Merge "Integrate ImageProcessing test into test framework http://b/issue?id=5274365 Change-Id: I7949b4114dcab17d895d04755df5df2bd5a576a3"
diff --git a/include/private/surfaceflinger/LayerState.h b/include/private/surfaceflinger/LayerState.h
index d2fed41..3eb5c99 100644
--- a/include/private/surfaceflinger/LayerState.h
+++ b/include/private/surfaceflinger/LayerState.h
@@ -54,8 +54,8 @@
             };
             SurfaceID       surface;
             uint32_t        what;
-            int32_t         x;
-            int32_t         y;
+            float           x;
+            float           y;
             uint32_t        z;
             uint32_t        w;
             uint32_t        h;
diff --git a/include/surfaceflinger/SurfaceComposerClient.h b/include/surfaceflinger/SurfaceComposerClient.h
index 7fbbfb2..ace0735 100644
--- a/include/surfaceflinger/SurfaceComposerClient.h
+++ b/include/surfaceflinger/SurfaceComposerClient.h
@@ -145,7 +145,7 @@
     status_t    setAlpha(SurfaceID id, float alpha=1.0f);
     status_t    setFreezeTint(SurfaceID id, uint32_t tint);
     status_t    setMatrix(SurfaceID id, float dsdx, float dtdx, float dsdy, float dtdy);
-    status_t    setPosition(SurfaceID id, int32_t x, int32_t y);
+    status_t    setPosition(SurfaceID id, float x, float y);
     status_t    setSize(SurfaceID id, uint32_t w, uint32_t h);
     status_t    destroySurface(SurfaceID sid);
 
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 392193b..5ccf87f 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -78,12 +78,8 @@
 // conditionals don't get stripped...  but that is probably what we want.
 #if !LOG_NDEBUG
 static const char *kReturnStrings[] = {
-#if 1 /* TODO: error update strings */
-    "unknown",
-#else
+    "BR_ERROR",
     "BR_OK",
-    "BR_TIMEOUT",
-    "BR_WAKEUP",
     "BR_TRANSACTION",
     "BR_REPLY",
     "BR_ACQUIRE_RESULT",
@@ -94,25 +90,19 @@
     "BR_RELEASE",
     "BR_DECREFS",
     "BR_ATTEMPT_ACQUIRE",
-    "BR_EVENT_OCCURRED",
     "BR_NOOP",
     "BR_SPAWN_LOOPER",
     "BR_FINISHED",
     "BR_DEAD_BINDER",
-    "BR_CLEAR_DEATH_NOTIFICATION_DONE"
-#endif
+    "BR_CLEAR_DEATH_NOTIFICATION_DONE",
+    "BR_FAILED_REPLY"
 };
 
 static const char *kCommandStrings[] = {
-#if 1 /* TODO: error update strings */
-    "unknown",
-#else
-    "BC_NOOP",
     "BC_TRANSACTION",
     "BC_REPLY",
     "BC_ACQUIRE_RESULT",
     "BC_FREE_BUFFER",
-    "BC_TRANSACTION_COMPLETE",
     "BC_INCREFS",
     "BC_ACQUIRE",
     "BC_RELEASE",
@@ -120,18 +110,12 @@
     "BC_INCREFS_DONE",
     "BC_ACQUIRE_DONE",
     "BC_ATTEMPT_ACQUIRE",
-    "BC_RETRIEVE_ROOT_OBJECT",
-    "BC_SET_THREAD_ENTRY",
     "BC_REGISTER_LOOPER",
     "BC_ENTER_LOOPER",
     "BC_EXIT_LOOPER",
-    "BC_SYNC",
-    "BC_STOP_PROCESS",
-    "BC_STOP_SELF",
     "BC_REQUEST_DEATH_NOTIFICATION",
     "BC_CLEAR_DEATH_NOTIFICATION",
     "BC_DEAD_BINDER_DONE"
-#endif
 };
 
 static const char* getReturnString(size_t idx)
@@ -154,30 +138,36 @@
 {
     const binder_transaction_data* btd =
         (const binder_transaction_data*)data;
-    out << "target=" << btd->target.ptr << " (cookie " << btd->cookie << ")" << endl
+    if (btd->target.handle < 1024) {
+        /* want to print descriptors in decimal; guess based on value */
+        out << "target.desc=" << btd->target.handle;
+    } else {
+        out << "target.ptr=" << btd->target.ptr;
+    }
+    out << " (cookie " << btd->cookie << ")" << endl
         << "code=" << TypeCode(btd->code) << ", flags=" << (void*)btd->flags << endl
         << "data=" << btd->data.ptr.buffer << " (" << (void*)btd->data_size
         << " bytes)" << endl
         << "offsets=" << btd->data.ptr.offsets << " (" << (void*)btd->offsets_size
-        << " bytes)" << endl;
+        << " bytes)";
     return btd+1;
 }
 
 static const void* printReturnCommand(TextOutput& out, const void* _cmd)
 {
-    static const int32_t N = sizeof(kReturnStrings)/sizeof(kReturnStrings[0]);
-    
+    static const size_t N = sizeof(kReturnStrings)/sizeof(kReturnStrings[0]);
     const int32_t* cmd = (const int32_t*)_cmd;
     int32_t code = *cmd++;
-    if (code == BR_ERROR) {
+    size_t cmdIndex = code & 0xff;
+    if (code == (int32_t) BR_ERROR) {
         out << "BR_ERROR: " << (void*)(*cmd++) << endl;
         return cmd;
-    } else if (code < 0 || code >= N) {
+    } else if (cmdIndex >= N) {
         out << "Unknown reply: " << code << endl;
         return cmd;
     }
+    out << kReturnStrings[cmdIndex];
     
-    out << kReturnStrings[code];
     switch (code) {
         case BR_TRANSACTION:
         case BR_REPLY: {
@@ -213,6 +203,11 @@
             const int32_t c = *cmd++;
             out << ": death cookie " << (void*)c;
         } break;
+
+        default:
+            // no details to show for: BR_OK, BR_DEAD_REPLY,
+            // BR_TRANSACTION_COMPLETE, BR_FINISHED
+            break;
     }
     
     out << endl;
@@ -221,16 +216,17 @@
 
 static const void* printCommand(TextOutput& out, const void* _cmd)
 {
-    static const int32_t N = sizeof(kCommandStrings)/sizeof(kCommandStrings[0]);
-    
+    static const size_t N = sizeof(kCommandStrings)/sizeof(kCommandStrings[0]);
     const int32_t* cmd = (const int32_t*)_cmd;
     int32_t code = *cmd++;
-    if (code < 0 || code >= N) {
+    size_t cmdIndex = code & 0xff;
+
+    if (cmdIndex >= N) {
         out << "Unknown command: " << code << endl;
         return cmd;
     }
-    
-    out << kCommandStrings[code];
+    out << kCommandStrings[cmdIndex];
+
     switch (code) {
         case BC_TRANSACTION:
         case BC_REPLY: {
@@ -254,7 +250,7 @@
         case BC_RELEASE:
         case BC_DECREFS: {
             const int32_t d = *cmd++;
-            out << ": descriptor=" << (void*)d;
+            out << ": desc=" << d;
         } break;
     
         case BC_INCREFS_DONE:
@@ -267,7 +263,7 @@
         case BC_ATTEMPT_ACQUIRE: {
             const int32_t p = *cmd++;
             const int32_t d = *cmd++;
-            out << ": decriptor=" << (void*)d << ", pri=" << p;
+            out << ": desc=" << d << ", pri=" << p;
         } break;
         
         case BC_REQUEST_DEATH_NOTIFICATION:
@@ -281,6 +277,11 @@
             const int32_t c = *cmd++;
             out << ": death cookie " << (void*)c;
         } break;
+
+        default:
+            // no details to show for: BC_REGISTER_LOOPER, BC_ENTER_LOOPER,
+            // BC_EXIT_LOOPER
+            break;
     }
     
     out << endl;
@@ -592,6 +593,7 @@
 
 status_t IPCThreadState::attemptIncStrongHandle(int32_t handle)
 {
+    LOG_REMOTEREFS("IPCThreadState::attemptIncStrongHandle(%d)\n", handle);
     mOut.writeInt32(BC_ATTEMPT_ACQUIRE);
     mOut.writeInt32(0); // xxx was thread priority
     mOut.writeInt32(handle);
@@ -772,7 +774,7 @@
     } else {
         bwr.read_size = 0;
     }
-    
+
     IF_LOG_COMMANDS() {
         TextOutput::Bundle _b(alog);
         if (outAvail != 0) {
@@ -789,7 +791,7 @@
     
     // Return immediately if there is nothing to do.
     if ((bwr.write_size == 0) && (bwr.read_size == 0)) return NO_ERROR;
-    
+
     bwr.write_consumed = 0;
     bwr.read_consumed = 0;
     status_t err;
@@ -809,7 +811,7 @@
             alog << "Finished read/write, write size = " << mOut.dataSize() << endl;
         }
     } while (err == -EINTR);
-    
+
     IF_LOG_COMMANDS() {
         alog << "Our err: " << (void*)err << ", write consumed: "
             << bwr.write_consumed << " (of " << mOut.dataSize()
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 3b0ffea..00a4bf6 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -102,7 +102,7 @@
 public:
 
     status_t setPosition(const sp<SurfaceComposerClient>& client, SurfaceID id,
-            int32_t x, int32_t y);
+            float x, float y);
     status_t setSize(const sp<SurfaceComposerClient>& client, SurfaceID id,
             uint32_t w, uint32_t h);
     status_t setLayer(const sp<SurfaceComposerClient>& client, SurfaceID id,
@@ -161,7 +161,7 @@
 }
 
 status_t Composer::setPosition(const sp<SurfaceComposerClient>& client,
-        SurfaceID id, int32_t x, int32_t y) {
+        SurfaceID id, float x, float y) {
     Mutex::Autolock _l(mLock);
     layer_state_t* s = getLayerStateLocked(client, id);
     if (!s)
@@ -372,7 +372,7 @@
     return getComposer().setFreezeTint(this, id, tint);
 }
 
-status_t SurfaceComposerClient::setPosition(SurfaceID id, int32_t x, int32_t y) {
+status_t SurfaceComposerClient::setPosition(SurfaceID id, float x, float y) {
     return getComposer().setPosition(this, id, x, y);
 }
 
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index 710ef94..0bee0f1 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -219,9 +219,12 @@
     if (i < 0) {
         return i;
     }
-    mSurfaceTexture->queueBuffer(i, timestamp,
+    status_t err = mSurfaceTexture->queueBuffer(i, timestamp,
             &mDefaultWidth, &mDefaultHeight, &mTransformHint);
-    return OK;
+    if (err != OK)  {
+        LOGE("queueBuffer: error queuing buffer to SurfaceTexture, %d", err);
+    }
+    return err;
 }
 
 int SurfaceTextureClient::query(int what, int* value) const {
diff --git a/libs/gui/tests/Android.mk b/libs/gui/tests/Android.mk
index 0308af3..55ac133 100644
--- a/libs/gui/tests/Android.mk
+++ b/libs/gui/tests/Android.mk
@@ -1,4 +1,4 @@
-# Build the unit tests.
+# Build the unit tests,
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
@@ -22,17 +22,15 @@
 	libui \
 	libutils \
 
-LOCAL_STATIC_LIBRARIES := \
-	libgtest \
-	libgtest_main \
-
 LOCAL_C_INCLUDES := \
     bionic \
     bionic/libstdc++/include \
     external/gtest/include \
     external/stlport/stlport \
 
-include $(BUILD_EXECUTABLE)
+# Build the binary to $(TARGET_OUT_DATA_NATIVE_TESTS)/$(LOCAL_MODULE)
+# to integrate with auto-test framework.
+include $(BUILD_NATIVE_TEST)
 
 # Include subdirectory makefiles
 # ============================================================
diff --git a/libs/gui/tests/SurfaceTexture_test.cpp b/libs/gui/tests/SurfaceTexture_test.cpp
index 44babcf..b8bc454 100644
--- a/libs/gui/tests/SurfaceTexture_test.cpp
+++ b/libs/gui/tests/SurfaceTexture_test.cpp
@@ -974,8 +974,6 @@
 
     eglSwapBuffers(mEglDisplay, stcEglSurface);
 
-    eglDestroySurface(mEglDisplay, stcEglSurface);
-
     // Do the consumer side of things
     EXPECT_TRUE(eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface,
             mEglContext));
@@ -985,6 +983,10 @@
 
     mST->updateTexImage();
 
+    // We must wait until updateTexImage has been called to destroy the
+    // EGLSurface because we're in synchronous mode.
+    eglDestroySurface(mEglDisplay, stcEglSurface);
+
     glClearColor(0.2, 0.2, 0.2, 0.2);
     glClear(GL_COLOR_BUFFER_BIT);
 
diff --git a/libs/utils/Static.cpp b/libs/utils/Static.cpp
index 4dfa578..ceca435 100644
--- a/libs/utils/Static.cpp
+++ b/libs/utils/Static.cpp
@@ -56,7 +56,9 @@
 protected:
     virtual status_t writeLines(const struct iovec& vec, size_t N)
     {
-        android_writevLog(&vec, N);
+        //android_writevLog(&vec, N);       <-- this is now a no-op
+        if (N != 1) LOGI("WARNING: writeLines N=%d\n", N);
+        LOGI("%.*s", vec.iov_len, (const char*) vec.iov_base);
         return NO_ERROR;
     }
 };
diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index e94e50e..325193c 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp
@@ -23,6 +23,7 @@
 #include <limits.h>
 
 #include <cutils/log.h>
+#include <cutils/properties.h>
 
 #include <EGL/egl.h>
 
@@ -45,6 +46,39 @@
 
 ANDROID_SINGLETON_STATIC_INSTANCE( Loader )
 
+/* This function is called to check whether we run inside the emulator,
+ * and if this is the case whether GLES GPU emulation is supported.
+ *
+ * Returned values are:
+ *  -1   -> not running inside the emulator
+ *   0   -> running inside the emulator, but GPU emulation not supported
+ *   1   -> running inside the emulator, GPU emulation is supported
+ *          through the "emulation" config.
+ */
+static int
+checkGlesEmulationStatus(void)
+{
+    /* We're going to check for the following kernel parameters:
+     *
+     *    qemu=1                      -> tells us that we run inside the emulator
+     *    android.qemu.gles=<number>  -> tells us the GLES GPU emulation status
+     *
+     * Note that we will return <number> if we find it. This let us support
+     * more additionnal emulation modes in the future.
+     */
+    char  prop[PROPERTY_VALUE_MAX];
+    int   result = -1;
+
+    /* First, check for qemu=1 */
+    property_get("ro.kernel.qemu",prop,"0");
+    if (atoi(prop) != 1)
+        return -1;
+
+    /* We are in the emulator, get GPU status value */
+    property_get("ro.kernel.qemu.gles",prop,"0");
+    return atoi(prop);
+}
+
 // ----------------------------------------------------------------------------
 
 Loader::driver_t::driver_t(void* gles) 
@@ -94,6 +128,15 @@
 {
     char line[256];
     char tag[256];
+
+    /* Special case for GLES emulation */
+    if (checkGlesEmulationStatus() == 0) {
+        LOGD("Emulator without GPU support detected. Fallback to software renderer.");
+        gConfig.add( entry_t(0, 0, "android") );
+        return;
+    }
+
+    /* Otherwise, use egl.cfg */
     FILE* cfg = fopen("/system/lib/egl/egl.cfg", "r");
     if (cfg == NULL) {
         // default config
diff --git a/opengl/libs/EGL/egl.cpp b/opengl/libs/EGL/egl.cpp
index ddad2d3..1e43195 100644
--- a/opengl/libs/EGL/egl.cpp
+++ b/opengl/libs/EGL/egl.cpp
@@ -95,12 +95,12 @@
         if (fgets(cmdline, sizeof(cmdline) - 1, file))
         {
             if (!strcmp(value, cmdline))
-                sEGLTraceLevel = 1;
+                gEGLDebugLevel = 1;
         }
         fclose(file);
     }
 
-    if (sEGLTraceLevel > 0)
+    if (gEGLDebugLevel > 0)
     {
         property_get("debug.egl.debug_port", value, "5039");
         const unsigned short port = (unsigned short)atoi(value);
@@ -117,7 +117,7 @@
     if (sEGLTraceLevel > 0) {
         setGlTraceThreadSpecific(value);
         setGlThreadSpecific(&gHooksTrace);
-    } else if (sEGLTraceLevel > 0 && value != &gHooksNoContext) {
+    } else if (gEGLDebugLevel > 0 && value != &gHooksNoContext) {
         setGlTraceThreadSpecific(value);
         setGlThreadSpecific(&gHooksDebug);
     } else {
@@ -148,10 +148,13 @@
     if (egl_tls_t::logNoContextCall()) {
         LOGE("call to OpenGL ES API with no current context "
              "(logged once per thread)");
-        LOGE("call stack before error:");
-        CallStack stack;
-        stack.update();
-        stack.dump();
+        char value[PROPERTY_VALUE_MAX];
+        property_get("debug.egl.callstack", value, "0");
+        if (atoi(value)) {
+            CallStack stack;
+            stack.update();
+            stack.dump();
+        }
     }
     return 0;
 }
diff --git a/opengl/libs/EGL/egl_tls.cpp b/opengl/libs/EGL/egl_tls.cpp
index 961a61e..f3c8d2c 100644
--- a/opengl/libs/EGL/egl_tls.cpp
+++ b/opengl/libs/EGL/egl_tls.cpp
@@ -14,9 +14,13 @@
  ** limitations under the License.
  */
 
+#include <stdlib.h>
 #include <pthread.h>
 
 #include <cutils/log.h>
+#include <cutils/properties.h>
+
+#include <utils/CallStack.h>
 
 #include <EGL/egl.h>
 
@@ -69,6 +73,13 @@
     if (tls->error != error) {
         LOGE("%s:%d error %x (%s)", caller, line, error, egl_strerror(error));
         tls->error = error;
+        char value[PROPERTY_VALUE_MAX];
+        property_get("debug.egl.callstack", value, "0");
+        if (atoi(value)) {
+            CallStack stack;
+            stack.update();
+            stack.dump();
+        }
     }
 }
 
diff --git a/opengl/libs/GLES2_dbg/src/dbgcontext.cpp b/opengl/libs/GLES2_dbg/src/dbgcontext.cpp
index ff9be3c..9e77665 100644
--- a/opengl/libs/GLES2_dbg/src/dbgcontext.cpp
+++ b/opengl/libs/GLES2_dbg/src/dbgcontext.cpp
@@ -88,7 +88,7 @@
     msg.set_arg1(MAX_COMBINED_TEXTURE_IMAGE_UNITS);
     Send(msg, cmd);
 
-    *(DbgContext **)pthread_getspecific(dbgEGLThreadLocalStorageKey) = dbg;
+    pthread_setspecific(dbgEGLThreadLocalStorageKey, dbg);
     return dbg;
 }
 
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 7d1bdf0..0ff1cce 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -108,8 +108,21 @@
 }
 
 status_t HWComposer::release() const {
-    int err = mHwc->set(mHwc, NULL, NULL, NULL);
-    return (status_t)err;
+    if (mHwc) {
+        int err = mHwc->set(mHwc, NULL, NULL, NULL);
+        return (status_t)err;
+    }
+    return NO_ERROR;
+}
+
+status_t HWComposer::disable() {
+    if (mHwc) {
+        free(mList);
+        mList = NULL;
+        int err = mHwc->prepare(mHwc, NULL);
+        return (status_t)err;
+    }
+    return NO_ERROR;
 }
 
 size_t HWComposer::getNumLayers() const {
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 983898a..77c1a4b 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -50,6 +50,9 @@
     // Asks the HAL what it can do
     status_t prepare() const;
 
+    // disable hwc until next createWorkList
+    status_t disable();
+
     // commits the list
     status_t commit() const;
 
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index f8925b8..edbc7b0 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -212,6 +212,24 @@
     } else {
         hwcl->transform = finalTransform;
     }
+
+    if (isCropped()) {
+        hwcl->sourceCrop.left   = mCurrentCrop.left;
+        hwcl->sourceCrop.top    = mCurrentCrop.top;
+        hwcl->sourceCrop.right  = mCurrentCrop.right;
+        hwcl->sourceCrop.bottom = mCurrentCrop.bottom;
+    } else {
+        const sp<GraphicBuffer>& buffer(mActiveBuffer);
+        hwcl->sourceCrop.left   = 0;
+        hwcl->sourceCrop.top    = 0;
+        if (buffer != NULL) {
+            hwcl->sourceCrop.right  = buffer->width;
+            hwcl->sourceCrop.bottom = buffer->height;
+        } else {
+            hwcl->sourceCrop.right  = mTransformedBounds.width();
+            hwcl->sourceCrop.bottom = mTransformedBounds.height();
+        }
+    }
 }
 
 void Layer::setPerFrameData(hwc_layer_t* hwcl) {
@@ -225,23 +243,6 @@
     } else {
         hwcl->handle = buffer->handle;
     }
-
-    if (isCropped()) {
-        hwcl->sourceCrop.left   = mCurrentCrop.left;
-        hwcl->sourceCrop.top    = mCurrentCrop.top;
-        hwcl->sourceCrop.right  = mCurrentCrop.right;
-        hwcl->sourceCrop.bottom = mCurrentCrop.bottom;
-    } else {
-        hwcl->sourceCrop.left   = 0;
-        hwcl->sourceCrop.top    = 0;
-        if (buffer != NULL) {
-            hwcl->sourceCrop.right  = buffer->width;
-            hwcl->sourceCrop.bottom = buffer->height;
-        } else {
-            hwcl->sourceCrop.right  = mTransformedBounds.width();
-            hwcl->sourceCrop.bottom = mTransformedBounds.height();
-        }
-    }
 }
 
 void Layer::onDraw(const Region& clip) const
@@ -416,8 +417,7 @@
             return;
         }
 
-        mActiveBuffer = mSurfaceTexture->getCurrentBuffer();
-        mSurfaceTexture->getTransformMatrix(mTextureMatrix);
+        sp<GraphicBuffer> newFrontBuffer(mSurfaceTexture->getCurrentBuffer());
 
         const Rect crop(mSurfaceTexture->getCurrentCrop());
         const uint32_t transform(mSurfaceTexture->getCurrentTransform());
@@ -432,7 +432,23 @@
             mFlinger->invalidateHwcGeometry();
         }
 
-        mCurrentOpacity = getOpacityForFormat(mActiveBuffer->format);
+        GLfloat textureMatrix[16];
+        mSurfaceTexture->getTransformMatrix(textureMatrix);
+        if (memcmp(textureMatrix, mTextureMatrix, sizeof(textureMatrix))) {
+            memcpy(mTextureMatrix, textureMatrix, sizeof(textureMatrix));
+            mFlinger->invalidateHwcGeometry();
+        }
+
+        uint32_t bufWidth  = newFrontBuffer->getWidth();
+        uint32_t bufHeight = newFrontBuffer->getHeight();
+        if (mActiveBuffer != NULL) {
+            if (bufWidth != uint32_t(mActiveBuffer->width) ||
+                bufHeight != uint32_t(mActiveBuffer->height)) {
+                mFlinger->invalidateHwcGeometry();
+            }
+        }
+
+        mCurrentOpacity = getOpacityForFormat(newFrontBuffer->format);
         if (oldOpacity != isOpaque()) {
             recomputeVisibleRegions = true;
         }
@@ -446,15 +462,14 @@
         // FIXME: mPostedDirtyRegion = dirty & bounds
         mPostedDirtyRegion.set(front.w, front.h);
 
+        // update active buffer
+        mActiveBuffer = newFrontBuffer;
 
         if ((front.w != front.requested_w) ||
             (front.h != front.requested_h))
         {
             // check that we received a buffer of the right size
             // (Take the buffer's orientation into account)
-            sp<GraphicBuffer> newFrontBuffer(mActiveBuffer);
-            uint32_t bufWidth  = newFrontBuffer->getWidth();
-            uint32_t bufHeight = newFrontBuffer->getHeight();
             if (mCurrentTransform & Transform::ROT_90) {
                 swap(bufWidth, bufHeight);
             }
diff --git a/services/surfaceflinger/LayerBase.cpp b/services/surfaceflinger/LayerBase.cpp
index 4cc245a..603fb60 100644
--- a/services/surfaceflinger/LayerBase.cpp
+++ b/services/surfaceflinger/LayerBase.cpp
@@ -45,7 +45,6 @@
       mFlinger(flinger), mFiltering(false),
       mNeedsFiltering(false),
       mOrientation(0),
-      mLeft(0), mTop(0),
       mTransactionFlags(0),
       mPremultipliedAlpha(true), mName("unnamed"), mDebug(false),
       mInvalidate(0)
@@ -119,7 +118,7 @@
     return android_atomic_or(flags, &mTransactionFlags);
 }
 
-bool LayerBase::setPosition(int32_t x, int32_t y) {
+bool LayerBase::setPosition(float x, float y) {
     if (mCurrentState.transform.tx() == x && mCurrentState.transform.ty() == y)
         return false;
     mCurrentState.sequence++;
@@ -259,8 +258,6 @@
     mOrientation = tr.getOrientation();
     mTransform = tr;
     mTransformedBounds = tr.makeBounds(w, h);
-    mLeft = tr.tx();
-    mTop  = tr.ty();
 }
 
 void LayerBase::lockPageFlip(bool& recomputeVisibleRegions)
@@ -335,15 +332,16 @@
             reinterpret_cast<hwc_rect_t const *>(
                     visibleRegionScreen.getArray(
                             &hwcl->visibleRegionScreen.numRects));
+
+    hwcl->sourceCrop.left   = 0;
+    hwcl->sourceCrop.top    = 0;
+    hwcl->sourceCrop.right  = mTransformedBounds.width();
+    hwcl->sourceCrop.bottom = mTransformedBounds.height();
 }
 
 void LayerBase::setPerFrameData(hwc_layer_t* hwcl) {
     hwcl->compositionType = HWC_FRAMEBUFFER;
     hwcl->handle = NULL;
-    hwcl->sourceCrop.left   = 0;
-    hwcl->sourceCrop.top    = 0;
-    hwcl->sourceCrop.right  = mTransformedBounds.width();
-    hwcl->sourceCrop.bottom = mTransformedBounds.height();
 }
 
 void LayerBase::setFiltering(bool filtering)
@@ -476,10 +474,10 @@
     snprintf(buffer, SIZE,
             "+ %s %p\n"
             "      "
-            "z=%9d, pos=(%4d,%4d), size=(%4d,%4d), "
+            "z=%9d, pos=(%g,%g), size=(%4d,%4d), "
             "isOpaque=%1d, needsDithering=%1d, invalidate=%1d, "
             "alpha=0x%02x, flags=0x%08x, tr=[%.2f, %.2f][%.2f, %.2f]\n",
-            getTypeId(), this, s.z, tx(), ty(), s.w, s.h,
+            getTypeId(), this, s.z, s.transform.tx(), s.transform.ty(), s.w, s.h,
             isOpaque(), needsDithering(), contentDirty,
             s.alpha, s.flags,
             s.transform[0][0], s.transform[0][1],
diff --git a/services/surfaceflinger/LayerBase.h b/services/surfaceflinger/LayerBase.h
index 2cd3a94..d20f06a 100644
--- a/services/surfaceflinger/LayerBase.h
+++ b/services/surfaceflinger/LayerBase.h
@@ -84,7 +84,7 @@
             String8 getName() const;
 
             // modify current state
-            bool setPosition(int32_t x, int32_t y);
+            bool setPosition(float x, float y);
             bool setLayer(uint32_t z);
             bool setSize(uint32_t w, uint32_t h);
             bool setAlpha(uint8_t alpha);
@@ -217,8 +217,6 @@
     inline  State&          currentState()          { return mCurrentState; }
 
     int32_t  getOrientation() const { return mOrientation; }
-    int  tx() const             { return mLeft; }
-    int  ty() const             { return mTop; }
     
 protected:
     const GraphicPlane& graphicPlane(int dpy) const;
@@ -250,8 +248,6 @@
                 Transform       mTransform;
                 GLfloat         mVertices[4][2];
                 Rect            mTransformedBounds;
-                int             mLeft;
-                int             mTop;
             
                 // these are protected by an external lock
                 State           mCurrentState;
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 598220f..4a3a8ea 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -817,6 +817,20 @@
     mHwWorkListDirty = false;
     HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer());
     if (hwc.initCheck() == NO_ERROR) {
+
+        const DisplayHardware& hw(graphicPlane(0).displayHardware());
+        uint32_t flags = hw.getFlags();
+        if ((flags & DisplayHardware::SWAP_RECTANGLE) ||
+            (flags & DisplayHardware::BUFFER_PRESERVED))
+        {
+            // we need to redraw everything (the whole screen)
+            // NOTE: we could be more subtle here and redraw only
+            // the area which will end-up in an overlay. But since this
+            // shouldn't happen often, we invalidate everything.
+            mDirtyRegion.set(hw.bounds());
+            mInvalidRegion = mDirtyRegion;
+        }
+
         const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ);
         const size_t count = currentLayers.size();
         hwc.createWorkList(count);
@@ -2099,6 +2113,12 @@
         // we're already off
         return NO_ERROR;
     }
+
+    // turn off hwc while we're doing the animation
+    hw.getHwComposer().disable();
+    // and make sure to turn it back on (if needed) next time we compose
+    invalidateHwcGeometry();
+
     if (mode & ISurfaceComposer::eElectronBeamAnimationOff) {
         electronBeamOffAnimationImplLocked();
     }
diff --git a/services/surfaceflinger/Transform.cpp b/services/surfaceflinger/Transform.cpp
index 05b7527..ba345ce 100644
--- a/services/surfaceflinger/Transform.cpp
+++ b/services/surfaceflinger/Transform.cpp
@@ -91,12 +91,12 @@
     return type() > TRANSLATE;
 }
 
-int Transform::tx() const {
-    return floorf(mMatrix[2][0] + 0.5f);
+float Transform::tx() const {
+    return mMatrix[2][0];
 }
 
-int Transform::ty() const {
-    return floorf(mMatrix[2][1] + 0.5f);
+float Transform::ty() const {
+    return mMatrix[2][1];
 }
 
 void Transform::reset() {
@@ -239,7 +239,9 @@
             out.set(transform(reg.bounds()));
         }
     } else {
-        out = reg.translate(tx(), ty());
+        int xpos = floorf(tx() + 0.5f);
+        int ypos = floorf(ty() + 0.5f);
+        out = reg.translate(xpos, ypos);
     }
     return out;
 }
diff --git a/services/surfaceflinger/Transform.h b/services/surfaceflinger/Transform.h
index 8fa5b86..ec74243 100644
--- a/services/surfaceflinger/Transform.h
+++ b/services/surfaceflinger/Transform.h
@@ -64,8 +64,8 @@
             uint32_t    getOrientation() const;
 
             float const* operator [] (int i) const;  // returns column i
-            int     tx() const;
-            int     ty() const;
+            float   tx() const;
+            float   ty() const;
 
             // modify the transform
             void        reset();