/* * libcucul Unicode canvas library * Copyright (c) 2002-2006 Sam Hocevar * All Rights Reserved * * This library is free software; you can redistribute it and/or * modify it under the terms of the Do What The Fuck You Want To * Public License, Version 2, as published by Sam Hocevar. See * http://sam.zoy.org/wtfpl/COPYING for more details. */ /** \file export.c * \version \$Id$ * \author Sam Hocevar * \author Jean-Yves Lamoureux * \brief Export function * * This file contains export functions for ANSI */ #include "config.h" #if !defined(__KERNEL__) # include # include # include #endif #include "cucul.h" #include "cucul_internals.h" /** \brief Generate ANSI representation of current image. * * This function generates and returns an ANSI representation of * the current image. * \param trailing if 0, raw ANSI will be generated. Otherwise, you'll be * able to cut/paste the result to a function like printf * \return buffer containing generated ANSI codes as a big string */ void _cucul_get_ansi(cucul_t *qq, struct cucul_buffer *ex) { static int const palette[] = { 0, 4, 2, 6, 1, 5, 3, 7, 8, 12, 10, 14, 9, 13, 11, 15 }; char *cur; unsigned int x, y; /* 23 bytes assumed for max length per pixel ('\e[5;1;3x;4y;9x;10ym' plus * 4 max bytes for a UTF-8 character). * Add height*9 to that (zeroes color at the end and jump to next line) */ ex->size = (qq->height * 9) + (qq->width * qq->height * 23); ex->buffer = malloc(ex->size); cur = ex->buffer; for(y = 0; y < qq->height; y++) { uint8_t *lineattr = qq->attr + y * qq->width; uint32_t *linechar = qq->chars + y * qq->width; uint8_t prevfg = -1; uint8_t prevbg = -1; for(x = 0; x < qq->width; x++) { uint8_t fg = palette[lineattr[x] & 0x0f]; uint8_t bg = palette[lineattr[x] >> 4]; uint32_t c = linechar[x]; if(fg != prevfg || bg != prevbg) { cur += sprintf(cur, "\033[0;"); if(fg < 8) if(bg < 8) cur += sprintf(cur, "3%d;4%dm", fg, bg); else cur += sprintf(cur, "5;3%d;4%d;10%dm", fg, bg - 8, bg - 8); else if(bg < 8) cur += sprintf(cur, "1;3%d;4%d;9%dm", fg - 8, bg, fg - 8); else cur += sprintf(cur, "5;1;3%d;4%d;9%d;10%dm", fg - 8, bg - 8, fg - 8, bg - 8); } *cur++ = c & 0x7f; prevfg = fg; prevbg = bg; } cur += sprintf(cur, "\033[0m\r\n"); } /* Crop to really used size */ ex->size = strlen(ex->buffer) + 1; ex->buffer = realloc(ex->buffer, ex->size); }