图像数据写入到文件

本文主要对图像的data 数据写入到文件（包括文本格式，和二进制文件）

//首先在桌面建立一个CR_Result1文件夹static char* dumpRoot = "C:\\Users\\seven\\Desktop\\CR_Result1\\";static char file2open[1024];//保存为二进制的文件//filename 保存文件的名字// buf 要保存的数据// size 要保存文件的大小int dump_temp(char* filename, char* buf, long long size){    FILE* file;    sprintf(file2open, "%s%s", dumpRoot, filename);    file = fopen(file2open, "wb");    if(file == NULL){        LOGE("can't open file: %s\n", file2open);        return -1;    }    fwrite(buf, 1, (size_t)size, file);    fclose(file);    return 0;}// 保存float 类型的图片数据// filename 如1.txt// buf 数据指针// mWidth 数据宽// mHeight 数据高int DumpFloat(char * filename, char * buf, int mWidth, int mHeight){    FILE* file;    int w, h;    float * temp = (float *)buf;    sprintf(file2open, "%s%s", dumpRoot, filename);    file = fopen(file2open, "w+");    //fwrite(temp, mWidth * mHeight * sizeof(float), 1, file);    for(h = 0; h < mHeight; h ++)    {        for(w = 0; w < mWidth - 1; w ++)        {            fprintf_s(file, "%f,", temp[h * mWidth + w]);        }        fprintf_s(file, "%f\n", temp[h * mWidth + w]);    }    fclose(file);    return 0;}// 保存unsigned char 类型数据 // 参数上同int DumpChar(char * filename, char * buf, int mWidth, int mHeight){    FILE* file;    int w, h;    unsigned char * temp = (unsigned char *)buf;    sprintf(file2open, "%s%s", dumpRoot, filename);    file = fopen(file2open, "w+");    for(h = 0; h < mHeight; h ++)    {        for(w = 0; w < mWidth - 1; w ++)        {            fprintf_s(file, "%u,", temp[h * mWidth + w]);        }        fprintf_s(file, "%u\n", temp[h * mWidth + w]);    }    fclose(file);    return 0;}int DumpInt(char * filename, char * buf, int mWidth, int mHeight){    FILE* file;    int w, h;    int * temp = (int *)buf;    sprintf(file2open, "%s%s", dumpRoot, filename);    file = fopen(file2open, "w+");    for(h = 0; h < mHeight; h ++)    {        for(w = 0; w < mWidth - 1; w ++)        {            fprintf_s(file, "%d,", temp[h * mWidth + w]);        }        fprintf_s(file, "%d\n", temp[h * mWidth + w]);    }    fclose(file);    return 0;}//文件名格式为xxx{W=4}{H=4}// 将文件读到内存float * ReadFromFileFloat(char * fileName){    char * prt;    char * prtTemp;    int width = 0;    int height = 0;    FILE * fp;    float * tempFloatPrt = NULL;    char * tempCharPrt = NULL;    int lengthChar = 0;    int ret = 0;    int i, j;    char fName[1024];    int fNameLength = strlen(fileName);    memcpy(fName, fileName, fNameLength);    fName[fNameLength] = '\0';    prt = fName;    prt = strstr(prt, "{W=");    prt = prt + strlen("{W=");    prtTemp = strstr(prt, "}");    * prtTemp = '\0';    sscanf(prt, "%d", &width);    * prtTemp = '}';    prt = fName;    prt = strstr(prt, "{H=");    prt = prt + strlen("{H=");    prtTemp = strstr(prt, "}");    * prtTemp = '\0';    sscanf(prt, "%d", &height);    * prtTemp = '}';    fp = fopen(fileName, "rb");    if(NULL == fp)    {        printf("fopen err \n");    }    fseek(fp, 0L, SEEK_END);    lengthChar = ftell(fp);    fseek(fp, 0L, SEEK_SET);    tempCharPrt = (char *)calloc(lengthChar, sizeof(char));    ret = fread(tempCharPrt, lengthChar, 1, fp);    if(1 != ret){ printf("fread err \n");}    fclose(fp);    tempFloatPrt = (float *)calloc(width * height, sizeof(float));    prt = tempCharPrt;    prtTemp = tempCharPrt;    for(i = 0; i < height; i ++)    {        for(j = 0; j < width - 1; j ++)        {            prtTemp = strstr(prt, ",");            *prtTemp = '\0';            sscanf(prt, "%f", &tempFloatPrt[i * width + j]);            prt = prtTemp + 1;        }        prtTemp = strstr(prt, "\n");        *prtTemp = '\0';        sscanf(prt, "%f", &tempFloatPrt[i * width + j]);        if(i != (height - 1))        {            prt = prtTemp + 1;        }    }    free(tempCharPrt);    return tempFloatPrt;}//将文件数据读到内存#define OS_Android 0#define OS_Windows 1#define OS_XXX OS_Windowsint readData(const char *filename, char ** sources, int * fileLengths){    int fileLength;    int ret;    FILE *file = NULL;#if OS_XXX == OS_Android    file = fopen(filename, "rb");#endif#if OS_XXX == OS_Windows    fopen_s(&file, filename, "rb");#endif    if (file == NULL)        return -4;    fseek(file, 0, SEEK_END);    fileLength = ftell(file);    *fileLengths = fileLength;    *sources = (char*)malloc(fileLength + 1);    rewind(file);    ret = fread(*sources, fileLength, 1, file);    (*sources)[fileLength] = '\0';    if (ret == 0)        return -5;    fclose(file);    return 0;}