1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/*
* 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 (at your option) 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, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright 2021, Blender Foundation.
*/
#pragma once
#include "BLI_map.hh"
#include "BLI_vector.hh"
#include "DNA_vec_types.h"
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
namespace blender::compositor {
class MemoryBuffer;
class NodeOperation;
/**
* Stores and shares operations rendered buffers including render data. Buffers are
* disposed once all dependent operations have finished reading them.
*/
class SharedOperationBuffers {
private:
typedef struct BufferData {
public:
BufferData();
std::unique_ptr<MemoryBuffer> buffer;
blender::Vector<rcti> render_areas;
int registered_reads;
int received_reads;
bool is_rendered;
} BufferData;
blender::Map<NodeOperation *, BufferData> buffers_;
public:
/**
* Whether given operation area to render is already registered.
*/
bool is_area_registered(NodeOperation *op, const rcti &area_to_render);
/**
* Registers an operation area to render.
*/
void register_area(NodeOperation *op, const rcti &area_to_render);
/**
* Whether given operation has any registered reads (other operation registered it depends on
* given operation).
*/
bool has_registered_reads(NodeOperation *op);
/**
* Registers an operation read (other operation depends on given operation).
*/
void register_read(NodeOperation *read_op);
/**
* Get registered areas given operation needs to render.
*/
Vector<rcti> get_areas_to_render(NodeOperation *op, int offset_x, int offset_y);
/**
* Whether this operation buffer has already been rendered.
*/
bool is_operation_rendered(NodeOperation *op);
/**
* Stores given operation rendered buffer.
*/
void set_rendered_buffer(NodeOperation *op, std::unique_ptr<MemoryBuffer> buffer);
/**
* Get given operation rendered buffer.
*/
MemoryBuffer *get_rendered_buffer(NodeOperation *op);
/**
* Reports an operation has finished reading given operation. If all given operation dependencies
* have finished its buffer will be disposed.
*/
void read_finished(NodeOperation *read_op);
private:
BufferData &get_buffer_data(NodeOperation *op);
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("COM:SharedOperationBuffers")
#endif
};
} // namespace blender::compositor
|