83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2011-2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_IMAGE_HPP
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#define __UTIL_IMAGE_HPP
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#include "extent.hpp"
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#include "point.hpp"
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#include <cstdint>
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#include <cstdlib>
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#include <memory>
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namespace util { namespace image {
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template <typename T>
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struct buffer {
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typedef T value_type;
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//---------------------------------------------------------------------
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buffer (util::extent2u);
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buffer (size_t w, size_t h);
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buffer (size_t w, size_t h, size_t s);
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buffer (size_t w, size_t h, size_t s, std::unique_ptr<T[]> &&data);
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buffer (const buffer<T>&) = delete;
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buffer (buffer<T> &&) = default;
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//---------------------------------------------------------------------
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/// allocate and return a buffer of the same dimensions. contents are undefined.
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template <typename U = T> buffer<U> alloc (void) const;
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/// allocate and return a buffer with the same contents
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template <typename U = T> buffer<U> clone (void) const;
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buffer<T> downsample (float factor) const;
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//---------------------------------------------------------------------
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constexpr size_t area (void) const;
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constexpr bool is_packed (void) const;
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size_t w;
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size_t h;
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size_t s;
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//---------------------------------------------------------------------
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T operator[] (point<2,size_t>) const;
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T& operator[] (point<2,size_t>);
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T operator[] (size_t) const;
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T& operator[] (size_t);
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//---------------------------------------------------------------------
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T* begin (void);
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T* end (void);
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T* data (void);
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const T* begin (void) const;
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const T* end (void) const;
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const T* data (void) const;
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private:
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std::unique_ptr<T[]> m_data;
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};
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} }
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#include "image.ipp"
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#endif
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