cleanup
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tTh
parent
b367f42b9e
commit
8d36957956
68
Lib/bmp.c
68
Lib/bmp.c
@ -19,15 +19,13 @@
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#include "bmp.h" /* maybe I can hardcoded bmp.h here ? */
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/*::------------------------------------------------------------------::*/
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static void
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fatal_error(char *txt)
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static void fatal_error(char *txt)
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{
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fprintf(stderr, "BMP: Fatal error: %s\n", txt);
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exit(10);
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}
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/*::------------------------------------------------------------------::*/
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int
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Image_BMP_infos(char *nom, int *pw, int *ph, int *pt, int verb)
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int Image_BMP_infos(char *nom, int *pw, int *ph, int *pt, int verb)
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{
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FILE *fp;
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BMPHEAD head;
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@ -35,17 +33,20 @@ int foo;
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if (verb) printf("BMP_Infos : '%s'\n", nom);
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if ((fp=fopen(nom, "r")) == NULL)
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{
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if ((fp=fopen(nom, "r")) == NULL) {
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fprintf(stderr, "BMP_Infos: can't open %s\n", nom);
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return FILE_NOT_FOUND;
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}
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foo = fread(&head, 1, sizeof(head), fp);
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if (sizeof(head) != foo) {
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fprintf(stderr, "%s: err read header of %s\n", __func__, nom);
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fclose(fp);
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return UNKNOW_ERROR;
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}
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fclose(fp);
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if (verb)
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{
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if (verb) {
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printf("signature %c%c filesize %8ld\n",
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head.id[0], head.id[1], head.filesize);
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printf("headerSize %8ld infoSize %8ld\n",
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@ -54,7 +55,7 @@ if (verb)
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head.width, head.height, head.bits);
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printf("colors: used %ld important %ld\n",
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head.clrused, head.clrimportant);
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printf("taille structure header %d\n", sizeof(BMPHEAD));
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printf("taille structure header %ld\n", sizeof(BMPHEAD));
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}
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/*
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* now, return some usefull informations.
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@ -70,28 +71,32 @@ return 0;
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*/
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#define PIX2BYTE(n) ((n+7)/8)
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Image_Desc *
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Image_BMP_alloc_load(char *nom, int reserved)
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Image_Desc * Image_BMP_alloc_load(char *nom, int reserved)
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{
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(void)reserved; /* WARNING KILLER */
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FILE *fp;
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BMPHEAD head;
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int ligne, foo, larg, col, ligne2;
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Image_Desc *image;
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uint8_t *buffer;
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if ((fp=fopen(nom, "r")) == NULL)
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{
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if ((fp=fopen(nom, "r")) == NULL) {
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fprintf(stderr, "can't open %s\n", nom);
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return NULL;
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}
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foo = fread(&head, 1, sizeof(head), fp);
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if (sizeof(head) != foo) {
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fprintf(stderr, "%s: err read header of %s\n", __func__, nom);
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fclose(fp);
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return NULL;
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}
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#if DEBUG_LEVEL
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fprintf(stderr, "BMP: on a lu %d octets pour le header.\n", foo);
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#endif
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if ( head.id[0] != 'B' || head.id[1] != 'M' )
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{
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if ( head.id[0] != 'B' || head.id[1] != 'M' ) {
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fprintf(stderr, "BMP_Alloc_Load: BAD MAGIC %s\n", nom);
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return NULL;
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}
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@ -103,15 +108,13 @@ fprintf(stderr, "BMP_Alloc_Load: image depth = %d\n", head.bits);
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/*
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* first step: allocating the memory.
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*/
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switch (head.bits)
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{
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switch (head.bits) {
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case 1: case 4: case 8:
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fprintf(stderr, "bit depth %d not supported\n", head.bits);
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return NULL;
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break;
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case 24:
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if ( (image=Image_alloc(head.width, head.height, 3))==NULL)
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fatal_error("no memory for picture in 'alloc_load'\n");
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@ -119,7 +122,6 @@ switch (head.bits)
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fatal_error("no memory for buffer in 'alloc_load'\n");
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larg = head.width * 3;
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break;
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default:
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@ -132,8 +134,7 @@ switch (head.bits)
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/*
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* round up to an even dword boundary (?)
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*/
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if (larg & 0x00000003)
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{
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if (larg & 0x00000003) {
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larg |= 0x00000003;
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larg++;
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}
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@ -143,17 +144,14 @@ if (larg & 0x00000003)
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*
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* (no default case, filtered in first step)
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*/
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switch (head.bits)
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{
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switch (head.bits) {
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case 24:
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for (ligne=0; ligne<head.height; ligne++)
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{
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for (ligne=0; ligne<head.height; ligne++) {
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foo=fread(buffer, 1, larg, fp);
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/* printf("ligne %5d lu %d\n", ligne, foo); */
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ligne2 = head.height - ligne - 1;
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for (col=0; col<head.width; col++)
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{
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for (col=0; col<head.width; col++) {
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(image->Bpix[ligne2])[col] = buffer[ col*3 ];
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(image->Gpix[ligne2])[col] = buffer[ (col*3) + 1 ];
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(image->Rpix[ligne2])[col] = buffer[ (col*3) + 2 ];
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@ -172,9 +170,9 @@ return image;
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*
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* et cette fois-ci, on va faire gaffe au boutisme :)
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*/
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int
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Image_BMP_save_24(char *filename, Image_Desc *img, int flag)
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int Image_BMP_save_24(char *filename, Image_Desc *img, int flag)
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{
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(void)flag; /* WARNING KILLER */
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FILE *fp;
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long grand;
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short court;
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@ -187,8 +185,7 @@ fprintf(stderr, "%s : writing %p to %s, flag=%d\n", __func__,
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img, filename, flag);
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#endif
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if ((fp=fopen(filename, "w")) == NULL)
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{
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if ((fp=fopen(filename, "w")) == NULL) {
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fprintf(stderr, "can't open %s for writing\n", filename);
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return FILE_CREATE_ERR;
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}
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@ -206,8 +203,7 @@ if (bytes & 0x3)
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bytes++;
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}
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*/
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switch (bytes & 0x3)
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{
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switch (bytes & 0x3) {
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case 0: /* OK */ break;
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case 1: bytes+=3; break;
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case 2: bytes+=2; break;
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@ -261,14 +257,12 @@ fflush(fp);
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if ((buffer=(uint8_t *)malloc(sizeof(uint8_t)*4*img->width)) == NULL)
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fatal_error("no memory buffer for BMP24 save operation");
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for (line=img->height-1; line>=0; line--)
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{
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for (line=img->height-1; line>=0; line--) {
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ptr = buffer;
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Rptr = img->Rpix[line];
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Gptr = img->Gpix[line];
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Bptr = img->Bpix[line];
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for (foo=0; foo<img->width; foo++)
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{
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for (foo=0; foo<img->width; foo++) {
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*ptr++ = Bptr[foo];
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*ptr++ = Gptr[foo];
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*ptr++ = Rptr[foo];
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