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optimize split_colour15 and 16

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git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/trunk/rdesktop@616 423420c4-83ab-492f-b58f-81f9feb106b5
This commit is contained in:
Jay Sorg 2004-02-25 18:28:52 +00:00
parent 8afecde6e6
commit 7592155f8d
1 changed files with 9 additions and 15 deletions
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24
xwin.c
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@ -169,12 +169,9 @@ static PixelColour
split_colour15(uint32 colour)
{
PixelColour rv;
rv.red = (colour & 0x7c00) >> 10;
rv.red = (rv.red * 0xff) / 0x1f;
rv.green = (colour & 0x03e0) >> 5;
rv.green = (rv.green * 0xff) / 0x1f;
rv.blue = (colour & 0x1f);
rv.blue = (rv.blue * 0xff) / 0x1f;
rv.red = (colour & 0x7c00) >> 7;
rv.green = (colour & 0x03e0) >> 2;
rv.blue = (colour & 0x001f) << 3;
return rv;
}
@ -182,12 +179,9 @@ static PixelColour
split_colour16(uint32 colour)
{
PixelColour rv;
rv.red = (colour & 0xf800) >> 11;
rv.red = (rv.red * 0xff) / 0x1f;
rv.green = (colour & 0x07e0) >> 5;
rv.green = (rv.green * 0xff) / 0x3f;
rv.blue = (colour & 0x001f);
rv.blue = (rv.blue * 0xff) / 0x1f;
rv.red = (colour & 0xf800) >> 8;
rv.green = (colour & 0x07e0) >> 3;
rv.blue = (colour & 0x001f) << 3;
return rv;
}
@ -195,9 +189,9 @@ static PixelColour
split_colour24(uint32 colour)
{
PixelColour rv;
rv.blue = (colour & 0xff0000) >> 16;
rv.green = (colour & 0xff00) >> 8;
rv.red = (colour & 0xff);
rv.blue = (colour & 0xff0000) >> 16;
rv.green = (colour & 0x00ff00) >> 8;
rv.red = (colour & 0x0000ff);
return rv;
}