| /* |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "DestinationColorSpace.h" |
| |
| #include <wtf/NeverDestroyed.h> |
| #include <wtf/text/TextStream.h> |
| |
| #if USE(CG) |
| #include "ColorSpaceCG.h" |
| #include <pal/spi/cg/CoreGraphicsSPI.h> |
| #endif |
| |
| namespace WebCore { |
| |
| #if USE(CG) |
| using KnownColorSpaceAccessor = CGColorSpaceRef(); |
| template<KnownColorSpaceAccessor accessor> static const DestinationColorSpace& knownColorSpace() |
| { |
| static LazyNeverDestroyed<DestinationColorSpace> colorSpace; |
| static std::once_flag onceFlag; |
| std::call_once(onceFlag, [] { |
| colorSpace.construct(accessor()); |
| }); |
| return colorSpace.get(); |
| } |
| #else |
| template<PlatformColorSpace::Name name> static const DestinationColorSpace& knownColorSpace() |
| { |
| static NeverDestroyed<DestinationColorSpace> colorSpace { name }; |
| return colorSpace.get(); |
| } |
| #endif |
| |
| const DestinationColorSpace& DestinationColorSpace::SRGB() |
| { |
| #if USE(CG) |
| return knownColorSpace<sRGBColorSpaceRef>(); |
| #else |
| return knownColorSpace<PlatformColorSpace::Name::SRGB>(); |
| #endif |
| } |
| |
| #if ENABLE(DESTINATION_COLOR_SPACE_LINEAR_SRGB) |
| const DestinationColorSpace& DestinationColorSpace::LinearSRGB() |
| { |
| #if USE(CG) |
| return knownColorSpace<linearSRGBColorSpaceRef>(); |
| #else |
| return knownColorSpace<PlatformColorSpace::Name::LinearSRGB>(); |
| #endif |
| } |
| #endif |
| |
| #if ENABLE(DESTINATION_COLOR_SPACE_DISPLAY_P3) |
| const DestinationColorSpace& DestinationColorSpace::DisplayP3() |
| { |
| #if USE(CG) |
| return knownColorSpace<displayP3ColorSpaceRef>(); |
| #else |
| return knownColorSpace<PlatformColorSpace::Name::DisplayP3>(); |
| #endif |
| } |
| #endif |
| |
| DestinationColorSpace::DestinationColorSpace(PlatformColorSpace platformColorSpace) |
| : m_platformColorSpace { WTFMove(platformColorSpace) } |
| { |
| #if USE(CG) |
| ASSERT(m_platformColorSpace); |
| #endif |
| } |
| |
| bool operator==(const DestinationColorSpace& a, const DestinationColorSpace& b) |
| { |
| #if USE(CG) |
| return CGColorSpaceEqualToColorSpace(a.platformColorSpace(), b.platformColorSpace()); |
| #else |
| return a.platformColorSpace() == b.platformColorSpace(); |
| #endif |
| } |
| |
| bool operator!=(const DestinationColorSpace& a, const DestinationColorSpace& b) |
| { |
| return !(a == b); |
| } |
| |
| std::optional<DestinationColorSpace> DestinationColorSpace::asRGB() const |
| { |
| #if USE(CG) |
| CGColorSpaceRef colorSpace = platformColorSpace(); |
| if (CGColorSpaceGetModel(colorSpace) == kCGColorSpaceModelIndexed) |
| colorSpace = CGColorSpaceGetBaseColorSpace(colorSpace); |
| |
| if (CGColorSpaceGetModel(colorSpace) != kCGColorSpaceModelRGB) |
| return std::nullopt; |
| |
| #if HAVE(CG_COLOR_SPACE_USES_EXTENDED_RANGE) |
| if (CGColorSpaceUsesExtendedRange(colorSpace)) |
| return std::nullopt; |
| #endif |
| |
| return DestinationColorSpace(colorSpace); |
| #else |
| return *this; |
| #endif |
| } |
| |
| TextStream& operator<<(TextStream& ts, const DestinationColorSpace& colorSpace) |
| { |
| if (colorSpace == DestinationColorSpace::SRGB()) |
| ts << "sRGB"; |
| #if ENABLE(DESTINATION_COLOR_SPACE_LINEAR_SRGB) |
| else if (colorSpace == DestinationColorSpace::LinearSRGB()) |
| ts << "LinearSRGB"; |
| #endif |
| #if ENABLE(DESTINATION_COLOR_SPACE_DISPLAY_P3) |
| else if (colorSpace == DestinationColorSpace::DisplayP3()) |
| ts << "DisplayP3"; |
| #endif |
| #if USE(CG) |
| else if (auto description = adoptCF(CGColorSpaceCopyICCProfileDescription(colorSpace.platformColorSpace()))) |
| ts << String(description.get()); |
| #endif |
| |
| return ts; |
| } |
| |
| } |