parent
59434578cd
commit
5c46286592
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@ -196,88 +196,4 @@ hb_shape (hb_font_t *font,
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}
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static float
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buffer_width (hb_buffer_t *buffer)
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{
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float w = 0;
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auto *pos = buffer->pos;
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unsigned count = buffer->len;
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for (unsigned i = 0; i < count; i++)
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w += pos[i].x_advance;
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return w;
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}
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hb_bool_t
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hb_shape_justify (hb_font_t *font,
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hb_buffer_t *buffer,
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const hb_feature_t *features,
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unsigned int num_features,
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const char * const *shaper_list,
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float target_width,
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float *width)
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{
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// TODO vertical
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// TODO buffer context
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if (target_width == *width)
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return hb_shape_full (font, buffer,
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features, num_features,
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shaper_list);
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hb_face_t *face = font->face;
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hb_ot_var_axis_info_t axis_info;
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if (!hb_ot_var_find_axis_info (face, HB_TAG ('j','s','t','f'), &axis_info) &&
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!hb_ot_var_find_axis_info (face, HB_TAG ('w','d','t','h'), &axis_info))
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{
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if (hb_shape_full (font, buffer,
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features, num_features,
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shaper_list))
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{
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*width = buffer_width (buffer);
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return true;
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}
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else
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return false;
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}
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auto *text_info = (hb_glyph_info_t *) hb_malloc (buffer->len * sizeof (buffer->info[0]));
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if (unlikely (!text_info))
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return false;
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memcpy (text_info, buffer->info, buffer->len * sizeof (buffer->info[0]));
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if (!*width)
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{
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if (hb_shape_full (font, buffer,
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features, num_features,
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shaper_list))
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return false;
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*width = buffer_width (buffer);
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}
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if (target_width == *width)
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return true;
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hb_font_t *sub_font = hb_font_create_sub_font (font);
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float a, b, ya, yb;
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const float epsilon;
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const unsigned n0 = 1;
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const k1 = 0.2 / (b - a);
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double var = solve_itp (func_t f,
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double a, double b,
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double epsilon,
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unsigned n0,
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double k1,
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double &ya, double yb);
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hb_font_destroy (sub_font);
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hb_free (text_info);
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return false;
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}
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#endif
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@ -53,15 +53,6 @@ hb_shape_full (hb_font_t *font,
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unsigned int num_features,
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const char * const *shaper_list);
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HB_EXTERN hb_bool_t
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hb_shape_justify (hb_font_t *font,
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hb_buffer_t *buffer,
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const hb_feature_t *features,
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unsigned int num_features,
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const char * const *shaper_list,
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float target_width,
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float *width);
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HB_EXTERN const char **
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hb_shape_list_shapers (void);
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