squish: Move to a module and split thirdparty lib

1 files changed, 0 insertions, 214 deletions

diff --git a/drivers/squish/colourblock.cpp b/drivers/squish/colourblock.cpp
deleted file mode 100644
index e6a5788b74..0000000000
--- a/drivers/squish/colourblock.cpp
+++ /dev/null
@@ -1,214 +0,0 @@
-/* -----------------------------------------------------------------------------
-
-	Copyright (c) 2006 Simon Brown                          si@sjbrown.co.uk
-
-	Permission is hereby granted, free of charge, to any person obtaining
-	a copy of this software and associated documentation files (the 
-	"Software"), to	deal in the Software without restriction, including
-	without limitation the rights to use, copy, modify, merge, publish,
-	distribute, sublicense, and/or sell copies of the Software, and to 
-	permit persons to whom the Software is furnished to do so, subject to 
-	the following conditions:
-
-	The above copyright notice and this permission notice shall be included
-	in all copies or substantial portions of the Software.
-
-	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
-	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
-	CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
-	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
-	SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-	
-   -------------------------------------------------------------------------- */
-   
-#include "colourblock.h"
-
-namespace squish {
-
-static int FloatToInt( float a, int limit )
-{
-	// use ANSI round-to-zero behaviour to get round-to-nearest
-	int i = ( int )( a + 0.5f );
-
-	// clamp to the limit
-	if( i < 0 )
-		i = 0;
-	else if( i > limit )
-		i = limit; 
-
-	// done
-	return i;
-}
-
-static int FloatTo565( Vec3::Arg colour )
-{
-	// get the components in the correct range
-	int r = FloatToInt( 31.0f*colour.X(), 31 );
-	int g = FloatToInt( 63.0f*colour.Y(), 63 );
-	int b = FloatToInt( 31.0f*colour.Z(), 31 );
-	
-	// pack into a single value
-	return ( r << 11 ) | ( g << 5 ) | b;
-}
-
-static void WriteColourBlock( int a, int b, u8* indices, void* block )
-{
-	// get the block as bytes
-	u8* bytes = ( u8* )block;
-
-	// write the endpoints
-	bytes[0] = ( u8 )( a & 0xff );
-	bytes[1] = ( u8 )( a >> 8 );
-	bytes[2] = ( u8 )( b & 0xff );
-	bytes[3] = ( u8 )( b >> 8 );
-	
-	// write the indices
-	for( int i = 0; i < 4; ++i )
-	{
-		u8 const* ind = indices + 4*i;
-		bytes[4 + i] = ind[0] | ( ind[1] << 2 ) | ( ind[2] << 4 ) | ( ind[3] << 6 );
-	}
-}
-
-void WriteColourBlock3( Vec3::Arg start, Vec3::Arg end, u8 const* indices, void* block )
-{
-	// get the packed values
-	int a = FloatTo565( start );
-	int b = FloatTo565( end );
-
-	// remap the indices
-	u8 remapped[16];
-	if( a <= b )
-	{
-		// use the indices directly
-		for( int i = 0; i < 16; ++i )
-			remapped[i] = indices[i];
-	}
-	else
-	{
-		// swap a and b
-		std::swap( a, b );
-		for( int i = 0; i < 16; ++i )
-		{
-			if( indices[i] == 0 )
-				remapped[i] = 1;
-			else if( indices[i] == 1 )
-				remapped[i] = 0;
-			else
-				remapped[i] = indices[i];
-		}
-	}
-	
-	// write the block
-	WriteColourBlock( a, b, remapped, block );
-}
-
-void WriteColourBlock4( Vec3::Arg start, Vec3::Arg end, u8 const* indices, void* block )
-{
-	// get the packed values
-	int a = FloatTo565( start );
-	int b = FloatTo565( end );
-
-	// remap the indices
-	u8 remapped[16];
-	if( a < b )
-	{
-		// swap a and b
-		std::swap( a, b );
-		for( int i = 0; i < 16; ++i )
-			remapped[i] = ( indices[i] ^ 0x1 ) & 0x3;
-	}
-	else if( a == b )
-	{
-		// use index 0
-		for( int i = 0; i < 16; ++i )
-			remapped[i] = 0;
-	}
-	else
-	{
-		// use the indices directly
-		for( int i = 0; i < 16; ++i )
-			remapped[i] = indices[i];
-	}
-	
-	// write the block
-	WriteColourBlock( a, b, remapped, block );
-}
-
-static int Unpack565( u8 const* packed, u8* colour )
-{
-	// build the packed value
-	int value = ( int )packed[0] | ( ( int )packed[1] << 8 );
-	
-	// get the components in the stored range
-	u8 red = ( u8 )( ( value >> 11 ) & 0x1f );
-	u8 green = ( u8 )( ( value >> 5 ) & 0x3f );
-	u8 blue = ( u8 )( value & 0x1f );
-
-	// scale up to 8 bits
-	colour[0] = ( red << 3 ) | ( red >> 2 );
-	colour[1] = ( green << 2 ) | ( green >> 4 );
-	colour[2] = ( blue << 3 ) | ( blue >> 2 );
-	colour[3] = 255;
-	
-	// return the value
-	return value;
-}
-
-void DecompressColour( u8* rgba, void const* block, bool isDxt1 )
-{
-	// get the block bytes
-	u8 const* bytes = reinterpret_cast< u8 const* >( block );
-	
-	// unpack the endpoints
-	u8 codes[16];
-	int a = Unpack565( bytes, codes );
-	int b = Unpack565( bytes + 2, codes + 4 );
-	
-	// generate the midpoints
-	for( int i = 0; i < 3; ++i )
-	{
-		int c = codes[i];
-		int d = codes[4 + i];
-
-		if( isDxt1 && a <= b )
-		{
-			codes[8 + i] = ( u8 )( ( c + d )/2 );
-			codes[12 + i] = 0;
-		}
-		else
-		{
-			codes[8 + i] = ( u8 )( ( 2*c + d )/3 );
-			codes[12 + i] = ( u8 )( ( c + 2*d )/3 );
-		}
-	}
-	
-	// fill in alpha for the intermediate values
-	codes[8 + 3] = 255;
-	codes[12 + 3] = ( isDxt1 && a <= b ) ? 0 : 255;
-	
-	// unpack the indices
-	u8 indices[16];
-	for( int i = 0; i < 4; ++i )
-	{
-		u8* ind = indices + 4*i;
-		u8 packed = bytes[4 + i];
-		
-		ind[0] = packed & 0x3;
-		ind[1] = ( packed >> 2 ) & 0x3;
-		ind[2] = ( packed >> 4 ) & 0x3;
-		ind[3] = ( packed >> 6 ) & 0x3;
-	}
-
-	// store out the colours
-	for( int i = 0; i < 16; ++i )
-	{
-		u8 offset = 4*indices[i];
-		for( int j = 0; j < 4; ++j )
-			rgba[4*i + j] = codes[offset + j];
-	}
-}
-
-} // namespace squish