| #include "ScopedLocalRef.h" |
| #include "SkFrontBufferedStream.h" |
| #include "SkMovie.h" |
| #include "SkStream.h" |
| #include "GraphicsJNI.h" |
| #include "SkTemplates.h" |
| #include "SkUtils.h" |
| #include "Utils.h" |
| #include "CreateJavaOutputStreamAdaptor.h" |
| |
| #include <androidfw/Asset.h> |
| #include <androidfw/ResourceTypes.h> |
| #include <netinet/in.h> |
| |
| #if 0 |
| #define TRACE_BITMAP(code) code |
| #else |
| #define TRACE_BITMAP(code) |
| #endif |
| |
| static jclass gMovie_class; |
| static jmethodID gMovie_constructorMethodID; |
| static jfieldID gMovie_nativeInstanceID; |
| |
| jobject create_jmovie(JNIEnv* env, SkMovie* moov) { |
| if (NULL == moov) { |
| return NULL; |
| } |
| return env->NewObject(gMovie_class, gMovie_constructorMethodID, |
| static_cast<jlong>(reinterpret_cast<uintptr_t>(moov))); |
| } |
| |
| static SkMovie* J2Movie(JNIEnv* env, jobject movie) { |
| SkASSERT(env); |
| SkASSERT(movie); |
| SkASSERT(env->IsInstanceOf(movie, gMovie_class)); |
| SkMovie* m = (SkMovie*)env->GetLongField(movie, gMovie_nativeInstanceID); |
| SkASSERT(m); |
| return m; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static jint movie_width(JNIEnv* env, jobject movie) { |
| NPE_CHECK_RETURN_ZERO(env, movie); |
| return static_cast<jint>(J2Movie(env, movie)->width()); |
| } |
| |
| static jint movie_height(JNIEnv* env, jobject movie) { |
| NPE_CHECK_RETURN_ZERO(env, movie); |
| return static_cast<jint>(J2Movie(env, movie)->height()); |
| } |
| |
| static jboolean movie_isOpaque(JNIEnv* env, jobject movie) { |
| NPE_CHECK_RETURN_ZERO(env, movie); |
| return J2Movie(env, movie)->isOpaque() ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static jint movie_duration(JNIEnv* env, jobject movie) { |
| NPE_CHECK_RETURN_ZERO(env, movie); |
| return static_cast<jint>(J2Movie(env, movie)->duration()); |
| } |
| |
| static jboolean movie_setTime(JNIEnv* env, jobject movie, jint ms) { |
| NPE_CHECK_RETURN_ZERO(env, movie); |
| return J2Movie(env, movie)->setTime(ms) ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| static void movie_draw(JNIEnv* env, jobject movie, jobject canvas, |
| jfloat fx, jfloat fy, jobject jpaint) { |
| NPE_CHECK_RETURN_VOID(env, movie); |
| NPE_CHECK_RETURN_VOID(env, canvas); |
| // its OK for paint to be null |
| |
| SkMovie* m = J2Movie(env, movie); |
| SkCanvas* c = GraphicsJNI::getNativeCanvas(env, canvas); |
| SkScalar sx = SkFloatToScalar(fx); |
| SkScalar sy = SkFloatToScalar(fy); |
| const SkBitmap& b = m->bitmap(); |
| const SkPaint* p = jpaint ? GraphicsJNI::getNativePaint(env, jpaint) : NULL; |
| |
| c->drawBitmap(b, sx, sy, p); |
| } |
| |
| static jobject movie_decodeAsset(JNIEnv* env, jobject clazz, jlong native_asset) { |
| android::Asset* asset = reinterpret_cast<android::Asset*>(native_asset); |
| if (asset == NULL) return NULL; |
| SkAutoTUnref<SkStreamRewindable> stream (new android::AssetStreamAdaptor(asset, |
| android::AssetStreamAdaptor::kNo_OwnAsset, |
| android::AssetStreamAdaptor::kNo_HasMemoryBase)); |
| SkMovie* moov = SkMovie::DecodeStream(stream.get()); |
| return create_jmovie(env, moov); |
| } |
| |
| static jobject movie_decodeStream(JNIEnv* env, jobject clazz, jobject istream) { |
| |
| NPE_CHECK_RETURN_ZERO(env, istream); |
| |
| jbyteArray byteArray = env->NewByteArray(16*1024); |
| ScopedLocalRef<jbyteArray> scoper(env, byteArray); |
| SkStream* strm = CreateJavaInputStreamAdaptor(env, istream, byteArray); |
| if (NULL == strm) { |
| return 0; |
| } |
| |
| // Need to buffer enough input to be able to rewind as much as might be read by a decoder |
| // trying to determine the stream's format. The only decoder for movies is GIF, which |
| // will only read 6. |
| // FIXME: Get this number from SkImageDecoder |
| SkAutoTUnref<SkStreamRewindable> bufferedStream(SkFrontBufferedStream::Create(strm, 6)); |
| SkASSERT(bufferedStream.get() != NULL); |
| |
| SkMovie* moov = SkMovie::DecodeStream(bufferedStream); |
| strm->unref(); |
| return create_jmovie(env, moov); |
| } |
| |
| static jobject movie_decodeByteArray(JNIEnv* env, jobject clazz, |
| jbyteArray byteArray, |
| jint offset, jint length) { |
| |
| NPE_CHECK_RETURN_ZERO(env, byteArray); |
| |
| int totalLength = env->GetArrayLength(byteArray); |
| if ((offset | length) < 0 || offset + length > totalLength) { |
| doThrowAIOOBE(env); |
| return 0; |
| } |
| |
| AutoJavaByteArray ar(env, byteArray); |
| SkMovie* moov = SkMovie::DecodeMemory(ar.ptr() + offset, length); |
| return create_jmovie(env, moov); |
| } |
| |
| static void movie_destructor(JNIEnv* env, jobject, jlong movieHandle) { |
| SkMovie* movie = (SkMovie*) movieHandle; |
| delete movie; |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #include <android_runtime/AndroidRuntime.h> |
| |
| static JNINativeMethod gMethods[] = { |
| { "width", "()I", (void*)movie_width }, |
| { "height", "()I", (void*)movie_height }, |
| { "isOpaque", "()Z", (void*)movie_isOpaque }, |
| { "duration", "()I", (void*)movie_duration }, |
| { "setTime", "(I)Z", (void*)movie_setTime }, |
| { "draw", "(Landroid/graphics/Canvas;FFLandroid/graphics/Paint;)V", |
| (void*)movie_draw }, |
| { "nativeDecodeAsset", "(J)Landroid/graphics/Movie;", |
| (void*)movie_decodeAsset }, |
| { "nativeDecodeStream", "(Ljava/io/InputStream;)Landroid/graphics/Movie;", |
| (void*)movie_decodeStream }, |
| { "nativeDestructor","(J)V", (void*)movie_destructor }, |
| { "decodeByteArray", "([BII)Landroid/graphics/Movie;", |
| (void*)movie_decodeByteArray }, |
| }; |
| |
| #define kClassPathName "android/graphics/Movie" |
| |
| #define RETURN_ERR_IF_NULL(value) do { if (!(value)) { assert(0); return -1; } } while (false) |
| |
| int register_android_graphics_Movie(JNIEnv* env) |
| { |
| gMovie_class = env->FindClass(kClassPathName); |
| RETURN_ERR_IF_NULL(gMovie_class); |
| gMovie_class = (jclass)env->NewGlobalRef(gMovie_class); |
| |
| gMovie_constructorMethodID = env->GetMethodID(gMovie_class, "<init>", "(J)V"); |
| RETURN_ERR_IF_NULL(gMovie_constructorMethodID); |
| |
| gMovie_nativeInstanceID = env->GetFieldID(gMovie_class, "mNativeMovie", "J"); |
| RETURN_ERR_IF_NULL(gMovie_nativeInstanceID); |
| |
| return android::AndroidRuntime::registerNativeMethods(env, kClassPathName, |
| gMethods, SK_ARRAY_COUNT(gMethods)); |
| } |