227 lines
4.5 KiB
C
227 lines
4.5 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2008 Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Blender Foundation.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/blenfont/intern/blf_internal_types.h
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* \ingroup blf
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*/
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#ifndef __BLF_INTERNAL_TYPES_H__
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#define __BLF_INTERNAL_TYPES_H__
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typedef struct GlyphCacheBLF {
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struct GlyphCacheBLF *next;
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struct GlyphCacheBLF *prev;
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/* font size. */
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int size;
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/* and dpi. */
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int dpi;
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/* and the glyphs. */
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ListBase bucket[257];
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/* fast ascii lookup */
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struct GlyphBLF *glyph_ascii_table[256];
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/* texture array, to draw the glyphs. */
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GLuint *textures;
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/* size of the array. */
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int ntex;
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/* and the last texture, aka. the current texture. */
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int cur_tex;
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/* like bftgl, we draw every glyph in a big texture, so this is the
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* current position inside the texture.
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*/
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int x_offs;
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int y_offs;
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/* and the space from one to other. */
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unsigned int pad;
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/* and the bigger glyph in the font. */
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int max_glyph_width;
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int max_glyph_height;
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/* next two integer power of two, to build the texture. */
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int p2_width;
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int p2_height;
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/* number of glyphs in the font. */
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int num_glyphs;
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/* number of glyphs that we load here. */
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int rem_glyphs;
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/* ascender and descender value. */
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float ascender;
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float descender;
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} GlyphCacheBLF;
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typedef struct GlyphBLF {
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struct GlyphBLF *next;
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struct GlyphBLF *prev;
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/* and the character, as UTF8 */
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unsigned int c;
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/* freetype2 index, to speed-up the search. */
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FT_UInt idx;
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/* glyph box. */
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rctf box;
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/* advance size. */
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float advance;
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/* texture id where this glyph is store. */
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GLuint tex;
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/* position inside the texture where this glyph is store. */
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int xoff;
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int yoff;
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/* Bitmap data, from freetype. Take care that this
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* can be NULL.
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*/
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unsigned char *bitmap;
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/* glyph width and height. */
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int width;
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int height;
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int pitch;
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/* uv coords. */
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float uv[2][2];
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/* X and Y bearing of the glyph.
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* The X bearing is from the origin to the glyph left bbox edge.
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* The Y bearing is from the baseline to the top of the glyph edge.
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*/
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float pos_x;
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float pos_y;
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/* with value of zero mean that we need build the texture. */
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short build_tex;
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} GlyphBLF;
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typedef struct FontBLF {
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/* font name. */
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char *name;
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/* filename or NULL. */
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char *filename;
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/* aspect ratio or scale. */
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float aspect[3];
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/* initial position for draw the text. */
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float pos[3];
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/* angle in degrees. */
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float angle;
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/* blur: 3 or 5 large kernel */
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int blur;
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/* shadow level. */
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int shadow;
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/* and shadow offset. */
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int shadow_x;
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int shadow_y;
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/* shadow color. */
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float shadow_col[4];
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/* store color here when drawing shadow or blur. */
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float orig_col[4];
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/* Multiplied this matrix with the current one before
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* draw the text! see blf_draw__start.
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*/
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double m[16];
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/* clipping rectangle. */
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rctf clip_rec;
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/* font dpi (default 72). */
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int dpi;
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/* font size. */
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int size;
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/* max texture size. */
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int max_tex_size;
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/* cache current OpenGL texture to save calls into the API */
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int tex_bind_state;
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/* font options. */
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int flags;
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/* list of glyph cache for this font. */
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ListBase cache;
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/* current glyph cache, size and dpi. */
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GlyphCacheBLF *glyph_cache;
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/* freetype2 lib handle. */
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FT_Library ft_lib;
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/* freetype2 face. */
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FT_Face face;
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/* for draw to buffer, always set this to NULL after finish! */
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float *b_fbuf;
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/* the same but unsigned char */
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unsigned char *b_cbuf;
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/* buffer size, keep signed so comparisons with negative values work */
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int bw;
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int bh;
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/* number of channels. */
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int bch;
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/* and the color, the alphas is get from the glyph! */
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float b_col[4];
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} FontBLF;
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typedef struct DirBLF {
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struct DirBLF *next;
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struct DirBLF *prev;
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/* full path where search fonts. */
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char *path;
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} DirBLF;
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#endif /* __BLF_INTERNAL_TYPES_H__ */
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