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From 19fc0c4c8d28796f0fbc2c8f47edc130851ae3a5 Mon Sep 17 00:00:00 2001
From: Siarhei Siamashka <siarhei.siamashka@nokia.com>
Date: Wed, 24 Feb 2010 02:14:45 +0000
Subject: ARM: added 'neon_composite_over_reverse_n_8888' fast path
This fast path function improves performance of 'poppler' cairo-perf trace.
Benchmark from ARM Cortex-A8 @720MHz
before:
[ # ] backend test min(s) median(s) stddev. count
[ 0] image poppler 38.986 39.158 0.23% 6/6
after:
[ # ] backend test min(s) median(s) stddev. count
[ 0] image poppler 24.981 25.136 0.28% 6/6
---
diff --git a/pixman/pixman-arm-neon-asm.S b/pixman/pixman-arm-neon-asm.S
index f2643de..eb8cc4c 100644
--- a/pixman/pixman-arm-neon-asm.S
+++ b/pixman/pixman-arm-neon-asm.S
@@ -680,6 +680,61 @@ generate_composite_function \
/******************************************************************************/
+.macro pixman_composite_over_reverse_n_8888_process_pixblock_tail_head
+ vrshr.u16 q14, q8, #8
+ PF add PF_X, PF_X, #8
+ PF tst PF_CTL, #0xF
+ vrshr.u16 q15, q9, #8
+ vrshr.u16 q12, q10, #8
+ vrshr.u16 q13, q11, #8
+ PF addne PF_X, PF_X, #8
+ PF subne PF_CTL, PF_CTL, #1
+ vraddhn.u16 d28, q14, q8
+ vraddhn.u16 d29, q15, q9
+ PF cmp PF_X, ORIG_W
+ vraddhn.u16 d30, q12, q10
+ vraddhn.u16 d31, q13, q11
+ vqadd.u8 q14, q0, q14
+ vqadd.u8 q15, q1, q15
+ vld4.8 {d0, d1, d2, d3}, [DST_R, :128]!
+ vmvn.8 d22, d3
+ PF pld, [PF_DST, PF_X, lsl #dst_bpp_shift]
+ vst4.8 {d28, d29, d30, d31}, [DST_W, :128]!
+ PF subge PF_X, PF_X, ORIG_W
+ vmull.u8 q8, d22, d4
+ PF subges PF_CTL, PF_CTL, #0x10
+ vmull.u8 q9, d22, d5
+ vmull.u8 q10, d22, d6
+ PF ldrgeb DUMMY, [PF_DST, DST_STRIDE, lsl #dst_bpp_shift]!
+ vmull.u8 q11, d22, d7
+.endm
+
+.macro pixman_composite_over_reverse_n_8888_init
+ add DUMMY, sp, #ARGS_STACK_OFFSET
+ vld1.32 {d7[0]}, [DUMMY]
+ vdup.8 d4, d7[0]
+ vdup.8 d5, d7[1]
+ vdup.8 d6, d7[2]
+ vdup.8 d7, d7[3]
+.endm
+
+generate_composite_function \
+ pixman_composite_over_reverse_n_8888_asm_neon, 0, 0, 32, \
+ FLAG_DST_READWRITE | FLAG_DEINTERLEAVE_32BPP, \
+ 8, /* number of pixels, processed in a single block */ \
+ 5, /* prefetch distance */ \
+ pixman_composite_over_reverse_n_8888_init, \
+ default_cleanup, \
+ pixman_composite_over_8888_8888_process_pixblock_head, \
+ pixman_composite_over_8888_8888_process_pixblock_tail, \
+ pixman_composite_over_reverse_n_8888_process_pixblock_tail_head, \
+ 28, /* dst_w_basereg */ \
+ 0, /* dst_r_basereg */ \
+ 4, /* src_basereg */ \
+ 24 /* mask_basereg */
+
+/******************************************************************************/
+
.macro pixman_composite_over_n_8_0565_process_pixblock_head
/* in */
vmull.u8 q0, d24, d8
diff --git a/pixman/pixman-arm-neon.c b/pixman/pixman-arm-neon.c
index 0a7ac31..30c5056 100644
--- a/pixman/pixman-arm-neon.c
+++ b/pixman/pixman-arm-neon.c
@@ -264,6 +264,7 @@ BIND_SRC_NULL_DST(add_8888_8888, uint32_t, 1, uint32_t, 1)
BIND_N_NULL_DST(over_n_0565, uint16_t, 1)
BIND_N_NULL_DST(over_n_8888, uint32_t, 1)
+BIND_N_NULL_DST(over_reverse_n_8888, uint32_t, 1)
BIND_SRC_NULL_DST(over_8888_0565, uint32_t, 1, uint16_t, 1)
BIND_SRC_NULL_DST(over_8888_8888, uint32_t, 1, uint32_t, 1)
@@ -442,6 +443,8 @@ static const pixman_fast_path_t arm_neon_fast_paths[] =
PIXMAN_STD_FAST_PATH (ADD, a8, null, a8, neon_composite_add_8000_8000),
PIXMAN_STD_FAST_PATH (ADD, a8r8g8b8, null, a8r8g8b8, neon_composite_add_8888_8888),
PIXMAN_STD_FAST_PATH (ADD, a8b8g8r8, null, a8b8g8r8, neon_composite_add_8888_8888),
+ PIXMAN_STD_FAST_PATH (OVER_REVERSE, solid, null, a8r8g8b8, neon_composite_over_reverse_n_8888),
+ PIXMAN_STD_FAST_PATH (OVER_REVERSE, solid, null, a8b8g8r8, neon_composite_over_reverse_n_8888),
{ PIXMAN_OP_NONE },
};
--
cgit v0.8.3-6-g21f6
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