Commit eac782df784f1f10a1e864139f22233247ea36e6
1 parent
24536713
removed MatManager from master because it isn't ready
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155 deletions
openbr/core/cuda/MatManager.cu deleted
| 1 | -#include <pthread.h> | ||
| 2 | -#include <semaphore.h> | ||
| 3 | - | ||
| 4 | -#include <opencv2/opencv.hpp> | ||
| 5 | - | ||
| 6 | -#include "MatManager.hpp" | ||
| 7 | - | ||
| 8 | -using namespace cv; | ||
| 9 | -using namespace cv::gpu; | ||
| 10 | - | ||
| 11 | -namespace br { namespace cuda { | ||
| 12 | - MatManager::MatManager(int num) { | ||
| 13 | - _numMats = num; | ||
| 14 | - | ||
| 15 | - // initialize the an array of Mats | ||
| 16 | - _mats = (uint8_t**)malloc(num * sizeof(uint8_t*)); | ||
| 17 | - _matTaken = (bool*)malloc(num * sizeof(bool)); | ||
| 18 | - _matsDimension = (int*)malloc(num * sizeof(int)); | ||
| 19 | - | ||
| 20 | - for (int i=0; i < num; i++) { | ||
| 21 | - cudaMalloc(&_mats[i], 1 * sizeof(uint8_t)); | ||
| 22 | - | ||
| 23 | - // initialize matTaken | ||
| 24 | - _matTaken[i] = false; | ||
| 25 | - | ||
| 26 | - // initialize all mat dimensions to be 1 | ||
| 27 | - _matsDimension[i] = 1; | ||
| 28 | - } | ||
| 29 | - | ||
| 30 | - // initialize the locks | ||
| 31 | - _matTakenLock = new pthread_mutex_t; | ||
| 32 | - pthread_mutex_init(_matTakenLock, NULL); | ||
| 33 | - _matsDimensionLock = new pthread_mutex_t; | ||
| 34 | - pthread_mutex_init(_matsDimensionLock, NULL); | ||
| 35 | - | ||
| 36 | - // initialize the semaphore | ||
| 37 | - _matSemaphore = new sem_t; | ||
| 38 | - sem_init(_matSemaphore, 0, _numMats); | ||
| 39 | - } | ||
| 40 | - | ||
| 41 | - MatManager::matindex MatManager::reserve(Mat &mat) { | ||
| 42 | - int reservedMatIndex = 0; | ||
| 43 | - | ||
| 44 | - sem_wait(_matSemaphore); | ||
| 45 | - pthread_mutex_lock(_matTakenLock); | ||
| 46 | - int i; | ||
| 47 | - for (i=0; i < _numMats; i++) { | ||
| 48 | - if ( !_matTaken[i] ) { | ||
| 49 | - _matTaken[i] = true; | ||
| 50 | - reservedMatIndex = i; | ||
| 51 | - break; | ||
| 52 | - } | ||
| 53 | - } | ||
| 54 | - if (i == _numMats) { | ||
| 55 | - std::cout << "Cannot reserve a mat. Not enough GpuMat resourses\n" << std::endl << std::flush; | ||
| 56 | - } | ||
| 57 | - | ||
| 58 | - pthread_mutex_unlock(_matTakenLock); | ||
| 59 | - | ||
| 60 | - // reallocate if size does not match | ||
| 61 | - pthread_mutex_lock(_matsDimensionLock); | ||
| 62 | - if (_matsDimension[reservedMatIndex] != mat.rows * mat.cols) { | ||
| 63 | - cudaFree(_mats[reservedMatIndex]); // free the previous memory first | ||
| 64 | - cudaMalloc(&_mats[reservedMatIndex], mat.rows * mat.cols * sizeof(uint8_t)); | ||
| 65 | - // change the dimension of that matrix | ||
| 66 | - _matsDimension[reservedMatIndex] = mat.rows * mat.cols; | ||
| 67 | - | ||
| 68 | - } | ||
| 69 | - pthread_mutex_unlock(_matsDimensionLock); | ||
| 70 | - return reservedMatIndex; | ||
| 71 | - } | ||
| 72 | - | ||
| 73 | - void MatManager::upload(MatManager::matindex reservedMatIndex, Mat& mat) { | ||
| 74 | - // copy the content of the Mat to GPU | ||
| 75 | - uint8_t* reservedMat = _mats[reservedMatIndex]; | ||
| 76 | - cudaMemcpy(reservedMat, mat.ptr<uint8_t>(), mat.rows * mat.cols, cudaMemcpyHostToDevice); | ||
| 77 | - } | ||
| 78 | - | ||
| 79 | - void MatManager::download(MatManager::matindex reservedMatIndex, Mat& dstMat) { | ||
| 80 | - // copy the mat data back | ||
| 81 | - int dimension = dstMat.rows * dstMat.cols; | ||
| 82 | - uint8_t* reservedMat = _mats[reservedMatIndex]; | ||
| 83 | - cudaMemcpy(dstMat.ptr<uint8_t>(), reservedMat, dimension, cudaMemcpyDeviceToHost); | ||
| 84 | - } | ||
| 85 | - | ||
| 86 | - void MatManager::release(MatManager::matindex reservedMatIndex) { | ||
| 87 | - uint8_t* reservedMat = _mats[reservedMatIndex]; | ||
| 88 | - pthread_mutex_lock(_matTakenLock); | ||
| 89 | - bool foundMatch = false; | ||
| 90 | - for (int i=0; i < _numMats; i++) { | ||
| 91 | - if (reservedMat == _mats[i]) { | ||
| 92 | - _matTaken[i] = false; | ||
| 93 | - foundMatch = true; | ||
| 94 | - } | ||
| 95 | - } | ||
| 96 | - pthread_mutex_unlock(_matTakenLock); | ||
| 97 | - | ||
| 98 | - // return unconditionally if we didn't find a match | ||
| 99 | - if (!foundMatch) { | ||
| 100 | - std::cout << "Reservedmat is not in the _mats array" << std::endl << std::flush; | ||
| 101 | - return; | ||
| 102 | - } | ||
| 103 | - sem_post(_matSemaphore); | ||
| 104 | - } | ||
| 105 | - | ||
| 106 | - MatManager::~MatManager() { | ||
| 107 | - // assume a single thread is destroying the manager | ||
| 108 | - // TODO(colin): add the destroy code | ||
| 109 | - //std::cout << "Start to destroy.." << std::endl << std::flush; | ||
| 110 | - } | ||
| 111 | - | ||
| 112 | - uint8_t* MatManager::get_mat_pointer_from_index(MatManager::matindex matIndex) { | ||
| 113 | - return _mats[matIndex]; | ||
| 114 | - } | ||
| 115 | - | ||
| 116 | -}} |
openbr/core/cuda/MatManager.hpp deleted
| 1 | -/* | ||
| 2 | -NOTES | ||
| 3 | -Mat reservations should return a handle instead of a pointer | ||
| 4 | -*/ | ||
| 5 | - | ||
| 6 | -#include <pthread.h> | ||
| 7 | -#include <semaphore.h> | ||
| 8 | - | ||
| 9 | -#include <opencv2/opencv.hpp> | ||
| 10 | -#include <opencv2/gpu/gpu.hpp> | ||
| 11 | - | ||
| 12 | -using namespace cv; | ||
| 13 | -using namespace cv::gpu; | ||
| 14 | - | ||
| 15 | -namespace br { namespace cuda { | ||
| 16 | - class MatManager { | ||
| 17 | - private: | ||
| 18 | - int _numMats; | ||
| 19 | - uint8_t** _mats; // holds all the mats | ||
| 20 | - bool* _matTaken; // holds whether or not they are taken | ||
| 21 | - int* _matsDimension; // holds the dimension of the Mats | ||
| 22 | - | ||
| 23 | - pthread_mutex_t* _matTakenLock; // lock for matTaken table | ||
| 24 | - pthread_mutex_t* _matsDimensionLock; // lock for _matsDimension table and _mats table | ||
| 25 | - sem_t* _matSemaphore; | ||
| 26 | - | ||
| 27 | - public: | ||
| 28 | - typedef int matindex; | ||
| 29 | - MatManager(int num); | ||
| 30 | - | ||
| 31 | - int reserve(Mat &mat); | ||
| 32 | - void upload(matindex reservedMatIndex, Mat& mat); | ||
| 33 | - void download(matindex reservedMatIndex, Mat& dstMat); | ||
| 34 | - void release(matindex matIndex); | ||
| 35 | - uint8_t* get_mat_pointer_from_index(matindex matIndex); | ||
| 36 | - | ||
| 37 | - ~MatManager(); | ||
| 38 | - }; | ||
| 39 | -}} |