ARM Skia NEON patches - 38 - arm64 8888 blitters
Enable NEON on arm64 for most 8888 blitters
This patch enables NEON optimisation for the Color32, S32_Blend,
S32A_Opaque blitters on arm64.
Here are the perf improvements vs the existing code:
Color32:
========
+-------+------------+------------+
| count | Cortex-A53 | Cortex-A57 |
+-------+------------+------------+
| 1 | -2.39% | 23.78% |
+-------+------------+------------+
| 2 | -5.46% | 8.88% |
+-------+------------+------------+
| 4 | -4.74% | 4.89% |
+-------+------------+------------+
| 8 | 67.74% | 107.12% |
+-------+------------+------------+
| 16 | 40.03% | 101.20% |
+-------+------------+------------+
| 64 | 11.09% | 98.40% |
+-------+------------+------------+
| 256 | -2.20% | 74.81% |
+-------+------------+------------+
| 1024 | -4.28% | 78.90% |
+-------+------------+------------+
S32_Blend:
==========
+-------+------------+------------+
| count | Cortex-A53 | Cortex-A57 |
+-------+------------+------------+
| 1 | 7.84% | -6.75% |
+-------+------------+------------+
| 2 | 28.95% | 39.77% |
+-------+------------+------------+
| 4 | 5.80% | 8.26% |
+-------+------------+------------+
| 8 | 1.35% | 33.80% |
+-------+------------+------------+
| 16 | -2.13% | 41.13% |
+-------+------------+------------+
| 64 | -4.91% | 42.84% |
+-------+------------+------------+
| 256 | -6.53% | 48.72% |
+-------+------------+------------+
| 1024 | -6.65% | 46.66% |
+-------+------------+------------+
S32A_Opaque:
============
+-------+------------+------------+
| count | Cortex-A53 | Cortex-A57 |
+-------+------------+------------+
| 1 | -7.51% | -19.06% |
+-------+------------+------------+
| 2 | -5.02% | -27.70% |
+-------+------------+------------+
| 4 | 15.38% | -21.66% |
+-------+------------+------------+
| 8 | -0.98% | 1.05% |
+-------+------------+------------+
| 16 | -7.35% | 3.34% |
+-------+------------+------------+
| 64 | 50.53% | 94.63% |
+-------+------------+------------+
| 256 | 71.17% | 164.10% |
+-------+------------+------------+
| 1024 | 79.58% | 197.60% |
+-------+------------+------------+
Signed-off-by: Kevin PETIT <kevin.petit@arm.com>
BUG=skia:
R=djsollen@google.com, mtklein@google.com
Author: kevin.petit@arm.com
Review URL: https://codereview.chromium.org/302283003
2 files changed