Merge Android R (rvc-dev-plus-aosp-without-vendor@6692709)

Bug: 166295507
Merged-In: I3d92a6de21a938f6b352ec26dc23420c0fe02b27
Change-Id: Ifdb80563ef042738778ebb8a7581a97c4e3d96e2

1 files changed, 37 insertions, 0 deletions

diff --git a/libs/hwui/jni/ByteBufferStreamAdaptor.h b/libs/hwui/jni/ByteBufferStreamAdaptor.h
new file mode 100644
index 000000000000..367a48fad9b9
--- /dev/null
+++ b/libs/hwui/jni/ByteBufferStreamAdaptor.h
@@ -0,0 +1,37 @@
+#ifndef _ANDROID_GRAPHICS_BYTE_BUFFER_STREAM_ADAPTOR_H_
+#define _ANDROID_GRAPHICS_BYTE_BUFFER_STREAM_ADAPTOR_H_
+
+#include <jni.h>
+#include <memory>
+
+class SkStream;
+
+/**
+ * Create an adaptor for treating a java.nio.ByteBuffer as an SkStream.
+ *
+ * This will special case direct ByteBuffers, but not the case where a byte[]
+ * can be used directly. For that, use CreateByteArrayStreamAdaptor.
+ *
+ * @param jbyteBuffer corresponding to the java ByteBuffer. This method will
+ *      add a global ref.
+ * @param initialPosition returned by ByteBuffer.position(). Decoding starts
+ *      from here.
+ * @param limit returned by ByteBuffer.limit().
+ *
+ * Returns null on failure.
+ */
+std::unique_ptr<SkStream> CreateByteBufferStreamAdaptor(JNIEnv*, jobject jbyteBuffer,
+                                                        size_t initialPosition, size_t limit);
+
+/**
+ * Create an adaptor for treating a Java byte[] as an SkStream.
+ *
+ * @param offset into the byte[] of the beginning of the data to use.
+ * @param length of data to use, starting from offset.
+ *
+ * Returns null on failure.
+ */
+std::unique_ptr<SkStream> CreateByteArrayStreamAdaptor(JNIEnv*, jbyteArray array, size_t offset,
+                                                       size_t length);
+
+#endif  // _ANDROID_GRAPHICS_BYTE_BUFFER_STREAM_ADAPTOR_H_