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/*
* Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "config.h"
#include "core/rendering/style/StyleCustomFilterProgramCache.h"
#include "core/rendering/style/StyleCustomFilterProgram.h"
namespace WebCore {
static CustomFilterProgramInfo programCacheKey(StyleCustomFilterProgram* program)
{
ASSERT(program->vertexShaderURL().isValid() || program->fragmentShaderURL().isValid());
return CustomFilterProgramInfo(program->vertexShaderURL().string(), program->fragmentShaderURL().string(),
program->programType(), program->mixSettings(), program->meshType());
}
PassOwnPtr<StyleCustomFilterProgramCache> StyleCustomFilterProgramCache::create()
{
return adoptPtr(new StyleCustomFilterProgramCache());
}
StyleCustomFilterProgramCache::~StyleCustomFilterProgramCache()
{
// Make sure the programs are not calling back into this object.
for (CacheMap::iterator iter = m_cache.begin(), end = m_cache.end(); iter != end; ++iter)
iter->value->setCache(0);
}
StyleCustomFilterProgram* StyleCustomFilterProgramCache::lookup(const CustomFilterProgramInfo& programInfo) const
{
CacheMap::const_iterator iter = m_cache.find(programInfo);
return iter != m_cache.end() ? iter->value : 0;
}
StyleCustomFilterProgram* StyleCustomFilterProgramCache::lookup(StyleCustomFilterProgram* program) const
{
return lookup(programCacheKey(program));
}
void StyleCustomFilterProgramCache::add(StyleCustomFilterProgram* program)
{
CustomFilterProgramInfo key = programCacheKey(program);
ASSERT(m_cache.find(key) == m_cache.end());
m_cache.set(key, program);
program->setCache(this);
}
void StyleCustomFilterProgramCache::remove(StyleCustomFilterProgram* program)
{
CacheMap::iterator iter = m_cache.find(programCacheKey(program));
ASSERT_WITH_SECURITY_IMPLICATION(iter != m_cache.end());
m_cache.remove(iter);
}
} // namespace WebCore
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