Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 | #include <android/bitmap.h> |
| 18 | #include "JNIHelpers.h" |
| 19 | #include "utils/log.h" |
| 20 | #include "FrameSequence.h" |
| 21 | |
| 22 | #include "FrameSequenceJNI.h" |
| 23 | |
| 24 | #define JNI_PACKAGE "android/support/rastermill" |
| 25 | |
| 26 | static struct { |
| 27 | jclass clazz; |
| 28 | jmethodID ctor; |
| 29 | } gFrameSequenceClassInfo; |
| 30 | |
| 31 | //////////////////////////////////////////////////////////////////////////////// |
| 32 | // Frame sequence |
| 33 | //////////////////////////////////////////////////////////////////////////////// |
| 34 | |
| 35 | static jobject createJavaFrameSequence(JNIEnv* env, FrameSequence* frameSequence) { |
| 36 | if (!frameSequence) { |
| 37 | return NULL; |
| 38 | } |
| 39 | return env->NewObject(gFrameSequenceClassInfo.clazz, gFrameSequenceClassInfo.ctor, |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 40 | reinterpret_cast<jlong>(frameSequence), |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 41 | frameSequence->getWidth(), |
| 42 | frameSequence->getHeight(), |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 43 | frameSequence->isOpaque(), |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 44 | frameSequence->getFrameCount(), |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 45 | frameSequence->getDefaultLoopCount()); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 46 | } |
| 47 | |
| 48 | static jobject nativeDecodeByteArray(JNIEnv* env, jobject clazz, |
| 49 | jbyteArray byteArray, jint offset, jint length) { |
| 50 | jbyte* bytes = reinterpret_cast<jbyte*>(env->GetPrimitiveArrayCritical(byteArray, NULL)); |
| 51 | if (bytes == NULL) { |
| 52 | jniThrowException(env, ILLEGAL_STATE_EXEPTION, |
| 53 | "couldn't read array bytes"); |
| 54 | return NULL; |
| 55 | } |
Chris Craik | 9d34bc3 | 2014-04-09 16:31:18 -0700 | [diff] [blame] | 56 | MemoryStream stream(bytes + offset, length); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 57 | FrameSequence* frameSequence = FrameSequence::create(&stream); |
| 58 | env->ReleasePrimitiveArrayCritical(byteArray, bytes, 0); |
| 59 | return createJavaFrameSequence(env, frameSequence); |
| 60 | } |
| 61 | |
| 62 | static jobject nativeDecodeStream(JNIEnv* env, jobject clazz, |
| 63 | jobject istream, jbyteArray byteArray) { |
| 64 | JavaInputStream stream(env, istream, byteArray); |
| 65 | FrameSequence* frameSequence = FrameSequence::create(&stream); |
| 66 | return createJavaFrameSequence(env, frameSequence); |
| 67 | } |
| 68 | |
| 69 | static void nativeDestroyFrameSequence(JNIEnv* env, jobject clazz, |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 70 | jlong frameSequenceLong) { |
| 71 | FrameSequence* frameSequence = reinterpret_cast<FrameSequence*>(frameSequenceLong); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 72 | delete frameSequence; |
| 73 | } |
| 74 | |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 75 | static jlong nativeCreateState(JNIEnv* env, jobject clazz, jlong frameSequenceLong) { |
| 76 | FrameSequence* frameSequence = reinterpret_cast<FrameSequence*>(frameSequenceLong); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 77 | FrameSequenceState* state = frameSequence->createState(); |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 78 | return reinterpret_cast<jlong>(state); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | //////////////////////////////////////////////////////////////////////////////// |
| 82 | // Frame sequence state |
| 83 | //////////////////////////////////////////////////////////////////////////////// |
| 84 | |
| 85 | static void nativeDestroyState( |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 86 | JNIEnv* env, jobject clazz, jlong frameSequenceStateLong) { |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 87 | FrameSequenceState* frameSequenceState = |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 88 | reinterpret_cast<FrameSequenceState*>(frameSequenceStateLong); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 89 | delete frameSequenceState; |
| 90 | } |
| 91 | |
| 92 | static jlong JNICALL nativeGetFrame( |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 93 | JNIEnv* env, jobject clazz, jlong frameSequenceStateLong, jint frameNr, |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 94 | jobject bitmap, jint previousFrameNr) { |
| 95 | FrameSequenceState* frameSequenceState = |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 96 | reinterpret_cast<FrameSequenceState*>(frameSequenceStateLong); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 97 | int ret; |
| 98 | AndroidBitmapInfo info; |
| 99 | void* pixels; |
| 100 | if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0) { |
| 101 | |
| 102 | jniThrowException(env, ILLEGAL_STATE_EXEPTION, |
| 103 | "Couldn't get info from Bitmap "); |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | if ((ret = AndroidBitmap_lockPixels(env, bitmap, &pixels)) < 0) { |
| 108 | jniThrowException(env, ILLEGAL_STATE_EXEPTION, |
| 109 | "Bitmap pixels couldn't be locked"); |
| 110 | return 0; |
| 111 | } |
| 112 | |
| 113 | int pixelStride = info.stride >> 2; |
| 114 | jlong delayMs = frameSequenceState->drawFrame(frameNr, |
| 115 | (Color8888*) pixels, pixelStride, previousFrameNr); |
| 116 | |
| 117 | AndroidBitmap_unlockPixels(env, bitmap); |
| 118 | return delayMs; |
| 119 | } |
| 120 | |
| 121 | static JNINativeMethod gMethods[] = { |
| 122 | { "nativeDecodeByteArray", |
| 123 | "([BII)L" JNI_PACKAGE "/FrameSequence;", |
| 124 | (void*) nativeDecodeByteArray |
| 125 | }, |
| 126 | { "nativeDecodeStream", |
| 127 | "(Ljava/io/InputStream;[B)L" JNI_PACKAGE "/FrameSequence;", |
| 128 | (void*) nativeDecodeStream |
| 129 | }, |
| 130 | { "nativeDestroyFrameSequence", |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 131 | "(J)V", |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 132 | (void*) nativeDestroyFrameSequence |
| 133 | }, |
| 134 | { "nativeCreateState", |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 135 | "(J)J", |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 136 | (void*) nativeCreateState |
| 137 | }, |
| 138 | { "nativeGetFrame", |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 139 | "(JILandroid/graphics/Bitmap;I)J", |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 140 | (void*) nativeGetFrame |
| 141 | }, |
Chris Craik | 2e20149 | 2014-01-14 18:36:50 -0800 | [diff] [blame] | 142 | { "nativeDestroyState", |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 143 | "(J)V", |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 144 | (void*) nativeDestroyState |
| 145 | }, |
| 146 | }; |
| 147 | |
| 148 | jint FrameSequence_OnLoad(JNIEnv* env) { |
| 149 | // Get jclass with env->FindClass. |
| 150 | // Register methods with env->RegisterNatives. |
| 151 | gFrameSequenceClassInfo.clazz = env->FindClass(JNI_PACKAGE "/FrameSequence"); |
| 152 | if (!gFrameSequenceClassInfo.clazz) { |
| 153 | ALOGW("Failed to find " JNI_PACKAGE "/FrameSequence"); |
| 154 | return -1; |
| 155 | } |
| 156 | gFrameSequenceClassInfo.clazz = (jclass)env->NewGlobalRef(gFrameSequenceClassInfo.clazz); |
| 157 | |
Chris Craik | e36c5d6 | 2014-01-13 19:37:04 -0800 | [diff] [blame] | 158 | gFrameSequenceClassInfo.ctor = env->GetMethodID(gFrameSequenceClassInfo.clazz, "<init>", "(JIIZII)V"); |
Chris Craik | a3ac0a2 | 2014-01-06 12:43:42 -0800 | [diff] [blame] | 159 | if (!gFrameSequenceClassInfo.ctor) { |
| 160 | ALOGW("Failed to find constructor for FrameSequence - was it stripped?"); |
| 161 | return -1; |
| 162 | } |
| 163 | |
| 164 | return env->RegisterNatives(gFrameSequenceClassInfo.clazz, gMethods, METHOD_COUNT(gMethods)); |
| 165 | } |