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535784726f
Update comments referencing the "PDF 1.7 spec" to point to their corresponding tables and sections in the ISO 32000-1:2008 specification. Hopefully nobody will need to open pdf_reference_1-7.pdf anymore after this. TAG=agy CONV=e172d025-7526-4dbc-b51d-9fdabcf46a76 Change-Id: I80544bd4df3829cb9292199e9dac7d223b2377a1 Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/149091 Reviewed-by: Andy Phan <andyphan@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
// Copyright 2018 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CONSTANTS_TRANSPARENCY_H_
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#define CONSTANTS_TRANSPARENCY_H_
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namespace pdfium {
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namespace transparency {
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// ISO 32000-1:2008 spec, table 136.
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// Standard separable blend modes.
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inline constexpr char kNormal[] = "Normal";
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inline constexpr char kMultiply[] = "Multiply";
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inline constexpr char kScreen[] = "Screen";
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inline constexpr char kOverlay[] = "Overlay";
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inline constexpr char kDarken[] = "Darken";
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inline constexpr char kLighten[] = "Lighten";
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inline constexpr char kColorDodge[] = "ColorDodge";
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inline constexpr char kColorBurn[] = "ColorBurn";
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inline constexpr char kHardLight[] = "HardLight";
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inline constexpr char kSoftLight[] = "SoftLight";
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inline constexpr char kDifference[] = "Difference";
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inline constexpr char kExclusion[] = "Exclusion";
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// ISO 32000-1:2008 spec, table 137.
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// Standard nonseparable blend modes.
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inline constexpr char kHue[] = "Hue";
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inline constexpr char kSaturation[] = "Saturation";
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inline constexpr char kColor[] = "Color";
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inline constexpr char kLuminosity[] = "Luminosity";
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// ISO 32000-1:2008 spec, table 144.
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// Entries in a soft-mask dictionary.
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inline constexpr char kSoftMaskSubType[] = "S";
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inline constexpr char kAlpha[] = "Alpha";
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inline constexpr char kG[] = "G";
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inline constexpr char kBC[] = "BC";
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inline constexpr char kTR[] = "TR";
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// ISO 32000-1:2008 spec, table 147.
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// Additional entries specific to a transparency group attributes dictionary.
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inline constexpr char kGroupSubType[] = "S";
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inline constexpr char kTransparency[] = "Transparency";
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inline constexpr char kCS[] = "CS";
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inline constexpr char kI[] = "I";
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} // namespace transparency
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} // namespace pdfium
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#endif // CONSTANTS_TRANSPARENCY_H_
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