ARM Skia NEON patches - 21 - new NEON S32_D565_Opaque




BlitRow565: NEON version of S32_D565_Opaque

Here's a new implementation of S32_D565_Opaque in NEON. It
improves dramatically the speed compared to S32A_D565_Opaque.

Here are the benchmark results (speedup vs. existing NEON):

+-------+-----------+------------+
| count | Cortex-A9 | Cortex-A15 |
+-------+-----------+------------+
| 1     | +130%     | +139%      |
+-------+-----------+------------+
| 2     | +65,2%    | +51%       |
+-------+-----------+------------+
| 4     | -25,5%    | +10,2%     |
+-------+-----------+------------+
| 8     | +63,8%    | +32,1%     |
+-------+-----------+------------+
| 16    | +110%     | +49,2%     |
+-------+-----------+------------+
| 64    | +153%     | +123,5%    |
+-------+-----------+------------+
| 256   | +151%     | +144,7%    |
+-------+-----------+------------+
| 1024  | +272%     | +157,2%    |
+-------+-----------+------------+

Signed-off-by: Kévin PETIT <kevin.petit@arm.com>

BUG=
R=djsollen@google.com, mtklein@google.com

Author: kevin.petit.arm@gmail.com

Review URL: https://chromiumcodereview.appspot.com/22351006

git-svn-id: http://skia.googlecode.com/svn/trunk@11415 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed