[Tizen] Fix Coverity issues

[platform/core/uifw/dali-adaptor.git] / dali / devel-api / adaptor-framework / pixel-buffer.h

diff --git a/dali/devel-api/adaptor-framework/pixel-buffer.h b/dali/devel-api/adaptor-framework/pixel-buffer.h
index 21a2c91..2a9add4 100755 (executable)
--- a/dali/devel-api/adaptor-framework/pixel-buffer.h
+++ b/dali/devel-api/adaptor-framework/pixel-buffer.h
@@ -134,6 +134,17 @@ public:
   unsigned char* GetBuffer();
 
   /**
+   * @brief Gets the pixel buffer. This is a pointer to the internal
+   * pixel buffer.
+   *
+   * @warning If there is no pixel buffer (e.g. this object has been
+   * converted to a PixelData), this method will return NULL.
+   *
+   * @return The pixel buffer, or NULL.
+   */
+  const unsigned char* const GetBuffer() const;
+
+  /**
    * @brief Gets the width of the buffer in pixels.
    *
    * @SINCE_1_2.46
@@ -221,13 +232,21 @@ public:
   /**
    * @brief Rotates the pixel buffer by the given angle.
    *
-   * @note Operation valid for pixel formats: A8, L8, LA88, RGB888, RGB8888, BGR8888, RGBA8888 and BGRA8888. Does nothing otherwise.
+   * @note Operation valid for pixel formats: A8, L8, LA88, RGB888, RGB8888, BGR8888, RGBA8888 and BGRA8888. Fails otherwise.
    * @note The operation does nothing for angles equivalent to 0 degrees: -360, 360, 720, etc.
    * @note If the pixel buffer does rotate, all the pointers to the internal pixel buffer retrieved by the method GetPixelBuffer() become invalid.
    *
    * @param[in] angle The angle in degrees.
+   *
+   * @return @e false if the rotation fails (invalid pixel format or memory issues).
+   */
+  bool Rotate( Degree angle );
+
+  /**
+   * @brief Returns pixel-buffer is premultiplied or not.
+   * @return true if alpha is pre-multiplied.
    */
-  void Rotate( Degree angle );
+  bool IsAlphaPreMultiplied() const;
 
 public: