generic-library/opencv
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Fixes for Android support.

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This commit is contained in:
Alexander Smorkalov
2013-12-19 09:38:46 +04:00
parent be530bd085
commit 442082eb0f
3 changed files with 103 additions and 4 deletions
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99
modules/core/src/gpumat.cpp
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@@ -43,7 +43,6 @@
#include "precomp.hpp"
#include "opencv2/core/gpumat.hpp"
#include <iostream>
#include <dlfcn.h>
#if defined(HAVE_CUDA) || defined(DYNAMIC_CUDA_SUPPORT)
#include <cuda_runtime.h>
@@ -61,6 +60,22 @@
#endif
#endif
#ifdef DYNAMIC_CUDA_SUPPORT
#include <dlfcn.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#endif
#ifdef ANDROID
# include <android/log.h>
# define LOG_TAG "OpenCV::CUDA"
# define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__))
# define LOGD(...) ((void)__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__))
# define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__))
#endif
using namespace std;
using namespace cv;
using namespace cv::gpu;
@@ -69,16 +84,90 @@ using namespace cv::gpu;
#include "gpumat_cuda.hpp"
#ifdef DYNAMIC_CUDA_SUPPORT
typedef GpuFuncTable* (*GpuFactoryType)();
typedef DeviceInfoFuncTable* (*DeviceInfoFactoryType)();
static GpuFactoryType gpuFactory = NULL;
static DeviceInfoFactoryType deviceInfoFactory = NULL;
# if defined(__linux__) || defined(__APPLE__) || defined (ANDROID)
# ifdef ANDROID
static const std::string getCudaSupportLibName()
{
Dl_info dl_info;
if(0 != dladdr((void *)getCudaSupportLibName, &dl_info))
{
LOGD("Library name: %s", dl_info.dli_fname);
LOGD("Library base address: %p", dl_info.dli_fbase);
const char* libName=dl_info.dli_fname;
while( ((*libName)=='/') || ((*libName)=='.') )
libName++;
char lineBuf[2048];
FILE* file = fopen("/proc/self/smaps", "rt");
if(file)
{
while (fgets(lineBuf, sizeof lineBuf, file) != NULL)
{
//verify that line ends with library name
int lineLength = strlen(lineBuf);
int libNameLength = strlen(libName);
//trim end
for(int i = lineLength - 1; i >= 0 && isspace(lineBuf[i]); --i)
{
lineBuf[i] = 0;
--lineLength;
}
if (0 != strncmp(lineBuf + lineLength - libNameLength, libName, libNameLength))
{
//the line does not contain the library name
continue;
}
//extract path from smaps line
char* pathBegin = strchr(lineBuf, '/');
if (0 == pathBegin)
{
LOGE("Strange error: could not find path beginning in lin \"%s\"", lineBuf);
continue;
}
char* pathEnd = strrchr(pathBegin, '/');
pathEnd[1] = 0;
LOGD("Libraries folder found: %s", pathBegin);
fclose(file);
return std::string(pathBegin) + "/libopencv_core_cuda.so";
}
fclose(file);
LOGE("Could not find library path");
}
else
{
LOGE("Could not read /proc/self/smaps");
}
}
else
{
LOGE("Could not get library name and base address");
}
return string();
}
# else
static const std::string getCudaSupportLibName()
{
return "libopencv_core_cuda.so";
}
# endif
static bool loadCudaSupportLib()
{
@@ -102,11 +191,15 @@ static bool loadCudaSupportLib()
return false;
}
dlclose(handle);
return true;
}
# else
# error "Dynamic CUDA support is not implemented for this platform!"
# endif
#endif
static GpuFuncTable* gpuFuncTable()
{
#ifdef DYNAMIC_CUDA_SUPPORT