transfer_vector.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2016 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Magnus Norddahl
27 */
28 
29 #pragma once
30 
31 #include "transfer_buffer.h"
32 
33 namespace clan
34 {
37 
40  template<typename Type>
42  {
43  public:
46  {
47  }
48 
55  : TransferBuffer(gc, size * sizeof(Type), usage)
56  {
57  }
58 
65  TransferVector(GraphicContext &gc, Type *data, int size, BufferUsage usage = usage_dynamic_copy)
66  : TransferBuffer(gc, data, size * sizeof(Type), usage)
67  {
68  }
69 
70  TransferVector(GraphicContext &gc, const std::vector<Type> &data, BufferUsage usage = usage_dynamic_copy)
71  : TransferBuffer(gc, data.empty() ? (Type*)0 : &data[0], data.size() * sizeof(Type), usage)
72  {
73  }
74 
76  explicit TransferVector(const TransferBuffer &transfer_buffer)
77  : TransferBuffer(transfer_buffer)
78  {
79  }
80 
82  Type *get_data() { return reinterpret_cast<Type*>(TransferBuffer::get_data()); }
83 
84  Type &operator[](int index) { return get_data()[index]; }
85  Type &operator[](unsigned int index) { return get_data()[index]; }
86 
88  void upload_data(GraphicContext &gc, int offset, const Type *data, int size)
89  {
90  TransferBuffer::upload_data(gc, offset * sizeof(Type), data, size * sizeof(Type));
91  }
92 
94  void upload_data(GraphicContext &gc, int offset, const std::vector<Type> &data)
95  {
96  if (!data.empty())
97  TransferBuffer::upload_data(gc, offset * sizeof(Type), &data[0], data.size() * sizeof(Type));
98  }
99  };
100 
102 }
Definition: clanapp.h:35
void upload_data(GraphicContext &gc, int offset, const Type *data, int size)
Uploads data to transfer buffer.
Definition: transfer_vector.h:88
TransferVector()
Constructs a null instance.
Definition: transfer_vector.h:45
TransferVector(const TransferBuffer &transfer_buffer)
Constructs a TransferVector from an existing buffer.
Definition: transfer_vector.h:76
Type & operator[](int index)
Definition: transfer_vector.h:84
Type & operator[](unsigned int index)
Definition: transfer_vector.h:85
Type * get_data()
Retrieves a pointer to the mapped buffer.
Definition: transfer_vector.h:82
TransferVector(GraphicContext &gc, Type *data, int size, BufferUsage usage=usage_dynamic_copy)
Constructs a TransferVector.
Definition: transfer_vector.h:65
BufferUsage
Array Buffer usage enum.
Definition: buffer_usage.h:38
void upload_data(GraphicContext &gc, int offset, const std::vector< Type > &data)
Uploads data to transfer buffer.
Definition: transfer_vector.h:94
Interface to drawing graphics.
Definition: graphic_context.h:256
void * get_data()
Retrieves a pointer to the mapped buffer.
Transfer Vector.
Definition: transfer_vector.h:41
Definition: buffer_usage.h:48
TransferVector(GraphicContext &gc, const std::vector< Type > &data, BufferUsage usage=usage_dynamic_copy)
Definition: transfer_vector.h:70
Transfer Buffer.
Definition: transfer_buffer.h:44
void upload_data(GraphicContext &gc, int offset, const void *data, int size)
Uploads data to transfer buffer.
TransferVector(GraphicContext &gc, int size, BufferUsage usage=usage_dynamic_copy)
Constructs a TransferVector.
Definition: transfer_vector.h:54