libs/hwui/apex/android_bitmap.cpp - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2019 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 "Bitmap"
 #include <log/log.h>

 #include "android/graphics/bitmap.h"
 #include "TypeCast.h"
 #include "GraphicsJNI.h"

 #include <GraphicsJNI.h>
 #include <hwui/Bitmap.h>
 #include <utils/Color.h>

 using namespace android;

 ABitmap* ABitmap_acquireBitmapFromJava(JNIEnv* env, jobject bitmapObj) {
     Bitmap* bitmap = GraphicsJNI::getNativeBitmap(env, bitmapObj);
     if (bitmap) {
         bitmap->ref();
         return TypeCast::toABitmap(bitmap);
     }
     return nullptr;
 }

 void ABitmap_acquireRef(ABitmap* bitmap) {
     SkSafeRef(TypeCast::toBitmap(bitmap));
 }

 void ABitmap_releaseRef(ABitmap* bitmap) {
     SkSafeUnref(TypeCast::toBitmap(bitmap));
 }

 static AndroidBitmapFormat getFormat(const SkImageInfo& info) {
     switch (info.colorType()) {
         case kN32_SkColorType:
             return ANDROID_BITMAP_FORMAT_RGBA_8888;
         case kRGB_565_SkColorType:
             return ANDROID_BITMAP_FORMAT_RGB_565;
         case kARGB_4444_SkColorType:
             return ANDROID_BITMAP_FORMAT_RGBA_4444;
         case kAlpha_8_SkColorType:
             return ANDROID_BITMAP_FORMAT_A_8;
         case kRGBA_F16_SkColorType:
             return ANDROID_BITMAP_FORMAT_RGBA_F16;
         default:
             return ANDROID_BITMAP_FORMAT_NONE;
     }
 }

 static SkColorType getColorType(AndroidBitmapFormat format) {
     switch (format) {
         case ANDROID_BITMAP_FORMAT_RGBA_8888:
             return kN32_SkColorType;
         case ANDROID_BITMAP_FORMAT_RGB_565:
             return kRGB_565_SkColorType;
         case ANDROID_BITMAP_FORMAT_RGBA_4444:
             return kARGB_4444_SkColorType;
         case ANDROID_BITMAP_FORMAT_A_8:
             return kAlpha_8_SkColorType;
         case ANDROID_BITMAP_FORMAT_RGBA_F16:
             return kRGBA_F16_SkColorType;
         default:
             return kUnknown_SkColorType;
     }
 }

 static uint32_t getAlphaFlags(const SkImageInfo& info) {
     switch (info.alphaType()) {
         case kUnknown_SkAlphaType:
             LOG_ALWAYS_FATAL("Bitmap has no alpha type");
             break;
         case kOpaque_SkAlphaType:
             return ANDROID_BITMAP_FLAGS_ALPHA_OPAQUE;
         case kPremul_SkAlphaType:
             return ANDROID_BITMAP_FLAGS_ALPHA_PREMUL;
         case kUnpremul_SkAlphaType:
             return ANDROID_BITMAP_FLAGS_ALPHA_UNPREMUL;
     }
 }

 static uint32_t getInfoFlags(const SkImageInfo& info, bool isHardware) {
     uint32_t flags = getAlphaFlags(info);
     if (isHardware) {
         flags |= ANDROID_BITMAP_FLAGS_IS_HARDWARE;
     }
     return flags;
 }

 ABitmap* ABitmap_copy(ABitmap* srcBitmapHandle, AndroidBitmapFormat dstFormat) {
     SkColorType dstColorType = getColorType(dstFormat);
     if (srcBitmapHandle && dstColorType != kUnknown_SkColorType) {
         SkBitmap srcBitmap;
         TypeCast::toBitmap(srcBitmapHandle)->getSkBitmap(&srcBitmap);

         sk_sp<Bitmap> dstBitmap =
                 Bitmap::allocateHeapBitmap(srcBitmap.info().makeColorType(dstColorType));
         if (dstBitmap && srcBitmap.readPixels(dstBitmap->info(), dstBitmap->pixels(),
                                               dstBitmap->rowBytes(), 0, 0)) {
             return TypeCast::toABitmap(dstBitmap.release());
         }
     }
     return nullptr;
 }

 static AndroidBitmapInfo getInfo(const SkImageInfo& imageInfo, uint32_t rowBytes, bool isHardware) {
     AndroidBitmapInfo info;
     info.width = imageInfo.width();
     info.height = imageInfo.height();
     info.stride = rowBytes;
     info.format = getFormat(imageInfo);
     info.flags = getInfoFlags(imageInfo, isHardware);
     return info;
 }

 AndroidBitmapInfo ABitmap_getInfo(ABitmap* bitmapHandle) {
     Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
     return getInfo(bitmap->info(), bitmap->rowBytes(), bitmap->isHardware());
 }

 ADataSpace ABitmap_getDataSpace(ABitmap* bitmapHandle) {
     Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
     const SkImageInfo& info = bitmap->info();
     return (ADataSpace)uirenderer::ColorSpaceToADataSpace(info.colorSpace(), info.colorType());
 }

 AndroidBitmapInfo ABitmap_getInfoFromJava(JNIEnv* env, jobject bitmapObj) {
     uint32_t rowBytes = 0;
     bool isHardware = false;
     SkImageInfo imageInfo = GraphicsJNI::getBitmapInfo(env, bitmapObj, &rowBytes, &isHardware);
     return getInfo(imageInfo, rowBytes, isHardware);
 }

 void* ABitmap_getPixels(ABitmap* bitmapHandle) {
     Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
     if (bitmap->isHardware()) {
         return nullptr;
     }
     return bitmap->pixels();
 }

 AndroidBitmapFormat ABitmapConfig_getFormatFromConfig(JNIEnv* env, jobject bitmapConfigObj) {
     return GraphicsJNI::getFormatFromConfig(env, bitmapConfigObj);
 }

 jobject ABitmapConfig_getConfigFromFormat(JNIEnv* env, AndroidBitmapFormat format) {
     return GraphicsJNI::getConfigFromFormat(env, format);
 }

 void ABitmap_notifyPixelsChanged(ABitmap* bitmapHandle) {
     Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
     if (bitmap->isImmutable()) {
         ALOGE("Attempting to modify an immutable Bitmap!");
     }
     return bitmap->notifyPixelsChanged();
 }

 namespace {
 SkAlphaType getAlphaType(const AndroidBitmapInfo* info) {
     switch (info->flags & ANDROID_BITMAP_FLAGS_ALPHA_MASK) {
         case ANDROID_BITMAP_FLAGS_ALPHA_OPAQUE:
             return kOpaque_SkAlphaType;
         case ANDROID_BITMAP_FLAGS_ALPHA_PREMUL:
             return kPremul_SkAlphaType;
         case ANDROID_BITMAP_FLAGS_ALPHA_UNPREMUL:
             return kUnpremul_SkAlphaType;
         default:
             return kUnknown_SkAlphaType;
     }
 }

 class CompressWriter : public SkWStream {
 public:
     CompressWriter(void* userContext, AndroidBitmap_CompressWriteFunc fn)
           : mUserContext(userContext), mFn(fn), mBytesWritten(0) {}

     bool write(const void* buffer, size_t size) override {
         if (mFn(mUserContext, buffer, size)) {
             mBytesWritten += size;
             return true;
         }
         return false;
     }

     size_t bytesWritten() const override { return mBytesWritten; }

 private:
     void* mUserContext;
     AndroidBitmap_CompressWriteFunc mFn;
     size_t mBytesWritten;
 };

 } // anonymous namespace

 int ABitmap_compress(const AndroidBitmapInfo* info, ADataSpace dataSpace, const void* pixels,
                      AndroidBitmapCompressFormat inFormat, int32_t quality, void* userContext,
                      AndroidBitmap_CompressWriteFunc fn) {
     Bitmap::JavaCompressFormat format;
     switch (inFormat) {
         case ANDROID_BITMAP_COMPRESS_FORMAT_JPEG:
             format = Bitmap::JavaCompressFormat::Jpeg;
             break;
         case ANDROID_BITMAP_COMPRESS_FORMAT_PNG:
             format = Bitmap::JavaCompressFormat::Png;
             break;
         case ANDROID_BITMAP_COMPRESS_FORMAT_WEBP_LOSSY:
             format = Bitmap::JavaCompressFormat::WebpLossy;
             break;
         case ANDROID_BITMAP_COMPRESS_FORMAT_WEBP_LOSSLESS:
             format = Bitmap::JavaCompressFormat::WebpLossless;
             break;
         default:
             // kWEBP_JavaEncodeFormat is a valid parameter for Bitmap::compress,
             // for the deprecated Bitmap.CompressFormat.WEBP, but it should not
             // be provided via the NDK. Other integers are likewise invalid.
             return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
     }

     SkColorType colorType;
     switch (info->format) {
         case ANDROID_BITMAP_FORMAT_RGBA_8888:
             colorType = kN32_SkColorType;
             break;
         case ANDROID_BITMAP_FORMAT_RGB_565:
             colorType = kRGB_565_SkColorType;
             break;
         case ANDROID_BITMAP_FORMAT_A_8:
             // FIXME b/146637821: Should this encode as grayscale? We should
             // make the same decision as for encoding an android.graphics.Bitmap.
             // Note that encoding kAlpha_8 as WebP or JPEG will fail. Encoding
             // it to PNG encodes as GRAY+ALPHA with a secret handshake that we
             // only care about the alpha. I'm not sure whether Android decoding
             // APIs respect that handshake.
             colorType = kAlpha_8_SkColorType;
             break;
         case ANDROID_BITMAP_FORMAT_RGBA_F16:
             colorType = kRGBA_F16_SkColorType;
             break;
         default:
             return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
     }

     auto alphaType = getAlphaType(info);
     if (alphaType == kUnknown_SkAlphaType) {
         return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
     }

     sk_sp<SkColorSpace> cs;
     if (info->format == ANDROID_BITMAP_FORMAT_A_8) {
         // FIXME: A Java Bitmap with ALPHA_8 never has a ColorSpace. So should
         // we force that here (as I'm doing now) or should we treat anything
         // besides ADATASPACE_UNKNOWN as an error?
         cs = nullptr;
     } else {
         cs = uirenderer::DataSpaceToColorSpace((android_dataspace) dataSpace);
         // DataSpaceToColorSpace treats UNKNOWN as SRGB, but compress forces the
         // client to specify SRGB if that is what they want.
         if (!cs || dataSpace == ADATASPACE_UNKNOWN) {
             return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
         }
     }

     {
         size_t size;
         if (!Bitmap::computeAllocationSize(info->stride, info->height, &size)) {
             return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
         }
     }

     auto imageInfo =
             SkImageInfo::Make(info->width, info->height, colorType, alphaType, std::move(cs));
     SkBitmap bitmap;
     // We are not going to modify the pixels, but installPixels expects them to
     // not be const, since for all it knows we might want to draw to the SkBitmap.
     if (!bitmap.installPixels(imageInfo, const_cast<void*>(pixels), info->stride)) {
         return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
     }

     CompressWriter stream(userContext, fn);
     return Bitmap::compress(bitmap, format, quality, &stream) ? ANDROID_BITMAP_RESULT_SUCCESS
                                                               : ANDROID_BITMAP_RESULT_JNI_EXCEPTION;
 }

 AHardwareBuffer* ABitmap_getHardwareBuffer(ABitmap* bitmapHandle) {
     Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
     AHardwareBuffer* buffer = bitmap->hardwareBuffer();
     if (buffer) {
         AHardwareBuffer_acquire(buffer);
     }
     return buffer;
 }
	/*
	* Copyright (C) 2019 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 "Bitmap"
	#include <log/log.h>

	#include "android/graphics/bitmap.h"
	#include "TypeCast.h"
	#include "GraphicsJNI.h"

	#include <GraphicsJNI.h>
	#include <hwui/Bitmap.h>
	#include <utils/Color.h>

	using namespace android;

	ABitmap* ABitmap_acquireBitmapFromJava(JNIEnv* env, jobject bitmapObj) {
	Bitmap* bitmap = GraphicsJNI::getNativeBitmap(env, bitmapObj);
	if (bitmap) {
	bitmap->ref();
	return TypeCast::toABitmap(bitmap);
	}
	return nullptr;
	}

	void ABitmap_acquireRef(ABitmap* bitmap) {
	SkSafeRef(TypeCast::toBitmap(bitmap));
	}

	void ABitmap_releaseRef(ABitmap* bitmap) {
	SkSafeUnref(TypeCast::toBitmap(bitmap));
	}

	static AndroidBitmapFormat getFormat(const SkImageInfo& info) {
	switch (info.colorType()) {
	case kN32_SkColorType:
	return ANDROID_BITMAP_FORMAT_RGBA_8888;
	case kRGB_565_SkColorType:
	return ANDROID_BITMAP_FORMAT_RGB_565;
	case kARGB_4444_SkColorType:
	return ANDROID_BITMAP_FORMAT_RGBA_4444;
	case kAlpha_8_SkColorType:
	return ANDROID_BITMAP_FORMAT_A_8;
	case kRGBA_F16_SkColorType:
	return ANDROID_BITMAP_FORMAT_RGBA_F16;
	default:
	return ANDROID_BITMAP_FORMAT_NONE;
	}
	}

	static SkColorType getColorType(AndroidBitmapFormat format) {
	switch (format) {
	case ANDROID_BITMAP_FORMAT_RGBA_8888:
	return kN32_SkColorType;
	case ANDROID_BITMAP_FORMAT_RGB_565:
	return kRGB_565_SkColorType;
	case ANDROID_BITMAP_FORMAT_RGBA_4444:
	return kARGB_4444_SkColorType;
	case ANDROID_BITMAP_FORMAT_A_8:
	return kAlpha_8_SkColorType;
	case ANDROID_BITMAP_FORMAT_RGBA_F16:
	return kRGBA_F16_SkColorType;
	default:
	return kUnknown_SkColorType;
	}
	}

	static uint32_t getAlphaFlags(const SkImageInfo& info) {
	switch (info.alphaType()) {
	case kUnknown_SkAlphaType:
	LOG_ALWAYS_FATAL("Bitmap has no alpha type");
	break;
	case kOpaque_SkAlphaType:
	return ANDROID_BITMAP_FLAGS_ALPHA_OPAQUE;
	case kPremul_SkAlphaType:
	return ANDROID_BITMAP_FLAGS_ALPHA_PREMUL;
	case kUnpremul_SkAlphaType:
	return ANDROID_BITMAP_FLAGS_ALPHA_UNPREMUL;
	}
	}

	static uint32_t getInfoFlags(const SkImageInfo& info, bool isHardware) {
	uint32_t flags = getAlphaFlags(info);
	if (isHardware) {
	flags \|= ANDROID_BITMAP_FLAGS_IS_HARDWARE;
	}
	return flags;
	}

	ABitmap* ABitmap_copy(ABitmap* srcBitmapHandle, AndroidBitmapFormat dstFormat) {
	SkColorType dstColorType = getColorType(dstFormat);
	if (srcBitmapHandle && dstColorType != kUnknown_SkColorType) {
	SkBitmap srcBitmap;
	TypeCast::toBitmap(srcBitmapHandle)->getSkBitmap(&srcBitmap);

	sk_sp<Bitmap> dstBitmap =
	Bitmap::allocateHeapBitmap(srcBitmap.info().makeColorType(dstColorType));
	if (dstBitmap && srcBitmap.readPixels(dstBitmap->info(), dstBitmap->pixels(),
	dstBitmap->rowBytes(), 0, 0)) {
	return TypeCast::toABitmap(dstBitmap.release());
	}
	}
	return nullptr;
	}

	static AndroidBitmapInfo getInfo(const SkImageInfo& imageInfo, uint32_t rowBytes, bool isHardware) {
	AndroidBitmapInfo info;
	info.width = imageInfo.width();
	info.height = imageInfo.height();
	info.stride = rowBytes;
	info.format = getFormat(imageInfo);
	info.flags = getInfoFlags(imageInfo, isHardware);
	return info;
	}

	AndroidBitmapInfo ABitmap_getInfo(ABitmap* bitmapHandle) {
	Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
	return getInfo(bitmap->info(), bitmap->rowBytes(), bitmap->isHardware());
	}

	ADataSpace ABitmap_getDataSpace(ABitmap* bitmapHandle) {
	Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
	const SkImageInfo& info = bitmap->info();
	return (ADataSpace)uirenderer::ColorSpaceToADataSpace(info.colorSpace(), info.colorType());
	}

	AndroidBitmapInfo ABitmap_getInfoFromJava(JNIEnv* env, jobject bitmapObj) {
	uint32_t rowBytes = 0;
	bool isHardware = false;
	SkImageInfo imageInfo = GraphicsJNI::getBitmapInfo(env, bitmapObj, &rowBytes, &isHardware);
	return getInfo(imageInfo, rowBytes, isHardware);
	}

	void* ABitmap_getPixels(ABitmap* bitmapHandle) {
	Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
	if (bitmap->isHardware()) {
	return nullptr;
	}
	return bitmap->pixels();
	}

	AndroidBitmapFormat ABitmapConfig_getFormatFromConfig(JNIEnv* env, jobject bitmapConfigObj) {
	return GraphicsJNI::getFormatFromConfig(env, bitmapConfigObj);
	}

	jobject ABitmapConfig_getConfigFromFormat(JNIEnv* env, AndroidBitmapFormat format) {
	return GraphicsJNI::getConfigFromFormat(env, format);
	}

	void ABitmap_notifyPixelsChanged(ABitmap* bitmapHandle) {
	Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
	if (bitmap->isImmutable()) {
	ALOGE("Attempting to modify an immutable Bitmap!");
	}
	return bitmap->notifyPixelsChanged();
	}

	namespace {
	SkAlphaType getAlphaType(const AndroidBitmapInfo* info) {
	switch (info->flags & ANDROID_BITMAP_FLAGS_ALPHA_MASK) {
	case ANDROID_BITMAP_FLAGS_ALPHA_OPAQUE:
	return kOpaque_SkAlphaType;
	case ANDROID_BITMAP_FLAGS_ALPHA_PREMUL:
	return kPremul_SkAlphaType;
	case ANDROID_BITMAP_FLAGS_ALPHA_UNPREMUL:
	return kUnpremul_SkAlphaType;
	default:
	return kUnknown_SkAlphaType;
	}
	}

	class CompressWriter : public SkWStream {
	public:
	CompressWriter(void* userContext, AndroidBitmap_CompressWriteFunc fn)
	: mUserContext(userContext), mFn(fn), mBytesWritten(0) {}

	bool write(const void* buffer, size_t size) override {
	if (mFn(mUserContext, buffer, size)) {
	mBytesWritten += size;
	return true;
	}
	return false;
	}

	size_t bytesWritten() const override { return mBytesWritten; }

	private:
	void* mUserContext;
	AndroidBitmap_CompressWriteFunc mFn;
	size_t mBytesWritten;
	};

	} // anonymous namespace

	int ABitmap_compress(const AndroidBitmapInfo* info, ADataSpace dataSpace, const void* pixels,
	AndroidBitmapCompressFormat inFormat, int32_t quality, void* userContext,
	AndroidBitmap_CompressWriteFunc fn) {
	Bitmap::JavaCompressFormat format;
	switch (inFormat) {
	case ANDROID_BITMAP_COMPRESS_FORMAT_JPEG:
	format = Bitmap::JavaCompressFormat::Jpeg;
	break;
	case ANDROID_BITMAP_COMPRESS_FORMAT_PNG:
	format = Bitmap::JavaCompressFormat::Png;
	break;
	case ANDROID_BITMAP_COMPRESS_FORMAT_WEBP_LOSSY:
	format = Bitmap::JavaCompressFormat::WebpLossy;
	break;
	case ANDROID_BITMAP_COMPRESS_FORMAT_WEBP_LOSSLESS:
	format = Bitmap::JavaCompressFormat::WebpLossless;
	break;
	default:
	// kWEBP_JavaEncodeFormat is a valid parameter for Bitmap::compress,
	// for the deprecated Bitmap.CompressFormat.WEBP, but it should not
	// be provided via the NDK. Other integers are likewise invalid.
	return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
	}

	SkColorType colorType;
	switch (info->format) {
	case ANDROID_BITMAP_FORMAT_RGBA_8888:
	colorType = kN32_SkColorType;
	break;
	case ANDROID_BITMAP_FORMAT_RGB_565:
	colorType = kRGB_565_SkColorType;
	break;
	case ANDROID_BITMAP_FORMAT_A_8:
	// FIXME b/146637821: Should this encode as grayscale? We should
	// make the same decision as for encoding an android.graphics.Bitmap.
	// Note that encoding kAlpha_8 as WebP or JPEG will fail. Encoding
	// it to PNG encodes as GRAY+ALPHA with a secret handshake that we
	// only care about the alpha. I'm not sure whether Android decoding
	// APIs respect that handshake.
	colorType = kAlpha_8_SkColorType;
	break;
	case ANDROID_BITMAP_FORMAT_RGBA_F16:
	colorType = kRGBA_F16_SkColorType;
	break;
	default:
	return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
	}

	auto alphaType = getAlphaType(info);
	if (alphaType == kUnknown_SkAlphaType) {
	return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
	}

	sk_sp<SkColorSpace> cs;
	if (info->format == ANDROID_BITMAP_FORMAT_A_8) {
	// FIXME: A Java Bitmap with ALPHA_8 never has a ColorSpace. So should
	// we force that here (as I'm doing now) or should we treat anything
	// besides ADATASPACE_UNKNOWN as an error?
	cs = nullptr;
	} else {
	cs = uirenderer::DataSpaceToColorSpace((android_dataspace) dataSpace);
	// DataSpaceToColorSpace treats UNKNOWN as SRGB, but compress forces the
	// client to specify SRGB if that is what they want.
	if (!cs \|\| dataSpace == ADATASPACE_UNKNOWN) {
	return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
	}
	}

	{
	size_t size;
	if (!Bitmap::computeAllocationSize(info->stride, info->height, &size)) {
	return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
	}
	}

	auto imageInfo =
	SkImageInfo::Make(info->width, info->height, colorType, alphaType, std::move(cs));
	SkBitmap bitmap;
	// We are not going to modify the pixels, but installPixels expects them to
	// not be const, since for all it knows we might want to draw to the SkBitmap.
	if (!bitmap.installPixels(imageInfo, const_cast<void*>(pixels), info->stride)) {
	return ANDROID_BITMAP_RESULT_BAD_PARAMETER;
	}

	CompressWriter stream(userContext, fn);
	return Bitmap::compress(bitmap, format, quality, &stream) ? ANDROID_BITMAP_RESULT_SUCCESS
	: ANDROID_BITMAP_RESULT_JNI_EXCEPTION;
	}

	AHardwareBuffer* ABitmap_getHardwareBuffer(ABitmap* bitmapHandle) {
	Bitmap* bitmap = TypeCast::toBitmap(bitmapHandle);
	AHardwareBuffer* buffer = bitmap->hardwareBuffer();
	if (buffer) {
	AHardwareBuffer_acquire(buffer);
	}
	return buffer;
	}