33044b83c2
Detect if DirectWrite 2 is available, and support color fonts if possible. One limitation worth mentioning is that if the color font contains regular, monochrome glyphs as well, then these will be drawn in black, and not in the pen color. Fixing this would require some elaborate rewrites in the font rendering system, since we would have to have two font caches per color font (one for mono and one for colors), or do some sort of trick where we make argb(r, g, b, 0) mean subpixel alpha instead, and detect glyphs that are not correctly premultiplied when blitting to the screen. Another limitation is that the approach does not work with distance field rendering. In principle we could support this on Windows, since the format is vector based, but it would also require substantial work and it is not possible to support for Apple/Google fonts anyway, so it would just lead to code which is not cross-platform. [ChangeLog][Windows] Added support for color fonts (color emojis) when DirectWrite 2 is available. Change-Id: I6a608dd5d2aa3a7e762a06830902bddac7c550a5 Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
5 lines
75 B
Prolog
5 lines
75 B
Prolog
SOURCES = directwrite2.cpp
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LIBS += -ldwrite
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CONFIG -= qt
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CONFIG += console
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