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/cvs/cf.schmorp.de/Deliantra-Client/pangoopengl.h
Revision: 1.2
Committed: Tue Jul 4 23:44:23 2006 UTC (18 years ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: rel-0_2
Changes since 1.1: +5 -0 lines
Log Message:
small fixed, ported to the language called microsoft c, which
superficially looks like ISO-C and is similar enough so you can write
programs in their common subset.

File Contents

# Content
1 /* Pango
2 * pangoopengl.h: OpenGL/Freetype2 backend
3 *
4 * Copyright (C) 1999 Red Hat Software
5 * Copyright (C) 2000 Tor Lillqvist
6 * Copyright (C) 2006 Marc Lehmann <pcg@goof.com>
7 *
8 * This file is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This file is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
22 */
23
24 #ifndef PANGOOPENGL_H__
25 #define PANGOOPENGL_H__
26
27 #include <glib-object.h>
28
29 #include <fontconfig/fontconfig.h>
30
31 #include <pango/pango-layout.h>
32 #include <pango/pangofc-font.h>
33
34 G_BEGIN_DECLS
35
36 #define PANGO_TYPE_OPENGL_FONT_MAP (pango_opengl_font_map_get_type ())
37 #define PANGO_OPENGL_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_OPENGL_FONT_MAP, PangoOpenGLFontMap))
38 #define PANGO_OPENGL_IS_FONT_MAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_OPENGL_FONT_MAP))
39
40 typedef struct _PangoOpenGLFontMap PangoOpenGLFontMap;
41 typedef struct _PangoOpenGLFont PangoOpenGLFont;
42 typedef struct _PangoOpenGLGlyphInfo PangoOpenGLGlyphInfo;
43 typedef struct _PangoOpenGLRenderer PangoOpenGLRenderer;
44 typedef struct _PangoOpenGLFontMapClass PangoOpenGLFontMapClass;
45
46 typedef void (*PangoOpenGLSubstituteFunc) (FcPattern *pattern, gpointer data);
47
48 /* Calls for applications */
49
50 void
51 pango_opengl_render_layout_subpixel (PangoLayout *layout,
52 int x, int y,
53 float r, float g, float b, float a);
54
55 void
56 pango_opengl_render_layout (PangoLayout *layout,
57 int x, int y,
58 float r, float g, float b, float a);
59
60 GType pango_opengl_font_map_get_type (void);
61
62 PangoFontMap *pango_opengl_font_map_new (void);
63 void pango_opengl_font_map_set_default_substitute (PangoOpenGLFontMap *fontmap,
64 PangoOpenGLSubstituteFunc func,
65 gpointer data,
66 GDestroyNotify notify);
67 void pango_opengl_font_map_substitute_changed (PangoOpenGLFontMap *fontmap);
68 PangoContext *pango_opengl_font_map_create_context (PangoOpenGLFontMap *fontmap);
69
70 struct _PangoOpenGLFont
71 {
72 PangoFcFont font;
73
74 FT_Face face;
75 int load_flags;
76
77 int size;
78
79 GSList *metrics_by_lang;
80
81 GHashTable *glyph_info;
82 GDestroyNotify glyph_cache_destroy;
83 };
84
85 struct _PangoOpenGLGlyphInfo
86 {
87 PangoRectangle logical_rect;
88 PangoRectangle ink_rect;
89 void *cached_glyph;
90 };
91
92 #define PANGO_TYPE_OPENGL_FONT (pango_opengl_font_get_type ())
93 #define PANGO_OPENGL_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_OPENGL_FONT, PangoOpenGLFont))
94 #define PANGO_OPENGL_IS_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_OPENGL_FONT))
95
96 #define PANGO_SCALE_26_6 (PANGO_SCALE / (1<<6))
97 #define PANGO_PIXELS_26_6(d) \
98 (((d) >= 0) ? \
99 ((d) + PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6 : \
100 ((d) - PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6)
101 #define PANGO_UNITS_26_6(d) (PANGO_SCALE_26_6 * (d))
102
103 GType pango_opengl_font_get_type (void);
104
105 PangoOpenGLFont *_pango_opengl_font_new (PangoOpenGLFontMap *fontmap, FcPattern *pattern);
106 FT_Library _pango_opengl_font_map_get_library (PangoFontMap *fontmap);
107
108 void *_pango_opengl_font_get_cache_glyph_data (PangoFont *font, int glyph_index);
109 void _pango_opengl_font_set_cache_glyph_data (PangoFont *font, int glyph_index, void *cached_glyph);
110 void _pango_opengl_font_set_glyph_cache_destroy (PangoFont *font, GDestroyNotify destroy_notify);
111
112 #define PANGO_TYPE_OPENGL_RENDERER (pango_opengl_renderer_get_type())
113 #define PANGO_OPENGL_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_OPENGL_RENDERER, PangoOpenGLRenderer))
114 #define PANGO_IS_OPENGL_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_OPENGL_RENDERER))
115
116 GType pango_opengl_renderer_get_type (void);
117
118 PangoRenderer *_pango_opengl_font_map_get_renderer (PangoOpenGLFontMap *fontmap);
119
120 // ERROR/TODO: this is not public. this means we have to reimplement
121 // not just all of pangoft2, but all of pangofc. Whats the point
122 // of adding 3 layers of abstractions if you can't extend it in any way?
123 void pango_fc_font_get_raw_extents (PangoFcFont *font, FT_Int32 load_flags, PangoGlyph glyph, PangoRectangle *ink_rect, PangoRectangle *logical_rect);
124
125 G_END_DECLS
126
127 #endif