1// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#ifndef VK_BUFFER_VIEW_HPP_
16#define VK_BUFFER_VIEW_HPP_
17
18#include "VkObject.hpp"
19#include "VkFormat.h"
20#include "VkImageView.hpp"
21
22namespace vk
23{
24
25class Buffer;
26
27class BufferView : public Object<BufferView, VkBufferView>
28{
29public:
30 BufferView(const VkBufferViewCreateInfo* pCreateInfo, void* mem);
31
32 static size_t ComputeRequiredAllocationSize(const VkBufferViewCreateInfo* pCreateInfo)
33 {
34 return 0;
35 }
36
37 void *getPointer() const;
38 uint32_t getElementCount() const { return static_cast<uint32_t>(range / Format(format).bytes()); }
39 uint32_t getRangeInBytes() const { return static_cast<uint32_t>(range); }
40 VkFormat getFormat() const { return format; }
41
42 const uint32_t id = ImageView::nextID++; // ID space for sampling function cache, shared with imageviews
43private:
44 Buffer *buffer;
45 VkFormat format;
46 VkDeviceSize offset;
47 VkDeviceSize range;
48};
49
50static inline BufferView* Cast(VkBufferView object)
51{
52 return BufferView::Cast(object);
53}
54
55} // namespace vk
56
57#endif // VK_BUFFER_VIEW_HPP_
58