wip: hb-paint
This commit is contained in:
Matthias Clasen
Behdad Esfahbod
parent
0066e824f0
commit
83d0a49f71
|
|
@ -40,6 +40,7 @@
|
|||
#include "hb-ot-shaper-vowel-constraints.cc"
|
||||
#include "hb-ot-tag.cc"
|
||||
#include "hb-ot-var.cc"
|
||||
#include "hb-paint.cc"
|
||||
#include "hb-set.cc"
|
||||
#include "hb-shape-plan.cc"
|
||||
#include "hb-shape.cc"
|
||||
|
|
|
|||
|
|
@ -45,6 +45,7 @@
|
|||
#include "hb-ot-shaper-vowel-constraints.cc"
|
||||
#include "hb-ot-tag.cc"
|
||||
#include "hb-ot-var.cc"
|
||||
#include "hb-paint.cc"
|
||||
#include "hb-set.cc"
|
||||
#include "hb-shape-plan.cc"
|
||||
#include "hb-shape.cc"
|
||||
|
|
|
|||
|
|
@ -979,6 +979,11 @@ struct ClipBox
|
|||
return true;
|
||||
}
|
||||
|
||||
void paint_glyph (hb_font_t *font, hb_codepoint_t glyph,
|
||||
hb_paint_funcs_t *funcs, void *paint_data) const
|
||||
{
|
||||
}
|
||||
|
||||
protected:
|
||||
union {
|
||||
HBUINT8 format; /* Format identifier */
|
||||
|
|
|
|||
|
|
@ -0,0 +1,311 @@
|
|||
/*
|
||||
* Copyright © 2022 Matthias Clasen
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include "hb.hh"
|
||||
|
||||
#ifndef HB_NO_PAINT
|
||||
|
||||
#include "hb-paint.hh"
|
||||
|
||||
static void
|
||||
hb_paint_push_transform_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
float xx HB_UNUSED, float xy HB_UNUSED,
|
||||
float yx HB_UNUSED, float yy HB_UNUSED,
|
||||
float x0 HB_UNUSED, float y0 HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_pop_transform_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_push_clip_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
hb_codepoint_t glyph HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_pop_clip_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_solid_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
unsigned int color_index HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_linear_gradient_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
hb_color_line_t *color_line HB_UNUSED,
|
||||
hb_position_t x0, hb_position_t y0 HB_UNUSED,
|
||||
hb_position_t x1, hb_position_t y1 HB_UNUSED,
|
||||
hb_position_t x2, hb_position_t y2 HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_radial_gradient_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
hb_color_line_t *color_line HB_UNUSED,
|
||||
hb_position_t x0, hb_position_t y0 HB_UNUSED,
|
||||
float r0 HB_UNUSED,
|
||||
hb_position_t x1 HB_UNUSED, hb_position_t y1 HB_UNUSED,
|
||||
float r1 HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_sweep_gradient_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
hb_color_line_t *color_line HB_UNUSED,
|
||||
hb_position_t x0, hb_position_t y0 HB_UNUSED,
|
||||
float start_angle HB_UNUSED,
|
||||
float end_angle HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_push_group_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static void
|
||||
hb_paint_pop_group_and_composite_nil (hb_paint_funcs_t *funcs HB_UNUSED, void *paint_data HB_UNUSED,
|
||||
hb_paint_composite_mode_t mode,
|
||||
void *user_data HB_UNUSED) {}
|
||||
|
||||
static bool
|
||||
_hb_paint_funcs_set_preamble (hb_paint_funcs_t *funcs,
|
||||
bool func_is_null,
|
||||
void **user_data,
|
||||
hb_destroy_func_t *destroy)
|
||||
{
|
||||
if (hb_object_is_immutable (funcs))
|
||||
{
|
||||
if (*destroy)
|
||||
(*destroy) (*user_data);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (func_is_null)
|
||||
{
|
||||
if (*destroy)
|
||||
(*destroy) (*user_data);
|
||||
*destroy = nullptr;
|
||||
*user_data = nullptr;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool
|
||||
_hb_paint_funcs_set_middle (hb_paint_funcs_t *funcs,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy)
|
||||
{
|
||||
if (user_data && !funcs->user_data)
|
||||
{
|
||||
funcs->user_data = (decltype (funcs->user_data)) hb_calloc (1, sizeof (*funcs->user_data));
|
||||
if (unlikely (!funcs->user_data))
|
||||
goto fail;
|
||||
}
|
||||
if (destroy && !funcs->destroy)
|
||||
{
|
||||
funcs->destroy = (decltype (funcs->destroy)) hb_calloc (1, sizeof (*funcs->destroy));
|
||||
if (unlikely (!funcs->destroy))
|
||||
goto fail;
|
||||
}
|
||||
|
||||
return true;
|
||||
|
||||
fail:
|
||||
if (destroy)
|
||||
(destroy) (user_data);
|
||||
return false;
|
||||
}
|
||||
|
||||
#define HB_PAINT_FUNC_IMPLEMENT(name) \
|
||||
\
|
||||
void \
|
||||
hb_paint_funcs_set_##name##_func (hb_paint_funcs_t *funcs, \
|
||||
hb_paint_##name##_func_t func, \
|
||||
void *user_data, \
|
||||
hb_destroy_func_t destroy) \
|
||||
{ \
|
||||
if (!_hb_paint_funcs_set_preamble (funcs, !func, &user_data, &destroy)) \
|
||||
return; \
|
||||
\
|
||||
if (funcs->destroy && funcs->destroy->name) \
|
||||
funcs->destroy->name (!funcs->user_data ? nullptr : funcs->user_data->name);\
|
||||
\
|
||||
if (!_hb_paint_funcs_set_middle (funcs, user_data, destroy)) \
|
||||
return; \
|
||||
\
|
||||
if (func) \
|
||||
funcs->func.name = func; \
|
||||
else \
|
||||
funcs->func.name = hb_paint_##name##_nil; \
|
||||
\
|
||||
if (funcs->user_data) \
|
||||
funcs->user_data->name = user_data; \
|
||||
if (funcs->destroy) \
|
||||
funcs->destroy->name = destroy; \
|
||||
}
|
||||
|
||||
HB_PAINT_FUNCS_IMPLEMENT_CALLBACKS
|
||||
#undef HB_PAINT_FUNC_IMPLEMENT
|
||||
|
||||
hb_paint_funcs_t *
|
||||
hb_paint_funcs_create ()
|
||||
{
|
||||
hb_paint_funcs_t *funcs;
|
||||
if (unlikely (!(funcs = hb_object_create<hb_paint_funcs_t> ())))
|
||||
return const_cast<hb_paint_funcs_t *> (&Null (hb_paint_funcs_t));
|
||||
|
||||
funcs->func = Null (hb_paint_funcs_t).func;
|
||||
|
||||
return funcs;
|
||||
}
|
||||
|
||||
DEFINE_NULL_INSTANCE (hb_paint_funcs_t) =
|
||||
{
|
||||
HB_OBJECT_HEADER_STATIC,
|
||||
|
||||
{
|
||||
#define HB_PAINT_FUNC_IMPLEMENT(name) hb_paint_##name##_nil,
|
||||
HB_PAINT_FUNCS_IMPLEMENT_CALLBACKS
|
||||
#undef HB_PAINT_FUNC_IMPLEMENT
|
||||
}
|
||||
};
|
||||
|
||||
hb_paint_funcs_t *
|
||||
hb_paint_funcs_reference (hb_paint_funcs_t *funcs)
|
||||
{
|
||||
return hb_object_reference (funcs);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_funcs_destroy (hb_paint_funcs_t *funcs)
|
||||
{
|
||||
if (!hb_object_destroy (funcs)) return;
|
||||
|
||||
if (funcs->destroy)
|
||||
{
|
||||
#define HB_PAINT_FUNC_IMPLEMENT(name) \
|
||||
if (funcs->destroy->name) funcs->destroy->name (!funcs->user_data ? nullptr : funcs->user_data->name);
|
||||
HB_PAINT_FUNCS_IMPLEMENT_CALLBACKS
|
||||
#undef HB_PAINT_FUNC_IMPLEMENT
|
||||
}
|
||||
|
||||
hb_free (funcs->destroy);
|
||||
hb_free (funcs->user_data);
|
||||
hb_free (funcs);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_funcs_make_immutable (hb_paint_funcs_t *funcs)
|
||||
{
|
||||
if (hb_object_is_immutable (funcs))
|
||||
return;
|
||||
|
||||
hb_object_make_immutable (funcs);
|
||||
}
|
||||
|
||||
hb_bool_t
|
||||
hb_paint_funcs_is_immutable (hb_paint_funcs_t *funcs)
|
||||
{
|
||||
return hb_object_is_immutable (funcs);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_push_transform (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
float xx, float xy,
|
||||
float yx, float yy,
|
||||
float x0, float y0)
|
||||
{
|
||||
funcs->push_transform (paint_data, xx, xy, yx, yy, x0, y0);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_pop_transform (hb_paint_funcs_t *funcs, void *paint_data)
|
||||
{
|
||||
funcs->pop_transform (paint_data);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_push_clip (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_codepoint_t glyph)
|
||||
{
|
||||
funcs->push_clip (paint_data, glyph);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_pop_clip (hb_paint_funcs_t *funcs, void *paint_data)
|
||||
{
|
||||
funcs->pop_clip (paint_data);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_solid (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
unsigned int color_index)
|
||||
{
|
||||
funcs->solid (paint_data, color_index);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_linear_gradient (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
hb_position_t x2, hb_position_t y2)
|
||||
{
|
||||
funcs->linear_gradient (paint_data, color_line, x0, y0, x1, y1, x2, y2);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_radial_gradient (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float r0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
float r1)
|
||||
{
|
||||
funcs->radial_gradient (paint_data, color_line, x0, y0, r0, y1, x1, r1);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_sweep_gradient (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float start_angle, float end_angle)
|
||||
{
|
||||
funcs->sweep_gradient (paint_data, color_line, x0, y0, start_angle, end_angle);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_push_group (hb_paint_funcs_t *funcs, void *paint_data)
|
||||
{
|
||||
funcs->push_group (paint_data);
|
||||
}
|
||||
|
||||
void
|
||||
hb_paint_pop_group_and_composite (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_paint_composite_mode_t mode)
|
||||
{
|
||||
funcs->pop_group_and_composite (paint_data, mode);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,276 @@
|
|||
/*
|
||||
* Copyright © 2022 Matthias Clasen
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
|
||||
#error "Include <hb.h> instead."
|
||||
#endif
|
||||
|
||||
#ifndef HB_PAINT_H
|
||||
#define HB_PAINT_H
|
||||
|
||||
#include "hb.h"
|
||||
|
||||
HB_BEGIN_DECLS
|
||||
|
||||
typedef struct hb_paint_funcs_t hb_paint_funcs_t;
|
||||
|
||||
HB_EXTERN hb_paint_funcs_t *
|
||||
hb_paint_funcs_create ();
|
||||
|
||||
HB_EXTERN hb_paint_funcs_t *
|
||||
hb_paint_funcs_reference (hb_paint_funcs_t *funcs);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_destroy (hb_paint_funcs_t *funcs);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_make_immutable (hb_paint_funcs_t *funcs);
|
||||
|
||||
HB_EXTERN hb_bool_t
|
||||
hb_paint_funcs_is_immutable (hb_paint_funcs_t *funcs);
|
||||
|
||||
typedef void (*hb_paint_push_transform_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
float xx, float xy,
|
||||
float yx, float yy,
|
||||
float x0, float y0,
|
||||
void *user_data);
|
||||
|
||||
typedef void (*hb_paint_pop_transform_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
void *user_data);
|
||||
|
||||
typedef void (*hb_paint_push_clip_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
hb_codepoint_t glyph,
|
||||
void *user_data);
|
||||
|
||||
typedef void (*hb_paint_pop_clip_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
void *user_data);
|
||||
|
||||
typedef void (*hb_paint_solid_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
unsigned int color_index,
|
||||
void *user_data);
|
||||
|
||||
|
||||
typedef struct hb_color_line_t hb_color_line_t;
|
||||
|
||||
typedef struct {
|
||||
float offset;
|
||||
unsigned int color_index;
|
||||
} hb_color_stop_t;
|
||||
|
||||
HB_EXTERN unsigned int
|
||||
hb_color_line_get_color_stops (hb_color_line_t color_line,
|
||||
unsigned int start,
|
||||
unsigned int count,
|
||||
hb_color_stop_t *color_stops);
|
||||
|
||||
typedef enum {
|
||||
HB_PAINT_EXTEND_PAD,
|
||||
HB_PAINT_EXTEND_REPEAT,
|
||||
HB_PAINT_EXTEND_REFLECT
|
||||
} hb_paint_extend_t;
|
||||
|
||||
HB_EXTERN hb_paint_extend_t
|
||||
hb_color_line_get_extend (hb_color_line_t *color_line);
|
||||
|
||||
typedef void (*hb_paint_linear_gradient_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
hb_position_t x2, hb_position_t y2,
|
||||
void *user_data);
|
||||
|
||||
typedef void (*hb_paint_radial_gradient_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float r0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
float r1,
|
||||
void *user_data);
|
||||
|
||||
typedef void (*hb_paint_sweep_gradient_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float start_angle,
|
||||
float end_angle,
|
||||
void *user_data);
|
||||
|
||||
typedef enum {
|
||||
HB_PAINT_COMPOSITE_MODE_CLEAR,
|
||||
HB_PAINT_COMPOSITE_MODE_SRC,
|
||||
HB_PAINT_COMPOSITE_MODE_DEST,
|
||||
HB_PAINT_COMPOSITE_MODE_SRC_OVER,
|
||||
HB_PAINT_COMPOSITE_MODE_DEST_OVER,
|
||||
HB_PAINT_COMPOSITE_MODE_SRC_IN,
|
||||
HB_PAINT_COMPOSITE_MODE_DEST_IN,
|
||||
HB_PAINT_COMPOSITE_MODE_SRC_OUT,
|
||||
HB_PAINT_COMPOSITE_MODE_DEST_OUT,
|
||||
HB_PAINT_COMPOSITE_MODE_SRC_ATOP,
|
||||
HB_PAINT_COMPOSITE_MODE_DEST_ATOP,
|
||||
HB_PAINT_COMPOSITE_MODE_XOR,
|
||||
HB_PAINT_COMPOSITE_MODE_PLUS,
|
||||
HB_PAINT_COMPOSITE_MODE_SCREEN,
|
||||
HB_PAINT_COMPOSITE_MODE_OVERLAY,
|
||||
HB_PAINT_COMPOSITE_MODE_DARKEN,
|
||||
HB_PAINT_COMPOSITE_MODE_LIGHTEN,
|
||||
HB_PAINT_COMPOSITE_MODE_COLOR_DODGE,
|
||||
HB_PAINT_COMPOSITE_MODE_COLOR_BURN,
|
||||
HB_PAINT_COMPOSITE_MODE_HARD_LIGHT,
|
||||
HB_PAINT_COMPOSITE_MODE_SOFT_LIGHT,
|
||||
HB_PAINT_COMPOSITE_MODE_DIFFERENCE,
|
||||
HB_PAINT_COMPOSITE_MODE_EXCLUSION,
|
||||
HB_PAINT_COMPOSITE_MODE_MULTIPLY,
|
||||
HB_PAINT_COMPOSITE_MODE_HSL_HUE,
|
||||
HB_PAINT_COMPOSITE_MODE_HSL_SATURATION,
|
||||
HB_PAINT_COMPOSITE_MODE_HSL_COLOR,
|
||||
HB_PAINT_COMPOSITE_MODE_HSL_LUMINOSITY,
|
||||
} hb_paint_composite_mode_t;
|
||||
|
||||
typedef void (*hb_paint_push_group_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
void *user_data);
|
||||
|
||||
typedef void (*hb_paint_pop_group_and_composite_func_t) (hb_paint_funcs_t *funcs,
|
||||
void *paint_data,
|
||||
hb_paint_composite_mode_t mode,
|
||||
void *user_data);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_push_transform_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_push_transform_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_pop_transform_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_pop_transform_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_push_clip_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_push_clip_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_pop_clip_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_pop_clip_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_solid_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_solid_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_linear_gradient_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_linear_gradient_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_radial_gradient_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_radial_gradient_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_sweep_gradient_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_sweep_gradient_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_push_group_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_push_group_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_funcs_set_pop_group_and_composite_func (hb_paint_funcs_t *funcs,
|
||||
hb_paint_pop_group_and_composite_func_t func,
|
||||
void *user_data,
|
||||
hb_destroy_func_t destroy);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_push_transform (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
float xx, float xy,
|
||||
float yx, float yy,
|
||||
float x0, float y0);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_pop_transform (hb_paint_funcs_t *funcs, void *paint_data);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_push_clip (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_codepoint_t glyph);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_pop_clip (hb_paint_funcs_t *funcs, void *paint_data);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_solid (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
unsigned int color_index);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_linear_gradient (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
hb_position_t x2, hb_position_t y2);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_radial_gradient (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float r0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
float r1);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_sweep_gradient (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float start_angle, float end_angle);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_push_group (hb_paint_funcs_t *funcs, void *paint_data);
|
||||
|
||||
HB_EXTERN void
|
||||
hb_paint_pop_group_and_composite (hb_paint_funcs_t *funcs, void *paint_data,
|
||||
hb_paint_composite_mode_t mode);
|
||||
|
||||
HB_END_DECLS
|
||||
|
||||
#endif /* HB_PAINT_H */
|
||||
|
|
@ -0,0 +1,125 @@
|
|||
/*
|
||||
* Copyright © 2022 Matthias Clasen
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef HB_PAINT_HH
|
||||
#define HB_PAINT_HH
|
||||
|
||||
#include "hb.hh"
|
||||
|
||||
#define HB_PAINT_FUNCS_IMPLEMENT_CALLBACKS \
|
||||
HB_PAINT_FUNC_IMPLEMENT (push_transform) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (pop_transform) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (push_clip) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (pop_clip) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (solid) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (linear_gradient) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (radial_gradient) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (sweep_gradient) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (push_group) \
|
||||
HB_PAINT_FUNC_IMPLEMENT (pop_group_and_composite) \
|
||||
/* ^--- Add new callbacks here */
|
||||
|
||||
struct hb_paint_funcs_t
|
||||
{
|
||||
hb_object_header_t header;
|
||||
|
||||
struct {
|
||||
#define HB_PAINT_FUNC_IMPLEMENT(name) hb_paint_##name##_func_t name;
|
||||
HB_PAINT_FUNCS_IMPLEMENT_CALLBACKS
|
||||
#undef HB_PAINT_FUNC_IMPLEMENT
|
||||
} func;
|
||||
|
||||
struct {
|
||||
#define HB_PAINT_FUNC_IMPLEMENT(name) void *name;
|
||||
HB_PAINT_FUNCS_IMPLEMENT_CALLBACKS
|
||||
#undef HB_PAINT_FUNC_IMPLEMENT
|
||||
} *user_data;
|
||||
|
||||
struct {
|
||||
#define HB_PAINT_FUNC_IMPLEMENT(name) hb_destroy_func_t name;
|
||||
HB_PAINT_FUNCS_IMPLEMENT_CALLBACKS
|
||||
#undef HB_PAINT_FUNC_IMPLEMENT
|
||||
} *destroy;
|
||||
|
||||
void push_transform (void *paint_data,
|
||||
float xx, float xy,
|
||||
float yx, float yy,
|
||||
float x0, float y0)
|
||||
{ func.push_transform (this, paint_data,
|
||||
xx, xy, yx, yy, x0, y0,
|
||||
!user_data ? nullptr : user_data->push_transform); }
|
||||
void pop_transform (void *paint_data)
|
||||
{ func.pop_transform (this, paint_data,
|
||||
!user_data ? nullptr : user_data->pop_transform); }
|
||||
void push_clip (void *paint_data,
|
||||
hb_codepoint_t glyph)
|
||||
{ func.push_clip (this, paint_data,
|
||||
glyph,
|
||||
!user_data ? nullptr : user_data->push_clip); }
|
||||
void pop_clip (void *paint_data)
|
||||
{ func.pop_clip (this, paint_data,
|
||||
!user_data ? nullptr : user_data->pop_clip); }
|
||||
void solid (void *paint_data,
|
||||
unsigned int color_index)
|
||||
{ func.solid (this, paint_data,
|
||||
color_index,
|
||||
!user_data ? nullptr : user_data->solid); }
|
||||
void linear_gradient (void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
hb_position_t x2, hb_position_t y2)
|
||||
{ func.linear_gradient (this, paint_data,
|
||||
color_line, x0, y0, x1, y1, x2, y2,
|
||||
!user_data ? nullptr : user_data->linear_gradient); }
|
||||
void radial_gradient (void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float r0,
|
||||
hb_position_t x1, hb_position_t y1,
|
||||
float r1)
|
||||
{ func.radial_gradient (this, paint_data,
|
||||
color_line, x0, y0, r0, x1, y1, r1,
|
||||
!user_data ? nullptr : user_data->radial_gradient); }
|
||||
void sweep_gradient (void *paint_data,
|
||||
hb_color_line_t *color_line,
|
||||
hb_position_t x0, hb_position_t y0,
|
||||
float start_angle,
|
||||
float end_angle)
|
||||
{ func.sweep_gradient (this, paint_data,
|
||||
color_line, x0, y0, start_angle, end_angle,
|
||||
!user_data ? nullptr : user_data->sweep_gradient); }
|
||||
void push_group (void *paint_data)
|
||||
{ func.push_group (this, paint_data,
|
||||
!user_data ? nullptr : user_data->push_group); }
|
||||
void pop_group_and_composite (void *paint_data,
|
||||
hb_paint_composite_mode_t mode)
|
||||
{ func.pop_group_and_composite (this, paint_data,
|
||||
mode,
|
||||
!user_data ? nullptr : user_data->pop_group_and_composite); }
|
||||
|
||||
};
|
||||
DECLARE_NULL_INSTANCE (hb_paint_funcs_t);
|
||||
|
||||
#endif /* HB_PAINT_HH */
|
||||
1
src/hb.h
1
src/hb.h
|
|
@ -33,6 +33,7 @@
|
|||
#include "hb-common.h"
|
||||
#include "hb-deprecated.h"
|
||||
#include "hb-draw.h"
|
||||
#include "hb-paint.h"
|
||||
#include "hb-face.h"
|
||||
#include "hb-font.h"
|
||||
#include "hb-map.h"
|
||||
|
|
|
|||
|
|
@ -44,6 +44,8 @@ hb_base_sources = files(
|
|||
'hb-dispatch.hh',
|
||||
'hb-draw.cc',
|
||||
'hb-draw.hh',
|
||||
'hb-paint.cc',
|
||||
'hb-paint.hh',
|
||||
'hb-face.cc',
|
||||
'hb-face.hh',
|
||||
'hb-fallback-shape.cc',
|
||||
|
|
@ -276,6 +278,7 @@ hb_base_headers = files(
|
|||
'hb-cplusplus.hh',
|
||||
'hb-deprecated.h',
|
||||
'hb-draw.h',
|
||||
'hb-paint.h',
|
||||
'hb-face.h',
|
||||
'hb-font.h',
|
||||
'hb-map.h',
|
||||
|
|
|
|||
Loading…
Reference in New Issue