Recently, I met the usage of reference of the pointer as the function parameter. I don't know what the purpose of it, and google the answer for it.
The 1st ref. well explains the difference between "pass by pointer" and "pass by reference of the pointer". The key is the default parameter passing of C/C++ is "pass by value", evne the pointer.
The 2nd ref. shows the situation which the reference of pointer come to solve elegantly
# the name is just a name, it will map to real .jar later
LOCAL_STATIC_JAVA_LIBRARIES := refJar1 \
refJar2
# here maps to actual .jar location
LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := refJar1 :libs/oooo.jar\
refJar2 :libs/xxxx.jar
For .so# Put .so to out/target/product/***/obj/lib $(shell cp $(wildcard $(LOCAL_PATH)/libs/armeabi/*.so) $(TARGET_OUT_INTERMEDIATE_LIBRARIES)) LOCAL_JNI_SHARED_LIBRARIES := libs/libxxxx
- 在apk裡打包進.so文件的方法: http://blog.csdn.net/androidboy365/article/details/6772890
- Android build system分析: http://blog.csdn.net/ccskyer/article/details/6122963
- android 內置app編譯方法及Android.mk中的系統變量說明: http://bbs.ancode.org/forum.php?mod=viewthread&tid=86
- Android NDK開發指南---Android.mk文件: http://hualang.iteye.com/blog/1140414
- Android Application, Android Libraries and Jar Libraries: http://devmaze.wordpress.com/2011/05/22/android-application-android-libraries-and-jar-libraries/
This post records how to setup the OpenGL programming guide source example environment on Mac.
/System/Library/Frameworks/{OpenGL,GLUT}.framework
In your OpenGL source files, include the following line
#include <OpenGL/gl.h> #include <OpenGL/glu.h> #include <GLUT/glut.h>
To make a GLUT application on the command line, use the following linker options:
-framework OpenGL -framework GLUT
For Ubuntu, you can refer this: Setting up an OpenGL development environment in Ubuntu Linux
--EOF--
$ ruby -e "$(curl -fsSkL raw.github.com/mxcl/homebrew/go)" // Add the Homebrew directory to your system path _export PATH=/usr/local/bin:$PATH_ to .bash_profile
$ brew install python --framework --universal // Add /usr/local/share/python to your system path export PATH=/usr/local/share/python:$PATH // change Lion's symlink to point at your new Python install $ cd /System/Library/Frameworks/Python.framework/Versions $ sudo rm Current $ ln -s /usr/local/Cellar/python/2.7.3/Frameworks/Python.framework/Versions/Current// To verify that your installation went as planned, type
which python at the command line. You should see /usr/local/bin/python in response
$ brew install git $ brew install opencv
$ brew install sdl sdl_image sdl_mixer sdl_ttf smpeg portmidi $ ARCHFLAGS="-arch i386 -arch x86_64" brew install PIL
$ sudo ln -s /usr/local/lib/python2.7/site-packages/cv.so /Library/Python/2.7/site-packages/cv.so $ sudo ln -s /usr/local/lib/python2.7/site-packages/PIL /Library/Python/2.7/site-packages/PIL $ sudo ln -s /usr/local/lib/python2.7/site-packages/cv2.so /Library/Python/2.7/site-packages/cv2.so $ sudo ln -s /usr/local/lib/python2.7/site-packages/cv.py /Library/Python/2.7/site-packages/cv.py
$ sudo easy_install pip
$ pip install numpy $ brew install gfortran $ pip install -e git+https://github.com/scipy/scipy#egg=scipy-dev $ pip install ipython
$ brew install mercurial
$ sudo pip install hg+http://bitbucket.org/pygame/pygame
$ pip install https://github.com/ingenuitas/SimpleCV/zipball/master
$ sudo easy_install readline
$ simplecv
--EOF--
Setting a priority under the default scheduling policy (SCHED_OTHER) isn't valid. The default Linux scheduling policy is SCHED_OTHER, which have no priority choice but a nice level to tweak inside the policy
SCHED_OTHER the standard round-robin time-sharing policy;
SCHED_BATCH for "batch" style execution of processes; and
SCHED_IDLE for running very low priority background jobs.
SCHED_FIFO a first-in, first-out policy
SCHED_RR a round-robin policy
SCHED_FIFO can't be preempted (context switched to another process) unless another process of higher priority shows up in the execution queue.
SCHED_RR can be preempted by a time quantum (delay given to a process to execute).
Conventional process's static priority = (120 + Nice value)