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Diffstat (limited to 'core/jni/android/graphics/BitmapRegionDecoder.cpp')
| -rw-r--r-- | core/jni/android/graphics/BitmapRegionDecoder.cpp | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/core/jni/android/graphics/BitmapRegionDecoder.cpp b/core/jni/android/graphics/BitmapRegionDecoder.cpp deleted file mode 100644 index 4503852..0000000 --- a/core/jni/android/graphics/BitmapRegionDecoder.cpp +++ /dev/null @@ -1,305 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#define LOG_TAG "BitmapRegionDecoder" - -#include "SkBitmap.h" -#include "SkImageEncoder.h" -#include "GraphicsJNI.h" -#include "SkUtils.h" -#include "SkTemplates.h" -#include "SkPixelRef.h" -#include "SkStream.h" -#include "BitmapFactory.h" -#include "AutoDecodeCancel.h" -#include "SkBitmapRegionDecoder.h" -#include "CreateJavaOutputStreamAdaptor.h" -#include "Utils.h" - -#include <android_runtime/AndroidRuntime.h> -#include "android_util_Binder.h" -#include "android_nio_utils.h" -#include "CreateJavaOutputStreamAdaptor.h" - -#include <binder/Parcel.h> -#include <jni.h> -#include <utils/Asset.h> -#include <sys/stat.h> - -static jclass gFileDescriptor_class; -static jfieldID gFileDescriptor_descriptor; - -#if 0 - #define TRACE_BITMAP(code) code -#else - #define TRACE_BITMAP(code) -#endif - -using namespace android; - -static SkMemoryStream* buildSkMemoryStream(SkStream *stream) { - size_t bufferSize = 4096; - size_t streamLen = 0; - size_t len; - char* data = (char*)sk_malloc_throw(bufferSize); - - while ((len = stream->read(data + streamLen, - bufferSize - streamLen)) != 0) { - streamLen += len; - if (streamLen == bufferSize) { - bufferSize *= 2; - data = (char*)sk_realloc_throw(data, bufferSize); - } - } - data = (char*)sk_realloc_throw(data, streamLen); - SkMemoryStream* streamMem = new SkMemoryStream(); - streamMem->setMemoryOwned(data, streamLen); - return streamMem; -} - -static jobject doBuildTileIndex(JNIEnv* env, SkStream* stream) { - SkImageDecoder* decoder = SkImageDecoder::Factory(stream); - int width, height; - if (NULL == decoder) { - doThrowIOE(env, "Image format not supported"); - return nullObjectReturn("SkImageDecoder::Factory returned null"); - } - - JavaPixelAllocator *javaAllocator = new JavaPixelAllocator(env, true); - decoder->setAllocator(javaAllocator); - JavaMemoryUsageReporter *javaMemoryReporter = new JavaMemoryUsageReporter(env); - decoder->setReporter(javaMemoryReporter); - javaAllocator->unref(); - javaMemoryReporter->unref(); - - if (!decoder->buildTileIndex(stream, &width, &height)) { - char msg[100]; - snprintf(msg, sizeof(msg), "Image failed to decode using %s decoder", - decoder->getFormatName()); - doThrowIOE(env, msg); - return nullObjectReturn("decoder->buildTileIndex returned false"); - } - - SkBitmapRegionDecoder *bm = new SkBitmapRegionDecoder(decoder, width, height); - - return GraphicsJNI::createBitmapRegionDecoder(env, bm); -} - -static jobject nativeNewInstanceFromByteArray(JNIEnv* env, jobject, jbyteArray byteArray, - int offset, int length, jboolean isShareable) { - /* If isShareable we could decide to just wrap the java array and - share it, but that means adding a globalref to the java array object - For now we just always copy the array's data if isShareable. - */ - AutoJavaByteArray ar(env, byteArray); - SkStream* stream = new SkMemoryStream(ar.ptr() + offset, length, true); - return doBuildTileIndex(env, stream); -} - -static jobject nativeNewInstanceFromFileDescriptor(JNIEnv* env, jobject clazz, - jobject fileDescriptor, jboolean isShareable) { - NPE_CHECK_RETURN_ZERO(env, fileDescriptor); - - jint descriptor = env->GetIntField(fileDescriptor, - gFileDescriptor_descriptor); - SkStream *stream = NULL; - struct stat fdStat; - int newFD; - if (fstat(descriptor, &fdStat) == -1) { - doThrowIOE(env, "broken file descriptor"); - return nullObjectReturn("fstat return -1"); - } - - if (isShareable && - S_ISREG(fdStat.st_mode) && - (newFD = ::dup(descriptor)) != -1) { - SkFDStream* fdStream = new SkFDStream(newFD, true); - if (!fdStream->isValid()) { - fdStream->unref(); - return NULL; - } - stream = fdStream; - } else { - SkFDStream* fdStream = new SkFDStream(descriptor, false); - if (!fdStream->isValid()) { - fdStream->unref(); - return NULL; - } - stream = buildSkMemoryStream(fdStream); - fdStream->unref(); - } - - /* Restore our offset when we leave, so we can be called more than once - with the same descriptor. This is only required if we didn't dup the - file descriptor, but it is OK to do it all the time. - */ - AutoFDSeek as(descriptor); - - return doBuildTileIndex(env, stream); -} - -static jobject nativeNewInstanceFromStream(JNIEnv* env, jobject clazz, - jobject is, // InputStream - jbyteArray storage, // byte[] - jboolean isShareable) { - jobject largeBitmap = NULL; - SkStream* stream = CreateJavaInputStreamAdaptor(env, is, storage, 1024); - - if (stream) { - // for now we don't allow shareable with java inputstreams - SkMemoryStream *mStream = buildSkMemoryStream(stream); - largeBitmap = doBuildTileIndex(env, mStream); - stream->unref(); - } - return largeBitmap; -} - -static jobject nativeNewInstanceFromAsset(JNIEnv* env, jobject clazz, - jint native_asset, // Asset - jboolean isShareable) { - SkStream* stream, *assStream; - Asset* asset = reinterpret_cast<Asset*>(native_asset); - assStream = new AssetStreamAdaptor(asset); - stream = buildSkMemoryStream(assStream); - assStream->unref(); - return doBuildTileIndex(env, stream); -} - -/* - * nine patch not supported - * - * purgeable not supported - * reportSizeToVM not supported - */ -static jobject nativeDecodeRegion(JNIEnv* env, jobject, SkBitmapRegionDecoder *brd, - int start_x, int start_y, int width, int height, jobject options) { - SkImageDecoder *decoder = brd->getDecoder(); - int sampleSize = 1; - SkBitmap::Config prefConfig = SkBitmap::kNo_Config; - bool doDither = true; - - if (NULL != options) { - sampleSize = env->GetIntField(options, gOptions_sampleSizeFieldID); - // initialize these, in case we fail later on - env->SetIntField(options, gOptions_widthFieldID, -1); - env->SetIntField(options, gOptions_heightFieldID, -1); - env->SetObjectField(options, gOptions_mimeFieldID, 0); - - jobject jconfig = env->GetObjectField(options, gOptions_configFieldID); - prefConfig = GraphicsJNI::getNativeBitmapConfig(env, jconfig); - doDither = env->GetBooleanField(options, gOptions_ditherFieldID); - } - - decoder->setDitherImage(doDither); - SkBitmap* bitmap = new SkBitmap; - SkAutoTDelete<SkBitmap> adb(bitmap); - AutoDecoderCancel adc(options, decoder); - - // To fix the race condition in case "requestCancelDecode" - // happens earlier than AutoDecoderCancel object is added - // to the gAutoDecoderCancelMutex linked list. - if (NULL != options && env->GetBooleanField(options, gOptions_mCancelID)) { - return nullObjectReturn("gOptions_mCancelID");; - } - - SkIRect region; - region.fLeft = start_x; - region.fTop = start_y; - region.fRight = start_x + width; - region.fBottom = start_y + height; - - if (!brd->decodeRegion(bitmap, region, prefConfig, sampleSize)) { - return nullObjectReturn("decoder->decodeRegion returned false"); - } - - // update options (if any) - if (NULL != options) { - env->SetIntField(options, gOptions_widthFieldID, bitmap->width()); - env->SetIntField(options, gOptions_heightFieldID, bitmap->height()); - // TODO: set the mimeType field with the data from the codec. - // but how to reuse a set of strings, rather than allocating new one - // each time? - env->SetObjectField(options, gOptions_mimeFieldID, - getMimeTypeString(env, decoder->getFormat())); - } - - // detach bitmap from its autotdeleter, since we want to own it now - adb.detach(); - - SkPixelRef* pr; - pr = bitmap->pixelRef(); - // promise we will never change our pixels (great for sharing and pictures) - pr->setImmutable(); - // now create the java bitmap - return GraphicsJNI::createBitmap(env, bitmap, false, NULL); -} - -static int nativeGetHeight(JNIEnv* env, jobject, SkBitmapRegionDecoder *brd) { - return brd->getHeight(); -} - -static int nativeGetWidth(JNIEnv* env, jobject, SkBitmapRegionDecoder *brd) { - return brd->getWidth(); -} - -static void nativeClean(JNIEnv* env, jobject, SkBitmapRegionDecoder *brd) { - delete brd; -} - -/////////////////////////////////////////////////////////////////////////////// - -#include <android_runtime/AndroidRuntime.h> - -static JNINativeMethod gBitmapRegionDecoderMethods[] = { - { "nativeDecodeRegion", - "(IIIIILandroid/graphics/BitmapFactory$Options;)Landroid/graphics/Bitmap;", - (void*)nativeDecodeRegion}, - - { "nativeGetHeight", "(I)I", (void*)nativeGetHeight}, - - { "nativeGetWidth", "(I)I", (void*)nativeGetWidth}, - - { "nativeClean", "(I)V", (void*)nativeClean}, - - { "nativeNewInstance", - "([BIIZ)Landroid/graphics/BitmapRegionDecoder;", - (void*)nativeNewInstanceFromByteArray - }, - - { "nativeNewInstance", - "(Ljava/io/InputStream;[BZ)Landroid/graphics/BitmapRegionDecoder;", - (void*)nativeNewInstanceFromStream - }, - - { "nativeNewInstance", - "(Ljava/io/FileDescriptor;Z)Landroid/graphics/BitmapRegionDecoder;", - (void*)nativeNewInstanceFromFileDescriptor - }, - - { "nativeNewInstance", - "(IZ)Landroid/graphics/BitmapRegionDecoder;", - (void*)nativeNewInstanceFromAsset - }, -}; - -#define kClassPathName "android/graphics/BitmapRegionDecoder" - -int register_android_graphics_BitmapRegionDecoder(JNIEnv* env); -int register_android_graphics_BitmapRegionDecoder(JNIEnv* env) -{ - return android::AndroidRuntime::registerNativeMethods(env, kClassPathName, - gBitmapRegionDecoderMethods, SK_ARRAY_COUNT(gBitmapRegionDecoderMethods)); -} |