rlm@1: #include "../Port.h"
rlm@1: 
rlm@1: extern u32 RGB_LOW_BITS_MASK;
rlm@1: 
rlm@1: void Scanlines(u8 *srcPtr, u32 srcPitch, u8 *,
rlm@1:                u8 *dstPtr, u32 dstPitch, int width, int height)
rlm@1: {
rlm@1: 	u8 *nextLine, *finish;
rlm@1: 
rlm@1: 	nextLine = dstPtr + dstPitch;
rlm@1: 
rlm@1: 	do
rlm@1: 	{
rlm@1: 		u32 *bP = (u32 *) srcPtr;
rlm@1: 		u32 *dP = (u32 *) dstPtr;
rlm@1: 		u32 *nL = (u32 *) nextLine;
rlm@1: 		u32	 currentPixel;
rlm@1: 		u32	 nextPixel;
rlm@1: 
rlm@1: 		finish	  = (u8 *) bP + ((width + 2) << 1);
rlm@1: 		nextPixel = *bP++;
rlm@1: 
rlm@1: 		do
rlm@1: 		{
rlm@1: 			currentPixel = nextPixel;
rlm@1: 			nextPixel	 = *bP++;
rlm@1: 			u32 colorA, colorB;
rlm@1: 
rlm@1: #ifdef WORDS_BIGENDIAN
rlm@1: 			colorA = currentPixel >> 16;
rlm@1: 			colorB = currentPixel & 0xffff;
rlm@1: #else
rlm@1: 			colorA = currentPixel & 0xffff;
rlm@1: 			colorB = currentPixel >> 16;
rlm@1: #endif
rlm@1: 
rlm@1: 			*(dP) = colorA | colorA << 16;
rlm@1: 			*(nL) = 0;
rlm@1: 
rlm@1: #ifdef WORDS_BIGENDIAN
rlm@1: 			colorA = nextPixel >> 16;
rlm@1: #else
rlm@1: 			colorA = nextPixel & 0xffff;
rlm@1: #endif
rlm@1: 
rlm@1: 			*(dP + 1) = colorB | (colorB << 16);
rlm@1: 			*(nL + 1) = 0;
rlm@1: 
rlm@1: 			dP += 2;
rlm@1: 			nL += 2;
rlm@1: 		}
rlm@1: 		while ((u8 *) bP < finish);
rlm@1: 
rlm@1: 		srcPtr	 += srcPitch;
rlm@1: 		dstPtr	 += dstPitch << 1;
rlm@1: 		nextLine += dstPitch << 1;
rlm@1: 	}
rlm@1: 	while (--height);
rlm@1: }
rlm@1: 
rlm@1: void Scanlines32(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
rlm@1:                  u8 *dstPtr, u32 dstPitch, int width, int height)
rlm@1: {
rlm@1: 	u8 *nextLine, *finish;
rlm@1: 
rlm@1: 	nextLine = dstPtr + dstPitch;
rlm@1: 
rlm@1: 	do
rlm@1: 	{
rlm@1: 		u32 *bP = (u32 *) srcPtr;
rlm@1: 		u32 *dP = (u32 *) dstPtr;
rlm@1: 		u32 *nL = (u32 *) nextLine;
rlm@1: 		u32	 currentPixel;
rlm@1: 		u32	 nextPixel;
rlm@1: 
rlm@1: 		finish	  = (u8 *) bP + ((width + 1) << 2);
rlm@1: 		nextPixel = *bP++;
rlm@1: 
rlm@1: 		do
rlm@1: 		{
rlm@1: 			currentPixel = nextPixel;
rlm@1: 			nextPixel	 = *bP++;
rlm@1: 
rlm@1: 			u32 colorA, colorB;
rlm@1: 
rlm@1: 			colorA = currentPixel;
rlm@1: 			colorB = nextPixel;
rlm@1: 
rlm@1: 			*(dP)	  = colorA;
rlm@1: 			*(dP + 1) = colorA;
rlm@1: 			*(nL)	  = 0;
rlm@1: 			*(nL + 1) = 0;
rlm@1: 
rlm@1: 			*(dP + 2) = colorB;
rlm@1: 			*(dP + 3) = colorB;
rlm@1: 			*(nL + 2) = 0;
rlm@1: 			*(nL + 3) = 0;
rlm@1: 
rlm@1: 			nextPixel = *bP++;
rlm@1: 
rlm@1: 			dP += 4;
rlm@1: 			nL += 4;
rlm@1: 		}
rlm@1: 		while ((u8 *) bP < finish);
rlm@1: 
rlm@1: 		srcPtr	 += srcPitch;
rlm@1: 		dstPtr	 += dstPitch << 1;
rlm@1: 		nextLine += dstPitch << 1;
rlm@1: 	}
rlm@1: 	while (--height);
rlm@1: }
rlm@1: 
rlm@1: void ScanlinesTV(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
rlm@1:                  u8 *dstPtr, u32 dstPitch, int width, int height)
rlm@1: {
rlm@1: 	u8 *nextLine, *finish;
rlm@1: 	u32 colorMask = ~(RGB_LOW_BITS_MASK | (RGB_LOW_BITS_MASK << 16));
rlm@1: 
rlm@1: 	nextLine = dstPtr + dstPitch;
rlm@1: 
rlm@1: 	do
rlm@1: 	{
rlm@1: 		u32 *bP = (u32 *) srcPtr;
rlm@1: 		u32 *dP = (u32 *) dstPtr;
rlm@1: 		u32 *nL = (u32 *) nextLine;
rlm@1: 		u32	 currentPixel;
rlm@1: 		u32	 nextPixel;
rlm@1: 
rlm@1: 		finish	  = (u8 *) bP + ((width + 2) << 1);
rlm@1: 		nextPixel = *bP++;
rlm@1: 
rlm@1: 		do
rlm@1: 		{
rlm@1: 			currentPixel = nextPixel;
rlm@1: 			nextPixel	 = *bP++;
rlm@1: 
rlm@1: 			u32 colorA, colorB;
rlm@1: 
rlm@1: #ifdef WORDS_BIGENDIAN
rlm@1: 			colorA = currentPixel >> 16;
rlm@1: 			colorB = currentPixel & 0xFFFF;
rlm@1: #else
rlm@1: 			colorA = currentPixel & 0xFFFF;
rlm@1: 			colorB = currentPixel >> 16;
rlm@1: #endif
rlm@1: 
rlm@1: 			*(dP) = colorA = colorA | ((((colorA & colorMask) >> 1) +
rlm@1: 			                            ((colorB & colorMask) >> 1))) << 16;
rlm@1: 			colorA	= ((colorA & colorMask) >> 1);
rlm@1: 			colorA += ((colorA & colorMask) >> 1);
rlm@1: 			*(nL)	= colorA;
rlm@1: 
rlm@1: 			colorA = nextPixel & 0xFFFF;
rlm@1: 
rlm@1: 			*(dP + 1) = colorB = colorB | ((((colorA & colorMask) >> 1) +
rlm@1: 			                                ((colorB & colorMask) >> 1))) << 16;
rlm@1: 			colorB	= ((colorB & colorMask) >> 1);
rlm@1: 			colorB += ((colorB & colorMask) >> 1);
rlm@1: 
rlm@1: 			*(nL + 1) = colorB;
rlm@1: 
rlm@1: 			dP += 2;
rlm@1: 			nL += 2;
rlm@1: 		}
rlm@1: 		while ((u8 *) bP < finish);
rlm@1: 
rlm@1: 		srcPtr	 += srcPitch;
rlm@1: 		dstPtr	 += dstPitch << 1;
rlm@1: 		nextLine += dstPitch << 1;
rlm@1: 	}
rlm@1: 	while (--height);
rlm@1: }
rlm@1: 
rlm@1: void ScanlinesTV32(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,
rlm@1:                    u8 *dstPtr, u32 dstPitch, int width, int height)
rlm@1: {
rlm@1: 	u8 *nextLine, *finish;
rlm@1: 	u32 colorMask = ~RGB_LOW_BITS_MASK;
rlm@1: 
rlm@1: 	nextLine = dstPtr + dstPitch;
rlm@1: 
rlm@1: 	do
rlm@1: 	{
rlm@1: 		u32 *bP = (u32 *) srcPtr;
rlm@1: 		u32 *dP = (u32 *) dstPtr;
rlm@1: 		u32 *nL = (u32 *) nextLine;
rlm@1: 		u32	 currentPixel;
rlm@1: 		u32	 nextPixel;
rlm@1: 
rlm@1: 		finish	  = (u8 *) bP + ((width + 1) << 2);
rlm@1: 		nextPixel = *bP++;
rlm@1: 
rlm@1: 		do
rlm@1: 		{
rlm@1: 			currentPixel = nextPixel;
rlm@1: 			nextPixel	 = *bP++;
rlm@1: 
rlm@1: 			u32 colorA, colorB, temp;
rlm@1: 
rlm@1: 			colorA = currentPixel;
rlm@1: 			colorB = nextPixel;
rlm@1: 
rlm@1: 			*(dP)	  = colorA;
rlm@1: 			*(dP + 1) = temp = ((colorA & colorMask) >> 1) +
rlm@1: 			                   ((colorB & colorMask) >> 1);
rlm@1: 			temp	= ((temp & colorMask) >> 1);
rlm@1: 			temp   += ((temp & colorMask) >> 1);
rlm@1: 			colorA	= ((colorA & colorMask) >> 1);
rlm@1: 			colorA += ((colorA & colorMask) >> 1);
rlm@1: 
rlm@1: 			*(nL)	  = colorA;
rlm@1: 			*(nL + 1) = temp;
rlm@1: 
rlm@1: 			dP += 2;
rlm@1: 			nL += 2;
rlm@1: 		}
rlm@1: 		while ((u8 *) bP < finish);
rlm@1: 
rlm@1: 		srcPtr	 += srcPitch;
rlm@1: 		dstPtr	 += dstPitch << 1;
rlm@1: 		nextLine += dstPitch << 1;
rlm@1: 	}
rlm@1: 	while (--height);
rlm@1: }
rlm@1: