[
AC_MSG_WARN(building broken plugins)
USE_VGA="yes"
+ USE_XMMS="yes"
dnl AC_MSG_NOTICE(actually there are no broken plugins at the moment)
],[
USE_VGA="no"
+ USE_XMMS="no"
AC_MSG_NOTICE(not building broken plugins)
])
smooth smoothwave spectrum speed stereo stereomono\
synaesthesia udp videoscale volenv volume vumeter wavparse y4m"
-GST_PLUGINS_ALL=""
-
AC_SUBST(GST_PLUGINS_ALL)
GST_PLUGINS_SELECTED=""
dnl someone should fix this test/misc/Makefile
dnl wtay fix this: testsuite/threads/Makefile
dnl testsuite/refcounting/Makefile
-dnl libs/Makefile
-dnl libs/riff/Makefile
-dnl libs/getbits/Makefile
-dnl libs/putbits/Makefile
-dnl libs/idct/Makefile
-dnl libs/audio/Makefile
-dnl libs/bytestream/Makefile
-dnl libs/control/Makefile
-dnl libs/resample/Makefile
dnl stamp.h
dnl echo "$infomessages", infomessages="$infomessages"
-PLUGIN_GST_MAKEFILES="\
-gst/ac3parse/Makefile \
-gst/adder/Makefile \
-gst/audioscale/Makefile \
-gst/auparse/Makefile \
-gst/avi/Makefile \
-gst/chart/Makefile \
-gst/cutter/Makefile \
-gst/deinterlace/Makefile \
-gst/flx/Makefile \
-gst/intfloat/Makefile \
-gst/law/Makefile \
-gst/level/Makefile \
-gst/median/Makefile \
-gst/mpeg1enc/Makefile \
-gst/mpeg1sys/Makefile \
-gst/mpeg2enc/Makefile \
-gst/mpeg2sub/Makefile \
-gst/mpegaudio/Makefile \
-gst/mpegaudioparse/Makefile \
-gst/mpegstream/Makefile \
-gst/mpegtypes/Makefile \
-gst/passthrough/Makefile \
-gst/playondemand/Makefile \
-gst/rtjpeg/Makefile \
-gst/silence/Makefile \
-gst/sine/Makefile \
-gst/smooth/Makefile \
-gst/smoothwave/Makefile \
-gst/spectrum/Makefile \
-gst/speed/Makefile \
-gst/stereo/Makefile \
-gst/stereomono/Makefile \
-gst/synaesthesia/Makefile \
-gst/udp/Makefile \
-gst/videoscale/Makefile \
-gst/volenv/Makefile \
-gst/volume/Makefile \
-gst/vumeter/Makefile \
-gst/wavparse/Makefile \
-gst/y4m/Makefile"
-
-dnl $PLUGIN_GST_MAKEFILES
AC_OUTPUT(
Makefile
gst/Makefile
+gst/ac3parse/Makefile
+gst/adder/Makefile
+gst/audioscale/Makefile
+gst/auparse/Makefile
+gst/avi/Makefile
+gst/chart/Makefile
+gst/cutter/Makefile
+gst/deinterlace/Makefile
+gst/flx/Makefile
+gst/intfloat/Makefile
+gst/law/Makefile
+gst/level/Makefile
+gst/median/Makefile
+gst/mpeg1enc/Makefile
+gst/mpeg1sys/Makefile
+gst/mpeg2enc/Makefile
+gst/mpeg2sub/Makefile
+gst/mpegaudio/Makefile
+gst/mpegaudioparse/Makefile
+gst/mpegstream/Makefile
+gst/mpegtypes/Makefile
+gst/passthrough/Makefile
+gst/playondemand/Makefile
+gst/rtjpeg/Makefile
+gst/silence/Makefile
+gst/sine/Makefile
+gst/smooth/Makefile
+gst/smoothwave/Makefile
+gst/spectrum/Makefile
+gst/speed/Makefile
+gst/stereo/Makefile
+gst/stereomono/Makefile
+gst/synaesthesia/Makefile
+gst/udp/Makefile
+gst/videoscale/Makefile
+gst/volenv/Makefile
+gst/volume/Makefile
+gst/vumeter/Makefile
+gst/wavparse/Makefile
+gst/y4m/Makefile
sys/Makefile
sys/oss/Makefile
sys/qcam/Makefile
gst-libs/Makefile
gst-libs/gst/Makefile
gst-libs/gst/audio/Makefile
+gst-libs/gst/idct/Makefile
gst-libs/gst/resample/Makefile
gst-libs/gst/riff/Makefile
gst-plugins.spec
-SUBDIRS = audio resample riff
-# riff getbits putbits idct bytestream control resample
+SUBDIRS = audio idct resample riff
-DIST_SUBDIRS = audio resample riff
-# riff getbits putbits idct bytestream control resample
+DIST_SUBDIRS = audio idct resample riff
--- /dev/null
+This archive contains a quick & dirty implementation of the IEEE Standard
+1180-1990 accuracy test for inverse DCT. It is not guaranteed to be
+correct ... but if you find any bugs, please let me know (by email to
+tgl@cs.cmu.edu).
+
+The test harness consists of the C program ieeetest.c and shell script
+doieee. For comparison purposes I have also supplied a copy of jrevdct.c,
+the inverse DCT routine from release 4 of the Independent JPEG Group's
+free JPEG software. (jrevdct.c is slightly modified from the IJG release
+so that it will compile without the IJG include files.) jrevdct.c passes
+the 1180 test --- or at least, this program thinks so. jrevdct.out is
+the output from a test run.
+
+Note that numerical results may vary somewhat across machines. This appears
+to be mostly due to differing results from the cosine function.
+
+
+INSTALLATION:
+ Check the Makefile, change CC and CFLAGS if needed. Then say "make".
+If your C compiler is non-ANSI, you may need to change includes and/or
+function headers.
+
+ To test a different IDCT routine, link with that routine instead of
+jrevdct.o. You will need to modify dct.h and/or ieeetest.c if your
+routine's calling convention is not in-place modification of an array
+of 64 "short"s.
+
+
+USAGE:
+ The standard test procedure is
+ doieee ieeetest >outputfile
+Expect it to take a while (almost 80 minutes on my old 68030 box).
+Each of the six passes will emit a row of 100 dots as it runs.
+
+You can grep the output for the word FAILS if you just want to know
+yea or nay.
+
+
+LEGAL MUMBO-JUMBO:
+ I hereby release the test harness to the public domain.
+ Thomas G. Lane, 22 Nov 1993
+
+IMPORTANT: jrevdct.c is NOT public domain, but is copyrighted free software
+(not the same thing at all). It is subject to IJG's distribution terms, which
+primarily state that if you incorporate it into a program you must acknowledge
+IJG's contribution in your program documentation. For more details and the
+complete IJG software, see the IJG FTP archive at ftp.uu.net, in directory
+/graphics/jpeg.
--- /dev/null
+/* define DCT types */
+
+#include "config.h"
+
+/*
+ * DCTSIZE underlying (1d) transform size
+ * DCTSIZE2 DCTSIZE squared
+ */
+
+#define DCTSIZE (8)
+#define DCTSIZE2 (DCTSIZE*DCTSIZE)
+
+#define EIGHT_BIT_SAMPLES /* needed in jrevdct.c */
+
+typedef short DCTELEM; /* must be at least 16 bits */
+
+typedef DCTELEM DCTBLOCK[DCTSIZE2];
+
+typedef long INT32; /* must be at least 32 bits */
+
+extern void gst_idct_int_idct();
+
+extern void gst_idct_init_fast_int_idct (void);
+extern void gst_idct_fast_int_idct (short *block);
+
+#ifdef HAVE_LIBMMX
+extern void gst_idct_mmx_idct (short *block);
+extern void gst_idct_mmx32_idct (short *block);
+extern void gst_idct_sse_idct (short *block);
+#endif /* HAVE_LIBMMX */
+
+extern void gst_idct_init_float_idct(void);
+extern void gst_idct_float_idct (short *block);
+
--- /dev/null
+# perform IEEE 1180 test series
+# Typical usage:
+# doieee >outfile
+# where progname is ieeetest or a variant
+
+for i in 1 2 3 4 5;
+do
+time ./ieeetest $i -256 255 1 10000
+time ./ieeetest $i -5 5 1 10000
+time ./ieeetest $i -300 300 1 10000
+
+time ./ieeetest $i -256 255 -1 10000
+time ./ieeetest $i -5 5 -1 10000
+time ./ieeetest $i -300 300 -1 10000
+done
--- /dev/null
+/* idct.c, inverse fast discrete cosine transform */
+
+/* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
+
+/*
+ * Disclaimer of Warranty
+ *
+ * These software programs are available to the user without any license fee or
+ * royalty on an "as is" basis. The MPEG Software Simulation Group disclaims
+ * any and all warranties, whether express, implied, or statuary, including any
+ * implied warranties or merchantability or of fitness for a particular
+ * purpose. In no event shall the copyright-holder be liable for any
+ * incidental, punitive, or consequential damages of any kind whatsoever
+ * arising from the use of these programs.
+ *
+ * This disclaimer of warranty extends to the user of these programs and user's
+ * customers, employees, agents, transferees, successors, and assigns.
+ *
+ * The MPEG Software Simulation Group does not represent or warrant that the
+ * programs furnished hereunder are free of infringement of any third-party
+ * patents.
+ *
+ * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
+ * are subject to royalty fees to patent holders. Many of these patents are
+ * general enough such that they are unavoidable regardless of implementation
+ * design.
+ *
+ */
+
+/**********************************************************/
+/* inverse two dimensional DCT, Chen-Wang algorithm */
+/* (cf. IEEE ASSP-32, pp. 803-816, Aug. 1984) */
+/* 32-bit integer arithmetic (8 bit coefficients) */
+/* 11 mults, 29 adds per DCT */
+/* sE, 18.8.91 */
+/**********************************************************/
+/* coefficients extended to 12 bit for IEEE1180-1990 */
+/* compliance sE, 2.1.94 */
+/**********************************************************/
+
+/* this code assumes >> to be a two's-complement arithmetic */
+/* right shift: (-2)>>1 == -1 , (-3)>>1 == -2 */
+
+#define W1 2841 /* 2048*sqrt(2)*cos(1*pi/16) */
+#define W2 2676 /* 2048*sqrt(2)*cos(2*pi/16) */
+#define W3 2408 /* 2048*sqrt(2)*cos(3*pi/16) */
+#define W5 1609 /* 2048*sqrt(2)*cos(5*pi/16) */
+#define W6 1108 /* 2048*sqrt(2)*cos(6*pi/16) */
+#define W7 565 /* 2048*sqrt(2)*cos(7*pi/16) */
+
+#include "dct.h"
+
+/* private data */
+static short iclip[1024]; /* clipping table */
+static short *iclp;
+
+/* private prototypes */
+static void idctrow (short *blk);
+static void idctcol (short *blk);
+
+/* row (horizontal) IDCT
+ *
+ * 7 pi 1
+ * dst[k] = sum c[l] * src[l] * cos( -- * ( k + - ) * l )
+ * l=0 8 2
+ *
+ * where: c[0] = 128
+ * c[1..7] = 128*sqrt(2)
+ */
+
+static void idctrow(blk)
+short *blk;
+{
+ int x0, x1, x2, x3, x4, x5, x6, x7, x8;
+
+ /* shortcut */
+ if (!((x1 = blk[4]<<11) | (x2 = blk[6]) | (x3 = blk[2]) |
+ (x4 = blk[1]) | (x5 = blk[7]) | (x6 = blk[5]) | (x7 = blk[3])))
+ {
+ blk[0]=blk[1]=blk[2]=blk[3]=blk[4]=blk[5]=blk[6]=blk[7]=blk[0]<<3;
+ return;
+ }
+
+ x0 = (blk[0]<<11) + 128; /* for proper rounding in the fourth stage */
+
+ /* first stage */
+ x8 = W7*(x4+x5);
+ x4 = x8 + (W1-W7)*x4;
+ x5 = x8 - (W1+W7)*x5;
+ x8 = W3*(x6+x7);
+ x6 = x8 - (W3-W5)*x6;
+ x7 = x8 - (W3+W5)*x7;
+
+ /* second stage */
+ x8 = x0 + x1;
+ x0 -= x1;
+ x1 = W6*(x3+x2);
+ x2 = x1 - (W2+W6)*x2;
+ x3 = x1 + (W2-W6)*x3;
+ x1 = x4 + x6;
+ x4 -= x6;
+ x6 = x5 + x7;
+ x5 -= x7;
+
+ /* third stage */
+ x7 = x8 + x3;
+ x8 -= x3;
+ x3 = x0 + x2;
+ x0 -= x2;
+ x2 = (181*(x4+x5)+128)>>8;
+ x4 = (181*(x4-x5)+128)>>8;
+
+ /* fourth stage */
+ blk[0] = (x7+x1)>>8;
+ blk[1] = (x3+x2)>>8;
+ blk[2] = (x0+x4)>>8;
+ blk[3] = (x8+x6)>>8;
+ blk[4] = (x8-x6)>>8;
+ blk[5] = (x0-x4)>>8;
+ blk[6] = (x3-x2)>>8;
+ blk[7] = (x7-x1)>>8;
+}
+
+/* column (vertical) IDCT
+ *
+ * 7 pi 1
+ * dst[8*k] = sum c[l] * src[8*l] * cos( -- * ( k + - ) * l )
+ * l=0 8 2
+ *
+ * where: c[0] = 1/1024
+ * c[1..7] = (1/1024)*sqrt(2)
+ */
+static void idctcol(blk)
+short *blk;
+{
+ int x0, x1, x2, x3, x4, x5, x6, x7, x8;
+
+ /* shortcut */
+ if (!((x1 = (blk[8*4]<<8)) | (x2 = blk[8*6]) | (x3 = blk[8*2]) |
+ (x4 = blk[8*1]) | (x5 = blk[8*7]) | (x6 = blk[8*5]) | (x7 = blk[8*3])))
+ {
+ blk[8*0]=blk[8*1]=blk[8*2]=blk[8*3]=blk[8*4]=blk[8*5]=blk[8*6]=blk[8*7]=
+ iclp[(blk[8*0]+32)>>6];
+ return;
+ }
+
+ x0 = (blk[8*0]<<8) + 8192;
+
+ /* first stage */
+ x8 = W7*(x4+x5) + 4;
+ x4 = (x8+(W1-W7)*x4)>>3;
+ x5 = (x8-(W1+W7)*x5)>>3;
+ x8 = W3*(x6+x7) + 4;
+ x6 = (x8-(W3-W5)*x6)>>3;
+ x7 = (x8-(W3+W5)*x7)>>3;
+
+ /* second stage */
+ x8 = x0 + x1;
+ x0 -= x1;
+ x1 = W6*(x3+x2) + 4;
+ x2 = (x1-(W2+W6)*x2)>>3;
+ x3 = (x1+(W2-W6)*x3)>>3;
+ x1 = x4 + x6;
+ x4 -= x6;
+ x6 = x5 + x7;
+ x5 -= x7;
+
+ /* third stage */
+ x7 = x8 + x3;
+ x8 -= x3;
+ x3 = x0 + x2;
+ x0 -= x2;
+ x2 = (181*(x4+x5)+128)>>8;
+ x4 = (181*(x4-x5)+128)>>8;
+
+ /* fourth stage */
+ blk[8*0] = iclp[(x7+x1)>>14];
+ blk[8*1] = iclp[(x3+x2)>>14];
+ blk[8*2] = iclp[(x0+x4)>>14];
+ blk[8*3] = iclp[(x8+x6)>>14];
+ blk[8*4] = iclp[(x8-x6)>>14];
+ blk[8*5] = iclp[(x0-x4)>>14];
+ blk[8*6] = iclp[(x3-x2)>>14];
+ blk[8*7] = iclp[(x7-x1)>>14];
+}
+
+/* two dimensional inverse discrete cosine transform */
+void gst_idct_fast_int_idct(block)
+short *block;
+{
+ int i;
+
+ for (i=0; i<8; i++)
+ idctrow(block+8*i);
+
+ for (i=0; i<8; i++)
+ idctcol(block+i);
+}
+
+void gst_idct_init_fast_int_idct()
+{
+ int i;
+
+ iclp = iclip+512;
+ for (i= -512; i<512; i++)
+ iclp[i] = (i<-256) ? -256 : ((i>255) ? 255 : i);
+}
--- /dev/null
+/* Reference_IDCT.c, Inverse Discrete Fourier Transform, double precision */
+
+/* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved. */
+
+/*
+ * Disclaimer of Warranty
+ *
+ * These software programs are available to the user without any license fee or
+ * royalty on an "as is" basis. The MPEG Software Simulation Group disclaims
+ * any and all warranties, whether express, implied, or statuary, including any
+ * implied warranties or merchantability or of fitness for a particular
+ * purpose. In no event shall the copyright-holder be liable for any
+ * incidental, punitive, or consequential damages of any kind whatsoever
+ * arising from the use of these programs.
+ *
+ * This disclaimer of warranty extends to the user of these programs and user's
+ * customers, employees, agents, transferees, successors, and assigns.
+ *
+ * The MPEG Software Simulation Group does not represent or warrant that the
+ * programs furnished hereunder are free of infringement of any third-party
+ * patents.
+ *
+ * Commercial implementations of MPEG-1 and MPEG-2 video, including shareware,
+ * are subject to royalty fees to patent holders. Many of these patents are
+ * general enough such that they are unavoidable regardless of implementation
+ * design.
+ *
+ */
+
+/* Perform IEEE 1180 reference (64-bit floating point, separable 8x1
+ * direct matrix multiply) Inverse Discrete Cosine Transform
+*/
+
+
+/* Here we use math.h to generate constants. Compiler results may
+ vary a little */
+
+#include <math.h>
+
+#ifndef PI
+# ifdef M_PI
+# define PI M_PI
+# else
+# define PI 3.14159265358979323846
+# endif
+#endif
+
+/* private data */
+
+/* cosine transform matrix for 8x1 IDCT */
+static double gst_idct_float_c[8][8];
+
+/* initialize DCT coefficient matrix */
+
+void gst_idct_init_float_idct()
+{
+ int freq, time;
+ double scale;
+
+ for (freq=0; freq < 8; freq++)
+ {
+ scale = (freq == 0) ? sqrt(0.125) : 0.5;
+ for (time=0; time<8; time++)
+ gst_idct_float_c[freq][time] = scale*cos((PI/8.0)*freq*(time + 0.5));
+ }
+}
+
+/* perform IDCT matrix multiply for 8x8 coefficient block */
+
+void gst_idct_float_idct(block)
+short *block;
+{
+ int i, j, k, v;
+ double partial_product;
+ double tmp[64];
+
+ for (i=0; i<8; i++)
+ for (j=0; j<8; j++)
+ {
+ partial_product = 0.0;
+
+ for (k=0; k<8; k++)
+ partial_product+= gst_idct_float_c[k][j]*block[8*i+k];
+
+ tmp[8*i+j] = partial_product;
+ }
+
+ /* Transpose operation is integrated into address mapping by switching
+ loop order of i and j */
+
+ for (j=0; j<8; j++)
+ for (i=0; i<8; i++)
+ {
+ partial_product = 0.0;
+
+ for (k=0; k<8; k++)
+ partial_product+= gst_idct_float_c[k][i]*tmp[8*k+j];
+
+ v = (int) floor(partial_product+0.5);
+ block[8*i+j] = (v<-256) ? -256 : ((v>255) ? 255 : v);
+ }
+}
--- /dev/null
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#ifndef __GST_IDCT_H__
+#define __GST_IDCT_H__
+
+#include <glib.h>
+
+typedef enum {
+ GST_IDCT_DEFAULT,
+ GST_IDCT_INT,
+ GST_IDCT_FAST_INT,
+ GST_IDCT_FLOAT,
+ GST_IDCT_MMX,
+ GST_IDCT_MMX32,
+ GST_IDCT_SSE,
+} GstIDCTMethod;
+
+typedef struct _GstIDCT GstIDCT;
+typedef void (*GstIDCTFunction) (gshort *block);
+
+#define GST_IDCT_TRANSPOSE(idct) ((idct)->need_transpose)
+
+struct _GstIDCT {
+ /* private */
+ GstIDCTFunction convert;
+ GstIDCTFunction convert_sparse;
+ gboolean need_transpose;
+};
+
+
+GstIDCT *gst_idct_new(GstIDCTMethod method);
+#define gst_idct_convert(idct, blocks) (idct)->convert((blocks))
+#define gst_idct_convert_sparse(idct, blocks) (idct)->convert_sparse((blocks))
+void gst_idct_destroy(GstIDCT *idct);
+
+#endif /* __GST_IDCT_H__ */
--- /dev/null
+/*
+ * ieeetest.c --- test IDCT code against the IEEE Std 1180-1990 spec
+ *
+ * Note that this does only one pass of the test.
+ * Six invocations of ieeetest are needed to complete the entire spec.
+ * The shell script "doieee" performs the complete test.
+ *
+ * Written by Tom Lane (tgl@cs.cmu.edu).
+ * Released to public domain 11/22/93.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include <gst/gst.h>
+#include "gstidct.h"
+#include "dct.h"
+
+
+/* prototypes */
+
+void usage (char *msg);
+long ieeerand (long L, long H);
+void dct_init(void);
+void ref_fdct(DCTELEM block[8][8]);
+void ref_idct(DCTELEM block[8][8]);
+
+/* error stat accumulators -- assume initialized to 0 */
+
+long sumerrs[DCTSIZE2];
+long sumsqerrs[DCTSIZE2];
+int maxerr[DCTSIZE2];
+
+
+char * meets (double val, double limit)
+{
+ return ((fabs(val) <= limit) ? "meets" : "FAILS");
+}
+
+int
+main(int argc, char **argv)
+{
+ long minpix, maxpix, sign;
+ long curiter, niters;
+ int i, j;
+ double max, total;
+ int method;
+ DCTELEM block[DCTSIZE2]; /* random source data */
+ DCTELEM refcoefs[DCTSIZE2]; /* coefs from reference FDCT */
+ DCTELEM refout[DCTSIZE2]; /* output from reference IDCT */
+ DCTELEM testout[DCTSIZE2]; /* output from test IDCT */
+ GstIDCT *idct;
+ guint64 tscstart, tscmin = ~0, tscmax = 0;
+ guint64 tscstop;
+
+ /* Argument parsing --- not very bulletproof at all */
+
+ if (argc != 6) usage(NULL);
+
+ method = atoi(argv[1]);
+ minpix = atoi(argv[2]);
+ maxpix = atoi(argv[3]);
+ sign = atoi(argv[4]);
+ niters = atol(argv[5]);
+
+ gst_library_load("gstidct");
+
+ idct = gst_idct_new(method);
+ if (idct == 0) {
+ printf("method not available\n\n\n");
+
+ return 0;
+ }
+
+ dct_init();
+
+ /* Loop once per generated random-data block */
+
+ for (curiter = 0; curiter < niters; curiter++) {
+
+ /* generate a pseudo-random block of data */
+ for (i = 0; i < DCTSIZE2; i++)
+ block[i] = (DCTELEM) (ieeerand(-minpix,maxpix) * sign);
+
+ /* perform reference FDCT */
+ memcpy(refcoefs, block, sizeof(DCTELEM)*DCTSIZE2);
+ ref_fdct(refcoefs);
+ /* clip */
+ for (i = 0; i < DCTSIZE2; i++) {
+ if (refcoefs[i] < -2048) refcoefs[i] = -2048;
+ else if (refcoefs[i] > 2047) refcoefs[i] = 2047;
+ }
+
+ /* perform reference IDCT */
+ memcpy(refout, refcoefs, sizeof(DCTELEM)*DCTSIZE2);
+ ref_idct(refout);
+ /* clip */
+ for (i = 0; i < DCTSIZE2; i++) {
+ if (refout[i] < -256) refout[i] = -256;
+ else if (refout[i] > 255) refout[i] = 255;
+ }
+
+ /* perform test IDCT */
+ if (GST_IDCT_TRANSPOSE(idct)) {
+ for (j = 0; j < DCTSIZE; j++) {
+ for (i = 0; i < DCTSIZE; i++) {
+ testout[i*DCTSIZE+j] = refcoefs[j*DCTSIZE+i];
+ }
+ }
+ }
+ else {
+ memcpy(testout, refcoefs, sizeof(DCTELEM)*DCTSIZE2);
+ }
+
+ gst_trace_read_tsc(&tscstart);
+ gst_idct_convert(idct, testout);
+ gst_trace_read_tsc(&tscstop);
+ //printf("time %llu, %llu %lld\n", tscstart, tscstop, tscstop-tscstart);
+ if (tscstop - tscstart < tscmin) tscmin = tscstop-tscstart;
+ if (tscstop - tscstart > tscmax) tscmax = tscstop-tscstart;
+
+ /* clip */
+ for (i = 0; i < DCTSIZE2; i++) {
+ if (testout[i] < -256) testout[i] = -256;
+ else if (testout[i] > 255) testout[i] = 255;
+ }
+
+ /* accumulate error stats */
+ for (i = 0; i < DCTSIZE2; i++) {
+ register int err = testout[i] - refout[i];
+ sumerrs[i] += err;
+ sumsqerrs[i] += err * err;
+ if (err < 0) err = -err;
+ if (maxerr[i] < err) maxerr[i] = err;
+ }
+
+ if (curiter % 100 == 99) {
+ fprintf(stderr, ".");
+ fflush(stderr);
+ }
+ }
+ fprintf(stderr, "\n");
+
+ /* print results */
+
+ printf("IEEE test conditions: -L = %ld, +H = %ld, sign = %ld, #iters = %ld\n",
+ minpix, maxpix, sign, niters);
+
+ printf("Speed, min time %lld, max %lld\n", tscmin, tscmax);
+
+ printf("Peak absolute values of errors:\n");
+ for (i = 0, j = 0; i < DCTSIZE2; i++) {
+ if (j < maxerr[i]) j = maxerr[i];
+ printf("%4d", maxerr[i]);
+ if ((i%DCTSIZE) == DCTSIZE-1) printf("\n");
+ }
+ printf("Worst peak error = %d (%s spec limit 1)\n\n", j,
+ meets((double) j, 1.0));
+
+ printf("Mean square errors:\n");
+ max = total = 0.0;
+ for (i = 0; i < DCTSIZE2; i++) {
+ double err = (double) sumsqerrs[i] / ((double) niters);
+ total += (double) sumsqerrs[i];
+ if (max < err) max = err;
+ printf(" %8.4f", err);
+ if ((i%DCTSIZE) == DCTSIZE-1) printf("\n");
+ }
+ printf("Worst pmse = %.6f (%s spec limit 0.06)\n", max, meets(max, 0.06));
+ total /= (double) (64*niters);
+ printf("Overall mse = %.6f (%s spec limit 0.02)\n\n", total,
+ meets(total, 0.02));
+
+ printf("Mean errors:\n");
+ max = total = 0.0;
+ for (i = 0; i < DCTSIZE2; i++) {
+ double err = (double) sumerrs[i] / ((double) niters);
+ total += (double) sumerrs[i];
+ printf(" %8.4f", err);
+ if (err < 0.0) err = -err;
+ if (max < err) max = err;
+ if ((i%DCTSIZE) == DCTSIZE-1) printf("\n");
+ }
+ printf("Worst mean error = %.6f (%s spec limit 0.015)\n", max,
+ meets(max, 0.015));
+ total /= (double) (64*niters);
+ printf("Overall mean error = %.6f (%s spec limit 0.0015)\n\n", total,
+ meets(total, 0.0015));
+
+ /* test for 0 input giving 0 output */
+ memset(testout, 0, sizeof(DCTELEM)*DCTSIZE2);
+ gst_idct_convert(idct, testout);
+ for (i = 0, j=0; i < DCTSIZE2; i++) {
+ if (testout[i]) {
+ printf("Position %d of IDCT(0) = %d (FAILS)\n", i, testout[i]);
+ j++;
+ }
+ }
+ printf("%d elements of IDCT(0) were not zero\n\n\n", j);
+
+ exit(0);
+ return 0;
+}
+
+
+void usage (char *msg)
+{
+ if (msg != NULL)
+ fprintf(stderr, "\nerror: %s\n", msg);
+
+ fprintf(stderr, "\n");
+ fprintf(stderr, "usage: ieeetest minpix maxpix sign niters\n");
+ fprintf(stderr, "\n");
+ fprintf(stderr, " test = 1 - 5\n");
+ fprintf(stderr, " minpix = -L value per IEEE spec\n");
+ fprintf(stderr, " maxpix = H value per IEEE spec\n");
+ fprintf(stderr, " sign = +1 for normal, -1 to run negated test\n");
+ fprintf(stderr, " niters = # iterations (10000 for full test)\n");
+ fprintf(stderr, "\n");
+
+ exit(1);
+}
+
+
+/* Pseudo-random generator specified by IEEE 1180 */
+
+long ieeerand (long L, long H)
+{
+ static long randx = 1;
+ static double z = (double) 0x7fffffff;
+
+ long i,j;
+ double x;
+
+ randx = (randx * 1103515245) + 12345;
+ i = randx & 0x7ffffffe;
+ x = ((double) i) / z;
+ x *= (L+H+1);
+ j = x;
+ return j-L;
+}
+
+
+/* Reference double-precision FDCT and IDCT */
+
+
+/* The cosine lookup table */
+/* coslu[a][b] = C(b)/2 * cos[(2a+1)b*pi/16] */
+double coslu[8][8];
+
+
+/* Routine to initialise the cosine lookup table */
+void dct_init(void)
+{
+ int a,b;
+ double tmp;
+
+ for(a=0;a<8;a++)
+ for(b=0;b<8;b++) {
+ tmp = cos((double)((a+a+1)*b) * (3.14159265358979323846 / 16.0));
+ if(b==0)
+ tmp /= sqrt(2.0);
+ coslu[a][b] = tmp * 0.5;
+ }
+}
+
+
+void ref_fdct (DCTELEM block[8][8])
+{
+ int x,y,u,v;
+ double tmp, tmp2;
+ double res[8][8];
+
+ for (v=0; v<8; v++) {
+ for (u=0; u<8; u++) {
+ tmp = 0.0;
+ for (y=0; y<8; y++) {
+ tmp2 = 0.0;
+ for (x=0; x<8; x++) {
+ tmp2 += (double) block[y][x] * coslu[x][u];
+ }
+ tmp += coslu[y][v] * tmp2;
+ }
+ res[v][u] = tmp;
+ }
+ }
+
+ for (v=0; v<8; v++) {
+ for (u=0; u<8; u++) {
+ tmp = res[v][u];
+ if (tmp < 0.0) {
+ x = - ((int) (0.5 - tmp));
+ } else {
+ x = (int) (tmp + 0.5);
+ }
+ block[v][u] = (DCTELEM) x;
+ }
+ }
+}
+
+
+void ref_idct (DCTELEM block[8][8])
+{
+ int x,y,u,v;
+ double tmp, tmp2;
+ double res[8][8];
+
+ for (y=0; y<8; y++) {
+ for (x=0; x<8; x++) {
+ tmp = 0.0;
+ for (v=0; v<8; v++) {
+ tmp2 = 0.0;
+ for (u=0; u<8; u++) {
+ tmp2 += (double) block[v][u] * coslu[x][u];
+ }
+ tmp += coslu[y][v] * tmp2;
+ }
+ res[y][x] = tmp;
+ }
+ }
+
+ for (v=0; v<8; v++) {
+ for (u=0; u<8; u++) {
+ tmp = res[v][u];
+ if (tmp < 0.0) {
+ x = - ((int) (0.5 - tmp));
+ } else {
+ x = (int) (tmp + 0.5);
+ }
+ block[v][u] = (DCTELEM) x;
+ }
+ }
+}
--- /dev/null
+/*
+ * jrevdct.c
+ *
+ * Copyright (C) 1991, 1992, Thomas G. Lane.
+ * This file is part of the Independent JPEG Group's software.
+ * For conditions of distribution and use, see the accompanying README file.
+ *
+ * This file contains the basic inverse-DCT transformation subroutine.
+ *
+ * This implementation is based on an algorithm described in
+ * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT
+ * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics,
+ * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991.
+ * The primary algorithm described there uses 11 multiplies and 29 adds.
+ * We use their alternate method with 12 multiplies and 32 adds.
+ * The advantage of this method is that no data path contains more than one
+ * multiplication; this allows a very simple and accurate implementation in
+ * scaled fixed-point arithmetic, with a minimal number of shifts.
+ */
+
+#include "dct.h"
+
+/* We assume that right shift corresponds to signed division by 2 with
+ * rounding towards minus infinity. This is correct for typical "arithmetic
+ * shift" instructions that shift in copies of the sign bit. But some
+ * C compilers implement >> with an unsigned shift. For these machines you
+ * must define RIGHT_SHIFT_IS_UNSIGNED.
+ * RIGHT_SHIFT provides a proper signed right shift of an INT32 quantity.
+ * It is only applied with constant shift counts. SHIFT_TEMPS must be
+ * included in the variables of any routine using RIGHT_SHIFT.
+ */
+
+#ifdef RIGHT_SHIFT_IS_UNSIGNED
+#define SHIFT_TEMPS INT32 shift_temp;
+#define RIGHT_SHIFT(x,shft) \
+ ((shift_temp = (x)) < 0 ? \
+ (shift_temp >> (shft)) | ((~((INT32) 0)) << (32-(shft))) : \
+ (shift_temp >> (shft)))
+#else
+#define SHIFT_TEMPS
+#define RIGHT_SHIFT(x,shft) ((x) >> (shft))
+#endif
+
+
+/*
+ * This routine is specialized to the case DCTSIZE = 8.
+ */
+
+#if DCTSIZE != 8
+ Sorry, this code only copes with 8x8 DCTs. /* deliberate syntax err */
+#endif
+
+
+/*
+ * A 2-D IDCT can be done by 1-D IDCT on each row followed by 1-D IDCT
+ * on each column. Direct algorithms are also available, but they are
+ * much more complex and seem not to be any faster when reduced to code.
+ *
+ * The poop on this scaling stuff is as follows:
+ *
+ * Each 1-D IDCT step produces outputs which are a factor of sqrt(N)
+ * larger than the true IDCT outputs. The final outputs are therefore
+ * a factor of N larger than desired; since N=8 this can be cured by
+ * a simple right shift at the end of the algorithm. The advantage of
+ * this arrangement is that we save two multiplications per 1-D IDCT,
+ * because the y0 and y4 inputs need not be divided by sqrt(N).
+ *
+ * We have to do addition and subtraction of the integer inputs, which
+ * is no problem, and multiplication by fractional constants, which is
+ * a problem to do in integer arithmetic. We multiply all the constants
+ * by CONST_SCALE and convert them to integer constants (thus retaining
+ * CONST_BITS bits of precision in the constants). After doing a
+ * multiplication we have to divide the product by CONST_SCALE, with proper
+ * rounding, to produce the correct output. This division can be done
+ * cheaply as a right shift of CONST_BITS bits. We postpone shifting
+ * as long as possible so that partial sums can be added together with
+ * full fractional precision.
+ *
+ * The outputs of the first pass are scaled up by PASS1_BITS bits so that
+ * they are represented to better-than-integral precision. These outputs
+ * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word
+ * with the recommended scaling. (To scale up 12-bit sample data further, an
+ * intermediate INT32 array would be needed.)
+ *
+ * To avoid overflow of the 32-bit intermediate results in pass 2, we must
+ * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis
+ * shows that the values given below are the most effective.
+ */
+
+#ifdef EIGHT_BIT_SAMPLES
+#define CONST_BITS 13
+#define PASS1_BITS 2
+#else
+#define CONST_BITS 13
+#define PASS1_BITS 1 /* lose a little precision to avoid overflow */
+#endif
+
+#define ONE ((INT32) 1)
+
+#define CONST_SCALE (ONE << CONST_BITS)
+
+/* Convert a positive real constant to an integer scaled by CONST_SCALE. */
+
+#define FIX(x) ((INT32) ((x) * CONST_SCALE + 0.5))
+
+/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus
+ * causing a lot of useless floating-point operations at run time.
+ * To get around this we use the following pre-calculated constants.
+ * If you change CONST_BITS you may want to add appropriate values.
+ * (With a reasonable C compiler, you can just rely on the FIX() macro...)
+ */
+
+#if CONST_BITS == 13
+#define FIX_0_298631336 ((INT32) 2446) /* FIX(0.298631336) */
+#define FIX_0_390180644 ((INT32) 3196) /* FIX(0.390180644) */
+#define FIX_0_541196100 ((INT32) 4433) /* FIX(0.541196100) */
+#define FIX_0_765366865 ((INT32) 6270) /* FIX(0.765366865) */
+#define FIX_0_899976223 ((INT32) 7373) /* FIX(0.899976223) */
+#define FIX_1_175875602 ((INT32) 9633) /* FIX(1.175875602) */
+#define FIX_1_501321110 ((INT32) 12299) /* FIX(1.501321110) */
+#define FIX_1_847759065 ((INT32) 15137) /* FIX(1.847759065) */
+#define FIX_1_961570560 ((INT32) 16069) /* FIX(1.961570560) */
+#define FIX_2_053119869 ((INT32) 16819) /* FIX(2.053119869) */
+#define FIX_2_562915447 ((INT32) 20995) /* FIX(2.562915447) */
+#define FIX_3_072711026 ((INT32) 25172) /* FIX(3.072711026) */
+#else
+#define FIX_0_298631336 FIX(0.298631336)
+#define FIX_0_390180644 FIX(0.390180644)
+#define FIX_0_541196100 FIX(0.541196100)
+#define FIX_0_765366865 FIX(0.765366865)
+#define FIX_0_899976223 FIX(0.899976223)
+#define FIX_1_175875602 FIX(1.175875602)
+#define FIX_1_501321110 FIX(1.501321110)
+#define FIX_1_847759065 FIX(1.847759065)
+#define FIX_1_961570560 FIX(1.961570560)
+#define FIX_2_053119869 FIX(2.053119869)
+#define FIX_2_562915447 FIX(2.562915447)
+#define FIX_3_072711026 FIX(3.072711026)
+#endif
+
+
+/* Descale and correctly round an INT32 value that's scaled by N bits.
+ * We assume RIGHT_SHIFT rounds towards minus infinity, so adding
+ * the fudge factor is correct for either sign of X.
+ */
+
+#define DESCALE(x,n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)
+
+/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result.
+ * For 8-bit samples with the recommended scaling, all the variable
+ * and constant values involved are no more than 16 bits wide, so a
+ * 16x16->32 bit multiply can be used instead of a full 32x32 multiply;
+ * this provides a useful speedup on many machines.
+ * There is no way to specify a 16x16->32 multiply in portable C, but
+ * some C compilers will do the right thing if you provide the correct
+ * combination of casts.
+ * NB: for 12-bit samples, a full 32-bit multiplication will be needed.
+ */
+
+#ifdef EIGHT_BIT_SAMPLES
+#ifdef SHORTxSHORT_32 /* may work if 'int' is 32 bits */
+#define MULTIPLY(var,const) (((INT16) (var)) * ((INT16) (const)))
+#endif
+#ifdef SHORTxLCONST_32 /* known to work with Microsoft C 6.0 */
+#define MULTIPLY(var,const) (((INT16) (var)) * ((INT32) (const)))
+#endif
+#endif
+
+#ifndef MULTIPLY /* default definition */
+#define MULTIPLY(var,const) ((var) * (const))
+#endif
+
+
+/*
+ * Perform the inverse DCT on one block of coefficients.
+ */
+
+void
+gst_idct_int_idct (DCTBLOCK data)
+{
+ INT32 tmp0, tmp1, tmp2, tmp3;
+ INT32 tmp10, tmp11, tmp12, tmp13;
+ INT32 z1, z2, z3, z4, z5;
+ register DCTELEM *dataptr;
+ int rowctr;
+ SHIFT_TEMPS
+
+ /* Pass 1: process rows. */
+ /* Note results are scaled up by sqrt(8) compared to a true IDCT; */
+ /* furthermore, we scale the results by 2**PASS1_BITS. */
+
+ dataptr = data;
+ for (rowctr = DCTSIZE-1; rowctr >= 0; rowctr--) {
+ /* Due to quantization, we will usually find that many of the input
+ * coefficients are zero, especially the AC terms. We can exploit this
+ * by short-circuiting the IDCT calculation for any row in which all
+ * the AC terms are zero. In that case each output is equal to the
+ * DC coefficient (with scale factor as needed).
+ * With typical images and quantization tables, half or more of the
+ * row DCT calculations can be simplified this way.
+ */
+
+ if ((dataptr[1] | dataptr[2] | dataptr[3] | dataptr[4] |
+ dataptr[5] | dataptr[6] | dataptr[7]) == 0) {
+ /* AC terms all zero */
+ DCTELEM dcval = (DCTELEM) (dataptr[0] << PASS1_BITS);
+
+ dataptr[0] = dcval;
+ dataptr[1] = dcval;
+ dataptr[2] = dcval;
+ dataptr[3] = dcval;
+ dataptr[4] = dcval;
+ dataptr[5] = dcval;
+ dataptr[6] = dcval;
+ dataptr[7] = dcval;
+
+ dataptr += DCTSIZE; /* advance pointer to next row */
+ continue;
+ }
+
+ /* Even part: reverse the even part of the forward DCT. */
+ /* The rotator is sqrt(2)*c(-6). */
+
+ z2 = (INT32) dataptr[2];
+ z3 = (INT32) dataptr[6];
+
+ z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+ tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
+ tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
+
+ tmp0 = ((INT32) dataptr[0] + (INT32) dataptr[4]) << CONST_BITS;
+ tmp1 = ((INT32) dataptr[0] - (INT32) dataptr[4]) << CONST_BITS;
+
+ tmp10 = tmp0 + tmp3;
+ tmp13 = tmp0 - tmp3;
+ tmp11 = tmp1 + tmp2;
+ tmp12 = tmp1 - tmp2;
+
+ /* Odd part per figure 8; the matrix is unitary and hence its
+ * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively.
+ */
+
+ tmp0 = (INT32) dataptr[7];
+ tmp1 = (INT32) dataptr[5];
+ tmp2 = (INT32) dataptr[3];
+ tmp3 = (INT32) dataptr[1];
+
+ z1 = tmp0 + tmp3;
+ z2 = tmp1 + tmp2;
+ z3 = tmp0 + tmp2;
+ z4 = tmp1 + tmp3;
+ z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */
+
+ tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+ tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+ tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+ tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+ z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+ z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+ z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+ z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+
+ z3 += z5;
+ z4 += z5;
+
+ tmp0 += z1 + z3;
+ tmp1 += z2 + z4;
+ tmp2 += z2 + z3;
+ tmp3 += z1 + z4;
+
+ /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */
+
+ dataptr[0] = (DCTELEM) DESCALE(tmp10 + tmp3, CONST_BITS-PASS1_BITS);
+ dataptr[7] = (DCTELEM) DESCALE(tmp10 - tmp3, CONST_BITS-PASS1_BITS);
+ dataptr[1] = (DCTELEM) DESCALE(tmp11 + tmp2, CONST_BITS-PASS1_BITS);
+ dataptr[6] = (DCTELEM) DESCALE(tmp11 - tmp2, CONST_BITS-PASS1_BITS);
+ dataptr[2] = (DCTELEM) DESCALE(tmp12 + tmp1, CONST_BITS-PASS1_BITS);
+ dataptr[5] = (DCTELEM) DESCALE(tmp12 - tmp1, CONST_BITS-PASS1_BITS);
+ dataptr[3] = (DCTELEM) DESCALE(tmp13 + tmp0, CONST_BITS-PASS1_BITS);
+ dataptr[4] = (DCTELEM) DESCALE(tmp13 - tmp0, CONST_BITS-PASS1_BITS);
+
+ dataptr += DCTSIZE; /* advance pointer to next row */
+ }
+
+ /* Pass 2: process columns. */
+ /* Note that we must descale the results by a factor of 8 == 2**3, */
+ /* and also undo the PASS1_BITS scaling. */
+
+ dataptr = data;
+ for (rowctr = DCTSIZE-1; rowctr >= 0; rowctr--) {
+ /* Columns of zeroes can be exploited in the same way as we did with rows.
+ * However, the row calculation has created many nonzero AC terms, so the
+ * simplification applies less often (typically 5% to 10% of the time).
+ * On machines with very fast multiplication, it's possible that the
+ * test takes more time than it's worth. In that case this section
+ * may be commented out.
+ */
+
+#ifndef NO_ZERO_COLUMN_TEST
+ if ((dataptr[DCTSIZE*1] | dataptr[DCTSIZE*2] | dataptr[DCTSIZE*3] |
+ dataptr[DCTSIZE*4] | dataptr[DCTSIZE*5] | dataptr[DCTSIZE*6] |
+ dataptr[DCTSIZE*7]) == 0) {
+ /* AC terms all zero */
+ DCTELEM dcval = (DCTELEM) DESCALE((INT32) dataptr[0], PASS1_BITS+3);
+
+ dataptr[DCTSIZE*0] = dcval;
+ dataptr[DCTSIZE*1] = dcval;
+ dataptr[DCTSIZE*2] = dcval;
+ dataptr[DCTSIZE*3] = dcval;
+ dataptr[DCTSIZE*4] = dcval;
+ dataptr[DCTSIZE*5] = dcval;
+ dataptr[DCTSIZE*6] = dcval;
+ dataptr[DCTSIZE*7] = dcval;
+
+ dataptr++; /* advance pointer to next column */
+ continue;
+ }
+#endif
+
+ /* Even part: reverse the even part of the forward DCT. */
+ /* The rotator is sqrt(2)*c(-6). */
+
+ z2 = (INT32) dataptr[DCTSIZE*2];
+ z3 = (INT32) dataptr[DCTSIZE*6];
+
+ z1 = MULTIPLY(z2 + z3, FIX_0_541196100);
+ tmp2 = z1 + MULTIPLY(z3, - FIX_1_847759065);
+ tmp3 = z1 + MULTIPLY(z2, FIX_0_765366865);
+
+ tmp0 = ((INT32) dataptr[DCTSIZE*0] + (INT32) dataptr[DCTSIZE*4]) << CONST_BITS;
+ tmp1 = ((INT32) dataptr[DCTSIZE*0] - (INT32) dataptr[DCTSIZE*4]) << CONST_BITS;
+
+ tmp10 = tmp0 + tmp3;
+ tmp13 = tmp0 - tmp3;
+ tmp11 = tmp1 + tmp2;
+ tmp12 = tmp1 - tmp2;
+
+ /* Odd part per figure 8; the matrix is unitary and hence its
+ * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively.
+ */
+
+ tmp0 = (INT32) dataptr[DCTSIZE*7];
+ tmp1 = (INT32) dataptr[DCTSIZE*5];
+ tmp2 = (INT32) dataptr[DCTSIZE*3];
+ tmp3 = (INT32) dataptr[DCTSIZE*1];
+
+ z1 = tmp0 + tmp3;
+ z2 = tmp1 + tmp2;
+ z3 = tmp0 + tmp2;
+ z4 = tmp1 + tmp3;
+ z5 = MULTIPLY(z3 + z4, FIX_1_175875602); /* sqrt(2) * c3 */
+
+ tmp0 = MULTIPLY(tmp0, FIX_0_298631336); /* sqrt(2) * (-c1+c3+c5-c7) */
+ tmp1 = MULTIPLY(tmp1, FIX_2_053119869); /* sqrt(2) * ( c1+c3-c5+c7) */
+ tmp2 = MULTIPLY(tmp2, FIX_3_072711026); /* sqrt(2) * ( c1+c3+c5-c7) */
+ tmp3 = MULTIPLY(tmp3, FIX_1_501321110); /* sqrt(2) * ( c1+c3-c5-c7) */
+ z1 = MULTIPLY(z1, - FIX_0_899976223); /* sqrt(2) * (c7-c3) */
+ z2 = MULTIPLY(z2, - FIX_2_562915447); /* sqrt(2) * (-c1-c3) */
+ z3 = MULTIPLY(z3, - FIX_1_961570560); /* sqrt(2) * (-c3-c5) */
+ z4 = MULTIPLY(z4, - FIX_0_390180644); /* sqrt(2) * (c5-c3) */
+
+ z3 += z5;
+ z4 += z5;
+
+ tmp0 += z1 + z3;
+ tmp1 += z2 + z4;
+ tmp2 += z2 + z3;
+ tmp3 += z1 + z4;
+
+ /* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */
+
+ dataptr[DCTSIZE*0] = (DCTELEM) DESCALE(tmp10 + tmp3,
+ CONST_BITS+PASS1_BITS+3);
+ dataptr[DCTSIZE*7] = (DCTELEM) DESCALE(tmp10 - tmp3,
+ CONST_BITS+PASS1_BITS+3);
+ dataptr[DCTSIZE*1] = (DCTELEM) DESCALE(tmp11 + tmp2,
+ CONST_BITS+PASS1_BITS+3);
+ dataptr[DCTSIZE*6] = (DCTELEM) DESCALE(tmp11 - tmp2,
+ CONST_BITS+PASS1_BITS+3);
+ dataptr[DCTSIZE*2] = (DCTELEM) DESCALE(tmp12 + tmp1,
+ CONST_BITS+PASS1_BITS+3);
+ dataptr[DCTSIZE*5] = (DCTELEM) DESCALE(tmp12 - tmp1,
+ CONST_BITS+PASS1_BITS+3);
+ dataptr[DCTSIZE*3] = (DCTELEM) DESCALE(tmp13 + tmp0,
+ CONST_BITS+PASS1_BITS+3);
+ dataptr[DCTSIZE*4] = (DCTELEM) DESCALE(tmp13 - tmp0,
+ CONST_BITS+PASS1_BITS+3);
+
+ dataptr++; /* advance pointer to next column */
+ }
+}
--- /dev/null
+/* \r
+ * idctmmx32.cpp \r
+ *\r
+ * Copyright (C) Alberto Vigata - January 2000 - ultraflask@yahoo.com\r
+ *\r
+ * This file is part of FlasKMPEG, a free MPEG to MPEG/AVI converter\r
+ * \r
+ * FlasKMPEG is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2, or (at your option)\r
+ * any later version.\r
+ * \r
+ * FlasKMPEG is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ * \r
+ * You should have received a copy of the GNU General Public License\r
+ * along with GNU Make; see the file COPYING. If not, write to\r
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. \r
+ *\r
+ */\r
+\r
+\r
+// MMX32 iDCT algorithm (IEEE-1180 compliant) :: idct_mmx32()\r
+//\r
+// MPEG2AVI\r
+// --------\r
+// v0.16B33 initial release\r
+//\r
+// This was one of the harder pieces of work to code.\r
+// Intel's app-note focuses on the numerical issues of the algorithm, but\r
+// assumes the programmer is familiar with IDCT mathematics, leaving the\r
+// form of the complete function up to the programmer's imagination.\r
+//\r
+// ALGORITHM OVERVIEW\r
+// ------------------\r
+// I played around with the code for quite a few hours. I came up\r
+// with *A* working IDCT algorithm, however I'm not sure whether my routine\r
+// is "the correct one." But rest assured, my code passes all six IEEE \r
+// accuracy tests with plenty of margin.\r
+//\r
+// My IDCT algorithm consists of 4 steps:\r
+//\r
+// 1) IDCT-row transformation (using the IDCT-row function) on all 8 rows\r
+// This yields an intermediate 8x8 matrix.\r
+//\r
+// 2) intermediate matrix transpose (mandatory)\r
+//\r
+// 3) IDCT-row transformation (2nd time) on all 8 rows of the intermediate\r
+// matrix. The output is the final-result, in transposed form.\r
+//\r
+// 4) post-transformation matrix transpose \r
+// (not necessary if the input-data is already transposed, this could\r
+// be done during the MPEG "zig-zag" scan, but since my algorithm\r
+// requires at least one transpose operation, why not re-use the\r
+// transpose-code.)\r
+//\r
+// Although the (1st) and (3rd) steps use the SAME row-transform operation,\r
+// the (3rd) step uses different shift&round constants (explained later.)\r
+//\r
+// Also note that the intermediate transpose (2) would not be neccessary,\r
+// if the subsequent operation were a iDCT-column transformation. Since\r
+// we only have the iDCT-row transform, we transpose the intermediate\r
+// matrix and use the iDCT-row transform a 2nd time.\r
+//\r
+// I had to change some constants/variables for my method to work :\r
+//\r
+// As given by Intel, the #defines for SHIFT_INV_COL and RND_INV_COL are\r
+// wrong. Not surprising since I'm not using a true column-transform \r
+// operation, but the row-transform operation (as mentioned earlier.)\r
+// round_inv_col[], which is given as "4 short" values, should have the\r
+// same dimensions as round_inv_row[]. The corrected variables are \r
+// shown.\r
+//\r
+// Intel's code defines a different table for each each row operation.\r
+// The tables given are 0/4, 1/7, 2/6, and 5/3. My code only uses row#0.\r
+// Using the other rows messes up the overall transform.\r
+//\r
+// IMPLEMENTATION DETAILs\r
+// ----------------------\r
+// \r
+// I divided the algorithm's work into two subroutines,\r
+// 1) idct_mmx32_rows() - transforms 8 rows, then transpose\r
+// 2) idct_mmx32_cols() - transforms 8 rows, then transpose\r
+// yields final result ("drop-in" direct replacement for INT32 IDCT)\r
+//\r
+// The 2nd function is a clone of the 1st, with changes made only to the\r
+// shift&rounding instructions.\r
+//\r
+// In the 1st function (rows), the shift & round instructions use \r
+// SHIFT_INV_ROW & round_inv_row[] (renamed to r_inv_row[])\r
+//\r
+// In the 2nd function (cols)-> r_inv_col[], and\r
+// SHIFT_INV_COL & round_inv_col[] (renamed to r_inv_col[])\r
+//\r
+// Each function contains an integrated transpose-operator, which comes\r
+// AFTER the primary transformation operation. In the future, I'll optimize\r
+// the code to do more of the transpose-work "in-place". Right now, I've\r
+// left the code as two subroutines and a main calling function, so other\r
+// people can read the code more easily.\r
+//\r
+// liaor@umcc.ais.org http://members.tripod.com/~liaor\r
+// \r
+\r
+\r
+//;=============================================================================\r
+//;\r
+//; AP-922 http://developer.intel.com/vtune/cbts/strmsimd\r
+//; These examples contain code fragments for first stage iDCT 8x8\r
+//; (for rows) and first stage DCT 8x8 (for columns)\r
+//;\r
+//;=============================================================================\r
+/*\r
+mword typedef qword\r
+qword ptr equ mword ptr */\r
+\r
+#include <mmx.h>\r
+\r
+#define BITS_INV_ACC 4 //; 4 or 5 for IEEE\r
+ // 5 yields higher accuracy, but lessens dynamic range on the input matrix\r
+#define SHIFT_INV_ROW (16 - BITS_INV_ACC)\r
+#define SHIFT_INV_COL (1 + BITS_INV_ACC +14 ) // changed from Intel's val)\r
+//#define SHIFT_INV_COL (1 + BITS_INV_ACC )\r
+\r
+#define RND_INV_ROW (1 << (SHIFT_INV_ROW-1))\r
+#define RND_INV_COL (1 << (SHIFT_INV_COL-1)) \r
+#define RND_INV_CORR (RND_INV_COL - 1) //; correction -1.0 and round\r
+//#define RND_INV_ROW (1024 * (6 - BITS_INV_ACC)) //; 1 << (SHIFT_INV_ROW-1)\r
+//#define RND_INV_COL (16 * (BITS_INV_ACC - 3)) //; 1 << (SHIFT_INV_COL-1)\r
+\r
+\r
+//.data\r
+//Align 16\r
+const static long r_inv_row[2] = { RND_INV_ROW, RND_INV_ROW};\r
+const static long r_inv_col[2] = {RND_INV_COL, RND_INV_COL};\r
+const static long r_inv_corr[2] = {RND_INV_CORR, RND_INV_CORR };\r
+\r
+//const static short r_inv_col[4] = \r
+// {RND_INV_COL, RND_INV_COL, RND_INV_COL, RND_INV_COL};\r
+//const static short r_inv_corr[4] =\r
+// {RND_INV_CORR, RND_INV_CORR, RND_INV_CORR, RND_INV_CORR};\r
+\r
+/* constants for the forward DCT\r
+\r
+//#define BITS_FRW_ACC 3 //; 2 or 3 for accuracy\r
+//#define SHIFT_FRW_COL BITS_FRW_ACC\r
+//#define SHIFT_FRW_ROW (BITS_FRW_ACC + 17)\r
+//#define RND_FRW_ROW (262144 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_ROW-1)\r
+\r
+const static __int64 one_corr = 0x0001000100010001;\r
+const static long r_frw_row[2] = {RND_FRW_ROW, RND_FRW_ROW };\r
+\r
+//const static short tg_1_16[4] = {13036, 13036, 13036, 13036 }; //tg * (2<<16) + 0.5\r
+//const static short tg_2_16[4] = {27146, 27146, 27146, 27146 }; //tg * (2<<16) + 0.5\r
+//const static short tg_3_16[4] = {-21746, -21746, -21746, -21746 }; //tg * (2<<16) + 0.5\r
+//const static short cos_4_16[4] = {-19195, -19195, -19195, -19195 }; //cos * (2<<16) + 0.5\r
+//const static short ocos_4_16[4] = {23170, 23170, 23170, 23170 }; //cos * (2<<15) + 0.5\r
+\r
+//concatenated table, for forward DCT transformation\r
+const static short tg_all_16[] = {\r
+ 13036, 13036, 13036, 13036, // tg * (2<<16) + 0.5\r
+ 27146, 27146, 27146, 27146, //tg * (2<<16) + 0.5\r
+ -21746, -21746, -21746, -21746, // tg * (2<<16) + 0.5\r
+ -19195, -19195, -19195, -19195, //cos * (2<<16) + 0.5\r
+ 23170, 23170, 23170, 23170 }; //cos * (2<<15) + 0.5\r
+\r
+#define tg_1_16 (tg_all_16 + 0)\r
+#define tg_2_16 (tg_all_16 + 8)\r
+#define tg_3_16 (tg_all_16 + 16)\r
+#define cos_4_16 (tg_all_16 + 24)\r
+#define ocos_4_16 (tg_all_16 + 32)\r
+*/\r
+/*\r
+;=============================================================================\r
+;\r
+; The first stage iDCT 8x8 - inverse DCTs of rows\r
+;\r
+;-----------------------------------------------------------------------------\r
+; The 8-point inverse DCT direct algorithm\r
+;-----------------------------------------------------------------------------\r
+;\r
+; static const short w[32] = {\r
+; FIX(cos_4_16), FIX(cos_2_16), FIX(cos_4_16), FIX(cos_6_16),\r
+; FIX(cos_4_16), FIX(cos_6_16), -FIX(cos_4_16), -FIX(cos_2_16),\r
+; FIX(cos_4_16), -FIX(cos_6_16), -FIX(cos_4_16), FIX(cos_2_16),\r
+; FIX(cos_4_16), -FIX(cos_2_16), FIX(cos_4_16), -FIX(cos_6_16),\r
+; FIX(cos_1_16), FIX(cos_3_16), FIX(cos_5_16), FIX(cos_7_16),\r
+; FIX(cos_3_16), -FIX(cos_7_16), -FIX(cos_1_16), -FIX(cos_5_16),\r
+; FIX(cos_5_16), -FIX(cos_1_16), FIX(cos_7_16), FIX(cos_3_16),\r
+; FIX(cos_7_16), -FIX(cos_5_16), FIX(cos_3_16), -FIX(cos_1_16) };\r
+;\r
+; #define DCT_8_INV_ROW(x, y)\r
+\r
+;{\r
+; int a0, a1, a2, a3, b0, b1, b2, b3;\r
+;\r
+; a0 =x[0]*w[0]+x[2]*w[1]+x[4]*w[2]+x[6]*w[3];\r
+; a1 =x[0]*w[4]+x[2]*w[5]+x[4]*w[6]+x[6]*w[7];\r
+; a2 = x[0] * w[ 8] + x[2] * w[ 9] + x[4] * w[10] + x[6] * w[11];\r
+; a3 = x[0] * w[12] + x[2] * w[13] + x[4] * w[14] + x[6] * w[15];\r
+; b0 = x[1] * w[16] + x[3] * w[17] + x[5] * w[18] + x[7] * w[19];\r
+; b1 = x[1] * w[20] + x[3] * w[21] + x[5] * w[22] + x[7] * w[23];\r
+; b2 = x[1] * w[24] + x[3] * w[25] + x[5] * w[26] + x[7] * w[27];\r
+; b3 = x[1] * w[28] + x[3] * w[29] + x[5] * w[30] + x[7] * w[31];\r
+;\r
+; y[0] = SHIFT_ROUND ( a0 + b0 );\r
+; y[1] = SHIFT_ROUND ( a1 + b1 );\r
+; y[2] = SHIFT_ROUND ( a2 + b2 );\r
+; y[3] = SHIFT_ROUND ( a3 + b3 );\r
+; y[4] = SHIFT_ROUND ( a3 - b3 );\r
+; y[5] = SHIFT_ROUND ( a2 - b2 );\r
+; y[6] = SHIFT_ROUND ( a1 - b1 );\r
+; y[7] = SHIFT_ROUND ( a0 - b0 );\r
+;}\r
+;\r
+;-----------------------------------------------------------------------------\r
+;\r
+; In this implementation the outputs of the iDCT-1D are multiplied\r
+; for rows 0,4 - by cos_4_16,\r
+; for rows 1,7 - by cos_1_16,\r
+; for rows 2,6 - by cos_2_16,\r
+; for rows 3,5 - by cos_3_16\r
+; and are shifted to the left for better accuracy\r
+;\r
+; For the constants used,\r
+; FIX(float_const) = (short) (float_const * (1<<15) + 0.5)\r
+;\r
+;=============================================================================\r
+;=============================================================================\r
+IF _MMX ; MMX code\r
+;=============================================================================\r
+\r
+//; Table for rows 0,4 - constants are multiplied by cos_4_16\r
+const short tab_i_04[] = {\r
+ 16384, 16384, 16384, -16384, // ; movq-> w06 w04 w02 w00\r
+ 21407, 8867, 8867, -21407, // w07 w05 w03 w01\r
+ 16384, -16384, 16384, 16384, //; w14 w12 w10 w08\r
+ -8867, 21407, -21407, -8867, //; w15 w13 w11 w09\r
+ 22725, 12873, 19266, -22725, //; w22 w20 w18 w16\r
+ 19266, 4520, -4520, -12873, //; w23 w21 w19 w17\r
+ 12873, 4520, 4520, 19266, //; w30 w28 w26 w24\r
+ -22725, 19266, -12873, -22725 };//w31 w29 w27 w25\r
+\r
+//; Table for rows 1,7 - constants are multiplied by cos_1_16\r
+const short tab_i_17[] = {\r
+ 22725, 22725, 22725, -22725, // ; movq-> w06 w04 w02 w00\r
+ 29692, 12299, 12299, -29692, // ; w07 w05 w03 w01\r
+ 22725, -22725, 22725, 22725, //; w14 w12 w10 w08\r
+ -12299, 29692, -29692, -12299, //; w15 w13 w11 w09\r
+ 31521, 17855, 26722, -31521, //; w22 w20 w18 w16\r
+ 26722, 6270, -6270, -17855, //; w23 w21 w19 w17\r
+ 17855, 6270, 6270, 26722, //; w30 w28 w26 w24\r
+ -31521, 26722, -17855, -31521}; // w31 w29 w27 w25\r
+\r
+//; Table for rows 2,6 - constants are multiplied by cos_2_16\r
+const short tab_i_26[] = {\r
+ 21407, 21407, 21407, -21407, // ; movq-> w06 w04 w02 w00\r
+ 27969, 11585, 11585, -27969, // ; w07 w05 w03 w01\r
+ 21407, -21407, 21407, 21407, // ; w14 w12 w10 w08\r
+ -11585, 27969, -27969, -11585, // ;w15 w13 w11 w09\r
+ 29692, 16819, 25172, -29692, // ;w22 w20 w18 w16\r
+ 25172, 5906, -5906, -16819, // ;w23 w21 w19 w17\r
+ 16819, 5906, 5906, 25172, // ;w30 w28 w26 w24\r
+ -29692, 25172, -16819, -29692}; // ;w31 w29 w27 w25\r
+\r
+\r
+//; Table for rows 3,5 - constants are multiplied by cos_3_16\r
+const short tab_i_35[] = {\r
+ 19266, 19266, 19266, -19266, //; movq-> w06 w04 w02 w00\r
+ 25172, 10426, 10426, -25172, //; w07 w05 w03 w01\r
+ 19266, -19266, 19266, 19266, //; w14 w12 w10 w08\r
+ -10426, 25172, -25172, -10426, //; w15 w13 w11 w09\r
+ 26722, 15137, 22654, -26722, //; w22 w20 w18 w16\r
+ 22654, 5315, -5315, -15137, //; w23 w21 w19 w17\r
+ 15137, 5315, 5315, 22654, //; w30 w28 w26 w24\r
+ -26722, 22654, -15137, -26722}; //; w31 w29 w27 w25\r
+*/\r
+\r
+// CONCATENATED TABLE, rows 0,1,2,3,4,5,6,7 (in order )\r
+//\r
+// In our implementation, however, we only use row0 !\r
+//\r
+static const short tab_i_01234567[] = {\r
+ //row0, this row is required\r
+ 16384, 16384, 16384, -16384, // ; movq-> w06 w04 w02 w00\r
+ 21407, 8867, 8867, -21407, // w07 w05 w03 w01\r
+ 16384, -16384, 16384, 16384, //; w14 w12 w10 w08\r
+ -8867, 21407, -21407, -8867, //; w15 w13 w11 w09\r
+ 22725, 12873, 19266, -22725, //; w22 w20 w18 w16\r
+ 19266, 4520, -4520, -12873, //; w23 w21 w19 w17\r
+ 12873, 4520, 4520, 19266, //; w30 w28 w26 w24\r
+ -22725, 19266, -12873, -22725, //w31 w29 w27 w25\r
+\r
+ // the rest of these rows (1-7), aren't used !\r
+\r
+ //row1\r
+ 22725, 22725, 22725, -22725, // ; movq-> w06 w04 w02 w00\r
+ 29692, 12299, 12299, -29692, // ; w07 w05 w03 w01\r
+ 22725, -22725, 22725, 22725, //; w14 w12 w10 w08\r
+ -12299, 29692, -29692, -12299, //; w15 w13 w11 w09\r
+ 31521, 17855, 26722, -31521, //; w22 w20 w18 w16\r
+ 26722, 6270, -6270, -17855, //; w23 w21 w19 w17\r
+ 17855, 6270, 6270, 26722, //; w30 w28 w26 w24\r
+ -31521, 26722, -17855, -31521, // w31 w29 w27 w25\r
+\r
+ //row2\r
+ 21407, 21407, 21407, -21407, // ; movq-> w06 w04 w02 w00\r
+ 27969, 11585, 11585, -27969, // ; w07 w05 w03 w01\r
+ 21407, -21407, 21407, 21407, // ; w14 w12 w10 w08\r
+ -11585, 27969, -27969, -11585, // ;w15 w13 w11 w09\r
+ 29692, 16819, 25172, -29692, // ;w22 w20 w18 w16\r
+ 25172, 5906, -5906, -16819, // ;w23 w21 w19 w17\r
+ 16819, 5906, 5906, 25172, // ;w30 w28 w26 w24\r
+ -29692, 25172, -16819, -29692, // ;w31 w29 w27 w25\r
+\r
+ //row3\r
+ 19266, 19266, 19266, -19266, //; movq-> w06 w04 w02 w00\r
+ 25172, 10426, 10426, -25172, //; w07 w05 w03 w01\r
+ 19266, -19266, 19266, 19266, //; w14 w12 w10 w08\r
+ -10426, 25172, -25172, -10426, //; w15 w13 w11 w09\r
+ 26722, 15137, 22654, -26722, //; w22 w20 w18 w16\r
+ 22654, 5315, -5315, -15137, //; w23 w21 w19 w17\r
+ 15137, 5315, 5315, 22654, //; w30 w28 w26 w24\r
+ -26722, 22654, -15137, -26722, //; w31 w29 w27 w25\r
+\r
+ //row4\r
+ 16384, 16384, 16384, -16384, // ; movq-> w06 w04 w02 w00\r
+ 21407, 8867, 8867, -21407, // w07 w05 w03 w01\r
+ 16384, -16384, 16384, 16384, //; w14 w12 w10 w08\r
+ -8867, 21407, -21407, -8867, //; w15 w13 w11 w09\r
+ 22725, 12873, 19266, -22725, //; w22 w20 w18 w16\r
+ 19266, 4520, -4520, -12873, //; w23 w21 w19 w17\r
+ 12873, 4520, 4520, 19266, //; w30 w28 w26 w24\r
+ -22725, 19266, -12873, -22725, //w31 w29 w27 w25\r
+\r
+ //row5\r
+ 19266, 19266, 19266, -19266, //; movq-> w06 w04 w02 w00\r
+ 25172, 10426, 10426, -25172, //; w07 w05 w03 w01\r
+ 19266, -19266, 19266, 19266, //; w14 w12 w10 w08\r
+ -10426, 25172, -25172, -10426, //; w15 w13 w11 w09\r
+ 26722, 15137, 22654, -26722, //; w22 w20 w18 w16\r
+ 22654, 5315, -5315, -15137, //; w23 w21 w19 w17\r
+ 15137, 5315, 5315, 22654, //; w30 w28 w26 w24\r
+ -26722, 22654, -15137, -26722, //; w31 w29 w27 w25\r
+\r
+ //row6\r
+ 21407, 21407, 21407, -21407, // ; movq-> w06 w04 w02 w00\r
+ 27969, 11585, 11585, -27969, // ; w07 w05 w03 w01\r
+ 21407, -21407, 21407, 21407, // ; w14 w12 w10 w08\r
+ -11585, 27969, -27969, -11585, // ;w15 w13 w11 w09\r
+ 29692, 16819, 25172, -29692, // ;w22 w20 w18 w16\r
+ 25172, 5906, -5906, -16819, // ;w23 w21 w19 w17\r
+ 16819, 5906, 5906, 25172, // ;w30 w28 w26 w24\r
+ -29692, 25172, -16819, -29692, // ;w31 w29 w27 w25\r
+\r
+ //row7\r
+ 22725, 22725, 22725, -22725, // ; movq-> w06 w04 w02 w00\r
+ 29692, 12299, 12299, -29692, // ; w07 w05 w03 w01\r
+ 22725, -22725, 22725, 22725, //; w14 w12 w10 w08\r
+ -12299, 29692, -29692, -12299, //; w15 w13 w11 w09\r
+ 31521, 17855, 26722, -31521, //; w22 w20 w18 w16\r
+ 26722, 6270, -6270, -17855, //; w23 w21 w19 w17\r
+ 17855, 6270, 6270, 26722, //; w30 w28 w26 w24\r
+ -31521, 26722, -17855, -31521}; // w31 w29 w27 w25\r
+\r
+\r
+#define INP eax // pointer to (short *blk)\r
+#define OUT ecx // pointer to output (temporary store space qwTemp[])\r
+#define TABLE ebx // pointer to tab_i_01234567[]\r
+#define round_inv_row edx\r
+#define round_inv_col edx\r
+\r
+#define ROW_STRIDE 8 // for 8x8 matrix transposer\r
+\r
+// private variables and functions\r
+\r
+//temporary storage space, 8x8 of shorts\r
+\r
+__inline static void idct_mmx32_rows( short *blk ); // transform rows\r
+__inline static void idct_mmx32_cols( short *blk ); // transform "columns"\r
+ // the "column" transform actually transforms rows, it is\r
+ // identical to the row-transform except for the ROUNDING\r
+ // and SHIFTING coefficients.\r
+\r
+ \r
+static void \r
+idct_mmx32_rows( short *blk ) // transform all 8 rows of 8x8 iDCT block\r
+{\r
+ int x;\r
+ short qwTemp[64];\r
+ short *out = &qwTemp[0];\r
+ short *inptr = blk;\r
+ // this subroutine performs two operations\r
+ // 1) iDCT row transform\r
+ // for( i = 0; i < 8; ++ i)\r
+ // DCT_8_INV_ROW_1( blk[i*8], qwTemp[i] );\r
+ //\r
+ // 2) transpose the matrix (which was stored in qwTemp[])\r
+ // qwTemp[] -> [8x8 matrix transpose] -> blk[]\r
+\r
+ for (x=0; x<8; x++) { // transform one row per iteration\r
+ movq_m2r(*(inptr), mm0); // 0 ; x3 x2 x1 x0\r
+\r
+ movq_m2r(*(inptr+4), mm1); // 1 ; x7 x6 x5 x4\r
+ movq_r2r(mm0, mm2); // 2 ; x3 x2 x1 x0\r
+\r
+ movq_m2r(*(tab_i_01234567), mm3); // 3 ; w06 w04 w02 w00\r
+ punpcklwd_r2r(mm1, mm0); // x5 x1 x4 x0\r
+\r
+ // ----------\r
+ movq_r2r(mm0, mm5); // 5 ; x5 x1 x4 x0\r
+ punpckldq_r2r(mm0, mm0); // x4 x0 x4 x0\r
+\r
+ movq_m2r(*(tab_i_01234567+4), mm4); // 4 ; w07 w05 w03 w01\r
+ punpckhwd_r2r(mm1, mm2); // 1 ; x7 x3 x6 x2\r
+\r
+ pmaddwd_r2r(mm0, mm3); // x4*w06+x0*w04 x4*w02+x0*w00\r
+ movq_r2r(mm2, mm6); // 6 ; x7 x3 x6 x2\r
+\r
+ movq_m2r(*(tab_i_01234567+16), mm1);// 1 ; w22 w20 w18 w16\r
+ punpckldq_r2r(mm2, mm2); // x6 x2 x6 x2\r
+\r
+ pmaddwd_r2r(mm2, mm4); // x6*w07+x2*w05 x6*w03+x2*w01\r
+ punpckhdq_r2r(mm5, mm5); // x5 x1 x5 x1\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+8), mm0);// x4*w14+x0*w12 x4*w10+x0*w08\r
+ punpckhdq_r2r(mm6, mm6); // x7 x3 x7 x3\r
+\r
+ movq_m2r(*(tab_i_01234567+20), mm7);// 7 ; w23 w21 w19 w17\r
+ pmaddwd_r2r(mm5, mm1); // x5*w22+x1*w20 x5*w18+x1*w16\r
+\r
+ paddd_m2r(*(r_inv_row), mm3);// +rounder\r
+ pmaddwd_r2r(mm6, mm7); // x7*w23+x3*w21 x7*w19+x3*w17\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+12), mm2);// x6*w15+x2*w13 x6*w11+x2*w09\r
+ paddd_r2r(mm4, mm3); // 4 ; a1=sum(even1) a0=sum(even0)\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+24), mm5);// x5*w30+x1*w28 x5*w26+x1*w24\r
+ movq_r2r(mm3, mm4); // 4 ; a1 a0\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+28), mm6);// x7*w31+x3*w29 x7*w27+x3*w25\r
+ paddd_r2r(mm7, mm1); // 7 ; b1=sum(odd1) b0=sum(odd0)\r
+\r
+ paddd_m2r(*(r_inv_row), mm0);// +rounder\r
+ psubd_r2r(mm1, mm3); // a1-b1 a0-b0\r
+\r
+ psrad_i2r(SHIFT_INV_ROW, mm3); // y6=a1-b1 y7=a0-b0\r
+ paddd_r2r(mm4, mm1); // 4 ; a1+b1 a0+b0\r
+\r
+ paddd_r2r(mm2, mm0); // 2 ; a3=sum(even3) a2=sum(even2)\r
+ psrad_i2r(SHIFT_INV_ROW, mm1); // y1=a1+b1 y0=a0+b0\r
+\r
+ paddd_r2r(mm6, mm5); // 6 ; b3=sum(odd3) b2=sum(odd2)\r
+ movq_r2r(mm0, mm4); // 4 ; a3 a2\r
+\r
+ paddd_r2r(mm5, mm0); // a3+b3 a2+b2\r
+ psubd_r2r(mm5, mm4); // 5 ; a3-b3 a2-b2\r
+\r
+ psrad_i2r(SHIFT_INV_ROW, mm4); // y4=a3-b3 y5=a2-b2\r
+ psrad_i2r(SHIFT_INV_ROW, mm0); // y3=a3+b3 y2=a2+b2\r
+\r
+ packssdw_r2r(mm3, mm4); // 3 ; y6 y7 y4 y5\r
+\r
+ packssdw_r2r(mm0, mm1); // 0 ; y3 y2 y1 y0\r
+ movq_r2r(mm4, mm7); // 7 ; y6 y7 y4 y5\r
+\r
+ psrld_i2r(16, mm4); // 0 y6 0 y4\r
+\r
+ movq_r2m(mm1, *(out)); // 1 ; save y3 y2 y1 y0\r
+ pslld_i2r(16, mm7); // y7 0 y5 0\r
+\r
+ por_r2r(mm4, mm7); // 4 ; y7 y6 y5 y4\r
+\r
+ // begin processing row 1\r
+ movq_r2m(mm7, *(out+4)); // 7 ; save y7 y6 y5 y4\r
+\r
+ inptr += 8;\r
+ out += 8;\r
+ }\r
+ \r
+\r
+ // done with the iDCT row-transformation\r
+\r
+ // now we have to transpose the output 8x8 matrix\r
+ // 8x8 (OUT) -> 8x8't' (IN)\r
+ // the transposition is implemented as 4 sub-operations.\r
+ // 1) transpose upper-left quad\r
+ // 2) transpose lower-right quad\r
+ // 3) transpose lower-left quad\r
+ // 4) transpose upper-right quad\r
+\r
+ \r
+ // mm0 = 1st row [ A B C D ] row1\r
+ // mm1 = 2nd row [ E F G H ] 2\r
+ // mm2 = 3rd row [ I J K L ] 3\r
+ // mm3 = 4th row [ M N O P ] 4\r
+\r
+ // 1) transpose upper-left quad\r
+ out = &qwTemp[0];\r
+\r
+ movq_m2r(*(out + ROW_STRIDE * 0), mm0);\r
+\r
+ movq_m2r(*(out + ROW_STRIDE * 1), mm1);\r
+ movq_r2r(mm0, mm4); // mm4 = copy of row1[A B C D]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE * 2), mm2);\r
+ punpcklwd_r2r(mm1, mm0); // mm0 = [ 0 4 1 5]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE * 3), mm3);\r
+ punpckhwd_r2r(mm1, mm4); // mm4 = [ 2 6 3 7]\r
+\r
+ movq_r2r(mm2, mm6);\r
+ punpcklwd_r2r(mm3, mm2); // mm2 = [ 8 12 9 13]\r
+\r
+ punpckhwd_r2r(mm3, mm6); // mm6 = 10 14 11 15]\r
+ movq_r2r(mm0, mm1); // mm1 = [ 0 4 1 5]\r
+\r
+ inptr = blk;\r
+\r
+ punpckldq_r2r(mm2, mm0); // final result mm0 = row1 [0 4 8 12]\r
+\r
+ movq_r2r(mm4, mm3); // mm3 = [ 2 6 3 7]\r
+ punpckhdq_r2r(mm2, mm1); // mm1 = final result mm1 = row2 [1 5 9 13]\r
+\r
+ movq_r2m(mm0, *(inptr + ROW_STRIDE * 0)); // store row 1\r
+ punpckldq_r2r(mm6, mm4); // final result mm4 = row3 [2 6 10 14]\r
+\r
+// begin reading next quadrant (lower-right)\r
+ movq_m2r(*(out + ROW_STRIDE*4 + 4), mm0); \r
+ punpckhdq_r2r(mm6, mm3); // final result mm3 = row4 [3 7 11 15]\r
+\r
+ movq_r2m(mm4, *(inptr + ROW_STRIDE * 2)); // store row 3\r
+ movq_r2r(mm0, mm4); // mm4 = copy of row1[A B C D]\r
+\r
+ movq_r2m(mm1, *(inptr + ROW_STRIDE * 1)); // store row 2\r
+\r
+ movq_m2r(*(out + ROW_STRIDE*5 + 4), mm1);\r
+\r
+ movq_r2m(mm3, *(inptr + ROW_STRIDE * 3)); // store row 4\r
+ punpcklwd_r2r(mm1, mm0); // mm0 = [ 0 4 1 5]\r
+\r
+ // 2) transpose lower-right quadrant\r
+\r
+// movq mm0, qword ptr [OUT + ROW_STRIDE*4 + 8]\r
+\r
+// movq mm1, qword ptr [OUT + ROW_STRIDE*5 + 8]\r
+// movq mm4, mm0; // mm4 = copy of row1[A B C D]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE*6 + 4), mm2);\r
+// punpcklwd mm0, mm1; // mm0 = [ 0 4 1 5]\r
+ punpckhwd_r2r(mm1, mm4); // mm4 = [ 2 6 3 7]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE*7 + 4), mm3);\r
+ movq_r2r(mm2, mm6);\r
+\r
+ punpcklwd_r2r(mm3, mm2); // mm2 = [ 8 12 9 13]\r
+ movq_r2r(mm0, mm1); // mm1 = [ 0 4 1 5]\r
+\r
+ punpckhwd_r2r(mm3, mm6); // mm6 = 10 14 11 15]\r
+ movq_r2r(mm4, mm3); // mm3 = [ 2 6 3 7]\r
+\r
+ punpckldq_r2r(mm2, mm0); // final result mm0 = row1 [0 4 8 12]\r
+\r
+ punpckhdq_r2r(mm2, mm1); // mm1 = final result mm1 = row2 [1 5 9 13]\r
+ ; // slot\r
+\r
+ movq_r2m(mm0, *(inptr + ROW_STRIDE*4 + 4)); // store row 1\r
+ punpckldq_r2r(mm6, mm4); // final result mm4 = row3 [2 6 10 14]\r
+\r
+ movq_m2r(*(out + ROW_STRIDE * 4 ), mm0);\r
+ punpckhdq_r2r(mm6, mm3); // final result mm3 = row4 [3 7 11 15]\r
+ \r
+ movq_r2m(mm4, *(inptr + ROW_STRIDE*6 + 4)); // store row 3\r
+ movq_r2r(mm0, mm4); // mm4 = copy of row1[A B C D]\r
+\r
+ movq_r2m(mm1, *(inptr + ROW_STRIDE*5 + 4)); // store row 2\r
+ ; // slot\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE * 5 ), mm1);\r
+ ; // slot\r
+\r
+ movq_r2m(mm3, *(inptr + ROW_STRIDE*7 + 4)); // store row 4\r
+ punpcklwd_r2r(mm1, mm0); // mm0 = [ 0 4 1 5]\r
+\r
+ // 3) transpose lower-left\r
+// movq mm0, qword ptr [OUT + ROW_STRIDE * 4 ]\r
+\r
+// movq mm1, qword ptr [OUT + ROW_STRIDE * 5 ]\r
+// movq mm4, mm0; // mm4 = copy of row1[A B C D]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE * 6 ), mm2);\r
+// punpcklwd mm0, mm1; // mm0 = [ 0 4 1 5]\r
+ punpckhwd_r2r(mm1, mm4); // mm4 = [ 2 6 3 7]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE * 7 ), mm3);\r
+ movq_r2r(mm2, mm6);\r
+\r
+ punpcklwd_r2r(mm3, mm2); // mm2 = [ 8 12 9 13]\r
+ movq_r2r(mm0, mm1); // mm1 = [ 0 4 1 5]\r
+\r
+ punpckhwd_r2r(mm3, mm6); // mm6 = 10 14 11 15]\r
+ movq_r2r(mm4, mm3); // mm3 = [ 2 6 3 7]\r
+\r
+ punpckldq_r2r(mm2, mm0); // final result mm0 = row1 [0 4 8 12]\r
+\r
+ punpckhdq_r2r(mm2, mm1); // mm1 = final result mm1 = row2 [1 5 9 13]\r
+ ;//slot\r
+\r
+ movq_r2m(mm0, *(inptr + ROW_STRIDE * 0 + 4 )); // store row 1\r
+ punpckldq_r2r(mm6, mm4); // final result mm4 = row3 [2 6 10 14]\r
+\r
+// begin reading next quadrant (upper-right)\r
+ movq_m2r(*(out + ROW_STRIDE*0 + 4), mm0);\r
+ punpckhdq_r2r(mm6, mm3); // final result mm3 = row4 [3 7 11 15]\r
+\r
+ movq_r2m(mm4, *(inptr + ROW_STRIDE * 2 + 4)); // store row 3\r
+ movq_r2r(mm0, mm4); // mm4 = copy of row1[A B C D]\r
+\r
+ movq_r2m(mm1, *(inptr + ROW_STRIDE * 1 + 4)); // store row 2\r
+ movq_m2r(*(out + ROW_STRIDE*1 + 4), mm1);\r
+\r
+ movq_r2m(mm3, *(inptr + ROW_STRIDE * 3 + 4)); // store row 4\r
+ punpcklwd_r2r(mm1, mm0); // mm0 = [ 0 4 1 5]\r
+\r
+\r
+ // 2) transpose lower-right quadrant\r
+\r
+// movq mm0, qword ptr [OUT + ROW_STRIDE*4 + 8]\r
+\r
+// movq mm1, qword ptr [OUT + ROW_STRIDE*5 + 8]\r
+// movq mm4, mm0; // mm4 = copy of row1[A B C D]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE*2 + 4), mm2);\r
+// punpcklwd mm0, mm1; // mm0 = [ 0 4 1 5]\r
+ punpckhwd_r2r(mm1, mm4); // mm4 = [ 2 6 3 7]\r
+ \r
+ movq_m2r(*(out + ROW_STRIDE*3 + 4), mm3);\r
+ movq_r2r(mm2, mm6);\r
+\r
+ punpcklwd_r2r(mm3, mm2); // mm2 = [ 8 12 9 13]\r
+ movq_r2r(mm0, mm1); // mm1 = [ 0 4 1 5]\r
+\r
+ punpckhwd_r2r(mm3, mm6); // mm6 = 10 14 11 15]\r
+ movq_r2r(mm4, mm3); // mm3 = [ 2 6 3 7]\r
+\r
+ punpckldq_r2r(mm2, mm0); // final result mm0 = row1 [0 4 8 12]\r
+\r
+ punpckhdq_r2r(mm2, mm1); // mm1 = final result mm1 = row2 [1 5 9 13]\r
+ ; // slot\r
+\r
+ movq_r2m(mm0, *(inptr + ROW_STRIDE*4)); // store row 1\r
+ punpckldq_r2r(mm6, mm4); // final result mm4 = row3 [2 6 10 14]\r
+\r
+ movq_r2m(mm1, *(inptr + ROW_STRIDE*5)); // store row 2\r
+ punpckhdq_r2r(mm6, mm3); // final result mm3 = row4 [3 7 11 15]\r
+\r
+ movq_r2m(mm4, *(inptr + ROW_STRIDE*6)); // store row 3\r
+ ; // slot\r
+\r
+ movq_r2m(mm3, *(inptr + ROW_STRIDE*7)); // store row 4\r
+ ; // slot\r
+ \r
+}\r
+\r
+\r
+static void \r
+idct_mmx32_cols( short *blk ) // transform all 8 cols of 8x8 iDCT block\r
+{\r
+ int x;\r
+ short *inptr = blk;\r
+\r
+ // Despite the function's name, the matrix is transformed\r
+ // row by row. This function is identical to idct_mmx32_rows(),\r
+ // except for the SHIFT amount and ROUND_INV amount.\r
+\r
+ // this subroutine performs two operations\r
+ // 1) iDCT row transform\r
+ // for( i = 0; i < 8; ++ i)\r
+ // DCT_8_INV_ROW_1( blk[i*8], qwTemp[i] );\r
+ //\r
+ // 2) transpose the matrix (which was stored in qwTemp[])\r
+ // qwTemp[] -> [8x8 matrix transpose] -> blk[]\r
+\r
+\r
+ for (x=0; x<8; x++) { // transform one row per iteration\r
+\r
+ movq_m2r(*(inptr), mm0); // 0 ; x3 x2 x1 x0\r
+\r
+ movq_m2r(*(inptr+4), mm1); // 1 ; x7 x6 x5 x4\r
+ movq_r2r(mm0, mm2); // 2 ; x3 x2 x1 x0\r
+\r
+ movq_m2r(*(tab_i_01234567), mm3); // 3 ; w06 w04 w02 w00\r
+ punpcklwd_r2r(mm1, mm0); // x5 x1 x4 x0\r
+\r
+// ----------\r
+ movq_r2r(mm0, mm5); // 5 ; x5 x1 x4 x0\r
+ punpckldq_r2r(mm0, mm0); // x4 x0 x4 x0\r
+\r
+ movq_m2r(*(tab_i_01234567+4), mm4); // 4 ; w07 w05 w03 w01\r
+ punpckhwd_r2r(mm1, mm2); // 1 ; x7 x3 x6 x2\r
+\r
+ pmaddwd_r2r(mm0, mm3); // x4*w06+x0*w04 x4*w02+x0*w00\r
+ movq_r2r(mm2, mm6); // 6 ; x7 x3 x6 x2\r
+\r
+ movq_m2r(*(tab_i_01234567+16), mm1);// 1 ; w22 w20 w18 w16\r
+ punpckldq_r2r(mm2, mm2); // x6 x2 x6 x2\r
+\r
+ pmaddwd_r2r(mm2, mm4); // x6*w07+x2*w05 x6*w03+x2*w01\r
+ punpckhdq_r2r(mm5, mm5); // x5 x1 x5 x1\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+8), mm0);// x4*w14+x0*w12 x4*w10+x0*w08\r
+ punpckhdq_r2r(mm6, mm6); // x7 x3 x7 x3\r
+\r
+ movq_m2r(*(tab_i_01234567+20), mm7);// 7 ; w23 w21 w19 w17\r
+ pmaddwd_r2r(mm5, mm1); // x5*w22+x1*w20 x5*w18+x1*w16\r
+\r
+ paddd_m2r(*(r_inv_col), mm3);// +rounder\r
+ pmaddwd_r2r(mm6, mm7); // x7*w23+x3*w21 x7*w19+x3*w17\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+12), mm2);// x6*w15+x2*w13 x6*w11+x2*w09\r
+ paddd_r2r(mm4, mm3); // 4 ; a1=sum(even1) a0=sum(even0)\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+24), mm5);// x5*w30+x1*w28 x5*w26+x1*w24\r
+ movq_r2r(mm3, mm4); // 4 ; a1 a0\r
+\r
+ pmaddwd_m2r(*(tab_i_01234567+28), mm6);// x7*w31+x3*w29 x7*w27+x3*w25\r
+ paddd_r2r(mm7, mm1); // 7 ; b1=sum(odd1) b0=sum(odd0)\r
+\r
+ paddd_m2r(*(r_inv_col), mm0);// +rounder\r
+ psubd_r2r(mm1, mm3); // a1-b1 a0-b0\r
+\r
+ psrad_i2r(SHIFT_INV_COL, mm3); // y6=a1-b1 y7=a0-b0\r
+ paddd_r2r(mm4, mm1); // 4 ; a1+b1 a0+b0\r
+\r
+ paddd_r2r(mm2, mm0); // 2 ; a3=sum(even3) a2=sum(even2)\r
+ psrad_i2r(SHIFT_INV_COL, mm1); // y1=a1+b1 y0=a0+b0\r
+\r
+ paddd_r2r(mm6, mm5); // 6 ; b3=sum(odd3) b2=sum(odd2)\r
+ movq_r2r(mm0, mm4); // 4 ; a3 a2\r
+\r
+ paddd_r2r(mm5, mm0); // a3+b3 a2+b2\r
+ psubd_r2r(mm5, mm4); // 5 ; a3-b3 a2-b2\r
+\r
+\r
+ psrad_i2r(SHIFT_INV_COL, mm4); // y4=a3-b3 y5=a2-b2\r
+ psrad_i2r(SHIFT_INV_COL, mm0); // y3=a3+b3 y2=a2+b2\r
+\r
+ packssdw_r2r(mm3, mm4); // 3 ; y6 y7 y4 y5\r
+\r
+ packssdw_r2r(mm0, mm1); // 0 ; y3 y2 y1 y0\r
+ movq_r2r(mm4, mm7); // 7 ; y6 y7 y4 y5\r
+\r
+ psrld_i2r(16, mm4); // 0 y6 0 y4\r
+\r
+ movq_r2m(mm1, *(inptr)); // 1 ; save y3 y2 y1 y0\r
+ pslld_i2r(16, mm7); // y7 0 y5 0\r
+\r
+ por_r2r(mm4, mm7); // 4 ; y7 y6 y5 y4\r
+\r
+ // begin processing row 1\r
+ movq_r2m(mm7, *(inptr+4)); // 7 ; save y7 y6 y5 y4\r
+\r
+ inptr += 8;\r
+ }\r
+ // done with the iDCT column-transformation\r
+}\r
+\r
+// \r
+// public interface to MMX32 IDCT 8x8 operation\r
+//\r
+void\r
+gst_idct_mmx32_idct( short *blk )\r
+{\r
+ // 1) iDCT row transformation\r
+ idct_mmx32_rows( blk ); // 1) transform iDCT row, and transpose\r
+\r
+ // 2) iDCT column transformation\r
+ idct_mmx32_cols( blk ); // 2) transform iDCT row, and transpose\r
+\r
+ emms(); // restore processor state\r
+ // all done\r
+}\r
--- /dev/null
+/*
+ * the input data is tranposed and each 16 bit element in the 8x8 matrix
+ * is left aligned:
+ * for example in 11...1110000 format
+ * If the iDCT is of I macroblock then 0.5 needs to be added to the;DC Component
+ * (element[0][0] of the matrix)
+ *
+ * Notes:
+ * - the scratchN variables should be put on the stack to avoid
+ * reentrancy problems
+ */
+
+#ifdef PIC
+#define pic_offset(a) a@GOTOFF(%ebx)
+#else
+#define pic_offset(a) a
+#endif
+
+/* extrn re_matrix */
+
+.data
+ .align 16
+ .type preSC,@object
+preSC: .short 16384,22725,21407,19266,16384,12873,8867,4520
+ .short 22725,31521,29692,26722,22725,17855,12299,6270
+ .short 21407,29692,27969,25172,21407,16819,11585,5906
+ .short 19266,26722,25172,22654,19266,15137,10426,5315
+ .short 16384,22725,21407,19266,16384,12873,8867,4520
+ .short 12873,17855,16819,15137,25746,20228,13933,7103
+ .short 17734,24598,23170,20853,17734,13933,9597,4892
+ .short 18081,25080,23624,21261,18081,14206,9785,4988
+ .size preSC,128
+ .align 8
+ .type x0005000200010001,@object
+ .size x0005000200010001,8
+x0005000200010001:
+ .long 0x00010001,0x00050002
+ .align 8
+ .type x0040000000000000,@object
+ .size x0040000000000000,8
+x0040000000000000:
+ .long 0, 0x00400000
+ .align 8
+ .type x5a825a825a825a82,@object
+ .size x5a825a825a825a82,8
+x5a825a825a825a82:
+ .long 0x5a825a82, 0x5a825a82
+ .align 8
+ .type x539f539f539f539f,@object
+ .size x539f539f539f539f,8
+x539f539f539f539f:
+ .long 0x539f539f,0x539f539f
+ .align 8
+ .type x4546454645464546,@object
+ .size x4546454645464546,8
+x4546454645464546:
+ .long 0x45464546,0x45464546
+ .align 8
+ .type x61f861f861f861f8,@object
+ .size x61f861f861f861f8,8
+x61f861f861f861f8:
+ .long 0x61f861f8,0x61f861f8
+ .type x0004000000000000,@object
+ .size x0004000000000000,8
+x0004000000000000:
+ .long 0x00000000,0x00040000
+ .type x0000000000000004,@object
+ .size x0000000000000004,8
+x0000000000000004:
+ .long 0x00000004,0x00000000
+ .align 8
+ .type scratch1,@object
+ .size scratch1,8
+scratch1:
+ .long 0,0
+ .align 8
+ .type scratch3,@object
+ .size scratch3,8
+scratch3:
+ .long 0,0
+ .align 8
+ .type scratch5,@object
+ .size scratch5,8
+scratch5:
+ .long 0,0
+ .align 8
+ .type scratch7,@object
+ .size scratch7,8
+scratch7:
+ .long 0,0
+ .type x0,@object
+ .size x0,8
+x0:
+ .long 0,0
+ .align 8
+.text
+ .align 4
+.globl gst_idct_mmx_idct
+ .type gst_idct_mmx_idct,@function
+gst_idct_mmx_idct:
+ pushl %ebp
+ movl %esp,%ebp
+ pushl %ebx
+ pushl %ecx
+ pushl %edx
+ pushl %esi
+ pushl %edi
+#ifdef PIC
+ call here
+here: popl %ebx
+ addl $_GLOBAL_OFFSET_TABLE_+[.-here],%ebx
+#endif
+ movl 8(%ebp),%esi /* source matrix */
+ movq (%esi), %mm0
+ paddw pic_offset(x0000000000000004), %mm0
+ movq 8(%esi), %mm1
+ psllw $4, %mm0
+ movq 16(%esi), %mm2
+ psllw $4, %mm1
+ movq 24(%esi), %mm3
+ psllw $4, %mm2
+ movq 32(%esi), %mm4
+ psllw $4, %mm3
+ movq 40(%esi), %mm5
+ psllw $4, %mm4
+ movq 48(%esi), %mm6
+ psllw $4, %mm5
+ movq 56(%esi), %mm7
+ psllw $4, %mm6
+ psllw $4, %mm7
+ movq %mm0, (%esi)
+ movq %mm1, 8(%esi)
+ movq %mm2,16(%esi)
+ movq %mm3,24(%esi)
+ movq %mm4,32(%esi)
+ movq %mm5,40(%esi)
+ movq %mm6,48(%esi)
+ movq %mm7,56(%esi)
+ movq 64(%esi), %mm0
+ movq 72(%esi), %mm1
+ psllw $4, %mm0
+ movq 80(%esi), %mm2
+ psllw $4, %mm1
+ movq 88(%esi), %mm3
+ psllw $4, %mm2
+ movq 96(%esi), %mm4
+ psllw $4, %mm3
+ movq 104(%esi), %mm5
+ psllw $4, %mm4
+ movq 112(%esi), %mm6
+ psllw $4, %mm5
+ movq 120(%esi), %mm7
+ psllw $4, %mm6
+ psllw $4, %mm7
+ movq %mm0,64(%esi)
+ movq %mm1,72(%esi)
+ movq %mm2,80(%esi)
+ movq %mm3,88(%esi)
+ movq %mm4,96(%esi)
+ movq %mm5,104(%esi)
+ movq %mm6,112(%esi)
+ movq %mm7,120(%esi)
+ leal pic_offset(preSC), %ecx
+/* column 0: even part
+ * use V4, V12, V0, V8 to produce V22..V25
+ */
+ movq 8*12(%ecx), %mm0 /* maybe the first mul can be done together */
+ /* with the dequantization in iHuff module */
+ pmulhw 8*12(%esi), %mm0 /* V12 */
+ movq 8*4(%ecx), %mm1
+ pmulhw 8*4(%esi), %mm1 /* V4 */
+ movq (%ecx), %mm3
+ psraw $1, %mm0 /* t64=t66 */
+ pmulhw (%esi), %mm3 /* V0 */
+ movq 8*8(%ecx), %mm5 /* duplicate V4 */
+ movq %mm1, %mm2 /* added 11/1/96 */
+ pmulhw 8*8(%esi),%mm5 /* V8 */
+ psubsw %mm0, %mm1 /* V16 */
+ pmulhw pic_offset(x5a825a825a825a82), %mm1 /* 23170 ->V18 */
+ paddsw %mm0, %mm2 /* V17 */
+ movq %mm2, %mm0 /* duplicate V17 */
+ psraw $1, %mm2 /* t75=t82 */
+ psraw $2, %mm0 /* t72 */
+ movq %mm3, %mm4 /* duplicate V0 */
+ paddsw %mm5, %mm3 /* V19 */
+ psubsw %mm5, %mm4 /* V20 ;mm5 free */
+/* moved from the block below */
+ movq 8*10(%ecx), %mm7
+ psraw $1, %mm3 /* t74=t81 */
+ movq %mm3, %mm6 /* duplicate t74=t81 */
+ psraw $2, %mm4 /* t77=t79 */
+ psubsw %mm0, %mm1 /* V21 ; mm0 free */
+ paddsw %mm2, %mm3 /* V22 */
+ movq %mm1, %mm5 /* duplicate V21 */
+ paddsw %mm4, %mm1 /* V23 */
+ movq %mm3, 8*4(%esi) /* V22 */
+ psubsw %mm5, %mm4 /* V24; mm5 free */
+ movq %mm1, 8*12(%esi) /* V23 */
+ psubsw %mm2, %mm6 /* V25; mm2 free */
+ movq %mm4, (%esi) /* V24 */
+/* keep mm6 alive all along the next block */
+ /* movq %mm6, 8*8(%esi) V25 */
+/* column 0: odd part
+ * use V2, V6, V10, V14 to produce V31, V39, V40, V41
+ */
+/* moved above: movq 8*10(%ecx), %mm7 */
+
+ pmulhw 8*10(%esi), %mm7 /* V10 */
+ movq 8*6(%ecx), %mm0
+ pmulhw 8*6(%esi), %mm0 /* V6 */
+ movq 8*2(%ecx), %mm5
+ movq %mm7, %mm3 /* duplicate V10 */
+ pmulhw 8*2(%esi), %mm5 /* V2 */
+ movq 8*14(%ecx), %mm4
+ psubsw %mm0, %mm7 /* V26 */
+ pmulhw 8*14(%esi), %mm4 /* V14 */
+ paddsw %mm0, %mm3 /* V29 ; free mm0 */
+ movq %mm7, %mm1 /* duplicate V26 */
+ psraw $1, %mm3 /* t91=t94 */
+ pmulhw pic_offset(x539f539f539f539f),%mm7 /* V33 */
+ psraw $1, %mm1 /* t96 */
+ movq %mm5, %mm0 /* duplicate V2 */
+ psraw $2, %mm4 /* t85=t87 */
+ paddsw %mm4,%mm5 /* V27 */
+ psubsw %mm4, %mm0 /* V28 ; free mm4 */
+ movq %mm0, %mm2 /* duplicate V28 */
+ psraw $1, %mm5 /* t90=t93 */
+ pmulhw pic_offset(x4546454645464546),%mm0 /* V35 */
+ psraw $1, %mm2 /* t97 */
+ movq %mm5, %mm4 /* duplicate t90=t93 */
+ psubsw %mm2, %mm1 /* V32 ; free mm2 */
+ pmulhw pic_offset(x61f861f861f861f8),%mm1 /* V36 */
+ psllw $1, %mm7 /* t107 */
+ paddsw %mm3, %mm5 /* V31 */
+ psubsw %mm3, %mm4 /* V30 ; free mm3 */
+ pmulhw pic_offset(x5a825a825a825a82),%mm4 /* V34 */
+ nop
+ psubsw %mm1, %mm0 /* V38 */
+ psubsw %mm7, %mm1 /* V37 ; free mm7 */
+ psllw $1, %mm1 /* t114 */
+/* move from the next block */
+ movq %mm6, %mm3 /* duplicate V25 */
+/* move from the next block */
+ movq 8*4(%esi), %mm7 /* V22 */
+ psllw $1, %mm0 /* t110 */
+ psubsw %mm5, %mm0 /* V39 (mm5 needed for next block) */
+ psllw $2, %mm4 /* t112 */
+/* moved from the next block */
+ movq 8*12(%esi), %mm2 /* V23 */
+ psubsw %mm0, %mm4 /* V40 */
+ paddsw %mm4, %mm1 /* V41; free mm0 */
+/* moved from the next block */
+ psllw $1, %mm2 /* t117=t125 */
+/* column 0: output butterfly */
+/* moved above:
+ * movq %mm6, %mm3 duplicate V25
+ * movq 8*4(%esi), %mm7 V22
+ * movq 8*12(%esi), %mm2 V23
+ * psllw $1, %mm2 t117=t125
+ */
+ psubsw %mm1, %mm6 /* tm6 */
+ paddsw %mm1, %mm3 /* tm8; free mm1 */
+ movq %mm7, %mm1 /* duplicate V22 */
+ paddsw %mm5, %mm7 /* tm0 */
+ movq %mm3, 8*8(%esi) /* tm8; free mm3 */
+ psubsw %mm5, %mm1 /* tm14; free mm5 */
+ movq %mm6, 8*6(%esi) /* tm6; free mm6 */
+ movq %mm2, %mm3 /* duplicate t117=t125 */
+ movq (%esi), %mm6 /* V24 */
+ paddsw %mm0, %mm2 /* tm2 */
+ movq %mm7, (%esi) /* tm0; free mm7 */
+ psubsw %mm0, %mm3 /* tm12; free mm0 */
+ movq %mm1, 8*14(%esi) /* tm14; free mm1 */
+ psllw $1, %mm6 /* t119=t123 */
+ movq %mm2, 8*2(%esi) /* tm2; free mm2 */
+ movq %mm6, %mm0 /* duplicate t119=t123 */
+ movq %mm3, 8*12(%esi) /* tm12; free mm3 */
+ paddsw %mm4, %mm6 /* tm4 */
+/* moved from next block */
+ movq 8*5(%ecx), %mm1
+ psubsw %mm4, %mm0 /* tm10; free mm4 */
+/* moved from next block */
+ pmulhw 8*5(%esi), %mm1 /* V5 */
+ movq %mm6, 8*4(%esi) /* tm4; free mm6 */
+ movq %mm0, 8*10(%esi) /* tm10; free mm0 */
+/* column 1: even part
+ * use V5, V13, V1, V9 to produce V56..V59
+ */
+/* moved to prev block:
+ * movq 8*5(%ecx), %mm1
+ * pmulhw 8*5(%esi), %mm1 V5
+ */
+ movq 8*13(%ecx), %mm7
+ psllw $1, %mm1 /* t128=t130 */
+ pmulhw 8*13(%esi), %mm7 /* V13 */
+ movq %mm1, %mm2 /* duplicate t128=t130 */
+ movq 8(%ecx), %mm3
+ pmulhw 8(%esi), %mm3 /* V1 */
+ movq 8*9(%ecx), %mm5
+ psubsw %mm7, %mm1 /* V50 */
+ pmulhw 8*9(%esi), %mm5 /* V9 */
+ paddsw %mm7, %mm2 /* V51 */
+ pmulhw pic_offset(x5a825a825a825a82), %mm1 /* 23170 ->V52 */
+ movq %mm2, %mm6 /* duplicate V51 */
+ psraw $1, %mm2 /* t138=t144 */
+ movq %mm3, %mm4 /* duplicate V1 */
+ psraw $2, %mm6 /* t136 */
+ paddsw %mm5, %mm3 /* V53 */
+ psubsw %mm5, %mm4 /* V54 ;mm5 free */
+ movq %mm3, %mm7 /* duplicate V53 */
+/* moved from next block */
+ movq 8*11(%ecx), %mm0
+ psraw $1, %mm4 /* t140=t142 */
+ psubsw %mm6, %mm1 /* V55 ; mm6 free */
+ paddsw %mm2, %mm3 /* V56 */
+ movq %mm4, %mm5 /* duplicate t140=t142 */
+ paddsw %mm1, %mm4 /* V57 */
+ movq %mm3, 8*5(%esi) /* V56 */
+ psubsw %mm1, %mm5 /* V58; mm1 free */
+ movq %mm4, 8*13(%esi) /* V57 */
+ psubsw %mm2, %mm7 /* V59; mm2 free */
+ movq %mm5, 8*9(%esi) /* V58 */
+/* keep mm7 alive all along the next block
+ * movq %mm7, 8(%esi) V59
+ * moved above
+ * movq 8*11(%ecx), %mm0
+ */
+ pmulhw 8*11(%esi), %mm0 /* V11 */
+ movq 8*7(%ecx), %mm6
+ pmulhw 8*7(%esi), %mm6 /* V7 */
+ movq 8*15(%ecx), %mm4
+ movq %mm0, %mm3 /* duplicate V11 */
+ pmulhw 8*15(%esi), %mm4 /* V15 */
+ movq 8*3(%ecx), %mm5
+ psllw $1, %mm6 /* t146=t152 */
+ pmulhw 8*3(%esi), %mm5 /* V3 */
+ paddsw %mm6, %mm0 /* V63 */
+/* note that V15 computation has a correction step:
+ * this is a 'magic' constant that rebiases the results to be closer to the
+ * expected result. this magic constant can be refined to reduce the error
+ * even more by doing the correction step in a later stage when the number
+ * is actually multiplied by 16
+ */
+ paddw pic_offset(x0005000200010001), %mm4
+ psubsw %mm6, %mm3 /* V60 ; free mm6 */
+ psraw $1, %mm0 /* t154=t156 */
+ movq %mm3, %mm1 /* duplicate V60 */
+ pmulhw pic_offset(x539f539f539f539f), %mm1 /* V67 */
+ movq %mm5, %mm6 /* duplicate V3 */
+ psraw $2, %mm4 /* t148=t150 */
+ paddsw %mm4, %mm5 /* V61 */
+ psubsw %mm4, %mm6 /* V62 ; free mm4 */
+ movq %mm5, %mm4 /* duplicate V61 */
+ psllw $1, %mm1 /* t169 */
+ paddsw %mm0, %mm5 /* V65 -> result */
+ psubsw %mm0, %mm4 /* V64 ; free mm0 */
+ pmulhw pic_offset(x5a825a825a825a82), %mm4 /* V68 */
+ psraw $1, %mm3 /* t158 */
+ psubsw %mm6, %mm3 /* V66 */
+ movq %mm5, %mm2 /* duplicate V65 */
+ pmulhw pic_offset(x61f861f861f861f8), %mm3 /* V70 */
+ psllw $1, %mm6 /* t165 */
+ pmulhw pic_offset(x4546454645464546), %mm6 /* V69 */
+ psraw $1, %mm2 /* t172 */
+/* moved from next block */
+ movq 8*5(%esi), %mm0 /* V56 */
+ psllw $1, %mm4 /* t174 */
+/* moved from next block */
+ psraw $1, %mm0 /* t177=t188 */
+ nop
+ psubsw %mm3, %mm6 /* V72 */
+ psubsw %mm1, %mm3 /* V71 ; free mm1 */
+ psubsw %mm2, %mm6 /* V73 ; free mm2 */
+/* moved from next block */
+ psraw $1, %mm5 /* t178=t189 */
+ psubsw %mm6, %mm4 /* V74 */
+/* moved from next block */
+ movq %mm0, %mm1 /* duplicate t177=t188 */
+ paddsw %mm4, %mm3 /* V75 */
+/* moved from next block */
+ paddsw %mm5, %mm0 /* tm1 */
+/* location
+ * 5 - V56
+ * 13 - V57
+ * 9 - V58
+ * X - V59, mm7
+ * X - V65, mm5
+ * X - V73, mm6
+ * X - V74, mm4
+ * X - V75, mm3
+ * free mm0, mm1 & mm2
+ * moved above
+ * movq 8*5(%esi), %mm0 V56
+ * psllw $1, %mm0 t177=t188 ! new !!
+ * psllw $1, %mm5 t178=t189 ! new !!
+ * movq %mm0, %mm1 duplicate t177=t188
+ * paddsw %mm5, %mm0 tm1
+ */
+ movq 8*13(%esi), %mm2 /* V57 */
+ psubsw %mm5, %mm1 /* tm15; free mm5 */
+ movq %mm0, 8(%esi) /* tm1; free mm0 */
+ psraw $1, %mm7 /* t182=t184 ! new !! */
+/* save the store as used directly in the transpose
+ * movq %mm1, 120(%esi) tm15; free mm1
+ */
+ movq %mm7, %mm5 /* duplicate t182=t184 */
+ psubsw %mm3, %mm7 /* tm7 */
+ paddsw %mm3, %mm5 /* tm9; free mm3 */
+ movq 8*9(%esi), %mm0 /* V58 */
+ movq %mm2, %mm3 /* duplicate V57 */
+ movq %mm7, 8*7(%esi) /* tm7; free mm7 */
+ psubsw %mm6, %mm3 /* tm13 */
+ paddsw %mm6, %mm2 /* tm3 ; free mm6 */
+/* moved up from the transpose */
+ movq %mm3, %mm7
+/* moved up from the transpose */
+ punpcklwd %mm1, %mm3
+ movq %mm0, %mm6 /* duplicate V58 */
+ movq %mm2, 8*3(%esi) /* tm3; free mm2 */
+ paddsw %mm4, %mm0 /* tm5 */
+ psubsw %mm4, %mm6 /* tm11; free mm4 */
+/* moved up from the transpose */
+ punpckhwd %mm1, %mm7
+ movq %mm0, 8*5(%esi) /* tm5; free mm0 */
+/* moved up from the transpose */
+ movq %mm5, %mm2
+/* transpose - M4 part
+ * --------- ---------
+ * | M1 | M2 | | M1'| M3'|
+ * --------- --> ---------
+ * | M3 | M4 | | M2'| M4'|
+ * --------- ---------
+ * Two alternatives: use full mmword approach so the following code can be
+ * scheduled before the transpose is done without stores, or use the faster
+ * half mmword stores (when possible)
+ */
+ movd %mm3, 8*9+4(%esi) /* MS part of tmt9 */
+ punpcklwd %mm6, %mm5
+ movd %mm7, 8*13+4(%esi) /* MS part of tmt13 */
+ punpckhwd %mm6, %mm2
+ movd %mm5, 8*9(%esi) /* LS part of tmt9 */
+ punpckhdq %mm3, %mm5 /* free mm3 */
+ movd %mm2, 8*13(%esi) /* LS part of tmt13 */
+ punpckhdq %mm7, %mm2 /* free mm7 */
+/* moved up from the M3 transpose */
+ movq 8*8(%esi), %mm0
+/* moved up from the M3 transpose */
+ movq 8*10(%esi), %mm1
+/* moved up from the M3 transpose */
+ movq %mm0, %mm3
+/* shuffle the rest of the data, and write it with 2 mmword writes */
+ movq %mm5, 8*11(%esi) /* tmt11 */
+/* moved up from the M3 transpose */
+ punpcklwd %mm1, %mm0
+ movq %mm2, 8*15(%esi) /* tmt15 */
+/* moved up from the M3 transpose */
+ punpckhwd %mm1, %mm3
+/* transpose - M3 part
+ * moved up to previous code section
+ * movq 8*8(%esi), %mm0
+ * movq 8*10(%esi), %mm1
+ * movq %mm0, %mm3
+ * punpcklwd %mm1, %mm0
+ * punpckhwd %mm1, %mm3
+ */
+ movq 8*12(%esi), %mm6
+ movq 8*14(%esi), %mm4
+ movq %mm6, %mm2
+/* shuffle the data and write the lower parts of the transposed in 4 dwords */
+ punpcklwd %mm4, %mm6
+ movq %mm0, %mm1
+ punpckhdq %mm6, %mm1
+ movq %mm3, %mm7
+ punpckhwd %mm4, %mm2 /* free mm4 */
+ punpckldq %mm6, %mm0 /* free mm6 */
+/* moved from next block */
+ movq 8*13(%esi), %mm4 /* tmt13 */
+ punpckldq %mm2, %mm3
+ punpckhdq %mm2, %mm7 /* free mm2 */
+/* moved from next block */
+ movq %mm3, %mm5 /* duplicate tmt5 */
+/* column 1: even part (after transpose)
+* moved above
+* movq %mm3, %mm5 duplicate tmt5
+* movq 8*13(%esi), %mm4 tmt13
+*/
+ psubsw %mm4, %mm3 /* V134 */
+ pmulhw pic_offset(x5a825a825a825a82), %mm3 /* 23170 ->V136 */
+ movq 8*9(%esi), %mm6 /* tmt9 */
+ paddsw %mm4, %mm5 /* V135 ; mm4 free */
+ movq %mm0, %mm4 /* duplicate tmt1 */
+ paddsw %mm6, %mm0 /* V137 */
+ psubsw %mm6, %mm4 /* V138 ; mm6 free */
+ psllw $2, %mm3 /* t290 */
+ psubsw %mm5, %mm3 /* V139 */
+ movq %mm0, %mm6 /* duplicate V137 */
+ paddsw %mm5, %mm0 /* V140 */
+ movq %mm4, %mm2 /* duplicate V138 */
+ paddsw %mm3, %mm2 /* V141 */
+ psubsw %mm3, %mm4 /* V142 ; mm3 free */
+ movq %mm0, 8*9(%esi) /* V140 */
+ psubsw %mm5, %mm6 /* V143 ; mm5 free */
+/* moved from next block */
+ movq 8*11(%esi), %mm0 /* tmt11 */
+ movq %mm2, 8*13(%esi) /* V141 */
+/* moved from next block */
+ movq %mm0, %mm2 /* duplicate tmt11 */
+/* column 1: odd part (after transpose) */
+/* moved up to the prev block
+ * movq 8*11(%esi), %mm0 tmt11
+ * movq %mm0, %mm2 duplicate tmt11
+ */
+ movq 8*15(%esi), %mm5 /* tmt15 */
+ psubsw %mm7, %mm0 /* V144 */
+ movq %mm0, %mm3 /* duplicate V144 */
+ paddsw %mm7, %mm2 /* V147 ; free mm7 */
+ pmulhw pic_offset(x539f539f539f539f), %mm0 /* 21407-> V151 */
+ movq %mm1, %mm7 /* duplicate tmt3 */
+ paddsw %mm5, %mm7 /* V145 */
+ psubsw %mm5, %mm1 /* V146 ; free mm5 */
+ psubsw %mm1, %mm3 /* V150 */
+ movq %mm7, %mm5 /* duplicate V145 */
+ pmulhw pic_offset(x4546454645464546), %mm1 /* 17734-> V153 */
+ psubsw %mm2, %mm5 /* V148 */
+ pmulhw pic_offset(x61f861f861f861f8), %mm3 /* 25080-> V154 */
+ psllw $2, %mm0 /* t311 */
+ pmulhw pic_offset(x5a825a825a825a82), %mm5 /* 23170-> V152 */
+ paddsw %mm2, %mm7 /* V149 ; free mm2 */
+ psllw $1, %mm1 /* t313 */
+ nop /* without the nop - freeze here for one clock */
+ movq %mm3, %mm2 /* duplicate V154 */
+ psubsw %mm0, %mm3 /* V155 ; free mm0 */
+ psubsw %mm2, %mm1 /* V156 ; free mm2 */
+/* moved from the next block */
+ movq %mm6, %mm2 /* duplicate V143 */
+/* moved from the next block */
+ movq 8*13(%esi), %mm0 /* V141 */
+ psllw $1, %mm1 /* t315 */
+ psubsw %mm7, %mm1 /* V157 (keep V149) */
+ psllw $2, %mm5 /* t317 */
+ psubsw %mm1, %mm5 /* V158 */
+ psllw $1, %mm3 /* t319 */
+ paddsw %mm5, %mm3 /* V159 */
+/* column 1: output butterfly (after transform)
+ * moved to the prev block
+ * movq %mm6, %mm2 duplicate V143
+ * movq 8*13(%esi), %mm0 V141
+ */
+ psubsw %mm3, %mm2 /* V163 */
+ paddsw %mm3, %mm6 /* V164 ; free mm3 */
+ movq %mm4, %mm3 /* duplicate V142 */
+ psubsw %mm5, %mm4 /* V165 ; free mm5 */
+ movq %mm2, pic_offset(scratch7) /* out7 */
+ psraw $4, %mm6
+ psraw $4, %mm4
+ paddsw %mm5, %mm3 /* V162 */
+ movq 8*9(%esi), %mm2 /* V140 */
+ movq %mm0, %mm5 /* duplicate V141 */
+/* in order not to perculate this line up,
+ * we read 72(%esi) very near to this location
+ */
+ movq %mm6, 8*9(%esi) /* out9 */
+ paddsw %mm1, %mm0 /* V161 */
+ movq %mm3, pic_offset(scratch5) /* out5 */
+ psubsw %mm1, %mm5 /* V166 ; free mm1 */
+ movq %mm4, 8*11(%esi) /* out11 */
+ psraw $4, %mm5
+ movq %mm0, pic_offset(scratch3) /* out3 */
+ movq %mm2, %mm4 /* duplicate V140 */
+ movq %mm5, 8*13(%esi) /* out13 */
+ paddsw %mm7, %mm2 /* V160 */
+/* moved from the next block */
+ movq 8(%esi), %mm0
+ psubsw %mm7, %mm4 /* V167 ; free mm7 */
+/* moved from the next block */
+ movq 8*3(%esi), %mm7
+ psraw $4, %mm4
+ movq %mm2, pic_offset(scratch1) /* out1 */
+/* moved from the next block */
+ movq %mm0, %mm1
+ movq %mm4, 8*15(%esi) /* out15 */
+/* moved from the next block */
+ punpcklwd %mm7, %mm0
+/* transpose - M2 parts
+ * moved up to the prev block
+ * movq 8(%esi), %mm0
+ * movq 8*3(%esi), %mm7
+ * movq %mm0, %mm1
+ * punpcklwd %mm7, %mm0
+ */
+ movq 8*5(%esi), %mm5
+ punpckhwd %mm7, %mm1
+ movq 8*7(%esi), %mm4
+ movq %mm5, %mm3
+/* shuffle the data and write the lower parts of the trasposed in 4 dwords */
+ movd %mm0, 8*8(%esi) /* LS part of tmt8 */
+ punpcklwd %mm4, %mm5
+ movd %mm1, 8*12(%esi) /* LS part of tmt12 */
+ punpckhwd %mm4, %mm3
+ movd %mm5, 8*8+4(%esi) /* MS part of tmt8 */
+ punpckhdq %mm5, %mm0 /* tmt10 */
+ movd %mm3, 8*12+4(%esi) /* MS part of tmt12 */
+ punpckhdq %mm3, %mm1 /* tmt14 */
+/* transpose - M1 parts */
+ movq (%esi), %mm7
+ movq 8*2(%esi), %mm2
+ movq %mm7, %mm6
+ movq 8*4(%esi), %mm5
+ punpcklwd %mm2, %mm7
+ movq 8*6(%esi), %mm4
+ punpckhwd %mm2, %mm6 /* free mm2 */
+ movq %mm5, %mm3
+ punpcklwd %mm4, %mm5
+ punpckhwd %mm4, %mm3 /* free mm4 */
+ movq %mm7, %mm2
+ movq %mm6, %mm4
+ punpckldq %mm5, %mm7 /* tmt0 */
+ punpckhdq %mm5, %mm2 /* tmt2 ; free mm5 */
+/* shuffle the rest of the data, and write it with 2 mmword writes */
+ punpckldq %mm3, %mm6 /* tmt4 */
+/* moved from next block */
+ movq %mm2, %mm5 /* duplicate tmt2 */
+ punpckhdq %mm3, %mm4 /* tmt6 ; free mm3 */
+/* moved from next block */
+ movq %mm0, %mm3 /* duplicate tmt10 */
+/* column 0: odd part (after transpose)
+ *moved up to prev block
+ * movq %mm0, %mm3 duplicate tmt10
+ * movq %mm2, %mm5 duplicate tmt2
+ */
+ psubsw %mm4, %mm0 /* V110 */
+ paddsw %mm4, %mm3 /* V113 ; free mm4 */
+ movq %mm0, %mm4 /* duplicate V110 */
+ paddsw %mm1, %mm2 /* V111 */
+ pmulhw pic_offset(x539f539f539f539f), %mm0 /* 21407-> V117 */
+ psubsw %mm1, %mm5 /* V112 ; free mm1 */
+ psubsw %mm5, %mm4 /* V116 */
+ movq %mm2, %mm1 /* duplicate V111 */
+ pmulhw pic_offset(x4546454645464546), %mm5 /* 17734-> V119 */
+ psubsw %mm3, %mm2 /* V114 */
+ pmulhw pic_offset(x61f861f861f861f8), %mm4 /* 25080-> V120 */
+ paddsw %mm3, %mm1 /* V115 ; free mm3 */
+ pmulhw pic_offset(x5a825a825a825a82), %mm2 /* 23170-> V118 */
+ psllw $2, %mm0 /* t266 */
+ movq %mm1, (%esi) /* save V115 */
+ psllw $1, %mm5 /* t268 */
+ psubsw %mm4, %mm5 /* V122 */
+ psubsw %mm0, %mm4 /* V121 ; free mm0 */
+ psllw $1, %mm5 /* t270 */
+ psubsw %mm1, %mm5 /* V123 ; free mm1 */
+ psllw $2, %mm2 /* t272 */
+ psubsw %mm5, %mm2 /* V124 (keep V123) */
+ psllw $1, %mm4 /* t274 */
+ movq %mm5, 8*2(%esi) /* save V123 ; free mm5 */
+ paddsw %mm2, %mm4 /* V125 (keep V124) */
+/* column 0: even part (after transpose) */
+ movq 8*12(%esi), %mm0 /* tmt12 */
+ movq %mm6, %mm3 /* duplicate tmt4 */
+ psubsw %mm0, %mm6 /* V100 */
+ paddsw %mm0, %mm3 /* V101 ; free mm0 */
+ pmulhw pic_offset(x5a825a825a825a82), %mm6 /* 23170 ->V102 */
+ movq %mm7, %mm5 /* duplicate tmt0 */
+ movq 8*8(%esi), %mm1 /* tmt8 */
+ paddsw %mm1, %mm7 /* V103 */
+ psubsw %mm1, %mm5 /* V104 ; free mm1 */
+ movq %mm7, %mm0 /* duplicate V103 */
+ psllw $2, %mm6 /* t245 */
+ paddsw %mm3, %mm7 /* V106 */
+ movq %mm5, %mm1 /* duplicate V104 */
+ psubsw %mm3, %mm6 /* V105 */
+ psubsw %mm3, %mm0 /* V109; free mm3 */
+ paddsw %mm6, %mm5 /* V107 */
+ psubsw %mm6, %mm1 /* V108 ; free mm6 */
+/* column 0: output butterfly (after transform) */
+ movq %mm1, %mm3 /* duplicate V108 */
+ paddsw %mm2, %mm1 /* out4 */
+ psraw $4, %mm1
+ psubsw %mm2, %mm3 /* out10 ; free mm2 */
+ psraw $4, %mm3
+ movq %mm0, %mm6 /* duplicate V109 */
+ movq %mm1, 8*4(%esi) /* out4 ; free mm1 */
+ psubsw %mm4, %mm0 /* out6 */
+ movq %mm3, 8*10(%esi) /* out10 ; free mm3 */
+ psraw $4, %mm0
+ paddsw %mm4, %mm6 /* out8 ; free mm4 */
+ movq %mm7, %mm1 /* duplicate V106 */
+ movq %mm0, 8*6(%esi) /* out6 ; free mm0 */
+ psraw $4, %mm6
+ movq (%esi), %mm4 /* V115 */
+ movq %mm6, 8*8(%esi) /* out8 ; free mm6 */
+ movq %mm5, %mm2 /* duplicate V107 */
+ movq 8*2(%esi), %mm3 /* V123 */
+ paddsw %mm4, %mm7 /* out0 */
+/* moved up from next block */
+ movq pic_offset(scratch3), %mm0
+ psraw $4, %mm7
+/* moved up from next block */
+ movq pic_offset(scratch5), %mm6
+ psubsw %mm4, %mm1 /* out14 ; free mm4 */
+ paddsw %mm3, %mm5 /* out2 */
+ psraw $4, %mm1
+ movq %mm7, (%esi) /* out0 ; free mm7 */
+ psraw $4, %mm5
+ movq %mm1, 8*14(%esi) /* out14 ; free mm1 */
+ psubsw %mm3, %mm2 /* out12 ; free mm3 */
+ movq %mm5, 8*2(%esi) /* out2 ; free mm5 */
+ psraw $4, %mm2
+/* moved up to the prev block */
+ movq pic_offset(scratch7), %mm4
+/* moved up to the prev block */
+ psraw $4, %mm0
+ movq %mm2, 8*12(%esi) /* out12 ; free mm2 */
+/* moved up to the prev block */
+ psraw $4, %mm6
+/* move back the data to its correct place
+* moved up to the prev block
+ * movq pic_offset(scratch3), %mm0
+ * movq pic_offset(scratch5), %mm6
+ * movq pic_offset(scratch7), %mm4
+ * psraw $4, %mm0
+ * psraw $4, %mm6
+*/
+ movq pic_offset(scratch1), %mm1
+ psraw $4, %mm4
+ movq %mm0, 8*3(%esi) /* out3 */
+ psraw $4, %mm1
+ movq %mm6, 8*5(%esi) /* out5 */
+ movq %mm4, 8*7(%esi) /* out7 */
+ movq %mm1, 8(%esi) /* out1 */
+ emms
+ popl %edi
+ popl %esi
+ popl %edx
+ popl %ecx
+ popl %ebx
+ movl %ebp,%esp
+ popl %ebp
+ ret
+.Lfe1:
+ .size gst_idct_mmx_idct,.Lfe1-gst_idct_mmx_idct
--- /dev/null
+.data
+ .align 4
+ .type rounder0,@object
+rounder0:
+ .long 65536
+ .long 65536
+ .size rounder0,8
+ .align 4
+ .type rounder4,@object
+rounder4:
+ .long 1024
+ .long 1024
+ .size rounder4,8
+ .align 4
+ .type rounder1,@object
+rounder1:
+ .long 3597
+ .long 3597
+ .size rounder1,8
+ .align 4
+ .type rounder7,@object
+rounder7:
+ .long 512
+ .long 512
+ .size rounder7,8
+ .align 4
+ .type rounder2,@object
+rounder2:
+ .long 2260
+ .long 2260
+ .size rounder2,8
+ .align 4
+ .type rounder6,@object
+rounder6:
+ .long 512
+ .long 512
+ .size rounder6,8
+ .align 4
+ .type rounder3,@object
+rounder3:
+ .long 1203
+ .long 1203
+ .size rounder3,8
+ .align 4
+ .type rounder5,@object
+rounder5:
+ .long 120
+ .long 120
+ .size rounder5,8
+ .align 2
+ .type _T1.46,@object
+_T1.46:
+ .value 13036
+ .value 13036
+ .value 13036
+ .value 13036
+ .align 2
+ .type _T2.47,@object
+_T2.47:
+ .value 27146
+ .value 27146
+ .value 27146
+ .value 27146
+ .align 2
+ .type _T3.48,@object
+_T3.48:
+ .value -21746
+ .value -21746
+ .value -21746
+ .value -21746
+ .align 2
+ .type _C4.49,@object
+_C4.49:
+ .value 23170
+ .value 23170
+ .value 23170
+ .value 23170
+ .local scratch0.50
+ .comm scratch0.50,8,4
+ .local scratch1.51
+ .comm scratch1.51,8,4
+ .align 2
+ .type table04.54,@object
+table04.54:
+ .value 16384
+ .value 21407
+ .value -16384
+ .value -21407
+ .value 16384
+ .value 8867
+ .value 16384
+ .value 8867
+ .value 22725
+ .value 19266
+ .value -22725
+ .value -12873
+ .value 12873
+ .value 4520
+ .value 19266
+ .value -4520
+ .value 16384
+ .value -8867
+ .value 16384
+ .value -8867
+ .value -16384
+ .value 21407
+ .value 16384
+ .value -21407
+ .value 12873
+ .value -22725
+ .value 19266
+ .value -22725
+ .value 4520
+ .value 19266
+ .value 4520
+ .value -12873
+ .align 2
+ .type table17.55,@object
+table17.55:
+ .value 22725
+ .value 29692
+ .value -22725
+ .value -29692
+ .value 22725
+ .value 12299
+ .value 22725
+ .value 12299
+ .value 31521
+ .value 26722
+ .value -31521
+ .value -17855
+ .value 17855
+ .value 6270
+ .value 26722
+ .value -6270
+ .value 22725
+ .value -12299
+ .value 22725
+ .value -12299
+ .value -22725
+ .value 29692
+ .value 22725
+ .value -29692
+ .value 17855
+ .value -31521
+ .value 26722
+ .value -31521
+ .value 6270
+ .value 26722
+ .value 6270
+ .value -17855
+ .align 2
+ .type table26.56,@object
+table26.56:
+ .value 21407
+ .value 27969
+ .value -21407
+ .value -27969
+ .value 21407
+ .value 11585
+ .value 21407
+ .value 11585
+ .value 29692
+ .value 25172
+ .value -29692
+ .value -16819
+ .value 16819
+ .value 5906
+ .value 25172
+ .value -5906
+ .value 21407
+ .value -11585
+ .value 21407
+ .value -11585
+ .value -21407
+ .value 27969
+ .value 21407
+ .value -27969
+ .value 16819
+ .value -29692
+ .value 25172
+ .value -29692
+ .value 5906
+ .value 25172
+ .value 5906
+ .value -16819
+ .align 2
+ .type table35.57,@object
+table35.57:
+ .value 19266
+ .value 25172
+ .value -19266
+ .value -25172
+ .value 19266
+ .value 10426
+ .value 19266
+ .value 10426
+ .value 26722
+ .value 22654
+ .value -26722
+ .value -15137
+ .value 15137
+ .value 5315
+ .value 22654
+ .value -5315
+ .value 19266
+ .value -10426
+ .value 19266
+ .value -10426
+ .value -19266
+ .value 25172
+ .value 19266
+ .value -25172
+ .value 15137
+ .value -26722
+ .value 22654
+ .value -26722
+ .value 5315
+ .value 22654
+ .value 5315
+ .value -15137
+.text
+ .align 4
+.globl gst_idct_sse_idct
+ .type gst_idct_sse_idct,@function
+gst_idct_sse_idct:
+ subl $8,%esp
+ pushl %ebp
+ pushl %edi
+ pushl %esi
+ pushl %ebx
+ call .L51
+.L51:
+ popl %ebx
+ addl $_GLOBAL_OFFSET_TABLE_+[.-.L51],%ebx
+ movl 28(%esp),%edx
+ leal table04.54@GOTOFF(%ebx),%eax
+ movq (%edx), %mm2
+ movq 8(%edx), %mm5
+ movq %mm2, %mm0
+ movq (%eax), %mm3
+ movq %mm5, %mm6
+ movq 8(%eax), %mm4
+ pmaddwd %mm0, %mm3
+ pshufw $78, %mm2, %mm2
+ leal rounder0@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ movq 64(%edx), %mm2
+ psrad $11, %mm0
+ movq 72(%edx), %mm5
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ movq %mm5, %mm6
+ packssdw %mm3, %mm4
+ movq %mm2, %mm0
+ movq %mm1, (%edx)
+ pshufw $177, %mm4, %mm4
+ movq (%eax), %mm3
+ movq %mm4, 8(%edx)
+ pmaddwd %mm0, %mm3
+ movq 8(%eax), %mm4
+ pshufw $78, %mm2, %mm2
+ leal rounder4@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ leal table17.55@GOTOFF(%ebx),%eax
+ movq 16(%edx), %mm2
+ psrad $11, %mm0
+ movq 24(%edx), %mm5
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ movq %mm5, %mm6
+ packssdw %mm3, %mm4
+ movq %mm2, %mm0
+ movq %mm1, 64(%edx)
+ pshufw $177, %mm4, %mm4
+ movq (%eax), %mm3
+ movq %mm4, 72(%edx)
+ pmaddwd %mm0, %mm3
+ movq 8(%eax), %mm4
+ pshufw $78, %mm2, %mm2
+ leal rounder1@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ movq 112(%edx), %mm2
+ psrad $11, %mm0
+ movq 120(%edx), %mm5
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ movq %mm5, %mm6
+ packssdw %mm3, %mm4
+ movq %mm2, %mm0
+ movq %mm1, 16(%edx)
+ pshufw $177, %mm4, %mm4
+ movq (%eax), %mm3
+ movq %mm4, 24(%edx)
+ pmaddwd %mm0, %mm3
+ movq 8(%eax), %mm4
+ pshufw $78, %mm2, %mm2
+ leal rounder7@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ leal table26.56@GOTOFF(%ebx),%eax
+ movq 32(%edx), %mm2
+ psrad $11, %mm0
+ movq 40(%edx), %mm5
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ movq %mm5, %mm6
+ packssdw %mm3, %mm4
+ movq %mm2, %mm0
+ movq %mm1, 112(%edx)
+ pshufw $177, %mm4, %mm4
+ movq (%eax), %mm3
+ movq %mm4, 120(%edx)
+ pmaddwd %mm0, %mm3
+ movq 8(%eax), %mm4
+ pshufw $78, %mm2, %mm2
+ leal rounder2@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ movq 96(%edx), %mm2
+ psrad $11, %mm0
+ movq 104(%edx), %mm5
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ movq %mm5, %mm6
+ packssdw %mm3, %mm4
+ movq %mm2, %mm0
+ movq %mm1, 32(%edx)
+ pshufw $177, %mm4, %mm4
+ movq (%eax), %mm3
+ movq %mm4, 40(%edx)
+ pmaddwd %mm0, %mm3
+ movq 8(%eax), %mm4
+ pshufw $78, %mm2, %mm2
+ leal rounder6@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ leal table35.57@GOTOFF(%ebx),%eax
+ movq 48(%edx), %mm2
+ psrad $11, %mm0
+ movq 56(%edx), %mm5
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ movq %mm5, %mm6
+ packssdw %mm3, %mm4
+ movq %mm2, %mm0
+ movq %mm1, 96(%edx)
+ pshufw $177, %mm4, %mm4
+ movq (%eax), %mm3
+ movq %mm4, 104(%edx)
+ pmaddwd %mm0, %mm3
+ movq 8(%eax), %mm4
+ pshufw $78, %mm2, %mm2
+ leal rounder3@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ movq 80(%edx), %mm2
+ psrad $11, %mm0
+ movq 88(%edx), %mm5
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ movq %mm5, %mm6
+ packssdw %mm3, %mm4
+ movq %mm2, %mm0
+ movq %mm1, 48(%edx)
+ pshufw $177, %mm4, %mm4
+ movq (%eax), %mm3
+ movq %mm4, 56(%edx)
+ pmaddwd %mm0, %mm3
+ movq 8(%eax), %mm4
+ pshufw $78, %mm2, %mm2
+ leal rounder5@GOTOFF(%ebx),%ecx
+ movq 16(%eax), %mm1
+ pmaddwd %mm2, %mm4
+ pmaddwd 32(%eax), %mm0
+ pshufw $78, %mm6, %mm6
+ movq 24(%eax), %mm7
+ pmaddwd %mm5, %mm1
+ paddd (%ecx), %mm3
+ pmaddwd %mm6, %mm7
+ pmaddwd 40(%eax), %mm2
+ paddd %mm4, %mm3
+ pmaddwd 48(%eax), %mm5
+ movq %mm3, %mm4
+ pmaddwd 56(%eax), %mm6
+ paddd %mm7, %mm1
+ paddd (%ecx), %mm0
+ psubd %mm1, %mm3
+ psrad $11, %mm3
+ paddd %mm4, %mm1
+ paddd %mm2, %mm0
+ psrad $11, %mm1
+ paddd %mm6, %mm5
+ movq %mm0, %mm4
+ paddd %mm5, %mm0
+ psubd %mm5, %mm4
+ psrad $11, %mm0
+ psrad $11, %mm4
+ packssdw %mm0, %mm1
+ packssdw %mm3, %mm4
+ movq %mm1, 80(%edx)
+ pshufw $177, %mm4, %mm4
+ movq %mm4, 88(%edx)
+ leal _T1.46@GOTOFF(%ebx),%edi
+ movq (%edi), %mm0
+ movq 16(%edx), %mm1
+ movq %mm0, %mm2
+ movq 112(%edx), %mm4
+ pmulhw %mm1, %mm0
+ leal _T3.48@GOTOFF(%ebx),%esi
+ movl %esi,16(%esp)
+ movq (%esi), %mm5
+ pmulhw %mm4, %mm2
+ movq 80(%edx), %mm6
+ movq %mm5, %mm7
+ movq 48(%edx), %mm3
+ psubsw %mm4, %mm0
+ leal _T2.47@GOTOFF(%ebx),%ecx
+ movq (%ecx), %mm4
+ pmulhw %mm3, %mm5
+ paddsw %mm2, %mm1
+ pmulhw %mm6, %mm7
+ movq %mm4, %mm2
+ paddsw %mm3, %mm5
+ pmulhw 32(%edx), %mm4
+ paddsw %mm6, %mm7
+ psubsw %mm6, %mm5
+ paddsw %mm3, %mm7
+ movq 96(%edx), %mm3
+ movq %mm0, %mm6
+ pmulhw %mm3, %mm2
+ psubsw %mm5, %mm0
+ psubsw %mm3, %mm4
+ paddsw %mm6, %mm5
+ leal scratch0.50@GOTOFF(%ebx),%esi
+ movl %esi,20(%esp)
+ movq %mm0, scratch0.50@GOTOFF(%ebx)
+ movq %mm1, %mm6
+ paddsw 32(%edx), %mm2
+ paddsw %mm7, %mm6
+ psubsw %mm7, %mm1
+ movq %mm1, %mm7
+ movq (%edx), %mm3
+ paddsw %mm5, %mm1
+ leal _C4.49@GOTOFF(%ebx),%eax
+ movq (%eax), %mm0
+ psubsw %mm5, %mm7
+ leal scratch1.51@GOTOFF(%ebx),%ebp
+ movq %mm6, scratch1.51@GOTOFF(%ebx)
+ pmulhw %mm0, %mm1
+ movq %mm4, %mm6
+ pmulhw %mm0, %mm7
+ movq 64(%edx), %mm5
+ movq %mm3, %mm0
+ psubsw %mm5, %mm3
+ paddsw %mm5, %mm0
+ paddsw %mm3, %mm4
+ movq %mm0, %mm5
+ psubsw %mm6, %mm3
+ paddsw %mm2, %mm5
+ paddsw %mm1, %mm1
+ psubsw %mm2, %mm0
+ paddsw %mm7, %mm7
+ movq %mm3, %mm2
+ movq %mm4, %mm6
+ paddsw %mm7, %mm3
+ psraw $6, %mm3
+ paddsw %mm1, %mm4
+ psraw $6, %mm4
+ psubsw %mm1, %mm6
+ movq (%ebp), %mm1
+ psubsw %mm7, %mm2
+ psraw $6, %mm6
+ movq %mm5, %mm7
+ movq %mm4, 16(%edx)
+ psraw $6, %mm2
+ movq %mm3, 32(%edx)
+ paddsw %mm1, %mm5
+ movq (%esi), %mm4
+ psubsw %mm1, %mm7
+ psraw $6, %mm5
+ movq %mm0, %mm3
+ movq %mm2, 80(%edx)
+ psubsw %mm4, %mm3
+ psraw $6, %mm7
+ paddsw %mm0, %mm4
+ movq %mm5, (%edx)
+ psraw $6, %mm3
+ movq %mm6, 96(%edx)
+ psraw $6, %mm4
+ movq %mm7, 112(%edx)
+ movq %mm3, 64(%edx)
+ movq %mm4, 48(%edx)
+ movq (%edi), %mm0
+ movq 24(%edx), %mm1
+ movq %mm0, %mm2
+ movq 120(%edx), %mm4
+ pmulhw %mm1, %mm0
+ movl 16(%esp),%esi
+ movq (%esi), %mm5
+ pmulhw %mm4, %mm2
+ movq 88(%edx), %mm6
+ movq %mm5, %mm7
+ movq 56(%edx), %mm3
+ psubsw %mm4, %mm0
+ movq (%ecx), %mm4
+ pmulhw %mm3, %mm5
+ paddsw %mm2, %mm1
+ pmulhw %mm6, %mm7
+ movq %mm4, %mm2
+ paddsw %mm3, %mm5
+ pmulhw 40(%edx), %mm4
+ paddsw %mm6, %mm7
+ psubsw %mm6, %mm5
+ paddsw %mm3, %mm7
+ movq 104(%edx), %mm3
+ movq %mm0, %mm6
+ pmulhw %mm3, %mm2
+ psubsw %mm5, %mm0
+ psubsw %mm3, %mm4
+ paddsw %mm6, %mm5
+ movq %mm0, scratch0.50@GOTOFF(%ebx)
+ movq %mm1, %mm6
+ paddsw 40(%edx), %mm2
+ paddsw %mm7, %mm6
+ psubsw %mm7, %mm1
+ movq %mm1, %mm7
+ movq 8(%edx), %mm3
+ paddsw %mm5, %mm1
+ movq (%eax), %mm0
+ psubsw %mm5, %mm7
+ movq %mm6, scratch1.51@GOTOFF(%ebx)
+ pmulhw %mm0, %mm1
+ movq %mm4, %mm6
+ pmulhw %mm0, %mm7
+ movq 72(%edx), %mm5
+ movq %mm3, %mm0
+ psubsw %mm5, %mm3
+ paddsw %mm5, %mm0
+ paddsw %mm3, %mm4
+ movq %mm0, %mm5
+ psubsw %mm6, %mm3
+ paddsw %mm2, %mm5
+ paddsw %mm1, %mm1
+ psubsw %mm2, %mm0
+ paddsw %mm7, %mm7
+ movq %mm3, %mm2
+ movq %mm4, %mm6
+ paddsw %mm7, %mm3
+ psraw $6, %mm3
+ paddsw %mm1, %mm4
+ psraw $6, %mm4
+ psubsw %mm1, %mm6
+ movq (%ebp), %mm1
+ psubsw %mm7, %mm2
+ psraw $6, %mm6
+ movq %mm5, %mm7
+ movq %mm4, 24(%edx)
+ psraw $6, %mm2
+ movq %mm3, 40(%edx)
+ paddsw %mm1, %mm5
+ movl 20(%esp),%esi
+ movq (%esi), %mm4
+ psubsw %mm1, %mm7
+ psraw $6, %mm5
+ movq %mm0, %mm3
+ movq %mm2, 88(%edx)
+ psubsw %mm4, %mm3
+ psraw $6, %mm7
+ paddsw %mm0, %mm4
+ movq %mm5, 8(%edx)
+ psraw $6, %mm3
+ movq %mm6, 104(%edx)
+ psraw $6, %mm4
+ movq %mm7, 120(%edx)
+ movq %mm3, 72(%edx)
+ movq %mm4, 56(%edx)
+ popl %ebx
+ popl %esi
+ popl %edi
+ popl %ebp
+ addl $8,%esp
+ ret
projects / platform / upstream / gstreamer.git / commitdiff