1 /***************************************************************************/ |
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2 /* */ |
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3 /* afwarp.h */ |
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4 /* */ |
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5 /* Auto-fitter warping algorithm (specification). */ |
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6 /* */ |
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7 /* Copyright 2006, 2007 by */ |
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8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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9 /* */ |
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10 /* This file is part of the FreeType project, and may only be used, */ |
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11 /* modified, and distributed under the terms of the FreeType project */ |
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12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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13 /* this file you indicate that you have read the license and */ |
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14 /* understand and accept it fully. */ |
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15 /* */ |
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16 /***************************************************************************/ |
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17 |
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18 |
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19 #ifndef __AFWARP_H__ |
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20 #define __AFWARP_H__ |
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21 |
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22 #include "afhints.h" |
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23 |
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24 FT_BEGIN_HEADER |
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25 |
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26 #define AF_WARPER_SCALE |
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27 |
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28 #define AF_WARPER_FLOOR( x ) ( (x) & ~63 ) |
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29 #define AF_WARPER_CEIL( x ) AF_WARPER_FLOOR( (x) + 63 ) |
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30 |
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31 |
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32 typedef FT_Int32 AF_WarpScore; |
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33 |
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34 typedef struct AF_WarperRec_ |
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35 { |
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36 FT_Pos x1, x2; |
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37 FT_Pos t1, t2; |
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38 FT_Pos x1min, x1max; |
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39 FT_Pos x2min, x2max; |
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40 FT_Pos w0, wmin, wmax; |
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41 |
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42 FT_Fixed best_scale; |
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43 FT_Pos best_delta; |
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44 AF_WarpScore best_score; |
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45 AF_WarpScore best_distort; |
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46 |
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47 } AF_WarperRec, *AF_Warper; |
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48 |
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49 |
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50 FT_LOCAL( void ) |
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51 af_warper_compute( AF_Warper warper, |
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52 AF_GlyphHints hints, |
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53 AF_Dimension dim, |
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54 FT_Fixed *a_scale, |
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55 FT_Fixed *a_delta ); |
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56 |
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57 |
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58 FT_END_HEADER |
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59 |
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60 |
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61 #endif /* __AFWARP_H__ */ |
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62 |
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63 |
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64 /* END */ |
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