diff options
| author | Ben Avison <bavison@riscosopen.org> | 2014-05-26 21:49:24 +0100 |
|---|---|---|
| committer | Ben Avison <bavison@riscosopen.org> | 2015-10-15 13:55:53 +0100 |
| commit | 8196065fcba654e88aa5547d68dd69a203b5111e (patch) | |
| tree | 7f6a33575403c32cd3546fd06af8aa1b3a1309d2 | |
| parent | e77f84ab88fc93f6acd9b81c7e862462494f9b11 (diff) | |
pixman-fast-path: Add in_8888_8 fast path
This is a C fast path, useful for reference or for platforms that don't
have their own fast path for this operation.
lowlevel-blt-bench results on ARMv6:
Before After
Mean StdDev Mean StdDev Confidence Change
L1 12.4 0.1 24.4 0.3 100.0% +97.8%
L2 9.5 0.1 14.1 0.2 100.0% +48.1%
M 9.6 0.0 14.7 0.0 100.0% +53.1%
HT 7.9 0.0 12.0 0.1 100.0% +52.3%
VT 7.7 0.0 11.6 0.1 100.0% +49.8%
R 7.4 0.0 10.8 0.1 100.0% +47.2%
RT 4.1 0.0 6.1 0.1 100.0% +48.2%
| -rw-r--r-- | pixman/pixman-fast-path.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/pixman/pixman-fast-path.c b/pixman/pixman-fast-path.c index 4c099fa..2185e90 100644 --- a/pixman/pixman-fast-path.c +++ b/pixman/pixman-fast-path.c @@ -262,6 +262,43 @@ fast_composite_in_8_8 (pixman_implementation_t *imp, } static void +fast_composite_in_8888_8 (pixman_implementation_t *imp, + pixman_composite_info_t *info) +{ + PIXMAN_COMPOSITE_ARGS (info); + uint8_t *dst_line, *dst; + uint32_t *src_line, *src; + int dst_stride, src_stride; + int32_t w; + uint8_t s; + uint16_t t; + + PIXMAN_IMAGE_GET_LINE (src_image, src_x, src_y, uint32_t, src_stride, src_line, 1); + PIXMAN_IMAGE_GET_LINE (dest_image, dest_x, dest_y, uint8_t, dst_stride, dst_line, 1); + + while (height--) + { + dst = dst_line; + dst_line += dst_stride; + src = src_line; + src_line += src_stride; + w = width; + + while (w--) + { + s = *src++ >> 24; + + if (s == 0) + *dst = 0; + else if (s != 0xff) + *dst = MUL_UN8 (s, *dst, t); + + dst++; + } + } +} + +static void fast_composite_over_n_8_8888 (pixman_implementation_t *imp, pixman_composite_info_t *info) { @@ -1948,6 +1985,9 @@ static const pixman_fast_path_t c_fast_paths[] = PIXMAN_STD_FAST_PATH (SRC, a1r5g5b5, null, x1r5g5b5, fast_composite_src_memcpy), PIXMAN_STD_FAST_PATH (SRC, a8, null, a8, fast_composite_src_memcpy), PIXMAN_STD_FAST_PATH (IN, a8, null, a8, fast_composite_in_8_8), + PIXMAN_STD_FAST_PATH (IN, a8r8g8b8, null, a8, fast_composite_in_8888_8), + PIXMAN_STD_FAST_PATH (IN, a8b8g8r8, null, a8, fast_composite_in_8888_8), + PIXMAN_STD_FAST_PATH (IN, a8r8g8b8_sRGB, null, a8, fast_composite_in_8888_8), PIXMAN_STD_FAST_PATH (IN, solid, a8, a8, fast_composite_in_n_8_8), SIMPLE_NEAREST_FAST_PATH (SRC, x8r8g8b8, x8r8g8b8, 8888_8888), |