diff options
author | Ben Avison <bavison@riscosopen.org> | 2015-04-15 20:03:06 +0100 |
---|---|---|
committer | Ben Avison <bavison@riscosopen.org> | 2015-10-15 13:55:53 +0100 |
commit | 58ffa060527ccc44d6aa51db1cc211dc54872223 (patch) | |
tree | 59dc19e674c26ec861368633bd4b19a180b74265 | |
parent | ff74e93de6a3691bbdcd84d731ff64bbdac1f0fe (diff) |
armv7: Add in_n_8888 fast path
This is tuned for Cortex-A7 (Raspberry Pi 2).
lowlevel-blt-bench results, compared to the ARMv6 fast path:
Before After
Mean StdDev Mean StdDev Confidence Change
L1 104.6 0.5 119.4 0.1 100.0% +14.1%
L2 106.8 0.6 121.4 0.1 100.0% +13.6%
M 100.3 1.3 116.4 0.0 100.0% +16.0%
HT 64.5 1.0 70.8 0.1 100.0% +9.8%
VT 56.0 0.8 62.2 0.1 100.0% +11.1%
R 54.1 0.9 55.2 0.0 100.0% +1.9%
RT 24.6 0.5 26.6 0.0 100.0% +8.3%
-rw-r--r-- | pixman/pixman-arm-neon-asm.S | 64 | ||||
-rw-r--r-- | pixman/pixman-arm-neon.c | 4 |
2 files changed, 68 insertions, 0 deletions
diff --git a/pixman/pixman-arm-neon-asm.S b/pixman/pixman-arm-neon-asm.S index f276f60..1fdd373 100644 --- a/pixman/pixman-arm-neon-asm.S +++ b/pixman/pixman-arm-neon-asm.S @@ -3233,6 +3233,70 @@ generate_composite_function \ /******************************************************************************/ +.macro pixman_composite_in_n_8888_init + add DUMMY, sp, #ARGS_STACK_OFFSET + vld1.8 {d0[]}, [DUMMY]! + vld1.8 {d1[]}, [DUMMY]! + vld1.8 {d2[]}, [DUMMY]! + vld1.8 {d3[]}, [DUMMY]! +.endm + +.macro pixman_composite_in_n_8888_process_pixblock_head + /* src is in d0-d3 (deinterleaved) */ + /* destination pixel data is in d4-d7 (deinterleaved, though we only need alpha from d7) */ + vmull.u8 q11, d3, d7 + vmull.u8 q10, d2, d7 + vmull.u8 q9, d1, d7 + vmull.u8 q8, d0, d7 + vrshr.u16 q15, q11, #8 + vrshr.u16 q14, q10, #8 + vrshr.u16 q13, q9, #8 + vrshr.u16 q12, q8, #8 + vraddhn.u16 d31, q11, q15 + vraddhn.u16 d30, q10, q14 + vraddhn.u16 d28, q8, q12 + vraddhn.u16 d29, q9, q13 +.endm + +.macro pixman_composite_in_n_8888_process_pixblock_tail + /* result is in d28-d31 */ +.endm + +.macro pixman_composite_in_n_8888_process_pixblock_tail_head + vld4.8 {d4-d7}, [DST_R :128]! + cache_preload 8, 8 + vzip.8 d28, d30 + vmull.u8 q11, d3, d7 + vzip.8 d29, d31 + vmull.u8 q10, d2, d7 + vmull.u8 q9, d1, d7 + vmull.u8 q8, d0, d7 + vzip.8 d28, d29 + vzip.8 d30, d31 + vst1.8 {d28-d31}, [DST_W :128]! + vrshr.u16 q15, q11, #8 + vrshr.u16 q14, q10, #8 + vrshr.u16 q13, q9, #8 + vrshr.u16 q12, q8, #8 + vraddhn.u16 d31, q11, q15 + vraddhn.u16 d30, q10, q14 + vraddhn.u16 d28, q8, q12 + vraddhn.u16 d29, q9, q13 +.endm + +generate_composite_function \ + pixman_composite_in_n_8888_asm_neon, 0, 0, 32, \ + FLAG_DST_READWRITE | FLAG_DEINTERLEAVE_32BPP, \ + 8, /* number of pixels, processed in a single block */ \ + 6, /* prefetch distance */ \ + pixman_composite_in_n_8888_init, \ + default_cleanup, \ + pixman_composite_in_n_8888_process_pixblock_head, \ + pixman_composite_in_n_8888_process_pixblock_tail, \ + pixman_composite_in_n_8888_process_pixblock_tail_head + +/******************************************************************************/ + .macro pixman_composite_src_1555_8888_process_pixblock_head /* src is in d0-d1 */ vshrn.i16 d31, q0, #8 diff --git a/pixman/pixman-arm-neon.c b/pixman/pixman-arm-neon.c index 254fee0..f6ee582 100644 --- a/pixman/pixman-arm-neon.c +++ b/pixman/pixman-arm-neon.c @@ -81,6 +81,8 @@ PIXMAN_ARM_BIND_FAST_PATH_N_DST (SKIP_ZERO_SRC, neon, over_reverse_n_8888, uint32_t, 1) PIXMAN_ARM_BIND_FAST_PATH_N_DST (0, neon, in_n_8, uint8_t, 1) +PIXMAN_ARM_BIND_FAST_PATH_N_DST (0, neon, in_n_8888, + uint32_t, 1) PIXMAN_ARM_BIND_FAST_PATH_N_MASK_DST (SKIP_ZERO_SRC, neon, over_n_8_0565, uint8_t, 1, uint16_t, 1) @@ -382,6 +384,8 @@ static const pixman_fast_path_t arm_neon_fast_paths[] = PIXMAN_STD_FAST_PATH (IN, a8r8g8b8, null, a8, neon_composite_in_8888_8), PIXMAN_STD_FAST_PATH (IN, a8b8g8r8, null, a8, neon_composite_in_8888_8), PIXMAN_STD_FAST_PATH (IN, a8r8g8b8_sRGB, null, a8, neon_composite_in_8888_8), + PIXMAN_STD_FAST_PATH (IN, solid, null, a8r8g8b8, neon_composite_in_n_8888), + PIXMAN_STD_FAST_PATH (IN, solid, null, a8b8g8r8, neon_composite_in_n_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_STD_FAST_PATH (IN_REVERSE, a8r8g8b8, null, x8r8g8b8, neon_composite_in_reverse_8888_8888), |