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etc2comp: Fix max iterations for RGBA channels

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Those checks were *very likely* meant to clamp the max value,
not the min one.

Fixes https://github.com/godotengine/godot/issues/10059#issuecomment-606993001.
This commit is contained in:
Rémi Verschelde
2020-04-01 11:23:42 +02:00
parent f7b8d0c688
commit dbf52c63cc
3 changed files with 248 additions and 24 deletions
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24
thirdparty/etc2comp/EtcBlock4x4Encoding_RGB8A1.cpp vendored
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@@ -847,7 +847,7 @@ namespace Etc
int iMaxRed1 = iColor1Red + (int)a_uiRadius;
if (iMaxRed1 > 15)
{
iMinRed1 = 15;
iMaxRed1 = 15;
}
int iMinGreen1 = iColor1Green - (int)a_uiRadius;
@@ -858,7 +858,7 @@ namespace Etc
int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
if (iMaxGreen1 > 15)
{
iMinGreen1 = 15;
iMaxGreen1 = 15;
}
int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
@@ -869,7 +869,7 @@ namespace Etc
int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
if (iMaxBlue1 > 15)
{
iMinBlue1 = 15;
iMaxBlue1 = 15;
}
int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
@@ -884,7 +884,7 @@ namespace Etc
int iMaxRed2 = iColor2Red + (int)a_uiRadius;
if (iMaxRed2 > 15)
{
iMinRed2 = 15;
iMaxRed2 = 15;
}
int iMinGreen2 = iColor2Green - (int)a_uiRadius;
@@ -895,7 +895,7 @@ namespace Etc
int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
if (iMaxGreen2 > 15)
{
iMinGreen2 = 15;
iMaxGreen2 = 15;
}
int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
@@ -906,7 +906,7 @@ namespace Etc
int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
if (iMaxBlue2 > 15)
{
iMinBlue2 = 15;
iMaxBlue2 = 15;
}
for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)
@@ -1108,7 +1108,7 @@ namespace Etc
int iMaxRed1 = iColor1Red + (int)a_uiRadius;
if (iMaxRed1 > 15)
{
iMinRed1 = 15;
iMaxRed1 = 15;
}
int iMinGreen1 = iColor1Green - (int)a_uiRadius;
@@ -1119,7 +1119,7 @@ namespace Etc
int iMaxGreen1 = iColor1Green + (int)a_uiRadius;
if (iMaxGreen1 > 15)
{
iMinGreen1 = 15;
iMaxGreen1 = 15;
}
int iMinBlue1 = iColor1Blue - (int)a_uiRadius;
@@ -1130,7 +1130,7 @@ namespace Etc
int iMaxBlue1 = iColor1Blue + (int)a_uiRadius;
if (iMaxBlue1 > 15)
{
iMinBlue1 = 15;
iMaxBlue1 = 15;
}
int iColor2Red = m_frgbaOriginalColor2_TAndH.IntRed(15.0f);
@@ -1145,7 +1145,7 @@ namespace Etc
int iMaxRed2 = iColor2Red + (int)a_uiRadius;
if (iMaxRed2 > 15)
{
iMinRed2 = 15;
iMaxRed2 = 15;
}
int iMinGreen2 = iColor2Green - (int)a_uiRadius;
@@ -1156,7 +1156,7 @@ namespace Etc
int iMaxGreen2 = iColor2Green + (int)a_uiRadius;
if (iMaxGreen2 > 15)
{
iMinGreen2 = 15;
iMaxGreen2 = 15;
}
int iMinBlue2 = iColor2Blue - (int)a_uiRadius;
@@ -1167,7 +1167,7 @@ namespace Etc
int iMaxBlue2 = iColor2Blue + (int)a_uiRadius;
if (iMaxBlue2 > 15)
{
iMinBlue2 = 15;
iMaxBlue2 = 15;
}
for (unsigned int uiDistance = 0; uiDistance < TH_DISTANCES; uiDistance++)