Newton Dynamics  4.00
ndCudaContext.h
1 /* Copyright (c) <2003-2021> <Julio Jerez, Newton Game Dynamics>
2 *
3 * This software is provided 'as-is', without any express or implied
4 * warranty. In no event will the authors be held liable for any damages
5 * arising from the use of this software.
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7 * Permission is granted to anyone to use this software for any purpose,
8 * including commercial applications, and to alter it and redistribute it
9 * freely, subject to the following restrictions:
10 *
11 * 1. The origin of this software must not be misrepresented; you must not
12 * claim that you wrote the original software. If you use this software
13 * in a product, an acknowledgment in the product documentation would be
14 * appreciated but is not required.
15 *
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
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19 * 3. This notice may not be removed or altered from any source distribution.
20 */
21 
22 #ifndef __ND_CUDA_CONTEXT_H__
23 #define __ND_CUDA_CONTEXT_H__
24 
25 #include <cuda.h>
26 #include <cuda_runtime.h>
27 #include <ndNewtonStdafx.h>
28 #include <device_launch_parameters.h>
29 
30 #include "cuHostBuffer.h"
31 #include "ndBodyBuffer.h"
32 #include "cuSolverTypes.h"
33 #include "cuDeviceBuffer.h"
34 
35 #define D_THREADS_PER_BLOCK_BITS 8
36 #define D_THREADS_PER_BLOCK (1<<D_THREADS_PER_BLOCK_BITS)
37 
38 class ndCudaDevice
39 {
40  public:
41  ndCudaDevice();
42  ~ndCudaDevice();
43 
44  struct cudaDeviceProp m_prop;
45  ndUnsigned32 m_valid;
46  ndUnsigned32 m_blocksPerKernelCall;
47 };
48 
49 class ndCudaContext : public ndClassAlloc, public ndCudaDevice
50 {
51  public:
52  ndCudaContext();
53  ~ndCudaContext();
54  static ndCudaContext* CreateContext();
55 
56  void SwapBuffers();
57 
58  cuSceneInfo* m_sceneInfoGpu;
59  cuSceneInfo* m_sceneInfoCpu;
60  cuDeviceBuffer<unsigned> m_histogram;
61  ndArray<cuBodyProxy> m_bodyBufferCpu;
62  cuDeviceBuffer<cuBodyProxy> m_bodyBufferGpu;
63  cuDeviceBuffer<cuBodyAabbCell> m_bodyAabbCell;
64  cuDeviceBuffer<cuBodyAabbCell> m_bodyAabbCellScrath;
65  cuDeviceBuffer<cuBoundingBox> m_boundingBoxGpu;
66  cuHostBuffer<cuSpatialVector> m_transformBufferCpu0;
67  cuHostBuffer<cuSpatialVector> m_transformBufferCpu1;
68  cuDeviceBuffer<cuSpatialVector> m_transformBufferGpu0;
69  cuDeviceBuffer<cuSpatialVector> m_transformBufferGpu1;
70 
71  cudaStream_t m_solverMemCpyStream;
72  cudaStream_t m_solverComputeStream;
73  ndInt32 m_frameCounter;
74 };
75 
76 #endif
ndClassAlloc
Base class for providing memory allocation for all other engine classes.
Definition: ndClassAlloc.h:30
ndArray< cuBodyProxy >
cuDeviceBuffer< unsigned >
ndCudaDevice
Definition: ndCudaDevice.h:32
cuHostBuffer< cuSpatialVector >
ndCudaContext
Definition: ndCudaContext.h:33