Add set_scaling_mode() to ANativeWindow.

This allows to specify the scaling mode independently from
the buffer size.

Change-Id: Iaa2baa660445531a97d3fac192e580f4929c5d3b

1 files changed, 20 insertions, 0 deletions

diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index d5b7c89f8f..fec80ef932 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -286,6 +286,9 @@ int SurfaceTextureClient::perform(int operation, va_list args)
     case NATIVE_WINDOW_UNLOCK_AND_POST:
         res = dispatchUnlockAndPost(args);
         break;
+    case NATIVE_WINDOW_SET_SCALING_MODE:
+        res = dispatchSetScalingMode(args);
+        break;
     default:
         res = NAME_NOT_FOUND;
         break;
@@ -340,6 +343,11 @@ int SurfaceTextureClient::dispatchSetBuffersFormat(va_list args) {
     return setBuffersFormat(f);
 }
 
+int SurfaceTextureClient::dispatchSetScalingMode(va_list args) {
+    int m = va_arg(args, int);
+    return setScalingMode(m);
+}
+
 int SurfaceTextureClient::dispatchSetBuffersTransform(va_list args) {
     int transform = va_arg(args, int);
     return setBuffersTransform(transform);
@@ -456,6 +464,18 @@ int SurfaceTextureClient::setBuffersFormat(int format)
     return NO_ERROR;
 }
 
+int SurfaceTextureClient::setScalingMode(int mode)
+{
+    LOGV("SurfaceTextureClient::setScalingMode");
+    Mutex::Autolock lock(mMutex);
+    // mode is validated on the server
+    status_t err = mSurfaceTexture->setScalingMode(mode);
+    LOGE_IF(err, "ISurfaceTexture::setScalingMode(%d) returned %s",
+            mode, strerror(-err));
+
+    return err;
+}
+
 int SurfaceTextureClient::setBuffersTransform(int transform)
 {
     LOGV("SurfaceTextureClient::setBuffersTransform");