[FFmpeg-devel] [PATCH 11/11] avcodec/mips: loongson optimize idctdsp with mmi v2
周晓勇
ipfootball at 126.com
Tue May 17 13:16:42 CEST 2016
avcodec/mips/idctdsp_mmi: Version 2 of the optimizations for loongson mmi
1. no longer use the register names directly and optimized code format
2. to be compatible with O32, specify type of address variable with mips_reg and handle the address variable with PTR_ operator
在 2016-05-13 18:07:59，"周晓勇" <ipfootball at 126.com> 写道：
From 37d9b61f529064a6a78c99f86ff371fefa2b357a Mon Sep 17 00:00:00 2001
From: ZhouXiaoyong <zhouxiaoyong at loongson.cn>
Date: Fri, 13 May 2016 16:51:14 +0800
Subject: [PATCH 11/11] avcodec/mips: loongson optimize idctdsp with mmi v2
---
libavcodec/mips/idctdsp_mmi.c | 290 ++++++++++++++++++++++--------------------
1 file changed, 154 insertions(+), 136 deletions(-)
diff --git a/libavcodec/mips/idctdsp_mmi.c b/libavcodec/mips/idctdsp_mmi.c
index 25476f3..24beb62 100644
--- a/libavcodec/mips/idctdsp_mmi.c
+++ b/libavcodec/mips/idctdsp_mmi.c
@@ -23,63 +23,75 @@
#include "idctdsp_mips.h"
#include "constants.h"
+#include "libavutil/mips/asmdefs.h"
void ff_put_pixels_clamped_mmi(const int16_t *block,
uint8_t *av_restrict pixels, ptrdiff_t line_size)
{
- const int16_t *p;
- uint8_t *pix;
-
- p = block;
- pix = pixels;
+ double ftmp[8];
+ mips_reg addr[1];
__asm__ volatile (
- "ldc1 $f0, 0+%3 \r\n"
- "ldc1 $f2, 8+%3 \r\n"
- "ldc1 $f4, 16+%3 \r\n"
- "ldc1 $f6, 24+%3 \r\n"
- "ldc1 $f8, 32+%3 \r\n"
- "ldc1 $f10, 40+%3 \r\n"
- "ldc1 $f12, 48+%3 \r\n"
- "ldc1 $f14, 56+%3 \r\n"
- "dadd $10, %0, %1 \r\n"
- "packushb $f0, $f0, $f2 \r\n"
- "packushb $f4, $f4, $f6 \r\n"
- "packushb $f8, $f8, $f10 \r\n"
- "packushb $f12, $f12, $f14 \r\n"
- "sdc1 $f0, 0(%0) \r\n"
- "sdc1 $f4, 0($10) \r\n"
- "gssdxc1 $f8, 0($10, %1) \r\n"
- "gssdxc1 $f12, 0(%0, %2) \r\n"
- ::"r"(pix),"r"((int)line_size),
- "r"((int)line_size*3),"m"(*p)
- : "$10","memory"
+ "ldc1 %[ftmp0], 0x00(%[block]) \n\t"
+ "ldc1 %[ftmp1], 0x08(%[block]) \n\t"
+ "ldc1 %[ftmp2], 0x10(%[block]) \n\t"
+ "ldc1 %[ftmp3], 0x18(%[block]) \n\t"
+ "ldc1 %[ftmp4], 0x20(%[block]) \n\t"
+ "ldc1 %[ftmp5], 0x28(%[block]) \n\t"
+ "ldc1 %[ftmp6], 0x30(%[block]) \n\t"
+ "ldc1 %[ftmp7], 0x38(%[block]) \n\t"
+ PTR_ADDU "%[addr0], %[pixels], %[line_size] \n\t"
+ "packushb %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
+ "packushb %[ftmp2], %[ftmp2], %[ftmp3] \n\t"
+ "packushb %[ftmp4], %[ftmp4], %[ftmp5] \n\t"
+ "packushb %[ftmp6], %[ftmp6], %[ftmp7] \n\t"
+ "sdc1 %[ftmp0], 0x00(%[pixels]) \n\t"
+ "sdc1 %[ftmp2], 0x00(%[addr0]) \n\t"
+ "gssdxc1 %[ftmp4], 0x00(%[addr0], %[line_size]) \n\t"
+ "gssdxc1 %[ftmp6], 0x00(%[pixels], %[line_sizex3]) \n\t"
+ : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
+ [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
+ [ftmp4]"=&f"(ftmp[4]), [ftmp5]"=&f"(ftmp[5]),
+ [ftmp6]"=&f"(ftmp[6]), [ftmp7]"=&f"(ftmp[7]),
+ [addr0]"=&r"(addr[0]),
+ [pixels]"+&r"(pixels)
+ : [line_size]"r"((mips_reg)line_size),
+ [line_sizex3]"r"((mips_reg)(line_size*3)),
+ [block]"r"(block)
+ : "memory"
);
- pix += line_size*4;
- p += 32;
+ pixels += line_size*4;
+ block += 32;
__asm__ volatile (
- "ldc1 $f0, 0+%3 \r\n"
- "ldc1 $f2, 8+%3 \r\n"
- "ldc1 $f4, 16+%3 \r\n"
- "ldc1 $f6, 24+%3 \r\n"
- "ldc1 $f8, 32+%3 \r\n"
- "ldc1 $f10, 40+%3 \r\n"
- "ldc1 $f12, 48+%3 \r\n"
- "ldc1 $f14, 56+%3 \r\n"
- "dadd $10, %0, %1 \r\n"
- "packushb $f0, $f0, $f2 \r\n"
- "packushb $f4, $f4, $f6 \r\n"
- "packushb $f8, $f8, $f10 \r\n"
- "packushb $f12, $f12, $f14 \r\n"
- "sdc1 $f0, 0(%0) \r\n"
- "sdc1 $f4, 0($10) \r\n"
- "gssdxc1 $f8, 0($10, %1) \r\n"
- "gssdxc1 $f12, 0(%0, %2) \r\n"
- ::"r"(pix),"r"((int)line_size),
- "r"((int)line_size*3),"m"(*p)
- : "$10","memory"
+ "ldc1 %[ftmp0], 0x00(%[block]) \n\t"
+ "ldc1 %[ftmp1], 0x08(%[block]) \n\t"
+ "ldc1 %[ftmp2], 0x10(%[block]) \n\t"
+ "ldc1 %[ftmp3], 0x18(%[block]) \n\t"
+ "ldc1 %[ftmp4], 0x20(%[block]) \n\t"
+ "ldc1 %[ftmp5], 0x28(%[block]) \n\t"
+ "ldc1 %[ftmp6], 0x30(%[block]) \n\t"
+ "ldc1 %[ftmp7], 0x38(%[block]) \n\t"
+ PTR_ADDU "%[addr0], %[pixels], %[line_size] \n\t"
+ "packushb %[ftmp0], %[ftmp0], %[ftmp1] \n\t"
+ "packushb %[ftmp2], %[ftmp2], %[ftmp3] \n\t"
+ "packushb %[ftmp4], %[ftmp4], %[ftmp5] \n\t"
+ "packushb %[ftmp6], %[ftmp6], %[ftmp7] \n\t"
+ "sdc1 %[ftmp0], 0x00(%[pixels]) \n\t"
+ "sdc1 %[ftmp2], 0x00(%[addr0]) \n\t"
+ "gssdxc1 %[ftmp4], 0x00(%[addr0], %[line_size]) \n\t"
+ "gssdxc1 %[ftmp6], 0x00(%[pixels], %[line_sizex3]) \n\t"
+ : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
+ [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
+ [ftmp4]"=&f"(ftmp[4]), [ftmp5]"=&f"(ftmp[5]),
+ [ftmp6]"=&f"(ftmp[6]), [ftmp7]"=&f"(ftmp[7]),
+ [addr0]"=&r"(addr[0]),
+ [pixels]"+&r"(pixels)
+ : [line_size]"r"((mips_reg)line_size),
+ [line_sizex3]"r"((mips_reg)(line_size*3)),
+ [block]"r"(block)
+ : "memory"
);
}
@@ -87,104 +99,110 @@ void ff_put_signed_pixels_clamped_mmi(const int16_t *block,
uint8_t *av_restrict pixels, ptrdiff_t line_size)
{
int64_t line_skip = line_size;
- int64_t line_skip3;
+ int64_t line_skip3 = 0;
+ double ftmp[5];
+ mips_reg addr[1];
__asm__ volatile (
- "dmtc1 %4, $f0 \n\t"
- "daddu %1, %3, %3 \n\t"
- "ldc1 $f2, 0(%2) \n\t"
- "ldc1 $f10, 8(%2) \n\t"
- "packsshb $f2, $f2, $f10 \n\t"
- "ldc1 $f4, 16(%2) \n\t"
- "ldc1 $f10, 24(%2) \n\t"
- "packsshb $f4, $f4, $f10 \n\t"
- "ldc1 $f6, 32(%2) \n\t"
- "ldc1 $f10, 40(%2) \n\t"
- "packsshb $f6, $f6, $f10 \n\t"
- "ldc1 $f8, 48(%2) \n\t"
- "ldc1 $f10, 56(%2) \n\t"
- "packsshb $f8, $f8, $f10 \n\t"
- "paddb $f2, $f2, $f0 \n\t"
- "paddb $f4, $f4, $f0 \n\t"
- "paddb $f6, $f6, $f0 \n\t"
- "paddb $f8, $f8, $f0 \n\t"
- "sdc1 $f2, 0(%0) \n\t"
- "gssdxc1 $f4, 0(%0, %3) \n\t"
- "gssdxc1 $f6, 0(%0, %1) \n\t"
- "daddu %1, %1, %3 \n\t"
- "gssdxc1 $f8, 0(%0, %1) \n\t"
- "daddu $10, %1, %3 \n\t"
- "daddu %0, %0, $10 \n\t"
- "ldc1 $f2, 64(%2) \n\t"
- "ldc1 $f10, 8+64(%2) \n\t"
- "packsshb $f2, $f2, $f10 \n\t"
- "ldc1 $f4, 16+64(%2) \n\t"
- "ldc1 $f10, 24+64(%2) \n\t"
- "packsshb $f4, $f4, $f10 \n\t"
- "ldc1 $f6, 32+64(%2) \n\t"
- "ldc1 $f10, 40+64(%2) \n\t"
- "packsshb $f6, $f6, $f10 \n\t"
- "ldc1 $f8, 48+64(%2) \n\t"
- "ldc1 $f10, 56+64(%2) \n\t"
- "packsshb $f8, $f8, $f10 \n\t"
- "paddb $f2, $f2, $f0 \n\t"
- "paddb $f4, $f4, $f0 \n\t"
- "paddb $f6, $f6, $f0 \n\t"
- "paddb $f8, $f8, $f0 \n\t"
- "sdc1 $f2, 0(%0) \n\t"
- "gssdxc1 $f4, 0(%0, %3) \n\t"
- "daddu $10, %3, %3 \n\t"
- "gssdxc1 $f6, 0(%0, $10) \n\t"
- "gssdxc1 $f8, 0(%0, %1) \n\t"
- : "+&r"(pixels),"=&r"(line_skip3)
- : "r"(block),"r"(line_skip),"r"(ff_pb_80)
- : "$10","memory"
+ PTR_ADDU "%[line_skip3], %[line_skip], %[line_skip] \n\t"
+ "ldc1 %[ftmp1], 0x00(%[block]) \n\t"
+ "ldc1 %[ftmp0], 0x08(%[block]) \n\t"
+ "packsshb %[ftmp1], %[ftmp1], %[ftmp0] \n\t"
+ "ldc1 %[ftmp2], 0x10(%[block]) \n\t"
+ "ldc1 %[ftmp0], 0x18(%[block]) \n\t"
+ "packsshb %[ftmp2], %[ftmp2], %[ftmp0] \n\t"
+ "ldc1 %[ftmp3], 0x20(%[block]) \n\t"
+ "ldc1 %[ftmp0], 0x28(%[block]) \n\t"
+ "packsshb %[ftmp3], %[ftmp3], %[ftmp0] \n\t"
+ "ldc1 %[ftmp4], 48(%[block]) \n\t"
+ "ldc1 %[ftmp0], 56(%[block]) \n\t"
+ "packsshb %[ftmp4], %[ftmp4], %[ftmp0] \n\t"
+ "paddb %[ftmp1], %[ftmp1], %[ff_pb_80] \n\t"
+ "paddb %[ftmp2], %[ftmp2], %[ff_pb_80] \n\t"
+ "paddb %[ftmp3], %[ftmp3], %[ff_pb_80] \n\t"
+ "paddb %[ftmp4], %[ftmp4], %[ff_pb_80] \n\t"
+ "sdc1 %[ftmp1], 0x00(%[pixels]) \n\t"
+ "gssdxc1 %[ftmp2], 0x00(%[pixels], %[line_skip]) \n\t"
+ "gssdxc1 %[ftmp3], 0x00(%[pixels], %[line_skip3]) \n\t"
+ PTR_ADDU "%[line_skip3], %[line_skip3], %[line_skip] \n\t"
+ "gssdxc1 %[ftmp4], 0x00(%[pixels], %[line_skip3]) \n\t"
+ PTR_ADDU "%[addr0], %[line_skip3], %[line_skip] \n\t"
+ PTR_ADDU "%[pixels], %[pixels], %[addr0] \n\t"
+ "ldc1 %[ftmp1], 0x40(%[block]) \n\t"
+ "ldc1 %[ftmp0], 0x48(%[block]) \n\t"
+ "packsshb %[ftmp1], %[ftmp1], %[ftmp0] \n\t"
+ "ldc1 %[ftmp2], 0x50(%[block]) \n\t"
+ "ldc1 %[ftmp0], 0x58(%[block]) \n\t"
+ "packsshb %[ftmp2], %[ftmp2], %[ftmp0] \n\t"
+ "ldc1 %[ftmp3], 0x60(%[block]) \n\t"
+ "ldc1 %[ftmp0], 0x68(%[block]) \n\t"
+ "packsshb %[ftmp3], %[ftmp3], %[ftmp0] \n\t"
+ "ldc1 %[ftmp4], 0x70(%[block]) \n\t"
+ "ldc1 %[ftmp0], 0x78(%[block]) \n\t"
+ "packsshb %[ftmp4], %[ftmp4], %[ftmp0] \n\t"
+ "paddb %[ftmp1], %[ftmp1], %[ff_pb_80] \n\t"
+ "paddb %[ftmp2], %[ftmp2], %[ff_pb_80] \n\t"
+ "paddb %[ftmp3], %[ftmp3], %[ff_pb_80] \n\t"
+ "paddb %[ftmp4], %[ftmp4], %[ff_pb_80] \n\t"
+ "sdc1 %[ftmp1], 0x00(%[pixels]) \n\t"
+ "gssdxc1 %[ftmp2], 0x00(%[pixels], %[line_skip]) \n\t"
+ PTR_ADDU "%[addr0], %[line_skip], %[line_skip] \n\t"
+ "gssdxc1 %[ftmp3], 0x00(%[pixels], %[addr0]) \n\t"
+ "gssdxc1 %[ftmp4], 0x00(%[pixels], %[line_skip3]) \n\t"
+ : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
+ [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
+ [ftmp4]"=&f"(ftmp[4]),
+ [addr0]"=&r"(addr[0]),
+ [pixels]"+&r"(pixels), [line_skip3]"+&r"(line_skip3)
+ : [block]"r"(block),
+ [line_skip]"r"((mips_reg)line_skip),
+ [ff_pb_80]"f"(ff_pb_80)
+ : "memory"
);
}
void ff_add_pixels_clamped_mmi(const int16_t *block,
uint8_t *av_restrict pixels, ptrdiff_t line_size)
{
- const int16_t *p;
- uint8_t *pix;
- int i = 4;
-
- p = block;
- pix = pixels;
+ double ftmp[8];
+ uint64_t tmp[1];
__asm__ volatile (
- "xor $f14, $f14, $f14 \r\n"
- ::
+ "li %[tmp0], 0x04 \n\t"
+ "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
+ "1: \n\t"
+ "ldc1 %[ftmp1], 0x00(%[block]) \n\t"
+ "ldc1 %[ftmp2], 0x08(%[block]) \n\t"
+ "ldc1 %[ftmp3], 0x10(%[block]) \n\t"
+ "ldc1 %[ftmp4], 0x18(%[block]) \n\t"
+ "ldc1 %[ftmp5], 0x00(%[pixels]) \n\t"
+ "gsldxc1 %[ftmp6], 0x00(%[pixels], %[line_size]) \n\t"
+ "mov.d %[ftmp7], %[ftmp5] \n\t"
+ "punpcklbh %[ftmp5], %[ftmp5], %[ftmp0] \n\t"
+ "punpckhbh %[ftmp7], %[ftmp7], %[ftmp0] \n\t"
+ "paddh %[ftmp1], %[ftmp1], %[ftmp5] \n\t"
+ "paddh %[ftmp2], %[ftmp2], %[ftmp7] \n\t"
+ "mov.d %[ftmp7], %[ftmp6] \n\t"
+ "punpcklbh %[ftmp6], %[ftmp6], %[ftmp0] \n\t"
+ "punpckhbh %[ftmp7], %[ftmp7], %[ftmp0] \n\t"
+ "paddh %[ftmp3], %[ftmp3], %[ftmp6] \n\t"
+ "paddh %[ftmp4], %[ftmp4], %[ftmp7] \n\t"
+ "packushb %[ftmp1], %[ftmp1], %[ftmp2] \n\t"
+ "packushb %[ftmp3], %[ftmp3], %[ftmp4] \n\t"
+ "sdc1 %[ftmp1], 0x00(%[pixels]) \n\t"
+ "gssdxc1 %[ftmp3], 0x00(%[pixels], %[line_size]) \n\t"
+ "addi %[tmp0], %[tmp0], -0x01 \n\t"
+ PTR_ADDIU "%[block], %[block], 0x20 \n\t"
+ PTR_ADDU "%[pixels], %[pixels], %[line_size] \n\t"
+ PTR_ADDU "%[pixels], %[pixels], %[line_size] \n\t"
+ "bnez %[tmp0], 1b"
+ : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
+ [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
+ [ftmp4]"=&f"(ftmp[4]), [ftmp5]"=&f"(ftmp[5]),
+ [ftmp6]"=&f"(ftmp[6]), [ftmp7]"=&f"(ftmp[7]),
+ [tmp0]"=&r"(tmp[0]),
+ [pixels]"+&r"(pixels), [block]"+&r"(block)
+ : [line_size]"r"((mips_reg)line_size)
+ : "memory"
);
-
- do {
- __asm__ volatile (
- "ldc1 $f0, 0+%2 \r\n"
- "ldc1 $f2, 8+%2 \r\n"
- "ldc1 $f4, 16+%2 \r\n"
- "ldc1 $f6, 24+%2 \r\n"
- "ldc1 $f8, %0 \r\n"
- "ldc1 $f12, %1 \r\n"
- "mov.d $f10, $f8 \r\n"
- "punpcklbh $f8, $f8, $f14 \r\n"
- "punpckhbh $f10, $f10, $f14 \r\n"
- "paddsh $f0, $f0, $f8 \r\n"
- "paddsh $f2, $f2, $f10 \r\n"
- "mov.d $f10, $f12 \r\n"
- "punpcklbh $f12, $f12, $f14 \r\n"
- "punpckhbh $f10, $f10, $f14 \r\n"
- "paddsh $f4, $f4, $f12 \r\n"
- "paddsh $f6, $f6, $f10 \r\n"
- "packushb $f0, $f0, $f2 \r\n"
- "packushb $f4, $f4, $f6 \r\n"
- "sdc1 $f0, %0 \r\n"
- "sdc1 $f4, %1 \r\n"
- : "+m"(*pix),"+m"(*(pix+line_size))
- : "m"(*p)
- : "memory"
- );
-
- pix += line_size*2;
- p += 16;
- } while (--i);
}
--
2.1.0
More information about the ffmpeg-devel
mailing list