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Fonts and GM Tests
==================
Overview
--------
Each test in the gm directory draws a reference image. Their primary purpose is
to detect when images change unexpectedly, indicating that a rendering bug has
been introduced.
The gm tests have a secondary purpose: they detect when rendering is different
across platforms and configurations.
GM font selection
-----------------
Each gm specifies the typeface to use when drawing text. For now, to set the
portable typeface on the paint, call:
~~~~
sk_tool_utils::set_portable_typeface(SkPaint* , const char* name = nullptr,
SkFontStyle style = SkFontStyle());
~~~~
To create a portable typeface, use:
~~~~
SkTypeface* typeface = sk_tool_utils::create_portable_typeface(const char* name,
SkFontStyle style);
~~~~
Eventually, both 'set_portable_typeface()' and 'create_portable_typeface()' will be
removed. Instead, a test-wide 'SkFontMgr' will be selected to choose portable
fonts or resource fonts.
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