1 /*
2 Bullet Continuous Collision Detection and Physics Library
3 Copyright (c) 2011 Advanced Micro Devices, Inc. http://bulletphysics.org
4
5 This software is provided 'as-is', without any express or implied warranty.
6 In no event will the authors be held liable for any damages arising from the use of this software.
7 Permission is granted to anyone to use this software for any purpose,
8 including commercial applications, and to alter it and redistribute it freely,
9 subject to the following restrictions:
10
11 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
12 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
13 3. This notice may not be removed or altered from any source distribution.
14 */
15
16 ///original author: Erwin Coumans
17
18 #include "Bullet3OpenCL/Initialize/b3OpenCLUtils.h"
19 #include "Bullet3OpenCL/ParallelPrimitives/b3OpenCLArray.h"
20
21 #include <stdio.h>
22
23 cl_context g_cxMainContext;
24 cl_command_queue g_cqCommandQue;
25
26 #include "Bullet3Common/b3Logging.h"
27
myerrorwarningprintf(const char * msg)28 void myerrorwarningprintf(const char* msg)
29 {
30 //OutputDebugStringA(msg);
31 //printf(msg);
32 }
33
myprintf(const char * msg)34 void myprintf(const char* msg)
35 {
36 //OutputDebugStringA(msg);
37 printf(msg);
38 }
39
main(int argc,char * argv[])40 int main(int argc, char* argv[])
41 {
42 b3SetCustomPrintfFunc(myprintf);
43 b3SetCustomWarningMessageFunc(myerrorwarningprintf);
44 b3SetCustomErrorMessageFunc(myerrorwarningprintf);
45
46 b3Printf("test b3Printf\n");
47 b3Warning("test warning\n");
48 b3Error("test error\n");
49
50 int ciErrNum = 0;
51
52 cl_device_type deviceType = CL_DEVICE_TYPE_ALL;
53 const char* vendorSDK = b3OpenCLUtils::getSdkVendorName();
54
55 b3Printf("This program was compiled using the %s OpenCL SDK\n", vendorSDK);
56 int numPlatforms = b3OpenCLUtils::getNumPlatforms();
57 b3Printf("Num Platforms = %d\n", numPlatforms);
58
59 for (int i = 0; i < numPlatforms; i++)
60 {
61 cl_platform_id platform = b3OpenCLUtils::getPlatform(i);
62 b3OpenCLPlatformInfo platformInfo;
63 b3OpenCLUtils::getPlatformInfo(platform, &platformInfo);
64 b3Printf("--------------------------------\n");
65 b3Printf("Platform info for platform nr %d:\n", i);
66 b3Printf(" CL_PLATFORM_VENDOR: \t\t\t%s\n", platformInfo.m_platformVendor);
67 b3Printf(" CL_PLATFORM_NAME: \t\t\t%s\n", platformInfo.m_platformName);
68 b3Printf(" CL_PLATFORM_VERSION: \t\t\t%s\n", platformInfo.m_platformVersion);
69
70 g_cxMainContext = b3OpenCLUtils::createContextFromPlatform(platform, deviceType, &ciErrNum);
71
72 int numDevices = b3OpenCLUtils::getNumDevices(g_cxMainContext);
73 b3Printf("Num Devices = %d\n", numDevices);
74 for (int j = 0; j < numDevices; j++)
75 {
76 cl_device_id device = b3OpenCLUtils::getDevice(g_cxMainContext, j);
77 b3OpenCLDeviceInfo devInfo;
78 b3OpenCLUtils::getDeviceInfo(device, &devInfo);
79 b3OpenCLUtils::printDeviceInfo(device);
80 g_cqCommandQue = clCreateCommandQueue(g_cxMainContext, device, 0, &ciErrNum);
81
82 b3OpenCLArray<char> memTester(g_cxMainContext, g_cqCommandQue, 0, true);
83 int maxMem = 0;
84 bool result = true;
85 for (size_t i = 1; result; i++)
86 {
87 size_t numBytes = i * 1024 * 1024;
88 result = memTester.resize(numBytes, false);
89
90 if (result)
91 {
92 maxMem = numBytes;
93 }
94 else
95 {
96 break;
97 }
98 }
99 printf("allocated %d MB successfully\n", maxMem / (1024 * 1024));
100 clReleaseCommandQueue(g_cqCommandQue);
101 g_cqCommandQue = 0;
102 }
103
104 clReleaseContext(g_cxMainContext);
105 g_cxMainContext = 0;
106 }
107
108 ///Easier method to initialize OpenCL using createContextFromType for a GPU
109 deviceType = CL_DEVICE_TYPE_GPU;
110
111 void* glCtx = 0;
112 void* glDC = 0;
113 b3Printf("Initialize OpenCL using b3OpenCLUtils::createContextFromType for CL_DEVICE_TYPE_GPU\n");
114 g_cxMainContext = b3OpenCLUtils::createContextFromType(deviceType, &ciErrNum, glCtx, glDC);
115 oclCHECKERROR(ciErrNum, CL_SUCCESS);
116
117 if (g_cxMainContext)
118 {
119 int numDev = b3OpenCLUtils::getNumDevices(g_cxMainContext);
120
121 for (int i = 0; i < numDev; i++)
122 {
123 cl_device_id device;
124 device = b3OpenCLUtils::getDevice(g_cxMainContext, i);
125 b3OpenCLDeviceInfo clInfo;
126 b3OpenCLUtils::getDeviceInfo(device, &clInfo);
127 b3OpenCLUtils::printDeviceInfo(device);
128 // create a command-queue
129 g_cqCommandQue = clCreateCommandQueue(g_cxMainContext, device, 0, &ciErrNum);
130 oclCHECKERROR(ciErrNum, CL_SUCCESS);
131 //normally you would create and execute kernels using this command queue
132
133 int maxMem = 0;
134 {
135 b3OpenCLArray<char> memTester(g_cxMainContext, g_cqCommandQue, 0, true);
136
137 bool result = true;
138 for (size_t i = 1; result; i++)
139 {
140 size_t numBytes = i * 1024 * 1024;
141 result = memTester.resize(numBytes, false);
142
143 if (result)
144 {
145 maxMem = numBytes;
146 }
147 else
148 {
149 break;
150 }
151 }
152 printf("allocated %d MB successfully\n", maxMem / (1024 * 1024));
153 }
154
155 clReleaseCommandQueue(g_cqCommandQue);
156 }
157
158 clReleaseContext(g_cxMainContext);
159 }
160 else
161 {
162 b3Printf("No OpenCL capable GPU found!");
163 }
164 b3Printf("press <Enter>\n");
165 getchar();
166 return 0;
167 }
168