Support readback from hardware bitmaps

Test: hwuimacro readbackFromHBitmap --onscreen.
bug:30999911
Change-Id: I369c069c40cb0f9adae5a94501815f29c2d7df0f

1 files changed, 14 insertions, 0 deletions

diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 2c4824279325..022e871315a9 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -27,6 +27,8 @@
 #include "utils/Macros.h"
 #include "utils/TimeUtils.h"
 
+#include <ui/GraphicBuffer.h>
+
 namespace android {
 namespace uirenderer {
 namespace renderthread {
@@ -663,6 +665,18 @@ sk_sp<Bitmap> RenderProxy::allocateHardwareBitmap(SkBitmap& bitmap) {
     return hardwareBitmap;
 }
 
+CREATE_BRIDGE3(copyGraphicBufferInto, RenderThread* thread, GraphicBuffer* buffer, SkBitmap* bitmap) {
+    return (void*) args->thread->readback().copyGraphicBufferInto(args->buffer, args->bitmap);
+}
+
+int RenderProxy::copyGraphicBufferInto(GraphicBuffer* buffer, SkBitmap* bitmap) {
+    SETUP_TASK(copyGraphicBufferInto);
+    args->thread = &RenderThread::getInstance();
+    args->bitmap = bitmap;
+    args->buffer = buffer;
+    return static_cast<int>(reinterpret_cast<intptr_t>(staticPostAndWait(task)));
+}
+
 void RenderProxy::post(RenderTask* task) {
     mRenderThread.queue(task);
 }