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1 /* ===========================================================================
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2 * Freetype GL - A C OpenGL Freetype engine
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3 * Platform: Any
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4 * WWW: http://code.google.com/p/freetype-gl/
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5 * ----------------------------------------------------------------------------
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6 * Copyright 2011,2012 Nicolas P. Rougier. All rights reserved.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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10 *
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11 * 1. Redistributions of source code must retain the above copyright notice,
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12 * this list of conditions and the following disclaimer.
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13 *
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14 * 2. Redistributions in binary form must reproduce the above copyright
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15 * notice, this list of conditions and the following disclaimer in the
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16 * documentation and/or other materials provided with the distribution.
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17 *
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18 * THIS SOFTWARE IS PROVIDED BY NICOLAS P. ROUGIER ''AS IS'' AND ANY EXPRESS OR
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19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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20 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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21 * EVENT SHALL NICOLAS P. ROUGIER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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28 *
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29 * The views and conclusions contained in the software and documentation are
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30 * those of the authors and should not be interpreted as representing official
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31 * policies, either expressed or implied, of Nicolas P. Rougier.
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32 * ============================================================================
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33 */
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34 #include <ft2build.h>
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35 #include FT_FREETYPE_H
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36 #include FT_STROKER_H
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37 // #include FT_ADVANCES_H
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38 #include FT_LCD_FILTER_H
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39 #include <stdint.h>
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40 #include <stdlib.h>
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41 #include <stdio.h>
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42 #include <assert.h>
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43 #include <math.h>
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44 #include <wchar.h>
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45 #include "platform.h"
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46 #include "texture-font.h"
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47
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48 #undef __FTERRORS_H__
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49 #define FT_ERRORDEF( e, v, s ) { e, s },
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50 #define FT_ERROR_START_LIST {
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51 #define FT_ERROR_END_LIST { 0, 0 } };
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52 const struct {
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53 int code;
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54 const char* message;
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55 } FT_Errors[] =
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56 #include FT_ERRORS_H
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57
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58
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59
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60
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61 // ------------------------------------------------- texture_font_load_face ---
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62 int
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63 texture_font_load_face( FT_Library * library,
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64 const char * filename,
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65 const float size,
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66 FT_Face * face )
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67 {
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68 size_t hres = 64;
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69 FT_Error error;
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70 FT_Matrix matrix = { (int)((1.0/hres) * 0x10000L),
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71 (int)((0.0) * 0x10000L),
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72 (int)((0.0) * 0x10000L),
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73 (int)((1.0) * 0x10000L) };
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74
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75 assert( library );
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76 assert( filename );
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77 assert( size );
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78
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79 /* Initialize library */
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80 error = FT_Init_FreeType( library );
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81 if( error )
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82 {
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83 fprintf(stderr, "FT_Error (0x%02x) : %s\n",
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84 FT_Errors[error].code, FT_Errors[error].message);
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85 return 0;
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86 }
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87
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88 /* Load face */
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89 error = FT_New_Face( *library, filename, 0, face );
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90 if( error )
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91 {
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92 fprintf( stderr, "FT_Error (line %d, code 0x%02x) : %s\n",
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93 __LINE__, FT_Errors[error].code, FT_Errors[error].message);
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94 FT_Done_FreeType( *library );
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95 return 0;
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96 }
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97
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98 /* Select charmap */
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99 error = FT_Select_Charmap( *face, FT_ENCODING_UNICODE );
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100 if( error )
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101 {
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102 fprintf( stderr, "FT_Error (line %d, code 0x%02x) : %s\n",
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103 __LINE__, FT_Errors[error].code, FT_Errors[error].message );
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104 FT_Done_Face( *face );
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105 FT_Done_FreeType( *library );
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106 return 0;
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107 }
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108
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109 /* Set char size */
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110 error = FT_Set_Char_Size( *face, (int)(size*64), 0, 72*hres, 72 );
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111 if( error )
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112 {
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113 fprintf( stderr, "FT_Error (line %d, code 0x%02x) : %s\n",
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114 __LINE__, FT_Errors[error].code, FT_Errors[error].message );
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115 FT_Done_Face( *face );
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116 FT_Done_FreeType( *library );
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117 return 0;
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118 }
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119
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120 /* Set transform matrix */
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121 FT_Set_Transform( *face, &matrix, NULL );
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122
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123 return 1;
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124 }
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125
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126
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127 // ------------------------------------------------------ texture_glyph_new ---
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128 texture_glyph_t *
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129 texture_glyph_new( void )
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130 {
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131 texture_glyph_t *self = (texture_glyph_t *) malloc( sizeof(texture_glyph_t) );
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132 if( self == NULL)
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133 {
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134 fprintf( stderr,
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135 "line %d: No more memory for allocating data\n", __LINE__ );
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136 exit( EXIT_FAILURE );
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137 }
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138 self->id = 0;
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139 self->width = 0;
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140 self->height = 0;
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141 self->outline_type = 0;
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142 self->outline_thickness = 0.0;
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143 self->offset_x = 0;
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144 self->offset_y = 0;
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145 self->advance_x = 0.0;
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146 self->advance_y = 0.0;
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147 self->s0 = 0.0;
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148 self->t0 = 0.0;
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149 self->s1 = 0.0;
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150 self->t1 = 0.0;
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151 self->kerning = vector_new( sizeof(kerning_t) );
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152 return self;
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153 }
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154
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155
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156 // --------------------------------------------------- texture_glyph_delete ---
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157 void
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158 texture_glyph_delete( texture_glyph_t *self )
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159 {
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160 assert( self );
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161 vector_delete( self->kerning );
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162 free( self );
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163 }
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164
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165 // ---------------------------------------------- texture_glyph_get_kerning ---
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166 float
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167 texture_glyph_get_kerning( const texture_glyph_t * self,
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168 const wchar_t charcode )
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169 {
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170 size_t i;
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171
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172 assert( self );
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173 for( i=0; i<vector_size(self->kerning); ++i )
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174 {
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175 kerning_t * kerning = (kerning_t *) vector_get( self->kerning, i );
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176 if( kerning->charcode == charcode )
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177 {
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178 return kerning->kerning;
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179 }
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180 }
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181 return 0;
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182 }
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183
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184
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185 // ------------------------------------------ texture_font_generate_kerning ---
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186 void
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187 texture_font_generate_kerning( texture_font_t *self )
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188 {
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189 size_t i, j;
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190 FT_Library library;
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191 FT_Face face;
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192 FT_UInt glyph_index, prev_index;
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193 texture_glyph_t *glyph, *prev_glyph;
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194 FT_Vector kerning;
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195
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196 assert( self );
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197
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198 /* Load font */
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199 if( !texture_font_load_face( &library, self->filename, self->size, &face ) )
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200 {
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201 return;
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202 }
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203
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204 /* For each glyph couple combination, check if kerning is necessary */
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205 /* Starts at index 1 since 0 is for the special backgroudn glyph */
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206 for( i=1; i<self->glyphs->size; ++i )
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207 {
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208 glyph = *(texture_glyph_t **) vector_get( self->glyphs, i );
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209 glyph_index = FT_Get_Char_Index( face, glyph->charcode );
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210 vector_clear( glyph->kerning );
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211
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212 for( j=1; j<self->glyphs->size; ++j )
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213 {
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214 prev_glyph = *(texture_glyph_t **) vector_get( self->glyphs, j );
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215 prev_index = FT_Get_Char_Index( face, prev_glyph->charcode );
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216 FT_Get_Kerning( face, prev_index, glyph_index, FT_KERNING_UNFITTED, &kerning );
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217 // printf("%c(%d)-%c(%d): %ld\n",
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218 // prev_glyph->charcode, prev_glyph->charcode,
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219 // glyph_index, glyph_index, kerning.x);
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220 if( kerning.x )
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221 {
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222 // 64 * 64 because of 26.6 encoding AND the transform matrix used
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223 // in texture_font_load_face (hres = 64)
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224 kerning_t k = {prev_glyph->charcode, kerning.x / (float)(64.0f*64.0f)};
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225 vector_push_back( glyph->kerning, &k );
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226 }
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227 }
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228 }
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229 FT_Done_Face( face );
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230 FT_Done_FreeType( library );
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231 }
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232
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233
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234 // ------------------------------------------------------- texture_font_new ---
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235 texture_font_t *
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236 texture_font_new( texture_atlas_t * atlas,
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237 const char * filename,
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238 const float size)
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239 {
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240 texture_font_t *self = (texture_font_t *) malloc( sizeof(texture_font_t) );
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241 FT_Library library;
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242 FT_Face face;
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243 FT_Size_Metrics metrics;
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244
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245 assert( filename );
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246 assert( size );
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247
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248 if( self == NULL)
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249 {
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250 fprintf( stderr,
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251 "line %d: No more memory for allocating data\n", __LINE__ );
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252 exit( EXIT_FAILURE );
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253 }
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254 self->glyphs = vector_new( sizeof(texture_glyph_t *) );
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255 self->atlas = atlas;
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256 self->height = 0;
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257 self->ascender = 0;
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258 self->descender = 0;
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259 self->filename = strdup( filename );
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260 self->size = size;
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261 self->outline_type = 0;
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262 self->outline_thickness = 0.0;
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263 self->hinting = 1;
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264 self->kerning = 1;
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265 self->filtering = 1;
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266 // FT_LCD_FILTER_LIGHT is (0x00, 0x55, 0x56, 0x55, 0x00)
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267 // FT_LCD_FILTER_DEFAULT is (0x10, 0x40, 0x70, 0x40, 0x10)
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268 self->lcd_weights[0] = 0x10;
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269 self->lcd_weights[1] = 0x40;
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270 self->lcd_weights[2] = 0x70;
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271 self->lcd_weights[3] = 0x40;
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272 self->lcd_weights[4] = 0x10;
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273
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274 /* Get font metrics at high resolution */
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275
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276 if( !texture_font_load_face( &library, self->filename, self->size*100, &face ) )
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277 {
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278 return self;
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279 }
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280
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281 // 64 * 64 because of 26.6 encoding AND the transform matrix used
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282 // in texture_font_load_face (hres = 64)
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283 self->underline_position = face->underline_position / (float)(64.0f*64.0f) * self->size;
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284 self->underline_position = round( self->underline_position );
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285 if( self->underline_position > -2 )
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286 {
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287 self->underline_position = -2.0;
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288 }
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289
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290 self->underline_thickness = face->underline_thickness / (float)(64.0f*64.0f) * self->size;
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291 self->underline_thickness = round( self->underline_thickness );
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292 if( self->underline_thickness < 1 )
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293 {
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294 self->underline_thickness = 1.0;
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295 }
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296
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297 metrics = face->size->metrics;
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298 self->ascender = (metrics.ascender >> 6) / 100.0;
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299 self->descender = (metrics.descender >> 6) / 100.0;
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300 self->height = (metrics.height >> 6) / 100.0;
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301 self->linegap = self->height - self->ascender + self->descender;
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302 FT_Done_Face( face );
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303 FT_Done_FreeType( library );
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304
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305 /* -1 is a special glyph */
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306 texture_font_get_glyph( self, -1 );
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307
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308 return self;
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309 }
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310
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311
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312 // ---------------------------------------------------- texture_font_delete ---
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313 void
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314 texture_font_delete( texture_font_t *self )
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315 {
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316 size_t i;
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317 texture_glyph_t *glyph;
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318
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319 assert( self );
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320
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321 if( self->filename )
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322 {
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323 free( self->filename );
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324 }
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325
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326
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327 for( i=0; i<vector_size( self->glyphs ); ++i)
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328 {
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329 glyph = *(texture_glyph_t **) vector_get( self->glyphs, i );
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330 texture_glyph_delete( glyph);
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331 }
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332
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333 vector_delete( self->glyphs );
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334 free( self );
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335 }
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336
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337
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338 // ----------------------------------------------- texture_font_load_glyphs ---
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339 size_t
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340 texture_font_load_glyphs( texture_font_t * self,
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341 const wchar_t * charcodes )
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342 {
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343 size_t i, x, y, width, height, depth, w, h;
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344 FT_Library library;
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345 FT_Error error;
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346 FT_Face face;
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347 FT_Glyph ft_glyph;
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348 FT_GlyphSlot slot;
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349 FT_Bitmap ft_bitmap;
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350
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351 FT_UInt glyph_index;
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352 texture_glyph_t *glyph;
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353 ivec4 region;
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354 size_t missed = 0;
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355
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356 assert( self );
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357 assert( charcodes );
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358
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359
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360 width = self->atlas->width;
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361 height = self->atlas->height;
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362 depth = self->atlas->depth;
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363
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364 if( !texture_font_load_face( &library, self->filename, self->size, &face ) )
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365 {
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366 return wcslen(charcodes);
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367 }
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368
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369 /* Load each glyph */
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370 for( i=0; i<wcslen(charcodes); ++i )
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371 {
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372 FT_Int32 flags = 0;
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373 int ft_bitmap_width = 0;
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374 int ft_bitmap_rows = 0;
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375 int ft_bitmap_pitch = 0;
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376 int ft_glyph_top = 0;
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377 int ft_glyph_left = 0;
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378 glyph_index = FT_Get_Char_Index( face, charcodes[i] );
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379 // WARNING: We use texture-atlas depth to guess if user wants
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380 // LCD subpixel rendering
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381
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382 if( self->outline_type > 0 )
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383 {
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384 flags |= FT_LOAD_NO_BITMAP;
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385 }
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386 else
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387 {
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388 flags |= FT_LOAD_RENDER;
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389 }
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390
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391 if( !self->hinting )
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392 {
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393 flags |= FT_LOAD_NO_HINTING | FT_LOAD_NO_AUTOHINT;
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394 }
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395 else
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396 {
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397 flags |= FT_LOAD_FORCE_AUTOHINT;
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398 }
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399
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400
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401 if( depth == 3 )
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402 {
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403 FT_Library_SetLcdFilter( library, FT_LCD_FILTER_LIGHT );
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404 flags |= FT_LOAD_TARGET_LCD;
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405 if( self->filtering )
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406 {
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407 FT_Library_SetLcdFilterWeights( library, self->lcd_weights );
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408 }
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409 }
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410 error = FT_Load_Glyph( face, glyph_index, flags );
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411 if( error )
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412 {
|
|
|
413 fprintf( stderr, "FT_Error (line %d, code 0x%02x) : %s\n",
|
|
|
414 __LINE__, FT_Errors[error].code, FT_Errors[error].message );
|
|
|
415 FT_Done_Face( face );
|
|
|
416 FT_Done_FreeType( library );
|
|
|
417 return wcslen(charcodes)-i;
|
|
|
418 }
|
|
|
419
|
|
|
420
|
|
|
421 if( self->outline_type == 0 )
|
|
|
422 {
|
|
|
423 slot = face->glyph;
|
|
|
424 ft_bitmap = slot->bitmap;
|
|
|
425 ft_bitmap_width = slot->bitmap.width;
|
|
|
426 ft_bitmap_rows = slot->bitmap.rows;
|
|
|
427 ft_bitmap_pitch = slot->bitmap.pitch;
|
|
|
428 ft_glyph_top = slot->bitmap_top;
|
|
|
429 ft_glyph_left = slot->bitmap_left;
|
|
|
430 }
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|
|
431 else
|
|
|
432 {
|
|
|
433 FT_Stroker stroker;
|
|
|
434 FT_BitmapGlyph ft_bitmap_glyph;
|
|
|
435 error = FT_Stroker_New( library, &stroker );
|
|
|
436 if( error )
|
|
|
437 {
|
|
|
438 fprintf(stderr, "FT_Error (0x%02x) : %s\n",
|
|
|
439 FT_Errors[error].code, FT_Errors[error].message);
|
|
|
440 FT_Done_Face( face );
|
|
|
441 FT_Stroker_Done( stroker );
|
|
|
442 FT_Done_FreeType( library );
|
|
|
443 return 0;
|
|
|
444 }
|
|
|
445 FT_Stroker_Set( stroker,
|
|
|
446 (int)(self->outline_thickness *64),
|
|
|
447 FT_STROKER_LINECAP_ROUND,
|
|
|
448 FT_STROKER_LINEJOIN_ROUND,
|
|
|
449 0);
|
|
|
450 error = FT_Get_Glyph( face->glyph, &ft_glyph);
|
|
|
451 if( error )
|
|
|
452 {
|
|
|
453 fprintf(stderr, "FT_Error (0x%02x) : %s\n",
|
|
|
454 FT_Errors[error].code, FT_Errors[error].message);
|
|
|
455 FT_Done_Face( face );
|
|
|
456 FT_Stroker_Done( stroker );
|
|
|
457 FT_Done_FreeType( library );
|
|
|
458 return 0;
|
|
|
459 }
|
|
|
460
|
|
|
461 if( self->outline_type == 1 )
|
|
|
462 {
|
|
|
463 error = FT_Glyph_Stroke( &ft_glyph, stroker, 1 );
|
|
|
464 }
|
|
|
465 else if ( self->outline_type == 2 )
|
|
|
466 {
|
|
|
467 error = FT_Glyph_StrokeBorder( &ft_glyph, stroker, 0, 1 );
|
|
|
468 }
|
|
|
469 else if ( self->outline_type == 3 )
|
|
|
470 {
|
|
|
471 error = FT_Glyph_StrokeBorder( &ft_glyph, stroker, 1, 1 );
|
|
|
472 }
|
|
|
473 if( error )
|
|
|
474 {
|
|
|
475 fprintf(stderr, "FT_Error (0x%02x) : %s\n",
|
|
|
476 FT_Errors[error].code, FT_Errors[error].message);
|
|
|
477 FT_Done_Face( face );
|
|
|
478 FT_Stroker_Done( stroker );
|
|
|
479 FT_Done_FreeType( library );
|
|
|
480 return 0;
|
|
|
481 }
|
|
|
482
|
|
|
483 if( depth == 1)
|
|
|
484 {
|
|
|
485 error = FT_Glyph_To_Bitmap( &ft_glyph, FT_RENDER_MODE_NORMAL, 0, 1);
|
|
|
486 if( error )
|
|
|
487 {
|
|
|
488 fprintf(stderr, "FT_Error (0x%02x) : %s\n",
|
|
|
489 FT_Errors[error].code, FT_Errors[error].message);
|
|
|
490 FT_Done_Face( face );
|
|
|
491 FT_Stroker_Done( stroker );
|
|
|
492 FT_Done_FreeType( library );
|
|
|
493 return 0;
|
|
|
494 }
|
|
|
495 }
|
|
|
496 else
|
|
|
497 {
|
|
|
498 error = FT_Glyph_To_Bitmap( &ft_glyph, FT_RENDER_MODE_LCD, 0, 1);
|
|
|
499 if( error )
|
|
|
500 {
|
|
|
501 fprintf(stderr, "FT_Error (0x%02x) : %s\n",
|
|
|
502 FT_Errors[error].code, FT_Errors[error].message);
|
|
|
503 FT_Done_Face( face );
|
|
|
504 FT_Stroker_Done( stroker );
|
|
|
505 FT_Done_FreeType( library );
|
|
|
506 return 0;
|
|
|
507 }
|
|
|
508 }
|
|
|
509 ft_bitmap_glyph = (FT_BitmapGlyph) ft_glyph;
|
|
|
510 ft_bitmap = ft_bitmap_glyph->bitmap;
|
|
|
511 ft_bitmap_width = ft_bitmap.width;
|
|
|
512 ft_bitmap_rows = ft_bitmap.rows;
|
|
|
513 ft_bitmap_pitch = ft_bitmap.pitch;
|
|
|
514 ft_glyph_top = ft_bitmap_glyph->top;
|
|
|
515 ft_glyph_left = ft_bitmap_glyph->left;
|
|
|
516 FT_Stroker_Done(stroker);
|
|
|
517 }
|
|
|
518
|
|
|
519
|
|
|
520 // We want each glyph to be separated by at least one black pixel
|
|
|
521 // (for example for shader used in demo-subpixel.c)
|
|
|
522 w = ft_bitmap_width/depth + 1;
|
|
|
523 h = ft_bitmap_rows + 1;
|
|
|
524 region = texture_atlas_get_region( self->atlas, w, h );
|
|
|
525 if ( region.x < 0 )
|
|
|
526 {
|
|
|
527 missed++;
|
|
|
528 fprintf( stderr, "Texture atlas is full (line %d)\n", __LINE__ );
|
|
|
529 continue;
|
|
|
530 }
|
|
|
531 w = w - 1;
|
|
|
532 h = h - 1;
|
|
|
533 x = region.x;
|
|
|
534 y = region.y;
|
|
|
535 texture_atlas_set_region( self->atlas, x, y, w, h,
|
|
|
536 ft_bitmap.buffer, ft_bitmap.pitch );
|
|
|
537
|
|
|
538 glyph = texture_glyph_new( );
|
|
|
539 glyph->charcode = charcodes[i];
|
|
|
540 glyph->width = w;
|
|
|
541 glyph->height = h;
|
|
|
542 glyph->outline_type = self->outline_type;
|
|
|
543 glyph->outline_thickness = self->outline_thickness;
|
|
|
544 glyph->offset_x = ft_glyph_left;
|
|
|
545 glyph->offset_y = ft_glyph_top;
|
|
|
546 glyph->s0 = x/(float)width;
|
|
|
547 glyph->t0 = y/(float)height;
|
|
|
548 glyph->s1 = (x + glyph->width)/(float)width;
|
|
|
549 glyph->t1 = (y + glyph->height)/(float)height;
|
|
|
550
|
|
|
551 // Discard hinting to get advance
|
|
|
552 FT_Load_Glyph( face, glyph_index, FT_LOAD_RENDER | FT_LOAD_NO_HINTING);
|
|
|
553 slot = face->glyph;
|
|
|
554 glyph->advance_x = slot->advance.x/64.0;
|
|
|
555 glyph->advance_y = slot->advance.y/64.0;
|
|
|
556
|
|
|
557 vector_push_back( self->glyphs, &glyph );
|
|
|
558
|
|
|
559 if( self->outline_type > 0 )
|
|
|
560 {
|
|
|
561 FT_Done_Glyph( ft_glyph );
|
|
|
562 }
|
|
|
563 }
|
|
|
564 FT_Done_Face( face );
|
|
|
565 FT_Done_FreeType( library );
|
|
|
566 texture_atlas_upload( self->atlas );
|
|
|
567 texture_font_generate_kerning( self );
|
|
|
568 return missed;
|
|
|
569 }
|
|
|
570
|
|
|
571
|
|
|
572 // ------------------------------------------------- texture_font_get_glyph ---
|
|
|
573 texture_glyph_t *
|
|
|
574 texture_font_get_glyph( texture_font_t * self,
|
|
|
575 wchar_t charcode )
|
|
|
576 {
|
|
|
577 size_t i;
|
|
|
578 wchar_t buffer[2] = {0,0};
|
|
|
579 texture_glyph_t *glyph;
|
|
|
580
|
|
|
581 assert( self );
|
|
|
582
|
|
|
583 assert( self );
|
|
|
584 assert( self->filename );
|
|
|
585 assert( self->atlas );
|
|
|
586
|
|
|
587 /* Check if charcode has been already loaded */
|
|
|
588 for( i=0; i<self->glyphs->size; ++i )
|
|
|
589 {
|
|
|
590 glyph = *(texture_glyph_t **) vector_get( self->glyphs, i );
|
|
|
591 // If charcode is -1, we don't care about outline type or thickness
|
|
|
592 if( (glyph->charcode == charcode) &&
|
|
|
593 ((charcode == (wchar_t)(-1) ) ||
|
|
|
594 ((glyph->outline_type == self->outline_type) &&
|
|
|
595 (glyph->outline_thickness == self->outline_thickness)) ))
|
|
|
596 {
|
|
|
597 return glyph;
|
|
|
598 }
|
|
|
599 }
|
|
|
600
|
|
|
601 /* charcode -1 is special : it is used for line drawing (overline,
|
|
|
602 * underline, strikethrough) and background.
|
|
|
603 */
|
|
|
604 if( charcode == (wchar_t)(-1) )
|
|
|
605 {
|
|
|
606 size_t width = self->atlas->width;
|
|
|
607 size_t height = self->atlas->height;
|
|
|
608 ivec4 region = texture_atlas_get_region( self->atlas, 5, 5 );
|
|
|
609 texture_glyph_t * glyph = texture_glyph_new( );
|
|
|
610 static unsigned char data[4*4*3] = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
|
|
|
611 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
|
|
|
612 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
|
|
|
613 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
|
|
|
614 if ( region.x < 0 )
|
|
|
615 {
|
|
|
616 fprintf( stderr, "Texture atlas is full (line %d)\n", __LINE__ );
|
|
|
617 return NULL;
|
|
|
618 }
|
|
|
619 texture_atlas_set_region( self->atlas, region.x, region.y, 4, 4, data, 0 );
|
|
|
620 glyph->charcode = (wchar_t)(-1);
|
|
|
621 glyph->s0 = (region.x+2)/(float)width;
|
|
|
622 glyph->t0 = (region.y+2)/(float)height;
|
|
|
623 glyph->s1 = (region.x+3)/(float)width;
|
|
|
624 glyph->t1 = (region.y+3)/(float)height;
|
|
|
625 vector_push_back( self->glyphs, &glyph );
|
|
|
626 return glyph; //*(texture_glyph_t **) vector_back( self->glyphs );
|
|
|
627 }
|
|
|
628
|
|
|
629 /* Glyph has not been already loaded */
|
|
|
630 buffer[0] = charcode;
|
|
|
631 if( texture_font_load_glyphs( self, buffer ) == 0 )
|
|
|
632 {
|
|
|
633 return *(texture_glyph_t **) vector_back( self->glyphs );
|
|
|
634 }
|
|
|
635 return NULL;
|
|
|
636 }
|
|
|
637
|
|
|
638
|
