display: Add QC Display utils

* Rename qcomui directory to qdutils
* Avoid inclusion of qcom_ui header
* Add class to get MDP version
* Add namespace for qdutils to prevent collison

Change-Id: I9a3f440e6b0fea1cfcc478ddca90af5df3bbb897
diff --git a/libqdutils/comptype.h b/libqdutils/comptype.h
new file mode 100644
index 0000000..a90f957
--- /dev/null
+++ b/libqdutils/comptype.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *   * Neither the name of Code Aurora Forum, Inc. nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef INCLUDE_LIBQCOM_COMPTYPES
+#define INCLUDE_LIBQCOM_COMPTYPES
+
+#include <stdint.h>
+#include <utils/Singleton.h>
+#include <cutils/properties.h>
+
+using namespace android;
+namespace qdutils {
+// Enum containing the supported composition types
+enum {
+    COMPOSITION_TYPE_GPU = 0,
+    COMPOSITION_TYPE_MDP = 0x1,
+    COMPOSITION_TYPE_C2D = 0x2,
+    COMPOSITION_TYPE_CPU = 0x4,
+    COMPOSITION_TYPE_DYN = 0x8
+};
+
+/* This class caches the composition type
+ */
+class QCCompositionType : public Singleton <QCCompositionType>
+{
+    public:
+        QCCompositionType();
+        ~QCCompositionType() { }
+        int getCompositionType() {return mCompositionType;}
+    private:
+        int mCompositionType;
+
+};
+
+inline QCCompositionType::QCCompositionType()
+{
+    char property[PROPERTY_VALUE_MAX];
+    mCompositionType = 0;
+    if (property_get("debug.sf.hw", property, NULL) > 0) {
+        if(atoi(property) == 0) {
+            mCompositionType = COMPOSITION_TYPE_CPU;
+        } else { //debug.sf.hw = 1
+            property_get("debug.composition.type", property, NULL);
+            if (property == NULL) {
+                mCompositionType = COMPOSITION_TYPE_GPU;
+            } else if ((strncmp(property, "mdp", 3)) == 0) {
+                mCompositionType = COMPOSITION_TYPE_MDP;
+            } else if ((strncmp(property, "c2d", 3)) == 0) {
+                mCompositionType = COMPOSITION_TYPE_C2D;
+            } else if ((strncmp(property, "dyn", 3)) == 0) {
+#ifdef USE_MDP3
+                mCompositionType = COMPOSITION_TYPE_DYN | COMPOSITION_TYPE_MDP;
+#else
+                mCompositionType = COMPOSITION_TYPE_DYN | COMPOSITION_TYPE_C2D;
+#endif
+            } else {
+                mCompositionType = COMPOSITION_TYPE_GPU;
+            }
+        }
+    } else { //debug.sf.hw is not set. Use cpu composition
+        mCompositionType = COMPOSITION_TYPE_CPU;
+    }
+
+}
+}; //namespace qdutils
+ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::QCCompositionType);
+#endif //INCLUDE_LIBQCOM_COMPTYPES