311 lines
6.3 KiB
Plaintext
311 lines
6.3 KiB
Plaintext
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/*
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** xpm-read.c for MinilibX in
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**
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** Made by Charlie Root
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** Login <ol@epitech.net>
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**
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** Started on Tue Dec 11 15:25:27 2001 olivier crouzet
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** Last update Sat Oct 1 14:40:55 2005 Olivier Crouzet
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*/
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#include "mlx_int.h"
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extern struct s_col_name mlx_col_name[];
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#define RETURN { if (colors) free(colors); if (tab) free(tab); \
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if (colors_direct) free(colors_direct); \
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if (img) {XDestroyImage(img->image); \
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XFreePixmap(xvar->display,img->pix);free(img);} \
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return ((void *)0);}
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char *mlx_int_get_line(char *ptr,int *pos,int size)
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{
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int pos2;
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int pos3;
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int pos4;
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if ((pos2 = mlx_int_str_str(ptr+*pos,"\"",size-*pos))==-1)
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return ((char *)0);
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if ((pos3 = mlx_int_str_str(ptr+*pos+pos2+1,"\"",size-*pos-pos2-1))==-1)
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return ((char *)0);
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*(ptr+*pos+pos2) = 0;
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*(ptr+*pos+pos2+1+pos3) = 0;
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pos4 = *pos+pos2+1;
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*pos += pos2+pos3+2;
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return (ptr+pos4);
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}
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char *mlx_int_static_line(char **xpm_data,int *pos,int size)
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{
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static char *copy = 0;
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static int len = 0;
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int len2;
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char *str;
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str = xpm_data[(*pos)++];
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if ((len2 = strlen(str))>len)
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{
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if (copy)
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free(copy);
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if (!(copy = malloc(len2+1)))
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return ((char *)0);
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len = len2;
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}
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/* strcpy(copy,str); */
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strlcpy(copy, str, len2+1);
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return (copy);
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}
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int mlx_int_get_col_name(char *str,int size)
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{
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int result;
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result = 0;
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while (size--)
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result = (result<<8)+*(str++);
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return (result);
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}
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int mlx_int_get_text_rgb(char *name)
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{
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int i;
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if (*name == '#')
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return (strtol(name+1,0,16));
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i = 0;
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while (mlx_col_name[i].name)
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{
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if (!strcasecmp(mlx_col_name[i].name, name))
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return (mlx_col_name[i].color);
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i ++;
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}
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return (0);
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}
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int mlx_int_xpm_set_pixel(t_img *img, char *data, int opp, int col, int x)
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{
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int dec;
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dec = opp;
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while (dec--)
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{
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if (img->image->byte_order)
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*(data+x*opp+dec) = col&0xFF;
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else
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*(data+x*opp+opp-dec-1) = col&0xFF;
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col >>= 8;
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}
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}
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void *mlx_int_parse_xpm(t_xvar *xvar,void *info,int info_size,char *(*f)())
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{
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int pos;
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char *line;
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char **tab;
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char *data;
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char *clip_data;
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int nc;
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int opp;
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int cpp;
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int col;
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int rgb_col;
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int col_name;
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int method;
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int x;
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int i;
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int j;
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t_img *img;
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t_xpm_col *colors;
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int *colors_direct;
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int width;
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int height;
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XImage *clip_img;
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XGCValues xgcv;
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Pixmap clip_pix;
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colors = 0;
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colors_direct = 0;
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img = 0;
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tab = 0;
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pos = 0;
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if (!(line = f(info,&pos,info_size)) ||
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!(tab = mlx_int_str_to_wordtab(line)) || !(width = atoi(tab[0])) ||
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!(height = atoi(tab[1])) || !(nc = atoi(tab[2])) ||
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!(cpp = atoi(tab[3])) )
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RETURN;
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free(tab);
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tab = 0;
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method = 0;
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if (cpp<=2)
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{
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method = 1;
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if (!(colors_direct = malloc((cpp==2?65536:256)*sizeof(int))))
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RETURN;
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}
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else
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if (!(colors = malloc(nc*sizeof(*colors))))
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RETURN;
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clip_data = 0;
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i = nc;
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while (i--)
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{
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if (!(line = f(info,&pos,info_size)) ||
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!(tab = mlx_int_str_to_wordtab(line+cpp)) )
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RETURN;
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j = 0;
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while (tab[j] && strcmp(tab[j++],"c"));
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if (!tab[j])
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RETURN;
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if ((rgb_col = mlx_int_get_text_rgb(tab[j]))==-1)
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{
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if (!(clip_data = malloc(4*width*height)) || /* ok, nice size .. */
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!(clip_img = XCreateImage(xvar->display, xvar->visual,
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1, XYPixmap, 0, clip_data,
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width, height, 8, (width+7)/8)) )
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RETURN;
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memset(clip_data, 0xFF, 4*width*height);
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}
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if (method)
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colors_direct[mlx_int_get_col_name(line,cpp)] =
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rgb_col>=0?mlx_get_color_value(xvar, rgb_col):rgb_col;
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else
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{
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colors[i].name = mlx_int_get_col_name(line,cpp);
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colors[i].col = rgb_col>=0?mlx_get_color_value(xvar,rgb_col):rgb_col;
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}
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free(tab);
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}
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if (!(img = mlx_new_image(xvar,width,height)))
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RETURN;
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opp = img->bpp/8;
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i = height;
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data = img->data;
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while (i--)
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{
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if (!(line = f(info,&pos,info_size)))
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RETURN;
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x = 0;
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while (x<width)
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{
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col = 0;
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col_name = mlx_int_get_col_name(line+cpp*x,cpp);
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if (method)
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col = colors_direct[col_name];
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else
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{
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j = nc;
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while (j--)
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if (colors[j].name==col_name)
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{
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col = colors[j].col;
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j = 0;
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}
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}
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if (col==-1)
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XPutPixel(clip_img, x, height-1-i, 0);
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else
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mlx_int_xpm_set_pixel(img, data, opp, col, x);
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x ++;
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}
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data += img->size_line;
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}
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if (clip_data)
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{
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if (!(clip_pix = XCreatePixmap(xvar->display, xvar->root,
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width, height, 1)) )
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RETURN;
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img->gc = XCreateGC(xvar->display, clip_pix, 0, &xgcv);
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XPutImage(xvar->display, clip_pix, img->gc, clip_img,
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0, 0, 0, 0, width, height);
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XFreeGC(xvar->display, img->gc);
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xgcv.clip_mask = clip_pix;
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xgcv.function = GXcopy;
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xgcv.plane_mask = AllPlanes;
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img->gc = XCreateGC(xvar->display, xvar->root, GCClipMask|GCFunction|
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GCPlaneMask, &xgcv);
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XSync(xvar->display, False);
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XDestroyImage(clip_img);
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}
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if (colors)
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free(colors);
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if (colors_direct)
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free(colors_direct);
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return (img);
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}
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int mlx_int_file_get_rid_comment(char *ptr, int size)
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{
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int com_begin;
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int com_end;
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while ((com_begin = mlx_int_str_str_cote(ptr,"/*",size))!=-1)
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{
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com_end = mlx_int_str_str(ptr+com_begin+2,"*/",size-com_begin-2);
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memset(ptr+com_begin,' ',com_end+4);
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}
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while ((com_begin = mlx_int_str_str_cote(ptr,"//",size))!=-1)
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{
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com_end = mlx_int_str_str(ptr+com_begin+2,"\n",size-com_begin-2);
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memset(ptr+com_begin,' ',com_end+3);
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}
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}
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void *mlx_xpm_file_to_image(t_xvar *xvar,char *file,int *width,int *height)
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{
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int fd;
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int size;
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char *ptr;
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t_img *img;
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fd = -1;
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if ((fd = open(file,O_RDONLY))==-1 || (size = lseek(fd,0,SEEK_END))==-1 ||
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(ptr = mmap(0,size,PROT_WRITE|PROT_READ,MAP_PRIVATE,fd,0))==
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(void *)MAP_FAILED)
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{
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if (fd>=0)
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close(fd);
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return ((void *)0);
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}
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mlx_int_file_get_rid_comment(ptr, size);
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if (img = mlx_int_parse_xpm(xvar,ptr,size,mlx_int_get_line))
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{
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*width = img->width;
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*height = img->height;
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}
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munmap(ptr,size);
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close(fd);
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return (img);
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}
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void *mlx_xpm_to_image(t_xvar *xvar,char **xpm_data,int *width,int *height)
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{
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t_img *img;
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if (img = mlx_int_parse_xpm(xvar,xpm_data,0,mlx_int_static_line))
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{
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*width = img->width;
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*height = img->height;
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}
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return (img);
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}
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