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Linaro系列文章第一篇,Linaro介绍
Fang Bao 鲍方
本篇文章是Linaro系列文章的第一篇,主要介绍
Linaro
的历史、现状以及组织架构。 本文包含如下章节:一、Linaro溯源 二、 Linaro简介 三、 Linaro技术指导委员会(Technical Steering Committee, TSC)四、 Linaro员工 五、 Linaro工程团队组织架构一、 Linaro溯源
ARM® 是全球领先的半导体知识产权 (IP) 提供商ARM Holdings的简称…
September 11, 2013
如何将Android带入互联网数字家庭? 第四篇
Leon Zhang 章立
在第一篇中,我们分享了
数字家庭软件平台的发展趋势和特点
;在第二篇中,我们归纳了将Android移植到电视、机顶盒平台需要面对的五大技术挑战并重点探讨了
挑战1 : 符合电视体验的2D/3D图形性能和用户交互模式方面的挑战
。在第三篇中, 我们探讨了更多的挑战, 包括“
适合大屏的丰富多媒体影音体验”,“如何集成数字电视相关功能”, “如何推动应用开发者开发适合于TV的Android应用”…
September 11, 2013
如何将Android带入互联网数字家庭? 第三篇
Leon Zhang 章立
在第一篇中,我们分享了
数字家庭软件平台的发展趋势和特点
;在第二篇中,我们归纳了将Android移植到电视、机顶盒平台需要面对的五大技术挑战并重点探讨了挑
战1 : 符合电视体验的2D/3D图形性能和用户交互模式方面的挑战
。在本篇中,我们将一起来继续分析其他的技术挑战。挑战 2 : 适合大屏的丰富多媒体影音体验:Android设计时是以移动手持设备为目标的,因此并没有考虑作为家庭娱乐中心的电视和机顶盒的多媒体影音需求…
September 11, 2013
谷歌V8部署到ARM上:性能得到5倍提升
Martyn
]现代网页主要构建于三大技术:HTML、CSS和JavaScript。JavaScript推动了交互式网页的发展;JavaScript执行速度慢也就意味着网页打开的速度慢。所以现在,人们做了大量的工作,努力改善JavaScript的性能,让我们能够拥有与台式机相同的功能,无论身处何处,都能轻松体验到强大的网页应用。
Gmail
、
Google Maps
和
Google Docs
等网络应用程序均广泛使用JavaScript…
September 11, 2013
NEON编码 - 第4部分: 左右移位
Martyn
英文版:
Coding for NEON - Part 4: Shifting Left and Right
本文将介绍NEON提供的移位运算,并显示如何利用移位运算在常用颜色深度之间转换影像数据。本系列前期已发布的文章包括:
第1部分:加载与存储
,
第2部分:余数的处理
,
第3部分:矩阵乘法
。向量移位NEON上的移位与标量ARM编码中可能用到的移位非常相似,即每个向量元素的位数均向左或向右移位,出现在每个元素左侧或右侧的位将被删除…
September 11, 2013
关于Android NDK的10个技巧
Dave Butcher
随着
Android NDK
(本机开发套件)披露了许多的新设备和新功能,现在我们可以充分利用这些ARM设备了。下面列举了一些快速提示,希望对您有所帮助。1 - 关注目标最新的设备一般是
ARMv7
,这意味着它可以使用v7版本和功能。最新版的NDK增加了ARMv7和NEON代码支持,可以实现关键循环操作和媒体操作优化,远超其它方法。NDK提供小型静态库,可以帮助您识别运行时的选项。有关如何使用这些功能的示例…
September 11, 2013
如何将Android带入互联网数字家庭? 第二篇
Leon Zhang 章立
在上一篇中,我们探讨了数字电视/机顶盒软件架构的现状与未来,分享了数字家庭软件平台未来的发展趋势和特点(
如何将Android带入互联网数字家庭? 第一篇
)。在本篇中,我们将一起来探讨为什么Android能够成为未来数字家庭软件平台的选择之一;而我们又如何才能将原本为手持设备量身定做的Android移植到电视/机顶盒平台? 1. 首先,我们需要回答的第一个问题就是: Why Android?为什么Android能够成为未来数字家庭软件平台的有力竞争者…
September 11, 2013
如何将Android带入互联网数字家庭? 第一篇
Leon Zhang 章立
Android作为优秀的开源软件解决方案, 它的作用域已经从手机市场,波及到了平板电脑,甚至以数字电视、机顶盒为典型应用的数字家庭领域。Android最初是为手机移动设备量身定做的,它默认支持的分辨率,色彩深度, 多媒体播放架构,用户交互方式,2D/3D图形的性能等都无法适应类似于数字电视,机顶盒这样的家庭应用。因此,将Android移植到数字电视或机顶盒需要对Android进行大量的定制和修改。这些修改和定制涉及到Android软件架构中的各个层面…
September 11, 2013
ARM系统预引导固件的新机遇- UEFI, Part 2
Guest Partner Blogger
上回我介绍了UEFI和它的历史
,现在我将探讨它,特别是在ARM的系统上的优越性。我也会更详细地描述UEFI论坛的组织结构。优越性尽管现有的ARM预引导固件并没有BIOS的束缚,使用UEFI标准对ARM预引导固件仍有很多优越性。 OEM / ODM厂商一直在试图降低开发成本。代码共享是在预引导固件领域实现这目标的一种方式。ARM和x86都注重计算连续性,UEFI不仅使得在ARM产品之间或在x86产品之间代码共享…
September 11, 2013
ARM系统预引导固件的新机遇- UEFI
Guest Partner Blogger
ARM处理器已经在智能手机市场占主导地位,并越来越成为整个嵌入式领域的主流。最近,ARM处理器也进军服务器领域,追求计算连续性。然而,历史上,ARM系统没有一个预引导固件的标准。这使得每个设计都有自己独特的与所引导的操作系统紧密结合的模式。这种传统的方法意味着固件开发者必须保持完全不同的代码库,即使系统可能使用的外围设备(网络,SATA接口,USB控制器等)和整个设计功能集是相同的。传统的ARM设…
September 11, 2013
How to run LAMP and Drupal on a PandaBoard in seven simple steps
Leo Lara
This tutorial explains how to have a
LAMP
server running
Drupal
on a
PandaBoard
. These instructions will apply to any other
Cortex-A
platform with few or no changes.The growing variety of ARMv7-based inexpensive…
September 11, 2013
Comparison of JavaScript execution modes of the WebKit browser engine
Guest Partner Blogger
Nowadays web browsers are among the most widely used software tools. You can find them being used everywhere on devices ranging from phones and tablets to personal computers. The heart of all browsers…
September 11, 2013
DS-5 Streamline Performance Analyzer on Allwinner Android 4.0 HDMI Dongle
Bob Peng
ARM® DS-5TM Streamline Performance Analyzer
, part of the
ARM DS-5
toolchain, is an useful tool for developers doing system level software optimization for ARM Linux and Android platforms. Streamline…
September 11, 2013
Linux hwmon, power management and ARM DS-5 Streamline
Paweł Moll
The hwmon is a generic Linux kernel subsystem, providing access to hardware monitoring components like temperature or voltage/current sensors. Traditionally interfaced via external buses like I2C, many…
September 11, 2013
Debugging multicore devices via USB with ARM DS-5
Stephen Theobald
ARM-based platforms come in a range of processor configurations, and these platforms often have more than one ARM processor. Traditionally these have been Symmetric Multi Processing (SMP) systems, where…
September 11, 2013
UEFI Debug Made Easy
Stephen Theobald
This blog shows step-by-step how to build the UEFI software and debug it at source level, including all dynamically loaded modules (DLLs), using the ARM Development Studio 5 (DS-5) toolchain.
September 11, 2013
Arm Cortex-A Processors and GCC Command Lines
Richard Earnshaw
This blog covers three areas of GCC’s command line options: CPU, floating point and SIMD (Single Instruction, Multiple Data) acceleration.
September 11, 2013
How do you make Java fast? Answer: Go down the pub!
Rod Crawford
It all started back in 2008, I'd been looking at what the Software Bill-of-Materials would be for an ARM-based Netbook. I'm a great fan of
JEOS (Just-Enough-OS)
to support the end users software…
September 11, 2013
NEVADA: NEON Visualization for ARM Developers
Guest Partner Blogger
Embedded devices have rapidly evolved in the past decade. Although these devices are capable of running advanced web and desktop applications with sufficient performance, further improving the software…
September 11, 2013
Using ARM NEON to accelerate Scalable Vector Graphics in webkit by up to 4x
Guest Partner Blogger
IntroductionIn the information era with its increased use of
mobile devices
to communicate and access information, web browsers constitute the central component to navigate through the vast amount of information…
September 11, 2013
ARM DS-5 Community Edition: Enabling the Android Developer Community
Vinod Krishnamoni
The need for quality professional tools for cross platform development when battling obscure software bugs and performance issues cannot be understated. With the
ARM® Development Studio 5 (DS-5™) Community…
September 11, 2013
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