PFW: Parameter adaptation (platform interface)

BZ: 15069

Adaptation nodes have been added to integer parameter types in the structural
description.
They all convert values between a platform value and the actual parameter
value.
When a conversion node affects the definition of an integer type parameter,
its interface type becomes "double" (instead of integer).
For now only linear adaptation type is supported.

Linear adaptation:
=================
Linear adaptation nodes consists of the following attributes:
- slope numerator (double, default = 1)
- slope denominator (double, defult = 1)
- offset (signed integer, default = 0)
Conversions from user (platform) values to blackboard are done the follwing
way:
blackboard_value = user_value * slope_numerator / slope_denominator + offset

Change-Id: I00abe9ba5961d8e541b616225531bbc7c8b465b0
Signed-off-by: Patrick Benavoli <patrickx.benavoli@intel.com>
Reviewed-on: http://android.intel.com:8080/25407
Reviewed-by: Barthes, FabienX <fabienx.barthes@intel.com>
Tested-by: Barthes, FabienX <fabienx.barthes@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/parameter/LinearParameterAdaptation.cpp b/parameter/LinearParameterAdaptation.cpp
new file mode 100644
index 0000000..063eeaa
--- /dev/null
+++ b/parameter/LinearParameterAdaptation.cpp
@@ -0,0 +1,98 @@
+/* <auto_header>
+ * <FILENAME>
+ *
+ * INTEL CONFIDENTIAL
+ * Copyright © 2011 Intel
+ * Corporation All Rights Reserved.
+ *
+ * The source code contained or described herein and all documents related to
+ * the source code ("Material") are owned by Intel Corporation or its suppliers
+ * or licensors. Title to the Material remains with Intel Corporation or its
+ * suppliers and licensors. The Material contains trade secrets and proprietary
+ * and confidential information of Intel or its suppliers and licensors. The
+ * Material is protected by worldwide copyright and trade secret laws and
+ * treaty provisions. No part of the Material may be used, copied, reproduced,
+ * modified, published, uploaded, posted, transmitted, distributed, or
+ * disclosed in any way without Intel’s prior express written permission.
+ *
+ * No license under any patent, copyright, trade secret or other intellectual
+ * property right is granted to or conferred upon you by disclosure or delivery
+ * of the Materials, either expressly, by implication, inducement, estoppel or
+ * otherwise. Any license under such intellectual property rights must be
+ * express and approved by Intel in writing.
+ *
+ *  AUTHOR: Patrick Benavoli (patrickx.benavoli@intel.com)
+ * CREATED: 2011-06-01
+ * UPDATED: 2011-07-27
+ *
+ *
+ * </auto_header>
+ */
+#include "LinearParameterAdaptation.h"
+
+#define base CParameterAdaptation
+
+CLinearParameterAdaptation::CLinearParameterAdaptation() : base("Linear"), _dSlopeNumerator(1), _dSlopeDenominator(1)
+{
+}
+
+// Element properties
+void CLinearParameterAdaptation::showProperties(string& strResult) const
+{
+    base::showProperties(strResult);
+
+    // SlopeNumerator
+    strResult += " - SlopeNumerator: ";
+    strResult += toString(_dSlopeNumerator);
+    strResult += "\n";
+
+    // SlopeDenominator
+    strResult += " - SlopeDenominator: ";
+    strResult += toString(_dSlopeDenominator);
+    strResult += "\n";
+}
+
+// From IXmlSink
+bool CLinearParameterAdaptation::fromXml(const CXmlElement& xmlElement, CXmlSerializingContext& serializingContext)
+{
+    // Get SlopeNumerator
+    if (xmlElement.hasAttribute("SlopeNumerator")) {
+
+        _dSlopeNumerator = xmlElement.getAttributeDouble("SlopeNumerator");
+
+    } else {
+        // Default
+        _dSlopeNumerator = 1;
+    }
+    // Get SlopeDenominator
+    if (xmlElement.hasAttribute("SlopeDenominator")) {
+
+        _dSlopeDenominator = xmlElement.getAttributeDouble("SlopeDenominator");
+
+        // Avoid by 0 division errors
+        if (_dSlopeDenominator == 0) {
+
+            serializingContext.setError("SlopeDenominator attribute can't be 0 on element" + xmlElement.getPath());
+
+            return false;
+        }
+
+    } else {
+        // Default
+        _dSlopeDenominator = 1;
+    }
+
+    // Base
+    return base::fromXml(xmlElement, serializingContext);
+}
+
+// Conversions
+int64_t CLinearParameterAdaptation::fromUserValue(double dValue) const
+{
+    return base::fromUserValue(dValue * _dSlopeNumerator / _dSlopeDenominator);
+}
+
+double CLinearParameterAdaptation::toUserValue(int64_t iValue) const
+{
+    return base::toUserValue(iValue) * _dSlopeDenominator / _dSlopeNumerator;
+}