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New implementation for writing mat files
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,278 @@ | ||
| /* | ||
| * This file is part of OpenModelica. | ||
| * | ||
| * Copyright (c) 1998-CurrentYear, Open Source Modelica Consortium (OSMC), | ||
| * c/o Linköpings universitet, Department of Computer and Information Science, | ||
| * SE-58183 Linköping, Sweden. | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * THIS PROGRAM IS PROVIDED UNDER THE TERMS OF GPL VERSION 3 LICENSE OR | ||
| * THIS OSMC PUBLIC LICENSE (OSMC-PL) VERSION 1.2. | ||
| * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES | ||
| * RECIPIENT'S ACCEPTANCE OF THE OSMC PUBLIC LICENSE OR THE GPL VERSION 3, | ||
| * ACCORDING TO RECIPIENTS CHOICE. | ||
| * | ||
| * The OpenModelica software and the Open Source Modelica | ||
| * Consortium (OSMC) Public License (OSMC-PL) are obtained | ||
| * from OSMC, either from the above address, | ||
| * from the URLs: http://www.ida.liu.se/projects/OpenModelica or | ||
| * http://www.openmodelica.org, and in the OpenModelica distribution. | ||
| * GNU version 3 is obtained from: http://www.gnu.org/copyleft/gpl.html. | ||
| * | ||
| * This program is distributed WITHOUT ANY WARRANTY; without | ||
| * even the implied warranty of MERCHANTABILITY or FITNESS | ||
| * FOR A PARTICULAR PURPOSE, EXCEPT AS EXPRESSLY SET FORTH | ||
| * IN THE BY RECIPIENT SELECTED SUBSIDIARY LICENSE CONDITIONS OF OSMC-PL. | ||
| * | ||
| * See the full OSMC Public License conditions for more details. | ||
| * | ||
| */ | ||
|
|
||
| #include "MatVer4.h" | ||
|
|
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| #include <stddef.h> | ||
| #include <stdint.h> | ||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
|
|
||
| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
|
|
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| const char isBigEndian() | ||
| { | ||
| union | ||
| { | ||
| uint32_t i32; | ||
| uint8_t i8[4]; | ||
| } test = { 0x01020304 }; | ||
| return (1 == test.i8[0]); | ||
| } | ||
|
|
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| int writeMatVer4Matrix_4(FILE* file, const char* name, size_t rows, size_t cols, const void* matrixData, MatVer4Type_t type) | ||
| { | ||
| struct MatVer4Header | ||
| { | ||
| unsigned int type; | ||
| unsigned int mrows; | ||
| unsigned int ncols; | ||
| unsigned int imagf; | ||
| unsigned int namelen; | ||
| } header; | ||
|
|
||
| size_t size; | ||
| switch (type) | ||
| { | ||
| case MatVer4Type_DOUBLE: | ||
| size = sizeof(double); | ||
| break; | ||
| case MatVer4Type_SINGLE: | ||
| size = sizeof(float); | ||
| break; | ||
| case MatVer4Type_INT32: | ||
| size = sizeof(int32_t); | ||
| break; | ||
| case MatVer4Type_CHAR: | ||
| size = sizeof(uint8_t); | ||
| break; | ||
| default: | ||
| return -1; | ||
| } | ||
|
|
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| header.type = (isBigEndian() ? 1000 : 0) + type; | ||
| header.mrows = (unsigned int) rows; | ||
| header.ncols = (unsigned int) cols; | ||
| header.imagf = 0; | ||
| header.namelen = (unsigned int) strlen(name) + 1; | ||
|
|
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| fwrite(&header, sizeof(MatVer4Header), 1, file); | ||
| fwrite(name, sizeof(char), header.namelen, file); | ||
| fwrite(matrixData, size, rows * cols, file); | ||
|
|
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| return 0; | ||
| } | ||
|
|
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| int appendMatVer4Matrix_4(FILE* file, long position, const char* name, size_t rows, size_t cols, const void* matrixData, MatVer4Type_t type) | ||
| { | ||
| struct MatVer4Header | ||
| { | ||
| unsigned int type; | ||
| unsigned int mrows; | ||
| unsigned int ncols; | ||
| unsigned int imagf; | ||
| unsigned int namelen; | ||
| } header; | ||
|
|
||
| size_t size; | ||
| switch (type) | ||
| { | ||
| case MatVer4Type_DOUBLE: | ||
| size = sizeof(double); | ||
| break; | ||
| case MatVer4Type_SINGLE: | ||
| size = sizeof(float); | ||
| break; | ||
| case MatVer4Type_INT32: | ||
| size = sizeof(int32_t); | ||
| break; | ||
| case MatVer4Type_CHAR: | ||
| size = sizeof(uint8_t); | ||
| break; | ||
| default: | ||
| return -1; | ||
| } | ||
|
|
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| long eof = ftell(file); | ||
| fseek(file, position, SEEK_SET); | ||
| fread(&header, sizeof(MatVer4Header), 1, file); | ||
| if (header.type != (isBigEndian() ? 1000 : 0) + type) | ||
| return -1; | ||
| if (header.mrows != rows) | ||
| return -1; | ||
| header.ncols += (unsigned int) cols; | ||
| if (header.imagf != 0) | ||
| return -1; | ||
| if (header.namelen != strlen(name) + 1) | ||
| return -1; | ||
|
|
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| fseek(file, position, SEEK_SET); | ||
| fwrite(&header, sizeof(MatVer4Header), 1, file); | ||
| fseek(file, eof, SEEK_SET); | ||
| fwrite(matrixData, size, rows * cols, file); | ||
| return 0; | ||
| } | ||
|
|
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| int writeMatVer4Header_4(FILE* file, long position, const char* name, size_t rows, size_t cols, MatVer4Type_t type) | ||
| { | ||
| struct MatVer4Header | ||
| { | ||
| unsigned int type; | ||
| unsigned int mrows; | ||
| unsigned int ncols; | ||
| unsigned int imagf; | ||
| unsigned int namelen; | ||
| } header; | ||
|
|
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| size_t size; | ||
| switch (type) | ||
| { | ||
| case MatVer4Type_DOUBLE: | ||
| size = sizeof(double); | ||
| break; | ||
| case MatVer4Type_SINGLE: | ||
| size = sizeof(float); | ||
| break; | ||
| case MatVer4Type_INT32: | ||
| size = sizeof(int32_t); | ||
| break; | ||
| case MatVer4Type_CHAR: | ||
| size = sizeof(uint8_t); | ||
| break; | ||
| default: | ||
| return -1; | ||
| } | ||
|
|
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| long eof = ftell(file); | ||
| fseek(file, position, SEEK_SET); | ||
| fread(&header, sizeof(MatVer4Header), 1, file); | ||
| if (header.type != (isBigEndian() ? 1000 : 0) + type) | ||
| return -1; | ||
| if (header.mrows != rows) | ||
| return -1; | ||
| header.ncols = (unsigned int) cols; | ||
| if (header.imagf != 0) | ||
| return -1; | ||
| if (header.namelen != strlen(name) + 1) | ||
| return -1; | ||
|
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| fseek(file, position, SEEK_SET); | ||
| fwrite(&header, sizeof(MatVer4Header), 1, file); | ||
| fseek(file, eof, SEEK_SET); | ||
| return 0; | ||
| } | ||
|
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| MatVer4Matrix* readMatVer4Matrix_4(FILE* file) | ||
| { | ||
| MatVer4Matrix *matrix = (MatVer4Matrix*) malloc(sizeof(MatVer4Matrix)); | ||
| if (!matrix) | ||
| return NULL; | ||
|
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| fread(&matrix->header, sizeof(MatVer4Header), 1, file); | ||
|
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| // skip name | ||
| fseek(file, matrix->header.namelen, SEEK_CUR); | ||
|
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| size_t size; | ||
| switch (matrix->header.type % 100) | ||
| { | ||
| case MatVer4Type_DOUBLE: | ||
| size = sizeof(double); | ||
| break; | ||
| case MatVer4Type_SINGLE: | ||
| size = sizeof(float); | ||
| break; | ||
| case MatVer4Type_INT32: | ||
| size = sizeof(int32_t); | ||
| break; | ||
| case MatVer4Type_CHAR: | ||
| size = sizeof(uint8_t); | ||
| break; | ||
| default: | ||
| free(matrix); | ||
| return NULL; | ||
| } | ||
|
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| matrix->data = malloc(matrix->header.mrows * matrix->header.ncols * size); | ||
| fread(matrix->data, size, matrix->header.mrows*matrix->header.ncols, file); | ||
|
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| return matrix; | ||
| } | ||
|
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| void freeMatVer4Matrix_4(MatVer4Matrix** matrix) | ||
| { | ||
| if (*matrix) | ||
| { | ||
| if ((*matrix)->data) | ||
| free((*matrix)->data); | ||
| free(*matrix); | ||
| *matrix = NULL; | ||
| } | ||
| } | ||
|
|
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| int skipMatVer4Matrix_4(FILE* file) | ||
| { | ||
| MatVer4Header header; | ||
| fread(&header, sizeof(MatVer4Header), 1, file); | ||
|
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| // skip name | ||
| fseek(file, header.namelen, SEEK_CUR); | ||
|
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| size_t size; | ||
| switch (header.type % 100) | ||
| { | ||
| case MatVer4Type_DOUBLE: | ||
| size = sizeof(double); | ||
| break; | ||
| case MatVer4Type_SINGLE: | ||
| size = sizeof(float); | ||
| break; | ||
| case MatVer4Type_INT32: | ||
| size = sizeof(int32_t); | ||
| break; | ||
| case MatVer4Type_CHAR: | ||
| size = sizeof(uint8_t); | ||
| break; | ||
| default: | ||
| return -1; | ||
| } | ||
|
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| // skip data | ||
| fseek(file, header.mrows*header.ncols*size, SEEK_CUR); | ||
| return 0; | ||
| } | ||
|
|
||
| #ifdef __cplusplus | ||
| } | ||
| #endif |
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