1/*
2 * Copyright (C) 2015 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#ifndef BITMAP_H_
17#define BITMAP_H_
18
19#include <jni.h>
20#include <android/bitmap.h>
21#include <SkBitmap.h>
22#include <SkColorTable.h>
23#include <SkImageInfo.h>
24#include <SkPixelRef.h>
25
26namespace android {
27
28class Bitmap;
29
30namespace bitmap {
31
32enum BitmapCreateFlags {
33    kBitmapCreateFlag_None = 0x0,
34    kBitmapCreateFlag_Mutable = 0x1,
35    kBitmapCreateFlag_Premultiplied = 0x2,
36};
37
38jobject createBitmap(JNIEnv* env, Bitmap* bitmap,
39            int bitmapCreateFlags, jbyteArray ninePatchChunk = NULL,
40            jobject ninePatchInsets = NULL, int density = -1);
41
42
43void toSkBitmap(jlong bitmapHandle, SkBitmap* outBitmap);
44
45Bitmap& toBitmap(JNIEnv* env, jobject bitmap);
46Bitmap& toBitmap(JNIEnv* env, jlong bitmapHandle);
47
48// NDK access
49void imageInfo(JNIEnv* env, jobject bitmap, AndroidBitmapInfo* info);
50// Returns a pointer to the pixels or nullptr if the bitmap is not valid
51void* lockPixels(JNIEnv* env, jobject bitmap);
52// Returns true if unlocked, false if the bitmap is no longer valid (destroyed)
53bool unlockPixels(JNIEnv* env, jobject bitmap);
54
55/** Reinitialize a bitmap. bitmap must already have its SkAlphaType set in
56    sync with isPremultiplied
57*/
58void reinitBitmap(JNIEnv* env, jobject javaBitmap, const SkImageInfo& info,
59        bool isPremultiplied);
60
61int getBitmapAllocationByteCount(JNIEnv* env, jobject javaBitmap);
62
63} // namespace bitmap
64
65} // namespace android
66
67#endif /* BITMAP_H_ */
68