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Diffstat (limited to 'libs/cairo-1.16.0/src/cairo-output-stream-private.h')
| -rw-r--r-- | libs/cairo-1.16.0/src/cairo-output-stream-private.h | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/src/cairo-output-stream-private.h b/libs/cairo-1.16.0/src/cairo-output-stream-private.h new file mode 100644 index 0000000..2542646 --- /dev/null +++ b/libs/cairo-1.16.0/src/cairo-output-stream-private.h @@ -0,0 +1,201 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2006 Red Hat, Inc + * + * 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> + */ + +#ifndef CAIRO_OUTPUT_STREAM_PRIVATE_H +#define CAIRO_OUTPUT_STREAM_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-types-private.h" + +#include <stdlib.h> +#include <stdio.h> +#include <stdarg.h> + +typedef cairo_status_t +(*cairo_output_stream_write_func_t) (cairo_output_stream_t *output_stream, + const unsigned char *data, + unsigned int length); + +typedef cairo_status_t +(*cairo_output_stream_flush_func_t) (cairo_output_stream_t *output_stream); + +typedef cairo_status_t +(*cairo_output_stream_close_func_t) (cairo_output_stream_t *output_stream); + +struct _cairo_output_stream { + cairo_output_stream_write_func_t write_func; + cairo_output_stream_flush_func_t flush_func; + cairo_output_stream_close_func_t close_func; + unsigned long position; + cairo_status_t status; + cairo_bool_t closed; +}; + +extern const cairo_private cairo_output_stream_t _cairo_output_stream_nil; + +cairo_private void +_cairo_output_stream_init (cairo_output_stream_t *stream, + cairo_output_stream_write_func_t write_func, + cairo_output_stream_flush_func_t flush_func, + cairo_output_stream_close_func_t close_func); + +cairo_private cairo_status_t +_cairo_output_stream_fini (cairo_output_stream_t *stream); + + +/* We already have the following declared in cairo.h: + +typedef cairo_status_t (*cairo_write_func_t) (void *closure, + const unsigned char *data, + unsigned int length); +*/ +typedef cairo_status_t (*cairo_close_func_t) (void *closure); + + +/* This function never returns %NULL. If an error occurs (NO_MEMORY) + * while trying to create the output stream this function returns a + * valid pointer to a nil output stream. + * + * Note that even with a nil surface, the close_func callback will be + * called by a call to _cairo_output_stream_close or + * _cairo_output_stream_destroy. + */ +cairo_private cairo_output_stream_t * +_cairo_output_stream_create (cairo_write_func_t write_func, + cairo_close_func_t close_func, + void *closure); + +cairo_private cairo_output_stream_t * +_cairo_output_stream_create_in_error (cairo_status_t status); + +/* Tries to flush any buffer maintained by the stream or its delegates. */ +cairo_private cairo_status_t +_cairo_output_stream_flush (cairo_output_stream_t *stream); + +/* Returns the final status value associated with this object, just + * before its last gasp. This final status value will capture any + * status failure returned by the stream's close_func as well. */ +cairo_private cairo_status_t +_cairo_output_stream_close (cairo_output_stream_t *stream); + +/* Returns the final status value associated with this object, just + * before its last gasp. This final status value will capture any + * status failure returned by the stream's close_func as well. */ +cairo_private cairo_status_t +_cairo_output_stream_destroy (cairo_output_stream_t *stream); + +cairo_private void +_cairo_output_stream_write (cairo_output_stream_t *stream, + const void *data, size_t length); + +cairo_private void +_cairo_output_stream_write_hex_string (cairo_output_stream_t *stream, + const unsigned char *data, + size_t length); + +cairo_private void +_cairo_output_stream_vprintf (cairo_output_stream_t *stream, + const char *fmt, + va_list ap) CAIRO_PRINTF_FORMAT ( 2, 0); + +cairo_private void +_cairo_output_stream_printf (cairo_output_stream_t *stream, + const char *fmt, + ...) CAIRO_PRINTF_FORMAT (2, 3); + +/* Print matrix element values with rounding of insignificant digits. */ +cairo_private void +_cairo_output_stream_print_matrix (cairo_output_stream_t *stream, + const cairo_matrix_t *matrix); + +cairo_private long +_cairo_output_stream_get_position (cairo_output_stream_t *stream); + +cairo_private cairo_status_t +_cairo_output_stream_get_status (cairo_output_stream_t *stream); + +/* This function never returns %NULL. If an error occurs (NO_MEMORY or + * WRITE_ERROR) while trying to create the output stream this function + * returns a valid pointer to a nil output stream. + * + * Note: Even if a nil surface is returned, the caller should still + * call _cairo_output_stream_destroy (or _cairo_output_stream_close at + * least) in order to ensure that everything is properly cleaned up. + */ +cairo_private cairo_output_stream_t * +_cairo_output_stream_create_for_filename (const char *filename); + +/* This function never returns %NULL. If an error occurs (NO_MEMORY or + * WRITE_ERROR) while trying to create the output stream this function + * returns a valid pointer to a nil output stream. + * + * The caller still "owns" file and is responsible for calling fclose + * on it when finished. The stream will not do this itself. + */ +cairo_private cairo_output_stream_t * +_cairo_output_stream_create_for_file (FILE *file); + +cairo_private cairo_output_stream_t * +_cairo_memory_stream_create (void); + +cairo_private void +_cairo_memory_stream_copy (cairo_output_stream_t *base, + cairo_output_stream_t *dest); + +cairo_private int +_cairo_memory_stream_length (cairo_output_stream_t *stream); + +cairo_private cairo_status_t +_cairo_memory_stream_destroy (cairo_output_stream_t *abstract_stream, + unsigned char **data_out, + unsigned long *length_out); + +cairo_private cairo_output_stream_t * +_cairo_null_stream_create (void); + +/* cairo-base85-stream.c */ +cairo_private cairo_output_stream_t * +_cairo_base85_stream_create (cairo_output_stream_t *output); + +/* cairo-base64-stream.c */ +cairo_private cairo_output_stream_t * +_cairo_base64_stream_create (cairo_output_stream_t *output); + +/* cairo-deflate-stream.c */ +cairo_private cairo_output_stream_t * +_cairo_deflate_stream_create (cairo_output_stream_t *output); + + +#endif /* CAIRO_OUTPUT_STREAM_PRIVATE_H */ |