src/cairo-pdf-surface-private.h

   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
   3  *
   4  * Copyright © 2004 Red Hat, Inc
   5  * Copyright © 2006 Red Hat, Inc
   6  * Copyright © 2007, 2008 Adrian Johnson
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it either under the terms of the GNU Lesser General Public
  10  * License version 2.1 as published by the Free Software Foundation
  11  * (the "LGPL") or, at your option, under the terms of the Mozilla
  12  * Public License Version 1.1 (the "MPL"). If you do not alter this
  13  * notice, a recipient may use your version of this file under either
  14  * the MPL or the LGPL.
  15  *
  16  * You should have received a copy of the LGPL along with this library
  17  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
  19  * You should have received a copy of the MPL along with this library
  20  * in the file COPYING-MPL-1.1
  21  *
  22  * The contents of this file are subject to the Mozilla Public License
  23  * Version 1.1 (the "License"); you may not use this file except in
  24  * compliance with the License. You may obtain a copy of the License at
  25  * http://www.mozilla.org/MPL/
  26  *
  27  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
  28  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
  29  * the specific language governing rights and limitations.
  30  *
  31  * The Original Code is the cairo graphics library.
  32  *
  33  * The Initial Developer of the Original Code is University of Southern
  34  * California.
  35  *
  36  * Contributor(s):
  37  *      Kristian Høgsberg <krh@redhat.com>
  38  *      Carl Worth <cworth@cworth.org>
  39  *      Adrian Johnson <ajohnson@redneon.com>
  40  */
  41
  42 #ifndef CAIRO_PDF_SURFACE_PRIVATE_H
  43 #define CAIRO_PDF_SURFACE_PRIVATE_H
  44
  45 #include "cairo-pdf.h"
  46
  47 #include "cairo-surface-private.h"
  48 #include "cairo-surface-clipper-private.h"
  49 #include "cairo-pdf-operators-private.h"
  50 #include "cairo-path-fixed-private.h"
  51
  52 typedef struct _cairo_pdf_resource {
  53     unsigned int id;
  54 } cairo_pdf_resource_t;
  55
  56 #define CAIRO_NUM_OPERATORS (CAIRO_OPERATOR_HSL_LUMINOSITY + 1)
  57
  58 typedef struct _cairo_pdf_group_resources {
  59     cairo_bool_t  operators[CAIRO_NUM_OPERATORS];
  60     cairo_array_t alphas;
  61     cairo_array_t smasks;
  62     cairo_array_t patterns;
  63     cairo_array_t shadings;
  64     cairo_array_t xobjects;
  65     cairo_array_t fonts;
  66 } cairo_pdf_group_resources_t;
  67
  68 typedef struct _cairo_pdf_source_surface_entry {
  69     cairo_hash_entry_t base;
  70     unsigned int id;
  71     unsigned char *unique_id;
  72     unsigned long unique_id_length;
  73     cairo_bool_t interpolate;
  74     cairo_bool_t stencil_mask;
  75     cairo_pdf_resource_t surface_res;
  76     int width;
  77     int height;
  78     cairo_rectangle_int_t extents;
  79 } cairo_pdf_source_surface_entry_t;
  80
  81 typedef struct _cairo_pdf_source_surface {
  82     cairo_pattern_type_t type;
  83     cairo_surface_t *surface;
  84     cairo_pattern_t *raster_pattern;
  85     cairo_pdf_source_surface_entry_t *hash_entry;
  86 } cairo_pdf_source_surface_t;
  87
  88 typedef struct _cairo_pdf_pattern {
  89     double width;
  90     double height;
  91     cairo_rectangle_int_t extents;
  92     cairo_pattern_t *pattern;
  93     cairo_pdf_resource_t pattern_res;
  94     cairo_pdf_resource_t gstate_res;
  95     cairo_bool_t is_shading;
  96 } cairo_pdf_pattern_t;
  97
  98 typedef enum _cairo_pdf_operation {
  99     PDF_PAINT,
 100     PDF_MASK,
 101     PDF_FILL,
 102     PDF_STROKE,
 103     PDF_SHOW_GLYPHS
 104 } cairo_pdf_operation_t;
 105
 106 typedef struct _cairo_pdf_smask_group {
 107     double                width;
 108     double                height;
 109     cairo_rectangle_int_t extents;
 110     cairo_pdf_resource_t  group_res;
 111     cairo_pdf_operation_t operation;
 112     cairo_pattern_t      *source;
 113     cairo_pdf_resource_t  source_res;
 114     cairo_pattern_t      *mask;
 115     cairo_path_fixed_t    path;
 116     cairo_fill_rule_t     fill_rule;
 117     cairo_stroke_style_t  style;
 118     cairo_matrix_t        ctm;
 119     cairo_matrix_t        ctm_inverse;
 120     char                 *utf8;
 121     int                   utf8_len;
 122     cairo_glyph_t        *glyphs;
 123     int                   num_glyphs;
 124     cairo_text_cluster_t *clusters;
 125     int                   num_clusters;
 126     cairo_bool_t          cluster_flags;
 127     cairo_scaled_font_t  *scaled_font;
 128 } cairo_pdf_smask_group_t;
 129
 130 typedef struct _cairo_pdf_surface cairo_pdf_surface_t;
 131
 132 struct _cairo_pdf_surface {
 133     cairo_surface_t base;
 134
 135     /* Prefer the name "output" here to avoid confusion over the
 136      * structure within a PDF document known as a "stream". */
 137     cairo_output_stream_t *output;
 138
 139     double width;
 140     double height;
 141     cairo_matrix_t cairo_to_pdf;
 142
 143     cairo_array_t objects;
 144     cairo_array_t pages;
 145     cairo_array_t rgb_linear_functions;
 146     cairo_array_t alpha_linear_functions;
 147     cairo_array_t page_patterns;
 148     cairo_array_t page_surfaces;
 149     cairo_hash_table_t *all_surfaces;
 150     cairo_array_t smask_groups;
 151     cairo_array_t knockout_group;
 152
 153     cairo_scaled_font_subsets_t *font_subsets;
 154     cairo_array_t fonts;
 155
 156     cairo_pdf_resource_t next_available_resource;
 157     cairo_pdf_resource_t pages_resource;
 158
 159     cairo_pdf_version_t pdf_version;
 160     cairo_bool_t compress_content;
 161
 162     cairo_pdf_resource_t content;
 163     cairo_pdf_resource_t content_resources;
 164     cairo_pdf_group_resources_t resources;
 165     cairo_bool_t has_fallback_images;
 166     cairo_bool_t header_emitted;
 167
 168     struct {
 169         cairo_bool_t active;
 170         cairo_pdf_resource_t self;
 171         cairo_pdf_resource_t length;
 172         long start_offset;
 173         cairo_bool_t compressed;
 174         cairo_output_stream_t *old_output;
 175     } pdf_stream;
 176
 177     struct {
 178         cairo_bool_t active;
 179         cairo_output_stream_t *stream;
 180         cairo_output_stream_t *mem_stream;
 181         cairo_output_stream_t *old_output;
 182         cairo_pdf_resource_t   resource;
 183         cairo_box_double_t     bbox;
 184         cairo_bool_t is_knockout;
 185     } group_stream;
 186
 187     cairo_surface_clipper_t clipper;
 188
 189     cairo_pdf_operators_t pdf_operators;
 190     cairo_paginated_mode_t paginated_mode;
 191     cairo_bool_t select_pattern_gstate_saved;
 192
 193     cairo_bool_t force_fallbacks;
 194
 195     cairo_operator_t current_operator;
 196     cairo_bool_t current_pattern_is_solid_color;
 197     cairo_bool_t current_color_is_stroke;
 198     double current_color_red;
 199     double current_color_green;
 200     double current_color_blue;
 201     double current_color_alpha;
 202
 203     cairo_surface_t *paginated_surface;
 204 };
 205
 206 #endif /* CAIRO_PDF_SURFACE_PRIVATE_H */