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quakeforge/include/r_text.h

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[renderer] Switch to using HarfBuzz for glyph positioning This means that QF should support more exotic fonts without any issue (once the rest of the text handling system is up to snuff) as HarfBuzz does all the hard work of handling OpenType, Graphite, etc text shaping, including kerning (when enabled). Also, font loading now loads all the glyphs into the atlas (preload is gone).
2022-09-04 11:56:38 +00:00
/*
r_text.h
Renderer text management
Copyright (C) 2022 Bill Currie <bill@taniwha.org>
Author: Bill Currie <bill@taniwha.org>
Date: 2022/9/4
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifndef __r_text_h
#define __r_text_h
#include <hb.h>
#include <hb-ft.h>
#include "QF/darray.h"
[ui] Convert view_t to an ECS entity Much of the nq/qw HUD system is quite broken, but the basic status bar seems to be working nicely. As is the console (both client and server). Possibly the biggest benefit is separating the rendering of HUD elements from the updating of them, and much less traversing of invisible views whose only purpose is to control the positioning of the visible views. The view flow tests are currently disabled until I adapt the flow code to ECS. There seems to be a problem with view resizing in that some gravities don't follow resizing correctly.
2022-10-31 15:40:52 +00:00
#include "QF/ecs/component.h"
typedef struct script_component_s {
hb_language_t language;
hb_script_t script;
hb_direction_t direction;
} script_component_t;
[renderer] Switch to using HarfBuzz for glyph positioning This means that QF should support more exotic fonts without any issue (once the rest of the text handling system is up to snuff) as HarfBuzz does all the hard work of handling OpenType, Graphite, etc text shaping, including kerning (when enabled). Also, font loading now loads all the glyphs into the atlas (preload is gone).
2022-09-04 11:56:38 +00:00
typedef struct rtext_s {
const char *text;
const char *language;
hb_script_t script;
hb_direction_t direction;
} rtext_t;
typedef struct r_hb_featureset_s DARRAY_TYPE (hb_feature_t) r_hb_featureset_t;
struct rfont_s;
struct rglyph_s;
[renderer] Remove rglyph_t struct It didn't really add anything of value as the glyph bitmap rects and the bearings were never used together, and the rest of the fields were entirely redundant. A small step towards using a component system for text.
2022-10-20 06:50:53 +00:00
typedef void rtext_render_t (uint32_t glyphid, int x, int y, void *data);
[renderer] Switch to using HarfBuzz for glyph positioning This means that QF should support more exotic fonts without any issue (once the rest of the text handling system is up to snuff) as HarfBuzz does all the hard work of handling OpenType, Graphite, etc text shaping, including kerning (when enabled). Also, font loading now loads all the glyphs into the atlas (preload is gone).
2022-09-04 11:56:38 +00:00
typedef struct rshaper_s {
struct rfont_s *rfont;
hb_font_t *font;
hb_buffer_t *buffer;
r_hb_featureset_t features;
} rshaper_t;
[ui] Convert view_t to an ECS entity Much of the nq/qw HUD system is quite broken, but the basic status bar seems to be working nicely. As is the console (both client and server). Possibly the biggest benefit is separating the rendering of HUD elements from the updating of them, and much less traversing of invisible views whose only purpose is to control the positioning of the visible views. The view flow tests are currently disabled until I adapt the flow code to ECS. There seems to be a problem with view resizing in that some gravities don't follow resizing correctly.
2022-10-31 15:40:52 +00:00
extern hb_feature_t LigatureOff;
extern hb_feature_t LigatureOn;
[renderer] Switch to using HarfBuzz for glyph positioning This means that QF should support more exotic fonts without any issue (once the rest of the text handling system is up to snuff) as HarfBuzz does all the hard work of handling OpenType, Graphite, etc text shaping, including kerning (when enabled). Also, font loading now loads all the glyphs into the atlas (preload is gone).
2022-09-04 11:56:38 +00:00
extern hb_feature_t KerningOff;
extern hb_feature_t KerningOn;
extern hb_feature_t CligOff;
extern hb_feature_t CligOn;
rshaper_t *RText_NewShaper (struct rfont_s *font);
void RText_DeleteShaper (rshaper_t *shaper);
void RText_AddFeature (rshaper_t *shaper, hb_feature_t feature);
void RText_ShapeText (rshaper_t *shaper, rtext_t *text);
void RText_RenderText (rshaper_t *shaper, rtext_t *text, int x, int y,
rtext_render_t *render, void *data);
#endif//__r_text_h
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