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/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
/* cairo - a vector graphics library with display and print output
*
* Copyright © 2009 Adrian Johnson
*
* 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 Adrian Johnson.
*
* Contributor(s):
* Adrian Johnson <ajohnson@redneon.com>
*/
#ifndef CAIRO_PDF_SHADING_H
#define CAIRO_PDF_SHADING_H
#include "cairo-compiler-private.h"
#include "cairo-types-private.h"
#include "cairo-pattern-private.h"
typedef struct _cairo_pdf_shading {
int shading_type;
int bits_per_coordinate;
int bits_per_component;
int bits_per_flag;
double *decode_array;
int decode_array_length;
unsigned char *data;
unsigned long data_length;
} cairo_pdf_shading_t;
/**
* _cairo_pdf_shading_init_color:
* @shading: a #cairo_pdf_shading_t to initialize
* @pattern: the #cairo_mesh_pattern_t to initialize from
*
* Generate the PDF shading dictionary data for the a PDF type 7
* shading from RGB part of the specified mesh pattern.
*
* Return value: %CAIRO_STATUS_SUCCESS if successful, possible errors
* include %CAIRO_STATUS_NO_MEMORY.
**/
cairo_private cairo_status_t
_cairo_pdf_shading_init_color (cairo_pdf_shading_t *shading,
const cairo_mesh_pattern_t *pattern);
/**
* _cairo_pdf_shading_init_alpha:
* @shading: a #cairo_pdf_shading_t to initialize
* @pattern: the #cairo_mesh_pattern_t to initialize from
*
* Generate the PDF shading dictionary data for a PDF type 7
* shading from alpha part of the specified mesh pattern.
*
* Return value: %CAIRO_STATUS_SUCCESS if successful, possible errors
* include %CAIRO_STATUS_NO_MEMORY.
**/
cairo_private cairo_status_t
_cairo_pdf_shading_init_alpha (cairo_pdf_shading_t *shading,
const cairo_mesh_pattern_t *pattern);
/**
* _cairo_pdf_shading_fini:
* @shading: a #cairo_pdf_shading_t
*
* Free all resources associated with @shading. After this call,
* @shading should not be used again without a subsequent call to
* _cairo_pdf_shading_init() again first.
**/
cairo_private void
_cairo_pdf_shading_fini (cairo_pdf_shading_t *shading);
#endif /* CAIRO_PDF_SHADING_H */