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diff --git a/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_client/hybriderr.cpp b/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_client/hybriderr.cpp
new file mode 100644
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+++ b/TAO/orbsvcs/tests/AVStreams/mpeg/source/mpeg_client/hybriderr.cpp
@@ -0,0 +1,360 @@
+/* $Id$ */
+
+/*
+ * Copyright (c) 1992 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+/* This file contains C code to implement an ordered dither in the
+ luminance channel and F-S error diffusion on chrominance.
+*/
+
+#include "ace/OS.h"
+#include <stdlib.h>
+#include <string.h>
+#include "video.h"
+#include "proto.h"
+#include "dither.h"
+
+ACE_RCSID(mpeg_client, hybriderr, "$Id$")
+
+#define DITH_SIZE 16
+
+/* Structures used for hybrid dither with errors propogated. */
+
+static unsigned char *l_darrays[DITH_SIZE];
+static unsigned char *l_darrays0, *l_darrays1, *l_darrays2, *l_darrays3;
+static unsigned char *l_darrays4, *l_darrays5, *l_darrays6, *l_darrays7;
+static unsigned char *l_darrays8, *l_darrays9, *l_darrays10, *l_darrays11;
+static unsigned char *l_darrays12, *l_darrays13, *l_darrays14, *l_darrays15;
+static unsigned char cr_fsarray[256*256][4];
+static unsigned char cb_fsarray[256*256][4];
+static unsigned short c_fserr[256*256][2];
+
+
+/*
+ *--------------------------------------------------------------
+ *
+ * InitHybridErrorDither--
+ *
+ * Initializes structures used for hybrid dither algorithm
+ * with errors propogated on Cr and Cb.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+InitHybridErrorDither()
+{
+ int i, j, k, err_range, threshval;
+ unsigned char *lmark;
+
+
+ for (i=0; i<DITH_SIZE; i++) {
+ lmark = l_darrays[i] = (unsigned char *) ACE_OS::malloc(256);
+
+ for (j=0; j<lum_values[0]; j++) {
+ *lmark++ = 0;
+ }
+
+ for (j=0; j<(LUM_RANGE-1); j++) {
+ err_range = lum_values[j+1] - lum_values[j];
+ threshval = ((i * err_range) / DITH_SIZE)+lum_values[j];
+
+ for (k=lum_values[j]; k<lum_values[j+1]; k++) {
+ if (k > threshval) *lmark++ = ((j+1) * (CR_RANGE * CB_RANGE));
+ else *lmark++ = (j * (CR_RANGE * CB_RANGE));
+ }
+ }
+
+ for (j=lum_values[LUM_RANGE-1]; j <256; j++) {
+ *lmark++ = (LUM_RANGE-1)*(CR_RANGE * CB_RANGE);
+ }
+ }
+ l_darrays0 = l_darrays[0]; l_darrays8 = l_darrays[8];
+ l_darrays1 = l_darrays[1]; l_darrays9 = l_darrays[9];
+ l_darrays2 = l_darrays[2]; l_darrays10 = l_darrays[10];
+ l_darrays3 = l_darrays[3]; l_darrays11 = l_darrays[11];
+ l_darrays4 = l_darrays[4]; l_darrays12 = l_darrays[12];
+ l_darrays5 = l_darrays[5]; l_darrays13 = l_darrays[13];
+ l_darrays6 = l_darrays[6]; l_darrays14 = l_darrays[14];
+ l_darrays7 = l_darrays[7]; l_darrays15 = l_darrays[15];
+ {
+ int cr1, cr2, cr3, cr4, err1, err2;
+ int cb1, cb2, cb3, cb4, val, nval;
+ int outerr1, outerr2, outerr3, outerr4;
+ int inerr1, inerr2, inerr3, inerr4;
+ unsigned short oe1, oe2, oe3, oe4;
+
+ for (j=0; j<65536; j+= 256) {
+
+ inerr1 = (((j & 0xc000) >> 14)*8) - 12;
+ inerr2 = (((j & 0x3000) >> 12)*8) - 12;
+ inerr3 = (((j & 0x0c00) >> 10)*8) - 12;
+ inerr4 = (((j & 0x0300) >> 8) *8) - 12;
+
+ for (i=0; i<256; i++) {
+ val = i;
+
+ nval = val+inerr1+inerr3;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cr1 = ((nval) * CR_RANGE) / 256;
+ err1 = ((nval) - cr_values[cr1])/2;
+ err2 = ((nval) - cr_values[cr1]) - err1;
+
+ nval = val+err1+inerr2;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cr2 = ((nval) * CR_RANGE) / 256;
+ err1 = ((nval) - cr_values[cr2])/2;
+ outerr3 = ((nval) - cr_values[cr2])-err1;
+
+ nval = val+err2+inerr4;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cr3 = ((nval) * CR_RANGE) / 256;
+ err2 = ((nval) - cr_values[cr3])/2;
+ outerr1 = ((nval) - cr_values[cr3]) - err2;
+
+ nval = val+err1+err2;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cr4 = ((nval) * CR_RANGE) / 256;
+ outerr2 = ((nval) - cr_values[cr4])/2;
+ outerr4 = ((nval) - cr_values[cr4])-outerr2;
+
+ cr_fsarray[i+j][0] = cr1*CB_RANGE;
+ cr_fsarray[i+j][1] = cr2*CB_RANGE;
+ cr_fsarray[i+j][2] = cr3*CB_RANGE;
+ cr_fsarray[i+j][3] = cr4*CB_RANGE;
+
+ if (outerr1 < -16) outerr1++;
+ else if (outerr1 > 15) outerr1--;
+ if (outerr2 < -16) outerr2++;
+ else if (outerr2 > 15) outerr2--;
+ if (outerr3 < -16) outerr3++;
+ else if (outerr3 > 15) outerr3--;
+ if (outerr4 < -16) outerr4++;
+ else if (outerr4 > 15) outerr4--;
+
+ oe1 = (outerr1 + 16) / 8;
+ oe2 = (outerr2 + 16) / 8;
+ oe3 = (outerr3 + 16) / 8;
+ oe4 = (outerr4 + 16) / 8;
+
+/* This is a debugging check and should be removed if not needed. */
+ if ((oe1 > 3) || (oe2 > 3) || (oe3 > 3) || (oe4 > 3))
+ fprintf(stderr, "OE error!!!!\n");
+
+
+ c_fserr[i+j][0] = ((oe1 << 14) | (oe2 << 12));
+
+ c_fserr[i+j][1] = ((oe3 << 10) | (oe4 << 8));
+ }
+
+ for (i=0; i<256; i++) {
+ val = i;
+ nval = val+inerr1+inerr3;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cb1 = ((nval) * CB_RANGE) / 256;
+ err1 = ((nval) - cb_values[cb1])/2;
+ err2 = ((nval) - cb_values[cb1]) - err1;
+
+ nval = val+err1+inerr2;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cb2 = ((nval) * CB_RANGE) / 256;
+ err1 = ((nval) - cb_values[cb2])/2;
+
+ nval = val+err2+inerr4;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cb3 = ((nval) * CB_RANGE) / 256;
+ err2 = ((nval) - cb_values[cb3])/2;
+
+ nval = val+err1+err2;
+ if (nval < 0) nval = 0; else if (nval > 255) nval = 255;
+ cb4 = ((nval) * CB_RANGE) / 256;
+
+ cb_fsarray[i+j][0] = cb1;
+ cb_fsarray[i+j][1] = cb2;
+ cb_fsarray[i+j][2] = cb3;
+ cb_fsarray[i+j][3] = cb4;
+ }
+ }
+ }
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * HybridErrorDitherImage --
+ *
+ * Dithers an image using a hybrid ordered/floyd-steinberg dither.
+ * Assumptions made:
+ * 1) The color space is allocated y:cr:cb = 8:4:4
+ * 2) The spatial resolution of y:cr:cb is 4:1:1
+ * This dither is almost exactly like the dither implemented in the
+ * file odith.c (i.e. hybrid dithering) except a quantized amount of
+ * error is propogated between 2x2 pixel areas in Cr and Cb.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *--------------------------------------------------------------
+ */
+void
+HybridErrorDitherImage (unsigned char *lum, unsigned char *cr,
+ unsigned char *cb, unsigned char *out,
+ int w, int h)
+{
+ unsigned char *l, *r, *b, *o1, *o2;
+ unsigned char *l2;
+ static int *cr_row_errs;
+ static int *cb_row_errs;
+ int *cr_r_err;
+ int *cb_r_err;
+ int cr_c_err;
+ int cb_c_err;
+ unsigned char *cr_fsptr;
+ unsigned char *cb_fsptr;
+ static int first = 1;
+ int cr_code, cb_code;
+
+ int i, j;
+ int row_advance, row_advance2;
+ int half_row_advance, half_row_advance2;
+
+ /* If first time called, allocate error arrays. */
+
+ if (first) {
+ cr_row_errs = (int *) ACE_OS::malloc((w+5)*sizeof(int));
+ cb_row_errs = (int *) ACE_OS::malloc((w+5)*sizeof(int));
+ first = 0;
+ }
+
+ row_advance = (w << 1) - 1;
+ row_advance2 = row_advance+2;
+ half_row_advance = (w>>1)-1;
+ half_row_advance2 = half_row_advance+2;
+
+ l = lum;
+ l2 = lum+w;
+ r = cr;
+ b = cb;
+ o1 = out;
+ o2 = out+w;
+
+ memset( (char *) cr_row_errs, 0, (w+5)*sizeof(int));
+ cr_r_err = cr_row_errs;
+ cr_c_err = 0;
+ memset( (char *) cb_row_errs, 0, (w+5)*sizeof(int));
+ cb_r_err = cb_row_errs;
+ cb_c_err = 0;
+
+ for (i=0; i<h; i+=4) {
+
+ for (j=w; j>0; j-=4) {
+
+ cr_code = (*cr_r_err | cr_c_err | *r++);
+ cb_code = (*cb_r_err | cb_c_err | *b++);
+
+ cr_fsptr = cr_fsarray[cr_code];
+ cb_fsptr = cb_fsarray[cb_code];
+
+ *o1++ = pixel[(l_darrays0[*l++] | *cr_fsptr++ | *cb_fsptr++)];
+ *o1++ = pixel[(l_darrays8[*l++] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2++ = pixel[(l_darrays12[*l2++] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2++ = pixel[(l_darrays4[*l2++] | *cr_fsptr++ | *cb_fsptr++)];
+
+ cr_c_err = c_fserr[cr_code][1];
+ cb_c_err = c_fserr[cb_code][1];
+ *cr_r_err++ = c_fserr[cr_code][0];
+ *cb_r_err++ = c_fserr[cb_code][0];
+ cr_code = (*cr_r_err | cr_c_err | *r++);
+ cb_code = (*cb_r_err | cb_c_err | *b++);
+
+ cr_fsptr = cr_fsarray[cr_code];
+ cb_fsptr = cb_fsarray[cb_code];
+
+ *o1++ = pixel[(l_darrays2[*l++] | *cr_fsptr++ | *cb_fsptr++)];
+ *o1++ = pixel[(l_darrays10[*l++] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2++ = pixel[(l_darrays14[*l2++] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2++ = pixel[(l_darrays6[*l2++] | *cr_fsptr++ | *cb_fsptr++)];
+
+ cr_c_err = c_fserr[cr_code][1];
+ cb_c_err = c_fserr[cb_code][1];
+ *cr_r_err++ = c_fserr[cr_code][0];
+ *cb_r_err++ = c_fserr[cb_code][0];
+ }
+
+ l += row_advance; l2 += row_advance;
+ o1 += row_advance; o2 += row_advance;
+ cr_c_err = 0;
+ cb_c_err = 0;
+ cr_r_err--; cb_r_err--;
+ r += half_row_advance; b += half_row_advance;
+
+ for (j=w; j>0; j-=4) {
+
+ cr_code = (*cr_r_err | cr_c_err | *r--);
+ cb_code = (*cb_r_err | cb_c_err | *b--);
+ cr_fsptr = cr_fsarray[cr_code];
+ cb_fsptr = cb_fsarray[cb_code];
+
+ *o1-- = pixel[(l_darrays9[*l--] | *cr_fsptr++ | *cb_fsptr++)];
+ *o1-- = pixel[(l_darrays1[*l--] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2-- = pixel[(l_darrays5[*l2--] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2-- = pixel[(l_darrays13[*l2--] | *cr_fsptr++ | *cb_fsptr++)];
+
+ cr_c_err = c_fserr[cr_code][1];
+ cb_c_err = c_fserr[cb_code][1];
+ *cr_r_err-- = c_fserr[cr_code][0];
+ *cb_r_err-- = c_fserr[cb_code][0];
+ cr_code = (*cr_r_err | cr_c_err | *r--);
+ cb_code = (*cb_r_err | cb_c_err | *b--);
+ cr_fsptr = cr_fsarray[cr_code];
+ cb_fsptr = cb_fsarray[cb_code];
+
+ *o1-- = pixel[(l_darrays11[*l--] | *cr_fsptr++ | *cb_fsptr++)];
+ *o1-- = pixel[(l_darrays3[*l--] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2-- = pixel[(l_darrays7[*l2--] | *cr_fsptr++ | *cb_fsptr++)];
+ *o2-- = pixel[(l_darrays15[*l2--] | *cr_fsptr++ | *cb_fsptr++)];
+
+ cr_c_err = c_fserr[cr_code][1];
+ cb_c_err = c_fserr[cb_code][1];
+ *cr_r_err-- = c_fserr[cr_code][0];
+ *cb_r_err-- = c_fserr[cb_code][0];
+
+ }
+
+ l += row_advance2; l2 += row_advance2;
+ o1 += row_advance2; o2 += row_advance2;
+ cr_c_err = 0; cb_c_err = 0;
+ cr_r_err++; cb_r_err++;
+ r += half_row_advance2; b += half_row_advance2;
+ }
+}
+
+
+
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