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| author | Leon van Stuivenberg <leonvs@iae.nl> | 2003-03-21 22:50:54 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2003-03-21 22:50:54 +0000 |
| commit | 5e0daa0ac51db5351ad9686b38041ffff4c35168 (patch) | |
| tree | 08201c35895f3563fdaecf38d2dab23e11f4cc35 /libavcodec/ps2 | |
| parent | 558eae031ecf620f0baeed6049d90bf5257c90c5 (diff) | |
| download | ffmpeg-5e0daa0ac51db5351ad9686b38041ffff4c35168.tar.gz | |
new versions; put_pix's about 20% faster, get_pix 3.5x faster. patch by (Leon van Stuivenberg <leonvs at iae dot nl>)
Originally committed as revision 1697 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ps2')
| -rw-r--r-- | libavcodec/ps2/dsputil_mmi.c | 90 |
1 files changed, 59 insertions, 31 deletions
diff --git a/libavcodec/ps2/dsputil_mmi.c b/libavcodec/ps2/dsputil_mmi.c index 93ae27cdbd..3932f39e1e 100644 --- a/libavcodec/ps2/dsputil_mmi.c +++ b/libavcodec/ps2/dsputil_mmi.c @@ -49,63 +49,91 @@ static void clear_blocks_mmi(DCTELEM * blocks) static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size) { - int i; - for(i=0;i<8;i++) { asm volatile( ".set push \n\t" ".set mips3 \n\t" - "ld $8, 0(%1) \n\t" - "add %1, %1, %2 \n\t" + "ld $8, 0(%0) \n\t" + "add %0, %0, %2 \n\t" + "ld $9, 0(%0) \n\t" + "add %0, %0, %2 \n\t" + "ld $10, 0(%0) \n\t" "pextlb $8, $0, $8 \n\t" - "sq $8, 0(%0) \n\t" + "sq $8, 0(%1) \n\t" + "add %0, %0, %2 \n\t" + "ld $8, 0(%0) \n\t" + "pextlb $9, $0, $9 \n\t" + "sq $9, 16(%1) \n\t" + "add %0, %0, %2 \n\t" + "ld $9, 0(%0) \n\t" + "pextlb $10, $0, $10 \n\t" + "sq $10, 32(%1) \n\t" + "add %0, %0, %2 \n\t" + "ld $10, 0(%0) \n\t" + "pextlb $8, $0, $8 \n\t" + "sq $8, 48(%1) \n\t" + "add %0, %0, %2 \n\t" + "ld $8, 0(%0) \n\t" + "pextlb $9, $0, $9 \n\t" + "sq $9, 64(%1) \n\t" + "add %0, %0, %2 \n\t" + "ld $9, 0(%0) \n\t" + "pextlb $10, $0, $10 \n\t" + "sq $10, 80(%1) \n\t" + "pextlb $8, $0, $8 \n\t" + "sq $8, 96(%1) \n\t" + "pextlb $9, $0, $9 \n\t" + "sq $9, 112(%1) \n\t" ".set pop \n\t" - :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" ); - block += 8; - } + : "+r" (pixels) : "r" (block), "r" (line_size) : "$8", "$9", "$10", "memory" ); } static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) { - int i; - for(i=0; i<h; i++) { asm volatile( ".set push \n\t" ".set mips3 \n\t" + "1: \n\t" "ldr $8, 0(%1) \n\t" + "addiu %2, %2, -1 \n\t" "ldl $8, 7(%1) \n\t" - "add %1, %1, %2 \n\t" + "add %1, %1, %3 \n\t" "sd $8, 0(%0) \n\t" - "add %0, %0, %2 \n\t" + "add %0, %0, %3 \n\t" + "bgtz %2, 1b \n\t" ".set pop \n\t" - :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" ); - } + : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size) + : "$8", "memory" ); } static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) { - int i; - for(i=0; i<(h>>2); i++) { asm volatile ( ".set push \n\t" ".set mips3 \n\t" -#define PUTPIX16 \ - "ldr $8, 0(%1) \n\t" \ - "ldl $8, 7(%1) \n\t" \ - "ldr $9, 8(%1) \n\t" \ - "ldl $9, 15(%1) \n\t" \ - "add %1, %1, %2 \n\t" \ - "pcpyld $8, $9, $8 \n\t" \ - "sq $8, 0(%0) \n\t" \ - "add %0, %0, %2 \n\t" - PUTPIX16 - PUTPIX16 - PUTPIX16 - PUTPIX16 + "1: \n\t" + "ldr $8, 0(%1) \n\t" + "add $11, %1, %3 \n\t" + "ldl $8, 7(%1) \n\t" + "add $10, %0, %3 \n\t" + "ldr $9, 8(%1) \n\t" + "ldl $9, 15(%1) \n\t" + "ldr $12, 0($11) \n\t" + "add %1, $11, %3 \n\t" + "ldl $12, 7($11) \n\t" + "pcpyld $8, $9, $8 \n\t" + "sq $8, 0(%0) \n\t" + "ldr $13, 8($11) \n\t" + "addiu %2, %2, -2 \n\t" + "ldl $13, 15($11) \n\t" + "add %0, $10, %3 \n\t" + "pcpyld $12, $13, $12 \n\t" + "sq $12, 0($10) \n\t" + "bgtz %2, 1b \n\t" ".set pop \n\t" - :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "$9", "memory" ); - } + : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size) + : "$8", "$9", "$10", "$11", "$12", "$13", "memory" ); } |