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| author | Mans Rullgard <mans@mansr.com> | 2011-06-13 00:33:19 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-06-14 10:43:54 +0100 |
| commit | e897a633cded0a8f283114e22766790f48ae8fa7 (patch) | |
| tree | 24f437b9d36b7f44437ebae0afa35d960b35546b /libavcodec/arm/mpegvideo_armv5te_s.S | |
| parent | 11177a4d82da8f4987bf6dc755461be6a4e750c5 (diff) | |
| download | ffmpeg-e897a633cded0a8f283114e22766790f48ae8fa7.tar.gz | |
ARM: factor some repetitive code into macros
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/arm/mpegvideo_armv5te_s.S')
| -rw-r--r-- | libavcodec/arm/mpegvideo_armv5te_s.S | 61 |
1 files changed, 23 insertions, 38 deletions
diff --git a/libavcodec/arm/mpegvideo_armv5te_s.S b/libavcodec/arm/mpegvideo_armv5te_s.S index e83fe991e6..e3461601d5 100644 --- a/libavcodec/arm/mpegvideo_armv5te_s.S +++ b/libavcodec/arm/mpegvideo_armv5te_s.S @@ -35,6 +35,21 @@ * * Inner loop should take 6 cycles per element on arm926ej-s (Nokia 770) */ + +.macro dequant_t dst, src, mul, add, tmp + rsbs \tmp, ip, \src, asr #16 + addgt \tmp, \add, #0 + rsblt \tmp, \add, #0 + smlatbne \dst, \src, \mul, \tmp +.endm + +.macro dequant_b dst, src, mul, add, tmp + rsbs \tmp, ip, \src, lsl #16 + addgt \tmp, \add, #0 + rsblt \tmp, \add, #0 + smlabbne \dst, \src, \mul, \tmp +.endm + function ff_dct_unquantize_h263_armv5te, export=1 push {r4-r9,lr} mov ip, #0 @@ -44,50 +59,20 @@ function ff_dct_unquantize_h263_armv5te, export=1 1: ldrd r6, [r0, #8] - rsbs r9, ip, r4, asr #16 - addgt r9, r2, #0 - rsblt r9, r2, #0 - smlatbne r9, r4, r1, r9 - - rsbs lr, ip, r5, asr #16 - addgt lr, r2, #0 - rsblt lr, r2, #0 - smlatbne lr, r5, r1, lr - - rsbs r8, ip, r4, asl #16 - addgt r8, r2, #0 - rsblt r8, r2, #0 - smlabbne r4, r4, r1, r8 - - rsbs r8, ip, r5, asl #16 - addgt r8, r2, #0 - rsblt r8, r2, #0 - smlabbne r5, r5, r1, r8 + dequant_t r9, r4, r1, r2, r9 + dequant_t lr, r5, r1, r2, lr + dequant_b r4, r4, r1, r2, r8 + dequant_b r5, r5, r1, r2, r8 strh r4, [r0], #2 strh r9, [r0], #2 strh r5, [r0], #2 strh lr, [r0], #2 - rsbs r9, ip, r6, asr #16 - addgt r9, r2, #0 - rsblt r9, r2, #0 - smlatbne r9, r6, r1, r9 - - rsbs lr, ip, r7, asr #16 - addgt lr, r2, #0 - rsblt lr, r2, #0 - smlatbne lr, r7, r1, lr - - rsbs r8, ip, r6, asl #16 - addgt r8, r2, #0 - rsblt r8, r2, #0 - smlabbne r6, r6, r1, r8 - - rsbs r8, ip, r7, asl #16 - addgt r8, r2, #0 - rsblt r8, r2, #0 - smlabbne r7, r7, r1, r8 + dequant_t r9, r6, r1, r2, r9 + dequant_t lr, r7, r1, r2, lr + dequant_b r6, r6, r1, r2, r8 + dequant_b r7, r7, r1, r2, r8 strh r6, [r0], #2 strh r9, [r0], #2 |