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Praktikum matrix.h matrix.c

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This commit is contained in:
Kristin 2025-11-13 16:39:38 +01:00
parent 55fe58d69a
commit eba831b446
3 changed files with 146 additions and 137 deletions
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59
imageInputTests.c
View File

@ -1,29 +1,28 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "unity.h"
#include "imageInput.h"
#include "unity.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void prepareImageFile(const char *path, unsigned short int width, unsigned short int height, unsigned int short numberOfImages, unsigned char label)
{
static void prepareImageFile(const char *path, unsigned short int width,
unsigned short int height,
unsigned int short numberOfImages,
unsigned char label) {
FILE *file = fopen(path, "wb");
if(file != NULL)
{
if (file != NULL) {
const char *fileTag = "__info2_image_file_format__";
GrayScalePixelType *zeroBuffer = (GrayScalePixelType *)calloc(numberOfImages * width * height, sizeof(GrayScalePixelType));
GrayScalePixelType *zeroBuffer = (GrayScalePixelType *)calloc(
numberOfImages * width * height, sizeof(GrayScalePixelType));
if(zeroBuffer != NULL)
{
if (zeroBuffer != NULL) {
fwrite(fileTag, sizeof(fileTag[0]), strlen(fileTag), file);
fwrite(&numberOfImages, sizeof(numberOfImages), 1, file);
fwrite(&width, sizeof(width), 1, file);
fwrite(&height, sizeof(height), 1, file);
for(int i = 0; i < numberOfImages; i++)
{
for (int i = 0; i < numberOfImages; i++) {
fwrite(zeroBuffer, sizeof(GrayScalePixelType), width * height, file);
fwrite(&label, sizeof(unsigned char), 1, file);
}
@ -35,9 +34,7 @@ static void prepareImageFile(const char *path, unsigned short int width, unsigne
}
}
void test_readImagesReturnsCorrectNumberOfImages(void)
{
void test_readImagesReturnsCorrectNumberOfImages(void) {
GrayScaleImageSeries *series = NULL;
const unsigned short expectedNumberOfImages = 2;
const char *path = "testFile.info2";
@ -49,12 +46,11 @@ void test_readImagesReturnsCorrectNumberOfImages(void)
remove(path);
}
void test_readImagesReturnsCorrectImageWidth(void)
{
void test_readImagesReturnsCorrectImageWidth(void) {
GrayScaleImageSeries *series = NULL;
const unsigned short expectedWidth = 10;
const char *path = "testFile.info2";
prepareImageFile(path, 8, expectedWidth, 2, 1);
prepareImageFile(path, expectedWidth, 8, 2, 1);
series = readImages(path);
TEST_ASSERT_NOT_NULL(series);
TEST_ASSERT_NOT_NULL(series->images);
@ -65,12 +61,11 @@ void test_readImagesReturnsCorrectImageWidth(void)
remove(path);
}
void test_readImagesReturnsCorrectImageHeight(void)
{
void test_readImagesReturnsCorrectImageHeight(void) {
GrayScaleImageSeries *series = NULL;
const unsigned short expectedHeight = 10;
const char *path = "testFile.info2";
prepareImageFile(path, expectedHeight, 8, 2, 1);
prepareImageFile(path, 8, expectedHeight, 2, 1);
series = readImages(path);
TEST_ASSERT_NOT_NULL(series);
TEST_ASSERT_NOT_NULL(series->images);
@ -81,8 +76,7 @@ void test_readImagesReturnsCorrectImageHeight(void)
remove(path);
}
void test_readImagesReturnsCorrectLabels(void)
{
void test_readImagesReturnsCorrectLabels(void) {
const unsigned char expectedLabel = 15;
GrayScaleImageSeries *series = NULL;
@ -99,19 +93,16 @@ void test_readImagesReturnsCorrectLabels(void)
remove(path);
}
void test_readImagesReturnsNullOnNotExistingPath(void)
{
void test_readImagesReturnsNullOnNotExistingPath(void) {
const char *path = "testFile.txt";
remove(path);
TEST_ASSERT_NULL(readImages(path));
}
void test_readImagesFailsOnWrongFileTag(void)
{
void test_readImagesFailsOnWrongFileTag(void) {
const char *path = "testFile.info2";
FILE *file = fopen(path, "w");
if(file != NULL)
{
if (file != NULL) {
fprintf(file, "some_tag ");
fclose(file);
TEST_ASSERT_NULL(readImages(path));
@ -127,11 +118,11 @@ void tearDown(void) {
// Hier kann Bereinigungsarbeit nach jedem Test durchgeführt werden
}
int main()
{
int main() {
UNITY_BEGIN();
printf("\n============================\nImage input tests\n============================\n");
printf("\n============================\nImage input "
"tests\n============================\n");
RUN_TEST(test_readImagesReturnsCorrectNumberOfImages);
RUN_TEST(test_readImagesReturnsCorrectImageWidth);
RUN_TEST(test_readImagesReturnsCorrectImageHeight);

54
matrix.c
View File

@ -1,35 +1,47 @@
#include "matrix.h"
#include <stdlib.h>
#include <string.h>
#include "matrix.h"
// TODO Matrix-Funktionen implementieren
Matrix createMatrix(unsigned int rows, unsigned int cols)
{
/*typedef struct {
unsigned int rows;
unsigned int cols;
MatrixType *data; //Zeiger auf Speicherbereich Reihen*Spalten
} Matrix;*/
Matrix createMatrix(unsigned int rows, unsigned int cols) {
MatrixType *data =
malloc(rows * cols * sizeof(MatrixType)); // Speicher reservieren, malloc
// liefert Zeiger auf Speicher
Matrix newMatrix = {rows, cols, data}; // neue Matric nach struct
return newMatrix;
}
void clearMatrix(Matrix *matrix) {
matrix->data = UNDEFINED_MATRIX_VALUE;
matrix->rows = UNDEFINED_MATRIX_VALUE;
matrix->cols = UNDEFINED_MATRIX_VALUE;
free((*matrix).data); //Speicher freigeben
}
void clearMatrix(Matrix *matrix)
{
void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx,
unsigned int colIdx) {
float *rowPtr[matrix->rows] = (*matrix).data
}
void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
{
MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx,
unsigned int colIdx) {}
Matrix add(const Matrix matrix1, const Matrix matrix2) {
// broadcasting
}
MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
{
}
Matrix add(const Matrix matrix1, const Matrix matrix2)
{
}
Matrix multiply(const Matrix matrix1, const Matrix matrix2)
{
}
Matrix multiply(const Matrix matrix1, const Matrix matrix2) {}

6
matrix.h
View File

@ -7,7 +7,13 @@ typedef float MatrixType;
// TODO Matrixtyp definieren
typedef struct {
unsigned int rows;
unsigned int cols;
MatrixType *data; //Zeiger auf Speicherbereich Reihen*Spalten
} Matrix;
Matrix createMatrix(unsigned int rows, unsigned int cols);
void clearMatrix(Matrix *matrix);