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      1 /**************************************************************************
      2  *
      3  * Copyright 2013 Marek Olk <maraeo (at) gmail.com>
      4  * All Rights Reserved.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the
      8  * "Software"), to deal in the Software without restriction, including
      9  * without limitation the rights to use, copy, modify, merge, publish,
     10  * distribute, sub license, and/or sell copies of the Software, and to
     11  * permit persons to whom the Software is furnished to do so, subject to
     12  * the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial portions
     16  * of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
     21  * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
     22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  **************************************************************************/
     27 
     28 #ifndef FONT_H
     29 #define FONT_H
     30 
     31 #include "pipe/p_compiler.h"
     32 
     33 struct pipe_resource;
     34 struct pipe_context;
     35 
     36 enum util_font_name {
     37    UTIL_FONT_FIXED_8X13
     38 };
     39 
     40 /* The font is stored in a RECT texture. There are 256 glyphs
     41  * drawn in a 16x16 matrix. The texture coordinates of a glyph
     42  * within the matrix should be calculated as follows:
     43  *
     44  *    x1 = (glyph % 16) * glyph_width;
     45  *    y1 = (glyph / 16) * glyph_height;
     46  *    x2 = x1 + glyph_width;
     47  *    y2 = y1 + glyph_height;
     48  */
     49 struct util_font {
     50    struct pipe_resource *texture;
     51    unsigned glyph_width;
     52    unsigned glyph_height;
     53 };
     54 
     55 boolean
     56 util_font_create(struct pipe_context *pipe, enum util_font_name name,
     57                          struct util_font *out_font);
     58 
     59 #endif
     60