commit a138f89c5e78b7e8994823e97d6e860869762837
author Mathias Agopian <mathias@google.com> Fri May 21 17:24:35 2010 -0700
committer Mathias Agopian <mathias@google.com> Mon May 24 18:26:01 2010 -0700
tree 9d11e5f9ee406798070a5cb335390147ae1dffa5
parent a0b3f1d2eb796eb90a7576c13890ab8df8516d9d

added the notion of fixed-size buffers

the new native_window_set_buffers_geometry allows
to specify a size and format for all buffers to be
dequeued. the buffer will be scalled to the window's
size.

Change-Id: I2c378b85c88d29cdd827a5f319d5c704d79ba381

libs/surfaceflinger/Layer.h

diff --git a/libs/surfaceflinger/Layer.h b/libs/surfaceflinger/Layer.h
index 247748b..10b5910 100644
--- a/libs/surfaceflinger/Layer.h
+++ b/libs/surfaceflinger/Layer.h
@@ -57,7 +57,8 @@
     status_t setBuffers(uint32_t w, uint32_t h, 
             PixelFormat format, uint32_t flags=0);
 
-    void setDrawingSize(uint32_t w, uint32_t h);
+    void setBufferSize(uint32_t w, uint32_t h);
+    bool isFixedSize() const;
 
     virtual void onDraw(const Region& clip) const;
     virtual uint32_t doTransaction(uint32_t transactionFlags);
@@ -88,7 +89,8 @@
 
     uint32_t getEffectiveUsage(uint32_t usage) const;
 
-    sp<GraphicBuffer> requestBuffer(int index, int usage);
+    sp<GraphicBuffer> requestBuffer(int bufferIdx,
+            uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
     status_t setBufferCount(int bufferCount);
 
     class SurfaceLayer : public LayerBaseClient::Surface {
@@ -97,7 +99,8 @@
                 SurfaceID id, const sp<Layer>& owner);
         ~SurfaceLayer();
     private:
-        virtual sp<GraphicBuffer> requestBuffer(int index, int usage);
+        virtual sp<GraphicBuffer> requestBuffer(int bufferIdx,
+                uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
         virtual status_t setBufferCount(int bufferCount);
         sp<Layer> getOwner() const {
             return static_cast<Layer*>(Surface::getOwner().get());
@@ -181,6 +184,10 @@
             mutable Mutex mLock;
             uint32_t    mWidth;
             uint32_t    mHeight;
+            uint32_t    mReqWidth;
+            uint32_t    mReqHeight;
+            uint32_t    mReqFormat;
+            bool        mFixedSize;
 };
 
 // ---------------------------------------------------------------------------