Merge native

app/src/main/cpp/CMakeLists.txt

@@ -0,0 +1,53 @@
+project(ehviewer)
+cmake_minimum_required(VERSION 3.4.1)
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3 -fvisibility=hidden -fvisibility-inlines-hidden -ffunction-sections -fdata-sections -flto \
+           -mllvm -polly \
+           -mllvm -polly-run-dce \
+           -mllvm -polly-run-inliner \
+           -mllvm -polly-isl-arg=--no-schedule-serialize-sccs \
+           -mllvm -polly-ast-use-context \
+           -mllvm -polly-detect-keep-going \
+           -mllvm -polly-position=before-vectorizer \
+           -mllvm -polly-vectorizer=stripmine \
+           -mllvm -polly-detect-profitability-min-per-loop-insts=40 \
+           -mllvm -polly-invariant-load-hoisting")
+
+# Build GNUTLS libnettle
+add_subdirectory(nettle)
+
+# Configure libnettle support for libarchive
+include_directories(nettle)
+include_directories(.)
+set(HAVE_LIBNETTLE 1)
+set(HAVE_NETTLE_AES_H 1)
+set(HAVE_NETTLE_HMAC_H 1)
+set(HAVE_NETTLE_MD5_H 1)
+set(HAVE_NETTLE_PBKDF2_H 1)
+set(HAVE_NETTLE_RIPEMD160_H 1)
+set(HAVE_NETTLE_SHA_H 1)
+
+# Build liblzma
+add_subdirectory(liblzma)
+
+# Configure lzma support for libarchive
+include_directories(liblzma/src/liblzma/api)
+SET(HAVE_LIBLZMA 1)
+SET(HAVE_LZMA_H 1)
+SET(HAVE_LZMA_STREAM_ENCODER_MT 1)
+SET(HAVE_LZMADEC_H 1)
+SET(HAVE_LIBLZMADEC 1)
+
+# Configure libarchive link's static lib
+SET(LIBARCHIVE_CUSTOM_LIBS "liblzma" "nettle")
+
+# Build libarchive
+add_subdirectory(libarchive)
+
+# Build hippo's image lib
+add_subdirectory(image)
+
+# Build and link our app's native lib
+add_library(${PROJECT_NAME} SHARED main.c archive.c)
+target_include_directories(${PROJECT_NAME} PUBLIC image/image libarchive/libarchive)
+target_link_libraries(${PROJECT_NAME} image archive_static -Wl,--gc-sections)

app/src/main/cpp/archive.c

@@ -0,0 +1,196 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * EhViewer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <jni.h>
+#include <stdlib.h>
+#include <string.h>
+#include <android/log.h>
+#include <archive.h>
+#include <archive_entry.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <stdbool.h>
+
+#define LOG_TAG "libarchive_wrapper"
+#define LOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG ,__VA_ARGS__)
+#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG ,__VA_ARGS__)
+#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG ,__VA_ARGS__)
+#define LOGW(...) __android_log_print(ANDROID_LOG_WARN, LOG_TAG ,__VA_ARGS__)
+#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG ,__VA_ARGS__)
+#define LOGF(...) __android_log_print(ANDROID_LOG_FATAL, LOG_TAG ,__VA_ARGS__)
+
+static JNIEnv *env;
+static int cur_index = 0; // Current entry we haven't read any data from it yet
+static struct archive *arc = NULL;
+static bool need_encrypt = false;
+static char *passwd = NULL;
+static void *archiveAddr = NULL;
+static jlong archiveSize = 0;
+
+const char supportExt[9][6] = {
+        "jpeg",
+        "jpg",
+        "png",
+        "gif",
+        "webp",
+        "bmp",
+        "ico",
+        "wbmp",
+        "heif"
+};
+
+static int filename_is_playable_file(const char *name) {
+    const char *dotptr = strrchr(name, '.');
+    if (!dotptr++)
+        return false;
+    int i;
+    for (i = 0; i < 9; i++)
+        if (strcmp(dotptr, supportExt[i]) == 0)
+            return true;
+    return false;
+}
+
+static long archive_list_all_entries() {
+    struct archive_entry *entry;
+    long count = 0;
+    while (archive_read_next_header(arc, &entry) == ARCHIVE_OK) {
+        if (filename_is_playable_file(archive_entry_pathname(entry)))
+            count++;
+    }
+    if (!count)
+        LOGE("%s", archive_error_string(arc));
+    return count;
+}
+
+static void archive_release() {
+    if (arc) {
+        archive_read_close(arc);
+        archive_read_free(arc);
+        arc = NULL;
+    }
+}
+
+static int archive_alloc() {
+    archive_release();
+    arc = archive_read_new();
+    archive_read_support_format_all(arc);
+    archive_read_support_filter_all(arc);
+    if (passwd)
+        archive_read_add_passphrase(arc, passwd);
+    return archive_read_open_memory(arc, archiveAddr, archiveSize);
+}
+
+JNIEXPORT jint JNICALL
+Java_com_hippo_UriArchiveAccessor_openArchive(JNIEnv *_, jobject thiz, jlong addr, jlong size) {
+    archiveAddr = (void *) addr;
+    archiveSize = size;
+    env = _;
+    madvise(archiveAddr, archiveSize, MADV_SEQUENTIAL | MADV_WILLNEED);
+    long r = archive_alloc();
+    if (r) {
+        r = 0;
+        LOGE("%s%s", "Archive open failed:", archive_error_string(arc));
+    } else {
+        r = archive_list_all_entries();
+        LOGI("%s%ld%s", "Found ", r, " image entries in archive");
+
+        // We must read through the file|vm then we can know whether it is encrypted
+        int encryptRet = archive_read_has_encrypted_entries(arc);
+        switch (encryptRet) {
+            case 1: // At lease 1 encrypted entry
+                need_encrypt = true;
+                break;
+            case 0: // format supports but no encrypted entry found
+            default:
+                need_encrypt = false;
+        }
+        LOGI("%s%d", "archive_read_has_encrypted_entries returns ", encryptRet);
+    }
+    archive_release();
+    return r;
+}
+
+typedef struct Memarea {
+    void *buffer;
+    long size;
+} Memarea;
+
+JNIEXPORT jlong JNICALL
+Java_com_hippo_UriArchiveAccessor_extracttoOutputStream(JNIEnv *_, jobject thiz, jint index) {
+    struct archive_entry *entry;
+    int ret;
+    if (!arc || index < cur_index) {
+        archive_alloc();
+        cur_index = 0;
+    }
+    Memarea *memarea = malloc(sizeof(Memarea));
+    while (archive_read_next_header(arc, &entry) == ARCHIVE_OK) {
+        if (!filename_is_playable_file(archive_entry_pathname(entry)))
+            continue;
+        if (cur_index++ == index) {
+            memarea->size = archive_entry_size(entry);
+            memarea->buffer = malloc(memarea->size);
+            ret = archive_read_data(arc, memarea->buffer, memarea->size);
+            if (ret != memarea->size)
+                LOGE("%s", "No enough data read, WTF?");
+            if (ret < 0)
+                LOGE("%s%s", "Archive read failed:", archive_error_string(arc));
+            break;
+        }
+    }
+    return (jlong) memarea;
+}
+
+JNIEXPORT void JNICALL
+Java_com_hippo_UriArchiveAccessor_closeArchive(JNIEnv *jniEnv, jobject thiz) {
+    archive_release();
+    free(passwd);
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_hippo_UriArchiveAccessor_needPassword(JNIEnv *_, jobject thiz) {
+    return need_encrypt;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_hippo_UriArchiveAccessor_providePassword(JNIEnv *_, jobject thiz, jstring str) {
+    struct archive_entry *entry;
+    jboolean ret = true;
+    int len = (*env)->GetStringUTFLength(env, str);
+    if (passwd)
+        free(passwd);
+    passwd = calloc(len, sizeof(char));
+    strcpy(passwd, (*env)->GetStringUTFChars(env, str, NULL));
+    archive_alloc();
+    while (archive_read_next_header(arc, &entry) == ARCHIVE_OK) {
+        if (!filename_is_playable_file(archive_entry_pathname(entry)))
+            continue;
+        if (!archive_entry_is_encrypted(entry))
+            continue;
+        void *tmpBuf = malloc(4096);
+        if (archive_read_data(arc, tmpBuf, 4096) < ARCHIVE_OK) {
+            LOGE("%s%s", "Archive read failed:", archive_error_string(arc));
+            ret = false;
+        }
+        free(tmpBuf);
+        break;
+    }
+    archive_release();
+    return ret;
+}

app/src/main/cpp/image/CMakeLists.txt

@@ -0,0 +1,34 @@
+# Copyright 2018 Hippo Seven
+#
+# 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.
+
+cmake_minimum_required(VERSION 3.4.1)
+project(image C)
+
+set(IMAGE_SOURCES
+        image.c
+        image_utils.c
+        java_wrapper.c
+        )
+set(IMAGE_INCLUDES
+        ${CMAKE_CURRENT_SOURCE_DIR}
+        )
+set(IMAGE_LIBRARIES
+        log
+        jnigraphics
+        GLESv2
+        )
+
+add_library(image STATIC ${IMAGE_SOURCES})
+target_include_directories(image PRIVATE ${IMAGE_INCLUDES})
+target_link_libraries(image PRIVATE ${IMAGE_LIBRARIES})

app/src/main/cpp/image/image.c

@@ -0,0 +1,111 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * EhViewer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <android/data_space.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "image.h"
+#include "image_utils.h"
+
+void decodeCommon(IMAGE *image, SOURCE *src) {
+    image->src = src;
+    AImageDecoder *decoder = src->decoder;
+    image->isAnimated = AImageDecoder_isAnimated(decoder);
+    AImageDecoder_setDataSpace(decoder, ADATASPACE_SRGB);
+    AImageDecoder_setAndroidBitmapFormat(decoder, ANDROID_BITMAP_FORMAT_RGBA_8888);
+    const AImageDecoderHeaderInfo *headerInfo = AImageDecoder_getHeaderInfo(decoder);
+    image->height = AImageDecoderHeaderInfo_getHeight(headerInfo);
+    image->width = AImageDecoderHeaderInfo_getWidth(headerInfo);
+    image->alpha =
+            AImageDecoderHeaderInfo_getAlphaFlags(headerInfo) == ANDROID_BITMAP_FLAGS_ALPHA_PREMUL;
+    src->stride = AImageDecoder_getMinimumStride(decoder);
+    image->bufferLen = (int) (image->height * src->stride);
+    image->buffer = malloc(image->bufferLen);
+    if (image->isAnimated) {
+        AImageDecoder_setInternallyHandleDisposePrevious(decoder, false);
+        AImageDecoderFrameInfo *frameInfo = AImageDecoderFrameInfo_create();
+        AImageDecoder_getFrameInfo(decoder, frameInfo);
+        image->delay = (int) AImageDecoderFrameInfo_getDuration(frameInfo) / 1000000;
+        AImageDecoderFrameInfo_delete(frameInfo);
+    }
+    AImageDecoder_decodeImage(decoder, image->buffer, src->stride, image->bufferLen);
+    if (!image->isAnimated) {
+        recycleSource(image->src);
+        image->src = NULL;
+    }
+}
+
+IMAGE *createFromFd(int fd) {
+    AImageDecoder *decoder = NULL;
+    if (AImageDecoder_createFromFd(fd, &decoder) != ANDROID_IMAGE_DECODER_SUCCESS)
+        return NULL;
+    IMAGE *image = calloc(1, sizeof(IMAGE));
+    SOURCE *src = calloc(1, sizeof(SOURCE));
+    src->decoder = decoder;
+    src->fd = fd;
+    decodeCommon(image, src);
+    return image;
+}
+
+IMAGE *createFromAddr(void *addr, long size) {
+    AImageDecoder *decoder;
+    AImageDecoder_createFromBuffer((const void *) addr, size, &decoder);
+    IMAGE *image = calloc(1, sizeof(IMAGE));
+    SOURCE *src = calloc(1, sizeof(SOURCE));
+    src->decoder = decoder;
+    src->srcBuffer = addr;
+    decodeCommon(image, src);
+    return image;
+}
+
+IMAGE *create(int32_t width, int32_t height, const void *data) {
+    IMAGE *plain = calloc(1, sizeof(IMAGE));
+    void *buffer = NULL;
+    size_t length = width * height * 4;
+
+    buffer = malloc(length);
+    memcpy(buffer, data, length);
+
+    plain->width = width;
+    plain->height = height;
+    plain->buffer = buffer;
+    plain->bufferLen = (int) length;
+
+    return plain;
+}
+
+void render(IMAGE *image, int src_x, int src_y,
+            void *dst, int dst_w, int dst_h, int dst_x, int dst_y,
+            int width, int height) {
+    copy_pixels(image->buffer, image->width, image->height, src_x, src_y, dst, dst_w, dst_h, dst_x,
+                dst_y, width, height);
+}
+
+void advance(IMAGE *image) {
+    if (image->isAnimated) {
+        AImageDecoder_advanceFrame(image->src->decoder);
+        if (AImageDecoder_decodeImage(image->src->decoder, image->buffer, image->src->stride,
+                                      image->bufferLen) == ANDROID_IMAGE_DECODER_FINISHED) {
+            AImageDecoder_rewind(image->src->decoder);
+            AImageDecoder_decodeImage(image->src->decoder, image->buffer, image->src->stride,
+                                      image->bufferLen);
+        }
+    }
+}

app/src/main/cpp/image/image.h

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * EhViewer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef IMAGE_IMAGE_H
+#define IMAGE_IMAGE_H
+
+#include <android/imagedecoder.h>
+#include <stdbool.h>
+
+typedef struct {
+    AImageDecoder *decoder;
+    void *srcBuffer;
+    size_t stride;
+    int fd;
+} SOURCE;
+
+typedef struct {
+    int32_t width;
+    int32_t height;
+    void *buffer;
+    int bufferLen;
+    bool isAnimated;
+    bool alpha;
+    int delay;
+    SOURCE *src;
+} IMAGE;
+
+static void recycleSource(SOURCE *src) {
+    if (!src)
+        return;
+    AImageDecoder_delete(src->decoder);
+    free(src->srcBuffer);
+    free(src);
+}
+
+static void recycle(IMAGE *image) {
+    if (!image)
+        return;
+    recycleSource(image->src);
+    free(image->buffer);
+    free(image);
+}
+
+IMAGE *createFromFd(int fd);
+
+IMAGE *createFromAddr(void *addr, long size);
+
+IMAGE *create(int32_t width, int32_t height, const void *data);
+
+void render(IMAGE *image, int src_x, int src_y,
+            void *dst, int dst_w, int dst_h, int dst_x, int dst_y,
+            int width, int height);
+
+void advance(IMAGE *image);
+
+#endif /* IMAGE_IMAGE_H */

app/src/main/cpp/image/image_utils.c

@@ -0,0 +1,107 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * 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.
+ */
+
+#include "image_utils.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+bool copy_pixels(const void *src, int src_w, int src_h, int src_x, int src_y,
+                 void *dst, int dst_w, int dst_h, int dst_x, int dst_y,
+                 int width, int height) {
+    int left;
+    int line;
+    size_t line_stride;
+    int src_stride;
+    int src_pos;
+    int dst_pos;
+    size_t dst_blank_length;
+
+    // Sanitize
+    if (src_x < 0) {
+        width -= src_x;
+        dst_x -= src_x;
+        src_x = 0;
+    }
+    if (dst_x < 0) {
+        width -= dst_x;
+        src_x -= dst_x;
+        dst_x = 0;
+    }
+    if (width <= 0) {
+        return false;
+    }
+    if (src_y < 0) {
+        height -= src_y;
+        dst_y -= src_y;
+        src_y = 0;
+    }
+    if (dst_y < 0) {
+        height -= dst_y;
+        src_y -= dst_y;
+        dst_y = 0;
+    }
+    if (height <= 0) {
+        return false;
+    }
+    left = src_x + width - src_w;
+    if (left > 0) {
+        width -= left;
+    }
+    left = dst_x + width - dst_w;
+    if (left > 0) {
+        width -= left;
+    }
+    if (width <= 0) {
+        return false;
+    }
+    left = src_y + height - src_h;
+    if (left > 0) {
+        height -= left;
+    }
+    left = dst_y + height - dst_h;
+    if (left > 0) {
+        height -= left;
+    }
+    if (height <= 0) {
+        return false;
+    }
+
+    // Init
+    line_stride = (size_t) (width * 4);
+    src_stride = src_w * 4;
+    src_pos = src_y * src_stride + src_x * 4;
+    dst_pos = 0;
+
+    dst_blank_length = (size_t) (dst_y * dst_w + dst_x) * 4;
+
+    // First line
+    dst_pos += dst_blank_length;
+    memcpy(dst + dst_pos, src + src_pos, line_stride);
+    dst_pos += line_stride;
+    src_pos += src_stride;
+
+    // Other lines
+    dst_blank_length = (size_t) ((dst_w - width) * 4);
+    for (line = 1; line < height; line++) {
+        dst_pos += dst_blank_length;
+        memcpy(dst + dst_pos, src + src_pos, line_stride);
+        dst_pos += line_stride;
+        src_pos += src_stride;
+    }
+
+    return true;
+}

app/src/main/cpp/image/image_utils.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * EhViewer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef IMAGE_IMAGE_UTILS_H
+#define IMAGE_IMAGE_UTILS_H
+
+#include <stdbool.h>
+
+bool copy_pixels(const void *src, int src_w, int src_h, int src_x, int src_y,
+                 void *dst, int dst_w, int dst_h, int dst_x, int dst_y,
+                 int width, int height);
+
+#endif /* IMAGE_IMAGE_UTILS_H */

app/src/main/cpp/image/java_wrapper.c

@@ -0,0 +1,150 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * 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.
+ */
+
+#include <stdlib.h>
+#include <android/bitmap.h>
+#include <GLES2/gl2.h>
+#include <jni.h>
+
+#include "java_wrapper.h"
+#include "image.h"
+#include "log.h"
+
+static void *tile_buffer = NULL;
+
+static int jniGetFDFromFileDescriptor(JNIEnv *env, jobject fileDescriptor) {
+    jint fd = -1;
+    jclass fdClass = (*env)->FindClass(env, "java/io/FileDescriptor");
+
+    if (fdClass != NULL) {
+        jfieldID fdClassDescriptorFieldID = (*env)->GetFieldID(env, fdClass, "descriptor", "I");
+        if (fdClassDescriptorFieldID != NULL && fileDescriptor != NULL) {
+            fd = (*env)->GetIntField(env, fileDescriptor, fdClassDescriptorFieldID);
+        }
+    }
+
+    return fd;
+}
+
+jobject create_image_object(JNIEnv *env, void *ptr, int format, int width, int height) {
+    jclass image_clazz;
+    jmethodID constructor;
+
+    image_clazz = (*env)->FindClass(env, "com/hippo/image/Image");
+    constructor = (*env)->GetMethodID(env, image_clazz, "<init>", "(JIII)V");
+    return (*env)->NewObject(env, image_clazz, constructor,
+                             (jlong) (uintptr_t) ptr, (jint) format, (jint) width,
+                             (jint) height);
+}
+
+JNIEXPORT jobject JNICALL
+Java_com_hippo_image_Image_nativeDecodeFdInt(JNIEnv *env, jclass clazz, jint fd) {
+    IMAGE *image = createFromFd(fd);
+    if (!image)
+        return NULL;
+    return create_image_object(env, image, image->isAnimated, image->width, image->height);
+}
+
+JNIEXPORT jobject JNICALL
+Java_com_hippo_image_Image_nativeDecode(JNIEnv *env, jclass clazz, jobject fd) {
+    return Java_com_hippo_image_Image_nativeDecodeFdInt(env, clazz,
+                                                        jniGetFDFromFileDescriptor(env, fd));
+}
+
+JNIEXPORT jobject JNICALL
+Java_com_hippo_image_Image_nativeCreate(JNIEnv *env, jclass clazz, jobject bitmap) {
+    AndroidBitmapInfo info;
+    void *pixels = NULL;
+    void *image = NULL;
+
+    AndroidBitmap_getInfo(env, bitmap, &info);
+    AndroidBitmap_lockPixels(env, bitmap, &pixels);
+
+    image = create(info.width, info.height, pixels);
+    AndroidBitmap_unlockPixels(env, bitmap);
+    return create_image_object(env, image, 0, info.width, info.height);
+}
+
+JNIEXPORT void JNICALL
+Java_com_hippo_image_Image_nativeRender(JNIEnv *env, jclass clazz, jlong ptr, jint src_x,
+                                        jint src_y, jobject dst, jint dst_x, jint dst_y, jint width,
+                                        jint height) {
+    AndroidBitmapInfo info;
+    void *pixels = NULL;
+
+    AndroidBitmap_getInfo(env, dst, &info);
+    AndroidBitmap_lockPixels(env, dst, &pixels);
+
+    render((IMAGE *) ptr, src_x, src_y, pixels, info.width, info.height, dst_x, dst_y, width,
+           height);
+
+    AndroidBitmap_unlockPixels(env, dst);
+}
+
+JNIEXPORT void JNICALL
+Java_com_hippo_image_Image_nativeTexImage(JNIEnv *env, jclass clazz, jlong ptr, jboolean init,
+                                          jint src_x, jint src_y, jint width, jint height) {
+    if (width * height > IMAGE_TILE_MAX_SIZE)
+        return;
+
+    render((IMAGE *) ptr, src_x, src_y, tile_buffer, width, height, 0, 0, width, height);
+
+    if (init) {
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
+                     tile_buffer);
+    } else {
+        glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE,
+                        tile_buffer);
+    }
+}
+
+JNIEXPORT void JNICALL
+Java_com_hippo_image_Image_nativeAdvance(JNIEnv *env, jclass clazz, jlong ptr) {
+    advance((IMAGE *) ptr);
+}
+
+JNIEXPORT jint JNICALL
+Java_com_hippo_image_Image_nativeGetDelay(JNIEnv *env, jclass clazz, jlong ptr) {
+    return ((IMAGE *) ptr)->delay;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_hippo_image_Image_nativeIsOpaque(JNIEnv *env, jclass clazz, jlong ptr) {
+    return ((IMAGE *) ptr)->alpha;
+}
+
+JNIEXPORT void JNICALL
+Java_com_hippo_image_Image_nativeRecycle(JNIEnv *env, jclass clazz, jlong ptr) {
+    recycle((IMAGE *) ptr);
+}
+
+bool image_onLoad() {
+    tile_buffer = malloc(IMAGE_TILE_MAX_SIZE * 4);
+    return tile_buffer != NULL;
+}
+
+void image_onUnload() {
+    free(tile_buffer);
+    tile_buffer = NULL;
+}
+
+JNIEXPORT jobject JNICALL
+Java_com_hippo_image_Image_nativeDecodeAddr(JNIEnv *env, jclass clazz, jlong addr) {
+    Memarea *memarea = (Memarea *) addr;
+    IMAGE *image = createFromAddr(memarea->buffer, memarea->size);
+    free(memarea);
+    return create_image_object(env, image, image->isAnimated, image->width, image->height);
+}

app/src/main/cpp/image/java_wrapper.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * EhViewer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef IMAGE_JAVA_WRAPPER_H
+#define IMAGE_JAVA_WRAPPER_H
+
+#include <stdbool.h>
+
+#define IMAGE_TILE_MAX_SIZE (512 * 512)
+
+typedef struct Memarea {
+    void *buffer;
+    long size;
+} Memarea;
+
+bool image_onLoad();
+
+void image_onUnload();
+
+#endif /* IMAGE_JAVA_WRAPPER_H */

app/src/main/cpp/image/log.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * 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.
+ */
+
+#ifndef LOG_H
+#define LOG_H
+
+#include <android/log.h>
+
+#define TAG "ImageDecoder_wrapper"
+#define LOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, TAG ,__VA_ARGS__)
+#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, TAG ,__VA_ARGS__)
+#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, TAG ,__VA_ARGS__)
+#define LOGW(...) __android_log_print(ANDROID_LOG_WARN, TAG ,__VA_ARGS__)
+#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, TAG ,__VA_ARGS__)
+#define LOGF(...) __android_log_print(ANDROID_LOG_FATAL, TAG ,__VA_ARGS__)
+
+#endif /* LOG_H */

app/src/main/cpp/main.c

@@ -0,0 +1,65 @@
+/*
+ * Copyright 2022 Tarsin Norbin
+ *
+ * This file is part of EhViewer
+ *
+ * EhViewer is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * EhViewer is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * EhViewer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <jni.h>
+#include <archive.h>
+#include <lzma.h>
+#include <zlib.h>
+#include <nettle/config.h>
+
+#include "image/java_wrapper.h"
+
+JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved) {
+    JNIEnv *env;
+
+    if ((*vm)->GetEnv(vm, (void **) (&env), JNI_VERSION_1_6) != JNI_OK) {
+        return JNI_ERR;
+    }
+
+    if (!image_onLoad(vm)) {
+        return JNI_ERR;
+    }
+
+    return JNI_VERSION_1_6;
+}
+
+JNIEXPORT void JNICALL
+JNI_OnUnload(JavaVM *vm, void *reserved) {
+    image_onUnload();
+}
+
+JNIEXPORT jstring JNICALL
+Java_com_hippo_Native_getlibarchiveVersion(JNIEnv *env, jclass clazz) {
+    return (*env)->NewStringUTF(env, ARCHIVE_VERSION_STRING);
+}
+
+JNIEXPORT jstring JNICALL
+Java_com_hippo_Native_getliblzmaVersion(JNIEnv *env, jclass clazz) {
+    return (*env)->NewStringUTF(env, lzma_version_string());
+}
+
+JNIEXPORT jstring JNICALL
+Java_com_hippo_Native_getzlibVersion(JNIEnv *env, jclass clazz) {
+    return (*env)->NewStringUTF(env, ZLIB_VERSION);
+}
+
+JNIEXPORT jstring JNICALL
+Java_com_hippo_Native_getnettleVersion(JNIEnv *env, jclass clazz) {
+    return (*env)->NewStringUTF(env, PACKAGE_STRING);
+}

app/src/main/cpp/nettle/CMakeLists.txt

@@ -0,0 +1,239 @@
+cmake_minimum_required(VERSION 3.4.1)
+project(nettle C)
+
+set(LIBNETTLE_DEFINITIONS
+        -DHAVE_CONFIG_H)
+
+set(LIBNETTLE_SOURCES
+        nettle/aes-decrypt-internal.c
+        nettle/aes-decrypt.c
+        nettle/aes-decrypt-table.c
+        nettle/aes128-decrypt.c
+        nettle/aes192-decrypt.c
+        nettle/aes256-decrypt.c
+        nettle/aes-encrypt-internal.c
+        nettle/aes-encrypt.c
+        nettle/aes-encrypt-table.c
+        nettle/aes128-encrypt.c
+        nettle/aes192-encrypt.c
+        nettle/aes256-encrypt.c
+        nettle/aes-invert-internal.c
+        nettle/aes-set-key-internal.c
+        nettle/aes-set-encrypt-key.c
+        nettle/aes-set-decrypt-key.c
+        nettle/aes128-set-encrypt-key.c
+        nettle/aes128-set-decrypt-key.c
+        nettle/aes128-meta.c
+        nettle/aes192-set-encrypt-key.c
+        nettle/aes192-set-decrypt-key.c
+        nettle/aes192-meta.c
+        nettle/aes256-set-encrypt-key.c
+        nettle/aes256-set-decrypt-key.c
+        nettle/aes256-meta.c
+        nettle/nist-keywrap.c
+        nettle/arcfour.c
+        nettle/arcfour-crypt.c
+        nettle/arctwo.c
+        nettle/arctwo-meta.c
+        nettle/blowfish.c
+        nettle/blowfish-bcrypt.c
+        nettle/base16-encode.c
+        nettle/base16-decode.c
+        nettle/base16-meta.c
+        nettle/base64-encode.c
+        nettle/base64-decode.c
+        nettle/base64-meta.c
+        nettle/base64url-encode.c
+        nettle/base64url-decode.c
+        nettle/base64url-meta.c
+        nettle/buffer.c
+        nettle/buffer-init.c
+        nettle/camellia-crypt-internal.c
+        nettle/camellia-table.c
+        nettle/camellia-absorb.c
+        nettle/camellia-invert-key.c
+        nettle/camellia128-set-encrypt-key.c
+        nettle/camellia128-crypt.c
+        nettle/camellia128-set-decrypt-key.c
+        nettle/camellia128-meta.c
+        nettle/camellia192-meta.c
+        nettle/camellia256-set-encrypt-key.c
+        nettle/camellia256-crypt.c
+        nettle/camellia256-set-decrypt-key.c
+        nettle/camellia256-meta.c
+        nettle/cast128.c
+        nettle/cast128-meta.c
+        nettle/cbc.c
+        nettle/cbc-aes128-encrypt.c
+        nettle/cbc-aes192-encrypt.c
+        nettle/cbc-aes256-encrypt.c
+        nettle/ccm.c
+        nettle/ccm-aes128.c
+        nettle/ccm-aes192.c
+        nettle/ccm-aes256.c
+        nettle/cfb.c
+        nettle/siv-cmac.c
+        nettle/siv-cmac-aes128.c
+        nettle/siv-cmac-aes256.c
+        nettle/cnd-memcpy.c
+        nettle/chacha-crypt.c
+        nettle/chacha-core-internal.c
+        nettle/chacha-poly1305.c
+        nettle/chacha-poly1305-meta.c
+        nettle/chacha-set-key.c
+        nettle/chacha-set-nonce.c
+        nettle/ctr.c
+        nettle/ctr16.c
+        nettle/des.c
+        nettle/des3.c
+        nettle/eax.c
+        nettle/eax-aes128.c
+        nettle/eax-aes128-meta.c
+        nettle/ghash-set-key.c
+        nettle/ghash-update.c
+        nettle/gcm.c
+        nettle/gcm-aes.c
+        nettle/gcm-aes128.c
+        nettle/gcm-aes128-meta.c
+        nettle/gcm-aes192.c
+        nettle/gcm-aes192-meta.c
+        nettle/gcm-aes256.c
+        nettle/gcm-aes256-meta.c
+        nettle/gcm-camellia128.c
+        nettle/gcm-camellia128-meta.c
+        nettle/gcm-camellia256.c
+        nettle/gcm-camellia256-meta.c
+        nettle/cmac.c
+        nettle/cmac64.c
+        nettle/cmac-aes128.c
+        nettle/cmac-aes256.c
+        nettle/cmac-des3.c
+        nettle/cmac-aes128-meta.c
+        nettle/cmac-aes256-meta.c
+        nettle/cmac-des3-meta.c
+        nettle/gost28147.c
+        nettle/gosthash94.c
+        nettle/gosthash94-meta.c
+        nettle/hmac.c
+        nettle/hmac-gosthash94.c
+        nettle/hmac-md5.c
+        nettle/hmac-ripemd160.c
+        nettle/hmac-sha1.c
+        nettle/hmac-sha224.c
+        nettle/hmac-sha256.c
+        nettle/hmac-sha384.c
+        nettle/hmac-sha512.c
+        nettle/hmac-streebog.c
+        nettle/hmac-sm3.c
+        nettle/hmac-md5-meta.c
+        nettle/hmac-ripemd160-meta.c
+        nettle/hmac-sha1-meta.c
+        nettle/hmac-sha224-meta.c
+        nettle/hmac-sha256-meta.c
+        nettle/hmac-sha384-meta.c
+        nettle/hmac-sha512-meta.c
+        nettle/hmac-streebog-meta.c
+        nettle/hmac-sm3-meta.c
+        nettle/knuth-lfib.c
+        nettle/hkdf.c
+        nettle/md2.c
+        nettle/md2-meta.c
+        nettle/md4.c
+        nettle/md4-meta.c
+        nettle/md5.c
+        nettle/md5-compress.c
+        nettle/md5-compat.c
+        nettle/md5-meta.c
+        nettle/memeql-sec.c
+        nettle/memxor.c
+        nettle/memxor3.c
+        nettle/nettle-lookup-hash.c
+        nettle/nettle-meta-aeads.c
+        nettle/nettle-meta-armors.c
+        nettle/nettle-meta-ciphers.c
+        nettle/nettle-meta-hashes.c
+        nettle/nettle-meta-macs.c
+        nettle/pbkdf2.c
+        nettle/pbkdf2-hmac-gosthash94.c
+        nettle/pbkdf2-hmac-sha1.c
+        nettle/pbkdf2-hmac-sha256.c
+        nettle/pbkdf2-hmac-sha384.c
+        nettle/pbkdf2-hmac-sha512.c
+        nettle/poly1305-aes.c
+        nettle/poly1305-internal.c
+        nettle/realloc.c
+        nettle/ripemd160.c
+        nettle/ripemd160-compress.c
+        nettle/ripemd160-meta.c
+        nettle/salsa20-core-internal.c
+        nettle/salsa20-crypt-internal.c
+        nettle/salsa20-crypt.c
+        nettle/salsa20r12-crypt.c
+        nettle/salsa20-set-key.c
+        nettle/salsa20-set-nonce.c
+        nettle/salsa20-128-set-key.c
+        nettle/salsa20-256-set-key.c
+        nettle/sha1.c
+        nettle/sha1-compress.c
+        nettle/sha1-meta.c
+        nettle/sha256.c
+        nettle/sha256-compress.c
+        nettle/sha224-meta.c
+        nettle/sha256-meta.c
+        nettle/sha512.c
+        nettle/sha512-compress.c
+        nettle/sha384-meta.c
+        nettle/sha512-meta.c
+        nettle/sha512-224-meta.c
+        nettle/sha512-256-meta.c
+        nettle/sha3.c
+        nettle/sha3-permute.c
+        nettle/sha3-224.c
+        nettle/sha3-224-meta.c
+        nettle/sha3-256.c
+        nettle/sha3-256-meta.c
+        nettle/sha3-384.c
+        nettle/sha3-384-meta.c
+        nettle/sha3-512.c
+        nettle/sha3-512-meta.c
+        nettle/shake256.c
+        nettle/sm3.c
+        nettle/sm3-meta.c
+        nettle/serpent-set-key.c
+        nettle/serpent-encrypt.c
+        nettle/serpent-decrypt.c
+        nettle/serpent-meta.c
+        nettle/streebog.c
+        nettle/streebog-meta.c
+        nettle/twofish.c
+        nettle/twofish-meta.c
+        nettle/umac-nh.c
+        nettle/umac-nh-n.c
+        nettle/umac-l2.c
+        nettle/umac-l3.c
+        nettle/umac-poly64.c
+        nettle/umac-poly128.c
+        nettle/umac-set-key.c
+        nettle/umac32.c
+        nettle/umac64.c
+        nettle/umac96.c
+        nettle/umac128.c
+        nettle/version.c
+        nettle/write-be32.c
+        nettle/write-le32.c
+        nettle/write-le64.c
+        nettle/yarrow256.c
+        nettle/yarrow_key_event.c
+        nettle/xts.c
+        nettle/xts-aes128.c
+        nettle/xts-aes256.c
+        )
+
+set(LIBNETTLE_INCLUDES
+        ${CMAKE_CURRENT_SOURCE_DIR}
+        ${CMAKE_CURRENT_SOURCE_DIR}/nettle
+        )
+
+add_library(nettle STATIC ${LIBNETTLE_SOURCES})
+target_include_directories(nettle PUBLIC ${LIBNETTLE_INCLUDES})
+target_compile_definitions(nettle PRIVATE ${LIBNETTLE_DEFINITIONS})

app/src/main/cpp/nettle/config.h

@@ -0,0 +1,275 @@
+/* config.h.  Generated from config.h.in by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* Define to 1 if using 'alloca.c'. */
+/* #undef C_ALLOCA */
+
+/* Define to 1 if you have 'alloca', as a function or macro. */
+#define HAVE_ALLOCA 1
+
+/* Define to 1 if <alloca.h> works. */
+#define HAVE_ALLOCA_H 1
+
+/* Define if __builtin_bswap64 is available */
+#define HAVE_BUILTIN_BSWAP64 1
+
+/* Define if clock_gettime is available */
+#define HAVE_CLOCK_GETTIME 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define if fcntl file locking is available */
+#define HAVE_FCNTL_LOCKING 1
+
+/* Define if the compiler understands __attribute__ */
+#define HAVE_GCC_ATTRIBUTE 1
+
+/* Define to 1 if you have the `getline' function. */
+#define HAVE_GETLINE 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have dlopen (with -ldl). */
+#define HAVE_LIBDL 1
+
+/* Define to 1 if you have the `gmp' library (-lgmp). */
+/* #undef HAVE_LIBGMP */
+
+/* Define if compiler and linker supports __attribute__ ifunc */
+#define HAVE_LINK_IFUNC 1
+
+/* Define to 1 if you have the <malloc.h> header file. */
+#define HAVE_MALLOC_H 1
+
+/* Define to 1 each of the following for which a native (ie. CPU specific)
+    implementation of the corresponding routine exists.  */
+/* #undef HAVE_NATIVE_memxor3 */
+/* #undef HAVE_NATIVE_aes_decrypt */
+/* #undef HAVE_NATIVE_aes_encrypt */
+/* #undef HAVE_NATIVE_aes128_decrypt */
+/* #undef HAVE_NATIVE_aes128_encrypt */
+/* #undef HAVE_NATIVE_aes128_invert_key */
+/* #undef HAVE_NATIVE_aes128_set_decrypt_key */
+/* #undef HAVE_NATIVE_aes128_set_encrypt_key */
+/* #undef HAVE_NATIVE_aes192_decrypt */
+/* #undef HAVE_NATIVE_aes192_encrypt */
+/* #undef HAVE_NATIVE_aes192_invert_key */
+/* #undef HAVE_NATIVE_aes192_set_decrypt_key */
+/* #undef HAVE_NATIVE_aes192_set_encrypt_key */
+/* #undef HAVE_NATIVE_aes256_decrypt */
+/* #undef HAVE_NATIVE_aes256_encrypt */
+/* #undef HAVE_NATIVE_aes256_invert_key */
+/* #undef HAVE_NATIVE_aes256_set_decrypt_key */
+/* #undef HAVE_NATIVE_aes256_set_encrypt_key */
+/* #undef HAVE_NATIVE_cbc_aes128_encrypt */
+/* #undef HAVE_NATIVE_cbc_aes192_encrypt */
+/* #undef HAVE_NATIVE_cbc_aes256_encrypt */
+/* #undef HAVE_NATIVE_chacha_core */
+/* #undef HAVE_NATIVE_chacha_2core */
+/* #undef HAVE_NATIVE_chacha_3core */
+/* #undef HAVE_NATIVE_chacha_4core */
+/* #undef HAVE_NATIVE_fat_chacha_2core */
+/* #undef HAVE_NATIVE_fat_chacha_3core */
+/* #undef HAVE_NATIVE_fat_chacha_4core */
+/* #undef HAVE_NATIVE_ecc_curve25519_modp */
+/* #undef HAVE_NATIVE_ecc_curve448_modp */
+/* #undef HAVE_NATIVE_ecc_secp192r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp192r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp224r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp224r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp256r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp256r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp384r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp384r1_redc */
+/* #undef HAVE_NATIVE_ecc_secp521r1_modp */
+/* #undef HAVE_NATIVE_ecc_secp521r1_redc */
+/* #undef HAVE_NATIVE_ghash_set_key */
+/* #undef HAVE_NATIVE_ghash_update */
+/* #undef HAVE_NATIVE_salsa20_core */
+/* #undef HAVE_NATIVE_salsa20_2core */
+/* #undef HAVE_NATIVE_fat_salsa20_2core */
+/* #undef HAVE_NATIVE_sha1_compress */
+/* #undef HAVE_NATIVE_sha256_compress */
+/* #undef HAVE_NATIVE_sha512_compress */
+/* #undef HAVE_NATIVE_sha3_permute */
+/* #undef HAVE_NATIVE_umac_nh */
+/* #undef HAVE_NATIVE_umac_nh_n */
+
+/* Define to 1 if you have the <openssl/ecdsa.h> header file. */
+/* #undef HAVE_OPENSSL_ECDSA_H */
+
+/* Define to 1 if you have the <openssl/evp.h> header file. */
+/* #undef HAVE_OPENSSL_EVP_H */
+
+/* Define to 1 if you have the `secure_getenv' function. */
+/* #undef HAVE_SECURE_GETENV */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdio.h> header file. */
+#define HAVE_STDIO_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the `strerror' function. */
+#define HAVE_STRERROR 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the <valgrind/memcheck.h> header file. */
+/* #undef HAVE_VALGRIND_MEMCHECK_H */
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "nettle-bugs@lists.lysator.liu.se"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "nettle"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "nettle 3.8"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "nettle"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "3.8"
+
+/* The size of `long', as computed by sizeof. */
+#define SIZEOF_LONG __SIZEOF_LONG__
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T __SIZEOF_SIZE_T__
+
+/* If using the C implementation of alloca, define if you know the
+   direction of stack growth for your system; otherwise it will be
+   automatically deduced at runtime.
+	STACK_DIRECTION > 0 => grows toward higher addresses
+	STACK_DIRECTION < 0 => grows toward lower addresses
+	STACK_DIRECTION = 0 => direction of growth unknown */
+/* #undef STACK_DIRECTION */
+
+/* Define to 1 if all of the C90 standard headers exist (not just the ones
+   required in a freestanding environment). This macro is provided for
+   backward compatibility; new code need not use it. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. This
+   macro is obsolete. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Defined if public key features are enabled */
+/* #undef WITH_HOGWEED */
+
+/* Define if you have openssl's libcrypto (used for benchmarking) */
+/* #undef WITH_OPENSSL */
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+   significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+#  define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* #  undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+/* #undef gid_t */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+/* #undef uid_t */
+
+/* AIX requires this to be the first thing in the file.  */
+#ifndef __GNUC__
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+ #pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+#   endif
+#  endif
+/* Needed for alloca on windows */
+#  if HAVE_MALLOC_H
+#   include <malloc.h>
+#  endif
+# endif
+#else /* defined __GNUC__ */
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+/* Needed for alloca on windows, also with gcc */
+#  if HAVE_MALLOC_H
+#   include <malloc.h>
+#  endif
+# endif
+#endif
+
+
+#if HAVE_STRERROR
+#define STRERROR strerror
+#else
+#define STRERROR(x) (sys_errlist[x])
+#endif
+
+
+#if __GNUC__ && HAVE_GCC_ATTRIBUTE
+# define NORETURN __attribute__ ((__noreturn__))
+# define PRINTF_STYLE(f, a) __attribute__ ((__format__ (__printf__, f, a)))
+# define UNUSED __attribute__ ((__unused__))
+#else
+# define NORETURN
+# define PRINTF_STYLE(f, a)
+# define UNUSED
+#endif
+
+
+#if defined(__x86_64__) || defined(__arch64__)
+# define HAVE_NATIVE_64_BIT 1
+#else
+/* Needs include of <limits.h> before use. */
+# define HAVE_NATIVE_64_BIT (SIZEOF_LONG * CHAR_BIT >= 64)
+#endif
+

app/src/main/cpp/nettle/keymap.h

@@ -0,0 +1 @@
+ 

app/src/main/cpp/nettle/rotors.h

@@ -0,0 +1 @@
+ 

app/src/main/cpp/nettle/version.h

@@ -0,0 +1,64 @@
+/* version.h
+
+   Information about library version.
+
+   Copyright (C) 2015 Red Hat, Inc.
+   Copyright (C) 2015 Niels Möller
+
+   This file is part of GNU Nettle.
+
+   GNU Nettle is free software: you can redistribute it and/or
+   modify it under the terms of either:
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at your
+       option) any later version.
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at your
+       option) any later version.
+
+   or both in parallel, as here.
+
+   GNU Nettle is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see http://www.gnu.org/licenses/.
+*/
+
+#ifndef NETTLE_VERSION_H_INCLUDED
+#define NETTLE_VERSION_H_INCLUDED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Individual version numbers in decimal */
+#define NETTLE_VERSION_MAJOR 3
+#define NETTLE_VERSION_MINOR 8
+
+#define NETTLE_USE_MINI_GMP 0
+
+/* We need a preprocessor constant for GMP_NUMB_BITS, simply using
+   sizeof(mp_limb_t) * CHAR_BIT is not good enough. */
+#if NETTLE_USE_MINI_GMP
+# define GMP_NUMB_BITS n/a
+#endif
+
+int
+nettle_version_major (void);
+
+int
+nettle_version_minor (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NETTLE_VERSION_H_INCLUDED */