The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | #include "SkMovie.h" |
| 2 | #include "SkStream.h" |
| 3 | #include "GraphicsJNI.h" |
| 4 | #include "SkTemplates.h" |
| 5 | #include "SkUtils.h" |
| 6 | #include "CreateJavaOutputStreamAdaptor.h" |
| 7 | |
| 8 | #include <utils/Asset.h> |
| 9 | #include <utils/ResourceTypes.h> |
| 10 | #include <netinet/in.h> |
| 11 | |
| 12 | #if 0 |
| 13 | #define TRACE_BITMAP(code) code |
| 14 | #else |
| 15 | #define TRACE_BITMAP(code) |
| 16 | #endif |
| 17 | |
| 18 | static jclass gMovie_class; |
| 19 | static jmethodID gMovie_constructorMethodID; |
| 20 | static jfieldID gMovie_nativeInstanceID; |
| 21 | |
| 22 | jobject create_jmovie(JNIEnv* env, SkMovie* moov) { |
| 23 | if (NULL == moov) { |
| 24 | return NULL; |
| 25 | } |
| 26 | jobject obj = env->AllocObject(gMovie_class); |
| 27 | if (obj) { |
| 28 | env->CallVoidMethod(obj, gMovie_constructorMethodID, (jint)moov); |
| 29 | } |
| 30 | return obj; |
| 31 | } |
| 32 | |
| 33 | static SkMovie* J2Movie(JNIEnv* env, jobject movie) { |
| 34 | SkASSERT(env); |
| 35 | SkASSERT(movie); |
| 36 | SkASSERT(env->IsInstanceOf(movie, gMovie_class)); |
| 37 | SkMovie* m = (SkMovie*)env->GetIntField(movie, gMovie_nativeInstanceID); |
| 38 | SkASSERT(m); |
| 39 | return m; |
| 40 | } |
| 41 | |
| 42 | /////////////////////////////////////////////////////////////////////////////// |
| 43 | |
| 44 | static int movie_width(JNIEnv* env, jobject movie) { |
| 45 | NPE_CHECK_RETURN_ZERO(env, movie); |
| 46 | return J2Movie(env, movie)->width(); |
| 47 | } |
| 48 | |
| 49 | static int movie_height(JNIEnv* env, jobject movie) { |
| 50 | NPE_CHECK_RETURN_ZERO(env, movie); |
| 51 | return J2Movie(env, movie)->height(); |
| 52 | } |
| 53 | |
| 54 | static jboolean movie_isOpaque(JNIEnv* env, jobject movie) { |
| 55 | NPE_CHECK_RETURN_ZERO(env, movie); |
| 56 | return J2Movie(env, movie)->isOpaque(); |
| 57 | } |
| 58 | |
| 59 | static int movie_duration(JNIEnv* env, jobject movie) { |
| 60 | NPE_CHECK_RETURN_ZERO(env, movie); |
| 61 | return J2Movie(env, movie)->duration(); |
| 62 | } |
| 63 | |
| 64 | static jboolean movie_setTime(JNIEnv* env, jobject movie, int ms) { |
| 65 | NPE_CHECK_RETURN_ZERO(env, movie); |
| 66 | return J2Movie(env, movie)->setTime(ms); |
| 67 | } |
| 68 | |
| 69 | static void movie_draw(JNIEnv* env, jobject movie, jobject canvas, |
| 70 | jfloat fx, jfloat fy, jobject jpaint) { |
| 71 | NPE_CHECK_RETURN_VOID(env, movie); |
| 72 | NPE_CHECK_RETURN_VOID(env, canvas); |
| 73 | // its OK for paint to be null |
| 74 | |
| 75 | SkMovie* m = J2Movie(env, movie); |
| 76 | SkCanvas* c = GraphicsJNI::getNativeCanvas(env, canvas); |
| 77 | SkScalar sx = SkFloatToScalar(fx); |
| 78 | SkScalar sy = SkFloatToScalar(fy); |
| 79 | const SkBitmap& b = m->bitmap(); |
| 80 | const SkPaint* p = jpaint ? GraphicsJNI::getNativePaint(env, jpaint) : NULL; |
| 81 | |
| 82 | c->drawBitmap(b, sx, sy, p); |
| 83 | } |
| 84 | |
| 85 | static jobject movie_decodeStream(JNIEnv* env, jobject clazz, jobject istream) { |
| 86 | |
| 87 | NPE_CHECK_RETURN_ZERO(env, istream); |
| 88 | |
| 89 | // what is the lifetime of the array? Can the skstream hold onto it? |
| 90 | jbyteArray byteArray = env->NewByteArray(16*1024); |
| 91 | SkStream* strm = CreateJavaInputStreamAdaptor(env, istream, byteArray); |
| 92 | if (NULL == strm) { |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | SkMovie* moov = SkMovie::DecodeStream(strm); |
| 97 | strm->unref(); |
| 98 | return create_jmovie(env, moov); |
| 99 | } |
| 100 | |
| 101 | static jobject movie_decodeByteArray(JNIEnv* env, jobject clazz, |
| 102 | jbyteArray byteArray, |
| 103 | int offset, int length) { |
| 104 | |
| 105 | NPE_CHECK_RETURN_ZERO(env, byteArray); |
| 106 | |
| 107 | int totalLength = env->GetArrayLength(byteArray); |
| 108 | if ((offset | length) < 0 || offset + length > totalLength) { |
| 109 | doThrow(env, "java/lang/ArrayIndexOutOfBoundsException"); |
| 110 | return 0; |
| 111 | } |
| 112 | |
| 113 | AutoJavaByteArray ar(env, byteArray); |
| 114 | SkMovie* moov = SkMovie::DecodeMemory(ar.ptr() + offset, length); |
| 115 | return create_jmovie(env, moov); |
| 116 | } |
| 117 | |
Kimiyoshi Kusaka | 08d7778 | 2011-03-28 11:58:51 +0900 | [diff] [blame] | 118 | static void movie_destructor(JNIEnv* env, jobject, SkMovie* movie) { |
| 119 | delete movie; |
| 120 | } |
| 121 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 122 | ////////////////////////////////////////////////////////////////////////////////////////////// |
| 123 | |
| 124 | #include <android_runtime/AndroidRuntime.h> |
| 125 | |
| 126 | static JNINativeMethod gMethods[] = { |
| 127 | { "width", "()I", (void*)movie_width }, |
| 128 | { "height", "()I", (void*)movie_height }, |
| 129 | { "isOpaque", "()Z", (void*)movie_isOpaque }, |
| 130 | { "duration", "()I", (void*)movie_duration }, |
| 131 | { "setTime", "(I)Z", (void*)movie_setTime }, |
| 132 | { "draw", "(Landroid/graphics/Canvas;FFLandroid/graphics/Paint;)V", |
| 133 | (void*)movie_draw }, |
| 134 | { "decodeStream", "(Ljava/io/InputStream;)Landroid/graphics/Movie;", |
| 135 | (void*)movie_decodeStream }, |
Kimiyoshi Kusaka | 08d7778 | 2011-03-28 11:58:51 +0900 | [diff] [blame] | 136 | { "nativeDestructor","(I)V", (void*)movie_destructor }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 137 | { "decodeByteArray", "([BII)Landroid/graphics/Movie;", |
| 138 | (void*)movie_decodeByteArray }, |
| 139 | }; |
| 140 | |
| 141 | #define kClassPathName "android/graphics/Movie" |
| 142 | |
| 143 | #define RETURN_ERR_IF_NULL(value) do { if (!(value)) { assert(0); return -1; } } while (false) |
| 144 | |
| 145 | int register_android_graphics_Movie(JNIEnv* env); |
| 146 | int register_android_graphics_Movie(JNIEnv* env) |
| 147 | { |
| 148 | gMovie_class = env->FindClass(kClassPathName); |
| 149 | RETURN_ERR_IF_NULL(gMovie_class); |
| 150 | gMovie_class = (jclass)env->NewGlobalRef(gMovie_class); |
| 151 | |
| 152 | gMovie_constructorMethodID = env->GetMethodID(gMovie_class, "<init>", "(I)V"); |
| 153 | RETURN_ERR_IF_NULL(gMovie_constructorMethodID); |
| 154 | |
| 155 | gMovie_nativeInstanceID = env->GetFieldID(gMovie_class, "mNativeMovie", "I"); |
| 156 | RETURN_ERR_IF_NULL(gMovie_nativeInstanceID); |
| 157 | |
| 158 | return android::AndroidRuntime::registerNativeMethods(env, kClassPathName, |
| 159 | gMethods, SK_ARRAY_COUNT(gMethods)); |
| 160 | } |