mutter/pango/cogl-pango-glyph-cache.h
Neil Roberts 12b751a8e1 cogl-pango: Use a separate glyph cache for mipmapped rendering
This reverts the changes in 54d8aadf which combined the two glyph
caches into one. We want to start using separate caches again so that
we can non-mipmapped textures into the global atlas.
2011-05-05 17:32:27 +01:00

94 lines
2.8 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2008 OpenedHand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __COGL_PANGO_GLYPH_CACHE_H__
#define __COGL_PANGO_GLYPH_CACHE_H__
#include <glib.h>
#include <cogl/cogl.h>
#include <pango/pango-font.h>
G_BEGIN_DECLS
typedef struct _CoglPangoGlyphCache CoglPangoGlyphCache;
typedef struct _CoglPangoGlyphCacheValue CoglPangoGlyphCacheValue;
struct _CoglPangoGlyphCacheValue
{
CoglHandle texture;
float tx1;
float ty1;
float tx2;
float ty2;
int tx_pixel;
int ty_pixel;
int draw_x;
int draw_y;
int draw_width;
int draw_height;
/* This will be set to TRUE when the glyph atlas is reorganized
which means the glyph will need to be redrawn */
gboolean dirty;
};
typedef void (* CoglPangoGlyphCacheDirtyFunc) (PangoFont *font,
PangoGlyph glyph,
CoglPangoGlyphCacheValue *value);
CoglPangoGlyphCache *
cogl_pango_glyph_cache_new (gboolean use_mipmapping);
void
cogl_pango_glyph_cache_free (CoglPangoGlyphCache *cache);
CoglPangoGlyphCacheValue *
cogl_pango_glyph_cache_lookup (CoglPangoGlyphCache *cache,
gboolean create,
PangoFont *font,
PangoGlyph glyph);
void
cogl_pango_glyph_cache_clear (CoglPangoGlyphCache *cache);
void
_cogl_pango_glyph_cache_add_reorganize_callback (CoglPangoGlyphCache *cache,
GHookFunc func,
void *user_data);
void
_cogl_pango_glyph_cache_remove_reorganize_callback (CoglPangoGlyphCache *cache,
GHookFunc func,
void *user_data);
void
_cogl_pango_glyph_cache_set_dirty_glyphs (CoglPangoGlyphCache *cache,
CoglPangoGlyphCacheDirtyFunc func);
G_END_DECLS
#endif /* __COGL_PANGO_GLYPH_CACHE_H__ */