412 lines
14 KiB
C++
412 lines
14 KiB
C++
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//
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// Copyright 2005-2007 Adobe Systems Incorporated
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/gil/channel.hpp>
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#include <boost/gil/channel_algorithm.hpp>
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#include <boost/gil/typedefs.hpp>
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#include <cstdint>
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#include <exception>
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#include <iostream>
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#include <type_traits>
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#if defined(BOOST_CLANG)
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wfloat-equal"
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#if (__clang_major__ >= 10)
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#pragma clang diagnostic ignored "-Wtautological-overlap-compare"
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#endif
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#elif BOOST_GCC >= 40700
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wfloat-equal"
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#elif BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
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#pragma warning(push)
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#pragma warning(disable:4512) //assignment operator could not be generated
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#endif
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using namespace boost::gil;
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using namespace std;
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void error_if(bool);
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auto c8_min = channel_traits<uint8_t>::min_value();
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auto c8_max = channel_traits<uint8_t>::max_value();
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auto c8s_min = channel_traits<int8_t>::min_value();
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auto c8s_max = channel_traits<int8_t>::max_value();
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auto c16_min = channel_traits<uint16_t>::min_value();
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auto c16_max = channel_traits<uint16_t>::max_value();
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auto c16s_min = channel_traits<int16_t>::min_value();
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auto c16s_max = channel_traits<int16_t>::max_value();
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auto c32_min = channel_traits<uint32_t>::min_value();
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auto c32_max = channel_traits<uint32_t>::max_value();
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auto c32s_min = channel_traits<int32_t>::min_value();
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auto c32s_max = channel_traits<int32_t>::max_value();
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auto c32f_min = channel_traits<float32_t>::min_value();
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auto c32f_max = channel_traits<float32_t>::max_value();
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template <typename ChannelTestCore>
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struct do_test : public ChannelTestCore {
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using channel_t = typename ChannelTestCore::channel_t;
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using channel_value_t = typename channel_traits<channel_t>::value_type;
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do_test() : ChannelTestCore() {
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error_if(this->_min_v != channel_traits<channel_t>::min_value());
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error_if(this->_max_v != channel_traits<channel_t>::max_value());
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}
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void test_all() {
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test_channel_invert();
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test_channel_convert();
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test_channel_multiply();
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test_channel_math();
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}
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void test_mutable(std::false_type) {}
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void test_mutable(std::true_type) {
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channel_value_t mv=this->_min_v;
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++this->_min_v; this->_min_v++;
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--this->_min_v; this->_min_v--;
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error_if(mv!=this->_min_v);
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this->_min_v+=1;
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this->_min_v-=1;
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error_if(mv!=this->_min_v);
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this->_min_v*=1;
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this->_min_v/=1;
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error_if(mv!=this->_min_v);
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this->_min_v = 1; // assignable to scalar
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this->_min_v = mv; // and to value type
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// test swap
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channel_value_t v1=this->_min_v;
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channel_value_t v2=this->_max_v;
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swap(this->_min_v, this->_max_v);
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channel_value_t v3=this->_min_v;
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channel_value_t v4=this->_max_v;
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error_if(v1!=v4 || v2!=v3);
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}
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void test_channel_math() {
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error_if(this->_min_v >= this->_max_v);
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error_if(this->_max_v <= this->_min_v);
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error_if(this->_min_v > this->_max_v);
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error_if(this->_max_v < this->_min_v);
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error_if(this->_max_v == this->_min_v);
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error_if(!(this->_max_v != this->_min_v));
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error_if(this->_min_v * 1 != this->_min_v);
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error_if(this->_min_v / 1 != this->_min_v);
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error_if((this->_min_v + 1) + 1 != (this->_min_v + 2));
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error_if((this->_max_v - 1) - 1 != (this->_max_v - 2));
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error_if(this->_min_v != 1 && this->_min_v==1); // comparable to integral
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test_mutable(std::integral_constant<bool, channel_traits<channel_t>::is_mutable>());
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}
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void test_channel_invert() {
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error_if(channel_invert(this->_min_v) != this->_max_v);
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error_if(channel_invert(this->_max_v) != this->_min_v);
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}
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void test_channel_multiply() {
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error_if(channel_multiply(this->_min_v, this->_min_v) != this->_min_v);
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error_if(channel_multiply(this->_max_v, this->_max_v) != this->_max_v);
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error_if(channel_multiply(this->_max_v, this->_min_v) != this->_min_v);
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}
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void test_channel_convert() {
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channel_value_t v_min, v_max;
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v_min=channel_convert<channel_t>(c8_min);
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v_max=channel_convert<channel_t>(c8_max);
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error_if(v_min!=this->_min_v || v_max!=this->_max_v);
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v_min=channel_convert<channel_t>(c8s_min);
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v_max=channel_convert<channel_t>(c8s_max);
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error_if(v_min!=this->_min_v || v_max!=this->_max_v);
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v_min=channel_convert<channel_t>(c16_min);
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v_max=channel_convert<channel_t>(c16_max);
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error_if(v_min!=this->_min_v || v_max!=this->_max_v);
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v_min=channel_convert<channel_t>(c16s_min);
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v_max=channel_convert<channel_t>(c16s_max);
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error_if(v_min!=this->_min_v || v_max!=this->_max_v);
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v_min=channel_convert<channel_t>(c32_min);
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v_max=channel_convert<channel_t>(c32_max);
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error_if(v_min!=this->_min_v || v_max!=this->_max_v);
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v_min=channel_convert<channel_t>(c32s_min);
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v_max=channel_convert<channel_t>(c32s_max);
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error_if(v_min!=this->_min_v || v_max!=this->_max_v);
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v_min=channel_convert<channel_t>(c32f_min);
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v_max=channel_convert<channel_t>(c32f_max);
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error_if(v_min!=this->_min_v || v_max!=this->_max_v);
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}
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};
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// Different core classes depending on the different types of channels - channel values, references and subbyte references
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// The cores ensure there are two members, _min_v and _max_v initialized with the minimum and maximum channel value.
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// The different channel types have different ways to initialize them, thus require different cores
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// For channel values simply initialize the value directly
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template <typename ChannelValue>
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class value_core {
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protected:
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using channel_t = ChannelValue;
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channel_t _min_v;
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channel_t _max_v;
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value_core()
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: _min_v(channel_traits<ChannelValue>::min_value())
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, _max_v(channel_traits<ChannelValue>::max_value())
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{
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boost::function_requires<ChannelValueConcept<ChannelValue> >();
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}
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};
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// For channel references we need to have separate channel values
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template <typename ChannelRef>
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class reference_core : public value_core<typename channel_traits<ChannelRef>::value_type>
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{
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using parent_t = value_core<typename channel_traits<ChannelRef>::value_type>;
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protected:
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using channel_t = ChannelRef;
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channel_t _min_v;
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channel_t _max_v;
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reference_core()
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: parent_t()
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, _min_v(parent_t::_min_v)
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, _max_v(parent_t::_max_v)
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{
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boost::function_requires<ChannelConcept<ChannelRef> >();
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}
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};
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// For subbyte channel references we need to store the bit buffers somewhere
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template <typename ChannelSubbyteRef, typename ChannelMutableRef = ChannelSubbyteRef>
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class packed_reference_core {
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protected:
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using channel_t = ChannelSubbyteRef;
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using integer_t = typename channel_t::integer_t;
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channel_t _min_v, _max_v;
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integer_t _min_buf, _max_buf;
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packed_reference_core() : _min_v(&_min_buf), _max_v(&_max_buf) {
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ChannelMutableRef b1(&_min_buf), b2(&_max_buf);
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b1 = channel_traits<channel_t>::min_value();
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b2 = channel_traits<channel_t>::max_value();
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boost::function_requires<ChannelConcept<ChannelSubbyteRef> >();
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}
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};
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template <typename ChannelSubbyteRef, typename ChannelMutableRef = ChannelSubbyteRef>
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class packed_dynamic_reference_core {
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protected:
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using channel_t = ChannelSubbyteRef;
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channel_t _min_v, _max_v;
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typename channel_t::integer_t _min_buf, _max_buf;
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packed_dynamic_reference_core(int first_bit1=1, int first_bit2=2) : _min_v(&_min_buf,first_bit1), _max_v(&_max_buf,first_bit2) {
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ChannelMutableRef b1(&_min_buf,1), b2(&_max_buf,2);
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b1 = channel_traits<channel_t>::min_value();
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b2 = channel_traits<channel_t>::max_value();
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boost::function_requires<ChannelConcept<ChannelSubbyteRef> >();
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}
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};
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template <typename ChannelValue>
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void test_channel_value() {
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do_test<value_core<ChannelValue> >().test_all();
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}
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template <typename ChannelRef>
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void test_channel_reference() {
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do_test<reference_core<ChannelRef> >().test_all();
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}
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template <typename ChannelSubbyteRef>
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void test_packed_channel_reference() {
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do_test<packed_reference_core<ChannelSubbyteRef,ChannelSubbyteRef> >().test_all();
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}
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template <typename ChannelSubbyteRef, typename MutableRef>
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void test_const_packed_channel_reference() {
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do_test<packed_reference_core<ChannelSubbyteRef,MutableRef> >().test_all();
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}
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template <typename ChannelSubbyteRef>
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void test_packed_dynamic_channel_reference() {
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do_test<packed_dynamic_reference_core<ChannelSubbyteRef,ChannelSubbyteRef> >().test_all();
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}
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template <typename ChannelSubbyteRef, typename MutableRef>
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void test_const_packed_dynamic_channel_reference() {
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do_test<packed_dynamic_reference_core<ChannelSubbyteRef,MutableRef> >().test_all();
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}
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template <typename ChannelValue>
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void test_channel_value_impl() {
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test_channel_value<ChannelValue>();
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test_channel_reference<ChannelValue&>();
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test_channel_reference<const ChannelValue&>();
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}
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/////////////////////////////////////////////////////////
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///
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/// A channel archetype - to test the minimum requirements of the concept
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///
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/////////////////////////////////////////////////////////
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struct channel_value_archetype;
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struct channel_archetype {
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// equality comparable
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friend bool operator==(const channel_archetype&,const channel_archetype&) { return true; }
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friend bool operator!=(const channel_archetype&,const channel_archetype&) { return false; }
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// less-than comparable
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friend bool operator<(const channel_archetype&,const channel_archetype&) { return false; }
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// convertible to a scalar
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operator std::uint8_t() const { return 0; }
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channel_archetype& operator++() { return *this; }
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channel_archetype& operator--() { return *this; }
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channel_archetype operator++(int) { return *this; }
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channel_archetype operator--(int) { return *this; }
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template <typename Scalar> channel_archetype operator+=(Scalar) { return *this; }
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template <typename Scalar> channel_archetype operator-=(Scalar) { return *this; }
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template <typename Scalar> channel_archetype operator*=(Scalar) { return *this; }
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template <typename Scalar> channel_archetype operator/=(Scalar) { return *this; }
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using value_type = channel_value_archetype;
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using reference = channel_archetype;
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using const_reference = channel_archetype const;
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using pointer = channel_value_archetype *;
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using const_pointer = channel_value_archetype const*;
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static constexpr bool is_mutable=true;
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static value_type min_value();
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static value_type max_value();
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};
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struct channel_value_archetype : public channel_archetype {
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channel_value_archetype() {} // default constructible
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channel_value_archetype(const channel_value_archetype&) {} // copy constructible
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channel_value_archetype& operator=(const channel_value_archetype&){return *this;} // assignable
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channel_value_archetype(std::uint8_t) {}
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};
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channel_value_archetype channel_archetype::min_value() { return channel_value_archetype(); }
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channel_value_archetype channel_archetype::max_value() { return channel_value_archetype(); }
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void test_packed_channel_reference()
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{
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using channel16_0_5_reference_t = packed_channel_reference<std::uint16_t, 0, 5, true>;
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using channel16_5_6_reference_t = packed_channel_reference<std::uint16_t, 5, 6, true>;
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using channel16_11_5_reference_t = packed_channel_reference<std::uint16_t, 11, 5, true>;
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std::uint16_t data=0;
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channel16_0_5_reference_t channel1(&data);
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channel16_5_6_reference_t channel2(&data);
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channel16_11_5_reference_t channel3(&data);
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channel1=channel_traits<channel16_0_5_reference_t>::max_value();
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channel2=channel_traits<channel16_5_6_reference_t>::max_value();
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channel3=channel_traits<channel16_11_5_reference_t>::max_value();
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error_if(data!=65535);
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test_packed_channel_reference<channel16_0_5_reference_t>();
|
||
|
|
test_packed_channel_reference<channel16_5_6_reference_t>();
|
||
|
|
test_packed_channel_reference<channel16_11_5_reference_t>();
|
||
|
|
}
|
||
|
|
|
||
|
|
void test_packed_dynamic_channel_reference()
|
||
|
|
{
|
||
|
|
using channel16_5_reference_t = packed_dynamic_channel_reference<std::uint16_t, 5, true>;
|
||
|
|
using channel16_6_reference_t = packed_dynamic_channel_reference<std::uint16_t, 6, true>;
|
||
|
|
|
||
|
|
std::uint16_t data=0;
|
||
|
|
channel16_5_reference_t channel1(&data,0);
|
||
|
|
channel16_6_reference_t channel2(&data,5);
|
||
|
|
channel16_5_reference_t channel3(&data,11);
|
||
|
|
|
||
|
|
channel1=channel_traits<channel16_5_reference_t>::max_value();
|
||
|
|
channel2=channel_traits<channel16_6_reference_t>::max_value();
|
||
|
|
channel3=channel_traits<channel16_5_reference_t>::max_value();
|
||
|
|
error_if(data!=65535);
|
||
|
|
|
||
|
|
test_packed_dynamic_channel_reference<channel16_5_reference_t>();
|
||
|
|
}
|
||
|
|
|
||
|
|
void test_channel() {
|
||
|
|
test_channel_value_impl<uint8_t>();
|
||
|
|
test_channel_value_impl<int8_t>();
|
||
|
|
test_channel_value_impl<uint16_t>();
|
||
|
|
test_channel_value_impl<int16_t>();
|
||
|
|
test_channel_value_impl<uint32_t>();
|
||
|
|
test_channel_value_impl<int16_t>();
|
||
|
|
|
||
|
|
test_channel_value_impl<float32_t>();
|
||
|
|
|
||
|
|
test_packed_channel_reference();
|
||
|
|
test_packed_dynamic_channel_reference();
|
||
|
|
|
||
|
|
// Do only compile-time tests for the archetype (because asserts like val1<val2 fail)
|
||
|
|
boost::function_requires<MutableChannelConcept<channel_archetype> >();
|
||
|
|
|
||
|
|
do_test<value_core<channel_value_archetype> >();
|
||
|
|
do_test<reference_core<channel_archetype> >();
|
||
|
|
do_test<reference_core<const channel_archetype&> >();
|
||
|
|
}
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
test_channel();
|
||
|
|
|
||
|
|
return EXIT_SUCCESS;
|
||
|
|
}
|
||
|
|
catch (std::exception const& e)
|
||
|
|
{
|
||
|
|
std::cerr << e.what() << std::endl;
|
||
|
|
return EXIT_FAILURE;
|
||
|
|
}
|
||
|
|
catch (...)
|
||
|
|
{
|
||
|
|
return EXIT_FAILURE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// TODO:
|
||
|
|
// - provide algorithm performance overloads for scoped channel and packed channels
|
||
|
|
// - Update concepts and documentation
|
||
|
|
// - What to do about pointer types?!
|
||
|
|
// - Performance!!
|
||
|
|
// - is channel_convert the same as native?
|
||
|
|
// - is operator++ on float32_t the same as native? How about if operator++ is defined in scoped_channel to do _value++?
|