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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2013 Marek Olšák <maraeo@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.