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FFmpeg/libavcodec/arm/vc1dsp_init_neon.c
Martin Storsjö d7320ca3ed arm: Avoid using .dn register aliases
clang now (in the upcoming 5.0 version) is capable of building our
arm assembly without relying on gas-preprocessor, although clang/LLVM
doesn't support .dn register aliases.

The VC1 MC assembly was only built and used if the chosen assembler
supported the .dn directives though. This was supported as long as
gas-preprocessor was used.

This means that VC1 decoding got a speed regression on clang 5.0,
unless the user manually chose using gas-preprocessor again.

By avoiding using the .dn register aliases, we can build the VC1 MC
assembly with the latest clang version.

Support for the .dn/.qn directives in clang/LLVM isn't actively planned,
see https://bugs.llvm.org/show_bug.cgi?id=18199.

This partially reverts 896a5bff64.

Signed-off-by: Martin Storsjö <martin@martin.st>
2017-05-15 09:52:18 +03:00

115 lines
5.8 KiB
C

/*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavcodec/vc1dsp.h"
#include "vc1dsp.h"
void ff_vc1_inv_trans_8x8_neon(int16_t *block);
void ff_vc1_inv_trans_4x8_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_vc1_inv_trans_8x4_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_vc1_inv_trans_4x4_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_vc1_inv_trans_8x8_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_vc1_inv_trans_4x8_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_vc1_inv_trans_8x4_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_vc1_inv_trans_4x4_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
void ff_put_pixels8x8_neon(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int rnd);
void ff_put_vc1_mspel_mc10_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc20_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc30_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc01_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc02_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc03_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc11_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc12_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc13_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc21_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc22_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc23_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc31_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc32_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_mspel_mc33_neon(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, int rnd);
void ff_put_vc1_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
int h, int x, int y);
void ff_avg_vc1_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
int h, int x, int y);
void ff_put_vc1_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
int h, int x, int y);
void ff_avg_vc1_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
int h, int x, int y);
av_cold void ff_vc1dsp_init_neon(VC1DSPContext *dsp)
{
dsp->vc1_inv_trans_8x8 = ff_vc1_inv_trans_8x8_neon;
dsp->vc1_inv_trans_4x8 = ff_vc1_inv_trans_4x8_neon;
dsp->vc1_inv_trans_8x4 = ff_vc1_inv_trans_8x4_neon;
dsp->vc1_inv_trans_4x4 = ff_vc1_inv_trans_4x4_neon;
dsp->vc1_inv_trans_8x8_dc = ff_vc1_inv_trans_8x8_dc_neon;
dsp->vc1_inv_trans_4x8_dc = ff_vc1_inv_trans_4x8_dc_neon;
dsp->vc1_inv_trans_8x4_dc = ff_vc1_inv_trans_8x4_dc_neon;
dsp->vc1_inv_trans_4x4_dc = ff_vc1_inv_trans_4x4_dc_neon;
dsp->put_vc1_mspel_pixels_tab[ 0] = ff_put_pixels8x8_neon;
dsp->put_vc1_mspel_pixels_tab[ 1] = ff_put_vc1_mspel_mc10_neon;
dsp->put_vc1_mspel_pixels_tab[ 2] = ff_put_vc1_mspel_mc20_neon;
dsp->put_vc1_mspel_pixels_tab[ 3] = ff_put_vc1_mspel_mc30_neon;
dsp->put_vc1_mspel_pixels_tab[ 4] = ff_put_vc1_mspel_mc01_neon;
dsp->put_vc1_mspel_pixels_tab[ 5] = ff_put_vc1_mspel_mc11_neon;
dsp->put_vc1_mspel_pixels_tab[ 6] = ff_put_vc1_mspel_mc21_neon;
dsp->put_vc1_mspel_pixels_tab[ 7] = ff_put_vc1_mspel_mc31_neon;
dsp->put_vc1_mspel_pixels_tab[ 8] = ff_put_vc1_mspel_mc02_neon;
dsp->put_vc1_mspel_pixels_tab[ 9] = ff_put_vc1_mspel_mc12_neon;
dsp->put_vc1_mspel_pixels_tab[10] = ff_put_vc1_mspel_mc22_neon;
dsp->put_vc1_mspel_pixels_tab[11] = ff_put_vc1_mspel_mc32_neon;
dsp->put_vc1_mspel_pixels_tab[12] = ff_put_vc1_mspel_mc03_neon;
dsp->put_vc1_mspel_pixels_tab[13] = ff_put_vc1_mspel_mc13_neon;
dsp->put_vc1_mspel_pixels_tab[14] = ff_put_vc1_mspel_mc23_neon;
dsp->put_vc1_mspel_pixels_tab[15] = ff_put_vc1_mspel_mc33_neon;
dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = ff_put_vc1_chroma_mc8_neon;
dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = ff_avg_vc1_chroma_mc8_neon;
dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = ff_put_vc1_chroma_mc4_neon;
dsp->avg_no_rnd_vc1_chroma_pixels_tab[1] = ff_avg_vc1_chroma_mc4_neon;
}