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GTK: make inst->pixmap and inst->surface mutually exclusive

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This removes the case where we draw into a Cairo surface and then copy
the results into a GdkPixmap.  Now, if we've got a GdkPixmap, we just
draw into it directly using Cairo.  This vastly reduces the number of
CopyArea operations needed to draw on the screen.
This commit is contained in:
Ben Harris
2025-04-20 11:08:59 +01:00
parent daed7200b3
commit 1ebca75a89
2 changed files with 17 additions and 36 deletions
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6
unix/unifont.h
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@ -40,8 +40,10 @@
* very simple rectangle-copy operation rather than a lot of fiddly
* drawing or bitmap transfer.
*
* However, GTK is deprecating the use of server-side pixmaps, so we
* have to disable this mode under some circumstances.
* For preference, we use a GdkPixmap for this, because both GDK and
* Cairo can draw to one of those. If those aren't available, then we
* instead create a Cairo surface that we hope will be backed by an X
* Pixmap.
*/
#define NO_BACKING_PIXMAPS
#endif