shaderprogramloader.cpp

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/*
 * The ManaPlus Client
 * Copyright (C) 2004-2009 The Mana World Development Team
 * Copyright (C) 2009-2010 The Mana Developers
 * Copyright (C) 2011-2019 The ManaPlus Developers
 * Copyright (C) 2019-2021 Andrei Karas
 *
 * This file is part of The ManaPlus Client.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifdef USE_OPENGL
 
#include "utils/checkutils.h"
 
#include "render/shaders/shaderprogram.h"
#include "render/shaders/shadersmanager.h"
 
#include "resources/loaders/shaderprogramloader.h"
 
#include "resources/resourcemanager/resourcemanager.h"
 
#include "debug.h"
 
namespace
{
 struct ShaderProgramLoader final
 {
 A_DEFAULT_COPY(ShaderProgramLoader)
 
 const std::string vertex;
 const std::string fragment;
 const bool isNewShader;
 
 static Resource *load(const void *const v)
 {
 if (v == nullptr)
 return nullptr;
 
 const ShaderProgramLoader *const rl
 = static_cast<const ShaderProgramLoader *>(v);
 ShaderProgram *const resource = shaders.createProgram(
 rl->vertex,
 rl->fragment,
 rl->isNewShader);
 if (resource == nullptr)
 reportAlways("Shader program creation error")
 return resource;
 }
 };
} // namespace
 
Resource *Loader::getShaderProgram(const std::string &vertex,
 const std::string &fragment,
 const bool isNewShader)
{
 ShaderProgramLoader rl = { vertex, fragment, isNewShader };
 return ResourceManager::get("program_" + vertex + " + " + fragment,
 ShaderProgramLoader::load, &rl);
}
 
#endif // USE_OPENGL