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getChanelValueAt 'correction'

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when feeding a u8 value from a 16 bit format, best to look up the red chanel for minimal artifacting
This commit is contained in:
AzaezelX 2019-10-30 21:39:20 -05:00
parent cba14c035f
commit 047a45c82d
1 changed files with 5 additions and 2 deletions
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7
Engine/source/gfx/bitmap/gBitmap.cpp
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@ -862,7 +862,10 @@ U8 GBitmap::getChanelValueAt(U32 x, U32 y, U32 chan)
{
ColorI pixelColor = ColorI(255,255,255,255);
getColor(x, y, pixelColor);
if (mInternalFormat == GFXFormatL16)
{
chan = 0;
}
switch (chan) {
case 0: return pixelColor.red;
case 1: return pixelColor.green;
@ -1323,7 +1326,7 @@ U32 GBitmap::getSurfaceSize(const U32 mipLevel) const
if (mInternalFormat >= GFXFormatBC1 && mInternalFormat <= GFXFormatBC3)
{
// From the directX docs:
// max(1, width ÷ 4) x max(1, height ÷ 4) x 8(DXT1) or 16(DXT2-5)
// max(1, width ÷ 4) x max(1, height ÷ 4) x 8(DXT1) or 16(DXT2-5)
U32 sizeMultiple = 0;