19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "CreateJavaOutputStreamAdaptor.h" 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define RETURN_NULL_IF_NULL(value) \ 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { if (!(value)) { SkASSERT(0); return NULL; } } while (false) 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gInputStream_resetMethodID; 7f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wenstatic jmethodID gInputStream_markMethodID; 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gInputStream_availableMethodID; 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gInputStream_readMethodID; 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gInputStream_skipMethodID; 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectclass JavaInputStreamAdaptor : public SkStream { 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic: 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JavaInputStreamAdaptor(JNIEnv* env, jobject js, jbyteArray ar) 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : fEnv(env), fJavaInputStream(js), fJavaByteArray(ar) { 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkASSERT(ar); 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fCapacity = env->GetArrayLength(ar); 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkASSERT(fCapacity > 0); 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fBytesRead = 0; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project virtual bool rewind() { 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* env = fEnv; 24dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fBytesRead = 0; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->CallVoidMethod(fJavaInputStream, gInputStream_resetMethodID); 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (env->ExceptionCheck()) { 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionDescribe(); 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionClear(); 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkDebugf("------- reset threw an exception\n"); 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t doRead(void* buffer, size_t size) { 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* env = fEnv; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t bytesRead = 0; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // read the bytes 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t requested = size; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (requested > fCapacity) 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requested = fCapacity; 45dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint n = env->CallIntMethod(fJavaInputStream, 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gInputStream_readMethodID, fJavaByteArray, 0, requested); 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (env->ExceptionCheck()) { 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionDescribe(); 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionClear(); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkDebugf("---- read threw an exception\n"); 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 558cd48574a755bea86243e9f9eabaee341ecf9c60Gilles Debunne if (n < 0) { // n == 0 should not be possible, see InputStream read() specifications. 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; // eof 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->GetByteArrayRegion(fJavaByteArray, 0, n, 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reinterpret_cast<jbyte*>(buffer)); 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (env->ExceptionCheck()) { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionDescribe(); 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionClear(); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkDebugf("---- read:GetByteArrayRegion threw an exception\n"); 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer = (void*)((char*)buffer + n); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bytesRead += n; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size -= n; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fBytesRead += n; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } while (size != 0); 73dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bytesRead; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 76dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t doSkip(size_t size) { 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* env = fEnv; 798cd48574a755bea86243e9f9eabaee341ecf9c60Gilles Debunne 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong skipped = env->CallLongMethod(fJavaInputStream, 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gInputStream_skipMethodID, (jlong)size); 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (env->ExceptionCheck()) { 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionDescribe(); 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionClear(); 858cd48574a755bea86243e9f9eabaee341ecf9c60Gilles Debunne SkDebugf("------- skip threw an exception\n"); 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (skipped < 0) { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project skipped = 0; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 918cd48574a755bea86243e9f9eabaee341ecf9c60Gilles Debunne 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (size_t)skipped; 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 94dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t doSize() { 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* env = fEnv; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint avail = env->CallIntMethod(fJavaInputStream, 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gInputStream_availableMethodID); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (env->ExceptionCheck()) { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionDescribe(); 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionClear(); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkDebugf("------- available threw an exception\n"); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project avail = 0; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return avail; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 107dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project virtual size_t read(void* buffer, size_t size) { 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* env = fEnv; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (NULL == buffer) { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 == size) { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return this->doSize(); 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* InputStream.skip(n) can return <=0 but still not be at EOF 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project If we see that value, we need to call read(), which will 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project block if waiting for more data, or return -1 at EOF 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t amountSkipped = 0; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 1208cd48574a755bea86243e9f9eabaee341ecf9c60Gilles Debunne size_t amount = this->doSkip(size - amountSkipped); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 == amount) { 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char tmp; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project amount = this->doRead(&tmp, 1); 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (0 == amount) { 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if read returned 0, we're at EOF 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project amountSkipped += amount; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } while (amountSkipped < size); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return amountSkipped; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return this->doRead(buffer, size); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 136dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectprivate: 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* fEnv; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject fJavaInputStream; // the caller owns this object 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jbyteArray fJavaByteArray; // the caller owns this object 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t fCapacity; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t fBytesRead; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectSkStream* CreateJavaInputStreamAdaptor(JNIEnv* env, jobject stream, 146f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wen jbyteArray storage, int markSize) { 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static bool gInited; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!gInited) { 150dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes jclass inputStream_Clazz = env->FindClass("java/io/InputStream"); 151dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes RETURN_NULL_IF_NULL(inputStream_Clazz); 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 153dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes gInputStream_resetMethodID = env->GetMethodID(inputStream_Clazz, 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "reset", "()V"); 155dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes gInputStream_markMethodID = env->GetMethodID(inputStream_Clazz, 156f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wen "mark", "(I)V"); 157dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes gInputStream_availableMethodID = env->GetMethodID(inputStream_Clazz, 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "available", "()I"); 159dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes gInputStream_readMethodID = env->GetMethodID(inputStream_Clazz, 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "read", "([BII)I"); 161dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes gInputStream_skipMethodID = env->GetMethodID(inputStream_Clazz, 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "skip", "(J)J"); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RETURN_NULL_IF_NULL(gInputStream_resetMethodID); 165f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wen RETURN_NULL_IF_NULL(gInputStream_markMethodID); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RETURN_NULL_IF_NULL(gInputStream_availableMethodID); 1678ac41bb79e96e240e0e774ff2dff2654cb10669cEdward Savage-Jones RETURN_NULL_IF_NULL(gInputStream_readMethodID); 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RETURN_NULL_IF_NULL(gInputStream_skipMethodID); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gInited = true; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 173f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wen if (markSize) { 174f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wen env->CallVoidMethod(stream, gInputStream_markMethodID, markSize); 175f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wen } 176f1f48bc7f200f54c76b22d845d8ba8419879b375Joseph Wen 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new JavaInputStreamAdaptor(env, stream, storage); 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gOutputStream_writeMethodID; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jmethodID gOutputStream_flushMethodID; 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectclass SkJavaOutputStream : public SkWStream { 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic: 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkJavaOutputStream(JNIEnv* env, jobject stream, jbyteArray storage) 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : fEnv(env), fJavaOutputStream(stream), fJavaByteArray(storage) { 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fCapacity = env->GetArrayLength(storage); 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 191dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project virtual bool write(const void* buffer, size_t size) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* env = fEnv; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jbyteArray storage = fJavaByteArray; 195dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (size > 0) { 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t requested = size; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (requested > fCapacity) { 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requested = fCapacity; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetByteArrayRegion(storage, 0, requested, 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reinterpret_cast<const jbyte*>(buffer)); 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (env->ExceptionCheck()) { 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionDescribe(); 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionClear(); 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkDebugf("--- write:SetByteArrayElements threw an exception\n"); 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 210dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fEnv->CallVoidMethod(fJavaOutputStream, gOutputStream_writeMethodID, 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project storage, 0, requested); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (env->ExceptionCheck()) { 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionDescribe(); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ExceptionClear(); 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkDebugf("------- write threw an exception\n"); 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 219dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer = (void*)((char*)buffer + requested); 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size -= requested; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 225dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project virtual void flush() { 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fEnv->CallVoidMethod(fJavaOutputStream, gOutputStream_flushMethodID); 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 229dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectprivate: 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project JNIEnv* fEnv; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject fJavaOutputStream; // the caller owns this object 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jbyteArray fJavaByteArray; // the caller owns this object 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t fCapacity; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectSkWStream* CreateJavaOutputStreamAdaptor(JNIEnv* env, jobject stream, 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jbyteArray storage) { 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static bool gInited; 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!gInited) { 242dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes jclass outputStream_Clazz = env->FindClass("java/io/OutputStream"); 243dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes RETURN_NULL_IF_NULL(outputStream_Clazz); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 245dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes gOutputStream_writeMethodID = env->GetMethodID(outputStream_Clazz, 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "write", "([BII)V"); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RETURN_NULL_IF_NULL(gOutputStream_writeMethodID); 248dd66bcbf9d6ef0c50a18d9c4b1b39ce7ef7afcc4Elliott Hughes gOutputStream_flushMethodID = env->GetMethodID(outputStream_Clazz, 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "flush", "()V"); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RETURN_NULL_IF_NULL(gOutputStream_flushMethodID); 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project gInited = true; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SkJavaOutputStream(env, stream, storage); 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 257