Commit d4a730bb authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

NEON accelerated I420/YV12 -> YUYV/UYVY chroma conversion

parent 914d6544
......@@ -83,3 +83,13 @@ libvlc_LTLIBRARIES += \
libi420_rgb_plugin.la \
libgrey_yuv_plugin.la \
$(NULL)
libchroma_neon_plugin_la_SOURCES = \
i420_yuyv_neon.S \
neon.c
libchroma_neon_plugin_la_CFLAGS = $(AM_CFLAGS)
libchroma_neon_plugin_la_LIBADD = $(AM_LIBADD)
libchroma_neon_plugin_la_DEPENDENCIES =
if HAVE_NEON
libvlc_LTLIBRARIES += libchroma_neon_plugin.la
endif
@****************************************************************************
@ i420_yuyv_neon.S : ARM NEONv1 I420 to YUYV chroma conversion
@*****************************************************************************
@ Copyright (C) 2009 Rémi Denis-Courmont
@
@ This program 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.
@
@ This program 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
@****************************************************************************/
.fpu neon
.text
#define O1 r0
#define O2 r1
#define PITCH r2
#define HEIGHT r3
#define Y1 r4
#define Y2 r5
#define U r6
#define V r7
#define END_O1 r8
.align
.global i420_uyvy_neon
.type i420_uyvy_neon, %function
i420_uyvy_neon:
push {r4-r8}
add r8, pc, #(indexes+64-.-8)
b i420_pack_neon
.global i420_yuyv_neon
.type i420_yuyv_neon, %function
i420_yuyv_neon:
push {r4-r8}
add r8, pc, #(indexes-.-8)
.hidden i420_pack_neon
i420_pack_neon:
vld1.u8 {d24-d27}, [r8]!
ldmia r1, {r4, r6, r7}
vld1.u8 {d28-d31}, [r8]
add O2, O1, PITCH, lsl #1
add Y2, Y1, PITCH
1:
mov END_O1, O2
2:
vld1.u8 {d0-d1}, [Y1,:128]!
vld1.u8 {d2}, [U,:64]!
vld1.u8 {d3}, [V,:64]!
vld1.u8 {d4-d5}, [Y2,:128]!
vtbl.u8 d16, {d0-d3}, d24
vtbl.u8 d17, {d0-d3}, d25
vtbl.u8 d18, {d0-d3}, d26
vtbl.u8 d19, {d0-d3}, d27
vtbl.u8 d20, {d2-d5}, d28
vtbl.u8 d21, {d2-d5}, d29
vtbl.u8 d22, {d2-d5}, d30
vtbl.u8 d23, {d2-d5}, d31
vst1.u8 {d16-d19}, [O1,:128]!
vst1.u8 {d20-d23}, [O2,:128]!
cmp O1, END_O1
bne 2b
sub HEIGHT, #2
mov O1, O2
add O2, PITCH, lsl #1
mov Y1, Y2
add Y2, PITCH
cmp HEIGHT, #0
bne 1b
pop {r4-r8}
bx lr
.hidden indexes
indexes:
@ YUYV1
.byte 0x00, 0x10, 0x01, 0x18, 0x02, 0x11, 0x03, 0x19
.byte 0x04, 0x12, 0x05, 0x1A, 0x06, 0x13, 0x07, 0x1B
.byte 0x08, 0x14, 0x09, 0x1C, 0x0A, 0x15, 0x0B, 0x1D
.byte 0x0C, 0x16, 0x0D, 0x1E, 0x0E, 0x17, 0x0F, 0x1F
@ YUYV2
.byte 0x10, 0x00, 0x11, 0x08, 0x12, 0x01, 0x13, 0x09
.byte 0x14, 0x02, 0x15, 0x0A, 0x16, 0x03, 0x17, 0x0B
.byte 0x18, 0x04, 0x19, 0x0C, 0x1A, 0x05, 0x1B, 0x0D
.byte 0x1C, 0x06, 0x1D, 0x0E, 0x1E, 0x07, 0x1F, 0x0F
@ UYVY1
.byte 0x10, 0x00, 0x18, 0x01, 0x11, 0x02, 0x19, 0x03
.byte 0x12, 0x04, 0x1A, 0x05, 0x13, 0x06, 0x1B, 0x07
.byte 0x14, 0x08, 0x1C, 0x09, 0x15, 0x0A, 0x1D, 0x0B
.byte 0x16, 0x0C, 0x1E, 0x0D, 0x17, 0x0E, 0x1F, 0x0F
@ UYVY2
.byte 0x00, 0x10, 0x08, 0x11, 0x01, 0x12, 0x09, 0x13
.byte 0x02, 0x14, 0x0A, 0x15, 0x03, 0x16, 0x0B, 0x17
.byte 0x04, 0x18, 0x0C, 0x19, 0x05, 0x1A, 0x0D, 0x1B
.byte 0x06, 0x1C, 0x0E, 0x1D, 0x07, 0x1E, 0x0F, 0x1F
/*****************************************************************************
* neon.c : ARM NEONv1 chroma conversion module for VLC
*****************************************************************************
* Copyright (C) 2009 Rémi Denis-Courmont
*
* This program 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.
*
* This program 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_filter.h>
static int Open (vlc_object_t *);
vlc_module_begin ()
set_description (N_("ARM NEON video chroma conversions"))
set_capability ("video filter2", 250)
set_callbacks (Open, NULL)
add_requirement (NEON)
vlc_module_end ()
void i420_yuyv_neon (uint8_t *out, const uint8_t **in,
uintptr_t pitch, uintptr_t height);
static void I420_YUYV (filter_t *filter, picture_t *src, picture_t *dst)
{
uint8_t *out = dst->p->p_pixels;
const uint8_t *yuv[3] = { src->Y_PIXELS, src->U_PIXELS, src->V_PIXELS, };
size_t pitch = (filter->fmt_in.video.i_width + 15) & ~15;
size_t height = filter->fmt_in.video.i_height;
i420_yuyv_neon (out, yuv, pitch, height);
}
void i420_uyvy_neon (uint8_t *out, const uint8_t **in,
uintptr_t pitch, uintptr_t height);
static void I420_UYVY (filter_t *filter, picture_t *src, picture_t *dst)
{
uint8_t *out = dst->p->p_pixels;
const uint8_t *yuv[3] = { src->Y_PIXELS, src->U_PIXELS, src->V_PIXELS, };
size_t pitch = (filter->fmt_in.video.i_width + 15) & ~15;
size_t height = filter->fmt_in.video.i_height;
i420_yuyv_neon (out, yuv, pitch, height);
}
VIDEO_FILTER_WRAPPER (I420_YUYV)
VIDEO_FILTER_WRAPPER (I420_UYVY)
static int Open (vlc_object_t *obj)
{
filter_t *filter = (filter_t *)obj;
if (((filter->fmt_in.video.i_width | filter->fmt_in.video.i_height) & 1)
|| (filter->fmt_in.video.i_width != filter->fmt_out.video.i_width)
|| (filter->fmt_in.video.i_height != filter->fmt_out.video.i_height))
return VLC_EGENERIC;
switch (filter->fmt_in.video.i_chroma)
{
case VLC_CODEC_YV12:
case VLC_CODEC_I420:
switch (filter->fmt_out.video.i_chroma)
{
case VLC_CODEC_YUYV:
filter->pf_video_filter = I420_YUYV_Filter;
break;
case VLC_CODEC_UYVY:
filter->pf_video_filter = I420_UYVY_Filter;
break;
default:
return VLC_EGENERIC;
}
break;
default:
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
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