Hi all, Here are patches to add ARM NEON acceleration in generic software fallbacks. (See NEON: http://www.arm.com/products/processors/technologies/neon.php)
The NEON optimization is target to RGB16 and ARGB, This is the benchmark on my
ARM platform ( AML8726 Cortex-A9 ):
Benchmarking 256x256 on 1280x697 RGB16 (16bit)...
Fill Rectangle (blend) 96% (improved)
Fill Rectangles [10] (blend) 98%
Fill Triangles (blend) 63%
Fill Spans (blend) 88%
Blit with format conversion 115%
Blit with colorizing 45%
Blit from 32bit (blend) 141%
Blit from 32bit (blend) with colorizing 86%
Blit from 8bit palette (blend) 75%
Blit SrcOver (premultiplied source) 67%
Blit SrcOver (premultiply source) 57%
Stretch Blit indexed 20%
Benchmarking 256x256 on 1280x697 ARGB (32bit)...
Fill Rectangle (blend) 96% (improved)
Fill Rectangles [10] (blend) 98%
Fill Triangles (blend) 62%
Fill Spans (blend) 89%
Blit 114%
Blit 180 34%
Blit with colorizing 56%
Blit with mask 65%
Blit from 32bit (blend) 137%
Blit from 32bit (blend) with colorizing 87%
Blit from 8bit palette (blend) 75%
Blit SrcOver (premultiplied source) 66%
Blit SrcOver (premultiply source) 56%
Stretch Blit 23%
Stretch Flip Vertical 22%
In this patch, added "-enable-neon" configure flag, NEON Compiler checking and
NEON runtime detection,
./configure --help
Optional Features:
...
--enable-unique enable Unique (WM Module) [default=no]
--enable-mmx enable MMX support [default=auto]
--enable-sse enable SSE support [default=auto]
--enable-neon enable NEON support [default=auto]
# dfbinfo
~~~~~~~~~~~~~~~~~~~~~~~~~~| DirectFB 1.6.0-pre1 |~~~~~~~~~~~~~~~~~~~~~~~~~~
(c) 2001-2010 The world wide DirectFB Open Source Community
(c) 2000-2004 Convergence (integrated media) GmbH
----------------------------------------------------------------
(*) DirectFB/Core: Single Application Core. (2011-11-16 03:34) [ DEBUG ][ TRACE
]
(*) Direct/Memcpy: Using libc memcpy()
(*) Direct/Thread: Started 'VT Switcher' (-1) [CRITICAL OTHER/OTHER 0/0]
<8388608>...
(*) Direct/Thread: Started 'VT Flusher' (-1) [DEFAULT OTHER/OTHER 0/0]
<8388608>...
(*) DirectFB/FBDev: Found 'OSD FB' (ID 0) with frame buffer at 0x84100000,
8192k (MMIO 0x00000000, 0k)
(*) Direct/Thread: Started 'Keyboard Input' (-1) [INPUT OTHER/OTHER 0/0]
<8388608>...
(*) DirectFB/Input: Keyboard 0.9 (directfb.org)
(*) Direct/Thread: Started 'PS/2 Input' (-1) [INPUT OTHER/OTHER 0/0]
<8388608>...
(*) DirectFB/Input: IMPS/2 Mouse 1.0 (directfb.org)
(*) Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0]
<8388608>...
(*) DirectFB/Input: ADS7846 Touchscreen 0.1 (directfb.org)
(*) Direct/Thread: Started 'Hotplug with Linux Input' (-1) [INPUT OTHER/OTHER
0/0] <8388608>...
(*) DirectFB/Input: Hot-plug detection enabled with Linux Input Driver
(*) DirectFB/Genefx: NEON detected and enabled
(*) DirectFB/Graphics: NEON Software Rasterizer 0.6 (directfb.org)
[ 8068.580000] start check var
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
...
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0001-dircet-Add-NEON-support.patch
Description: 0001-dircet-Add-NEON-support.patch
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