[FFmpeg-cvslog] avcodec/mips/pixblockdsp_mmi: Version 2 of the optimizations for loongson mmi
ZhouXiaoyong
git at videolan.org
Tue May 24 00:06:40 CEST 2016
ffmpeg | branch: master | ZhouXiaoyong <zhouxiaoyong at loongson.cn> | Tue May 17 19:15:46 2016 +0800| [377e5db3db4a6374521394bb797216909c8261dc] | committer: Michael Niedermayer
avcodec/mips/pixblockdsp_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
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=377e5db3db4a6374521394bb797216909c8261dc
---
libavcodec/mips/pixblockdsp_mmi.c | 101 ++++++++++++++++++++++---------------
1 file changed, 60 insertions(+), 41 deletions(-)
diff --git a/libavcodec/mips/pixblockdsp_mmi.c b/libavcodec/mips/pixblockdsp_mmi.c
index 30631d8..3ff84c0 100644
--- a/libavcodec/mips/pixblockdsp_mmi.c
+++ b/libavcodec/mips/pixblockdsp_mmi.c
@@ -22,58 +22,77 @@
*/
#include "pixblockdsp_mips.h"
+#include "libavutil/mips/asmdefs.h"
void ff_get_pixels_8_mmi(int16_t *av_restrict block, const uint8_t *pixels,
ptrdiff_t line_size)
{
+ double ftmp[6];
+ mips_reg tmp[2];
+
__asm__ volatile (
- "move $8, $0 \n\t"
- "xor $f0, $f0, $f0 \n\t"
- "1: \n\t"
- "gsldlc1 $f2, 7(%1) \n\t"
- "gsldrc1 $f2, 0(%1) \n\t"
- "punpcklbh $f4, $f2, $f0 \n\t"
- "punpckhbh $f6, $f2, $f0 \n\t"
- "gssdxc1 $f4, 0(%0, $8) \n\t"
- "gssdxc1 $f6, 8(%0, $8) \n\t"
- "daddiu $8, $8, 16 \n\t"
- "daddu %1, %1, %2 \n\t"
- "daddi %3, %3, -1 \n\t"
- "bnez %3, 1b \n\t"
- ::"r"((uint8_t *)block),"r"(pixels),"r"(line_size),"r"(8)
- : "$8","memory"
+ "li %[tmp1], 0x08 \n\t"
+ "move %[tmp0], $0 \n\t"
+ "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
+ "1: \n\t"
+ "gsldlc1 %[ftmp1], 0x07(%[pixels]) \n\t"
+ "gsldrc1 %[ftmp1], 0x00(%[pixels]) \n\t"
+ "punpcklbh %[ftmp2], %[ftmp1], %[ftmp0] \n\t"
+ "punpckhbh %[ftmp5], %[ftmp1], %[ftmp0] \n\t"
+ "gssdxc1 %[ftmp2], 0x00(%[block], %[tmp0]) \n\t"
+ "gssdxc1 %[ftmp5], 0x08(%[block], %[tmp0]) \n\t"
+ PTR_ADDI "%[tmp1], %[tmp1], -0x01 \n\t"
+ PTR_ADDIU "%[tmp0], %[tmp0], 0x10 \n\t"
+ PTR_ADDU "%[pixels], %[pixels], %[line_size] \n\t"
+ "bnez %[tmp1], 1b \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]),
+ [tmp0]"=&r"(tmp[0]), [tmp1]"=&r"(tmp[1]),
+ [pixels]"+&r"(pixels)
+ : [block]"r"((mips_reg)block), [line_size]"r"((mips_reg)line_size)
+ : "memory"
);
}
void ff_diff_pixels_mmi(int16_t *av_restrict block, const uint8_t *src1,
const uint8_t *src2, int stride)
{
+ double ftmp[5];
+ mips_reg tmp[1];
+
__asm__ volatile (
- "dli $2, 8 \n\t"
- "xor $f14, $f14, $f14 \n\t"
- "1: \n\t"
- "gsldlc1 $f0, 7(%1) \n\t"
- "gsldrc1 $f0, 0(%1) \n\t"
- "or $f2, $f0, $f0 \n\t"
- "gsldlc1 $f4, 7(%2) \n\t"
- "gsldrc1 $f4, 0(%2) \n\t"
- "or $f6, $f4, $f4 \n\t"
- "punpcklbh $f0, $f0, $f14 \n\t"
- "punpckhbh $f2, $f2, $f14 \n\t"
- "punpcklbh $f4, $f4, $f14 \n\t"
- "punpckhbh $f6, $f6, $f14 \n\t"
- "psubh $f0, $f0, $f4 \n\t"
- "psubh $f2, $f2, $f6 \n\t"
- "gssdlc1 $f0, 7(%0) \n\t"
- "gssdrc1 $f0, 0(%0) \n\t"
- "gssdlc1 $f2, 15(%0) \n\t"
- "gssdrc1 $f2, 8(%0) \n\t"
- "daddi %0, %0, 16 \n\t"
- "daddu %1, %1, %3 \n\t"
- "daddu %2, %2, %3 \n\t"
- "daddi $2, $2, -1 \n\t"
- "bgtz $2, 1b \n\t"
- ::"r"(block),"r"(src1),"r"(src2),"r"(stride)
- : "$2","memory"
+ "li %[tmp0], 0x08 \n\t"
+ "xor %[ftmp4], %[ftmp4], %[ftmp4] \n\t"
+ "1: \n\t"
+ "gsldlc1 %[ftmp0], 0x07(%[src1]) \n\t"
+ "gsldrc1 %[ftmp0], 0x00(%[src1]) \n\t"
+ "or %[ftmp1], %[ftmp0], %[ftmp0] \n\t"
+ "gsldlc1 %[ftmp2], 0x07(%[src2]) \n\t"
+ "gsldrc1 %[ftmp2], 0x00(%[src2]) \n\t"
+ "or %[ftmp3], %[ftmp2], %[ftmp2] \n\t"
+ "punpcklbh %[ftmp0], %[ftmp0], %[ftmp4] \n\t"
+ "punpckhbh %[ftmp1], %[ftmp1], %[ftmp4] \n\t"
+ "punpcklbh %[ftmp2], %[ftmp2], %[ftmp4] \n\t"
+ "punpckhbh %[ftmp3], %[ftmp3], %[ftmp4] \n\t"
+ "psubh %[ftmp0], %[ftmp0], %[ftmp2] \n\t"
+ "psubh %[ftmp1], %[ftmp1], %[ftmp3] \n\t"
+ "gssdlc1 %[ftmp0], 0x07(%[block]) \n\t"
+ "gssdrc1 %[ftmp0], 0x00(%[block]) \n\t"
+ "gssdlc1 %[ftmp1], 0x0f(%[block]) \n\t"
+ "gssdrc1 %[ftmp1], 0x08(%[block]) \n\t"
+ PTR_ADDI "%[tmp0], %[tmp0], -0x01 \n\t"
+ PTR_ADDIU "%[block], %[block], 0x10 \n\t"
+ PTR_ADDU "%[src1], %[src1], %[stride] \n\t"
+ PTR_ADDU "%[src2], %[src2], %[stride] \n\t"
+ "bgtz %[tmp0], 1b \n\t"
+ : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
+ [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
+ [ftmp4]"=&f"(ftmp[4]),
+ [tmp0]"=&r"(tmp[0]),
+ [block]"+&r"(block), [src1]"+&r"(src1),
+ [src2]"+&r"(src2)
+ : [stride]"r"((mips_reg)stride)
+ : "memory"
);
}
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