Revert "SurfaceFlinger will now allocate buffers based on the usage specified by the clients. This allows to allocate the right kind of buffer automatically, without having the user to specify anything."

This reverts commit 8b76a0ac6fbf07254629ed1ea86af014d5abe050.

1 files changed, 3 insertions, 34 deletions

diff --git a/libs/ui/Surface.cpp b/libs/ui/Surface.cpp
index 2b6905f..4abb7f6 100644
--- a/libs/ui/Surface.cpp
+++ b/libs/ui/Surface.cpp
@@ -414,7 +414,6 @@ void Surface::init()
     android_native_window_t::lockBuffer       = lockBuffer;
     android_native_window_t::queueBuffer      = queueBuffer;
     android_native_window_t::query            = query;
-    android_native_window_t::perform          = perform;
     mSwapRectangle.makeInvalid();
     DisplayInfo dinfo;
     SurfaceComposerClient::getDisplayInfo(0, &dinfo);
@@ -424,8 +423,6 @@ void Surface::init()
     const_cast<int&>(android_native_window_t::minSwapInterval) = 1;
     const_cast<int&>(android_native_window_t::maxSwapInterval) = 1;
     const_cast<uint32_t&>(android_native_window_t::flags) = 0;
-    // be default we request a hardware surface
-    mUsage = GRALLOC_USAGE_HW_RENDER;
 }
 
 
@@ -515,17 +512,6 @@ int Surface::query(android_native_window_t* window,
     return self->query(what, value);
 }
 
-int Surface::perform(android_native_window_t* window, 
-        int operation, ...)
-{
-    va_list args;
-    va_start(args, operation);
-    Surface* self = getSelf(window);
-    int res = self->perform(operation, args);
-    va_end(args);
-    return res;
-}
-
 // ----------------------------------------------------------------------------
 
 status_t Surface::dequeueBuffer(sp<SurfaceBuffer>* buffer)
@@ -575,7 +561,7 @@ int Surface::dequeueBuffer(android_native_buffer_t** buffer)
 
     volatile const surface_info_t* const back = lcblk->surface + backIdx;
     if (back->flags & surface_info_t::eNeedNewBuffer) {
-        err = getBufferLocked(backIdx, mUsage);
+        err = getBufferLocked(backIdx);
     }
 
     if (err == NO_ERROR) {
@@ -641,20 +627,6 @@ int Surface::query(int what, int* value)
     return BAD_VALUE;
 }
 
-int Surface::perform(int operation, va_list args)
-{
-    int res = NO_ERROR;
-    switch (operation) {
-        case NATIVE_WINDOW_SET_USAGE:
-            mUsage = va_arg(args, int);
-            break;
-        default:
-            res = NAME_NOT_FOUND;
-            break;
-    }
-    return res;
-}
-
 // ----------------------------------------------------------------------------
 
 status_t Surface::lock(SurfaceInfo* info, bool blocking) {
@@ -664,9 +636,6 @@ status_t Surface::lock(SurfaceInfo* info, bool blocking) {
 status_t Surface::lock(SurfaceInfo* other, Region* dirtyIn, bool blocking) 
 {
     // FIXME: needs some locking here
-
-    // we're intending to do software rendering from this point
-    mUsage = GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN;
     
     sp<SurfaceBuffer> backBuffer;
     status_t err = dequeueBuffer(&backBuffer);
@@ -756,10 +725,10 @@ void Surface::setSwapRectangle(const Rect& r) {
     mSwapRectangle = r;
 }
 
-status_t Surface::getBufferLocked(int index, int usage)
+status_t Surface::getBufferLocked(int index)
 {
     status_t err = NO_MEMORY;
-    sp<SurfaceBuffer> buffer = mSurface->getBuffer(usage);
+    sp<SurfaceBuffer> buffer = mSurface->getBuffer();
     LOGE_IF(buffer==0, "ISurface::getBuffer() returned NULL");
     if (buffer != 0) {
         sp<SurfaceBuffer>& currentBuffer(mBuffers[index]);