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[[Software/Android]]~ [[Software/Android/bc9]]~ [[Software/Android/bc9/userland(2/2)]]~ #contents *Setting up Android userland 1 [#m8e2cd60] It is assumed that you get and build open source version of Android source code. -[[Get source ‎(Android Open Source Project):http://source.android.com/download]] Before you proceed, please install and set up required applications and packages in advance to build Android source code. **Obtaining source [#u2f528f9] +Make an directory: $ mkdir mydroid $ cd mydroid +Init repo. This time we use master branch. (We are using source code checked out at March 20, 2009)~ $ repo init -u git://android.git.kernel.org/platform/manifest.git +Checkout source code. $ repo sync Make sure that following directories are exist: $ ls Makefile build external kernel system bionic dalvik frameworks packages bootable development hardware prebuilt **Adjustment for gumstix [#s6510c1b] In order to run Android on gumstix, we add small modifications on some source codes.~ (Some of these may be not necessary. Though we add these modification and succeeded.)~ &color(red){On April 2009 a lots of source code are merged from cupcake development branch to master branch. Due to this merging, further modifications may be required when you use current master branch source code.};~ (reference http://androidzaurus.seesaa.net/article/116995835.html )~ +~Disable pmem~ （reference　 http://groups.google.co.jp/group/android-embedded-japan/browse_thread/thread/bc549dab23f6cbac#）~ pmem is a function to allocate a large continuous physical memory region.~ When pmem is enabled, Android won't work on gumstix. ~/mydroid/system/core/init/devices.c So modify this file as follows: diff -u devices.c.original devices.c --- devices.c.original 2009-03-30 19:05:50.000000000 +0900 +++ devices.c 2009-03-11 19:13:54.000000000 +0900 @@ -109,9 +109,9 @@ { "/dev/eac", 0660, AID_ROOT, AID_AUDIO, 0 }, { "/dev/cam", 0660, AID_ROOT, AID_CAMERA, 0 }, { "/dev/pmem", 0660, AID_SYSTEM, AID_GRAPHICS, 0 }, - { "/dev/pmem_gpu", 0660, AID_SYSTEM, AID_GRAPHICS, 1 }, - { "/dev/pmem_adsp", 0660, AID_SYSTEM, AID_AUDIO, 1 }, - { "/dev/pmem_camera", 0660, AID_SYSTEM, AID_CAMERA, 1 }, + { "/dev/pmem_gpu", 0660, AID_SYSTEM, AID_GRAPHICS, 0 }, + { "/dev/pmem_adsp", 0660, AID_SYSTEM, AID_AUDIO, 0 }, + { "/dev/pmem_camera", 0660, AID_SYSTEM, AID_CAMERA, 0 }, { "/dev/oncrpc/", 0660, AID_ROOT, AID_SYSTEM, 1 }, { "/dev/adsp/", 0660, AID_SYSTEM, AID_AUDIO, 1 }, { "/dev/mt9t013", 0660, AID_SYSTEM, AID_SYSTEM, 0 }, +~Fixing drawing position of Boot animation~ To fix position of Android's logo and robot blinking animation on start up, add following modifications.~ (reference https://review.source.android.com/Gerrit#change,1552 ) ~ -Modifying source code~ ~/mydroid/frameworks/base/libs/surfaceflinger/BootAnimation.cpp Modify source code as follows: diff -u BootAnimation.cpp.original BootAnimation.cpp --- BootAnimation.cpp.original 2009-03-30 19:53:25.000000000 +0900 +++ BootAnimation.cpp 2009-03-25 20:59:04.000000000 +0900 @@ -196,6 +196,7 @@ return r; } +static const int RIGHT_MARGIN = 112; bool BootAnimation::android() { - initTexture(&mAndroid[0], mAssets, "images/android_320x480.png"); + initTexture(&mAndroid[0], mAssets, "images/android_480x272.png"); initTexture(&mAndroid[1], mAssets, "images/boot_robot.png"); initTexture(&mAndroid[2], mAssets, "images/boot_robot_glow.png"); @@ -219,24 +221,28 @@ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); const int steps = 8; + int x = (mWidth - mAndroid[0].w)/2; + int y = (mHeight - mAndroid[0].h)/2; + x = (x < 0) ? 0 : x; + y = (y < 0) ? 0 : y; for (int i=1 ; i<steps ; i++) { float fade = i / float(steps); glColor4f(1, 1, 1, fade*fade); glClear(GL_COLOR_BUFFER_BIT); - glDrawTexiOES(0, 0, 0, mAndroid[0].w, mAndroid[0].h); + glDrawTexiOES(x, y, 0, mAndroid[0].w, mAndroid[0].h); eglSwapBuffers(mDisplay, mSurface); } // draw last frame glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); glDisable(GL_BLEND); - glDrawTexiOES(0, 0, 0, mAndroid[0].w, mAndroid[0].h); + glDrawTexiOES(x, y, 0, mAndroid[0].w, mAndroid[0].h); eglSwapBuffers(mDisplay, mSurface); // update rect for the robot - const int x = mWidth - mAndroid[1].w - 33; - const int y = (mHeight - mAndroid[1].h)/2 - 1; + x = mWidth - (mWidth - mAndroid[0].w)/2 - mAndroid[1].w - RIGHT_MARGIN; + y = (mHeight - mAndroid[1].h)/2 - 1; const Rect updateRect(x, y, x+mAndroid[1].w, y+mAndroid[1].h); // draw and update only what we need -Replace image file~ From the image file used in BootAnimation.cpp, ~/mydroid/frameworks/base/core/res/assets/images/android_320x480.png We made an image file android_480x272.png, fitted to gumstix LCD's resolution.~ Put this android_480x272.png file in same directory as android_320x480.png.~ &ref(android_480x272.png);~ +~Modifying key event check ~ (reference http://ozetchi.cocolog-nifty.com/amerika/2009/02/post-6a82.html ) ~ ~mydroid/frameworks/base/services/java/com/android/server/KeyInputQueue.java Modify this file as follows: diff -u KeyInputQueue.java.original KeyInputQueue.java --- KeyInputQueue.java.original 2009-03-30 19:23:51.000000000 +0900 +++ KeyInputQueue.java 2009-03-11 12:31:56.000000000 +0900 @@ -247,7 +247,7 @@ } if (!send) { - continue; +// continue; } synchronized (mFirst) { This modification is for accepting key input event certainly.~ **build [#w3f127a3] After you finish those modifications, move to mydroid directory and build: $ cd ~/mydroid $ make [[Software/Android/bc9/userland(2/2)]] --------------------------------------- RIGHT:by Satoshi OTSUKA
