From: Siarhei Siamashka <[email protected]>
Benchmark from Intel Core i7 860:
== before ==
op=1, src_fmt=10020565, dst_fmt=10020565, speed=1335.29 MPix/s
== after ==
op=1, src_fmt=10020565, dst_fmt=10020565, speed=1550.96 MPix/s
== performance of nonscaled src_0565_0565 operation as a reference ==
op=1, src_fmt=10020565, dst_fmt=10020565, speed=2401.31 MPix/s
Benchmark from ARM Cortex-A8:
== before ==
op=1, src_fmt=10020565, dst_fmt=10020565, speed=81.79 MPix/s
== after ==
op=1, src_fmt=10020565, dst_fmt=10020565, speed=89.55 MPix/s
== performance of nonscaled src_0565_0565 operation as a reference ==
op=1, src_fmt=10020565, dst_fmt=10020565, speed=197.44 MPix/s
---
pixman/pixman-fast-path.c | 51 ++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 48 insertions(+), 3 deletions(-)
diff --git a/pixman/pixman-fast-path.c b/pixman/pixman-fast-path.c
index c210919..5d5fa95 100644
--- a/pixman/pixman-fast-path.c
+++ b/pixman/pixman-fast-path.c
@@ -1399,15 +1399,60 @@ FAST_NEAREST (8888_565_cover, 8888, 0565, uint32_t,
uint16_t, SRC, COVER);
FAST_NEAREST (8888_565_none, 8888, 0565, uint32_t, uint16_t, SRC, NONE);
FAST_NEAREST (8888_565_pad, 8888, 0565, uint32_t, uint16_t, SRC, PAD);
FAST_NEAREST (8888_565_normal, 8888, 0565, uint32_t, uint16_t, SRC, NORMAL);
-FAST_NEAREST (565_565_cover, 0565, 0565, uint16_t, uint16_t, SRC, COVER);
-FAST_NEAREST (565_565_none, 0565, 0565, uint16_t, uint16_t, SRC, NONE);
-FAST_NEAREST (565_565_pad, 0565, 0565, uint16_t, uint16_t, SRC, PAD);
FAST_NEAREST (565_565_normal, 0565, 0565, uint16_t, uint16_t, SRC, NORMAL);
FAST_NEAREST (8888_565_cover, 8888, 0565, uint32_t, uint16_t, OVER, COVER);
FAST_NEAREST (8888_565_none, 8888, 0565, uint32_t, uint16_t, OVER, NONE);
FAST_NEAREST (8888_565_pad, 8888, 0565, uint32_t, uint16_t, OVER, PAD);
FAST_NEAREST (8888_565_normal, 8888, 0565, uint32_t, uint16_t, OVER, NORMAL);
+/* Use more unrolling for src_0565_0565 because it is typically CPU bound */
+static force_inline void
+scaled_nearest_scanline_565_565_SRC (uint16_t * dst,
+ uint16_t * src,
+ int32_t w,
+ pixman_fixed_t vx,
+ pixman_fixed_t unit_x,
+ pixman_fixed_t max_vx)
+{
+ uint16_t tmp1, tmp2, tmp3, tmp4;
+ while ((w -= 4) >= 0)
+ {
+ tmp1 = src[pixman_fixed_to_int (vx)];
+ vx += unit_x;
+ tmp2 = src[pixman_fixed_to_int (vx)];
+ vx += unit_x;
+ tmp3 = src[pixman_fixed_to_int (vx)];
+ vx += unit_x;
+ tmp4 = src[pixman_fixed_to_int (vx)];
+ vx += unit_x;
+ *dst++ = tmp1;
+ *dst++ = tmp2;
+ *dst++ = tmp3;
+ *dst++ = tmp4;
+ }
+ if (w & 2)
+ {
+ tmp1 = src[pixman_fixed_to_int (vx)];
+ vx += unit_x;
+ tmp2 = src[pixman_fixed_to_int (vx)];
+ vx += unit_x;
+ *dst++ = tmp1;
+ *dst++ = tmp2;
+ }
+ if (w & 1)
+ *dst++ = src[pixman_fixed_to_int (vx)];
+}
+
+FAST_NEAREST_MAINLOOP (565_565_cover_SRC,
+ scaled_nearest_scanline_565_565_SRC,
+ uint16_t, uint16_t, COVER);
+FAST_NEAREST_MAINLOOP (565_565_none_SRC,
+ scaled_nearest_scanline_565_565_SRC,
+ uint16_t, uint16_t, NONE);
+FAST_NEAREST_MAINLOOP (565_565_pad_SRC,
+ scaled_nearest_scanline_565_565_SRC,
+ uint16_t, uint16_t, PAD);
+
static force_inline uint32_t
fetch_nearest (pixman_repeat_t src_repeat,
pixman_format_code_t format,
--
1.7.2.2
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