This commit is contained in:
Alex Clark 2014-06-22 20:48:49 -04:00
parent d1130b4d09
commit 4b2bc94b19

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@ -39,7 +39,7 @@ Adding Tkinter support
The Photoimage Booster Patch (for Windows 95/NT)
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This patch kit boosts performance for 16/24-bit displays. The
This patch kit boosts performance for 16/24-bit displays. The
first patch is required on Tk 4.2 (where it fixes the problems for
16-bit displays) and later versions, with the exception for Tk 8.0b1
where Sun added something similar themselves, only to remove it in
@ -47,7 +47,7 @@ where Sun added something similar themselves, only to remove it in
much faster on both 16-bit and 24-bit displays. The patch has been
tested with Tk 4.2 and 8.0.
Here's a benchmark, made with a sample program which loads two
Here's a benchmark, made with a sample program which loads two
512x512 greyscale PGM's, and two 512x512 colour PPM's, and displays
each of them in a separate toplevel windows. Tcl/Tk was compiled
with Visual C 4.0, and run on a P100 under Win95. Image load times
@ -97,7 +97,7 @@ to::
bad on highend truecolour displays. IMO, it should be rewritten from
scratch (some other day...).
Anyway, the following band-aid makes the situation a little bit
Anyway, the following band-aid makes the situation a little bit
better under Windows. This hack trades some marginal quality (no
dithering on 16-bit displays) for a dramatic performance boost.
Requires patch 1, unless you're using Tk 4.1 or Tk 8.0b1.