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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
// Copyright (C) 2010-2014, Advanced Micro Devices, Inc., all rights reserved.
// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// @Authors
// Guoping Long, longguoping@gmail.com
// Niko Li, newlife20080214@gmail.com
// Yao Wang, bitwangyaoyao@gmail.com
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "precomp.hpp"
#include <stdlib.h>
#include <ctype.h>
#include <iomanip>
#include <fstream>
#include "cl_programcache.hpp"
#include "opencv2/ocl/private/opencl_utils.hpp"
namespace cv {
namespace ocl {
using namespace cl_utils;
#if defined(WIN32)
static bool __termination = false;
#endif
struct __Module
{
__Module();
~__Module();
cv::Mutex initializationMutex;
cv::Mutex currentContextMutex;
};
static bool parseOpenCLVersion(const std::string& versionStr, int& major, int& minor)
{
size_t p0 = versionStr.find(' ');
while (true)
{
if (p0 == std::string::npos)
break;
if (p0 + 1 >= versionStr.length())
break;
char c = versionStr[p0 + 1];
if (isdigit(c))
break;
p0 = versionStr.find(' ', p0 + 1);
}
size_t p1 = versionStr.find('.', p0);
size_t p2 = versionStr.find(' ', p1);
if (p0 == std::string::npos || p1 == std::string::npos || p2 == std::string::npos)
{
major = 0;
minor = 0;
return false;
}
std::string majorStr = versionStr.substr(p0 + 1, p1 - p0 - 1);
std::string minorStr = versionStr.substr(p1 + 1, p2 - p1 - 1);
major = atoi(majorStr.c_str());
minor = atoi(minorStr.c_str());
return true;
}
struct PlatformInfoImpl : public PlatformInfo
{
cl_platform_id platform_id;
std::vector<int> deviceIDs;
PlatformInfoImpl()
: platform_id(NULL)
{
}
void init(int id, cl_platform_id platform)
{
CV_Assert(platform_id == NULL);
this->_id = id;
platform_id = platform;
openCLSafeCall(getStringInfo(clGetPlatformInfo, platform, CL_PLATFORM_PROFILE, this->platformProfile));
openCLSafeCall(getStringInfo(clGetPlatformInfo, platform, CL_PLATFORM_VERSION, this->platformVersion));
openCLSafeCall(getStringInfo(clGetPlatformInfo, platform, CL_PLATFORM_NAME, this->platformName));
openCLSafeCall(getStringInfo(clGetPlatformInfo, platform, CL_PLATFORM_VENDOR, this->platformVendor));
openCLSafeCall(getStringInfo(clGetPlatformInfo, platform, CL_PLATFORM_EXTENSIONS, this->platformExtensons));
parseOpenCLVersion(this->platformVersion,
this->platformVersionMajor, this->platformVersionMinor);
}
};
struct DeviceInfoImpl: public DeviceInfo
{
cl_platform_id platform_id;
cl_device_id device_id;
DeviceInfoImpl()
: platform_id(NULL), device_id(NULL)
{
}
void init(int id, PlatformInfoImpl& platformInfoImpl, cl_device_id device)
{
CV_Assert(device_id == NULL);
this->_id = id;
platform_id = platformInfoImpl.platform_id;
device_id = device;
this->platform = &platformInfoImpl;
cl_device_type type = cl_device_type(-1);
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_TYPE, type));
this->deviceType = DeviceType(type);
openCLSafeCall(getStringInfo(clGetDeviceInfo, device, CL_DEVICE_PROFILE, this->deviceProfile));
openCLSafeCall(getStringInfo(clGetDeviceInfo, device, CL_DEVICE_VERSION, this->deviceVersion));
openCLSafeCall(getStringInfo(clGetDeviceInfo, device, CL_DEVICE_NAME, this->deviceName));
openCLSafeCall(getStringInfo(clGetDeviceInfo, device, CL_DEVICE_VENDOR, this->deviceVendor));
cl_uint vendorID = 0;
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_VENDOR_ID, vendorID));
this->deviceVendorId = vendorID;
openCLSafeCall(getStringInfo(clGetDeviceInfo, device, CL_DRIVER_VERSION, this->deviceDriverVersion));
openCLSafeCall(getStringInfo(clGetDeviceInfo, device, CL_DEVICE_EXTENSIONS, this->deviceExtensions));
parseOpenCLVersion(this->deviceVersion,
this->deviceVersionMajor, this->deviceVersionMinor);
size_t maxWGS = 0;
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_MAX_WORK_GROUP_SIZE, maxWGS));
this->maxWorkGroupSize = maxWGS;
cl_uint maxDimensions = 0;
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS, maxDimensions));
std::vector<size_t> maxWIS(maxDimensions);
openCLSafeCall(clGetDeviceInfo(device, CL_DEVICE_MAX_WORK_ITEM_SIZES, sizeof(size_t) * maxDimensions,
(void *)&maxWIS[0], 0));
this->maxWorkItemSizes = maxWIS;
cl_uint maxCU = 0;
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_MAX_COMPUTE_UNITS, maxCU));
this->maxComputeUnits = maxCU;
cl_ulong localMS = 0;
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_LOCAL_MEM_SIZE, localMS));
this->localMemorySize = (size_t)localMS;
cl_ulong maxMAS = 0;
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_MAX_MEM_ALLOC_SIZE, maxMAS));
this->maxMemAllocSize = (size_t)maxMAS;
cl_bool unifiedMemory = false;
openCLSafeCall(getScalarInfo(clGetDeviceInfo, device, CL_DEVICE_HOST_UNIFIED_MEMORY, unifiedMemory));
this->isUnifiedMemory = unifiedMemory != 0;
//initialize extra options for compilation. Currently only fp64 is included.
//Assume 4KB is enough to store all possible extensions.
openCLSafeCall(getStringInfo(clGetDeviceInfo, device, CL_DEVICE_EXTENSIONS, this->deviceExtensions));
size_t fp64_khr = this->deviceExtensions.find("cl_khr_fp64");
if(fp64_khr != std::string::npos)
{
this->compilationExtraOptions += "-D DOUBLE_SUPPORT";
this->haveDoubleSupport = true;
}
else
{
this->haveDoubleSupport = false;
}
size_t intel_platform = platformInfoImpl.platformVendor.find("Intel");
if(intel_platform != std::string::npos)
{
this->compilationExtraOptions += " -D INTEL_DEVICE";
this->isIntelDevice = true;
}
else
{
this->isIntelDevice = false;
}
if (id < 0)
{
#ifdef CL_VERSION_1_2
if (this->deviceVersionMajor > 1 || (this->deviceVersionMajor == 1 && this->deviceVersionMinor >= 2))
{
::clRetainDevice(device);
}
#endif
}
}
};
static std::vector<PlatformInfoImpl> global_platforms;
static std::vector<DeviceInfoImpl> global_devices;
static __Module __module;
cv::Mutex& getInitializationMutex()
{
return __module.initializationMutex;
}
static cv::Mutex& getCurrentContextMutex()
{
return __module.currentContextMutex;
}
static void split(const std::string &s, char delim, std::vector<std::string> &elems) {
std::stringstream ss(s);
std::string item;
while (std::getline(ss, item, delim)) {
elems.push_back(item);
}
}
static std::vector<std::string> split(const std::string &s, char delim) {
std::vector<std::string> elems;
split(s, delim, elems);
return elems;
}
// Layout: <Platform>:<CPU|GPU|ACCELERATOR|nothing=GPU/CPU>:<deviceName>
// Sample: AMD:GPU:
// Sample: AMD:GPU:Tahiti
// Sample: :GPU|CPU: = '' = ':' = '::'
static bool parseOpenCLDeviceConfiguration(const std::string& configurationStr,
std::string& platform, std::vector<std::string>& deviceTypes, std::string& deviceNameOrID)
{
std::string deviceTypesStr;
size_t p0 = configurationStr.find(':');
if (p0 != std::string::npos)
{
size_t p1 = configurationStr.find(':', p0 + 1);
if (p1 != std::string::npos)
{
size_t p2 = configurationStr.find(':', p1 + 1);
if (p2 != std::string::npos)
{
std::cerr << "ERROR: Invalid configuration string for OpenCL device" << std::endl;
return false;
}
else
{
// assume platform + device types + device name/id
platform = configurationStr.substr(0, p0);
deviceTypesStr = configurationStr.substr(p0 + 1, p1 - (p0 + 1));
deviceNameOrID = configurationStr.substr(p1 + 1, configurationStr.length() - (p1 + 1));
}
}
else
{
// assume platform + device types
platform = configurationStr.substr(0, p0);
deviceTypesStr = configurationStr.substr(p0 + 1, configurationStr.length() - (p0 + 1));
}
}
else
{
// assume only platform
platform = configurationStr;
}
deviceTypes = split(deviceTypesStr, '|');
return true;
}
static bool selectOpenCLDevice()
{
std::string platform;
std::vector<std::string> deviceTypes;
std::string deviceName;
const char* configuration = getenv("OPENCV_OPENCL_DEVICE");
if (configuration)
{
if (!parseOpenCLDeviceConfiguration(std::string(configuration), platform, deviceTypes, deviceName))
return false;
}
bool isID = false;
int deviceID = -1;
if (deviceName.length() == 1)
// We limit ID range to 0..9, because we want to write:
// - '2500' to mean i5-2500
// - '8350' to mean AMD FX-8350
// - '650' to mean GeForce 650
// To extend ID range change condition to '> 0'
{
isID = true;
for (size_t i = 0; i < deviceName.length(); i++)
{
if (!isdigit(deviceName[i]))
{
isID = false;
break;
}
}
if (isID)
{
deviceID = atoi(deviceName.c_str());
CV_Assert(deviceID >= 0);
}
}
const PlatformInfo* platformInfo = NULL;
if (platform.length() > 0)
{
PlatformsInfo platforms;
getOpenCLPlatforms(platforms);
for (size_t i = 0; i < platforms.size(); i++)
{
if (platforms[i]->platformName.find(platform) != std::string::npos)
{
platformInfo = platforms[i];
break;
}
}
if (platformInfo == NULL)
{
std::cerr << "ERROR: Can't find OpenCL platform by name: " << platform << std::endl;
goto not_found;
}
}
if (deviceTypes.size() == 0)
{
if (!isID)
{
deviceTypes.push_back("GPU");
deviceTypes.push_back("CPU");
}
else
{
deviceTypes.push_back("ALL");
}
}
for (size_t t = 0; t < deviceTypes.size(); t++)
{
int deviceType = 0;
if (deviceTypes[t] == "GPU")
{
deviceType = CVCL_DEVICE_TYPE_GPU;
}
else if (deviceTypes[t] == "CPU")
{
deviceType = CVCL_DEVICE_TYPE_CPU;
}
else if (deviceTypes[t] == "ACCELERATOR")
{
deviceType = CVCL_DEVICE_TYPE_ACCELERATOR;
}
else if (deviceTypes[t] == "ALL")
{
deviceType = CVCL_DEVICE_TYPE_ALL;
}
else
{
std::cerr << "ERROR: Unsupported device type for OpenCL device (GPU, CPU, ACCELERATOR): " << deviceTypes[t] << std::endl;
goto not_found;
}
DevicesInfo devices;
getOpenCLDevices(devices, deviceType, platformInfo);
for (size_t i = (isID ? deviceID : 0);
(isID ? (i == (size_t)deviceID) : true) && (i < devices.size());
i++)
{
if (isID || devices[i]->deviceName.find(deviceName) != std::string::npos)
{
// check for OpenCL 1.1
if (devices[i]->deviceVersionMajor < 1 ||
(devices[i]->deviceVersionMajor == 1 && devices[i]->deviceVersionMinor < 1))
{
std::cerr << "Skip unsupported version of OpenCL device: " << devices[i]->deviceName
<< "(" << devices[i]->platform->platformName << ")" << std::endl;
continue; // unsupported version of device, skip it
}
try
{
setDevice(devices[i]);
}
catch (...)
{
std::cerr << "ERROR: Can't select OpenCL device: " << devices[i]->deviceName
<< "(" << devices[i]->platform->platformName << ")" << std::endl;
goto not_found;
}
return true;
}
}
}
not_found:
std::cerr << "ERROR: Required OpenCL device not found, check configuration: " << (configuration == NULL ? "" : configuration) << std::endl
<< " Platform: " << (platform.length() == 0 ? "any" : platform) << std::endl
<< " Device types: ";
for (size_t t = 0; t < deviceTypes.size(); t++)
{
std::cerr << deviceTypes[t] << " ";
}
std::cerr << std::endl << " Device name: " << (deviceName.length() == 0 ? "any" : deviceName) << std::endl;
return false;
}
static bool __initialized = false;
static int initializeOpenCLDevices()
{
assert(!__initialized);
__initialized = true;
assert(global_devices.size() == 0);
std::vector<cl_platform_id> platforms;
try
{
openCLSafeCall(getPlatforms(platforms));
}
catch (cv::Exception&)
{
return 0; // OpenCL not found
}
global_platforms.resize(platforms.size());
for (size_t i = 0; i < platforms.size(); ++i)
{
PlatformInfoImpl& platformInfo = global_platforms[i];
cl_platform_id platform = platforms[i];
platformInfo.init(i, platform);
std::vector<cl_device_id> devices;
cl_int status = getDevices(platform, CL_DEVICE_TYPE_ALL, devices);
if(status != CL_DEVICE_NOT_FOUND)
openCLVerifyCall(status);
if(devices.size() > 0)
{
int baseIndx = global_devices.size();
global_devices.resize(baseIndx + devices.size());
platformInfo.deviceIDs.resize(devices.size());
platformInfo.devices.resize(devices.size());
for(size_t j = 0; j < devices.size(); ++j)
{
cl_device_id device = devices[j];
DeviceInfoImpl& deviceInfo = global_devices[baseIndx + j];
platformInfo.deviceIDs[j] = baseIndx + j;
deviceInfo.init(baseIndx + j, platformInfo, device);
}
}
}
for (size_t i = 0; i < platforms.size(); ++i)
{
PlatformInfoImpl& platformInfo = global_platforms[i];
for(size_t j = 0; j < platformInfo.deviceIDs.size(); ++j)
{
DeviceInfoImpl& deviceInfo = global_devices[platformInfo.deviceIDs[j]];
platformInfo.devices[j] = &deviceInfo;
}
}
return global_devices.size();
}
DeviceInfo::DeviceInfo()
: _id(-1), deviceType(DeviceType(0)),
deviceVendorId(-1),
maxWorkGroupSize(0), maxComputeUnits(0), localMemorySize(0), maxMemAllocSize(0),
deviceVersionMajor(0), deviceVersionMinor(0),
haveDoubleSupport(false), isUnifiedMemory(false),isIntelDevice(false),
platform(NULL)
{
// nothing
}
DeviceInfo::~DeviceInfo() { }
PlatformInfo::PlatformInfo()
: _id(-1),
platformVersionMajor(0), platformVersionMinor(0)
{
// nothing
}
PlatformInfo::~PlatformInfo() { }
class ContextImpl;
struct CommandQueue
{
ContextImpl* context_;
cl_command_queue clQueue_;
CommandQueue() : context_(NULL), clQueue_(NULL) { }
~CommandQueue() { release(); }
void create(ContextImpl* context_);
void release()
{
#ifdef WIN32
// if process is on termination stage (ExitProcess was called and other threads were terminated)
// then disable command queue release because it may cause program hang
if (!__termination)
#endif
{
if(clQueue_)
{
openCLSafeCall(clReleaseCommandQueue(clQueue_)); // some cleanup problems are here
}
}
clQueue_ = NULL;
context_ = NULL;
}
};
cv::TLSData<CommandQueue> commandQueueTLSData;
//////////////////////////////// OpenCL context ////////////////////////
//This is a global singleton class used to represent a OpenCL context.
class ContextImpl : public Context
{
public:
cl_device_id clDeviceID;
cl_context clContext;
const DeviceInfoImpl& deviceInfoImpl;
protected:
ContextImpl(const DeviceInfoImpl& _deviceInfoImpl, cl_context context)
: clDeviceID(_deviceInfoImpl.device_id), clContext(context), deviceInfoImpl(_deviceInfoImpl)
{
#ifdef CL_VERSION_1_2
if (supportsFeature(FEATURE_CL_VER_1_2))
{
openCLSafeCall(clRetainDevice(clDeviceID));
}
#endif
openCLSafeCall(clRetainContext(clContext));
ContextImpl* old = NULL;
{
cv::AutoLock lock(getCurrentContextMutex());
old = currentContext;
currentContext = this;
}
if (old != NULL)
{
delete old;
}
}
~ContextImpl()
{
CV_Assert(this != currentContext);
#ifdef CL_VERSION_1_2
#ifdef WIN32
// if process is on termination stage (ExitProcess was called and other threads were terminated)
// then disable device release because it may cause program hang
if (!__termination)
#endif
{
if (supportsFeature(FEATURE_CL_VER_1_2))
{
openCLSafeCall(clReleaseDevice(clDeviceID));
}
}
#endif
if (deviceInfoImpl._id < 0) // not in the global registry, so we should cleanup it
{
#ifdef CL_VERSION_1_2
if (supportsFeature(FEATURE_CL_VER_1_2))
{
openCLSafeCall(clReleaseDevice(deviceInfoImpl.device_id));
}
#endif
PlatformInfoImpl* platformImpl = (PlatformInfoImpl*)(deviceInfoImpl.platform);
delete platformImpl;
delete const_cast<DeviceInfoImpl*>(&deviceInfoImpl);
}
clDeviceID = NULL;
#ifdef WIN32
// if process is on termination stage (ExitProcess was called and other threads were terminated)
// then disable context release because it may cause program hang
if (!__termination)
#endif
{
if(clContext)
{
openCLSafeCall(clReleaseContext(clContext));
}
}
clContext = NULL;
}
public:
static void setContext(const DeviceInfo* deviceInfo);
static void initializeContext(void* pClPlatform, void* pClContext, void* pClDevice);
bool supportsFeature(FEATURE_TYPE featureType) const;
static void cleanupContext(void);
static ContextImpl* getContext();
private:
ContextImpl(const ContextImpl&); // disabled
ContextImpl& operator=(const ContextImpl&); // disabled
static ContextImpl* currentContext;
};
ContextImpl* ContextImpl::currentContext = NULL;
static bool __deviceSelected = false;
Context* Context::getContext()
{
return ContextImpl::getContext();
}
ContextImpl* ContextImpl::getContext()
{
if (currentContext == NULL)
{
static bool defaultInitiaization = false;
if (!defaultInitiaization)
{
cv::AutoLock lock(getInitializationMutex());
try
{
if (!__initialized)
{
if (initializeOpenCLDevices() == 0)
{
CV_Error(CV_OpenCLInitError, "OpenCL not available");
}
}
if (!__deviceSelected)
{
if (!selectOpenCLDevice())
{
CV_Error(CV_OpenCLInitError, "Can't select OpenCL device");
}
}
defaultInitiaization = true;
}
catch (...)
{
defaultInitiaization = true;
throw;
}
}
CV_Assert(currentContext != NULL);
}
return currentContext;
}
bool Context::supportsFeature(FEATURE_TYPE featureType) const
{
return ((ContextImpl*)this)->supportsFeature(featureType);
}
const DeviceInfo& Context::getDeviceInfo() const
{
return ((ContextImpl*)this)->deviceInfoImpl;
}
const void* Context::getOpenCLContextPtr() const
{
return &(((ContextImpl*)this)->clContext);
}
const void* Context::getOpenCLCommandQueuePtr() const
{
ContextImpl* pThis = (ContextImpl*)this;
CommandQueue* commandQueue = commandQueueTLSData.get();
if (commandQueue->context_ != pThis)
{
commandQueue->create(pThis);
}
return &commandQueue->clQueue_;
}
const void* Context::getOpenCLDeviceIDPtr() const
{
return &(((ContextImpl*)this)->clDeviceID);
}
bool ContextImpl::supportsFeature(FEATURE_TYPE featureType) const
{
switch (featureType)
{
case FEATURE_CL_INTEL_DEVICE:
return deviceInfoImpl.isIntelDevice;
case FEATURE_CL_DOUBLE:
return deviceInfoImpl.haveDoubleSupport;
case FEATURE_CL_UNIFIED_MEM:
return deviceInfoImpl.isUnifiedMemory;
case FEATURE_CL_VER_1_2:
return deviceInfoImpl.deviceVersionMajor > 1 || (deviceInfoImpl.deviceVersionMajor == 1 && deviceInfoImpl.deviceVersionMinor >= 2);
}
CV_Error(CV_StsBadArg, "Invalid feature type");
return false;
}
void fft_teardown();
void clBlasTeardown();
void ContextImpl::cleanupContext(void)
{
fft_teardown();
clBlasTeardown();
cv::AutoLock lock(getCurrentContextMutex());
if (currentContext)
{
ContextImpl* ctx = currentContext;
currentContext = NULL;
delete ctx;
}
}
void ContextImpl::setContext(const DeviceInfo* deviceInfo)
{
CV_Assert(deviceInfo->_id >= 0); // we can't specify custom devices
CV_Assert(deviceInfo->_id < (int)global_devices.size());
{
cv::AutoLock lock(getCurrentContextMutex());
if (currentContext)
{
if (currentContext->deviceInfoImpl._id == deviceInfo->_id)
return;
}
}
DeviceInfoImpl& infoImpl = global_devices[deviceInfo->_id];
CV_Assert(deviceInfo == &infoImpl);
cl_int status = 0;
cl_context_properties cps[3] = { CL_CONTEXT_PLATFORM, (cl_context_properties)(infoImpl.platform_id), 0 };
cl_context clContext = clCreateContext(cps, 1, &infoImpl.device_id, NULL, NULL, &status);
openCLVerifyCall(status);
ContextImpl* ctx = new ContextImpl(infoImpl, clContext);
clReleaseContext(clContext);
(void)ctx;
}
void ContextImpl::initializeContext(void* pClPlatform, void* pClContext, void* pClDevice)
{
CV_Assert(pClPlatform != NULL);
CV_Assert(pClContext != NULL);
CV_Assert(pClDevice != NULL);
cl_platform_id platform = *(cl_platform_id*)pClPlatform;
cl_context context = *(cl_context*)pClContext;
cl_device_id device = *(cl_device_id*)pClDevice;
PlatformInfoImpl* platformInfoImpl = new PlatformInfoImpl();
platformInfoImpl->init(-1, platform);
DeviceInfoImpl* deviceInfoImpl = new DeviceInfoImpl();
deviceInfoImpl->init(-1, *platformInfoImpl, device);
ContextImpl* ctx = new ContextImpl(*deviceInfoImpl, context);
(void)ctx;
}
void CommandQueue::create(ContextImpl* context)
{
release();
cl_int status = 0;
// TODO add CL_QUEUE_PROFILING_ENABLE
cl_command_queue clCmdQueue = clCreateCommandQueue(context->clContext, context->clDeviceID, 0, &status);
openCLVerifyCall(status);
context_ = context;
clQueue_ = clCmdQueue;
}
int getOpenCLPlatforms(PlatformsInfo& platforms)
{
if (!__initialized)
initializeOpenCLDevices();
platforms.clear();
for (size_t id = 0; id < global_platforms.size(); ++id)
{
PlatformInfoImpl& impl = global_platforms[id];
platforms.push_back(&impl);
}
return platforms.size();
}
int getOpenCLDevices(std::vector<const DeviceInfo*> &devices, int deviceType, const PlatformInfo* platform)
{
if (!__initialized)
initializeOpenCLDevices();
devices.clear();
switch(deviceType)
{
case CVCL_DEVICE_TYPE_DEFAULT:
case CVCL_DEVICE_TYPE_CPU:
case CVCL_DEVICE_TYPE_GPU:
case CVCL_DEVICE_TYPE_ACCELERATOR:
case CVCL_DEVICE_TYPE_ALL:
break;
default:
return 0;
}
if (platform == NULL)
{
for (size_t id = 0; id < global_devices.size(); ++id)
{
DeviceInfoImpl& deviceInfo = global_devices[id];
if (((int)deviceInfo.deviceType & deviceType) != 0)
{
devices.push_back(&deviceInfo);
}
}
}
else
{
for (size_t id = 0; id < platform->devices.size(); ++id)
{
const DeviceInfo* deviceInfo = platform->devices[id];
if (((int)deviceInfo->deviceType & deviceType) == deviceType)
{
devices.push_back(deviceInfo);
}
}
}
return (int)devices.size();
}
void setDevice(const DeviceInfo* info)
{
try
{
ContextImpl::setContext(info);
__deviceSelected = true;
}
catch (...)
{
__deviceSelected = true;
throw;
}
}
void initializeContext(void* pClPlatform, void* pClContext, void* pClDevice)
{
try
{
ContextImpl::initializeContext(pClPlatform, pClContext, pClDevice);
__deviceSelected = true;
}
catch (...)
{
__deviceSelected = true;
throw;
}
}
bool supportsFeature(FEATURE_TYPE featureType)
{
return Context::getContext()->supportsFeature(featureType);
}
__Module::__Module()
{
/* moved to Context::getContext(): initializeOpenCLDevices(); */
}
__Module::~__Module()
{
#if defined(WIN32) && defined(CVAPI_EXPORTS)
// nothing, see DllMain
#else
ContextImpl::cleanupContext();
#endif
}
} // namespace ocl
} // namespace cv
#if defined(WIN32) && defined(CVAPI_EXPORTS)
extern "C"
BOOL WINAPI DllMain(HINSTANCE /*hInst*/, DWORD fdwReason, LPVOID lpReserved);
extern "C"
BOOL WINAPI DllMain(HINSTANCE /*hInst*/, DWORD fdwReason, LPVOID lpReserved)
{
if (fdwReason == DLL_PROCESS_DETACH)
{
if (lpReserved != NULL) // called after ExitProcess() call
cv::ocl::__termination = true;
cv::ocl::ContextImpl::cleanupContext();
}
return TRUE;
}
#endif