/* * Copyright (C) 2012 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" #if ENABLE(CSS_SHADERS) #include "CustomFilterProgram.h" #include "CustomFilterCompiledProgram.h" #include "CustomFilterProgramClient.h" #include "CustomFilterProgramInfo.h" #include "CustomFilterValidatedProgram.h" namespace WebCore { CustomFilterProgram::CustomFilterProgram(CustomFilterProgramType programType, const CustomFilterProgramMixSettings& mixSettings, CustomFilterMeshType meshType) : m_programType(programType) , m_mixSettings(mixSettings) , m_meshType(meshType) { // Keep the constructor protected to prevent creating this object directly. } CustomFilterProgram::~CustomFilterProgram() { // All the clients should keep a reference to this object. ASSERT(m_clients.isEmpty()); } void CustomFilterProgram::addClient(CustomFilterProgramClient* client) { if (m_clients.isEmpty()) { // Notify the StyleCustomFilterProgram that we now have at least a client // and the loading can begin. // Note: If the shader is already cached the first client will be notified, // even if the filter was already built. Add the client only after notifying // the cache about them, so that we avoid a useless recreation of the filters chain. willHaveClients(); } m_clients.add(client); } void CustomFilterProgram::removeClient(CustomFilterProgramClient* client) { m_clients.remove(client); if (m_clients.isEmpty()) { // We have no clients anymore, the cached resources can be purged from memory. didRemoveLastClient(); } } void CustomFilterProgram::notifyClients() { for (CustomFilterProgramClientList::iterator iter = m_clients.begin(), end = m_clients.end(); iter != end; ++iter) iter->key->notifyCustomFilterProgramLoaded(this); } CustomFilterProgramInfo CustomFilterProgram::programInfo() const { ASSERT(isLoaded()); return CustomFilterProgramInfo(vertexShaderString(), fragmentShaderString(), m_programType, m_mixSettings, m_meshType); } PassRefPtr<CustomFilterValidatedProgram> CustomFilterProgram::validatedProgram() { return m_validatedProgram; } void CustomFilterProgram::setValidatedProgram(PassRefPtr<CustomFilterValidatedProgram> validatedProgram) { m_validatedProgram = validatedProgram; } } // namespace WebCore #endif // ENABLE(CSS_SHADERS)