1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef PDF_UTILS_H_
18#define PDF_UTILS_H_
19
20#include "jni.h"
21
22namespace android {
23
24int getBlock(void* param, unsigned long position, unsigned char* outBuffer,
25        unsigned long size);
26
27bool forwardPdfiumError(JNIEnv* env);
28
29#define HANDLE_PDFIUM_ERROR_STATE(env)                         \
30        {                                                      \
31            bool isExceptionPending = forwardPdfiumError(env); \
32            if (isExceptionPending) {                          \
33                return;                                        \
34            }                                                  \
35        }
36
37#define HANDLE_PDFIUM_ERROR_STATE_WITH_RET_CODE(env, retCode)  \
38        {                                                      \
39            bool isExceptionPending = forwardPdfiumError(env); \
40            if (isExceptionPending) {                          \
41                return retCode;                                \
42            }                                                  \
43        }
44
45jlong nativeOpen(JNIEnv* env, jclass thiz, jint fd, jlong size);
46void nativeClose(JNIEnv* env, jclass thiz, jlong documentPtr);
47
48jint nativeGetPageCount(JNIEnv* env, jclass thiz, jlong documentPtr);
49jboolean nativeScaleForPrinting(JNIEnv* env, jclass thiz, jlong documentPtr);
50
51};
52
53#endif /* PDF_UTILS_H_ */
54