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| 3959 | Serge | 1 | /* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */ |
| 2 | /* cairo - a vector graphics library with display and print output |
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| 3 | * |
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| 4 | * Copyright © 2009 Adrian Johnson |
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| 5 | * |
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| 6 | * This library is free software; you can redistribute it and/or |
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| 7 | * modify it either under the terms of the GNU Lesser General Public |
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| 8 | * License version 2.1 as published by the Free Software Foundation |
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| 9 | * (the "LGPL") or, at your option, under the terms of the Mozilla |
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| 10 | * Public License Version 1.1 (the "MPL"). If you do not alter this |
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| 11 | * notice, a recipient may use your version of this file under either |
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| 12 | * the MPL or the LGPL. |
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| 13 | * |
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| 14 | * You should have received a copy of the LGPL along with this library |
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| 15 | * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
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| 17 | * You should have received a copy of the MPL along with this library |
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| 18 | * in the file COPYING-MPL-1.1 |
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| 19 | * |
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| 20 | * The contents of this file are subject to the Mozilla Public License |
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| 21 | * Version 1.1 (the "License"); you may not use this file except in |
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| 22 | * compliance with the License. You may obtain a copy of the License at |
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| 23 | * http://www.mozilla.org/MPL/ |
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| 24 | * |
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| 25 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
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| 26 | * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
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| 27 | * the specific language governing rights and limitations. |
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| 28 | * |
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| 29 | * The Original Code is the cairo graphics library. |
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| 30 | * |
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| 31 | * The Initial Developer of the Original Code is Adrian Johnson. |
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| 32 | * |
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| 33 | * Contributor(s): |
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| 34 | * Adrian Johnson |
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| 35 | */ |
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| 36 | |||
| 37 | #ifndef CAIRO_PDF_SHADING_H |
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| 38 | #define CAIRO_PDF_SHADING_H |
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| 39 | |||
| 40 | #include "cairo-compiler-private.h" |
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| 41 | #include "cairo-types-private.h" |
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| 42 | #include "cairo-pattern-private.h" |
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| 43 | |||
| 44 | |||
| 45 | typedef struct _cairo_pdf_shading { |
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| 46 | int shading_type; |
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| 47 | int bits_per_coordinate; |
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| 48 | int bits_per_component; |
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| 49 | int bits_per_flag; |
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| 50 | double *decode_array; |
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| 51 | int decode_array_length; |
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| 52 | unsigned char *data; |
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| 53 | unsigned long data_length; |
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| 54 | } cairo_pdf_shading_t; |
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| 55 | |||
| 56 | |||
| 57 | /** |
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| 58 | * _cairo_pdf_shading_init_color: |
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| 59 | * @shading: a #cairo_pdf_shading_t to initialize |
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| 60 | * @pattern: the #cairo_mesh_pattern_t to initialize from |
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| 61 | * |
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| 62 | * Generate the PDF shading dictionary data for the a PDF type 7 |
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| 63 | * shading from RGB part of the specified mesh pattern. |
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| 64 | * |
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| 65 | * Return value: %CAIRO_STATUS_SUCCESS if successful, possible errors |
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| 66 | * include %CAIRO_STATUS_NO_MEMORY. |
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| 67 | **/ |
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| 68 | cairo_private cairo_status_t |
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| 69 | _cairo_pdf_shading_init_color (cairo_pdf_shading_t *shading, |
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| 70 | const cairo_mesh_pattern_t *pattern); |
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| 71 | |||
| 72 | |||
| 73 | /** |
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| 74 | * _cairo_pdf_shading_init_alpha: |
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| 75 | * @shading: a #cairo_pdf_shading_t to initialize |
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| 76 | * @pattern: the #cairo_mesh_pattern_t to initialize from |
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| 77 | * |
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| 78 | * Generate the PDF shading dictionary data for a PDF type 7 |
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| 79 | * shading from alpha part of the specified mesh pattern. |
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| 80 | * |
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| 81 | * Return value: %CAIRO_STATUS_SUCCESS if successful, possible errors |
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| 82 | * include %CAIRO_STATUS_NO_MEMORY. |
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| 83 | **/ |
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| 84 | cairo_private cairo_status_t |
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| 85 | _cairo_pdf_shading_init_alpha (cairo_pdf_shading_t *shading, |
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| 86 | const cairo_mesh_pattern_t *pattern); |
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| 87 | |||
| 88 | /** |
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| 89 | * _cairo_pdf_shading_fini: |
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| 90 | * @shading: a #cairo_pdf_shading_t |
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| 91 | * |
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| 92 | * Free all resources associated with @shading. After this call, |
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| 93 | * @shading should not be used again without a subsequent call to |
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| 94 | * _cairo_pdf_shading_init() again first. |
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| 95 | **/ |
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| 96 | cairo_private void |
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| 97 | _cairo_pdf_shading_fini (cairo_pdf_shading_t *shading); |
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| 98 | |||
| 99 | |||
| 100 | #endif /* CAIRO_PDF_SHADING_H */ |