Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/OT/Layout/GPOS/Anchor.hh @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1 #ifndef OT_LAYOUT_GPOS_ANCHOR_HH
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2 #define OT_LAYOUT_GPOS_ANCHOR_HH
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4 #include "AnchorFormat1.hh"
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5 #include "AnchorFormat2.hh"
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6 #include "AnchorFormat3.hh"
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8 namespace OT {
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9 namespace Layout {
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10 namespace GPOS_impl {
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12 struct Anchor
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13 {
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14 protected:
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15 union {
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16 HBUINT16 format; /* Format identifier */
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17 AnchorFormat1 format1;
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18 AnchorFormat2 format2;
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19 AnchorFormat3 format3;
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20 } u;
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21 public:
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22 DEFINE_SIZE_UNION (2, format);
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24 bool sanitize (hb_sanitize_context_t *c) const
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25 {
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26 TRACE_SANITIZE (this);
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27 if (!u.format.sanitize (c)) return_trace (false);
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28 switch (u.format) {
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29 case 1: return_trace (u.format1.sanitize (c));
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30 case 2: return_trace (u.format2.sanitize (c));
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31 case 3: return_trace (u.format3.sanitize (c));
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32 default:return_trace (true);
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33 }
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34 }
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36 void get_anchor (hb_ot_apply_context_t *c, hb_codepoint_t glyph_id,
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37 float *x, float *y) const
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38 {
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39 *x = *y = 0;
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40 switch (u.format) {
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41 case 1: u.format1.get_anchor (c, glyph_id, x, y); return;
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42 case 2: u.format2.get_anchor (c, glyph_id, x, y); return;
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43 case 3: u.format3.get_anchor (c, glyph_id, x, y); return;
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44 default: return;
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45 }
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46 }
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47
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48 bool subset (hb_subset_context_t *c) const
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49 {
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50 TRACE_SUBSET (this);
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51 switch (u.format) {
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52 case 1: return_trace (bool (reinterpret_cast<Anchor *> (u.format1.copy (c->serializer))));
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53 case 2:
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54 if (c->plan->flags & HB_SUBSET_FLAGS_NO_HINTING)
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55 {
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56 // AnchorFormat 2 just containins extra hinting information, so
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57 // if hints are being dropped convert to format 1.
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58 return_trace (bool (reinterpret_cast<Anchor *> (u.format1.copy (c->serializer))));
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59 }
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60 return_trace (bool (reinterpret_cast<Anchor *> (u.format2.copy (c->serializer))));
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61 case 3: return_trace (u.format3.subset (c));
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62 default:return_trace (false);
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63 }
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64 }
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65
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66 void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
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67 {
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68 switch (u.format) {
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69 case 1: case 2:
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70 return;
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71 case 3:
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72 u.format3.collect_variation_indices (c);
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73 return;
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74 default: return;
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75 }
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76 }
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77 };
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78
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79 }
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80 }
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81 }
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82
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83 #endif // OT_LAYOUT_GPOS_ANCHOR_HH