3 files changed, 62 insertions, 67 deletions

diff --git a/include/private/gui/ComposerService.h b/include/private/gui/ComposerService.h
index d04491a..ff2f9bf 100644
--- a/include/private/gui/ComposerService.h
+++ b/include/private/gui/ComposerService.h
@@ -30,21 +30,30 @@ namespace android {
 
 class IMemoryHeap;
 class ISurfaceComposer;
-class surface_flinger_cblk_t;
 
 // ---------------------------------------------------------------------------
 
+// This holds our connection to the composer service (i.e. SurfaceFlinger).
+// If the remote side goes away, we will re-establish the connection.
+// Users of this class should not retain the value from
+// getComposerService() for an extended period.
+//
+// (It's not clear that using Singleton is useful here anymore.)
 class ComposerService : public Singleton<ComposerService>
 {
-    // these are constants
     sp<ISurfaceComposer> mComposerService;
-    sp<IMemoryHeap> mServerCblkMemory;
-    surface_flinger_cblk_t volatile* mServerCblk;
+    sp<IBinder::DeathRecipient> mDeathObserver;
+    Mutex mLock;
+
     ComposerService();
+    void connectLocked();
+    void composerServiceDied();
     friend class Singleton<ComposerService>;
 public:
+
+    // Get a connection to the Composer Service.  This will block until
+    // a connection is established.
     static sp<ISurfaceComposer> getComposerService();
-    static surface_flinger_cblk_t const volatile * getControlBlock();
 };
 
 // ---------------------------------------------------------------------------
diff --git a/include/private/gui/LayerState.h b/include/private/gui/LayerState.h
index 9151c11..a7eb48c 100644
--- a/include/private/gui/LayerState.h
+++ b/include/private/gui/LayerState.h
@@ -33,10 +33,27 @@ class ISurfaceComposerClient;
 
 struct layer_state_t {
 
+
+    enum {
+        eLayerHidden        = 0x01,
+    };
+
+    enum {
+        ePositionChanged            = 0x00000001,
+        eLayerChanged               = 0x00000002,
+        eSizeChanged                = 0x00000004,
+        eAlphaChanged               = 0x00000008,
+        eMatrixChanged              = 0x00000010,
+        eTransparentRegionChanged   = 0x00000020,
+        eVisibilityChanged          = 0x00000040,
+        eLayerStackChanged          = 0x00000080,
+        eCropChanged                = 0x00000100,
+    };
+
     layer_state_t()
         :   surface(0), what(0),
-            x(0), y(0), z(0), w(0), h(0),
-            alpha(0), tint(0), flags(0), mask(0),
+            x(0), y(0), z(0), w(0), h(0), layerStack(0),
+            alpha(0), flags(0), mask(0),
             reserved(0)
     {
         matrix.dsdx = matrix.dtdy = 1.0f;
@@ -60,8 +77,8 @@ struct layer_state_t {
             uint32_t        z;
             uint32_t        w;
             uint32_t        h;
+            uint32_t        layerStack;
             float           alpha;
-            uint32_t        tint;
             uint8_t         flags;
             uint8_t         mask;
             uint8_t         reserved;
@@ -78,6 +95,34 @@ struct ComposerState {
     status_t    read(const Parcel& input);
 };
 
+struct DisplayState {
+
+    enum {
+        eOrientationDefault     = 0,
+        eOrientation90          = 1,
+        eOrientation180         = 2,
+        eOrientation270         = 3,
+        eOrientationUnchanged   = 4,
+        eOrientationSwapMask    = 0x01
+    };
+
+    enum {
+        eSurfaceChanged             = 0x01,
+        eLayerStackChanged          = 0x02,
+        eDisplayProjectionChanged   = 0x04
+    };
+
+    uint32_t what;
+    sp<IBinder> token;
+    sp<ISurfaceTexture> surface;
+    uint32_t layerStack;
+    uint32_t orientation;
+    Rect viewport;
+    Rect frame;
+    status_t write(Parcel& output) const;
+    status_t read(const Parcel& input);
+};
+
 }; // namespace android
 
 #endif // ANDROID_SF_LAYER_STATE_H
diff --git a/include/private/gui/SharedBufferStack.h b/include/private/gui/SharedBufferStack.h
deleted file mode 100644
index 0da03d1..0000000
--- a/include/private/gui/SharedBufferStack.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SF_SHARED_BUFFER_STACK_H
-#define ANDROID_SF_SHARED_BUFFER_STACK_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <utils/Debug.h>
-
-namespace android {
-// ---------------------------------------------------------------------------
-
-#define NUM_DISPLAY_MAX 4
-
-struct display_cblk_t
-{
-    uint16_t    w;
-    uint16_t    h;
-    uint8_t     format;
-    uint8_t     orientation;
-    uint8_t     reserved[2];
-    float       fps;
-    float       density;
-    float       xdpi;
-    float       ydpi;
-    uint32_t    pad[2];
-};
-
-struct surface_flinger_cblk_t   // 4KB max
-{
-    uint8_t         connected;
-    uint8_t         reserved[3];
-    uint32_t        pad[7];
-    display_cblk_t  displays[NUM_DISPLAY_MAX];
-};
-
-// ---------------------------------------------------------------------------
-
-COMPILE_TIME_ASSERT(sizeof(surface_flinger_cblk_t) <= 4096)
-
-// ---------------------------------------------------------------------------
-}; // namespace android
-
-#endif /* ANDROID_SF_SHARED_BUFFER_STACK_H */