diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index ae81c8f..9e81a78 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -157,7 +157,7 @@
     status_t setAlpha(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
             float alpha);
     status_t setMatrix(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
-            float dsdx, float dtdx, float dsdy, float dtdy);
+            float dsdx, float dtdx, float dtdy, float dsdy);
     status_t setOrientation(int orientation);
     status_t setCrop(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
             const Rect& crop);
@@ -392,7 +392,7 @@
 
 status_t Composer::setMatrix(const sp<SurfaceComposerClient>& client,
         const sp<IBinder>& id, float dsdx, float dtdx,
-        float dsdy, float dtdy) {
+        float dtdy, float dsdy) {
     Mutex::Autolock _l(mLock);
     layer_state_t* s = getLayerStateLocked(client, id);
     if (!s)
@@ -768,8 +768,8 @@
 }
 
 status_t SurfaceComposerClient::setMatrix(const sp<IBinder>& id, float dsdx, float dtdx,
-        float dsdy, float dtdy) {
-    return getComposer().setMatrix(this, id, dsdx, dtdx, dsdy, dtdy);
+        float dtdy, float dsdy) {
+    return getComposer().setMatrix(this, id, dsdx, dtdx, dtdy, dsdy);
 }
 
 status_t SurfaceComposerClient::deferTransactionUntil(const sp<IBinder>& id,
diff --git a/libs/gui/SurfaceControl.cpp b/libs/gui/SurfaceControl.cpp
index 0362216..070a3c8 100644
--- a/libs/gui/SurfaceControl.cpp
+++ b/libs/gui/SurfaceControl.cpp
@@ -147,10 +147,10 @@
     if (err < 0) return err;
     return mClient->setAlpha(mHandle, alpha);
 }
-status_t SurfaceControl::setMatrix(float dsdx, float dtdx, float dsdy, float dtdy) {
+status_t SurfaceControl::setMatrix(float dsdx, float dtdx, float dtdy, float dsdy) {
     status_t err = validate();
     if (err < 0) return err;
-    return mClient->setMatrix(mHandle, dsdx, dtdx, dsdy, dtdy);
+    return mClient->setMatrix(mHandle, dsdx, dtdx, dtdy, dsdy);
 }
 status_t SurfaceControl::setCrop(const Rect& crop) {
     status_t err = validate();