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Viewing changes to src/cairo-stroke-style.c

  • Committer: Package Import Robot
  • Author(s): Chris Coulson
  • Date: 2013-01-23 21:19:34 UTC
  • mfrom: (1.3.11) (28.1.7 experimental)
  • Revision ID: package-import@ubuntu.com-20130123211934-q9qb538ujcmkliic
Tags: 1.12.10-1ubuntu1
https://launchpad.net/bugs/725434
* Merge from Debian, remaining changes:
* debian/patches/server_side_gradients.patch:
  - Don't use server side gradients, most drivers don't handle those and
    are really slow
* debian/control: Add missing libxext-dev dependency to libcairo2-dev.
  Spotted by autopkgtest.
* debian/patches/git_evince_rendering_fix.patch:
  Backport GIT commit to fix a rendering bug in evince
* debian/control, debian/libcairo2.symbols, debian/rules:
  - Disable GL backend due to LP: #725434

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Lines of Context:
src/cairo-stroke-style.c
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    }
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}
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void
 
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_cairo_stroke_style_max_line_distance_from_path (const cairo_stroke_style_t *style,
 
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                                                 const cairo_path_fixed_t *path,
 
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                                                 const cairo_matrix_t *ctm,
 
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                                                 double *dx, double *dy)
 
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{
 
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    double style_expansion = 0.5 * style->line_width;
 
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    if (_cairo_matrix_has_unity_scale (ctm)) {
 
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        *dx = *dy = style_expansion;
 
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    } else {
 
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        *dx = style_expansion * hypot (ctm->xx, ctm->xy);
 
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        *dy = style_expansion * hypot (ctm->yy, ctm->yx);
 
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    }
 
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}
 
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void
 
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_cairo_stroke_style_max_join_distance_from_path (const cairo_stroke_style_t *style,
 
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                                                 const cairo_path_fixed_t *path,
 
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                                                 const cairo_matrix_t *ctm,
 
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                                                 double *dx, double *dy)
 
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{
 
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    double style_expansion = 0.5;
 
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    if (style->line_join == CAIRO_LINE_JOIN_MITER &&
 
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        ! path->stroke_is_rectilinear &&
 
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        style_expansion < M_SQRT2 * style->miter_limit)
 
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    {
 
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        style_expansion = M_SQRT2 * style->miter_limit;
 
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    }
 
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    style_expansion *= style->line_width;
 
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    if (_cairo_matrix_has_unity_scale (ctm)) {
 
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        *dx = *dy = style_expansion;
 
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    } else {
 
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        *dx = style_expansion * hypot (ctm->xx, ctm->xy);
 
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        *dy = style_expansion * hypot (ctm->yy, ctm->yx);
 
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    }
 
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}
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/*
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 * Computes the period of a dashed stroke style.
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 * Returns 0 for non-dashed styles.