drewcassidy/nvidia-texture-tools
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Check for single color blocks in all compressors.

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This commit is contained in:
castano
2008-04-26 09:16:56 +00:00
parent 921ee354c0
commit 15e7125b4b
4 changed files with 56 additions and 13 deletions
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14
src/nvimage/ColorBlock.cpp
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@ -114,9 +114,12 @@ void ColorBlock::splatY()
/// Returns true if the block has a single color.
bool ColorBlock::isSingleColor() const
{
for(int i = 1; i < 16; i++)
Color32 mask(0xFF, 0xFF, 0xFF, 0x00);
uint u = m_color[0].u & mask.u;
for (int i = 1; i < 16; i++)
{
if (m_color[0] != m_color[i])
if (u != (m_color[i].u & mask.u))
{
return false;
}
@ -134,10 +137,13 @@ bool ColorBlock::isSingleColorNoAlpha() const
{
if (m_color[i].a != 0) c = m_color[i];
}
Color32 mask(0xFF, 0xFF, 0xFF, 0x00);
uint u = c.u & mask.u;
for(; i < 16; i++)
{
if (c != m_color[i])
if (u != (m_color[i].u & mask.u))
{
return false;
}