frameworks/base/libs/surfaceflinger/tests/resize/resize.cpp 是個(gè)好地方。 但是我的測(cè)試應(yīng)用程序版本( 來(lái)自供應(yīng)商的Eclair ) 過(guò)時(shí)了，有些 Surface API已經(jīng)轉(zhuǎn)移到 SurfaceControl，你必須：

SurfaceComposerClient::createSurface() => SurfaceControl

SurfaceControl->getSurface() => Surface

第二使用 SurfaceComposerClient::openTransaction()/closeTransaction() 將所有事務(wù)綁定到SurfaceFlinger表面，例如：

Surface::lock()/unlockAndPost() 和 SurfaceControl::setLayer()/setSize()

下面是一些示例代碼( 希望編譯：p )sp client;

sp control;

sp surface;

SurfaceID sid = 0;

Surface::SurfaceInfo sinfo;

//set up the thread-pool, needed for Binder

sp proc(ProcessState::self());

ProcessState::self()->startThreadPool();

client = new SurfaceComposerClient();

control = client->createSurface(getpid(), sid, 160, 240, PIXEL_FORMAT_RGB_565);

surface = control->getSurface();

//global transaction sometimes cannot trigger a redraw

//client->openGlobalTransaction();

printf("setLayer...n");

client->openTransaction();

control->setLayer(100000);

client->closeTransaction();

printf("setLayer donen");

printf("memset 0xF800...n");

client->openTransaction();

surface->lock(&sinfo);

android_memset16((uint16_t*)sinfo.bits, 0xF800, sinfo.s*pfInfo.bytesPerPixel*sinfo.h);

surface->unlockAndPost();

client->closeTransaction();

printf("memset 0xF800 donen");

sleep(2);

printf("setSize...n");

client->openTransaction();

control->setSize(80, 120);

client->closeTransaction();

printf("setSize donen");

sleep(2);

printf("memset 0x07E0...n");

client->openTransaction();

surface->lock(&sinfo);

android_memset16((uint16_t*)sinfo.bits, 0x07E0, sinfo.s*pfInfo.bytesPerPixel*sinfo.h);

surface->unlockAndPost();

printf("memset 0x07E0 donen");

client->closeTransaction();

sleep(2);

printf("setPosition...n");

client->openTransaction();

control->setPosition(100, 100);

client->closeTransaction();

printf("setPosition donen");

sleep(2);

//global transaction sometimes cannot trigger a redraw

//client->closeGlobalTransaction();

printf("byen");

總結(jié)

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