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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_NO_RASTER_SVG
#include "hb.hh"
#include "hb-raster-svg-bbox.hh"
static void
svg_bbox_move_to (hb_draw_funcs_t *dfuncs HB_UNUSED,
void *draw_data,
hb_draw_state_t *st HB_UNUSED,
float to_x, float to_y,
void *user_data HB_UNUSED)
{
((hb_extents_t<> *) draw_data)->add_point (to_x, to_y);
}
static void
svg_bbox_line_to (hb_draw_funcs_t *dfuncs HB_UNUSED,
void *draw_data,
hb_draw_state_t *st HB_UNUSED,
float to_x, float to_y,
void *user_data HB_UNUSED)
{
((hb_extents_t<> *) draw_data)->add_point (to_x, to_y);
}
static void
svg_bbox_quadratic_to (hb_draw_funcs_t *dfuncs HB_UNUSED,
void *draw_data,
hb_draw_state_t *st HB_UNUSED,
float control_x, float control_y,
float to_x, float to_y,
void *user_data HB_UNUSED)
{
hb_extents_t<> *ext = (hb_extents_t<> *) draw_data;
ext->add_point (control_x, control_y);
ext->add_point (to_x, to_y);
}
static void
svg_bbox_cubic_to (hb_draw_funcs_t *dfuncs HB_UNUSED,
void *draw_data,
hb_draw_state_t *st HB_UNUSED,
float control1_x, float control1_y,
float control2_x, float control2_y,
float to_x, float to_y,
void *user_data HB_UNUSED)
{
hb_extents_t<> *ext = (hb_extents_t<> *) draw_data;
ext->add_point (control1_x, control1_y);
ext->add_point (control2_x, control2_y);
ext->add_point (to_x, to_y);
}
static hb_draw_funcs_t *
svg_bbox_draw_funcs ()
{
static hb_draw_funcs_t *funcs = nullptr;
if (unlikely (!funcs))
{
funcs = hb_draw_funcs_create ();
hb_draw_funcs_set_move_to_func (funcs, svg_bbox_move_to, nullptr, nullptr);
hb_draw_funcs_set_line_to_func (funcs, svg_bbox_line_to, nullptr, nullptr);
hb_draw_funcs_set_quadratic_to_func (funcs, svg_bbox_quadratic_to, nullptr, nullptr);
hb_draw_funcs_set_cubic_to_func (funcs, svg_bbox_cubic_to, nullptr, nullptr);
hb_draw_funcs_make_immutable (funcs);
}
return funcs;
}
bool
hb_raster_svg_compute_shape_bbox (const hb_svg_shape_emit_data_t &shape,
hb_extents_t<> *bbox)
{
hb_extents_t<> ext;
hb_svg_shape_emit_data_t tmp = shape;
hb_raster_svg_shape_path_emit (svg_bbox_draw_funcs (), &ext, &tmp);
if (ext.is_empty ()) return false;
*bbox = ext;
return true;
}
#endif /* !HB_NO_RASTER_SVG */