blob: c6cff454fedac595f7f64173c8152c8f01f42e57 [file] [log] [blame]
* Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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#import "QuartzSurfaceData.h"
#import <pthread.h>
typedef UInt8 Pixel8bit;
typedef UInt16 Pixel16bit;
typedef UInt32 Pixel32bit;
typedef struct _ImageSDOps ImageSDOps;
ImageSDOps* LockImage(JNIEnv* env, jobject imageSurfaceData);
void UnlockImage(JNIEnv* env, ImageSDOps* isdo);
ImageSDOps* LockImagePixels(JNIEnv* env, jobject imageSurfaceData);
void UnlockImagePixels(JNIEnv* env, ImageSDOps* isdo);
// if there is no image created for isdo.imgRef, it creates and image using the isdo.dataProvider
// If there is an image present, this is a no-op
void makeSureImageIsCreated(ImageSDOps* isdo);
typedef struct _ContextInfo
BOOL useWindowContextReference;
BOOL canUseJavaPixelsAsContext;
size_t bitsPerComponent;
size_t bytesPerPixel;
size_t bytesPerRow;
CGImageAlphaInfo alphaInfo;
CGColorSpaceRef colorSpace;
} ContextInfo;
typedef struct _ImageInfo
size_t bitsPerComponent;
size_t bitsPerPixel;
size_t bytesPerPixel;
size_t bytesPerRow;
CGImageAlphaInfo alphaInfo;
CGColorSpaceRef colorSpace;
} ImageInfo;
struct _ImageSDOps
QuartzSDOps qsdo; // must be the first entry!
ContextInfo contextInfo;
ImageInfo imageInfo;
BOOL isSubImage;
jint* javaImageInfo;
// parameters specifying this BufferedImage given to us from Java
jobject array;
jint offset;
jint width;
jint height;
jint javaPixelBytes;
jint javaPixelsBytesPerRow;
jobject icm;
jint type;
Pixel8bit* pixels;
Pixel8bit* pixelsLocked;
// needed by TYPE_BYTE_INDEXED
UInt16* indexedColorTable;
UInt32* lutData;
UInt32 lutDataSize;
// Used as a cached image ref created from the isdo.dataprovider. This is only a chached image, and it might become invalid
// if somebody draws on the bitmap context, or the pixels are changed in java. In that case, we need to NULL out
// this image and recreate it from the data provider.
CGImageRef imgRef;
// Cached instance of CGDataProvider. dataProvider is alloced the first time a bitmap context is created, providing the
// native pixels as a source of the data. The dataProviders life cycle is the same as ISDO. The reference gets
// released when we are done with the ISDO.
CGDataProviderRef dataProvider;
// Pointer in memory that is used for create the CGBitmapContext and the CGDataProvider (used for imgRef). This is a native
// copy of the pixels for the Image. There is a spearate copy of the pixels that lives in Java heap. There are two main
// reasons why we keep those pixels spearate: 1) CG doesn't support all the Java pixel formats 2) The Garbage collector can
// move the java pixels at any time. There are possible workarounds for both problems. Number 2) seems to be a more serious issue, since
// we can solve 1) by only supporting certain image types.
void * nativePixels;
NSGraphicsContext* nsRef;
pthread_mutex_t lock;
jint nrOfPixelsOwners;