diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-01-01 19:41:54 +0000 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2013-01-27 14:04:15 +0000 |
commit | 7ced3beec99e9965717f76cc822d0702383a1fce (patch) | |
tree | a7e5082f7f2aa0979db287b98cceb43b2c00544c | |
parent | b7f523e3bcbef1f08bf9b374f2704723d5298c1f (diff) |
sse2: Add a fast path for add_n_8888
This path is being exercised by inplace compositing of trapezoids, for
instance as used in the firefox-asteroids cairo-trace.
IVB i3-3720qm ./tests/lowlevel-blt-bench add_n_888:
reference memcpy speed = 14918.3MB/s (3729.6MP/s for 32bpp fills)
before: L1:1752.44 L2:2259.48 M:2215.73 ( 58.80%) HT:589.49 VT:404.04 R:424.69 RT:134.68 (1182Kops/s)
after: L1:3931.21 L2:6132.78 M:3440.17 ( 92.24%) HT:1337.70 VT:1357.64 R:1270.27 RT:359.78 (2161Kops/s)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
-rw-r--r-- | pixman/pixman-sse2.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/pixman/pixman-sse2.c b/pixman/pixman-sse2.c index 5a0e062..f4a7d51 100644 --- a/pixman/pixman-sse2.c +++ b/pixman/pixman-sse2.c @@ -4523,9 +4523,70 @@ sse2_composite_add_8888_8888 (pixman_implementation_t *imp, sse2_combine_add_u (imp, op, dst, src, NULL, width); } +} + +static void +sse2_composite_add_n_8888 (pixman_implementation_t *imp, + pixman_composite_info_t *info) +{ + PIXMAN_COMPOSITE_ARGS (info); + uint32_t *dst_line, *dst, src; + int dst_stride; + + __m128i xmm_src; + + PIXMAN_IMAGE_GET_LINE (dest_image, dest_x, dest_y, uint32_t, dst_stride, dst_line, 1); + + src = _pixman_image_get_solid (imp, src_image, dest_image->bits.format); + if (src == 0) + return; + + if (src == ~0) + { + pixman_fill (dest_image->bits.bits, dest_image->bits.rowstride, 32, + dest_x, dest_y, width, height, ~0); + + return; + } + + xmm_src = _mm_set_epi32 (src, src, src, src); + while (height--) + { + int w = width; + uint32_t d; + + dst = dst_line; + dst_line += dst_stride; + + while (w && (unsigned long)dst & 15) + { + d = *dst; + *dst++ = + _mm_cvtsi128_si32 ( _mm_adds_epu8 (xmm_src, _mm_cvtsi32_si128 (d))); + w--; + } + + while (w >= 4) + { + save_128_aligned + ((__m128i*)dst, + _mm_adds_epu8 (xmm_src, load_128_aligned ((__m128i*)dst))); + + dst += 4; + w -= 4; + } + while (w--) + { + d = *dst; + *dst++ = + _mm_cvtsi128_si32 (_mm_adds_epu8 (xmm_src, + _mm_cvtsi32_si128 (d))); + } + } } + static pixman_bool_t sse2_blt (pixman_implementation_t *imp, uint32_t * src_bits, @@ -5848,6 +5909,10 @@ static const pixman_fast_path_t sse2_fast_paths[] = PIXMAN_STD_FAST_PATH (ADD, a8b8g8r8, null, a8b8g8r8, sse2_composite_add_8888_8888), PIXMAN_STD_FAST_PATH (ADD, solid, a8, a8, sse2_composite_add_n_8_8), PIXMAN_STD_FAST_PATH (ADD, solid, null, a8, sse2_composite_add_n_8), + PIXMAN_STD_FAST_PATH (ADD, solid, null, x8r8g8b8, sse2_composite_add_n_8888), + PIXMAN_STD_FAST_PATH (ADD, solid, null, a8r8g8b8, sse2_composite_add_n_8888), + PIXMAN_STD_FAST_PATH (ADD, solid, null, x8b8g8r8, sse2_composite_add_n_8888), + PIXMAN_STD_FAST_PATH (ADD, solid, null, a8b8g8r8, sse2_composite_add_n_8888), /* PIXMAN_OP_SRC */ PIXMAN_STD_FAST_PATH (SRC, solid, a8, a8r8g8b8, sse2_composite_src_n_8_8888), |