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https://github.com/juce-framework/JUCE.git
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101 lines
3.6 KiB
C++
101 lines
3.6 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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/* Allows access to ImagePixelData implementation details by LowLevelGraphicsContext instances.
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The internal templating is mainly to facilitate returning a type with dynamic implementation by value.
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*/
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class ImagePixelDataNativeExtensions
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{
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public:
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template <typename Impl>
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explicit ImagePixelDataNativeExtensions (Impl x)
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: impl (std::make_unique<Concrete<Impl>> (std::move (x))) {}
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/* For subsection images, this returns the top-left pixel inside the root image */
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Point<int> getTopLeft() const { return impl->getTopLeft(); }
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#if JUCE_WINDOWS
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Span<const Direct2DPixelDataPage> getPages (ComSmartPtr<ID2D1Device1> x) const { return impl->getPages (x); }
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#endif
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#if JUCE_MAC || JUCE_IOS
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CGContextRef getCGContext() const { return impl->getCGContext(); }
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CFUniquePtr<CGImageRef> getCGImage (CGColorSpaceRef x) const { return impl->getCGImage (x); }
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#endif
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private:
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struct Base
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{
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virtual ~Base() = default;
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virtual Point<int> getTopLeft() const = 0;
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#if JUCE_WINDOWS
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virtual Span<const Direct2DPixelDataPage> getPages (ComSmartPtr<ID2D1Device1>) const = 0;
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#endif
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#if JUCE_MAC || JUCE_IOS
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virtual CGContextRef getCGContext() const = 0;
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virtual CFUniquePtr<CGImageRef> getCGImage (CGColorSpaceRef x) const = 0;
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#endif
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};
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template <typename Impl>
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class Concrete : public Base
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{
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public:
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explicit Concrete (Impl x)
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: impl (std::move (x)) {}
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Point<int> getTopLeft() const override { return impl.getTopLeft(); }
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#if JUCE_WINDOWS
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Span<const Direct2DPixelDataPage> getPages (ComSmartPtr<ID2D1Device1> x) const override { return impl.getPages (x); }
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#endif
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#if JUCE_MAC || JUCE_IOS
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CGContextRef getCGContext() const override { return impl.getCGContext(); }
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CFUniquePtr<CGImageRef> getCGImage (CGColorSpaceRef x) const override { return impl.getCGImage (x); }
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#endif
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private:
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Impl impl;
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};
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std::unique_ptr<Base> impl;
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};
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} // namespace juce
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