commit 013614183e083cf6bf8fa82e9eaf3c7a8493214f
author Sushil Chauhan <sushilchauhan@codeaurora.org> Mon Apr 25 16:36:18 2016 -0700
committer Sushil Chauhan <sushilchauhan@codeaurora.org> Tue May 10 19:21:23 2016 -0700
tree c25e0ea1c79bdd00e0f95726160e6724f5c3acf4
parent 41451ddbd433a2b3477fb565fba49896fceed1a1

qdutils: Query MDP caps for UBWC feature

- querySDEInfo queries MDP caps to check if UBWC is supported on H/W.
- Gralloc calls querySDEInfo api to check if UBWC feature is enabled
  by MDP driver.

CRs-Fixed: 1013911
Change-Id: I9114c4d8286842f19619302484ee4690c59fcb29

libgralloc/alloc_controller.cpp

diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index 147b9cb..581d112 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -100,14 +100,10 @@
 
 //------------- MDPCapabilityInfo-----------------------//
 MDPCapabilityInfo :: MDPCapabilityInfo() {
-  isMacroTileSupported = false;
   qdutils::querySDEInfo(HAS_MACRO_TILE, &isMacroTileSupported);
+  qdutils::querySDEInfo(HAS_UBWC, &isUBwcSupported);
 }
 
-int MDPCapabilityInfo :: isMacroTilingSupportedByMDP(){
-    return isMacroTileSupported;
- }
-
 //------------- AdrenoMemInfo-----------------------//
 AdrenoMemInfo::AdrenoMemInfo()
 {
@@ -938,20 +934,23 @@
 
 static bool isUBwcSupported(int format)
 {
-    // Existing HAL formats with UBWC support
-    switch(format)
-    {
-        case HAL_PIXEL_FORMAT_BGR_565:
-        case HAL_PIXEL_FORMAT_RGBA_8888:
-        case HAL_PIXEL_FORMAT_RGBX_8888:
-        case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
-        case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
-        case HAL_PIXEL_FORMAT_RGBA_1010102:
-        case HAL_PIXEL_FORMAT_RGBX_1010102:
-            return true;
-        default:
-            return false;
+    if (MDPCapabilityInfo::getInstance().isUBwcSupportedByMDP()) {
+        // Existing HAL formats with UBWC support
+        switch(format)
+        {
+            case HAL_PIXEL_FORMAT_BGR_565:
+            case HAL_PIXEL_FORMAT_RGBA_8888:
+            case HAL_PIXEL_FORMAT_RGBX_8888:
+            case HAL_PIXEL_FORMAT_NV12_ENCODEABLE:
+            case HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
+            case HAL_PIXEL_FORMAT_RGBA_1010102:
+            case HAL_PIXEL_FORMAT_RGBX_1010102:
+                return true;
+            default:
+                break;
+        }
     }
+    return false;
 }
 
 bool isUBwcEnabled(int format, int usage)

libgralloc/gr.h

diff --git a/libgralloc/gr.h b/libgralloc/gr.h
index e7d449e..5fe1bdb 100644
--- a/libgralloc/gr.h
+++ b/libgralloc/gr.h
@@ -201,7 +201,9 @@
 
 class MDPCapabilityInfo : public android::Singleton <MDPCapabilityInfo>
 {
-    int isMacroTileSupported;
+    int isMacroTileSupported = 0;
+    int isUBwcSupported = 0;
+
     public:
         MDPCapabilityInfo();
         /*
@@ -210,8 +212,14 @@
         * @return  1 : supported
         *          0 : not supported
         */
-        int isMacroTilingSupportedByMDP();
-
+        int isMacroTilingSupportedByMDP() { return isMacroTileSupported; }
+        /*
+        * Function to return whether MDP supports UBWC feature
+        *
+        * @return  1 : supported
+        *          0 : not supported
+        */
+        int isUBwcSupportedByMDP() { return isUBwcSupported; }
 };
 
 #endif /* GR_H_ */