ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/cf.schmorp.de/Deliantra-Client/pangoopengl.h
Revision: 1.4
Committed: Sat Aug 11 12:07:54 2007 UTC (16 years, 11 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: rel-2_03, rel-2_02, rel-0_9965, rel-0_9964, rel-0_9963, rel-2_05, rel-2_04, rel-0_99, rel-0_9968, rel-0_9958, rel-0_9960, rel-2_0, rel-0_9956, rel-2_10, rel-2_11, rel-0_9972, rel-0_9973, rel-0_9974, rel-0_9975, rel-0_9976, rel-0_9977, rel-0_9978, rel-0_9957, rel-0_9955, rel-0_9971, rel-0_9967, rel-1_21, rel-0_9959, rel-0_9966, rel-0_995, HEAD
Changes since 1.3: +2 -0 lines
Log Message:
use rendercache to speed up text reendering and hopefully also save memory

File Contents

# User Rev Content
1 root 1.1 /* 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 root 1.3 #define FLAG_INVERSE 1
49     #define FLAG_OUTLINE 2 // not yet implemented
50    
51 root 1.1 /* Calls for applications */
52    
53     void
54     pango_opengl_render_layout_subpixel (PangoLayout *layout,
55 root 1.4 rc_t *rc,
56 root 1.1 int x, int y,
57 root 1.3 float r, float g, float b, float a,
58     int flags);
59 root 1.1
60     void
61     pango_opengl_render_layout (PangoLayout *layout,
62 root 1.4 rc_t *rc,
63 root 1.1 int x, int y,
64 root 1.3 float r, float g, float b, float a,
65     int flags);
66 root 1.1
67     GType pango_opengl_font_map_get_type (void);
68    
69     PangoFontMap *pango_opengl_font_map_new (void);
70     void pango_opengl_font_map_set_default_substitute (PangoOpenGLFontMap *fontmap,
71     PangoOpenGLSubstituteFunc func,
72     gpointer data,
73     GDestroyNotify notify);
74     void pango_opengl_font_map_substitute_changed (PangoOpenGLFontMap *fontmap);
75     PangoContext *pango_opengl_font_map_create_context (PangoOpenGLFontMap *fontmap);
76    
77     struct _PangoOpenGLFont
78     {
79     PangoFcFont font;
80    
81     FT_Face face;
82     int load_flags;
83    
84     int size;
85    
86     GSList *metrics_by_lang;
87    
88     GHashTable *glyph_info;
89     GDestroyNotify glyph_cache_destroy;
90     };
91    
92     struct _PangoOpenGLGlyphInfo
93     {
94     PangoRectangle logical_rect;
95     PangoRectangle ink_rect;
96     void *cached_glyph;
97     };
98    
99     #define PANGO_TYPE_OPENGL_FONT (pango_opengl_font_get_type ())
100     #define PANGO_OPENGL_FONT(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_OPENGL_FONT, PangoOpenGLFont))
101     #define PANGO_OPENGL_IS_FONT(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_OPENGL_FONT))
102    
103     #define PANGO_SCALE_26_6 (PANGO_SCALE / (1<<6))
104     #define PANGO_PIXELS_26_6(d) \
105     (((d) >= 0) ? \
106     ((d) + PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6 : \
107     ((d) - PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6)
108     #define PANGO_UNITS_26_6(d) (PANGO_SCALE_26_6 * (d))
109    
110     GType pango_opengl_font_get_type (void);
111    
112     PangoOpenGLFont *_pango_opengl_font_new (PangoOpenGLFontMap *fontmap, FcPattern *pattern);
113     FT_Library _pango_opengl_font_map_get_library (PangoFontMap *fontmap);
114    
115     void *_pango_opengl_font_get_cache_glyph_data (PangoFont *font, int glyph_index);
116     void _pango_opengl_font_set_cache_glyph_data (PangoFont *font, int glyph_index, void *cached_glyph);
117     void _pango_opengl_font_set_glyph_cache_destroy (PangoFont *font, GDestroyNotify destroy_notify);
118    
119     #define PANGO_TYPE_OPENGL_RENDERER (pango_opengl_renderer_get_type())
120     #define PANGO_OPENGL_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), PANGO_TYPE_OPENGL_RENDERER, PangoOpenGLRenderer))
121     #define PANGO_IS_OPENGL_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_OPENGL_RENDERER))
122    
123     GType pango_opengl_renderer_get_type (void);
124    
125     PangoRenderer *_pango_opengl_font_map_get_renderer (PangoOpenGLFontMap *fontmap);
126    
127 root 1.2 // ERROR/TODO: this is not public. this means we have to reimplement
128     // not just all of pangoft2, but all of pangofc. Whats the point
129     // of adding 3 layers of abstractions if you can't extend it in any way?
130     void pango_fc_font_get_raw_extents (PangoFcFont *font, FT_Int32 load_flags, PangoGlyph glyph, PangoRectangle *ink_rect, PangoRectangle *logical_rect);
131    
132 root 1.1 G_END_DECLS
133    
134     #endif