// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
//
// 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.

#include "VkBufferView.hpp"
#include "VkBuffer.hpp"
#include "VkFormat.h"

namespace vk
{

BufferView::BufferView(const VkBufferViewCreateInfo* pCreateInfo, void* mem) :
    buffer(Cast(pCreateInfo->buffer)), format(pCreateInfo->format), offset(pCreateInfo->offset)
{
    if (pCreateInfo->range == VK_WHOLE_SIZE)
    {
        range = buffer->getSize() - offset;
    }
    else
    {
        range = pCreateInfo->range;
    }
}

void * BufferView::getPointer() const
{
    return buffer->getOffsetPointer(offset);
}

}