Use physical memory for software rendering to take a fast path through surface flinger if possible.

related-to-bug: 2386023

1 files changed, 10 insertions, 1 deletions

diff --git a/media/libstagefright/colorconversion/SoftwareRenderer.cpp b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
index ef6ede0..ed91eea 100644
--- a/media/libstagefright/colorconversion/SoftwareRenderer.cpp
+++ b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
@@ -20,6 +20,7 @@
 #include "../include/SoftwareRenderer.h"
 
 #include <binder/MemoryHeapBase.h>
+#include <binder/MemoryHeapPmem.h>
 #include <media/stagefright/MediaDebug.h>
 #include <ui/ISurface.h>
 
@@ -38,8 +39,16 @@ SoftwareRenderer::SoftwareRenderer(
       mDecodedWidth(decodedWidth),
       mDecodedHeight(decodedHeight),
       mFrameSize(mDecodedWidth * mDecodedHeight * 2),  // RGB565
-      mMemoryHeap(new MemoryHeapBase(2 * mFrameSize)),
       mIndex(0) {
+    // TODO: How do I allocate physical memory on Droid?
+    mMemoryHeap = new MemoryHeapBase("/dev/pmem_adsp", 2 * mFrameSize);
+    if (mMemoryHeap->heapID() < 0) {
+        LOGI("Creating physical memory heap failed, reverting to regular heap.");
+        mMemoryHeap = new MemoryHeapBase(2 * mFrameSize);
+    } else {
+        mMemoryHeap = new MemoryHeapPmem(mMemoryHeap);
+    }
+
     CHECK(mISurface.get() != NULL);
     CHECK(mDecodedWidth > 0);
     CHECK(mDecodedHeight > 0);