blob: da20e2b8272e793a78b480310771299415fa4bfb (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#pragma once
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
namespace blender::compositor {
struct WorkPackage;
class CompositorContext;
/** \brief the workscheduler
* \ingroup execution
*/
struct WorkScheduler {
/**
* \brief schedule a chunk of a group to be calculated.
* An execution group schedules a chunk in the WorkScheduler
* when ExecutionGroup.get_flags().open_cl is set the work will be handled by a OpenCLDevice
* otherwise the work is scheduled for an CPUDevice
* \see ExecutionGroup.execute
*/
static void schedule(WorkPackage *package);
/**
* \brief initialize the WorkScheduler
*
* during initialization the mutexes are initialized.
* there are two mutexes (for every device type one)
* After mutex initialization the system is queried in order to count the number of CPUDevices
* and GPUDevices to be created. For every hardware thread a CPUDevice and for every OpenCL GPU
* device a OpenCLDevice is created. these devices are stored in a separate list (cpudevices &
* gpudevices)
*
* This function can be called multiple times to lazily initialize OpenCL.
*/
static void initialize(bool use_opencl, int num_cpu_threads);
/**
* \brief deinitialize the WorkScheduler
* free all allocated resources
*/
static void deinitialize();
/**
* \brief Start the execution
* this methods will start the WorkScheduler. Inside this method all threads are initialized.
* for every device a thread is created.
* \see initialize Initialization and query of the number of devices
*/
static void start(const CompositorContext &context);
/**
* \brief stop the execution
* All created thread by the start method are destroyed.
* \see start
*/
static void stop();
/**
* \brief wait for all work to be completed.
*/
static void finish();
/**
* \brief Are there OpenCL capable GPU devices initialized?
* the result of this method is stored in the CompositorContext
* A node can generate a different operation tree when OpenCLDevices exists.
* \see CompositorContext.get_has_active_opencl_devices
*/
static bool has_gpu_devices();
static int get_num_cpu_threads();
static int current_thread_id();
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("COM:WorkScheduler")
#endif
};
} // namespace blender::compositor
|
