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 } 117 118 ////////////////////////////////////////////////////////////////////////////////////////////// 119 120 #include <android_runtime/AndroidRuntime.h> 121 122 static JNINativeMethod gMethods[] = { 123 { "width", "()I", (void*)movie_width }, 124 { "height", "()I", (void*)movie_height }, 125 { "isOpaque", "()Z", (void*)movie_isOpaque }, 126 { "duration", "()I", (void*)movie_duration }, 127 { "setTime", "(I)Z", (void*)movie_setTime }, 128 { "draw", "(Landroid/graphics/Canvas;FFLandroid/graphics/Paint;)V", 129 (void*)movie_draw }, 130 { "decodeStream", "(Ljava/io/InputStream;)Landroid/graphics/Movie;", 131 (void*)movie_decodeStream }, 132 { "decodeByteArray", "([BII)Landroid/graphics/Movie;", 133 (void*)movie_decodeByteArray }, 134 }; 135 136 #define kClassPathName "android/graphics/Movie" 137 138 #define RETURN_ERR_IF_NULL(value) do { if (!(value)) { assert(0); return -1; } } while (false) 139 140 int register_android_graphics_Movie(JNIEnv* env); 141 int register_android_graphics_Movie(JNIEnv* env) 142 { 143 gMovie_class = env->FindClass(kClassPathName); 144 RETURN_ERR_IF_NULL(gMovie_class); 145 gMovie_class = (jclass)env->NewGlobalRef(gMovie_class); 146 147 gMovie_constructorMethodID = env->GetMethodID(gMovie_class, "<init>", "(I)V"); 148 RETURN_ERR_IF_NULL(gMovie_constructorMethodID); 149 150 gMovie_nativeInstanceID = env->GetFieldID(gMovie_class, "mNativeMovie", "I"); 151 RETURN_ERR_IF_NULL(gMovie_nativeInstanceID); 152 153 return android::AndroidRuntime::registerNativeMethods(env, kClassPathName, 154 gMethods, SK_ARRAY_COUNT(gMethods)); 155 } 156