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License change and cpu detection patch by (James Morrison <ja2morri at csclub dot uwaterloo dot ca>)

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Originally committed as revision 3058 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
James Morrison 2004-04-24 15:23:50 +00:00 committed by Michael Niedermayer
parent bb476ff367
commit 0f12310fe2
1 changed files with 104 additions and 46 deletions
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150
libavcodec/sparc/dsputil_vis.c
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@ -1,28 +1,27 @@
/* /*
* motion_comp_vis.c * dsputil_vis.c
* Copyright (C) 2003 David S. Miller <davem@redhat.com> * Copyright (C) 2003 David S. Miller <davem@redhat.com>
* *
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder. * This file is part of ffmpeg, a free MPEG-4 video stream decoder.
* See http://libmpeg2.sourceforge.net/ for updates. * See http://ffmpeg.sourceforge.net/ for updates.
* *
* mpeg2dec is free software; you can redistribute it and/or modify * ffmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version. * (at your option) any later version.
* *
* mpeg2dec is distributed in the hope that it will be useful, * ffmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of * but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details. * GNU General Public License for more details.
* *
* You should have received a copy of the GNU General Public License * You should have received a copy of the Lesser GNU General Public License
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/ */
/* The *no_round* functions have been added by James A. Morrison, 2003. /* The *no_round* functions have been added by James A. Morrison, 2003,2004.
The vis code from libmpeg2 was adapted for ffmpeg by James A. Morrison. The vis code from libmpeg2 was adapted for ffmpeg by James A. Morrison.
Note: This code is GPL'd and may only be distributed in a GPL'd package.
*/ */
#include "config.h" #include "config.h"
@ -30,6 +29,8 @@
#ifdef ARCH_SPARC #ifdef ARCH_SPARC
#include <inttypes.h> #include <inttypes.h>
#include <signal.h>
#include <setjmp.h>
#include "../dsputil.h" #include "../dsputil.h"
@ -4000,50 +4001,107 @@ void get_pixels_vis(uint8_t *restrict dest, const uint8_t *_ref, int stride)
} }
} }
static sigjmp_buf jmpbuf;
static volatile sig_atomic_t canjump = 0;
static void sigill_handler (int sig)
{
if (!canjump) {
signal (sig, SIG_DFL);
raise (sig);
}
canjump = 0;
siglongjmp (jmpbuf, 1);
}
#define ACCEL_SPARC_VIS 1
#define ACCEL_SPARC_VIS2 2
static int vis_level ()
{
int accel = 0;
signal (SIGILL, sigill_handler);
if (sigsetjmp (jmpbuf, 1)) {
signal (SIGILL, SIG_DFL);
return accel;
}
canjump = 1;
/* pdist %f0, %f0, %f0 */
__asm__ __volatile__(".word\t0x81b007c0");
canjump = 0;
accel |= ACCEL_SPARC_VIS;
if (sigsetjmp (jmpbuf, 1)) {
signal (SIGILL, SIG_DFL);
return accel;
}
canjump = 1;
/* edge8n %g0, %g0, %g0 */
__asm__ __volatile__(".word\t0x81b00020");
canjump = 0;
accel |= ACCEL_SPARC_VIS2;
signal (SIGILL, SIG_DFL);
return accel;
}
/* libavcodec initialization code */ /* libavcodec initialization code */
void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx) void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx)
{ {
/* VIS specific optimisations */ /* VIS specific optimisations */
c->get_pixels = get_pixels_vis; int accel = vis_level ();
c->put_pixels_tab[0][0] = MC_put_o_16_vis;
c->put_pixels_tab[0][1] = MC_put_x_16_vis; if (accel & ACCEL_SPARC_VIS) {
c->put_pixels_tab[0][2] = MC_put_y_16_vis; c->get_pixels = get_pixels_vis;
c->put_pixels_tab[0][3] = MC_put_xy_16_vis; c->put_pixels_tab[0][0] = MC_put_o_16_vis;
c->put_pixels_tab[0][1] = MC_put_x_16_vis;
c->put_pixels_tab[0][2] = MC_put_y_16_vis;
c->put_pixels_tab[0][3] = MC_put_xy_16_vis;
c->put_pixels_tab[1][0] = MC_put_o_8_vis;
c->put_pixels_tab[1][1] = MC_put_x_8_vis;
c->put_pixels_tab[1][2] = MC_put_y_8_vis;
c->put_pixels_tab[1][3] = MC_put_xy_8_vis;
c->avg_pixels_tab[0][0] = MC_avg_o_16_vis;
c->avg_pixels_tab[0][1] = MC_avg_x_16_vis;
c->avg_pixels_tab[0][2] = MC_avg_y_16_vis;
c->avg_pixels_tab[0][3] = MC_avg_xy_16_vis;
c->put_pixels_tab[1][0] = MC_put_o_8_vis; c->avg_pixels_tab[1][0] = MC_avg_o_8_vis;
c->put_pixels_tab[1][1] = MC_put_x_8_vis; c->avg_pixels_tab[1][1] = MC_avg_x_8_vis;
c->put_pixels_tab[1][2] = MC_put_y_8_vis; c->avg_pixels_tab[1][2] = MC_avg_y_8_vis;
c->put_pixels_tab[1][3] = MC_put_xy_8_vis; c->avg_pixels_tab[1][3] = MC_avg_xy_8_vis;
c->avg_pixels_tab[0][0] = MC_avg_o_16_vis; c->put_no_rnd_pixels_tab[0][0] = MC_put_no_round_o_16_vis;
c->avg_pixels_tab[0][1] = MC_avg_x_16_vis; c->put_no_rnd_pixels_tab[0][1] = MC_put_no_round_x_16_vis;
c->avg_pixels_tab[0][2] = MC_avg_y_16_vis; c->put_no_rnd_pixels_tab[0][2] = MC_put_no_round_y_16_vis;
c->avg_pixels_tab[0][3] = MC_avg_xy_16_vis; c->put_no_rnd_pixels_tab[0][3] = MC_put_no_round_xy_16_vis;
c->put_no_rnd_pixels_tab[1][0] = MC_put_no_round_o_8_vis;
c->put_no_rnd_pixels_tab[1][1] = MC_put_no_round_x_8_vis;
c->put_no_rnd_pixels_tab[1][2] = MC_put_no_round_y_8_vis;
c->put_no_rnd_pixels_tab[1][3] = MC_put_no_round_xy_8_vis;
c->avg_pixels_tab[1][0] = MC_avg_o_8_vis; c->avg_no_rnd_pixels_tab[0][0] = MC_avg_no_round_o_16_vis;
c->avg_pixels_tab[1][1] = MC_avg_x_8_vis; c->avg_no_rnd_pixels_tab[0][1] = MC_avg_no_round_x_16_vis;
c->avg_pixels_tab[1][2] = MC_avg_y_8_vis; c->avg_no_rnd_pixels_tab[0][2] = MC_avg_no_round_y_16_vis;
c->avg_pixels_tab[1][3] = MC_avg_xy_8_vis; c->avg_no_rnd_pixels_tab[0][3] = MC_avg_no_round_xy_16_vis;
c->put_no_rnd_pixels_tab[0][0] = MC_put_no_round_o_16_vis; c->avg_no_rnd_pixels_tab[1][0] = MC_avg_no_round_o_8_vis;
c->put_no_rnd_pixels_tab[0][1] = MC_put_no_round_x_16_vis; c->avg_no_rnd_pixels_tab[1][1] = MC_avg_no_round_x_8_vis;
c->put_no_rnd_pixels_tab[0][2] = MC_put_no_round_y_16_vis; c->avg_no_rnd_pixels_tab[1][2] = MC_avg_no_round_y_8_vis;
c->put_no_rnd_pixels_tab[0][3] = MC_put_no_round_xy_16_vis; c->avg_no_rnd_pixels_tab[1][3] = MC_avg_no_round_xy_8_vis;
}
c->put_no_rnd_pixels_tab[1][0] = MC_put_no_round_o_8_vis;
c->put_no_rnd_pixels_tab[1][1] = MC_put_no_round_x_8_vis;
c->put_no_rnd_pixels_tab[1][2] = MC_put_no_round_y_8_vis;
c->put_no_rnd_pixels_tab[1][3] = MC_put_no_round_xy_8_vis;
c->avg_no_rnd_pixels_tab[0][0] = MC_avg_no_round_o_16_vis;
c->avg_no_rnd_pixels_tab[0][1] = MC_avg_no_round_x_16_vis;
c->avg_no_rnd_pixels_tab[0][2] = MC_avg_no_round_y_16_vis;
c->avg_no_rnd_pixels_tab[0][3] = MC_avg_no_round_xy_16_vis;
c->avg_no_rnd_pixels_tab[1][0] = MC_avg_no_round_o_8_vis;
c->avg_no_rnd_pixels_tab[1][1] = MC_avg_no_round_x_8_vis;
c->avg_no_rnd_pixels_tab[1][2] = MC_avg_no_round_y_8_vis;
c->avg_no_rnd_pixels_tab[1][3] = MC_avg_no_round_xy_8_vis;
} }
#endif /* !(ARCH_SPARC) */ #endif /* !(ARCH_SPARC) */