- /*
- * libcaca Colour ASCII-Art library
- * Copyright (c) 2002-2009 Sam Hocevar <sam@hocevar.net>
- * All Rights Reserved
- *
- * $Id$
- *
- * This library is free software. It comes without any warranty, to
- * the extent permitted by applicable law. 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.
- */
-
- /*
- * This file contains legacy functions that we keep around until all
- * applications are ported.
- */
-
- #include "config.h"
-
- #if !defined(__KERNEL__)
- # include <stdio.h>
- # include <stdlib.h>
- # include <string.h>
- #endif
-
- #include "caca.h"
- #include "caca_internals.h"
-
- struct cucul_buffer
- {
- size_t size;
- char *data;
- int user_data;
- };
-
- /*
- * Functions from canvas.c
- */
-
- int cucul_putchar(cucul_canvas_t *cv, int x, int y, unsigned long int ch)
- {
- return caca_put_char(cv, x, y, ch);
- }
-
- unsigned long int cucul_getchar(cucul_canvas_t *cv, int x, int y)
- {
- return caca_get_char(cv, x, y);
- }
-
- int cucul_putstr(cucul_canvas_t *cv, int x, int y, char const *s)
- {
- return caca_put_str(cv, x, y, s);
- }
-
- /*
- * Functions from color.c
- */
-
- int cucul_set_color(cucul_canvas_t *cv, unsigned char fg, unsigned char bg)
- {
- return caca_set_color_ansi(cv, fg, bg);
- }
-
- int cucul_set_truecolor(cucul_canvas_t *cv, unsigned int fg, unsigned int bg)
- {
- return caca_set_color_argb(cv, fg, bg);
- }
-
- /*
- * Functions from dither.c
- */
- int cucul_set_dither_invert(cucul_dither_t *d, int value)
- {
- float gamma = caca_get_dither_gamma(d);
-
- if(gamma * (value ? -1 : 1) < 0)
- caca_set_dither_gamma(d, -gamma);
-
- return 0;
- }
-
- int cucul_set_dither_mode(cucul_dither_t *d, char const *s)
- {
- return caca_set_dither_algorithm(d, s);
- }
-
- char const * const * cucul_get_dither_mode_list(cucul_dither_t const *d)
- {
- return caca_get_dither_algorithm_list(d);
- }
-
- /*
- * Functions from import.c
- */
-
- cucul_canvas_t * cucul_import_canvas(cucul_buffer_t *buf, char const *format)
- {
- caca_canvas_t *cv = caca_create_canvas(0, 0);
- int ret = caca_import_canvas_from_memory(cv,
- (unsigned char const *)buf->data,
- buf->size, format);
- if(ret < 0)
- {
- caca_free_canvas(cv);
- return NULL;
- }
-
- return cv;
- }
-
- /*
- * Functions from export.c
- */
-
- cucul_buffer_t * cucul_export_canvas(cucul_canvas_t *cv, char const *format)
- {
- cucul_buffer_t *ex;
-
- ex = malloc(sizeof(cucul_buffer_t));
- if(!ex)
- {
- seterrno(ENOMEM);
- return NULL;
- }
-
- ex->data = caca_export_canvas_to_memory(cv, format, &ex->size);
- if(!ex->data)
- {
- free(ex);
- return NULL;
- }
-
- ex->user_data = 0;
-
- return ex;
- }
-
- /*
- * Functions from frame.c
- */
-
- unsigned int cucul_get_canvas_frame_count(cucul_canvas_t *cv)
- {
- return caca_get_frame_count(cv);
- }
-
- int cucul_set_canvas_frame(cucul_canvas_t *cv, unsigned int id)
- {
- return caca_set_frame(cv, id);
- }
-
- int cucul_create_canvas_frame(cucul_canvas_t *cv, unsigned int id)
- {
- return caca_create_frame(cv, id);
- }
-
- int cucul_free_canvas_frame(cucul_canvas_t *cv, unsigned int id)
- {
- return caca_free_frame(cv, id);
- }
-
- /*
- * Functions from buffer.c
- */
-
- cucul_buffer_t *cucul_load_memory(void *data, unsigned long int size)
- {
- cucul_buffer_t *buf;
-
- buf = malloc(sizeof(cucul_buffer_t));
- if(!buf)
- return NULL;
-
- buf->data = data;
- buf->size = size;
- buf->user_data = 1;
-
- return buf;
- }
-
- cucul_buffer_t *cucul_load_file(char const *file)
- {
- cucul_buffer_t *buf;
- caca_file_t *f;
- int ret;
-
- f = caca_file_open(file, "rb");
- if(!f)
- return NULL;
-
- buf = malloc(sizeof(cucul_buffer_t));
- if(!buf)
- {
- caca_file_close(f);
- return NULL;
- }
-
- buf->data = NULL;
- buf->size = 0;
-
- while(!caca_file_eof(f))
- {
- buf->data = realloc(buf->data, buf->size + 1024);
- if(!buf->data)
- {
- int saved_errno = geterrno();
- free(buf);
- caca_file_close(f);
- seterrno(saved_errno);
- return NULL;
- }
-
- ret = caca_file_read(f, buf->data + buf->size, 1024);
- if(ret >= 0)
- buf->size += ret;
- }
- caca_file_close(f);
-
- return buf;
- }
-
- unsigned long int cucul_get_buffer_size(cucul_buffer_t *buf)
- {
- return buf->size;
- }
-
- void * cucul_get_buffer_data(cucul_buffer_t *buf)
- {
- return buf->data;
- }
-
- int cucul_free_buffer(cucul_buffer_t *buf)
- {
- if(!buf->user_data)
- free(buf->data);
-
- free(buf);
-
- return 0;
- }
-
- /*
- * Functions from transform.c
- */
-
- int cucul_rotate(cucul_canvas_t *cv)
- {
- return caca_rotate_180(cv);
- }
-
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