commit 95f8368b4b1e59c2a9a127f98a7ca8ab722f3111
author Saurabh Shah <saurshah@codeaurora.org> Fri Oct 16 10:30:04 2015 -0700
committer Saurabh Shah <saurshah@codeaurora.org> Thu Oct 29 11:12:23 2015 -0700
tree f298f3e802bdd918bfb1ab7a4e0b19fee9572f7f
parent 5fb6d407cf7c8406909fb1797e1e862e6a9c9ff8

gralloc/metadata: Add support for single buffer mode

Add support for setting single buffer mode on a buffer via gralloc
perform from gfx

Change-Id: I7640b3b984ebc1c4c8fcaedfb3e222ec989a84cb

libgralloc/gralloc_priv.h

diff --git a/libgralloc/gralloc_priv.h b/libgralloc/gralloc_priv.h
index 38a6235..efc7d67 100644
--- a/libgralloc/gralloc_priv.h
+++ b/libgralloc/gralloc_priv.h
@@ -88,6 +88,7 @@
 #define GRALLOC_MODULE_PERFORM_GET_RGB_DATA_ADDRESS 10
 #define GRALLOC_MODULE_PERFORM_GET_IGC 11
 #define GRALLOC_MODULE_PERFORM_SET_IGC 12
+#define GRALLOC_MODULE_PERFORM_SET_SINGLE_BUFFER_MODE 13
 
 /* OEM specific HAL formats */
 

libgralloc/mapper.cpp

diff --git a/libgralloc/mapper.cpp b/libgralloc/mapper.cpp
index 8d8532b..5e8e59f 100644
--- a/libgralloc/mapper.cpp
+++ b/libgralloc/mapper.cpp
@@ -480,6 +480,15 @@
                 }
             } break;
 
+        case GRALLOC_MODULE_PERFORM_SET_SINGLE_BUFFER_MODE:
+            {
+                private_handle_t* hnd =  va_arg(args, private_handle_t*);
+                bool *enable = va_arg(args, bool*);
+                if (private_handle_t::validate(hnd)) {
+                    return res;
+                }
+                setMetaData(hnd, SET_SINGLE_BUFFER_MODE, enable);
+            } break;
         default:
             break;
     }

libqdutils/qdMetaData.cpp

diff --git a/libqdutils/qdMetaData.cpp b/libqdutils/qdMetaData.cpp
index a66704e..626f250 100644
--- a/libqdutils/qdMetaData.cpp
+++ b/libqdutils/qdMetaData.cpp
@@ -102,6 +102,9 @@
         case SET_IGC:
             data->igc = *((IGC_t *)param);
             break;
+        case SET_SINGLE_BUFFER_MODE:
+            data->isSingleBufferMode = *((bool *)param);
+            break;
         default:
             ALOGE("Unknown paramType %d", paramType);
             break;

libqdutils/qdMetaData.h

diff --git a/libqdutils/qdMetaData.h b/libqdutils/qdMetaData.h
index 532a6d8..ef299f6 100644
--- a/libqdutils/qdMetaData.h
+++ b/libqdutils/qdMetaData.h
@@ -97,6 +97,9 @@
     uint32_t s3dFormat;
     /* VENUS output buffer is linear for UBWC Interlaced video */
     uint32_t linearFormat;
+    /* Set by graphics to indicate that this buffer will be written to but not
+     * swapped out */
+    bool isSingleBufferMode;
 };
 
 enum DispParamType {
@@ -114,6 +117,7 @@
     S3D_FORMAT = 0x800,
     LINEAR_FORMAT = 0x1000,
     SET_IGC = 0x2000,
+    SET_SINGLE_BUFFER_MODE = 0x4000,
 };
 
 struct private_handle_t;