/*-------------------------------------------------------------------------
 * drawElements Quality Program Tester Core
 * ----------------------------------------
 *
 * Copyright 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *//*!
 * \file
 * \brief EGL Config selection helper.
 *//*--------------------------------------------------------------------*/

#include "egluConfigFilter.hpp"
#include "egluUtil.hpp"
#include "egluConfigInfo.hpp"
#include "eglwEnums.hpp"

#include <algorithm>

using std::vector;

namespace eglu
{

using namespace eglw;


CandidateConfig::CandidateConfig (const eglw::Library& egl, eglw::EGLDisplay display, eglw::EGLConfig config)
	: m_type(TYPE_EGL_OBJECT)
{
	m_cfg.object.egl		= &egl;
	m_cfg.object.display	= display;
	m_cfg.object.config		= config;
}

CandidateConfig::CandidateConfig (const ConfigInfo& configInfo)
	: m_type(TYPE_CONFIG_INFO)
{
	m_cfg.configInfo = &configInfo;
}

int CandidateConfig::get (deUint32 attrib) const
{
	if (m_type == TYPE_CONFIG_INFO)
		return m_cfg.configInfo->getAttribute(attrib);
	else
		return getConfigAttribInt(*m_cfg.object.egl, m_cfg.object.display, m_cfg.object.config, attrib);
}

int			CandidateConfig::id				(void) const { return get(EGL_CONFIG_ID);					}
int			CandidateConfig::redSize		(void) const { return get(EGL_RED_SIZE);					}
int			CandidateConfig::greenSize		(void) const { return get(EGL_GREEN_SIZE);					}
int			CandidateConfig::blueSize		(void) const { return get(EGL_BLUE_SIZE);					}
int			CandidateConfig::alphaSize		(void) const { return get(EGL_ALPHA_SIZE);					}
int			CandidateConfig::depthSize		(void) const { return get(EGL_DEPTH_SIZE);					}
int			CandidateConfig::stencilSize	(void) const { return get(EGL_STENCIL_SIZE);				}
int			CandidateConfig::samples		(void) const { return get(EGL_SAMPLES);						}
deUint32	CandidateConfig::renderableType	(void) const { return (deUint32)get(EGL_RENDERABLE_TYPE);	}
deUint32	CandidateConfig::surfaceType	(void) const { return (deUint32)get(EGL_SURFACE_TYPE);		}

FilterList& FilterList::operator<< (ConfigFilter filter)
{
	m_rules.push_back(filter);
	return *this;
}

FilterList& FilterList::operator<< (const FilterList& other)
{
	size_t oldEnd = m_rules.size();
	m_rules.resize(m_rules.size()+other.m_rules.size());
	std::copy(other.m_rules.begin(), other.m_rules.end(), m_rules.begin()+oldEnd);
	return *this;
}

bool FilterList::match (const Library& egl, EGLDisplay display, EGLConfig config) const
{
	return match(CandidateConfig(egl, display, config));
}

bool FilterList::match (const ConfigInfo& configInfo) const
{
	return match(CandidateConfig(configInfo));
}

bool FilterList::match (const CandidateConfig& candidate) const
{
	for (vector<ConfigFilter>::const_iterator filterIter = m_rules.begin(); filterIter != m_rules.end(); filterIter++)
	{
		ConfigFilter filter = *filterIter;

		if (!filter(candidate))
			return false;
	}

	return true;
}


} // eglu