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703 lines
28 KiB
C++
703 lines
28 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// included header files
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#include "psdimage.hpp"
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#include "basicio.hpp"
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#include "config.h"
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#include "enforce.hpp"
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#include "error.hpp"
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#include "futils.hpp"
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#include "image.hpp"
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#include "jpgimage.hpp"
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#include "photoshop.hpp"
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#include <iostream>
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// Todo: Consolidate with existing code in struct Photoshop (jpgimage.hpp):
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// Extend this helper to a proper class with all required functionality,
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// then move it here or into a separate file?
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//! @cond IGNORE
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struct PhotoshopResourceBlock {
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uint32_t resourceType; // one of the markers in Photoshop::irbId_[]
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uint16_t resourceId;
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unsigned char resourceName[2]; // Pascal string (length byte + characters), padded to an even size -- this assumes
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// the empty string
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uint32_t resourceDataSize;
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};
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//! @endcond
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// Photoshop resource IDs (Cf.
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// <http://search.cpan.org/~bettelli/Image-MetaData-JPEG-0.15/lib/Image/MetaData/JPEG/TagLists.pod>)
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enum {
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kPhotoshopResourceID_Photoshop2Info =
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0x03e8, // [obsolete -- Photoshop 2.0 only] General information -- contains five 2-byte values: number of
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// channels, rows, columns, depth and mode
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kPhotoshopResourceID_MacintoshClassicPrintInfo = 0x03e9, // [optional] Macintosh classic print record (120 bytes)
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kPhotoshopResourceID_MacintoshCarbonPrintInfo =
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0x03ea, // [optional] Macintosh carbon print info (variable-length XML format)
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kPhotoshopResourceID_Photoshop2ColorTable = 0x03eb, // [obsolete -- Photoshop 2.0 only] Indexed color table
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kPhotoshopResourceID_ResolutionInfo = 0x03ed, // PhotoshopResolutionInfo structure (see below)
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kPhotoshopResourceID_AlphaChannelsNames = 0x03ee, // as a series of Pstrings
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kPhotoshopResourceID_DisplayInfo = 0x03ef, // see appendix A in Photoshop SDK
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kPhotoshopResourceID_PStringCaption = 0x03f0, // [optional] the caption, as a Pstring
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kPhotoshopResourceID_BorderInformation = 0x03f1, // border width and units
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kPhotoshopResourceID_BackgroundColor = 0x03f2, // see additional Adobe information
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kPhotoshopResourceID_PrintFlags = 0x03f3, // labels, crop marks, colour bars, ecc...
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kPhotoshopResourceID_BWHalftoningInfo = 0x03f4, // Gray-scale and multich. half-toning info
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kPhotoshopResourceID_ColorHalftoningInfo = 0x03f5, // Colour half-toning information
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kPhotoshopResourceID_DuotoneHalftoningInfo = 0x03f6, // Duo-tone half-toning information
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kPhotoshopResourceID_BWTransferFunc = 0x03f7, // Gray-scale and multich. transfer function
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kPhotoshopResourceID_ColorTransferFuncs = 0x03f8, // Colour transfer function
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kPhotoshopResourceID_DuotoneTransferFuncs = 0x03f9, // Duo-tone transfer function
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kPhotoshopResourceID_DuotoneImageInfo = 0x03fa, // Duo-tone image information
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kPhotoshopResourceID_EffectiveBW = 0x03fb, // two bytes for the effective black and white values
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kPhotoshopResourceID_ObsoletePhotoshopTag1 = 0x03fc, // [obsolete]
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kPhotoshopResourceID_EPSOptions = 0x03fd, // Encapsulated Postscript options
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kPhotoshopResourceID_QuickMaskInfo = 0x03fe, // Quick Mask information. 2 bytes containing Quick Mask channel ID,
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// 1 byte boolean indicating whether the mask was initially empty.
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kPhotoshopResourceID_ObsoletePhotoshopTag2 = 0x03ff, // [obsolete]
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kPhotoshopResourceID_LayerStateInfo = 0x0400, // index of target layer (0 means bottom)
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kPhotoshopResourceID_WorkingPathInfo = 0x0401, // should not be saved to the file
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kPhotoshopResourceID_LayersGroupInfo = 0x0402, // for grouping layers together
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kPhotoshopResourceID_ObsoletePhotoshopTag3 = 0x0403, // [obsolete] ??
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kPhotoshopResourceID_IPTC_NAA = 0x0404, // IPTC/NAA data
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kPhotoshopResourceID_RawImageMode = 0x0405, // image mode for raw format files
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kPhotoshopResourceID_JPEGQuality = 0x0406, // [private]
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kPhotoshopResourceID_GridGuidesInfo = 0x0408, // see additional Adobe information
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kPhotoshopResourceID_ThumbnailResource = 0x0409, // see additional Adobe information
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kPhotoshopResourceID_CopyrightFlag = 0x040a, // true if image is copyrighted
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kPhotoshopResourceID_URL = 0x040b, // text string with a resource locator
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kPhotoshopResourceID_ThumbnailResource2 = 0x040c, // see additional Adobe information
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kPhotoshopResourceID_GlobalAngle = 0x040d, // global lighting angle for effects layer
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kPhotoshopResourceID_ColorSamplersResource = 0x040e, // see additional Adobe information
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kPhotoshopResourceID_ICCProfile = 0x040f, // see notes from Internat. Color Consortium
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kPhotoshopResourceID_Watermark = 0x0410, // one byte
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kPhotoshopResourceID_ICCUntagged = 0x0411, // 1 means intentionally untagged
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kPhotoshopResourceID_EffectsVisible = 0x0412, // 1 byte to show/hide all effects layers
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kPhotoshopResourceID_SpotHalftone = 0x0413, // version, length and data
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kPhotoshopResourceID_IDsBaseValue = 0x0414, // base value for new layers ID's
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kPhotoshopResourceID_UnicodeAlphaNames = 0x0415, // length plus Unicode string
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kPhotoshopResourceID_IndexedColourTableCount = 0x0416, // [Photoshop 6.0 and later] 2 bytes
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kPhotoshopResourceID_TransparentIndex = 0x0417, // [Photoshop 6.0 and later] 2 bytes
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kPhotoshopResourceID_GlobalAltitude = 0x0419, // [Photoshop 6.0 and later] 4 bytes
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kPhotoshopResourceID_Slices = 0x041a, // [Photoshop 6.0 and later] see additional Adobe info
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kPhotoshopResourceID_WorkflowURL = 0x041b, // [Photoshop 6.0 and later] 4 bytes length + Unicode string
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kPhotoshopResourceID_JumpToXPEP = 0x041c, // [Photoshop 6.0 and later] see additional Adobe info
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kPhotoshopResourceID_AlphaIdentifiers = 0x041d, // [Photoshop 6.0 and later] 4*(n+1) bytes
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kPhotoshopResourceID_URLList = 0x041e, // [Photoshop 6.0 and later] structured Unicode URL's
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kPhotoshopResourceID_VersionInfo = 0x0421, // [Photoshop 6.0 and later] see additional Adobe info
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kPhotoshopResourceID_ExifInfo = 0x0422, // [Photoshop 7.0?] Exif metadata
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kPhotoshopResourceID_XMPPacket =
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0x0424, // [Photoshop 7.0?] XMP packet -- see http://www.adobe.com/devnet/xmp/pdfs/xmp_specification.pdf
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kPhotoshopResourceID_ClippingPathName = 0x0bb7, // [Photoshop 6.0 and later] name of clipping path
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kPhotoshopResourceID_MorePrintFlags =
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0x2710 // [Photoshop 6.0 and later] Print flags information. 2 bytes version (=1), 1 byte center crop marks, 1
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// byte (=0), 4 bytes bleed width value, 2 bytes bleed width scale.
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};
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// *****************************************************************************
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// class member definitions
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namespace Exiv2 {
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PsdImage::PsdImage(BasicIo::UniquePtr io) : Image(ImageType::psd, mdExif | mdIptc | mdXmp, std::move(io)) {
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} // PsdImage::PsdImage
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std::string PsdImage::mimeType() const {
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return "image/x-photoshop";
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}
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void PsdImage::setComment(const std::string&) {
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// not supported
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throw(Error(ErrorCode::kerInvalidSettingForImage, "Image comment", "Photoshop"));
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}
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void PsdImage::readMetadata() {
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#ifdef EXIV2_DEBUG_MESSAGES
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std::cerr << "Exiv2::PsdImage::readMetadata: Reading Photoshop file " << io_->path() << "\n";
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#endif
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if (io_->open() != 0) {
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throw Error(ErrorCode::kerDataSourceOpenFailed, io_->path(), strError());
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}
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IoCloser closer(*io_);
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// Ensure that this is the correct image type
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if (!isPsdType(*io_, false)) {
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if (io_->error() || io_->eof())
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throw Error(ErrorCode::kerFailedToReadImageData);
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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clearMetadata();
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/*
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The Photoshop header goes as follows -- all numbers are in big-endian byte order:
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offset length name description
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====== ======= ========= =========
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0 4 bytes signature always '8BPS'
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4 2 bytes version always equal to 1
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6 6 bytes reserved must be zero
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12 2 bytes channels number of channels in the image, including alpha channels (1 to 24)
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14 4 bytes rows the height of the image in pixels
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18 4 bytes columns the width of the image in pixels
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22 2 bytes depth the number of bits per channel
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24 2 bytes mode the color mode of the file; Supported values are: Bitmap=0; Grayscale=1;
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Indexed=2; RGB=3; CMYK=4; Multichannel=7; Duotone=8; Lab=9
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*/
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byte buf[26];
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if (io_->read(buf, 26) != 26) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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pixelWidth_ = getLong(buf + 18, bigEndian);
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pixelHeight_ = getLong(buf + 14, bigEndian);
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// immediately following the image header is the color mode data section,
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// the first four bytes of which specify the byte size of the whole section
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if (io_->read(buf, 4) != 4) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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// skip it
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uint32_t colorDataLength = getULong(buf, bigEndian);
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if (io_->seek(colorDataLength, BasicIo::cur)) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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// after the color data section, comes a list of resource blocks, preceded by the total byte size
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if (io_->read(buf, 4) != 4) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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uint32_t resourcesLength = getULong(buf, bigEndian);
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Internal::enforce(resourcesLength < io_->size(), Exiv2::ErrorCode::kerCorruptedMetadata);
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while (resourcesLength > 0) {
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Internal::enforce(resourcesLength >= 8, Exiv2::ErrorCode::kerCorruptedMetadata);
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resourcesLength -= 8;
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if (io_->read(buf, 8) != 8) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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if (!Photoshop::isIrb(buf)) {
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break; // bad resource type
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}
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uint16_t resourceId = getUShort(buf + 4, bigEndian);
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uint32_t resourceNameLength = buf[6] & ~1;
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// skip the resource name, plus any padding
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Internal::enforce(resourceNameLength <= resourcesLength, Exiv2::ErrorCode::kerCorruptedMetadata);
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resourcesLength -= resourceNameLength;
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io_->seek(resourceNameLength, BasicIo::cur);
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// read resource size
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Internal::enforce(resourcesLength >= 4, Exiv2::ErrorCode::kerCorruptedMetadata);
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resourcesLength -= 4;
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if (io_->read(buf, 4) != 4) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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uint32_t resourceSize = getULong(buf, bigEndian);
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const size_t curOffset = io_->tell();
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#ifdef EXIV2_DEBUG_MESSAGES
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std::cerr << std::hex << "resourceId: " << resourceId << std::dec << " length: " << resourceSize << std::hex
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<< "\n";
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#endif
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Internal::enforce(resourceSize <= resourcesLength, Exiv2::ErrorCode::kerCorruptedMetadata);
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readResourceBlock(resourceId, resourceSize);
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resourceSize = (resourceSize + 1) & ~1; // pad to even
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Internal::enforce(resourceSize <= resourcesLength, Exiv2::ErrorCode::kerCorruptedMetadata);
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resourcesLength -= resourceSize;
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io_->seek(curOffset + resourceSize, BasicIo::beg);
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}
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} // PsdImage::readMetadata
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void PsdImage::readResourceBlock(uint16_t resourceId, uint32_t resourceSize) {
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switch (resourceId) {
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case kPhotoshopResourceID_IPTC_NAA: {
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DataBuf rawIPTC(resourceSize);
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io_->read(rawIPTC.data(), rawIPTC.size());
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if (io_->error() || io_->eof())
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throw Error(ErrorCode::kerFailedToReadImageData);
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if (IptcParser::decode(iptcData_, rawIPTC.c_data(), rawIPTC.size())) {
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#ifndef SUPPRESS_WARNINGS
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EXV_WARNING << "Failed to decode IPTC metadata.\n";
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#endif
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iptcData_.clear();
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}
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break;
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}
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case kPhotoshopResourceID_ExifInfo: {
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DataBuf rawExif(resourceSize);
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io_->read(rawExif.data(), rawExif.size());
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if (io_->error() || io_->eof())
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throw Error(ErrorCode::kerFailedToReadImageData);
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ByteOrder bo = ExifParser::decode(exifData_, rawExif.c_data(), rawExif.size());
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setByteOrder(bo);
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if (!rawExif.empty() && byteOrder() == invalidByteOrder) {
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#ifndef SUPPRESS_WARNINGS
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EXV_WARNING << "Failed to decode Exif metadata.\n";
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#endif
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exifData_.clear();
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}
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break;
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}
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case kPhotoshopResourceID_XMPPacket: {
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DataBuf xmpPacket(resourceSize);
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io_->read(xmpPacket.data(), xmpPacket.size());
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if (io_->error() || io_->eof())
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throw Error(ErrorCode::kerFailedToReadImageData);
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xmpPacket_.assign(xmpPacket.c_str(), xmpPacket.size());
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if (!xmpPacket_.empty() && XmpParser::decode(xmpData_, xmpPacket_)) {
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#ifndef SUPPRESS_WARNINGS
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EXV_WARNING << "Failed to decode XMP metadata.\n";
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#endif
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}
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break;
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}
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// - PS 4.0 preview data is fetched from ThumbnailResource
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// - PS >= 5.0 preview data is fetched from ThumbnailResource2
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case kPhotoshopResourceID_ThumbnailResource:
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case kPhotoshopResourceID_ThumbnailResource2: {
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/*
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Photoshop thumbnail resource header
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offset length name description
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====== ======== ==== ===========
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0 4 bytes format = 1 (kJpegRGB). Also supports kRawRGB (0).
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4 4 bytes width Width of thumbnail in pixels.
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8 4 bytes height Height of thumbnail in pixels.
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12 4 bytes widthbytes Padded row bytes as (width * bitspixel + 31) / 32 * 4.
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16 4 bytes size Total size as widthbytes * height * planes
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20 4 bytes compressedsize Size after compression. Used for consistency check.
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24 2 bytes bitspixel = 24. Bits per pixel.
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26 2 bytes planes = 1. Number of planes.
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28 variable data JFIF data in RGB format.
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Note: For resource ID 1033 the data is in BGR format.
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*/
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byte buf[28];
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if (io_->read(buf, 28) != 28) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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}
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NativePreview nativePreview;
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nativePreview.position_ = io_->tell();
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nativePreview.size_ = getLong(buf + 20, bigEndian); // compressedsize
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nativePreview.width_ = getLong(buf + 4, bigEndian);
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nativePreview.height_ = getLong(buf + 8, bigEndian);
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const uint32_t format = getLong(buf + 0, bigEndian);
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if (nativePreview.size_ > 0 && nativePreview.position_ > 0) {
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io_->seek(static_cast<long>(nativePreview.size_), BasicIo::cur);
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if (io_->error() || io_->eof())
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throw Error(ErrorCode::kerFailedToReadImageData);
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if (format == 1) {
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nativePreview.filter_ = "";
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nativePreview.mimeType_ = "image/jpeg";
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nativePreviews_.push_back(std::move(nativePreview));
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} else {
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// unsupported format of native preview
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}
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}
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break;
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}
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default: {
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break;
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}
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}
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} // PsdImage::readResourceBlock
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void PsdImage::writeMetadata() {
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if (io_->open() != 0) {
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throw Error(ErrorCode::kerDataSourceOpenFailed, io_->path(), strError());
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}
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IoCloser closer(*io_);
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MemIo tempIo;
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doWriteMetadata(tempIo); // may throw
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io_->close();
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io_->transfer(tempIo); // may throw
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} // PsdImage::writeMetadata
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void PsdImage::doWriteMetadata(BasicIo& outIo) {
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if (!io_->isopen())
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throw Error(ErrorCode::kerInputDataReadFailed);
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if (!outIo.isopen())
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throw Error(ErrorCode::kerImageWriteFailed);
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#ifdef EXIV2_DEBUG_MESSAGES
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std::cout << "Exiv2::PsdImage::doWriteMetadata: Writing PSD file " << io_->path() << "\n";
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std::cout << "Exiv2::PsdImage::doWriteMetadata: tmp file created " << outIo.path() << "\n";
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#endif
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// Ensure that this is the correct image type
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if (!isPsdType(*io_, true)) {
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if (io_->error() || io_->eof())
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throw Error(ErrorCode::kerInputDataReadFailed);
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throw Error(ErrorCode::kerNoImageInInputData);
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}
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io_->seek(0, BasicIo::beg); // rewind
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DataBuf lbuf(4096);
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byte buf[8];
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// Get Photoshop header from original file
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byte psd_head[26];
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if (io_->read(psd_head, 26) != 26)
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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// Write Photoshop header data out to new PSD file
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if (outIo.write(psd_head, 26) != 26)
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throw Error(ErrorCode::kerImageWriteFailed);
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// Read colorDataLength from original PSD
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if (io_->read(buf, 4) != 4)
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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uint32_t colorDataLength = getULong(buf, bigEndian);
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// Write colorDataLength
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ul2Data(buf, colorDataLength, bigEndian);
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if (outIo.write(buf, 4) != 4)
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throw Error(ErrorCode::kerImageWriteFailed);
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#ifdef EXIV2_DEBUG_MESSAGES
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std::cerr << std::dec << "colorDataLength: " << colorDataLength << "\n";
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#endif
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// Copy colorData
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size_t readTotal = 0;
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while (readTotal < colorDataLength) {
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size_t toRead =
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(colorDataLength - readTotal) < lbuf.size() ? static_cast<size_t>(colorDataLength) - readTotal : lbuf.size();
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if (io_->read(lbuf.data(), toRead) != toRead)
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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readTotal += toRead;
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if (outIo.write(lbuf.c_data(), toRead) != toRead)
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throw Error(ErrorCode::kerImageWriteFailed);
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}
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if (outIo.error())
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throw Error(ErrorCode::kerImageWriteFailed);
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const size_t resLenOffset = io_->tell(); // remember for later update
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// Read length of all resource blocks from original PSD
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if (io_->read(buf, 4) != 4)
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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uint32_t oldResLength = getULong(buf, bigEndian);
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uint32_t newResLength = 0;
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// Write oldResLength (will be updated later)
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ul2Data(buf, oldResLength, bigEndian);
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if (outIo.write(buf, 4) != 4)
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throw Error(ErrorCode::kerImageWriteFailed);
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#ifdef EXIV2_DEBUG_MESSAGES
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std::cerr << std::dec << "oldResLength: " << oldResLength << "\n";
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#endif
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// Iterate over original resource blocks.
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// Replace or insert IPTC, EXIF and XMP
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// Original resource blocks assumed to be sorted ASC
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bool iptcDone = false;
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bool exifDone = false;
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bool xmpDone = false;
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while (oldResLength > 0) {
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if (io_->read(buf, 8) != 8)
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throw Error(ErrorCode::kerNotAnImage, "Photoshop");
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// read resource type and ID
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uint32_t resourceType = getULong(buf, bigEndian);
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if (!Photoshop::isIrb(buf)) {
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throw Error(ErrorCode::kerNotAnImage, "Photoshop"); // bad resource type
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}
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uint16_t resourceId = getUShort(buf + 4, bigEndian);
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uint32_t resourceNameLength = buf[6];
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|
uint32_t adjResourceNameLen = resourceNameLength & ~1;
|
|
unsigned char resourceNameFirstChar = buf[7];
|
|
|
|
// read rest of resource name, plus any padding
|
|
DataBuf resName(256);
|
|
if (io_->read(resName.data(), adjResourceNameLen) != adjResourceNameLen)
|
|
throw Error(ErrorCode::kerNotAnImage, "Photoshop");
|
|
|
|
// read resource size (actual length w/o padding!)
|
|
if (io_->read(buf, 4) != 4)
|
|
throw Error(ErrorCode::kerNotAnImage, "Photoshop");
|
|
|
|
uint32_t resourceSize = getULong(buf, bigEndian);
|
|
uint32_t pResourceSize = (resourceSize + 1) & ~1; // padded resource size
|
|
const size_t curOffset = io_->tell();
|
|
|
|
// Write IPTC_NAA resource block
|
|
if ((resourceId == kPhotoshopResourceID_IPTC_NAA || resourceId > kPhotoshopResourceID_IPTC_NAA) && !iptcDone) {
|
|
newResLength += writeIptcData(iptcData_, outIo);
|
|
iptcDone = true;
|
|
}
|
|
|
|
// Write ExifInfo resource block
|
|
else if ((resourceId == kPhotoshopResourceID_ExifInfo || resourceId > kPhotoshopResourceID_ExifInfo) && !exifDone) {
|
|
newResLength += writeExifData(exifData_, outIo);
|
|
exifDone = true;
|
|
}
|
|
|
|
// Write XMPpacket resource block
|
|
else if ((resourceId == kPhotoshopResourceID_XMPPacket || resourceId > kPhotoshopResourceID_XMPPacket) &&
|
|
!xmpDone) {
|
|
newResLength += writeXmpData(xmpData_, outIo);
|
|
xmpDone = true;
|
|
}
|
|
|
|
// Copy all other resource blocks
|
|
if (resourceId != kPhotoshopResourceID_IPTC_NAA && resourceId != kPhotoshopResourceID_ExifInfo &&
|
|
resourceId != kPhotoshopResourceID_XMPPacket) {
|
|
#ifdef EXIV2_DEBUG_MESSAGES
|
|
std::cerr << std::hex << "copy : resourceType: " << resourceType << "\n";
|
|
std::cerr << std::hex << "copy : resourceId: " << resourceId << "\n";
|
|
std::cerr << std::dec;
|
|
#endif
|
|
// Copy resource block to new PSD file
|
|
ul2Data(buf, resourceType, bigEndian);
|
|
if (outIo.write(buf, 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
us2Data(buf, resourceId, bigEndian);
|
|
if (outIo.write(buf, 2) != 2)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
// Write resource name as Pascal string
|
|
buf[0] = resourceNameLength & 0x00ff;
|
|
if (outIo.write(buf, 1) != 1)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
buf[0] = resourceNameFirstChar;
|
|
if (outIo.write(buf, 1) != 1)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
if (outIo.write(resName.c_data(), adjResourceNameLen) != static_cast<size_t>(adjResourceNameLen))
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
ul2Data(buf, resourceSize, bigEndian);
|
|
if (outIo.write(buf, 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
|
|
readTotal = 0;
|
|
while (readTotal < pResourceSize) {
|
|
/// \todo almost same code as in lines 403-410. Factor out & reuse!
|
|
size_t toRead = (pResourceSize - readTotal) < lbuf.size() ? pResourceSize - readTotal : lbuf.size();
|
|
if (io_->read(lbuf.data(), toRead) != toRead) {
|
|
throw Error(ErrorCode::kerNotAnImage, "Photoshop");
|
|
}
|
|
readTotal += toRead;
|
|
if (outIo.write(lbuf.c_data(), toRead) != toRead)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
}
|
|
if (outIo.error())
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
newResLength += pResourceSize + adjResourceNameLen + 12;
|
|
}
|
|
|
|
io_->seek(curOffset + pResourceSize, BasicIo::beg);
|
|
oldResLength -= (12 + adjResourceNameLen + pResourceSize);
|
|
}
|
|
|
|
// Append IPTC_NAA resource block, if not yet written
|
|
if (!iptcDone) {
|
|
newResLength += writeIptcData(iptcData_, outIo);
|
|
iptcDone = true;
|
|
}
|
|
|
|
// Append ExifInfo resource block, if not yet written
|
|
if (!exifDone) {
|
|
newResLength += writeExifData(exifData_, outIo);
|
|
}
|
|
|
|
// Append XmpPacket resource block, if not yet written
|
|
if (!xmpDone) {
|
|
newResLength += writeXmpData(xmpData_, outIo);
|
|
}
|
|
|
|
// Populate the fake data, only make sense for remoteio, httpio and sshio.
|
|
// it avoids allocating memory for parts of the file that contain image-date.
|
|
io_->populateFakeData();
|
|
|
|
// Copy remaining data
|
|
size_t readSize = io_->read(lbuf.data(), lbuf.size());
|
|
while (readSize != 0) {
|
|
if (outIo.write(lbuf.c_data(), readSize) != readSize)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
readSize = io_->read(lbuf.data(), lbuf.size());
|
|
}
|
|
if (outIo.error())
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
|
|
// Update length of resources
|
|
#ifdef EXIV2_DEBUG_MESSAGES
|
|
std::cerr << "newResLength: " << newResLength << "\n";
|
|
#endif
|
|
outIo.seek(resLenOffset, BasicIo::beg);
|
|
ul2Data(buf, newResLength, bigEndian);
|
|
if (outIo.write(buf, 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
|
|
} // PsdImage::doWriteMetadata
|
|
|
|
uint32_t PsdImage::writeIptcData(const IptcData& iptcData, BasicIo& out) {
|
|
uint32_t resLength = 0;
|
|
byte buf[8];
|
|
|
|
if (iptcData.count() > 0) {
|
|
DataBuf rawIptc = IptcParser::encode(iptcData);
|
|
if (!rawIptc.empty()) {
|
|
#ifdef EXIV2_DEBUG_MESSAGES
|
|
std::cerr << std::hex << "write: resourceId: " << kPhotoshopResourceID_IPTC_NAA << "\n";
|
|
std::cerr << std::dec << "Writing IPTC_NAA: size: " << rawIptc.size() << "\n";
|
|
#endif
|
|
if (out.write(reinterpret_cast<const byte*>(Photoshop::irbId_.front()), 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
us2Data(buf, kPhotoshopResourceID_IPTC_NAA, bigEndian);
|
|
if (out.write(buf, 2) != 2)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
us2Data(buf, 0, bigEndian); // NULL resource name
|
|
if (out.write(buf, 2) != 2)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
ul2Data(buf, static_cast<uint32_t>(rawIptc.size()), bigEndian);
|
|
if (out.write(buf, 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
// Write encoded Iptc data
|
|
if (out.write(rawIptc.c_data(), rawIptc.size()) != rawIptc.size())
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
resLength += static_cast<uint32_t>(rawIptc.size()) + 12;
|
|
if (rawIptc.size() & 1) // even padding
|
|
{
|
|
buf[0] = 0;
|
|
if (out.write(buf, 1) != 1)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
resLength++;
|
|
}
|
|
}
|
|
}
|
|
return resLength;
|
|
} // PsdImage::writeIptcData
|
|
|
|
uint32_t PsdImage::writeExifData(const ExifData& exifData, BasicIo& out) {
|
|
uint32_t resLength = 0;
|
|
byte buf[8];
|
|
|
|
if (!exifData.empty()) {
|
|
Blob blob;
|
|
ByteOrder bo = byteOrder();
|
|
if (bo == invalidByteOrder) {
|
|
bo = littleEndian;
|
|
setByteOrder(bo);
|
|
}
|
|
ExifParser::encode(blob, bo, exifData);
|
|
|
|
if (!blob.empty()) {
|
|
#ifdef EXIV2_DEBUG_MESSAGES
|
|
std::cerr << std::hex << "write: resourceId: " << kPhotoshopResourceID_ExifInfo << "\n";
|
|
std::cerr << std::dec << "Writing ExifInfo: size: " << blob.size() << "\n";
|
|
#endif
|
|
if (out.write(reinterpret_cast<const byte*>(Photoshop::irbId_.front()), 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
us2Data(buf, kPhotoshopResourceID_ExifInfo, bigEndian);
|
|
if (out.write(buf, 2) != 2)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
us2Data(buf, 0, bigEndian); // NULL resource name
|
|
if (out.write(buf, 2) != 2)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
ul2Data(buf, static_cast<uint32_t>(blob.size()), bigEndian);
|
|
if (out.write(buf, 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
// Write encoded Exif data
|
|
if (out.write(blob.data(), blob.size()) != blob.size())
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
resLength += static_cast<long>(blob.size()) + 12;
|
|
if (blob.size() & 1) // even padding
|
|
{
|
|
buf[0] = 0;
|
|
if (out.write(buf, 1) != 1)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
resLength++;
|
|
}
|
|
}
|
|
}
|
|
return resLength;
|
|
} // PsdImage::writeExifData
|
|
|
|
uint32_t PsdImage::writeXmpData(const XmpData& xmpData, BasicIo& out) const {
|
|
std::string xmpPacket;
|
|
uint32_t resLength = 0;
|
|
byte buf[8];
|
|
|
|
#ifdef EXIV2_DEBUG_MESSAGES
|
|
std::cerr << "writeXmpFromPacket(): " << writeXmpFromPacket() << "\n";
|
|
#endif
|
|
// writeXmpFromPacket(true);
|
|
if (!writeXmpFromPacket() && XmpParser::encode(xmpPacket, xmpData) > 1) {
|
|
#ifndef SUPPRESS_WARNINGS
|
|
EXV_ERROR << "Failed to encode XMP metadata.\n";
|
|
#endif
|
|
}
|
|
|
|
if (!xmpPacket.empty()) {
|
|
#ifdef EXIV2_DEBUG_MESSAGES
|
|
std::cerr << std::hex << "write: resourceId: " << kPhotoshopResourceID_XMPPacket << "\n";
|
|
std::cerr << std::dec << "Writing XMPPacket: size: " << xmpPacket.size() << "\n";
|
|
#endif
|
|
if (out.write(reinterpret_cast<const byte*>(Photoshop::irbId_.front()), 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
us2Data(buf, kPhotoshopResourceID_XMPPacket, bigEndian);
|
|
if (out.write(buf, 2) != 2)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
us2Data(buf, 0, bigEndian); // NULL resource name
|
|
if (out.write(buf, 2) != 2)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
ul2Data(buf, static_cast<uint32_t>(xmpPacket.size()), bigEndian);
|
|
if (out.write(buf, 4) != 4)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
// Write XMPPacket
|
|
if (out.write(reinterpret_cast<const byte*>(xmpPacket.data()), xmpPacket.size()) != xmpPacket.size())
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
if (out.error())
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
resLength += static_cast<uint32_t>(xmpPacket.size()) + 12;
|
|
if (xmpPacket.size() & 1) // even padding
|
|
{
|
|
buf[0] = 0;
|
|
if (out.write(buf, 1) != 1)
|
|
throw Error(ErrorCode::kerImageWriteFailed);
|
|
resLength++;
|
|
}
|
|
}
|
|
return resLength;
|
|
} // PsdImage::writeXmpData
|
|
|
|
// *************************************************************************
|
|
// free functions
|
|
Image::UniquePtr newPsdInstance(BasicIo::UniquePtr io, bool /*create*/) {
|
|
auto image = std::make_unique<PsdImage>(std::move(io));
|
|
if (!image->good()) {
|
|
return nullptr;
|
|
}
|
|
return image;
|
|
}
|
|
|
|
bool isPsdType(BasicIo& iIo, bool advance) {
|
|
const int32_t len = 6;
|
|
const unsigned char PsdHeader[6] = {'8', 'B', 'P', 'S', 0, 1};
|
|
byte buf[len];
|
|
iIo.read(buf, len);
|
|
if (iIo.error() || iIo.eof()) {
|
|
return false;
|
|
}
|
|
bool matched = (memcmp(buf, PsdHeader, len) == 0);
|
|
if (!advance || !matched) {
|
|
iIo.seek(-len, BasicIo::cur);
|
|
}
|
|
|
|
return matched;
|
|
}
|
|
} // namespace Exiv2
|