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-rw-r--r--src/boost/libs/gil/test/legacy/channel.cpp408
1 files changed, 408 insertions, 0 deletions
diff --git a/src/boost/libs/gil/test/legacy/channel.cpp b/src/boost/libs/gil/test/legacy/channel.cpp
new file mode 100644
index 000000000..b4225d20e
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+++ b/src/boost/libs/gil/test/legacy/channel.cpp
@@ -0,0 +1,408 @@
+//
+// Copyright 2005-2007 Adobe Systems Incorporated
+//
+// Distributed under the Boost Software License, Version 1.0
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+#include <boost/gil/channel.hpp>
+#include <boost/gil/channel_algorithm.hpp>
+#include <boost/gil/typedefs.hpp>
+
+#include <cstdint>
+#include <exception>
+#include <iostream>
+#include <type_traits>
+
+#if defined(BOOST_CLANG)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wfloat-equal"
+#elif BOOST_GCC >= 40700
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wfloat-equal"
+#elif BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(push)
+#pragma warning(disable:4512) //assignment operator could not be generated
+#endif
+
+using namespace boost::gil;
+using namespace std;
+
+void error_if(bool);
+
+auto c8_min = channel_traits<uint8_t>::min_value();
+auto c8_max = channel_traits<uint8_t>::max_value();
+auto c8s_min = channel_traits<int8_t>::min_value();
+auto c8s_max = channel_traits<int8_t>::max_value();
+auto c16_min = channel_traits<uint16_t>::min_value();
+auto c16_max = channel_traits<uint16_t>::max_value();
+auto c16s_min = channel_traits<int16_t>::min_value();
+auto c16s_max = channel_traits<int16_t>::max_value();
+auto c32_min = channel_traits<uint32_t>::min_value();
+auto c32_max = channel_traits<uint32_t>::max_value();
+auto c32s_min = channel_traits<int32_t>::min_value();
+auto c32s_max = channel_traits<int32_t>::max_value();
+auto c32f_min = channel_traits<float32_t>::min_value();
+auto c32f_max = channel_traits<float32_t>::max_value();
+
+
+template <typename ChannelTestCore>
+struct do_test : public ChannelTestCore {
+ using channel_t = typename ChannelTestCore::channel_t;
+ using channel_value_t = typename channel_traits<channel_t>::value_type;
+
+ do_test() : ChannelTestCore() {
+ error_if(this->_min_v != channel_traits<channel_t>::min_value());
+ error_if(this->_max_v != channel_traits<channel_t>::max_value());
+ }
+
+ void test_all() {
+ test_channel_invert();
+ test_channel_convert();
+ test_channel_multiply();
+ test_channel_math();
+ }
+
+ void test_mutable(std::false_type) {}
+ void test_mutable(std::true_type) {
+ channel_value_t mv=this->_min_v;
+ ++this->_min_v; this->_min_v++;
+ --this->_min_v; this->_min_v--;
+ error_if(mv!=this->_min_v);
+
+ this->_min_v+=1;
+ this->_min_v-=1;
+ error_if(mv!=this->_min_v);
+
+ this->_min_v*=1;
+ this->_min_v/=1;
+ error_if(mv!=this->_min_v);
+
+ this->_min_v = 1; // assignable to scalar
+ this->_min_v = mv; // and to value type
+
+ // test swap
+ channel_value_t v1=this->_min_v;
+ channel_value_t v2=this->_max_v;
+ swap(this->_min_v, this->_max_v);
+
+ channel_value_t v3=this->_min_v;
+ channel_value_t v4=this->_max_v;
+ error_if(v1!=v4 || v2!=v3);
+ }
+
+ void test_channel_math() {
+ error_if(this->_min_v >= this->_max_v);
+ error_if(this->_max_v <= this->_min_v);
+ error_if(this->_min_v > this->_max_v);
+ error_if(this->_max_v < this->_min_v);
+ error_if(this->_max_v == this->_min_v);
+ error_if(!(this->_max_v != this->_min_v));
+
+ error_if(this->_min_v * 1 != this->_min_v);
+ error_if(this->_min_v / 1 != this->_min_v);
+
+ error_if((this->_min_v + 1) + 1 != (this->_min_v + 2));
+ error_if((this->_max_v - 1) - 1 != (this->_max_v - 2));
+
+ error_if(this->_min_v != 1 && this->_min_v==1); // comparable to integral
+
+
+ test_mutable(std::integral_constant<bool, channel_traits<channel_t>::is_mutable>());
+ }
+
+
+ void test_channel_invert() {
+ error_if(channel_invert(this->_min_v) != this->_max_v);
+ error_if(channel_invert(this->_max_v) != this->_min_v);
+ }
+
+ void test_channel_multiply() {
+ error_if(channel_multiply(this->_min_v, this->_min_v) != this->_min_v);
+ error_if(channel_multiply(this->_max_v, this->_max_v) != this->_max_v);
+ error_if(channel_multiply(this->_max_v, this->_min_v) != this->_min_v);
+ }
+
+ void test_channel_convert() {
+ channel_value_t v_min, v_max;
+
+ v_min=channel_convert<channel_t>(c8_min);
+ v_max=channel_convert<channel_t>(c8_max);
+ error_if(v_min!=this->_min_v || v_max!=this->_max_v);
+
+ v_min=channel_convert<channel_t>(c8s_min);
+ v_max=channel_convert<channel_t>(c8s_max);
+ error_if(v_min!=this->_min_v || v_max!=this->_max_v);
+
+ v_min=channel_convert<channel_t>(c16_min);
+ v_max=channel_convert<channel_t>(c16_max);
+ error_if(v_min!=this->_min_v || v_max!=this->_max_v);
+
+ v_min=channel_convert<channel_t>(c16s_min);
+ v_max=channel_convert<channel_t>(c16s_max);
+ error_if(v_min!=this->_min_v || v_max!=this->_max_v);
+
+ v_min=channel_convert<channel_t>(c32_min);
+ v_max=channel_convert<channel_t>(c32_max);
+ error_if(v_min!=this->_min_v || v_max!=this->_max_v);
+
+ v_min=channel_convert<channel_t>(c32s_min);
+ v_max=channel_convert<channel_t>(c32s_max);
+ error_if(v_min!=this->_min_v || v_max!=this->_max_v);
+
+ v_min=channel_convert<channel_t>(c32f_min);
+ v_max=channel_convert<channel_t>(c32f_max);
+ error_if(v_min!=this->_min_v || v_max!=this->_max_v);
+ }
+};
+
+// Different core classes depending on the different types of channels - channel values, references and subbyte references
+// The cores ensure there are two members, _min_v and _max_v initialized with the minimum and maximum channel value.
+// The different channel types have different ways to initialize them, thus require different cores
+
+// For channel values simply initialize the value directly
+template <typename ChannelValue>
+class value_core {
+protected:
+ using channel_t = ChannelValue;
+ channel_t _min_v;
+ channel_t _max_v;
+
+ value_core()
+ : _min_v(channel_traits<ChannelValue>::min_value())
+ , _max_v(channel_traits<ChannelValue>::max_value())
+ {
+ boost::function_requires<ChannelValueConcept<ChannelValue> >();
+ }
+};
+
+// For channel references we need to have separate channel values
+template <typename ChannelRef>
+class reference_core : public value_core<typename channel_traits<ChannelRef>::value_type>
+{
+ using parent_t = value_core<typename channel_traits<ChannelRef>::value_type>;
+
+protected:
+ using channel_t = ChannelRef;
+ channel_t _min_v;
+ channel_t _max_v;
+
+ reference_core()
+ : parent_t()
+ , _min_v(parent_t::_min_v)
+ , _max_v(parent_t::_max_v)
+ {
+ boost::function_requires<ChannelConcept<ChannelRef> >();
+ }
+};
+
+// For subbyte channel references we need to store the bit buffers somewhere
+template <typename ChannelSubbyteRef, typename ChannelMutableRef = ChannelSubbyteRef>
+class packed_reference_core {
+protected:
+ using channel_t = ChannelSubbyteRef;
+ using integer_t = typename channel_t::integer_t;
+ channel_t _min_v, _max_v;
+
+ integer_t _min_buf, _max_buf;
+
+ packed_reference_core() : _min_v(&_min_buf), _max_v(&_max_buf) {
+ ChannelMutableRef b1(&_min_buf), b2(&_max_buf);
+ b1 = channel_traits<channel_t>::min_value();
+ b2 = channel_traits<channel_t>::max_value();
+
+ boost::function_requires<ChannelConcept<ChannelSubbyteRef> >();
+ }
+};
+
+template <typename ChannelSubbyteRef, typename ChannelMutableRef = ChannelSubbyteRef>
+class packed_dynamic_reference_core {
+protected:
+ using channel_t = ChannelSubbyteRef;
+ channel_t _min_v, _max_v;
+
+ typename channel_t::integer_t _min_buf, _max_buf;
+
+ packed_dynamic_reference_core(int first_bit1=1, int first_bit2=2) : _min_v(&_min_buf,first_bit1), _max_v(&_max_buf,first_bit2) {
+ ChannelMutableRef b1(&_min_buf,1), b2(&_max_buf,2);
+ b1 = channel_traits<channel_t>::min_value();
+ b2 = channel_traits<channel_t>::max_value();
+
+ boost::function_requires<ChannelConcept<ChannelSubbyteRef> >();
+ }
+};
+
+
+template <typename ChannelValue>
+void test_channel_value() {
+ do_test<value_core<ChannelValue> >().test_all();
+}
+
+template <typename ChannelRef>
+void test_channel_reference() {
+ do_test<reference_core<ChannelRef> >().test_all();
+}
+
+template <typename ChannelSubbyteRef>
+void test_packed_channel_reference() {
+ do_test<packed_reference_core<ChannelSubbyteRef,ChannelSubbyteRef> >().test_all();
+}
+
+template <typename ChannelSubbyteRef, typename MutableRef>
+void test_const_packed_channel_reference() {
+ do_test<packed_reference_core<ChannelSubbyteRef,MutableRef> >().test_all();
+}
+
+template <typename ChannelSubbyteRef>
+void test_packed_dynamic_channel_reference() {
+ do_test<packed_dynamic_reference_core<ChannelSubbyteRef,ChannelSubbyteRef> >().test_all();
+}
+
+template <typename ChannelSubbyteRef, typename MutableRef>
+void test_const_packed_dynamic_channel_reference() {
+ do_test<packed_dynamic_reference_core<ChannelSubbyteRef,MutableRef> >().test_all();
+}
+
+template <typename ChannelValue>
+void test_channel_value_impl() {
+ test_channel_value<ChannelValue>();
+ test_channel_reference<ChannelValue&>();
+ test_channel_reference<const ChannelValue&>();
+}
+
+/////////////////////////////////////////////////////////
+///
+/// A channel archetype - to test the minimum requirements of the concept
+///
+/////////////////////////////////////////////////////////
+
+struct channel_value_archetype;
+struct channel_archetype {
+ // equality comparable
+ friend bool operator==(const channel_archetype&,const channel_archetype&) { return true; }
+ friend bool operator!=(const channel_archetype&,const channel_archetype&) { return false; }
+ // less-than comparable
+ friend bool operator<(const channel_archetype&,const channel_archetype&) { return false; }
+ // convertible to a scalar
+ operator std::uint8_t() const { return 0; }
+
+
+ channel_archetype& operator++() { return *this; }
+ channel_archetype& operator--() { return *this; }
+ channel_archetype operator++(int) { return *this; }
+ channel_archetype operator--(int) { return *this; }
+
+ template <typename Scalar> channel_archetype operator+=(Scalar) { return *this; }
+ template <typename Scalar> channel_archetype operator-=(Scalar) { return *this; }
+ template <typename Scalar> channel_archetype operator*=(Scalar) { return *this; }
+ template <typename Scalar> channel_archetype operator/=(Scalar) { return *this; }
+
+ using value_type = channel_value_archetype;
+ using reference = channel_archetype;
+ using const_reference = channel_archetype const;
+ using pointer = channel_value_archetype *;
+ using const_pointer = channel_value_archetype const*;
+ static constexpr bool is_mutable=true;
+
+ static value_type min_value();
+ static value_type max_value();
+};
+
+
+struct channel_value_archetype : public channel_archetype {
+ channel_value_archetype() {} // default constructible
+ channel_value_archetype(const channel_value_archetype&) {} // copy constructible
+ channel_value_archetype& operator=(const channel_value_archetype&){return *this;} // assignable
+ channel_value_archetype(std::uint8_t) {}
+};
+
+channel_value_archetype channel_archetype::min_value() { return channel_value_archetype(); }
+channel_value_archetype channel_archetype::max_value() { return channel_value_archetype(); }
+
+
+void test_packed_channel_reference()
+{
+ using channel16_0_5_reference_t = packed_channel_reference<std::uint16_t, 0, 5, true>;
+ using channel16_5_6_reference_t = packed_channel_reference<std::uint16_t, 5, 6, true>;
+ using channel16_11_5_reference_t = packed_channel_reference<std::uint16_t, 11, 5, true>;
+
+ std::uint16_t data=0;
+ channel16_0_5_reference_t channel1(&data);
+ channel16_5_6_reference_t channel2(&data);
+ channel16_11_5_reference_t channel3(&data);
+
+ channel1=channel_traits<channel16_0_5_reference_t>::max_value();
+ channel2=channel_traits<channel16_5_6_reference_t>::max_value();
+ channel3=channel_traits<channel16_11_5_reference_t>::max_value();
+ error_if(data!=65535);
+
+ 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++?
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