[3171580] Add transform field to native buffers. (DO NOT MERGE)

This field indicate how the content of the buffer
needs to be transformed.

Change-Id: Ide3e980a90599e931406135693231276626adbbb

2 files changed, 16 insertions, 2 deletions

diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
index 6edc3ca..0be26a7 100644
--- a/include/ui/GraphicBuffer.h
+++ b/include/ui/GraphicBuffer.h
@@ -26,6 +26,8 @@
 #include <utils/Flattenable.h>
 #include <pixelflinger/pixelflinger.h>
 
+#include <hardware/hardware.h>
+
 struct android_native_buffer_t;
 
 namespace android {
@@ -63,6 +65,13 @@ public:
         USAGE_HW_MASK           = GRALLOC_USAGE_HW_MASK
     };
 
+    enum {
+        TRANSFORM_IDENTITY      = 0,
+        TRANSFORM_ROT_90        = HAL_TRANSFORM_ROT_90,
+        TRANSFORM_ROT_180       = HAL_TRANSFORM_ROT_180,
+        TRANSFORM_ROT_270       = HAL_TRANSFORM_ROT_270
+    };
+
     GraphicBuffer();
 
     // creates w * h buffer
@@ -79,6 +88,7 @@ public:
     uint32_t getHeight() const          { return height; }
     uint32_t getStride() const          { return stride; }
     uint32_t getUsage() const           { return usage; }
+    uint32_t getTransform() const       { return transform; }
     PixelFormat getPixelFormat() const  { return format; }
     Rect getBounds() const              { return Rect(width, height); }
     
diff --git a/include/ui/android_native_buffer.h b/include/ui/android_native_buffer.h
index 402843e..a472824 100644
--- a/include/ui/android_native_buffer.h
+++ b/include/ui/android_native_buffer.h
@@ -51,8 +51,12 @@ typedef struct android_native_buffer_t
     int stride;
     int format;
     int usage;
-    
-    void* reserved[2];
+
+    /* transformation as defined in hardware.h */
+    uint8_t transform;
+
+    uint8_t reserved_bytes[3];
+    void* reserved[1];
 
     buffer_handle_t handle;