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2011-05-23T05:23:37.720
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<code>frameworks/base/libs/surfaceflinger/tests/resize/resize.cpp</code> is a good place to start. But my version (Eclair from vendor) of the test app is out-dated, some <code>Surface</code> API has been moved to <code>SurfaceControl</code> and you have to: <code>SurfaceComposerClient::createSurface()</code> => <code>SurfaceControl</code> <code>SurfaceControl->getSurface()</code> => <code>Surface</code> Secondly use <code>SurfaceComposerClient::openTransaction()/closeTransaction()</code> to bound all transactions to SurfaceFlinger surface, eg: <code>Surface::lock()/unlockAndPost()</code> and <code>SurfaceControl::setLayer()/setSize()</code> Here're some sample codes (hope this compiles :P) <pre><code>sp<SurfaceComposerClient> client; sp<SurfaceControl> control; sp<Surface> surface; SurfaceID sid = 0; Surface::SurfaceInfo sinfo; // set up the thread-pool, needed for Binder sp<ProcessState> 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 done\n"); 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 done\n"); sleep(2); printf("setSize...\n"); client->openTransaction(); control->setSize(80, 120); client->closeTransaction(); printf("setSize done\n"); 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 done\n"); client->closeTransaction(); sleep(2); printf("setPosition...\n"); client->openTransaction(); control->setPosition(100, 100); client->closeTransaction(); printf("setPosition done\n"); sleep(2); // global transaction sometimes cannot trigger a redraw //client->closeGlobalTransaction(); printf("bye\n"); </code></pre>
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