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Extract color model and transfer functions into their own files
https://bugs.webkit.org/show_bug.cgi?id=221105 Reviewed by Tim Horton. Things are getting a bit cramped in ColorTypes.h and ColorConversions. This extracts the color models into ColorModels.h and gamma transfer functions into ColorTransferFunctions.h and generalized the transfer functions a bit to reduce the code size. * Headers.cmake: * WebCore.xcodeproj/project.pbxproj: * platform/graphics/ColorModels.h: Added. * platform/graphics/ColorTransferFunctions.h: Added. * platform/graphics/ColorConversion.cpp: * platform/graphics/ColorConversion.h: * platform/graphics/ColorTypes.h: Move code to new files. Canonical link: https://commits.webkit.org/233485@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@272066 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Copyright (C) 2021 Apple Inc. All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | ||
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | ||
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | ||
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | ||
| * THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
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| #pragma once | ||
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| namespace WebCore { | ||
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| template<typename> struct AlphaTraits; | ||
| template<typename> struct ColorComponentRange; | ||
| template<typename> struct ExtendedRGBModel; | ||
| template<typename> struct HSLModel; | ||
| template<typename> struct LCHModel; | ||
| template<typename> struct LabModel; | ||
| template<typename> struct RGBModel; | ||
| template<typename> struct XYZModel; | ||
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| template<> struct AlphaTraits<float> { | ||
| static constexpr float transparent = 0.0f; | ||
| static constexpr float opaque = 1.0f; | ||
| }; | ||
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| template<> struct AlphaTraits<uint8_t> { | ||
| static constexpr uint8_t transparent = 0; | ||
| static constexpr uint8_t opaque = 255; | ||
| }; | ||
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| template<typename T> struct ColorComponentRange { | ||
| T min; | ||
| T max; | ||
| }; | ||
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| template<> struct ExtendedRGBModel<float> { | ||
| static constexpr std::array<ColorComponentRange<float>, 3> ranges { { | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() }, | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() }, | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() } | ||
| } }; | ||
| static constexpr bool isInvertible = false; | ||
| }; | ||
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| template<> struct HSLModel<float> { | ||
| static constexpr std::array<ColorComponentRange<float>, 3> ranges { { | ||
| { 0, 360 }, | ||
| { 0, 100 }, | ||
| { 0, 100 } | ||
| } }; | ||
| static constexpr bool isInvertible = true; | ||
| }; | ||
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| template<> struct LabModel<float> { | ||
| static constexpr std::array<ColorComponentRange<float>, 3> ranges { { | ||
| { 0, std::numeric_limits<float>::infinity() }, | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() }, | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() } | ||
| } }; | ||
| static constexpr bool isInvertible = false; | ||
| }; | ||
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| template<> struct LCHModel<float> { | ||
| static constexpr std::array<ColorComponentRange<float>, 3> ranges { { | ||
| { 0, std::numeric_limits<float>::infinity() }, | ||
| { 0, std::numeric_limits<float>::infinity() }, | ||
| { 0, 360 } | ||
| } }; | ||
| static constexpr bool isInvertible = false; | ||
| }; | ||
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| template<> struct RGBModel<float> { | ||
| static constexpr std::array<ColorComponentRange<float>, 3> ranges { { | ||
| { 0, 1 }, | ||
| { 0, 1 }, | ||
| { 0, 1 } | ||
| } }; | ||
| static constexpr bool isInvertible = true; | ||
| }; | ||
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| template<> struct RGBModel<uint8_t> { | ||
| static constexpr std::array<ColorComponentRange<uint8_t>, 3> ranges { { | ||
| { 0, 255 }, | ||
| { 0, 255 }, | ||
| { 0, 255 } | ||
| } }; | ||
| static constexpr bool isInvertible = true; | ||
| }; | ||
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| template<> struct XYZModel<float> { | ||
| static constexpr std::array<ColorComponentRange<float>, 3> ranges { { | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() }, | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() }, | ||
| { -std::numeric_limits<float>::infinity(), std::numeric_limits<float>::infinity() } | ||
| } }; | ||
| static constexpr bool isInvertible = false; | ||
| }; | ||
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| } |
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