/*
 * 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.
 *
 * Copyright:
 *      2016-2017, Danny Robson <danny@nerdcruft.net>
 */

#include "./shader_module.hpp"

#include "./device.hpp"

#include <cruft/util/io.hpp>

using cruft::vk::shader_module;


///////////////////////////////////////////////////////////////////////////////
struct cruft::vk::shader_module::cookie : public create_t {
public:
    cookie (const std::experimental::filesystem::path &src):
        create_t {},
        m_bytes (util::slurp (src))
    {
        CHECK_MOD (m_bytes.size (), 4);

        sType = cruft::vk::structure_type_v<VkShaderModuleCreateInfo>;
        codeSize = m_bytes.size ();
        pCode = reinterpret_cast<const uint32_t*> (m_bytes.data ());
    }

private:
    std::vector<std::byte> m_bytes;
};


///////////////////////////////////////////////////////////////////////////////
shader_module::shader_module (device &owner,
                              const std::experimental::filesystem::path &src):
    shader_module (owner, cookie (src))
{ ; }


//-----------------------------------------------------------------------------
shader_module::shader_module (device &owner, const cookie &info):
    owned (owner, &info, nullptr)
{ ; }