bzr branch
http://suren.me/webbzr/ani/mrses
1
by Suren A. Chilingaryan
Initial import |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <sys/time.h> |
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#include <mex.h> |
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#include "mrses.h" |
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#include "msg.h" |
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#define MAX_FILE_NAME 2048
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/*#define USE_UNDOCUMENTED*/
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#ifndef EXTERN_C
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# ifdef __cplusplus
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#define EXTERN_C extern "C"
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# else
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#define EXTERN_C extern
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# endif
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#endif
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#ifdef USE_UNDOCUMENTED
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EXTERN_C mxArray *mxCreateSharedDataCopy(const mxArray *pr); |
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#endif /* USE_UNDOCUMENTED */ |
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typedef enum { |
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ACTION_SETUP = 1, |
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ACTION_COMPUTE = 10, |
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ACTION_ITERATE = 15, |
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ACTION_GET_HIST = 16 |
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} TAction; |
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struct MEXContextT { |
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MRSESContext mrses; |
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mxArray *res; |
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mxArray *hist; |
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unsigned int initialized; |
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unsigned int width, max_block; |
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};
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typedef struct MEXContextT MEXContextS; |
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typedef struct MEXContextT *MEXContext; |
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static MEXContext pstate = NULL; |
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MEXContext mexCreateContext() { |
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pstate = (MEXContext)malloc(sizeof(MEXContextS)); |
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if (pstate) { |
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MRSESContext ctx = mrses_create_context(); |
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if (!ctx) { |
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free(pstate); |
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return NULL; |
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}
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memset(pstate, 0, sizeof(MEXContextS)); |
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pstate->mrses = ctx; |
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}
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return pstate; |
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}
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void mexDestroyContext(MEXContext pstate) { |
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if (pstate) { |
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if (pstate->res) { |
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mxDestroyArray(pstate->res); |
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}
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if (pstate->hist) { |
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mxDestroyArray(pstate->hist); |
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}
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if (pstate->mrses) { |
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mrses_destroy_context(pstate->mrses); |
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}
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free(pstate); |
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}
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}
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static void selfClean() { |
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if (pstate) { |
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reportMessage("Cleaning hw instance"); |
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mexDestroyContext(pstate); |
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pstate = NULL; |
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}
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}
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void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) { |
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int err; |
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mxArray *idMatrix; |
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int32_t *idPtr; |
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static int32_t id = 0; |
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MRSESDistance dist; |
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MRSESIntType *ires; |
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const mxArray *A, *B, *index; |
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mxArray *res; |
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unsigned int iterations; |
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unsigned int properties; |
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unsigned int block_size; |
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unsigned int width; |
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MEXContext ps; |
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TAction action; |
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if (!nrhs) { |
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reportMessage("Initializing hw instance"); |
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if (nlhs != 1) { |
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reportError("You should accept a single result from initialization call"); |
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return; |
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}
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idMatrix = mxCreateNumericMatrix(1, 1, mxINT32_CLASS, mxREAL); |
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if (!idMatrix) { |
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reportError("Initialization is failed"); |
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return; |
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}
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if (pstate) mexDestroyContext(pstate); |
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pstate = mexCreateContext(); |
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if (pstate) { |
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mexAtExit(selfClean); |
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id = 1; |
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} else if (id > 0) { |
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reportError("Context initialization has failed"); |
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id = -1; |
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}
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idPtr = (int32_t*)mxGetData(idMatrix); |
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idPtr[0] = id; |
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plhs[0] = idMatrix; |
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return; |
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} else { |
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if (!pstate) { |
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reportError("normxcorr_hw should be initialized first"); |
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return; |
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}
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}
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/* Clean request */
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if (nrhs == 1) { |
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selfClean(); |
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return; |
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}
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ps = pstate; |
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action = (TAction)(mxGetScalar((mxArray*)prhs[1])); |
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/*reportMessage("Executing normxcorr_hw action: %u", action);*/
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switch (action) { |
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case ACTION_SETUP: |
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if ((nrhs < 6)||(nrhs > 7)) { |
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reportError("Initialization call expects following arguments: 'width', 'block_size', matrices 'A' and 'B', distance_type"); |
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return; |
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}
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width = (int)mxGetScalar(prhs[2]); |
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block_size = (int)mxGetScalar(prhs[3]); |
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if (nrhs == 7) { |
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dist = (int)mxGetScalar(prhs[6]) - 1; |
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if (dist >= MRSES_DISTANCE_LAST) { |
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reportError("Invalid distance mode is requested: %i", dist); |
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return; |
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}
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} else dist = BHATTACHARYYA; |
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A = prhs[4]; |
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B = prhs[5]; |
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properties = mxGetN(A); |
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if (properties != mxGetN(B)) { |
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reportError("Dimenssions of matrices A and B does not match: %i, %i", properties, mxGetN(B)); |
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return; |
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}
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if ((mxGetClassID(A) == mxSINGLE_CLASS)&&(mxGetClassID(B) == mxSINGLE_CLASS)) { |
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err = mrses_init_context(ps->mrses, properties, mxGetM(A), mxGetData(A), mxGetM(B), mxGetData(B)); |
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} else if ((mxGetClassID(A) == mxDOUBLE_CLASS)&&(mxGetClassID(B) == mxDOUBLE_CLASS)) { |
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err = mrses_init_context_from_double(ps->mrses, properties, mxGetM(A), mxGetData(A), mxGetM(B), mxGetData(B)); |
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} else { |
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reportError("Only single-precision floating point numbers are supported"); |
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return; |
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}
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if (err) { |
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reportError("Initialization is failed with error, %i", err); |
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return; |
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}
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err = mrses_set_distance_mode(ps->mrses, dist); |
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if (err) { |
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reportError("Failed to set distance mode, error %i", err); |
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return; |
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}
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err = mrses_prepare(ps->mrses, width, block_size); |
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if (err) { |
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reportError("Failed to prepare for execution, error %i", err); |
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return; |
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}
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if (ps->res) mxDestroyArray(ps->res); |
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ps->res = mxCreateNumericMatrix(block_size, 1, mxSINGLE_CLASS, mxREAL); |
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if (ps->res) mexMakeArrayPersistent(ps->res); |
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else { |
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reportError("Allocation of result matrix of size %u*float bytes is failed", block_size); |
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return; |
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}
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if (ps->hist) mxDestroyArray(ps->hist); |
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ps->hist = mxCreateNumericMatrix(1, properties, mxUINT32_CLASS, mxREAL); |
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if (ps->hist) mexMakeArrayPersistent(ps->hist); |
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else { |
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reportError("Allocation of result matrix of size %u*uint32_t bytes is failed", properties); |
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return; |
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}
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ps->width = width; |
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ps->max_block = block_size; |
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ps->initialized = 1; |
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break; |
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case ACTION_COMPUTE: |
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if (!pstate->initialized) { |
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reportError("We are not initialized yet, issue intialize call first"); |
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return; |
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}
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if ((nlhs != 1)||((nrhs < 3)||(nrhs > 4))) { |
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reportError("Compute call expects following arguments: 'block_size', 'index'. It should accept a single result matrix as well."); |
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return; |
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}
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if (nrhs > 3) { |
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block_size = (int)mxGetScalar(prhs[2]); |
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index = prhs[3]; |
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if (mxGetN(index) < block_size) { |
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reportError("Index matrix does not contain specified number of blocks"); |
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return; |
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}
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} else { |
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index = prhs[2]; |
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block_size = mxGetN(index); |
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}
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if (block_size > pstate->max_block) { |
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reportError("The block is too big: maximum configured size is %i, but %i supplied", pstate->max_block, block_size); |
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return; |
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}
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width = mxGetM(index); |
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if (pstate->width != width) { |
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reportError("The index matrix dimension does not fit requirement: width = %i, but index side is %i", pstate->width, width); |
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return; |
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}
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if (mxGetClassID(index) != mxINT16_CLASS) { |
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reportError("Only 16 bit integers are supported for index"); |
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return; |
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}
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res = ps->res; |
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mxSetN(res, block_size); |
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mxSetM(res, 1); |
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err = mrses_compute(ps->mrses, block_size, mxGetData(index), mxGetData(res)); |
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if (err) { |
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reportError("Error executing compute, failed with code: %i", err); |
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return; |
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}
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#ifdef USE_UNDOCUMENTED
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plhs[0] = mxCreateSharedDataCopy(res); |
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#else /* USE_UNDOCUMENTED */ |
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plhs[0] = mxDuplicateArray(res); |
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#endif /* USE_UNDOCUMENTED */ |
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break; |
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case ACTION_ITERATE: |
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if (!pstate->initialized) { |
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reportError("We are not initialized yet, issue intialize call first"); |
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return; |
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}
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if (nrhs != 4) { |
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reportError("Iterate call expects following arguments: 'iterations', 'block_size'."); |
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return; |
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}
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iterations = (int)mxGetScalar(prhs[2]); |
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block_size = (int)mxGetScalar(prhs[3]); |
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if (block_size > pstate->max_block) { |
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reportError("The block is too big: maximum configured size is %i, but %i supplied", pstate->max_block, block_size); |
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return; |
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}
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if (nlhs == 1) { |
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idMatrix = mxCreateNumericMatrix(pstate->width, pstate->max_block, mxUINT16_CLASS, mxREAL); |
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mxSetN(idMatrix, block_size); |
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ires = mxGetData(idMatrix); |
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plhs[0] = idMatrix; |
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} else { |
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ires = NULL; |
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}
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err = mrses_iterate(ps->mrses, iterations, block_size, ires); |
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if (err) { |
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reportError("Error executing iterate, failed with code: %i", err); |
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return; |
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}
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break; |
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case ACTION_GET_HIST: |
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if (!pstate->initialized) { |
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reportError("We are not initialized yet, issue intialize call first"); |
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return; |
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}
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if ((nlhs != 1)&&(nrhs != 2)) { |
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reportError("GetHist call returns histogram vector and expects no arguments."); |
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return; |
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}
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res = ps->hist; |
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err = mrses_get_results(ps->mrses, mxGetData(res)); |
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if (err) { |
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reportError("Error executing iterate, failed with code: %i", err); |
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return; |
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}
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plhs[0] = mxDuplicateArray(res); |
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break; |
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default: |
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reportError("Unknown request %i", action); |
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}
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}
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