[FFmpeg-cvslog] r21702 - in trunk/libavcodec/arm: dsputil_armv6.S dsputil_init_armv6.c
mru
subversion
Tue Feb 9 17:13:41 CET 2010
Author: mru
Date: Tue Feb 9 17:13:41 2010
New Revision: 21702
Log:
ARMv6 optimised diff_pixels
Modified:
trunk/libavcodec/arm/dsputil_armv6.S
trunk/libavcodec/arm/dsputil_init_armv6.c
Modified: trunk/libavcodec/arm/dsputil_armv6.S
==============================================================================
--- trunk/libavcodec/arm/dsputil_armv6.S Tue Feb 9 17:13:38 2010 (r21701)
+++ trunk/libavcodec/arm/dsputil_armv6.S Tue Feb 9 17:13:41 2010 (r21702)
@@ -309,6 +309,39 @@ function ff_get_pixels_armv6, export=1
pop {r4-r8, pc}
.endfunc
+function ff_diff_pixels_armv6, export=1
+ pld [r1, r3]
+ pld [r2, r3]
+ push {r4-r9, lr}
+ mov lr, #8
+1:
+ ldrd r4, r5, [r1], r3
+ ldrd r6, r7, [r2], r3
+ uxtb16 r8, r4
+ uxtb16 r4, r4, ror #8
+ uxtb16 r9, r6
+ uxtb16 r6, r6, ror #8
+ pld [r1, r3]
+ ssub16 r9, r8, r9
+ ssub16 r6, r4, r6
+ uxtb16 r8, r5
+ uxtb16 r5, r5, ror #8
+ pld [r2, r3]
+ pkhbt r4, r9, r6, lsl #16
+ pkhtb r6, r6, r9, asr #16
+ uxtb16 r9, r7
+ uxtb16 r7, r7, ror #8
+ ssub16 r9, r8, r9
+ ssub16 r5, r5, r7
+ subs lr, lr, #1
+ pkhbt r8, r9, r5, lsl #16
+ pkhtb r9, r5, r9, asr #16
+ stm r0!, {r4,r6,r8,r9}
+ bgt 1b
+
+ pop {r4-r9, pc}
+.endfunc
+
function ff_pix_abs16_armv6, export=1
ldr r0, [sp]
push {r4-r9, lr}
Modified: trunk/libavcodec/arm/dsputil_init_armv6.c
==============================================================================
--- trunk/libavcodec/arm/dsputil_init_armv6.c Tue Feb 9 17:13:38 2010 (r21701)
+++ trunk/libavcodec/arm/dsputil_init_armv6.c Tue Feb 9 17:13:41 2010 (r21702)
@@ -51,6 +51,8 @@ void ff_add_pixels_clamped_armv6(const D
int line_size);
void ff_get_pixels_armv6(DCTELEM *block, const uint8_t *pixels, int stride);
+void ff_diff_pixels_armv6(DCTELEM *block, const uint8_t *s1,
+ const uint8_t *s2, int stride);
int ff_pix_abs16_armv6(void *s, uint8_t *blk1, uint8_t *blk2,
int line_size, int h);
@@ -95,6 +97,7 @@ void av_cold ff_dsputil_init_armv6(DSPCo
c->add_pixels_clamped = ff_add_pixels_clamped_armv6;
c->get_pixels = ff_get_pixels_armv6;
+ c->diff_pixels = ff_diff_pixels_armv6;
c->pix_abs[0][0] = ff_pix_abs16_armv6;
c->pix_abs[0][1] = ff_pix_abs16_x2_armv6;
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