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Initial commit of work-in-progress MPEG video player plugin based on libmpeg2. Works on all targets with colour LCDs, but most optimised for the ipod Color/Photo and Nano. It currently only plays raw MPEG-1 or MPEG-2 video streams (no audio). Also adds a new lcd_yuv_blit() function to the plugin API - currently only implemented for the ipod Color/Photo and Nano.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10479 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2006-08-07 22:11:07 +00:00
parent 754e173c25
commit c9d66562af
27 changed files with 6457 additions and 2 deletions
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129
apps/plugins/mpegplayer/cpu_state.c Normal file
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/*
* cpu_state.c
* Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
* See http://libmpeg2.sourceforge.net/ for updates.
*
* mpeg2dec is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpeg2dec 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "plugin.h"
#include "mpeg2dec_config.h"
#include "mpeg2.h"
#include "attributes.h"
#include "mpeg2_internal.h"
#ifdef ARCH_X86
#include "mmx.h"
#endif
void (* mpeg2_cpu_state_save) (cpu_state_t * state) = NULL;
void (* mpeg2_cpu_state_restore) (cpu_state_t * state) = NULL;
#ifdef ARCH_X86
static void state_restore_mmx (cpu_state_t * state)
{
emms ();
}
#endif
#ifdef ARCH_PPC
#ifdef HAVE_ALTIVEC_H /* gnu */
#define LI(a,b) "li " #a "," #b "\n\t"
#define STVX0(a,b,c) "stvx " #a ",0," #c "\n\t"
#define STVX(a,b,c) "stvx " #a "," #b "," #c "\n\t"
#define LVX0(a,b,c) "lvx " #a ",0," #c "\n\t"
#define LVX(a,b,c) "lvx " #a "," #b "," #c "\n\t"
#else /* apple */
#define LI(a,b) "li r" #a "," #b "\n\t"
#define STVX0(a,b,c) "stvx v" #a ",0,r" #c "\n\t"
#define STVX(a,b,c) "stvx v" #a ",r" #b ",r" #c "\n\t"
#define LVX0(a,b,c) "lvx v" #a ",0,r" #c "\n\t"
#define LVX(a,b,c) "lvx v" #a ",r" #b ",r" #c "\n\t"
#endif
static void state_save_altivec (cpu_state_t * state)
{
asm (LI (9, 16)
STVX0 (20, 0, 3)
LI (11, 32)
STVX (21, 9, 3)
LI (9, 48)
STVX (22, 11, 3)
LI (11, 64)
STVX (23, 9, 3)
LI (9, 80)
STVX (24, 11, 3)
LI (11, 96)
STVX (25, 9, 3)
LI (9, 112)
STVX (26, 11, 3)
LI (11, 128)
STVX (27, 9, 3)
LI (9, 144)
STVX (28, 11, 3)
LI (11, 160)
STVX (29, 9, 3)
LI (9, 176)
STVX (30, 11, 3)
STVX (31, 9, 3));
}
static void state_restore_altivec (cpu_state_t * state)
{
asm (LI (9, 16)
LVX0 (20, 0, 3)
LI (11, 32)
LVX (21, 9, 3)
LI (9, 48)
LVX (22, 11, 3)
LI (11, 64)
LVX (23, 9, 3)
LI (9, 80)
LVX (24, 11, 3)
LI (11, 96)
LVX (25, 9, 3)
LI (9, 112)
LVX (26, 11, 3)
LI (11, 128)
LVX (27, 9, 3)
LI (9, 144)
LVX (28, 11, 3)
LI (11, 160)
LVX (29, 9, 3)
LI (9, 176)
LVX (30, 11, 3)
LVX (31, 9, 3));
}
#endif
void mpeg2_cpu_state_init (uint32_t accel)
{
(void)accel;
#ifdef ARCH_X86
if (accel & MPEG2_ACCEL_X86_MMX) {
mpeg2_cpu_state_restore = state_restore_mmx;
}
#endif
#ifdef ARCH_PPC
if (accel & MPEG2_ACCEL_PPC_ALTIVEC) {
mpeg2_cpu_state_save = state_save_altivec;
mpeg2_cpu_state_restore = state_restore_altivec;
}
#endif
}