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vncv: remove 16 -> 32 bpp conversion routine

This is wrong, does not take color channel
order into account.

--- a/sys/src/cmd/vnc/color.c

+++ b/sys/src/cmd/vnc/color.c

@@ -108,26 +108,6 @@

 		*dst++ = bgr8[*src++];

 }

-static void

-cvt16to32(uchar *dst, uchar *src, int npixel)

-{

-	uchar *ed;

-	int w, r, g, b;

-

-	ed = dst+npixel*4;

-	while(dst < ed){

-		w = src[1]<<8 | src[0];

-		b = (w >> 11) & 0x1F;

-		g = (w >> 5) & 0x3F;

-		r = (w >> 0) & 0x1F;

-		dst[0] = b<<(8-5);

-		dst[1] = g<<(8-6);

-		dst[2] = r<<(8-5);

-		dst += 4;

-		src += 2;

-	}

-}

-

 void

 choosecolor(Vnc *v)

 {

@@ -140,11 +120,6 @@

 	if((bpp / 8) * 8 != bpp)

 		sysfatal("screen not supported");

-	if(bpp == 32 && v->Pixfmt.bpp == 16){

-		cvtpixels = cvt16to32;

-		goto Done;

-	}

-

 	if(bpp == 24){

 		if(verbose)

 			fprint(2, "24bit emulation using 32bpp\n");

@@ -180,7 +155,6 @@

 	if(v->red.max == 0 || v->green.max == 0 || v->blue.max == 0)

 		sysfatal("screen not supported");

-Done:

 	if(verbose)

 		fprint(2, "%d bpp, %d depth, 0x%lx chan, %d truecolor, %d bigendian\n",

 			v->bpp, v->depth, screen->chan, v->truecolor, v->bigendian);