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| author | Johannes Schickel | 2012-07-14 05:35:20 +0200 |
|---|---|---|
| committer | Johannes Schickel | 2012-08-28 02:27:48 +0200 |
| commit | a92a509ac844fdad796748848d1143b27547173f (patch) | |
| tree | 6f467d1cf704cc08f401414fce177addb30ec352 /graphics/conversion.h | |
| parent | 0d78d46a0e82af81681727a94e01ff5f309887fa (diff) | |
| download | scummvm-rg350-a92a509ac844fdad796748848d1143b27547173f.tar.gz scummvm-rg350-a92a509ac844fdad796748848d1143b27547173f.tar.bz2 scummvm-rg350-a92a509ac844fdad796748848d1143b27547173f.zip | |
GRAPHICS: Allow in-place conversion with any color formats in crossBlit.
Diffstat (limited to 'graphics/conversion.h')
| -rw-r--r-- | graphics/conversion.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/graphics/conversion.h b/graphics/conversion.h index 0dce3cf279..28e64a94fb 100644 --- a/graphics/conversion.h +++ b/graphics/conversion.h @@ -60,9 +60,12 @@ inline static void RGB2YUV(byte r, byte g, byte b, byte &y, byte &u, byte &v) { * false if there is an error. * * @note Blitting to a 3Bpp destination is not supported - * @note This can convert a rectangle in place, if the source and - * destination format have the same bytedepth. - * + * @note This can convert a surface in place, regardless of the + * source and destination format, as long as there is enough + * space for the destination. The dstPitch / srcPitch ratio + * must at least equal the dstBpp / srcBpp ratio for + * dstPitch >= srcPitch and at most dstBpp / srcBpp for + * dstPitch < srcPitch though. */ bool crossBlit(byte *dst, const byte *src, const uint dstPitch, const uint srcPitch, |