diff options
Diffstat (limited to 'libs/cairo-1.16.0/src/cairo-base64-stream.c')
| -rw-r--r-- | libs/cairo-1.16.0/src/cairo-base64-stream.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-base64-stream.c b/libs/cairo-1.16.0/src/cairo-base64-stream.c deleted file mode 100644 index 6352545..0000000 --- a/libs/cairo-1.16.0/src/cairo-base64-stream.c +++ /dev/null @@ -1,144 +0,0 @@ -/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ -/* cairo - a vector graphics library with display and print output - * - * Copyright © 2005-2007 Emmanuel Pacaud <emmanuel.pacaud@free.fr> - * Copyright © 2009 Chris Wilson - * - * This library is free software; you can redistribute it and/or - * modify it either under the terms of the GNU Lesser General Public - * License version 2.1 as published by the Free Software Foundation - * (the "LGPL") or, at your option, under the terms of the Mozilla - * Public License Version 1.1 (the "MPL"). If you do not alter this - * notice, a recipient may use your version of this file under either - * the MPL or the LGPL. - * - * You should have received a copy of the LGPL along with this library - * in the file COPYING-LGPL-2.1; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA - * You should have received a copy of the MPL along with this library - * in the file COPYING-MPL-1.1 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY - * OF ANY KIND, either express or implied. See the LGPL or the MPL for - * the specific language governing rights and limitations. - * - * The Original Code is the cairo graphics library. - * - * The Initial Developer of the Original Code is Red Hat, Inc. - * - * Author(s): - * Kristian Høgsberg <krh@redhat.com> - * Chris Wilson <chris@chris-wilson.co.uk> - */ - -#include "cairoint.h" -#include "cairo-error-private.h" -#include "cairo-output-stream-private.h" - -typedef struct _cairo_base64_stream { - cairo_output_stream_t base; - cairo_output_stream_t *output; - unsigned int in_mem; - unsigned int trailing; - unsigned char src[3]; -} cairo_base64_stream_t; - -static char const base64_table[64] = -"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - -static cairo_status_t -_cairo_base64_stream_write (cairo_output_stream_t *base, - const unsigned char *data, - unsigned int length) -{ - cairo_base64_stream_t * stream = (cairo_base64_stream_t *) base; - unsigned char *src = stream->src; - unsigned int i; - - if (stream->in_mem + length < 3) { - for (i = 0; i < length; i++) { - src[i + stream->in_mem] = *data++; - } - stream->in_mem += length; - return CAIRO_STATUS_SUCCESS; - } - - do { - unsigned char dst[4]; - - for (i = stream->in_mem; i < 3; i++) { - src[i] = *data++; - length--; - } - stream->in_mem = 0; - - dst[0] = base64_table[src[0] >> 2]; - dst[1] = base64_table[(src[0] & 0x03) << 4 | src[1] >> 4]; - dst[2] = base64_table[(src[1] & 0x0f) << 2 | src[2] >> 6]; - dst[3] = base64_table[src[2] & 0xfc >> 2]; - /* Special case for the last missing bits */ - switch (stream->trailing) { - case 2: - dst[2] = '='; - case 1: - dst[3] = '='; - default: - break; - } - _cairo_output_stream_write (stream->output, dst, 4); - } while (length >= 3); - - for (i = 0; i < length; i++) { - src[i] = *data++; - } - stream->in_mem = length; - - return _cairo_output_stream_get_status (stream->output); -} - -static cairo_status_t -_cairo_base64_stream_close (cairo_output_stream_t *base) -{ - cairo_base64_stream_t *stream = (cairo_base64_stream_t *) base; - cairo_status_t status = CAIRO_STATUS_SUCCESS; - - if (stream->in_mem > 0) { - memset (stream->src + stream->in_mem, 0, 3 - stream->in_mem); - stream->trailing = 3 - stream->in_mem; - stream->in_mem = 3; - status = _cairo_base64_stream_write (base, NULL, 0); - } - - return status; -} - -cairo_output_stream_t * -_cairo_base64_stream_create (cairo_output_stream_t *output) -{ - cairo_base64_stream_t *stream; - - if (output->status) - return _cairo_output_stream_create_in_error (output->status); - - stream = _cairo_malloc (sizeof (cairo_base64_stream_t)); - if (unlikely (stream == NULL)) { - _cairo_error_throw (CAIRO_STATUS_NO_MEMORY); - return (cairo_output_stream_t *) &_cairo_output_stream_nil; - } - - _cairo_output_stream_init (&stream->base, - _cairo_base64_stream_write, - NULL, - _cairo_base64_stream_close); - - stream->output = output; - stream->in_mem = 0; - stream->trailing = 0; - - return &stream->base; -} |