diff --git a/include/Android/android/api-level.h b/include/Android/android/api-level.h
new file mode 100644
index 0000000..2d2f096
--- /dev/null
+++ b/include/Android/android/api-level.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef ANDROID_API_LEVEL_H
+#define ANDROID_API_LEVEL_H
+
+/*
+ * Magic version number for a current development build, which has
+ * not yet turned into an official release.
+ */
+#define __ANDROID_API__ 10000
+
+#endif /* ANDROID_API_LEVEL_H */
diff --git a/include/Android/android/sync.h b/include/Android/android/sync.h
new file mode 100644
index 0000000..1ae728a
--- /dev/null
+++ b/include/Android/android/sync.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+extern "C" {
+int sync_wait(int fd, int timeout);
+};
diff --git a/include/Android/cutils/native_handle.h b/include/Android/cutils/native_handle.h
new file mode 100644
index 0000000..b92a663
--- /dev/null
+++ b/include/Android/cutils/native_handle.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+struct native_handle_t;
+
+typedef const struct native_handle_t* buffer_handle_t;
diff --git a/include/Android/hardware/gralloc.h b/include/Android/hardware/gralloc.h
new file mode 100644
index 0000000..8446ba4
--- /dev/null
+++ b/include/Android/hardware/gralloc.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <cutils/native_handle.h>
+
+#include <hardware/hardware.h>
+
+struct android_ycbcr;
+
+enum {
+    GRALLOC_USAGE_SW_READ_OFTEN = 0x00000003U,
+    GRALLOC_USAGE_SW_WRITE_OFTEN = 0x00000030U,
+    GRALLOC_USAGE_HW_TEXTURE = 0x00000100U,
+    GRALLOC_USAGE_HW_RENDER = 0x00000200U,
+};
+
+struct gralloc_module_t {
+    hw_module_t common;
+    int (*registerBuffer)(gralloc_module_t const*, buffer_handle_t);
+    int (*unregisterBuffer)(gralloc_module_t const*, buffer_handle_t);
+    int (*lock)(gralloc_module_t const*, buffer_handle_t, int, int, int, int, int, void**);
+    int (*unlock)(gralloc_module_t const*, buffer_handle_t);
+    int (*perform)(gralloc_module_t const*, int, ...);
+    int (*lock_ycbcr)(gralloc_module_t const*, buffer_handle_t, int, int, int, int, int,
+                      android_ycbcr*);
+    int (*lockAsync)(gralloc_module_t const*, buffer_handle_t, int, int, int, int, int, void**, int);
+    int (*unlockAsync)(gralloc_module_t const*, buffer_handle_t, int*);
+    int (*lockAsync_ycbcr)(gralloc_module_t const*, buffer_handle_t, int, int, int, int, int,
+                           android_ycbcr*, int);
+    void* reserved_proc[3];
+};
diff --git a/include/Android/hardware/gralloc1.h b/include/Android/hardware/gralloc1.h
new file mode 100644
index 0000000..b02decf
--- /dev/null
+++ b/include/Android/hardware/gralloc1.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <hardware/hardware.h>
+
+#include <cutils/native_handle.h>
+
+#define GRALLOC_MODULE_API_VERSION_1_0 HARDWARE_MAKE_API_VERSION(1, 0)
+
+#define GRALLOC_HARDWARE_MODULE_ID "gralloc"
+
+enum {
+    GRALLOC1_ERROR_NONE = 0,
+    GRALLOC1_ERROR_BAD_HANDLE = 2,
+    GRALLOC1_ERROR_BAD_VALUE = 3,
+    GRALLOC1_ERROR_UNDEFINED = 6,
+};
+
+enum {
+    GRALLOC1_FUNCTION_LOCK = 18,
+    GRALLOC1_FUNCTION_UNLOCK = 20,
+};
+
+enum {
+    GRALLOC1_CONSUMER_USAGE_CPU_READ = 1ULL << 1,
+    GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN = 1ULL << 2 | GRALLOC1_CONSUMER_USAGE_CPU_READ,
+    GRALLOC1_CONSUMER_USAGE_CPU_WRITE = 1ULL << 5,
+    GRALLOC1_CONSUMER_USAGE_CPU_WRITE_OFTEN = 1ULL << 6 | GRALLOC1_CONSUMER_USAGE_CPU_WRITE,
+    GRALLOC1_CONSUMER_USAGE_GPU_TEXTURE = 1ULL << 8,
+};
+
+enum {
+    GRALLOC1_PRODUCER_USAGE_CPU_READ = 1ULL << 1,
+    GRALLOC1_PRODUCER_USAGE_CPU_READ_OFTEN = 1ULL << 2 | GRALLOC1_PRODUCER_USAGE_CPU_READ,
+    GRALLOC1_PRODUCER_USAGE_CPU_WRITE = 1ULL << 5,
+    GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN = 1ULL << 6 | GRALLOC1_PRODUCER_USAGE_CPU_WRITE,
+    GRALLOC1_PRODUCER_USAGE_GPU_RENDER_TARGET = 1ULL << 9,
+};
+
+typedef void (*gralloc1_function_pointer_t)();
+
+struct gralloc1_rect_t {
+    int32_t left;
+    int32_t top;
+    int32_t width;
+    int32_t height;
+};
+
+struct gralloc1_device_t {
+    hw_device_t common;
+    void (*getCapabilities)(gralloc1_device_t*, uint32_t*, int32_t*);
+    gralloc1_function_pointer_t (*getFunction)(gralloc1_device_t*, int32_t);
+};
+
+typedef int32_t (*GRALLOC1_PFN_LOCK)(gralloc1_device_t*, buffer_handle_t, uint64_t, uint64_t,
+                                     const gralloc1_rect_t*, void**, int32_t);
+typedef int32_t (*GRALLOC1_PFN_UNLOCK)(gralloc1_device_t*, buffer_handle_t, int32_t*);
+
+static inline int gralloc1_open(const hw_module_t* module, gralloc1_device_t** device) {
+    return module->methods->open(module, GRALLOC_HARDWARE_MODULE_ID,
+                                 reinterpret_cast<hw_device_t**>(device));
+}
diff --git a/include/Android/hardware/hardware.h b/include/Android/hardware/hardware.h
new file mode 100644
index 0000000..21d6dc4
--- /dev/null
+++ b/include/Android/hardware/hardware.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <cstdint>
+
+#define MAKE_TAG_CONSTANT(A, B, C, D) (((A) << 24) | ((B) << 16) | ((C) << 8) | (D))
+
+#define HARDWARE_MODULE_TAG MAKE_TAG_CONSTANT('H', 'W', 'M', 'T')
+#define HARDWARE_DEVICE_TAG MAKE_TAG_CONSTANT('H', 'W', 'D', 'T')
+
+#define HARDWARE_MAKE_API_VERSION(maj, min) ((((maj)&0xff) << 8) | ((min)&0xff))
+
+#define HARDWARE_HAL_API_VERSION HARDWARE_MAKE_API_VERSION(1, 0)
+
+struct hw_module_methods_t;
+
+struct hw_module_t {
+    uint32_t tag;
+    uint16_t module_api_version;
+    uint16_t hal_api_version;
+    const char* id;
+    const char* name;
+    const char* author;
+    hw_module_methods_t* methods;
+    void* dso;
+#ifdef __LP64__
+    uint64_t reserved[32 - 7];
+#else
+    uint32_t reserved[32 - 7];
+#endif
+};
+
+struct hw_device_t {
+    uint32_t tag;
+    uint32_t version;
+    struct hw_module_t* module;
+#ifdef __LP64__
+    uint64_t reserved[12];
+#else
+    uint32_t reserved[12];
+#endif
+    int (*close)(hw_device_t* device);
+};
+
+struct hw_module_methods_t {
+    int (*open)(const hw_module_t*, const char*, hw_device_t**);
+};
+
+extern "C" {
+int hw_get_module(const char* id, const hw_module_t** module);
+};
diff --git a/include/Android/nativebase/nativebase.h b/include/Android/nativebase/nativebase.h
new file mode 100644
index 0000000..c2e84d7
--- /dev/null
+++ b/include/Android/nativebase/nativebase.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <cutils/native_handle.h>
+
+#include <cstdint>
+#include <cstring>
+
+// clang-format off
+#define ANDROID_NATIVE_MAKE_CONSTANT(a, b, c, d) \
+    ((static_cast<unsigned int>(a) << 24) | \
+     (static_cast<unsigned int>(b) << 16) | \
+     (static_cast<unsigned int>(c) <<  8) | \
+     (static_cast<unsigned int>(d) <<  0))
+// clang-format on
+
+struct android_native_base_t {
+    int magic;
+    int version;
+    void* reserved[4];
+    void (*incRef)(android_native_base_t*);
+    void (*decRef)(android_native_base_t*);
+};
+
+#define ANDROID_NATIVE_BUFFER_MAGIC ANDROID_NATIVE_MAKE_CONSTANT('_', 'b', 'f', 'r')
+
+struct ANativeWindowBuffer {
+    ANativeWindowBuffer() {
+        common.magic = ANDROID_NATIVE_BUFFER_MAGIC;
+        common.version = sizeof(ANativeWindowBuffer);
+        memset(common.reserved, 0, sizeof(common.reserved));
+    }
+
+    android_native_base_t common;
+
+    int width;
+    int height;
+    int stride;
+    int format;
+    int usage_deprecated;
+    uintptr_t layerCount;
+
+    void* reserved[1];
+
+    const native_handle_t* handle;
+    uint64_t usage;
+
+    void* reserved_proc[8 - (sizeof(uint64_t) / sizeof(void*))];
+};
diff --git a/include/Android/sync/sync.h b/include/Android/sync/sync.h
new file mode 100644
index 0000000..1ae728a
--- /dev/null
+++ b/include/Android/sync/sync.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+extern "C" {
+int sync_wait(int fd, int timeout);
+};
diff --git a/include/Android/system/graphics.h b/include/Android/system/graphics.h
new file mode 100644
index 0000000..563287a
--- /dev/null
+++ b/include/Android/system/graphics.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+enum {
+    HAL_PIXEL_FORMAT_RGBA_8888 = 1,
+    HAL_PIXEL_FORMAT_RGBX_8888 = 2,
+    HAL_PIXEL_FORMAT_RGB_888 = 3,
+    HAL_PIXEL_FORMAT_RGB_565 = 4,
+    HAL_PIXEL_FORMAT_BGRA_8888 = 5,
+    HAL_PIXEL_FORMAT_RGBA_FP16 = 22,
+    HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED = 34,
+    HAL_PIXEL_FORMAT_YV12 = 842094169,
+};
diff --git a/include/Android/system/window.h b/include/Android/system/window.h
new file mode 100644
index 0000000..f986274
--- /dev/null
+++ b/include/Android/system/window.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <nativebase/nativebase.h>
+#include <system/graphics.h>
+
+#define ANDROID_NATIVE_WINDOW_MAGIC ANDROID_NATIVE_MAKE_CONSTANT('_', 'w', 'n', 'd')
+
+enum {
+    NATIVE_WINDOW_WIDTH = 0,
+    NATIVE_WINDOW_HEIGHT = 1,
+};
+
+struct ANativeWindow {
+    ANativeWindow() : flags(0), minSwapInterval(0), maxSwapInterval(0), xdpi(0), ydpi(0) {
+        common.magic = ANDROID_NATIVE_BUFFER_MAGIC;
+        common.version = sizeof(ANativeWindowBuffer);
+        memset(common.reserved, 0, sizeof(common.reserved));
+    }
+
+    android_native_base_t common;
+
+    const uint32_t flags;
+    const int minSwapInterval;
+    const int maxSwapInterval;
+    const float xdpi;
+    const float ydpi;
+    intptr_t oem[4];
+
+    int (*setSwapInterval)(ANativeWindow*, int);
+    int (*dequeueBuffer_DEPRECATED)(ANativeWindow*, ANativeWindowBuffer**);
+    int (*lockBuffer_DEPRECATED)(ANativeWindow*, ANativeWindowBuffer*);
+    int (*queueBuffer_DEPRECATED)(ANativeWindow*, ANativeWindowBuffer*);
+    int (*query)(const ANativeWindow*, int, int*);
+    int (*perform)(ANativeWindow*, int, ...);
+    int (*cancelBuffer_DEPRECATED)(ANativeWindow*, ANativeWindowBuffer*);
+    int (*dequeueBuffer)(ANativeWindow*, ANativeWindowBuffer**, int*);
+    int (*queueBuffer)(ANativeWindow*, ANativeWindowBuffer*, int);
+    int (*cancelBuffer)(ANativeWindow*, ANativeWindowBuffer*, int);
+};
+
+static inline int native_window_set_usage(ANativeWindow*, uint64_t) {
+    // No-op
+    return 0;
+}
+
+static inline int native_window_dequeue_buffer_and_wait(ANativeWindow* anw,
+                                                        ANativeWindowBuffer** anwb) {
+    return anw->dequeueBuffer_DEPRECATED(anw, anwb);
+}