return correct value from query after connecting a surface

the first time a surface was connected, the values returned
by query NATIVE_WINDOW_DEFAULT_{WIDTH|HEIGHT} and
NATIVE_WINDOW_TRANSFORM_HINT were wrong until a call
to queueBuffer was performed.

Bug: 5137366, 5121607
Change-Id: I7ac6b5b0daa876638f6bed7c20f286a6e6d984f6

7 files changed, 40 insertions, 9 deletions

diff --git a/include/gui/ISurfaceTexture.h b/include/gui/ISurfaceTexture.h
index 1eda646695..50626a0967 100644
--- a/include/gui/ISurfaceTexture.h
+++ b/include/gui/ISurfaceTexture.h
@@ -111,7 +111,12 @@ protected:
     //
     // This method will fail if the connect was previously called on the
     // SurfaceTexture and no corresponding disconnect call was made.
-    virtual status_t connect(int api) = 0;
+    //
+    // outWidth, outHeight and outTransform are filled with the default width
+    // and height of the window and current transform applied to buffers,
+    // respectively.
+    virtual status_t connect(int api,
+            uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) = 0;
 
     // disconnect attempts to disconnect a client API from the SurfaceTexture.
     // Calling this method will cause any subsequent calls to other
diff --git a/include/gui/SurfaceTexture.h b/include/gui/SurfaceTexture.h
index 2a8e725560..3f9e68d81e 100644
--- a/include/gui/SurfaceTexture.h
+++ b/include/gui/SurfaceTexture.h
@@ -106,7 +106,8 @@ public:
     //
     // This method will fail if the connect was previously called on the
     // SurfaceTexture and no corresponding disconnect call was made.
-    virtual status_t connect(int api);
+    virtual status_t connect(int api,
+            uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform);
 
     // disconnect attempts to disconnect a client API from the SurfaceTexture.
     // Calling this method will cause any subsequent calls to other
diff --git a/libs/gui/ISurfaceTexture.cpp b/libs/gui/ISurfaceTexture.cpp
index 55246dc902..babd2c07bc 100644
--- a/libs/gui/ISurfaceTexture.cpp
+++ b/libs/gui/ISurfaceTexture.cpp
@@ -162,11 +162,15 @@ public:
         return result;
     }
 
-    virtual status_t connect(int api) {
+    virtual status_t connect(int api,
+            uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
         Parcel data, reply;
         data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
         data.writeInt32(api);
         remote()->transact(CONNECT, data, &reply);
+        *outWidth = reply.readInt32();
+        *outHeight = reply.readInt32();
+        *outTransform = reply.readInt32();
         status_t result = reply.readInt32();
         return result;
     }
@@ -283,7 +287,12 @@ status_t BnSurfaceTexture::onTransact(
         case CONNECT: {
             CHECK_INTERFACE(ISurfaceTexture, data, reply);
             int api = data.readInt32();
-            status_t res = connect(api);
+            uint32_t outWidth, outHeight, outTransform;
+            status_t res = connect(api,
+                    &outWidth, &outHeight, &outTransform);
+            reply->writeInt32(outWidth);
+            reply->writeInt32(outHeight);
+            reply->writeInt32(outTransform);
             reply->writeInt32(res);
             return NO_ERROR;
         } break;
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index be71c946ba..02b851c95e 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -548,7 +548,8 @@ status_t SurfaceTexture::setTransform(uint32_t transform) {
     return OK;
 }
 
-status_t SurfaceTexture::connect(int api) {
+status_t SurfaceTexture::connect(int api,
+        uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
     LOGV("SurfaceTexture::connect(this=%p, %d)", this, api);
     Mutex::Autolock lock(mMutex);
 
@@ -569,6 +570,9 @@ status_t SurfaceTexture::connect(int api) {
                 err = -EINVAL;
             } else {
                 mConnectedApi = api;
+                *outWidth = mDefaultWidth;
+                *outHeight = mDefaultHeight;
+                *outTransform = 0;
             }
             break;
         default:
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index d1037defc4..e91be84c48 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -385,7 +385,8 @@ int SurfaceTextureClient::dispatchUnlockAndPost(va_list args) {
 int SurfaceTextureClient::connect(int api) {
     LOGV("SurfaceTextureClient::connect");
     Mutex::Autolock lock(mMutex);
-    int err = mSurfaceTexture->connect(api);
+    int err = mSurfaceTexture->connect(api,
+            &mDefaultWidth, &mDefaultHeight, &mTransformHint);
     if (!err && api == NATIVE_WINDOW_API_CPU) {
         mConnectedToCpu = true;
     }
diff --git a/services/surfaceflinger/SurfaceTextureLayer.cpp b/services/surfaceflinger/SurfaceTextureLayer.cpp
index 5973e76118..79cd0c3140 100644
--- a/services/surfaceflinger/SurfaceTextureLayer.cpp
+++ b/services/surfaceflinger/SurfaceTextureLayer.cpp
@@ -86,9 +86,19 @@ status_t SurfaceTextureLayer::dequeueBuffer(int *buf,
     return res;
 }
 
-status_t SurfaceTextureLayer::connect(int api) {
-    status_t err = SurfaceTexture::connect(api);
+status_t SurfaceTextureLayer::connect(int api,
+        uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
+    status_t err = SurfaceTexture::connect(api,
+            outWidth, outHeight, outTransform);
     if (err == NO_ERROR) {
+        sp<Layer> layer(mLayer.promote());
+        if (layer != NULL) {
+            uint32_t orientation = layer->getOrientation();
+            if (orientation & Transform::ROT_INVALID) {
+                orientation = 0;
+            }
+            *outTransform = orientation;
+        }
         switch(api) {
             case NATIVE_WINDOW_API_MEDIA:
             case NATIVE_WINDOW_API_CAMERA:
diff --git a/services/surfaceflinger/SurfaceTextureLayer.h b/services/surfaceflinger/SurfaceTextureLayer.h
index 5d328b7c6a..9508524af8 100644
--- a/services/surfaceflinger/SurfaceTextureLayer.h
+++ b/services/surfaceflinger/SurfaceTextureLayer.h
@@ -51,7 +51,8 @@ protected:
     virtual status_t dequeueBuffer(int *buf, uint32_t w, uint32_t h,
             uint32_t format, uint32_t usage);
 
-    virtual status_t connect(int api);
+    virtual status_t connect(int api,
+            uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform);
 };
 
 // ---------------------------------------------------------------------------