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dds/etc1/pbm/pvr: Make those modules and split thirdparty files

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They are not particularly packaged in Linux distros so we do not
facilitate unbundling via SCons. There could be done if/when there
is interest.

Also s/pnm/pbm/, long-lived typo :)
This commit is contained in:
Rémi Verschelde
2016-10-11 20:44:26 +02:00
parent c31ad71f10
commit b1e8889d96
55 changed files with 433 additions and 126 deletions
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209
thirdparty/pvrtccompressor/PvrTcPacket.cpp vendored Normal file
View File

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//============================================================================
#include "PvrTcPacket.h"
#include "BitScale.h"
//============================================================================
using namespace Javelin;
//============================================================================
const unsigned char PvrTcPacket::BILINEAR_FACTORS[16][4] =
{
{ 4, 4, 4, 4 },
{ 2, 6, 2, 6 },
{ 8, 0, 8, 0 },
{ 6, 2, 6, 2 },
{ 2, 2, 6, 6 },
{ 1, 3, 3, 9 },
{ 4, 0, 12, 0 },
{ 3, 1, 9, 3 },
{ 8, 8, 0, 0 },
{ 4, 12, 0, 0 },
{ 16, 0, 0, 0 },
{ 12, 4, 0, 0 },
{ 6, 6, 2, 2 },
{ 3, 9, 1, 3 },
{ 12, 0, 4, 0 },
{ 9, 3, 3, 1 },
};
// Weights are { colorA, colorB, alphaA, alphaB }
const unsigned char PvrTcPacket::WEIGHTS[8][4] =
{
// Weights for Mode=0
{ 8, 0, 8, 0 },
{ 5, 3, 5, 3 },
{ 3, 5, 3, 5 },
{ 0, 8, 0, 8 },
// Weights for Mode=1
{ 8, 0, 8, 0 },
{ 4, 4, 4, 4 },
{ 4, 4, 0, 0 },
{ 0, 8, 0, 8 },
};
//============================================================================
ColorRgb<int> PvrTcPacket::GetColorRgbA() const
{
if(colorAIsOpaque)
{
unsigned char r = colorA >> 9;
unsigned char g = colorA >> 4 & 0x1f;
unsigned char b = colorA & 0xf;
return ColorRgb<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_4_TO_8[b]);
}
else
{
unsigned char r = (colorA >> 7) & 0xf;
unsigned char g = (colorA >> 3) & 0xf;
unsigned char b = colorA & 7;
return ColorRgb<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_3_TO_8[b]);
}
}
ColorRgb<int> PvrTcPacket::GetColorRgbB() const
{
if(colorBIsOpaque)
{
unsigned char r = colorB >> 10;
unsigned char g = colorB >> 5 & 0x1f;
unsigned char b = colorB & 0x1f;
return ColorRgb<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_5_TO_8[b]);
}
else
{
unsigned char r = colorB >> 8 & 0xf;
unsigned char g = colorB >> 4 & 0xf;
unsigned char b = colorB & 0xf;
return ColorRgb<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_4_TO_8[b]);
}
}
ColorRgba<int> PvrTcPacket::GetColorRgbaA() const
{
if(colorAIsOpaque)
{
unsigned char r = colorA >> 9;
unsigned char g = colorA >> 4 & 0x1f;
unsigned char b = colorA & 0xf;
return ColorRgba<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_4_TO_8[b],
255);
}
else
{
unsigned char a = colorA >> 11 & 7;
unsigned char r = colorA >> 7 & 0xf;
unsigned char g = colorA >> 3 & 0xf;
unsigned char b = colorA & 7;
return ColorRgba<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_3_TO_8[b],
Data::BITSCALE_3_TO_8[a]);
}
}
ColorRgba<int> PvrTcPacket::GetColorRgbaB() const
{
if(colorBIsOpaque)
{
unsigned char r = colorB >> 10;
unsigned char g = colorB >> 5 & 0x1f;
unsigned char b = colorB & 0x1f;
return ColorRgba<int>(Data::BITSCALE_5_TO_8[r],
Data::BITSCALE_5_TO_8[g],
Data::BITSCALE_5_TO_8[b],
255);
}
else
{
unsigned char a = colorB >> 12 & 7;
unsigned char r = colorB >> 8 & 0xf;
unsigned char g = colorB >> 4 & 0xf;
unsigned char b = colorB & 0xf;
return ColorRgba<int>(Data::BITSCALE_4_TO_8[r],
Data::BITSCALE_4_TO_8[g],
Data::BITSCALE_4_TO_8[b],
Data::BITSCALE_3_TO_8[a]);
}
}
//============================================================================
void PvrTcPacket::SetColorA(const ColorRgb<unsigned char>& c)
{
int r = Data::BITSCALE_8_TO_5_FLOOR[c.r];
int g = Data::BITSCALE_8_TO_5_FLOOR[c.g];
int b = Data::BITSCALE_8_TO_4_FLOOR[c.b];
colorA = r<<9 | g<<4 | b;
colorAIsOpaque = true;
}
void PvrTcPacket::SetColorB(const ColorRgb<unsigned char>& c)
{
int r = Data::BITSCALE_8_TO_5_CEIL[c.r];
int g = Data::BITSCALE_8_TO_5_CEIL[c.g];
int b = Data::BITSCALE_8_TO_5_CEIL[c.b];
colorB = r<<10 | g<<5 | b;
colorBIsOpaque = true;
}
void PvrTcPacket::SetColorA(const ColorRgba<unsigned char>& c)
{
int a = Data::BITSCALE_8_TO_3_FLOOR[c.a];
if(a == 7)
{
int r = Data::BITSCALE_8_TO_5_FLOOR[c.r];
int g = Data::BITSCALE_8_TO_5_FLOOR[c.g];
int b = Data::BITSCALE_8_TO_4_FLOOR[c.b];
colorA = r<<9 | g<<4 | b;
colorAIsOpaque = true;
}
else
{
int r = Data::BITSCALE_8_TO_4_FLOOR[c.r];
int g = Data::BITSCALE_8_TO_4_FLOOR[c.g];
int b = Data::BITSCALE_8_TO_3_FLOOR[c.b];
colorA = a<<11 | r<<7 | g<<3 | b;
colorAIsOpaque = false;
}
}
void PvrTcPacket::SetColorB(const ColorRgba<unsigned char>& c)
{
int a = Data::BITSCALE_8_TO_3_CEIL[c.a];
if(a == 7)
{
int r = Data::BITSCALE_8_TO_5_CEIL[c.r];
int g = Data::BITSCALE_8_TO_5_CEIL[c.g];
int b = Data::BITSCALE_8_TO_5_CEIL[c.b];
colorB = r<<10 | g<<5 | b;
colorBIsOpaque = true;
}
else
{
int r = Data::BITSCALE_8_TO_4_CEIL[c.r];
int g = Data::BITSCALE_8_TO_4_CEIL[c.g];
int b = Data::BITSCALE_8_TO_4_CEIL[c.b];
colorB = a<<12 | r<<8 | g<<4 | b;
colorBIsOpaque = false;
}
}
//============================================================================