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authorMax Horn2009-02-13 00:11:16 +0000
committerMax Horn2009-02-13 00:11:16 +0000
commitd13acd8dafa1015f8b0585afd77891cb3ad0e081 (patch)
tree910b95644fd2b60b6d257e239c802693fa54687d /graphics
parenta3516483587b736922901ae74305dcf6f043987c (diff)
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cleanup
svn-id: r36289
Diffstat (limited to 'graphics')
-rw-r--r--graphics/scaler.cpp14
1 files changed, 6 insertions, 8 deletions
diff --git a/graphics/scaler.cpp b/graphics/scaler.cpp
index adfcda128d..7eeb9a07d9 100644
--- a/graphics/scaler.cpp
+++ b/graphics/scaler.cpp
@@ -73,19 +73,17 @@ uint32 hqx_redBlueMask = 0;
uint32 hqx_green_redBlue_Mask = 0;
// FIXME/TODO: The RGBtoYUV table sucks up 256 KB. This is bad.
-// In addition we never free them...
+// In addition we never free it...
//
// Note: a memory lookup table is *not* necessarily faster than computing
-// these things on the fly, because of its size. Both tables together, plus
-// the code, plus the input/output GFX data, won't fit in the cache on many
+// these things on the fly, because of its size. The table together with
+// the code, plus the input/output GFX data, may not fit in the cache on some
// systems, so main memory has to be accessed, which is about the worst thing
// that can happen to code which tries to be fast...
//
-// So we should think about ways to get these smaller / removed. Maybe we can
-// use the same technique which is employed by our MPEG code to reduce the
-// size of the lookup tables at the cost of some additional computations? That
-// might actually result in a speedup, too, if done right (and the code code
-// might actually be suitable for AltiVec/MMX/SSE speedup).
+// So we should think about ways to get this smaller / removed. Maybe we can
+// use the same technique employed by our MPEG code to reduce the size of the
+// lookup table at the cost of some additional computations?
//
// Of course, the above is largely a conjecture, and the actual speed
// differences are likely to vary a lot between different architectures and