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Rev | Author | Line No. | Line |
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5131 | clevermous | 1 | |
2 | #include |
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3 | #include |
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4 | #include |
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5 | #include |
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6 | |||
7 | |||
8 | |||
9 | |||
10 | #include "SDL_ttf.h" |
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11 | |||
12 | |||
13 | #define UNICODE(c) c |
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14 | |||
15 | |||
16 | static int round(float x) |
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17 | { |
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18 | int value; |
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19 | |||
20 | |||
21 | if ( x > value ) { |
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22 | value = value + 1; |
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23 | } else |
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24 | if ( x < value ) { |
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25 | value = value - 1; |
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26 | } |
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27 | return value; |
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28 | } |
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29 | |||
30 | |||
31 | struct glyph { |
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32 | int cached; |
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33 | TT_Raster_Map bitmap; |
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34 | TT_Raster_Map pixmap; |
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35 | int minx; |
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36 | int maxx; |
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37 | int miny; |
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38 | int maxy; |
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39 | int advance; |
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40 | }; |
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41 | |||
42 | |||
43 | struct _TTF_Font { |
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44 | TT_Face face; |
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45 | TT_Instance inst; |
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46 | TT_Glyph glyph; |
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47 | TT_CharMap map; |
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48 | |||
49 | |||
50 | int pointsize; |
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51 | int height; /* ascent - descent */ |
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52 | float ascent; |
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53 | float descent; |
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54 | float lineskip; |
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55 | |||
56 | |||
57 | int style; |
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58 | |||
59 | |||
60 | int glyph_overhang; |
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61 | float glyph_italics; |
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62 | |||
63 | |||
64 | struct glyph *current; |
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65 | struct glyph cache[256]; |
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66 | struct glyph scratch; |
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67 | }; |
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68 | |||
69 | |||
70 | static TT_Engine engine; |
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71 | |||
72 | |||
73 | { |
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74 | int error; |
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75 | |||
76 | |||
77 | if ( error ) { |
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78 | SDL_SetError("Couldn't init FreeType engine"); |
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79 | return(-1); |
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80 | } |
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81 | return(0); |
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82 | } |
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83 | |||
84 | |||
85 | { |
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86 | TTF_Font *font; |
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87 | TT_Face_Properties properties; |
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88 | TT_Instance_Metrics imetrics; |
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89 | int i, n; |
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90 | TT_UShort platform, encoding; |
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91 | TT_Error error; |
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92 | |||
93 | |||
94 | if ( font == NULL ) { |
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95 | SDL_SetError("Out of memory"); |
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96 | return(NULL); |
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97 | } |
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98 | memset(font, 0, sizeof(*font)); |
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99 | |||
100 | |||
101 | error = TT_Open_Face(engine, file, &font->face); |
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102 | if ( error ) { |
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103 | SDL_SetError("Couldn't load font file"); |
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104 | free(font); |
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105 | return(NULL); |
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106 | } |
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107 | error = TT_New_Glyph(font->face, &font->glyph); |
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108 | if ( error ) { |
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109 | SDL_SetError("Couldn't create glyph container"); |
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110 | TTF_CloseFont(font); |
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111 | return(NULL); |
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112 | } |
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113 | error = TT_New_Instance(font->face, &font->inst); |
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114 | if ( error ) { |
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115 | SDL_SetError("Couldn't create font instance"); |
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116 | TTF_CloseFont(font); |
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117 | return(NULL); |
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118 | } |
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119 | |||
120 | |||
121 | error = TT_Set_Instance_Resolutions(font->inst, 72, 72); |
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122 | if ( error ) { |
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123 | SDL_SetError("Couldn't set font resolution"); |
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124 | TTF_CloseFont(font); |
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125 | return(NULL); |
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126 | } |
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127 | error = TT_Set_Instance_CharSize(font->inst, ptsize*64); |
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128 | if ( error ) { |
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129 | SDL_SetError("Couldn't set font size"); |
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130 | TTF_CloseFont(font); |
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131 | return(NULL); |
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132 | } |
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133 | |||
134 | |||
135 | n = TT_Get_CharMap_Count(font->face); |
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136 | for ( i=0; i |
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137 | TT_Get_CharMap_ID(font->face, i, &platform, &encoding); |
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138 | if ( ((platform == TT_PLATFORM_MICROSOFT) && |
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139 | (encoding == TT_MS_ID_UNICODE_CS)) || |
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140 | ((platform == TT_PLATFORM_APPLE_UNICODE) && |
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141 | (encoding == TT_APPLE_ID_DEFAULT)) ) { |
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142 | TT_Get_CharMap(font->face, i, &font->map); |
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143 | break; |
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144 | } |
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145 | } |
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146 | if ( i == n ) { |
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147 | SDL_SetError("Font doesn't have a Unicode mapping"); |
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148 | TTF_CloseFont(font); |
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149 | return(NULL); |
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150 | } |
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151 | |||
152 | |||
153 | TT_Get_Face_Properties(font->face, &properties ); |
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154 | TT_Get_Instance_Metrics(font->inst, &imetrics); |
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155 | font->pointsize = imetrics.y_ppem; |
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156 | font->ascent = (float)properties.horizontal->Ascender / |
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157 | properties.header->Units_Per_EM; |
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158 | font->ascent *= font->pointsize; |
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159 | font->descent = (float)properties.horizontal->Descender / |
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160 | properties.header->Units_Per_EM; |
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161 | font->descent *= font->pointsize; |
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162 | font->lineskip = (float)properties.horizontal->Line_Gap / |
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163 | properties.header->Units_Per_EM; |
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164 | font->lineskip *= font->pointsize; |
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165 | font->height = round(font->ascent - font->descent); |
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166 | |||
167 | |||
168 | font->style = TTF_STYLE_NORMAL; |
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169 | font->glyph_overhang = font->pointsize/10; |
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170 | /* x offset = cos(((90.0-12)/360)*2*M_PI), or 12 degree angle */ |
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171 | font->glyph_italics = 0.207; |
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172 | font->glyph_italics *= font->height; |
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173 | |||
174 | |||
175 | } |
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176 | |||
177 | |||
178 | { |
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179 | if ( glyph->bitmap.bitmap ) { |
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180 | free(glyph->bitmap.bitmap); |
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181 | glyph->bitmap.bitmap = 0; |
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182 | } |
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183 | if ( glyph->pixmap.bitmap ) { |
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184 | free(glyph->pixmap.bitmap); |
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185 | glyph->pixmap.bitmap = 0; |
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186 | } |
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187 | glyph->cached = 0; |
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188 | } |
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189 | |||
190 | |||
191 | { |
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192 | int i; |
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193 | |||
194 | |||
195 | if ( font->cache[i].cached ) { |
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196 | Flush_Glyph(&font->cache[i]); |
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197 | } |
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198 | } |
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199 | if ( font->scratch.cached ) { |
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200 | Flush_Glyph(&font->scratch); |
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201 | } |
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202 | } |
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203 | |||
204 | |||
205 | { |
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206 | TT_UShort index; |
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207 | TT_Glyph_Metrics metrics; |
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208 | TT_Outline outline; |
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209 | int x_offset; |
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210 | int y_offset; |
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211 | TT_Error error; |
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212 | |||
213 | |||
214 | index = TT_Char_Index(font->map, UNICODE(ch)); |
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215 | error = TT_Load_Glyph(font->inst, font->glyph, index, TTLOAD_DEFAULT); |
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216 | if ( error ) return error; |
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217 | |||
218 | |||
219 | TT_Get_Glyph_Metrics(font->glyph, &metrics); |
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220 | glyph->minx = (metrics.bbox.xMin & -64) / 64; |
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221 | glyph->maxx = ((metrics.bbox.xMax + 63) & -64) / 64; |
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222 | glyph->miny = (metrics.bbox.yMin & -64) / 64; |
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223 | glyph->maxy = ((metrics.bbox.yMax + 63) & -64) / 64; |
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224 | glyph->advance = (metrics.advance & -64) / 64; |
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225 | |||
226 | |||
227 | if ( font->style & TTF_STYLE_BOLD ) { |
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228 | glyph->maxx += font->glyph_overhang; |
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229 | } |
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230 | if ( font->style & TTF_STYLE_ITALIC ) { |
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231 | glyph->maxx += round(font->glyph_italics); |
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232 | } |
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233 | |||
234 | |||
235 | glyph->bitmap.width = ((glyph->maxx - glyph->minx) + 7) & ~7; |
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236 | glyph->bitmap.rows = font->height; |
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237 | glyph->bitmap.cols = glyph->bitmap.width/8; |
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238 | glyph->bitmap.flow = TT_Flow_Down; |
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239 | glyph->bitmap.size = (glyph->bitmap.rows * glyph->bitmap.cols); |
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240 | if ( glyph->bitmap.size ) { |
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241 | glyph->bitmap.bitmap = malloc(glyph->bitmap.size); |
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242 | if ( ! glyph->bitmap.bitmap ) { |
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243 | error = TT_Err_Out_Of_Memory; |
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244 | goto was_error; |
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245 | } |
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246 | memset(glyph->bitmap.bitmap, 0, glyph->bitmap.size); |
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247 | } else { |
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248 | glyph->bitmap.bitmap = 0; |
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249 | } |
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250 | |||
251 | |||
252 | glyph->pixmap.width = ((glyph->maxx - glyph->minx) + 3) & ~3; |
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253 | glyph->pixmap.rows = font->height; |
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254 | glyph->pixmap.cols = glyph->pixmap.width; |
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255 | glyph->pixmap.flow = TT_Flow_Down; |
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256 | glyph->pixmap.size = (glyph->pixmap.rows * glyph->pixmap.cols); |
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257 | if ( glyph->pixmap.size ) { |
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258 | glyph->pixmap.bitmap = malloc(glyph->pixmap.size); |
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259 | if ( ! glyph->pixmap.bitmap ) { |
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260 | error = TT_Err_Out_Of_Memory; |
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261 | goto was_error; |
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262 | } |
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263 | memset(glyph->pixmap.bitmap, 0, glyph->pixmap.size); |
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264 | } else { |
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265 | glyph->pixmap.bitmap = 0; |
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266 | } |
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267 | |||
268 | |||
269 | error = TT_Get_Glyph_Outline(font->glyph, &outline); |
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270 | /* Handle the italic style */ |
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271 | if ( font->style & TTF_STYLE_ITALIC ) { |
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272 | TT_Matrix shear; |
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273 | |||
274 | |||
275 | shear.xy = (int)(font->glyph_italics*(1<<16))/font->height; |
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276 | shear.yx = 0; |
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277 | shear.yy = 1<<16; |
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278 | TT_Transform_Outline(&outline, &shear); |
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279 | } |
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280 | x_offset = -glyph->minx * 64; |
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281 | y_offset = -round(font->descent) * 64; |
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282 | TT_Translate_Outline(&outline, x_offset, y_offset); |
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283 | error += TT_Get_Outline_Bitmap(engine, &outline, &glyph->bitmap); |
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284 | error += TT_Get_Outline_Pixmap(engine, &outline, &glyph->pixmap); |
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285 | /* Handle the bold style */ |
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286 | if ( font->style & TTF_STYLE_BOLD ) { |
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287 | int row, col; |
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288 | int offset; |
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289 | int pixel; |
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290 | Uint8 *pixmap; |
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291 | |||
292 | |||
293 | for ( offset=0; offset < font->glyph_overhang; ++offset ) { |
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294 | TT_Translate_Outline(&outline, 64, 0); |
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295 | error += TT_Get_Outline_Bitmap(engine, |
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296 | &outline,&glyph->bitmap); |
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297 | } |
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298 | x_offset += font->glyph_overhang*64; |
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299 | |||
300 | |||
301 | for ( row=glyph->pixmap.rows-1; row >= 0; --row ) { |
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302 | pixmap = (Uint8 *)glyph->pixmap.bitmap + |
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303 | row*glyph->pixmap.cols; |
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304 | for (offset=1; offset<=font->glyph_overhang; ++offset) { |
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305 | for (col=glyph->pixmap.cols-1; col > 0; --col) { |
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306 | pixel=(pixmap[col]+pixmap[col-1]); |
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307 | if ( pixel > 4 ) { |
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308 | pixel = 4; |
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309 | } |
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310 | pixmap[col] = (Uint8)pixel; |
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311 | } |
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312 | } |
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313 | } |
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314 | } |
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315 | TT_Translate_Outline(&outline, -x_offset, -y_offset); |
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316 | was_error: |
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317 | if ( error ) { |
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318 | if ( glyph->bitmap.bitmap ) { |
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319 | free(glyph->bitmap.bitmap); |
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320 | glyph->bitmap.bitmap = 0; |
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321 | } |
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322 | if ( glyph->pixmap.bitmap ) { |
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323 | free(glyph->pixmap.bitmap); |
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324 | glyph->pixmap.bitmap = 0; |
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325 | } |
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326 | return error; |
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327 | } |
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328 | |||
329 | |||
330 | glyph->cached = ch; |
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331 | return TT_Err_Ok; |
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332 | } |
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333 | |||
334 | |||
335 | { |
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336 | int retval; |
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337 | |||
338 | |||
339 | if ( ch < 256 ) { |
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340 | font->current = &font->cache[ch]; |
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341 | } else { |
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342 | if ( font->scratch.cached != ch ) { |
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343 | Flush_Glyph(&font->scratch); |
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344 | } |
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345 | font->current = &font->scratch; |
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346 | } |
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347 | if ( ! font->current->cached ) { |
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348 | retval = Load_Glyph(font, ch, font->current); |
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349 | } |
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350 | return retval; |
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351 | } |
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352 | |||
353 | |||
354 | { |
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355 | Flush_Cache(font); |
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356 | TT_Close_Face(font->face); |
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357 | free(font); |
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358 | } |
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359 | |||
360 | |||
361 | { |
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362 | int i; |
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363 | |||
364 | |||
365 | unicode[i] = ((const unsigned char *)text)[i]; |
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366 | } |
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367 | unicode[i] = 0; |
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368 | |||
369 | |||
370 | } |
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371 | |||
372 | |||
373 | { |
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374 | int i, j; |
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375 | Uint16 ch; |
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376 | |||
377 | |||
378 | ch = ((const unsigned char *)utf8)[i]; |
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379 | if ( ch >= 0xF0 ) { |
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380 | ch = (Uint16)(utf8[i]&0x07) << 18; |
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381 | ch |= (Uint16)(utf8[++i]&0x3F) << 12; |
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382 | ch |= (Uint16)(utf8[++i]&0x3F) << 6; |
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383 | ch |= (Uint16)(utf8[++i]&0x3F); |
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384 | } else |
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385 | if ( ch >= 0xE0 ) { |
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386 | ch = (Uint16)(utf8[i]&0x3F) << 12; |
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387 | ch |= (Uint16)(utf8[++i]&0x3F) << 6; |
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388 | ch |= (Uint16)(utf8[++i]&0x3F); |
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389 | } else |
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390 | if ( ch >= 0xC0 ) { |
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391 | ch = (Uint16)(utf8[i]&0x3F) << 6; |
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392 | ch |= (Uint16)(utf8[++i]&0x3F); |
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393 | } |
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394 | unicode[j] = ch; |
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395 | } |
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396 | unicode[j] = 0; |
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397 | |||
398 | |||
399 | } |
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400 | |||
401 | |||
402 | { |
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403 | return(font->height); |
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404 | } |
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405 | |||
406 | |||
407 | { |
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408 | return(round(font->ascent)); |
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409 | } |
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410 | |||
411 | |||
412 | { |
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413 | return(round(font->descent)); |
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414 | } |
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415 | |||
416 | |||
417 | { |
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418 | return(round(font->lineskip)); |
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419 | } |
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420 | |||
421 | |||
422 | int* minx, int* maxx, int* miny, int* maxy, int* advance) |
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423 | { |
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424 | TT_Error error; |
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425 | |||
426 | |||
427 | |||
428 | |||
429 | return -1; |
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430 | } |
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431 | |||
432 | |||
433 | *minx = font->current->minx; |
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434 | } |
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435 | if ( maxx ) { |
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436 | *maxx = font->current->maxx; |
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437 | } |
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438 | if ( miny ) { |
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439 | *miny = font->current->miny; |
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440 | } |
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441 | if ( maxy ) { |
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442 | *maxy = font->current->maxy; |
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443 | } |
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444 | if ( advance ) { |
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445 | *advance = font->current->advance; |
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446 | } |
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447 | return 0; |
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448 | } |
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449 | |||
450 | |||
451 | { |
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452 | Uint16 *unicode_text; |
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453 | int unicode_len; |
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454 | int status; |
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455 | |||
456 | |||
457 | unicode_len = strlen(text); |
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458 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
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459 | if ( unicode_text == NULL ) { |
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460 | SDL_SetError("Out of memory"); |
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461 | return -1; |
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462 | } |
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463 | ASCII_to_UNICODE(unicode_text, text, unicode_len); |
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464 | |||
465 | |||
466 | status = TTF_SizeUNICODE(font, unicode_text, w, h); |
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467 | |||
468 | |||
469 | free(unicode_text); |
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470 | return status; |
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471 | } |
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472 | |||
473 | |||
474 | { |
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475 | Uint16 *unicode_text; |
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476 | int unicode_len; |
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477 | int status; |
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478 | |||
479 | |||
480 | unicode_len = strlen(text); |
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481 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
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482 | if ( unicode_text == NULL ) { |
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483 | SDL_SetError("Out of memory"); |
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484 | return -1; |
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485 | } |
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486 | UTF8_to_UNICODE(unicode_text, text, unicode_len); |
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487 | |||
488 | |||
489 | status = TTF_SizeUNICODE(font, unicode_text, w, h); |
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490 | |||
491 | |||
492 | free(unicode_text); |
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493 | return status; |
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494 | } |
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495 | |||
496 | |||
497 | { |
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498 | int status; |
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499 | const Uint16 *ch; |
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500 | int x, z, minx, maxx; |
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501 | TT_Error error; |
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502 | |||
503 | |||
504 | status = 0; |
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505 | minx = maxx = 0; |
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506 | |||
507 | |||
508 | x= 0; |
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509 | for ( ch=text; *ch; ++ch ) { |
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510 | error = Find_Glyph(font, *ch); |
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511 | if ( ! error ) { |
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512 | z = x + font->current->minx; |
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513 | if ( minx > z ) { |
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514 | minx = z; |
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515 | } |
||
516 | if ( font->style & TTF_STYLE_BOLD ) { |
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517 | x += font->glyph_overhang; |
||
518 | } |
||
519 | if ( font->current->advance > font->current->maxx ) { |
||
520 | z = x + font->current->advance; |
||
521 | } else { |
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522 | z = x + font->current->maxx; |
||
523 | } |
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524 | if ( maxx < z ) { |
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525 | maxx = z; |
||
526 | } |
||
527 | x += font->current->advance; |
||
528 | } |
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529 | } |
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530 | |||
531 | |||
532 | if ( w ) { |
||
533 | *w = (maxx - minx); |
||
534 | } |
||
535 | if ( h ) { |
||
536 | *h = font->height; |
||
537 | } |
||
538 | return status; |
||
539 | } |
||
540 | |||
541 | |||
542 | */ |
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543 | SDL_Surface *TTF_RenderText_Solid(TTF_Font *font, |
||
544 | const char *text, SDL_Color fg) |
||
545 | { |
||
546 | SDL_Surface *textbuf; |
||
547 | Uint16 *unicode_text; |
||
548 | int unicode_len; |
||
549 | |||
550 | |||
551 | unicode_len = strlen(text); |
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552 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
||
553 | if ( unicode_text == NULL ) { |
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554 | SDL_SetError("Out of memory"); |
||
555 | return(NULL); |
||
556 | } |
||
557 | ASCII_to_UNICODE(unicode_text, text, unicode_len); |
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558 | |||
559 | |||
560 | textbuf = TTF_RenderUNICODE_Solid(font, unicode_text, fg); |
||
561 | |||
562 | |||
563 | free(unicode_text); |
||
564 | return(textbuf); |
||
565 | } |
||
566 | |||
567 | |||
568 | */ |
||
569 | SDL_Surface *TTF_RenderUTF8_Solid(TTF_Font *font, |
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570 | const char *text, SDL_Color fg) |
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571 | { |
||
572 | SDL_Surface *textbuf; |
||
573 | Uint16 *unicode_text; |
||
574 | int unicode_len; |
||
575 | |||
576 | |||
577 | unicode_len = strlen(text); |
||
578 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
||
579 | if ( unicode_text == NULL ) { |
||
580 | SDL_SetError("Out of memory"); |
||
581 | return(NULL); |
||
582 | } |
||
583 | UTF8_to_UNICODE(unicode_text, text, unicode_len); |
||
584 | |||
585 | |||
586 | textbuf = TTF_RenderUNICODE_Solid(font, unicode_text, fg); |
||
587 | |||
588 | |||
589 | free(unicode_text); |
||
590 | return(textbuf); |
||
591 | } |
||
592 | |||
593 | |||
594 | const Uint16 *text, SDL_Color fg) |
||
595 | { |
||
596 | int xstart, width; |
||
597 | int w, h; |
||
598 | SDL_Surface *textbuf; |
||
599 | SDL_Palette *palette; |
||
600 | const Uint16 *ch; |
||
601 | Uint8 *src, *dst; |
||
602 | int row, col; |
||
603 | TT_Error error; |
||
604 | |||
605 | |||
606 | if ( (TTF_SizeUNICODE(font, text, &w, &h) < 0) || !w ) { |
||
607 | TTF_SetError("Text has zero width"); |
||
608 | return(NULL); |
||
609 | } |
||
610 | |||
611 | |||
612 | width = w; |
||
613 | w = (w+7)&~7; |
||
614 | textbuf = SDL_AllocSurface(SDL_SWSURFACE, w, h, 8, 0, 0, 0, 0); |
||
615 | if ( textbuf == NULL ) { |
||
616 | return(NULL); |
||
617 | } |
||
618 | |||
619 | |||
620 | palette = textbuf->format->palette; |
||
621 | palette->colors[0].r = 255-fg.r; |
||
622 | palette->colors[0].g = 255-fg.g; |
||
623 | palette->colors[0].b = 255-fg.b; |
||
624 | palette->colors[1].r = fg.r; |
||
625 | palette->colors[1].g = fg.g; |
||
626 | palette->colors[1].b = fg.b; |
||
627 | SDL_SetColorKey(textbuf, SDL_SRCCOLORKEY, 0); |
||
628 | |||
629 | |||
630 | xstart = 0; |
||
631 | for ( ch=text; *ch; ++ch ) { |
||
632 | error = Find_Glyph(font, *ch); |
||
633 | if ( ! error ) { |
||
634 | w = font->current->bitmap.width; |
||
635 | src = (Uint8 *)font->current->bitmap.bitmap; |
||
636 | for ( row = 0; row < h; ++row ) { |
||
637 | dst = (Uint8 *)textbuf->pixels + |
||
638 | row * textbuf->pitch + |
||
639 | xstart + font->current->minx; |
||
640 | for ( col = 0; col < w; col += 8 ) { |
||
641 | Uint8 c = *src++; |
||
642 | *dst++ |= (c&0x80)>>7; |
||
643 | c <<= 1; |
||
644 | *dst++ |= (c&0x80)>>7; |
||
645 | c <<= 1; |
||
646 | *dst++ |= (c&0x80)>>7; |
||
647 | c <<= 1; |
||
648 | *dst++ |= (c&0x80)>>7; |
||
649 | c <<= 1; |
||
650 | *dst++ |= (c&0x80)>>7; |
||
651 | c <<= 1; |
||
652 | *dst++ |= (c&0x80)>>7; |
||
653 | c <<= 1; |
||
654 | *dst++ |= (c&0x80)>>7; |
||
655 | c <<= 1; |
||
656 | *dst++ |= (c&0x80)>>7; |
||
657 | } |
||
658 | } |
||
659 | xstart += font->current->advance; |
||
660 | if ( font->style & TTF_STYLE_BOLD ) { |
||
661 | xstart += font->glyph_overhang; |
||
662 | } |
||
663 | } |
||
664 | } |
||
665 | /* Handle the underline style */ |
||
666 | if ( font->style & TTF_STYLE_UNDERLINE ) { |
||
667 | int row_offset; |
||
668 | |||
669 | |||
670 | if ( row_offset > font->height ) { |
||
671 | row_offset = font->height-1; |
||
672 | } |
||
673 | memset((Uint8 *)textbuf->pixels+row_offset*textbuf->pitch, |
||
674 | 1, width); |
||
675 | } |
||
676 | return(textbuf); |
||
677 | } |
||
678 | |||
679 | |||
680 | { |
||
681 | SDL_Surface *textbuf; |
||
682 | SDL_Palette *palette; |
||
683 | Uint8 *src, *dst; |
||
684 | int row, col; |
||
685 | TT_Error error; |
||
686 | struct glyph *glyph; |
||
687 | |||
688 | |||
689 | error = Find_Glyph(font, ch); |
||
690 | if ( error ) { |
||
691 | return(NULL); |
||
692 | } |
||
693 | glyph = font->current; |
||
694 | |||
695 | |||
696 | textbuf = SDL_CreateRGBSurface(SDL_SWSURFACE, |
||
697 | glyph->bitmap.width, glyph->bitmap.rows, 8, 0, 0, 0, 0); |
||
698 | if ( ! textbuf ) { |
||
699 | return(NULL); |
||
700 | } |
||
701 | |||
702 | |||
703 | palette = textbuf->format->palette; |
||
704 | palette->colors[0].r = 255-fg.r; |
||
705 | palette->colors[0].g = 255-fg.g; |
||
706 | palette->colors[0].b = 255-fg.b; |
||
707 | palette->colors[1].r = fg.r; |
||
708 | palette->colors[1].g = fg.g; |
||
709 | palette->colors[1].b = fg.b; |
||
710 | SDL_SetColorKey(textbuf, SDL_SRCCOLORKEY, 0); |
||
711 | |||
712 | |||
713 | src = (Uint8 *)font->current->bitmap.bitmap; |
||
714 | for ( row = 0; row < textbuf->h; ++row ) { |
||
715 | dst = (Uint8 *)textbuf->pixels + row * textbuf->pitch; |
||
716 | for ( col = 0; col < textbuf->w; col += 8 ) { |
||
717 | Uint8 c = *src++; |
||
718 | *dst++ |= (c&0x80)>>7; |
||
719 | c <<= 1; |
||
720 | *dst++ |= (c&0x80)>>7; |
||
721 | c <<= 1; |
||
722 | *dst++ |= (c&0x80)>>7; |
||
723 | c <<= 1; |
||
724 | *dst++ |= (c&0x80)>>7; |
||
725 | c <<= 1; |
||
726 | *dst++ |= (c&0x80)>>7; |
||
727 | c <<= 1; |
||
728 | *dst++ |= (c&0x80)>>7; |
||
729 | c <<= 1; |
||
730 | *dst++ |= (c&0x80)>>7; |
||
731 | c <<= 1; |
||
732 | *dst++ |= (c&0x80)>>7; |
||
733 | } |
||
734 | } |
||
735 | |||
736 | |||
737 | if ( font->style & TTF_STYLE_UNDERLINE ) { |
||
738 | int row_offset; |
||
739 | |||
740 | |||
741 | if ( row_offset > font->height ) { |
||
742 | row_offset = font->height-1; |
||
743 | } |
||
744 | memset((Uint8 *)textbuf->pixels+row_offset*textbuf->pitch, |
||
745 | 1, textbuf->w); |
||
746 | } |
||
747 | return(textbuf); |
||
748 | } |
||
749 | |||
750 | |||
751 | |||
752 | */ |
||
753 | SDL_Surface *TTF_RenderText_Shaded(TTF_Font *font, |
||
754 | const char *text, SDL_Color fg, SDL_Color bg) |
||
755 | { |
||
756 | SDL_Surface *textbuf; |
||
757 | Uint16 *unicode_text; |
||
758 | int unicode_len; |
||
759 | |||
760 | |||
761 | unicode_len = strlen(text); |
||
762 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
||
763 | if ( unicode_text == NULL ) { |
||
764 | SDL_SetError("Out of memory"); |
||
765 | return(NULL); |
||
766 | } |
||
767 | ASCII_to_UNICODE(unicode_text, text, unicode_len); |
||
768 | |||
769 | |||
770 | textbuf = TTF_RenderUNICODE_Shaded(font, unicode_text, fg, bg); |
||
771 | |||
772 | |||
773 | free(unicode_text); |
||
774 | return(textbuf); |
||
775 | } |
||
776 | |||
777 | |||
778 | */ |
||
779 | SDL_Surface *TTF_RenderUTF8_Shaded(TTF_Font *font, |
||
780 | const char *text, SDL_Color fg, SDL_Color bg) |
||
781 | { |
||
782 | SDL_Surface *textbuf; |
||
783 | Uint16 *unicode_text; |
||
784 | int unicode_len; |
||
785 | |||
786 | |||
787 | unicode_len = strlen(text); |
||
788 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
||
789 | if ( unicode_text == NULL ) { |
||
790 | SDL_SetError("Out of memory"); |
||
791 | return(NULL); |
||
792 | } |
||
793 | UTF8_to_UNICODE(unicode_text, text, unicode_len); |
||
794 | |||
795 | |||
796 | textbuf = TTF_RenderUNICODE_Shaded(font, unicode_text, fg, bg); |
||
797 | |||
798 | |||
799 | free(unicode_text); |
||
800 | return(textbuf); |
||
801 | } |
||
802 | |||
803 | |||
804 | const Uint16 *text, SDL_Color fg, SDL_Color bg) |
||
805 | { |
||
806 | int xstart, width; |
||
807 | int w, h; |
||
808 | SDL_Surface *textbuf; |
||
809 | SDL_Palette *palette; |
||
810 | int index; |
||
811 | int rdiff, gdiff, bdiff; |
||
812 | const Uint16 *ch; |
||
813 | Uint8 *src, *dst; |
||
814 | int row, col; |
||
815 | TT_Error error; |
||
816 | |||
817 | |||
818 | if ( (TTF_SizeUNICODE(font, text, &w, &h) < 0) || !w ) { |
||
819 | TTF_SetError("Text has zero width"); |
||
820 | return(NULL); |
||
821 | } |
||
822 | |||
823 | |||
824 | width = w; |
||
825 | w = (w+3)&~3; |
||
826 | textbuf = SDL_AllocSurface(SDL_SWSURFACE, w, h, 8, 0, 0, 0, 0); |
||
827 | if ( textbuf == NULL ) { |
||
828 | return(NULL); |
||
829 | } |
||
830 | |||
831 | |||
832 | palette = textbuf->format->palette; |
||
833 | rdiff = fg.r - bg.r; |
||
834 | gdiff = fg.g - bg.g; |
||
835 | bdiff = fg.b - bg.b; |
||
836 | for ( index=0; index<5; ++index ) { |
||
837 | palette->colors[index].r = bg.r + (index*rdiff)/4; |
||
838 | palette->colors[index].g = bg.g + (index*gdiff)/4; |
||
839 | palette->colors[index].b = bg.b + (index*bdiff)/4; |
||
840 | } |
||
841 | /* The other 3 levels are used as overflow when ORing pixels */ |
||
842 | for ( ; index<8; ++index ) { |
||
843 | palette->colors[index] = palette->colors[4]; |
||
844 | } |
||
845 | |||
846 | |||
847 | xstart = 0; |
||
848 | for ( ch=text; *ch; ++ch ) { |
||
849 | error = Find_Glyph(font, *ch); |
||
850 | if ( ! error ) { |
||
851 | w = font->current->pixmap.width; |
||
852 | src = (Uint8 *)font->current->pixmap.bitmap; |
||
853 | for ( row = 0; row < h; ++row ) { |
||
854 | dst = (Uint8 *)textbuf->pixels + |
||
855 | row * textbuf->pitch + |
||
856 | xstart + font->current->minx; |
||
857 | for ( col=w; col>0; col -= 4 ) { |
||
858 | *dst++ |= *src++; |
||
859 | *dst++ |= *src++; |
||
860 | *dst++ |= *src++; |
||
861 | *dst++ |= *src++; |
||
862 | } |
||
863 | } |
||
864 | xstart += font->current->advance; |
||
865 | if ( font->style & TTF_STYLE_BOLD ) { |
||
866 | xstart += font->glyph_overhang; |
||
867 | } |
||
868 | } |
||
869 | } |
||
870 | /* Handle the underline style */ |
||
871 | if ( font->style & TTF_STYLE_UNDERLINE ) { |
||
872 | int row_offset; |
||
873 | |||
874 | |||
875 | if ( row_offset > font->height ) { |
||
876 | row_offset = font->height-1; |
||
877 | } |
||
878 | memset((Uint8 *)textbuf->pixels+row_offset*textbuf->pitch, |
||
879 | 4, width); |
||
880 | } |
||
881 | return(textbuf); |
||
882 | } |
||
883 | |||
884 | |||
885 | Uint16 ch, SDL_Color fg, SDL_Color bg) |
||
886 | { |
||
887 | SDL_Surface *textbuf; |
||
888 | SDL_Palette *palette; |
||
889 | int index; |
||
890 | int rdiff, gdiff, bdiff; |
||
891 | Uint8 *src, *dst; |
||
892 | int row, col; |
||
893 | TT_Error error; |
||
894 | struct glyph *glyph; |
||
895 | |||
896 | |||
897 | error = Find_Glyph(font, ch); |
||
898 | if ( error ) { |
||
899 | return(NULL); |
||
900 | } |
||
901 | glyph = font->current; |
||
902 | |||
903 | |||
904 | textbuf = SDL_CreateRGBSurface(SDL_SWSURFACE, |
||
905 | glyph->pixmap.width, glyph->pixmap.rows, 8, 0, 0, 0, 0); |
||
906 | if ( ! textbuf ) { |
||
907 | return(NULL); |
||
908 | } |
||
909 | |||
910 | |||
911 | palette = textbuf->format->palette; |
||
912 | rdiff = fg.r - bg.r; |
||
913 | gdiff = fg.g - bg.g; |
||
914 | bdiff = fg.b - bg.b; |
||
915 | for ( index=0; index<5; ++index ) { |
||
916 | palette->colors[index].r = bg.r + (index*rdiff)/4; |
||
917 | palette->colors[index].g = bg.g + (index*gdiff)/4; |
||
918 | palette->colors[index].b = bg.b + (index*bdiff)/4; |
||
919 | } |
||
920 | |||
921 | |||
922 | for ( row=0; row |
||
923 | src = glyph->pixmap.bitmap + row * glyph->pixmap.cols; |
||
924 | dst = (Uint8 *)textbuf->pixels + row * textbuf->pitch; |
||
925 | memcpy(dst, src, glyph->pixmap.cols); |
||
926 | } |
||
927 | |||
928 | |||
929 | if ( font->style & TTF_STYLE_UNDERLINE ) { |
||
930 | int row_offset; |
||
931 | |||
932 | |||
933 | if ( row_offset > font->height ) { |
||
934 | row_offset = font->height-1; |
||
935 | } |
||
936 | memset((Uint8 *)textbuf->pixels+row_offset*textbuf->pitch, |
||
937 | 4, glyph->pixmap.cols); |
||
938 | } |
||
939 | return(textbuf); |
||
940 | } |
||
941 | |||
942 | |||
943 | */ |
||
944 | SDL_Surface *TTF_RenderText_Blended(TTF_Font *font, |
||
945 | const char *text, SDL_Color fg) |
||
946 | { |
||
947 | SDL_Surface *textbuf; |
||
948 | Uint16 *unicode_text; |
||
949 | int unicode_len; |
||
950 | |||
951 | |||
952 | unicode_len = strlen(text); |
||
953 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
||
954 | if ( unicode_text == NULL ) { |
||
955 | SDL_SetError("Out of memory"); |
||
956 | return(NULL); |
||
957 | } |
||
958 | ASCII_to_UNICODE(unicode_text, text, unicode_len); |
||
959 | |||
960 | |||
961 | textbuf = TTF_RenderUNICODE_Blended(font, unicode_text, fg); |
||
962 | |||
963 | |||
964 | free(unicode_text); |
||
965 | return(textbuf); |
||
966 | } |
||
967 | |||
968 | |||
969 | */ |
||
970 | SDL_Surface *TTF_RenderUTF8_Blended(TTF_Font *font, |
||
971 | const char *text, SDL_Color fg) |
||
972 | { |
||
973 | SDL_Surface *textbuf; |
||
974 | Uint16 *unicode_text; |
||
975 | int unicode_len; |
||
976 | |||
977 | |||
978 | unicode_len = strlen(text); |
||
979 | unicode_text = (Uint16 *)malloc((unicode_len+1)*(sizeof *unicode_text)); |
||
980 | if ( unicode_text == NULL ) { |
||
981 | SDL_SetError("Out of memory"); |
||
982 | return(NULL); |
||
983 | } |
||
984 | UTF8_to_UNICODE(unicode_text, text, unicode_len); |
||
985 | |||
986 | |||
987 | textbuf = TTF_RenderUNICODE_Blended(font, unicode_text, fg); |
||
988 | |||
989 | |||
990 | free(unicode_text); |
||
991 | return(textbuf); |
||
992 | } |
||
993 | |||
994 | |||
995 | const Uint16 *text, SDL_Color fg) |
||
996 | { |
||
997 | int xstart, width; |
||
998 | int w, h; |
||
999 | SDL_Surface *textbuf; |
||
1000 | #if SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL) >= \ |
||
1001 | SDL_VERSIONNUM(1, 1, 5) /* The great alpha flip */ |
||
1002 | Uint32 alpha_table[] = { |
||
1003 | (0)<<24, (255-128)<<24, (255-64)<<24, (255-32)<<24, |
||
1004 | (255)<<24, (255)<<24, (255)<<24, (255)<<24 |
||
1005 | }; |
||
1006 | #else |
||
1007 | Uint32 alpha_table[] = { |
||
1008 | (255<<24), (128<<24), (64<<24), (32<<24), 0, 0, 0, 0 |
||
1009 | }; |
||
1010 | #endif |
||
1011 | Uint32 pixel; |
||
1012 | const Uint16 *ch; |
||
1013 | Uint8 *src; |
||
1014 | Uint32 *dst; |
||
1015 | int row, col; |
||
1016 | TT_Error error; |
||
1017 | |||
1018 | |||
1019 | if ( (TTF_SizeUNICODE(font, text, &w, &h) < 0) || !w ) { |
||
1020 | TTF_SetError("Text has zero width"); |
||
1021 | return(NULL); |
||
1022 | } |
||
1023 | |||
1024 | |||
1025 | width = w; |
||
1026 | w = (w+3)&~3; |
||
1027 | textbuf = SDL_AllocSurface(SDL_SWSURFACE, w, h, 32, |
||
1028 | 0x00FF0000, 0x0000FF00, 0x000000FF, |
||
1029 | 0xFF000000); |
||
1030 | if ( textbuf == NULL ) { |
||
1031 | return(NULL); |
||
1032 | } |
||
1033 | |||
1034 | |||
1035 | xstart = 0; |
||
1036 | for ( ch=text; *ch; ++ch ) { |
||
1037 | error = Find_Glyph(font, *ch); |
||
1038 | if ( ! error ) { |
||
1039 | w = font->current->pixmap.width; |
||
1040 | src = (Uint8 *)font->current->pixmap.bitmap; |
||
1041 | for ( row = 0; row < h; ++row ) { |
||
1042 | dst = (Uint32 *)textbuf->pixels + |
||
1043 | row * textbuf->pitch/4 + |
||
1044 | xstart + font->current->minx; |
||
1045 | for ( col=w; col>0; col -= 4 ) { |
||
1046 | *dst++ |= *src++; |
||
1047 | *dst++ |= *src++; |
||
1048 | *dst++ |= *src++; |
||
1049 | *dst++ |= *src++; |
||
1050 | } |
||
1051 | } |
||
1052 | xstart += font->current->advance; |
||
1053 | if ( font->style & TTF_STYLE_BOLD ) { |
||
1054 | xstart += font->glyph_overhang; |
||
1055 | } |
||
1056 | } |
||
1057 | } |
||
1058 | |||
1059 | |||
1060 | if ( font->style & TTF_STYLE_UNDERLINE ) { |
||
1061 | int row_offset; |
||
1062 | |||
1063 | |||
1064 | if ( row_offset > font->height ) { |
||
1065 | row_offset = font->height-1; |
||
1066 | } |
||
1067 | dst = (Uint32 *)textbuf->pixels+row_offset*textbuf->pitch/4; |
||
1068 | for ( col=width; col > 0; ++col ) { |
||
1069 | *dst++ = 4; |
||
1070 | } |
||
1071 | } |
||
1072 | |||
1073 | |||
1074 | pixel = (fg.r<<16)|(fg.g<<8)|fg.b; |
||
1075 | for ( xstart = 0; xstart < 8; ++xstart ) { |
||
1076 | alpha_table[xstart] |= pixel; |
||
1077 | } |
||
1078 | |||
1079 | |||
1080 | for ( row = 0; row < textbuf->h; ++row ) { |
||
1081 | dst = (Uint32 *)textbuf->pixels + row * textbuf->pitch/4; |
||
1082 | for ( col=textbuf->w; col>0; col -= 4 ) { |
||
1083 | *dst = alpha_table[*dst]; |
||
1084 | ++dst; |
||
1085 | *dst = alpha_table[*dst]; |
||
1086 | ++dst; |
||
1087 | *dst = alpha_table[*dst]; |
||
1088 | ++dst; |
||
1089 | *dst = alpha_table[*dst]; |
||
1090 | ++dst; |
||
1091 | } |
||
1092 | } |
||
1093 | return(textbuf); |
||
1094 | } |
||
1095 | |||
1096 | |||
1097 | { |
||
1098 | SDL_Surface *textbuf; |
||
1099 | #if SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL) >= \ |
||
1100 | SDL_VERSIONNUM(1, 1, 5) /* The great alpha flip */ |
||
1101 | Uint32 alpha_table[] = { |
||
1102 | (0)<<24, (255-128)<<24, (255-64)<<24, (255-32)<<24, |
||
1103 | (255)<<24, (255)<<24, (255)<<24, (255)<<24 |
||
1104 | }; |
||
1105 | #else |
||
1106 | Uint32 alpha_table[] = { |
||
1107 | (255<<24), (128<<24), (64<<24), (32<<24), 0, 0, 0, 0 |
||
1108 | }; |
||
1109 | #endif |
||
1110 | Uint32 pixel; |
||
1111 | Uint8 *src; |
||
1112 | Uint32 *dst; |
||
1113 | int row, col; |
||
1114 | TT_Error error; |
||
1115 | struct glyph *glyph; |
||
1116 | |||
1117 | |||
1118 | error = Find_Glyph(font, ch); |
||
1119 | if ( error ) { |
||
1120 | return(NULL); |
||
1121 | } |
||
1122 | glyph = font->current; |
||
1123 | |||
1124 | |||
1125 | textbuf = SDL_CreateRGBSurface(SDL_SWSURFACE, |
||
1126 | glyph->pixmap.width, glyph->pixmap.rows, 32, |
||
1127 | 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000); |
||
1128 | if ( ! textbuf ) { |
||
1129 | return(NULL); |
||
1130 | } |
||
1131 | |||
1132 | |||
1133 | for ( row=0; row |
||
1134 | src = glyph->pixmap.bitmap + row * glyph->pixmap.cols; |
||
1135 | dst = (Uint32 *)textbuf->pixels + row * textbuf->pitch/4; |
||
1136 | for ( col=0; col |
||
1137 | *dst++ = *src++; |
||
1138 | } |
||
1139 | } |
||
1140 | |||
1141 | |||
1142 | if ( font->style & TTF_STYLE_UNDERLINE ) { |
||
1143 | int row_offset; |
||
1144 | |||
1145 | |||
1146 | if ( row_offset > font->height ) { |
||
1147 | row_offset = font->height-1; |
||
1148 | } |
||
1149 | dst = (Uint32 *)textbuf->pixels+row_offset*textbuf->pitch/4; |
||
1150 | for ( col=glyph->pixmap.cols; col > 0; ++col ) { |
||
1151 | *dst++ = 4; |
||
1152 | } |
||
1153 | } |
||
1154 | |||
1155 | |||
1156 | pixel = (fg.r<<16)|(fg.g<<8)|fg.b; |
||
1157 | for ( col = 0; col < 8; ++col ) { |
||
1158 | alpha_table[col] |= pixel; |
||
1159 | } |
||
1160 | |||
1161 | |||
1162 | for ( row = 0; row < textbuf->h; ++row ) { |
||
1163 | dst = (Uint32 *)textbuf->pixels + row * textbuf->pitch/4; |
||
1164 | for ( col=textbuf->w; col>0; col -= 4 ) { |
||
1165 | *dst = alpha_table[*dst]; |
||
1166 | ++dst; |
||
1167 | *dst = alpha_table[*dst]; |
||
1168 | ++dst; |
||
1169 | *dst = alpha_table[*dst]; |
||
1170 | ++dst; |
||
1171 | *dst = alpha_table[*dst]; |
||
1172 | ++dst; |
||
1173 | } |
||
1174 | } |
||
1175 | return(textbuf); |
||
1176 | } |
||
1177 | |||
1178 | |||
1179 | { |
||
1180 | font->style = style; |
||
1181 | Flush_Cache(font); |
||
1182 | } |
||
1183 | |||
1184 | |||
1185 | { |
||
1186 | return(font->style); |
||
1187 | } |
||
1188 | |||
1189 | |||
1190 | { |
||
1191 | TT_Done_FreeType(engine); |
||
1192 | }>>8)|fg.b; |
||
1193 | ><8)|fg.b; |