forked from tTh/FloatImg
350 lines
7.8 KiB
C
350 lines
7.8 KiB
C
/*
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* fimg-file.c
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*
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include "../floatimg.h"
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extern int verbosity; /* must be declared around main() */
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/* ---------------------------------------------------------------- */
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int fimg_fileinfos(char *fname, int *datas)
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{
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FILE *fp;
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FimgFileHead filehead;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, fname, datas);
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#endif
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fp = fopen(fname, "r");
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if (NULL==fp) {
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perror(fname);
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return -1;
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}
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if (1 != fread(&filehead, sizeof(FimgFileHead), 1, fp)) {
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fprintf(stderr, "%s: %s bad read\n", __func__, fname);
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fclose(fp);
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return -2;
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}
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fclose(fp);
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#if DEBUG_LEVEL
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fprintf(stderr, " magic [%s]\n", filehead.magic);
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#endif
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if (memcmp(filehead.magic, "FIMG", 4)) {
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fprintf(stderr, "'%s' is not a fimg file.\n", fname);
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return -3;
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}
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/* XXX preparer la gestion des metadata */
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if ('a' == filehead.magic[4]) {
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fprintf(stderr,"\n\t****** %s have metadata\n\n", fname);
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}
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datas[0] = filehead.w;
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datas[1] = filehead.h;
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datas[2] = filehead.t;
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return 0;
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}
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/* ---------------------------------------------------------------- */
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/*
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* new avril 2022 : trying to save metadatas...
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*/
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int fimg_dumpmd_to_file(FloatImg *fimg, char *fname, \
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FimgMetaData *pmd, int notused)
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{
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FILE *fp;
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int foo, nbre;
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FimgFileHead filehead;
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FimgMetaData fakemd;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p '%s' %p %d )\n", __func__, fimg,
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fname, pmd, notused);
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#endif
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if (notused) {
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fprintf(stderr, "%s: notused must be 0, was %d\n", \
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__func__, notused);
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}
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if (FIMG_TYPE_RGB != fimg->type) {
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fprintf(stderr, "%s : bad type %d\n", __func__, fimg->type);
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return -8;
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}
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/* OK, we have to make a fake metadata chunk, if the caller
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* don't have one. Ugly, and nice */
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if (NULL == pmd) {
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fprintf(stderr, ">>> %s making faked metadata\n", __func__);
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foo = fimg_default_metadata(&fakemd, 3);
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fprintf(stderr, "fakemd is at %p\n", &fakemd);
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pmd = &fakemd;
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}
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else {
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/* OK, get some funky metadatas */
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// fprintf(stderr, "%s get metadatas\n", __func__);
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fprintf(stderr, "acqu fval=%f count=%d\n", pmd->fval, pmd->count);
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}
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fp = fopen(fname, "w");
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if (NULL==fp) {
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perror(fname);
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return -1;
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}
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memset(&filehead, 0, sizeof(filehead));
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memcpy(filehead.magic, "FIMG", 4);
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filehead.w = fimg->width; filehead.h = fimg->height;
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filehead.t = fimg->type;
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/* XXX metadata */
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if (NULL != pmd) {
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// fprintf(stderr, "ok, %s give an 'a' flag\n", __func__);
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filehead.magic[4] = 'a';
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}
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foo = fwrite(&filehead, sizeof(FimgFileHead), 1, fp);
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if (1 != foo) {
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perror(fname);
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fclose(fp);
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/* may be here, we can remove the broken file ? */
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return -2;
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}
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/* we have metadata, put them on tape */
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if (NULL != pmd) {
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// fprintf(stderr, ">>> %s write metadata %p\n", __func__, pmd);
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foo = fwrite(pmd, sizeof(FimgMetaData), 1, fp);
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if (1 != foo) {
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perror(fname);
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fclose(fp);
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/* may be here, we can remove the broken file ? */
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return -2;
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}
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}
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nbre = fimg->width * fimg->height; /* pixels per frame */
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foo = fwrite(fimg->R, sizeof(float), nbre, fp);
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if (nbre != foo) {
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perror(fname); fclose(fp); return -3;
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}
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foo = fwrite(fimg->G, sizeof(float), nbre, fp);
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if (nbre != foo) {
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perror(fname); fclose(fp); return -3;
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}
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foo = fwrite(fimg->B, sizeof(float), nbre, fp);
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if (nbre != foo) {
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perror(fname); fclose(fp); return -3;
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}
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fclose(fp);
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return 0;
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}
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/* ---------------------------------------------------------------- */
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/*
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* /!\ this func work ONLY on RGB image
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*/
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int fimg_dump_to_file(FloatImg *fimg, char *fname, int notused)
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{
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FILE *fp;
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int foo, nbre;
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FimgFileHead filehead;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %-25s ( %p '%s' %d )\n", __func__, fimg,
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fname, notused);
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#endif
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if (notused) {
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fprintf(stderr, "%s: notused must be 0, was %d\n", \
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__func__, notused);
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}
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if (FIMG_TYPE_RGB != fimg->type) {
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fprintf(stderr, "%s : bad type %d\n", __func__, fimg->type);
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return -8;
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}
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fp = fopen(fname, "w");
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if (NULL==fp) {
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perror(fname);
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return -1;
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}
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memset(&filehead, 0, sizeof(filehead));
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memcpy(filehead.magic, "FIMG", 4);
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filehead.w = fimg->width; filehead.h = fimg->height;
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filehead.t = fimg->type;
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foo = fwrite(&filehead, sizeof(FimgFileHead), 1, fp);
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if (1 != foo) {
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perror(fname);
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fclose(fp);
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return -2;
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}
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nbre = fimg->width * fimg->height; /* pixels per frame */
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foo = fwrite(fimg->R, sizeof(float), nbre, fp);
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if (nbre != foo) {
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perror(fname); fclose(fp); return -3;
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}
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foo = fwrite(fimg->G, sizeof(float), nbre, fp);
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if (nbre != foo) {
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perror(fname); fclose(fp); return -3;
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}
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foo = fwrite(fimg->B, sizeof(float), nbre, fp);
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if (nbre != foo) {
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perror(fname); fclose(fp); return -3;
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}
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fclose(fp);
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return 0;
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}
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/* ---------------------------------------------------------------- */
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/*
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* load a dump in a pre-allocated FloatImg
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*/
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int fimg_load_from_dump(char *fname, FloatImg *where)
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{
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FILE *fp;
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int foo, nbre;
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FimgFileHead filehead;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, fname, where);
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#endif
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if (NULL==(fp = fopen(fname, "r"))) {
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perror(fname);
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return -15;
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}
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foo = fread(&filehead, sizeof(FimgFileHead), 1, fp);
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if (1 != foo) {
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fprintf(stderr, "%s: short read on '%s'\n", __func__, fname);
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fclose(fp);
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return -16;
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}
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/* check compatibility */
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if ( (filehead.w != where->width) ||
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(filehead.h != where->height) ||
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(filehead.t != where->type) ) {
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fprintf(stderr, "%s: file '%s' incompatible\n",
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__func__, fname);
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fclose(fp);
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return -17;
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}
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/* XXX preparer la gestion des metadata */
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if ('a' == filehead.magic[4]) {
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if (verbosity > 1) fprintf(stderr,"****** %s have metadata\n", fname);
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foo = fseek(fp, (long)sizeof(FimgMetaData), SEEK_CUR);
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if (foo) {
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fprintf(stderr, "%s: seek error\n", __func__);
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perror(fname);
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exit(1);
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}
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}
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nbre = filehead.w * filehead.h; /* number of pixels per frame */
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foo = fread(where->R, sizeof(float), nbre, fp);
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if (nbre != foo) {
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fprintf(stderr, "%s: err read '%s' : %d\n", __func__, fname, foo);
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fclose(fp); return -18;
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}
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foo = fread(where->G, sizeof(float), nbre, fp);
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if (nbre != foo) {
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fprintf(stderr, "%s: err read '%s' : %d\n", __func__, fname, foo);
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fclose(fp); return -18;
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}
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foo = fread(where->B, sizeof(float), nbre, fp);
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if (nbre != foo) {
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fprintf(stderr, "%s: err read '%s' : %d\n", __func__, fname, foo);
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fclose(fp); return -18;
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}
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fclose(fp);
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return 0;
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}
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/* ---------------------------------------------------------------- */
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int fimg_create_from_dump(char *fname, FloatImg *head)
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{
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FILE *fp;
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int foo, size;
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long nbread;
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FimgFileHead filehead;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %-25s ( '%s' %p )\n", __func__, fname, head);
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#endif
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/*
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* may be we can crash coredump here if the head
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* descriptor from caller is not blank ?
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*/
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fp = fopen(fname, "r");
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if (NULL==fp) {
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perror(fname);
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return -15;
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}
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foo = fread(&filehead, sizeof(FimgFileHead), 1, fp);
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if (1 != foo) {
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fprintf(stderr, "%s: short read on '%s'\n", __func__, fname);
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fclose(fp);
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return -16;
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}
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#if DEBUG_LEVEL
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fprintf(stderr, "%s : got [ %dx%d %s ] from '%s'\n", __func__,
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filehead.w, filehead.h, fimg_str_type(filehead.t),
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fname);
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#endif
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foo = fimg_create(head, filehead.w, filehead.h, filehead.t);
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if (foo) {
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fprintf(stderr, "%s : create -> %d\n", __func__, foo);
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return foo;
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}
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/* bugfix Sat 14 May 2022 07:02:53 PM CEST */
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/*
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* Oh boy, we have to skeep the metadata chunck
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*/
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if ('a' == filehead.magic[4]) {
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if (verbosity > 1)
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{ fprintf(stderr, "%s: %s has metadata\n", __func__, fname); }
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foo = fseek(fp, (long)sizeof(FimgMetaData), SEEK_CUR);
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if (foo) {
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fprintf(stderr, "%s : shit hit the fan\n", __func__);
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abort();
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}
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}
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size = filehead.w * filehead.h;
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nbread = 0;
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nbread += fread(head->R, sizeof(float), size, fp);
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nbread += fread(head->G, sizeof(float), size, fp);
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nbread += fread(head->B, sizeof(float), size, fp);
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fclose(fp);
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return 0;
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}
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