imgblock_io.c

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/*
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 *    to Remix - to make derivative works
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#include <jwsc/config.h>

#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <assert.h>
#include <string.h>

#include "jwsc/base/error.h"
#include "jwsc/image/image.h"
#include "jwsc/image/image_io.h"
#include "jwsc/image/jiff.h"
#include "jwsc/imgblock/imgblock.h"
#include "jwsc/imgblock/imgblock_io.h"


Error* read_imgblock_numbered_f
(
    Imgblock_f** imgblk_out, 
    const char*  fname_fmt,
    uint32_t     num_imgs
)
{
    char fname[256] = {0};

    uint32_t num_rows, num_cols;
    uint32_t i;

    Image_f* img = NULL;
    Error*   e;

    num_rows = 0;
    num_cols = 0;

    for (i = 0; i < num_imgs; i++)
    {
        snprintf(fname, 255, fname_fmt, i+1);

        if ((e = read_image_f(&img, fname)) != NULL)
        {
            free_imgblock_f(*imgblk_out); *imgblk_out = NULL;
            return e;
        }

        if (num_rows == 0 && num_cols == 0)
        {
            num_rows = img->num_rows;
            num_cols = img->num_cols;
            create_imgblock_f(imgblk_out, num_imgs, num_rows, num_cols);
        }

        assert(copy_image_into_imgblock_f(imgblk_out, *imgblk_out, img, 
                    IMGBLOCK_IMG_IMAGE, i) == NULL);
    }

    free_image_f(img);

    return NULL;
}

Error* read_imgblock_named_f
(
    Imgblock_f**   imgblk_out, 
    const char**   fnames,
    uint32_t       num_imgs
)
{
    uint32_t num_rows, num_cols;
    uint32_t i;

    Image_f* img = NULL;
    Error*   e;

    num_rows = 0;
    num_cols = 0;

    for (i = 0; i < num_imgs; i++)
    {
        if ((e = read_image_f(&img, fnames[ i ])) != NULL)
        {
            free_imgblock_f(*imgblk_out); *imgblk_out = NULL;
            return e;
        }

        if (num_rows == 0 && num_cols == 0)
        {
            num_rows = img->num_rows;
            num_cols = img->num_cols;
            create_imgblock_f(imgblk_out, num_imgs, num_rows, num_cols);
        }

        assert(copy_image_into_imgblock_f(imgblk_out, *imgblk_out, img, 
                    IMGBLOCK_IMG_IMAGE, i) == NULL);
    }

    free_image_f(img);

    return NULL;
}

Error* write_imgblock_numbered_f
(
    const Imgblock_f* imgblk,
    const char*       fname_fmt
)
{
    char fname[256] = {0};

    uint32_t i;

    Image_f* img = NULL;
    Error*   e;

    for (i = 0; i < imgblk->num_imgs; i++)
    {
        assert(copy_image_from_imgblock_f(&img, imgblk, IMGBLOCK_IMG_IMAGE, i) 
                == NULL);

        snprintf(fname, 255, fname_fmt, i+1);

        if ((e = write_image_f(img, fname)) != NULL)
        {
            free_image_f(img);
            return e;
        }
    }

    free_image_f(img);

    return NULL;
}

Error* write_imgblock_named_f
(
    const Imgblock_f* imgblk,
    const char**      fnames
)
{
    uint32_t i;

    Image_f* img = NULL;
    Error*   e;

    for (i = 0; i < imgblk->num_imgs; i++)
    {
        assert(copy_image_from_imgblock_f(&img, imgblk, IMGBLOCK_IMG_IMAGE, i) 
                == NULL);

        if ((e = write_image_f(img, fnames[ i ])) != NULL)
        {
            free_image_f(img);
            return e;
        }
    }

    free_image_f(img);

    return NULL;
}

Error* write_imgblock_as_numbered_jiff_f
(
    const Imgblock_f*      imgblk,
    const char*            fname_fmt,
    const JIFF_attributes* attrs
)
{
    char fname[256] = {0};

    uint32_t i;

    Image_f* img = NULL;
    Error*   e;

    for (i = 0; i < imgblk->num_imgs; i++)
    {
        assert(copy_image_from_imgblock_f(&img, imgblk, IMGBLOCK_IMG_IMAGE, i) 
                == NULL);

        snprintf(fname, 255, fname_fmt, i+1);

        if ((e = write_image_as_jiff_f(img, fname, attrs)) != NULL)
        {
            free_image_f(img);
            return e;
        }
    }

    free_image_f(img);

    return NULL;
}

Error* write_imgblock_as_named_jiff_f
(
    const Imgblock_f*      imgblk,
    const char**           fnames,
    const JIFF_attributes* attrs
)
{
    uint32_t i;

    Image_f* img = NULL;
    Error*   e;

    for (i = 0; i < imgblk->num_imgs; i++)
    {
        assert(copy_image_from_imgblock_f(&img, imgblk, IMGBLOCK_IMG_IMAGE, i) 
                == NULL);

        if ((e = write_image_as_jiff_f(img, fnames[ i ], attrs)) != NULL)
        {
            free_image_f(img);
            return e;
        }
    }

    free_image_f(img);

    return NULL;
}