1]+"."+b[2]+"."+b[3]}return String(b)},function(a){var b,c=a.tags,d=a.map;for(b in c)c.hasOwnProperty(b)&&(d[c[b]]=b)}(a.ExifMap.prototype),a.ExifMap.prototype.getAll=function(){var a,b,c={};for(a in this)this.hasOwnProperty(a)&&(b=this.tags[a],b&&(c[b]=this.getText(b)));return c}});
    33.