forked from tTh/FloatImg
adding some magic to the file format
This commit is contained in:
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b8d86da9a0
commit
ecf952d881
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@ -2,7 +2,7 @@
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* floatimg.h
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*/
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#define FIMG_VERSION 61
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#define FIMG_VERSION 62
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/*
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* in memory descriptor
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@ -23,9 +23,9 @@ typedef struct {
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* fimg file header
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*/
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typedef struct {
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// char magic[8];
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char magic[8];
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int w, h, t;
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} FimgFhead;
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} FimgFileHead;
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/*
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* core module
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@ -7,7 +7,7 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "string.h"
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#include <string.h>
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#include "../floatimg.h"
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@ -17,6 +17,7 @@ extern int verbosity; /* must be declared around main() */
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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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@ -27,29 +28,43 @@ if (NULL==fp) {
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perror(fname);
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return -1;
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}
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if (3 != fread(datas, sizeof(int), 3, fp)) {
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fprintf(stderr, "%s: %s short read\n", __func__, fname);
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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 (strncmp(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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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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int fimg_dump_to_file(FloatImg *head, char *fname, int notused)
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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, dims[3];
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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__, head,
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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 (3 != head->type) {
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fprintf(stderr, "%s : bat type %d\n", __func__, head->type);
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if (3 != fimg->type) {
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fprintf(stderr, "%s : bat type %d\n", __func__, fimg->type);
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return -8;
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}
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@ -59,21 +74,22 @@ if (NULL==fp) {
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return -1;
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}
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dims[0] = head->width; dims[1] = head->height;
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dims[2] = head->type;
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strcpy(filehead.magic, "FIMG");
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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(dims, sizeof(int), 3, fp);
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if (3 != foo) {
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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 = head->width*head->height*3;
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nbre = fimg->width*fimg->height*3;
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#if DEBUG_LEVEL
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fprintf(stderr, " %s : data at %p\n", __func__, head->R);
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fprintf(stderr, " %s : data at %p\n", __func__, fimg->R);
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#endif
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foo = fwrite(head->R, sizeof(float), nbre, fp);
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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);
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fclose(fp);
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@ -85,10 +101,12 @@ 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, dims[3];
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int foo;
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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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@ -100,24 +118,24 @@ if (NULL==fp) {
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exit(1);
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}
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foo = fread(dims, sizeof(int), 3, fp);
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if (3 != foo) {
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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\n", fname);
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fclose(fp);
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return -1;
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}
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#if DEBUG_LEVEL
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fprintf(stderr, "%s : got [ %d %d %d ] from '%s'\n", __func__,
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dims[0], dims[1], dims[2], fname);
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filehead.w, filehead.h, filehead.t, fname);
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#endif
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foo = fimg_create(head, dims[0], dims[1], dims[2]);
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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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foo = fread(head->R, sizeof(float), dims[0]*dims[1]*3, fp);
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foo = fread(head->R, sizeof(float), filehead.w*filehead.h*3, fp);
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fclose(fp);
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10
lib/t.c
10
lib/t.c
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@ -12,16 +12,20 @@ int main(int argc, char *argv[])
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{
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int foo;
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FloatImg fimg;
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int datas[3];
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verbosity = 1;
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foo = fimg_load_from_pnm("/tmp/00000.ppm", &fimg, 0);
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foo = fimg_create(&fimg, 640, 480, 3);
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printf("retour du truc %d\n", foo);
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printf("retour du truc ---> %d\n", foo);
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fimg_printhead(&fimg);
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fimg_save_as_pnm(&fimg, "foo.pnm", 0);
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// fimg_save_as_pnm(&fimg, "foo.pnm", 0);
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foo = fimg_dump_to_file(&fimg, "foo.fimg", 0);
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foo = fimg_fileinfos("foo.fimg", datas);
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return 0;
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}
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