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Revision 4bbff7ba9696eb718d567ff6d2ee988f513af179 authored by Fred Drake on 27 June 2003, 18:27:21 UTC, committed by Fred Drake on 27 June 2003, 18:27:21 UTC
that won't be right when mkhowto is called with --numeric (as it is
for the Python Tutorial).  Save the actual name we use when we build
the table of contents, then use that in the page head metadata.  The
node2label.pl script will munge this properly when --numeric isn't
given, so this works in both cases.
Closes SF bug #761830.
1 parent 78347b5
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Tip revision: 4bbff7ba9696eb718d567ff6d2ee988f513af179 authored by Fred Drake on 27 June 2003, 18:27:21 UTC
Don't assume the name of the table of contents will be contents.html;
Tip revision: 4bbff7b
yuvconvert.c

#include "yuv.h"

void
yuv_sv411_to_cl422dc(int invert, void *data, void *yuv, int width, int height)
{
	struct yuv411 *in = data;
	struct yuv422 *out_even = yuv;
	struct yuv422 *out_odd = out_even + width / 2;
	int i, j;		/* counters */

	for (i = height / 2; i--; ) {
		for (j = width / 4; j--; ) {
			YUV422_Y0(*out_even) = YUV411_Y00(*in);
			YUV422_U0(*out_even) = YUV411_U00(*in);
			YUV422_V0(*out_even) = YUV411_V00(*in);
			YUV422_Y1(*out_even) = YUV411_Y01(*in);
			out_even++;
			YUV422_Y0(*out_even) = YUV411_Y02(*in);
			YUV422_U0(*out_even) = YUV411_U02(*in);
			YUV422_V0(*out_even) = YUV411_V02(*in);
			YUV422_Y1(*out_even) = YUV411_Y03(*in);
			out_even++;
			YUV422_Y0(*out_odd) = YUV411_Y10(*in);
			YUV422_U0(*out_odd) = YUV411_U10(*in);
			YUV422_V0(*out_odd) = YUV411_V10(*in);
			YUV422_Y1(*out_odd) = YUV411_Y11(*in);
			out_odd++;
			YUV422_Y0(*out_odd) = YUV411_Y12(*in);
			YUV422_U0(*out_odd) = YUV411_U12(*in);
			YUV422_V0(*out_odd) = YUV411_V12(*in);
			YUV422_Y1(*out_odd) = YUV411_Y13(*in);
			out_odd++;
			in++;
		}
		out_even += width / 2;
		out_odd += width / 2;
	}
}

void
yuv_sv411_to_cl422dc_quartersize(int invert, void *data, void *yuv,
				 int width, int height)
{
	int w4 = width / 4;	/* quarter of width is used often */
	struct yuv411 *in_even = data;
	struct yuv411 *in_odd = in_even + w4;
	struct yuv422 *out_even = yuv;
	struct yuv422 *out_odd = out_even + w4;
	int i, j;		/* counters */
	int u, v;		/* U and V values */

	for (i = height / 4; i--; ) {
		for (j = w4; j--; ) {
			u = YUV411_U00(*in_even);
			v = YUV411_V00(*in_even);

			YUV422_Y0(*out_even) = YUV411_Y00(*in_even);
			YUV422_U0(*out_even) = u;
			YUV422_V0(*out_even) = v;
			YUV422_Y1(*out_even) = YUV411_Y02(*in_even);

			YUV422_Y0(*out_odd) = YUV411_Y10(*in_odd);
			YUV422_U0(*out_odd) = u;
			YUV422_V0(*out_odd) = v;
			YUV422_Y1(*out_odd) = YUV411_Y12(*in_odd);

			in_even++;
			in_odd++;
			out_even++;
			out_odd++;
		}
		in_even += w4;
		in_odd += w4;
		out_even += w4;
		out_odd += w4;
	}
}

void
yuv_sv411_to_cl422dc_sixteenthsize(int invert, void *data, void *yuv,
				   int width, int height)
{
	int w4_3 = 3 * width / 4; /* three quarters of width is used often */
	int w8 = width / 8;	/* and so is one eighth */
	struct yuv411 *in_even = data;
	struct yuv411 *in_odd = in_even + width / 2;
	struct yuv422 *out_even = yuv;
	struct yuv422 *out_odd = out_even + w8;
	int i, j;		/* counters */
	int u, v;		/* U and V values */

	for (i = height / 8; i--; ) {
		for (j = w8; j--; ) {
			u = YUV411_U00(in_even[0]);
			v = YUV411_V00(in_even[0]);

			YUV422_Y0(*out_even) = YUV411_Y00(in_even[0]);
			YUV422_U0(*out_even) = u;
			YUV422_V0(*out_even) = v;
			YUV422_Y1(*out_even) = YUV411_Y00(in_even[1]);

			YUV422_Y0(*out_odd) = YUV411_Y00(in_odd[0]);
			YUV422_U0(*out_odd) = u;
			YUV422_V0(*out_odd) = v;
			YUV422_Y1(*out_odd) = YUV411_Y00(in_even[1]);

			in_even += 2;
			in_odd += 2;
			out_even++;
			out_odd++;
		}
		in_even += w4_3;
		in_odd += w4_3;
		out_even += w8;
		out_odd += w8;
	}
}
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