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libcaca
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* Added preliminary ANSI importer, added import formats autodection

tags/v0.99.beta14
Jean-Yves Lamoureux jylam 18 anos atrás
pai
981c405554
commit
2e167ab614
2 arquivos alterados com 379 adições e 4 exclusões
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  1. +376
    -3
      cucul/import.c
  2. +3
    -1
      test/Makefile.am

+ 376
- 3
cucul/import.c Ver arquivo

@@ -29,6 +29,7 @@

static cucul_canvas_t *import_caca(void const *, unsigned int);
static cucul_canvas_t *import_text(void const *, unsigned int);
static cucul_canvas_t *import_ansi(void const *, unsigned int);

/** \brief Import a buffer into a canvas
*
@@ -48,15 +49,34 @@ static cucul_canvas_t *import_text(void const *, unsigned int);
cucul_canvas_t * cucul_import_canvas(void const *data, unsigned int size,
char const *format)
{
char const *buf = (char const*) data;

if(size==0 || data==NULL)
return NULL;

if(!strcasecmp("caca", format))
return import_caca(data, size);
if(!strcasecmp("text", format))
return import_text(data, size);
if(!strcasecmp("ansi", format))
return import_ansi(data, size);

/* FIXME: Try to autodetect */
if(!strcasecmp("", format))
return import_caca(data, size);

{
/* Autodetection */
if(size>=4) /* if 4 first letters are CACA */
{
if(buf[0] == 'C' && buf[1] == 'A' && buf[2] == 'C' && buf[3] != 'A')
return import_caca(data, size);
}
if(size>=2) /* If 2 first characters are ESC[ (not reliable at all) */
{
if((buf[0] == 0x1b) && (buf[1] == '['))
return import_ansi(data, size);
}
/* Otherwise, import it as text */
return import_caca(data, size);
}
return NULL;
}

@@ -76,6 +96,7 @@ char const * const * cucul_get_import_list(void)
"", "autodetect",
"text", "plain text",
"caca", "native libcaca format",
"ansi", "ANSI coloured text",
NULL, NULL
};

@@ -174,3 +195,355 @@ static cucul_canvas_t *import_text(void const *data, unsigned int size)
return cv;
}

#define IS_ALPHA(x) (x>='A' && x<='z')
void updateCanvasSize(cucul_canvas_t *cv, int x, int y, int *max_x, int *max_y);
unsigned char get_ansi_command(unsigned char const *buffer, int size);
int parse_tuple(unsigned int *ret, unsigned char const *buffer, int size);
void manage_modifiers(char c, int *fg, int *bg, int *old_fg, int *old_bg);

static cucul_canvas_t *import_ansi(void const *data, unsigned int size)
{
cucul_canvas_t *cv;
unsigned char const *buffer = (unsigned char const*)data;
unsigned int i, sent_size=0;
unsigned char c;
unsigned int count=0;
unsigned int tuple[1024]; /* Should be enough. Will it be ? */
int x=0, y=0, max_x = 80, max_y = 25;
int save_x=0, save_y=0;
unsigned int j, add=0;
int fg, bg, old_fg, old_bg;

fg = old_fg = CUCUL_COLOR_LIGHTGRAY;
bg = old_bg = CUCUL_COLOR_BLACK;

cv = cucul_create_canvas(max_x, max_y);

for(i = 0 ;i < size; i++)
{
if((buffer[i] == 0x1b) && (buffer[i+1] == '[')) /* ESC code */
{
i++; // ESC
i++; // [
sent_size = size-i;
c = get_ansi_command(&buffer[i], sent_size);
add = parse_tuple(tuple, &buffer[i], sent_size);
count = 0;

while(tuple[count] != 0x1337) count++; /* Gruik */


switch(c)
{
case 'f':
case 'H':
if(tuple[0] != 0x1337)
{
x=tuple[0];
if(tuple[1] != 0x1337)
y=tuple[1];
}
else
{
x = 0;
y = 0;
}
updateCanvasSize(cv, x, y, &max_x, &max_y);
break;
case 'A':
if(tuple[0] == 0x1337)
y-=1;
else
y-=tuple[0];
if(y<0) y=0;
updateCanvasSize(cv, x, y, &max_x, &max_y);
break;
case 'B':
if(tuple[0] == 0x1337)
y++;
else
y+=tuple[0];
updateCanvasSize(cv, x, y, &max_x, &max_y);
break;
case 'C':
if(tuple[0] == 0x1337)
x++;
else
x+=tuple[0];
updateCanvasSize(cv, x, y, &max_x, &max_y);
break;
case 'D':
if(tuple[0] == 0x1337)
x--;
else
x-=tuple[0];
if(x<0) x=0;
updateCanvasSize(cv, x, y, &max_x, &max_y);
break;
case 's':
save_x = x;
save_y = y;
break;
case 'u':
x = save_x;
y = save_y;
updateCanvasSize(cv, x, y, &max_x, &max_y);
break;
case 'J':
if(tuple[0] == 2)
{
x = 0;
y = 0;
updateCanvasSize(cv, x, y, &max_x, &max_y);
}
break;
case 'K':
// CLEAR END OF LINE
break;
case 'm':
for(j=0; j < count; j++)
manage_modifiers(tuple[j], &fg, &bg, &old_fg, &old_bg);
cucul_set_color(cv, fg, bg);
break;
default:
/*printf("Unknow command %c (%c)\n", c, IS_ALPHA(c)?c:'.');*/
break;
}


} else {
if(buffer[i] == '\n')
{
x = 0;
y++;
updateCanvasSize(cv, x, y, &max_x, &max_y);
}
else if(buffer[i] == '\r')
{
// DOS sucks.
}
else
{
if((buffer[i]>=0x20) || (buffer[i]<=0x7E))
{
_cucul_putchar32(cv, x, y,_cucul_cp437_to_utf32(buffer[i]));

// cucul_putchar(cv, x, y, buffer[i]);
}
else
cucul_putchar(cv, x, y, '?');
x++;
updateCanvasSize(cv, x, y, &max_x, &max_y);
}
}



i+=add; // add is tuple char count, then +[ +command
add = 0;

}
return cv;
}

/* XXX : ANSI loader helpers */

unsigned char get_ansi_command(unsigned char const *buffer, int size)
{
int i = 0;

for(i=0; i < size; i++)
if(IS_ALPHA(buffer[i]))
return buffer[i];

return 0;
}

int parse_tuple(unsigned int *ret, unsigned char const *buffer, int size)
{
int i = 0;
int j = 0;
int t = 0;
unsigned char nbr[1024];


ret[0] = 0x1337;

for(i=0; i < size; i++)
{
if(IS_ALPHA(buffer[i]))
{
if(j!=0) {
ret[t] = atoi((char*)nbr);
t++;
}
ret[t] = 0x1337;
j=0;
return i;
}
if(buffer[i] != ';')
{
nbr[j] = buffer[i];
nbr[j+1] = 0;
j++;
} else
{
ret[t] = atoi((char*)nbr);
t++;
ret[t] = 0x1337;
j=0;
}
}
return size;
}



void manage_modifiers(char c, int *fg, int *bg, int *old_fg, int *old_bg)
{
switch(c) {
case 0:
*fg = CUCUL_COLOR_LIGHTGRAY;
*bg = CUCUL_COLOR_BLACK;
break;
case 1: // BOLD

break;
case 4: // Underline

break;
case 5: // blink

break;
case 7: // reverse
*fg = 15-*fg;
*bg = 15-*bg;
break;
case 8: // invisible
*old_fg = *fg;
*old_bg = *bg;
*fg = CUCUL_COLOR_TRANSPARENT;
*bg = CUCUL_COLOR_TRANSPARENT;
break;
case 28: // not invisible
*fg = *old_fg;
*bg = *old_bg;
break;
case 30:
*fg = CUCUL_COLOR_BLACK;
break;
case 31:
*fg = CUCUL_COLOR_RED;
break;
case 32:
*fg = CUCUL_COLOR_GREEN;
break;
case 33:
*fg = CUCUL_COLOR_BROWN;
break;
case 34:
*fg = CUCUL_COLOR_BLUE;
break;
case 35:
*fg = CUCUL_COLOR_MAGENTA;
break;
case 36:
*fg = CUCUL_COLOR_CYAN;
break;
case 37:
*fg = CUCUL_COLOR_WHITE;
break;
case 39:
*fg = CUCUL_COLOR_LIGHTGRAY;
break;
case 40:
*bg = CUCUL_COLOR_BLACK;
break;
case 41:
*bg = CUCUL_COLOR_RED;
break;
case 42:
*bg = CUCUL_COLOR_GREEN;
break;
case 43:
*bg = CUCUL_COLOR_BROWN;
break;
case 44:
*bg = CUCUL_COLOR_BLUE;
break;
case 45:
*bg = CUCUL_COLOR_MAGENTA;
break;
case 46:
*bg = CUCUL_COLOR_CYAN;
break;
case 47:
*bg = CUCUL_COLOR_WHITE;
break;
case 49:
*bg = CUCUL_COLOR_BLACK;
break;

case 90:
*fg = CUCUL_COLOR_DARKGRAY;
break;
case 91:
*fg = CUCUL_COLOR_LIGHTRED;
break;
case 92:
*fg = CUCUL_COLOR_LIGHTGREEN;
break;
case 93:
*fg = CUCUL_COLOR_YELLOW;
break;
case 94:
*fg = CUCUL_COLOR_LIGHTBLUE;
break;
case 95:
*fg = CUCUL_COLOR_LIGHTMAGENTA;
break;
case 96:
*fg = CUCUL_COLOR_LIGHTCYAN;
break;
case 97:
*fg = CUCUL_COLOR_WHITE;
break;
case 100:
*bg = CUCUL_COLOR_DARKGRAY;
break;
case 101:
*bg = CUCUL_COLOR_LIGHTRED;
break;
case 102:
*bg = CUCUL_COLOR_LIGHTGREEN;
break;
case 103:
*bg = CUCUL_COLOR_YELLOW;
break;
case 104:
*bg = CUCUL_COLOR_LIGHTBLUE;
break;
case 105:
*bg = CUCUL_COLOR_LIGHTMAGENTA;
break;
case 106:
*bg = CUCUL_COLOR_LIGHTCYAN;
break;
case 107:
*bg = CUCUL_COLOR_WHITE;
break;
default:
/* printf("Unknow option to 'm' %d (%c)\n", c, IS_ALPHA(c)?c:'.'); */
break;

}
}


void updateCanvasSize(cucul_canvas_t *cv, int x, int y, int *max_x, int *max_y)
{
if(x>*max_x) *max_x = x;
if(y>*max_y) *max_y = y;

cucul_set_canvas_size(cv, *max_x, *max_y);
}

+ 3
- 1
test/Makefile.am Ver arquivo

@@ -2,7 +2,7 @@

AM_CPPFLAGS = -I$(top_srcdir)/cucul -I$(top_srcdir)/caca -DDATADIR=\"$(pkgdatadir)\"

noinst_PROGRAMS = colors demo dithering event export font frames gamma hsv spritedit text transform truecolor unicode
noinst_PROGRAMS = colors demo dithering event export font frames gamma hsv spritedit text transform truecolor unicode import

colors_SOURCES = colors.c
colors_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@
@@ -46,3 +46,5 @@ truecolor_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@
unicode_SOURCES = unicode.c
unicode_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@

import_SOURCES = import.c
import_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@

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