347 lines
13 KiB
C
347 lines
13 KiB
C
/*
|
|
* 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_paint_funcs_set_push_transform_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_pop_transform_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_push_clip_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_pop_clip_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_solid_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_linear_gradient_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_radial_gradient_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_sweep_gradient_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_push_group_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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_paint_funcs_set_pop_group_and_composite_func:
|
|
* @funcs:
|
|
* @func: (closure user_data) (destroy destroy) (scop notified):
|
|
* @user_data:
|
|
* @destroy: (nullable)
|
|
*/
|
|
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 */
|