1 #ifndef _ANDROID_GRAPHICS_BYTE_BUFFER_STREAM_ADAPTOR_H_ 2 #define _ANDROID_GRAPHICS_BYTE_BUFFER_STREAM_ADAPTOR_H_ 3 4 #include <jni.h> 5 #include <memory> 6 7 class SkStream; 8 9 /** 10 * Create an adaptor for treating a java.nio.ByteBuffer as an SkStream. 11 * 12 * This will special case direct ByteBuffers, but not the case where a byte[] 13 * can be used directly. For that, use CreateByteArrayStreamAdaptor. 14 * 15 * @param jbyteBuffer corresponding to the java ByteBuffer. This method will 16 * add a global ref. 17 * @param initialPosition returned by ByteBuffer.position(). Decoding starts 18 * from here. 19 * @param limit returned by ByteBuffer.limit(). 20 * 21 * Returns null on failure. 22 */ 23 std::unique_ptr<SkStream> CreateByteBufferStreamAdaptor(JNIEnv*, jobject jbyteBuffer, 24 size_t initialPosition, size_t limit); 25 26 /** 27 * Create an adaptor for treating a Java byte[] as an SkStream. 28 * 29 * @param offset into the byte[] of the beginning of the data to use. 30 * @param length of data to use, starting from offset. 31 * 32 * Returns null on failure. 33 */ 34 std::unique_ptr<SkStream> CreateByteArrayStreamAdaptor(JNIEnv*, jbyteArray array, size_t offset, 35 size_t length); 36 37 #endif // _ANDROID_GRAPHICS_BYTE_BUFFER_STREAM_ADAPTOR_H_ 38
