hb-raster-svg-context.hh

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/*

 * Copyright © 2026  Behdad Esfahbod

 *  This is part of HarfBuzz, a text shaping library.

 * Permission is hereby granted, without written agreement and without

 * license or royalty fees, to use, copy, modify, and distribute this

 * software and its documentation for any purpose, provided that the

 * above copyright notice and the following two paragraphs appear in

 * all copies of this software.

 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

 * DAMAGE.

 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS

 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 * Author(s): Behdad Esfahbod

*/

#ifndef HB_RASTER_SVG_CONTEXT_HH

#define HB_RASTER_SVG_CONTEXT_HH

#include "hb.hh"

#include "OT/Color/svg/svg.hh"

#include "hb-decycler.hh"

#include "hb-raster-paint.hh"

#include "hb-raster-svg-base.hh"

#include "hb-raster-svg-defs.hh"

struct hb_svg_fill_context_t

  hb_raster_paint_t *paint;

  hb_paint_funcs_t *pfuncs;

  hb_font_t *font;

  unsigned palette;

  hb_svg_defs_t *defs;

};

struct hb_svg_use_context_t

  hb_raster_paint_t *paint;

  hb_paint_funcs_t *pfuncs;

  const char *doc_start;

  unsigned doc_len;

  const OT::SVG::accelerator_t *svg_accel;

  const OT::SVG::svg_doc_cache_t *doc_cache;

  hb_decycler_t *use_decycler;

};

struct hb_svg_render_context_t

  hb_raster_paint_t *paint;

  hb_paint_funcs_t *pfuncs;

  hb_font_t *font;

  unsigned palette;

  hb_color_t foreground;

  hb_svg_defs_t defs;

  int depth = 0;

  const char *doc_start;

  unsigned doc_len;

  const OT::SVG::accelerator_t *svg_accel = nullptr;

  const OT::SVG::svg_doc_cache_t *doc_cache = nullptr;

  hb_decycler_t use_decycler;

  bool suppress_viewbox_once = false;

  bool allow_symbol_render_once = false;

  void push_transform (float xx, float yx, float xy, float yy, float dx, float dy)

    hb_paint_push_transform (pfuncs, paint, xx, yx, xy, yy, dx, dy);

  void pop_transform ()

    hb_paint_pop_transform (pfuncs, paint);

  void push_group ()

    hb_paint_push_group (pfuncs, paint);

  void pop_group (hb_paint_composite_mode_t mode)

    hb_paint_pop_group (pfuncs, paint, mode);

  void paint_color (hb_color_t color)

    hb_paint_color (pfuncs, paint, false, color);

  void pop_clip ()

    hb_paint_pop_clip (pfuncs, paint);

};

struct hb_svg_cascade_t

  hb_svg_str_t fill;

  float fill_opacity = 1.f;

  hb_svg_str_t clip_path;

  hb_color_t color = HB_COLOR (0, 0, 0, 255);

  bool visibility = true;

  float opacity = 1.f;

};

#endif /* HB_RASTER_SVG_CONTEXT_HH */