2 * Copyright (C) 2009 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef ANDROID_BITMAP_H
18 #define ANDROID_BITMAP_H
27 #define ANDROID_BITMAP_RESUT_SUCCESS 0
28 #define ANDROID_BITMAP_RESULT_BAD_PARAMETER -1
29 #define ANDROID_BITMAP_RESULT_JNI_EXCEPTION -2
30 #define ANDROID_BITMAP_RESULT_ALLOCATION_FAILED -3
32 enum AndroidBitmapFormat {
33 ANDROID_BITMAP_FORMAT_NONE = 0,
34 ANDROID_BITMAP_FORMAT_RGBA_8888 = 1,
35 ANDROID_BITMAP_FORMAT_RGB_565 = 4,
36 ANDROID_BITMAP_FORMAT_RGBA_4444 = 7,
37 ANDROID_BITMAP_FORMAT_A_8 = 8,
45 uint32_t flags; // 0 for now
49 * Given a java bitmap object, fill out the AndroidBitmap struct for it.
50 * If the call fails, the info parameter will be ignored
52 int AndroidBitmap_getInfo(JNIEnv* env, jobject jbitmap,
53 AndroidBitmapInfo* info);
56 * Given a java bitmap object, attempt to lock the pixel address.
57 * Locking will ensure that the memory for the pixels will not move
58 * until the unlockPixels call, and ensure that, if the pixels had been
59 * previously purged, they will have been restored.
61 * If this call succeeds, it must be balanced by a call to
62 * AndroidBitmap_unlockPixels, after which time the address of the pixels should
65 * If this succeeds, *addrPtr will be set to the pixel address. If the call
66 * fails, addrPtr will be ignored.
68 int AndroidBitmap_lockPixels(JNIEnv* env, jobject jbitmap, void** addrPtr);
71 * Call this to balanace a successful call to AndroidBitmap_lockPixels
73 int AndroidBitmap_unlockPixels(JNIEnv* env, jobject jbitmap);