Java example source code file (GraphicsPrimitiveMgr.h)
The GraphicsPrimitiveMgr.h Java example source code
/*
* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#ifndef GraphicsPrimitiveMgr_h_Included
#define GraphicsPrimitiveMgr_h_Included
#ifdef __cplusplus
extern "C" {
#endif
#include <stddef.h>
#include "java_awt_AlphaComposite.h"
#include "SurfaceData.h"
#include "SpanIterator.h"
#include "j2d_md.h"
#include "AlphaMath.h"
#include "GlyphImageRef.h"
/*
* This structure contains all of the information about a particular
* type of GraphicsPrimitive, such as a FillRect, a MaskFill, or a Blit.
*
* A global collection of these structures is declared and initialized
* to contain the necessary Java (JNI) information so that appropriate
* Java GraphicsPrimitive objects can be quickly constructed for a set
* of native loops simply by referencing the necessary entry from that
* collection for the type of primitive being registered.
*
* See PrimitiveTypes.{Blit,BlitBg,FillRect,...} below.
*/
typedef struct _PrimitiveType {
char *ClassName;
jint srcflags;
jint dstflags;
jclass ClassObject;
jmethodID Constructor;
} PrimitiveType;
/* The integer constants to identify the compositing rule being defined. */
#define RULE_Xor (java_awt_AlphaComposite_MIN_RULE - 1)
#define RULE_Clear java_awt_AlphaComposite_CLEAR
#define RULE_Src java_awt_AlphaComposite_SRC
#define RULE_SrcOver java_awt_AlphaComposite_SRC_OVER
#define RULE_DstOver java_awt_AlphaComposite_DST_OVER
#define RULE_SrcIn java_awt_AlphaComposite_SRC_IN
#define RULE_DstIn java_awt_AlphaComposite_DST_IN
#define RULE_SrcOut java_awt_AlphaComposite_SRC_OUT
#define RULE_DstOut java_awt_AlphaComposite_DST_OUT
/*
* This structure holds the information retrieved from a Java
* Composite object for easy transfer to various C functions
* that implement the inner loop for a native primitive.
*
* Currently only AlphaComposite and XORComposite are supported.
*/
typedef struct _CompositeInfo {
jint rule; /* See RULE_* constants above */
union {
jfloat extraAlpha; /* from AlphaComposite */
jint xorPixel; /* from XORComposite */
} details;
juint alphaMask; /* from XORComposite */
} CompositeInfo;
/*
* This structure is the common header for the two native structures
* that hold information about a particular SurfaceType or CompositeType.
*
* A global collection of these structures is declared and initialized
* to contain the necessary Java (JNI) information so that appropriate
* Java GraphicsPrimitive objects can be quickly constructed for a set
* of native loops simply by referencing the necessary entry from that
* collection for the type of composite or surface being implemented.
*
* See SurfaceTypes.{OpaqueColor,IntArgb,ByteGray,...} below.
* See CompositeTypes.{Xor,AnyAlpha,...} below.
*/
typedef struct _SurfCompHdr {
char *Name;
jobject Object;
} SurfCompHdr;
/*
* The definitions for the SurfaceType structure described above.
*/
/*
* The signature for a function that returns the specific integer
* format pixel for a given ARGB color value for a particular
* SurfaceType implementation.
* This function is valid only after GetRasInfo call for the
* associated surface.
*/
typedef jint (PixelForFunc)(SurfaceDataRasInfo *pRasInfo, jint rgb);
/*
* The additional information needed to manipulate a surface:
* - The pixelFor function for translating ARGB values.
* Valid only after GetRasInfo call for this surface.
* - The additional flags needed when reading from this surface.
* - The additional flags needed when writing to this surface.
*/
typedef struct _SurfaceType {
SurfCompHdr hdr;
PixelForFunc *pixelFor;
jint readflags;
jint writeflags;
} SurfaceType;
/*
* The definitions for the CompositeType structure described above.
*/
/*
* The signature for a function that fills in a CompositeInfo
* structure from the information present in a given Java Composite
* object.
*/
typedef void (JNICALL CompInfoFunc)(JNIEnv *env,
CompositeInfo *pCompInfo,
jobject Composite);
/*
* The additional information needed to implement a primitive that
* performs a particular composite operation:
* - The getCompInfo function for filling in a CompositeInfo structure.
* - The additional flags needed for locking the destination surface.
*/
typedef struct _CompositeType {
SurfCompHdr hdr;
CompInfoFunc *getCompInfo;
jint dstflags;
} CompositeType;
/*
* The signature of the native functions that register a set of
* related native GraphicsPrimitive functions.
*/
typedef jboolean (RegisterFunc)(JNIEnv *env);
struct _NativePrimitive; /* forward reference for function typedefs */
/*
* This empty function signature represents an "old pre-ANSI style"
* function declaration which makes no claims about the argument list
* other than that the types of the arguments will undergo argument
* promotion in the calling conventions.
* (See section A7.3.2 in K&R 2nd edition.)
*
* When trying to statically initialize the function pointer field of
* a NativePrimitive structure, which is a union of all possible
* inner loop function signatures, the initializer constant must be
* compatible with the first field in the union. This generic function
* type allows us to assign any function pointer to that union as long
* as it meets the requirements specified above (i.e. all arguments
* are compatible with their promoted values according to the old
* style argument promotion calling semantics).
*
* Note: This means that you cannot define an argument to any of
* these native functions which is a byte or a short as that value
* would not be passed in the same way for an ANSI-style full prototype
* calling convention and an old-style argument promotion calling
* convention.
*/
typedef void (AnyFunc)();
/*
* The signature of the inner loop function for a "Blit".
*/
typedef void (BlitFunc)(void *pSrc, void *pDst,
juint width, juint height,
SurfaceDataRasInfo *pSrcInfo,
SurfaceDataRasInfo *pDstInfo,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "BlitBg".
*/
typedef void (BlitBgFunc)(void *pSrc, void *pDst,
juint width, juint height, jint bgpixel,
SurfaceDataRasInfo *pSrcInfo,
SurfaceDataRasInfo *pDstInfo,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "ScaleBlit".
*/
typedef void (ScaleBlitFunc)(void *pSrc, void *pDst,
juint dstwidth, juint dstheight,
jint sxloc, jint syloc,
jint sxinc, jint syinc, jint scale,
SurfaceDataRasInfo *pSrcInfo,
SurfaceDataRasInfo *pDstInfo,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "FillRect".
*/
typedef void (FillRectFunc)(SurfaceDataRasInfo *pRasInfo,
jint lox, jint loy,
jint hix, jint hiy,
jint pixel, struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "FillSpans".
*/
typedef void (FillSpansFunc)(SurfaceDataRasInfo *pRasInfo,
SpanIteratorFuncs *pSpanFuncs, void *siData,
jint pixel, struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "DrawLine".
* Note that this same inner loop is used for native DrawRect
* and DrawPolygons primitives.
*/
typedef void (DrawLineFunc)(SurfaceDataRasInfo *pRasInfo,
jint x1, jint y1, jint pixel,
jint steps, jint error,
jint bumpmajormask, jint errmajor,
jint bumpminormask, jint errminor,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "MaskFill".
*/
typedef void (MaskFillFunc)(void *pRas,
unsigned char *pMask, jint maskOff, jint maskScan,
jint width, jint height,
jint fgColor,
SurfaceDataRasInfo *pRasInfo,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "MaskBlit".
*/
typedef void (MaskBlitFunc)(void *pDst, void *pSrc,
unsigned char *pMask, jint maskOff, jint maskScan,
jint width, jint height,
SurfaceDataRasInfo *pDstInfo,
SurfaceDataRasInfo *pSrcInfo,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "DrawGlyphList".
*/
typedef void (DrawGlyphListFunc)(SurfaceDataRasInfo *pRasInfo,
ImageRef *glyphs,
jint totalGlyphs,
jint fgpixel, jint fgcolor,
jint cx1, jint cy1,
jint cx2, jint cy2,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "DrawGlyphListAA".
*/
typedef void (DrawGlyphListAAFunc)(SurfaceDataRasInfo *pRasInfo,
ImageRef *glyphs,
jint totalGlyphs,
jint fgpixel, jint fgcolor,
jint cx1, jint cy1,
jint cx2, jint cy2,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop function for a "DrawGlyphListLCD".
* rgbOrder is a jint rather than a jboolean so that this typedef matches
* AnyFunc which is the first element in a union in NativePrimitive's
* initialiser. See the comments alongside declaration of the AnyFunc type for
* a full explanation.
*/
typedef void (DrawGlyphListLCDFunc)(SurfaceDataRasInfo *pRasInfo,
ImageRef *glyphs,
jint totalGlyphs,
jint fgpixel, jint fgcolor,
jint cx1, jint cy1,
jint cx2, jint cy2,
jint rgbOrder,
unsigned char *gammaLut,
unsigned char *invGammaLut,
struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
/*
* The signature of the inner loop functions for a "TransformHelper".
*/
typedef void (TransformHelperFunc)(SurfaceDataRasInfo *pSrcInfo,
jint *pRGB, jint numpix,
jlong xlong, jlong dxlong,
jlong ylong, jlong dylong);
typedef struct {
TransformHelperFunc *nnHelper;
TransformHelperFunc *blHelper;
TransformHelperFunc *bcHelper;
} TransformHelperFuncs;
typedef void (TransformInterpFunc)(jint *pRGBbase, jint numpix,
jint xfract, jint dxfract,
jint yfract, jint dyfract);
/*
* The signature of the inner loop function for a "FillParallelogram"
* Note that this same inner loop is used for native DrawParallelogram
* primitives.
* Note that these functions are paired with equivalent DrawLine
* inner loop functions to facilitate nicer looking and faster thin
* transformed drawrect calls.
*/
typedef void (FillParallelogramFunc)(SurfaceDataRasInfo *pRasInfo,
jint lox, jint loy, jint hix, jint hiy,
jlong leftx, jlong dleftx,
jlong rightx, jlong drightx,
jint pixel, struct _NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
typedef struct {
FillParallelogramFunc *fillpgram;
DrawLineFunc *drawline;
} DrawParallelogramFuncs;
/*
* This structure contains all information for defining a single
* native GraphicsPrimitive, including:
* - The information about the type of the GraphicsPrimitive subclass.
* - The information about the type of the source surface.
* - The information about the type of the compositing operation.
* - The information about the type of the destination surface.
* - A pointer to the function that performs the actual inner loop work.
* - Extra flags needed for locking the source and destination surfaces
* above and beyond the flags specified in the Primitive, Composite
* and SurfaceType structures. (For most native primitives these
* flags can be calculated automatically from information stored in
* the PrimitiveType, SurfaceType, and CompositeType structures.)
*/
typedef struct _NativePrimitive {
PrimitiveType *pPrimType;
SurfaceType *pSrcType;
CompositeType *pCompType;
SurfaceType *pDstType;
/* See declaration of AnyFunc type above for comments explaining why
* only AnyFunc is used by the initializers for these union fields
* and consequent type restrictions.
*/
union {
AnyFunc *initializer;
BlitFunc *blit;
BlitBgFunc *blitbg;
ScaleBlitFunc *scaledblit;
FillRectFunc *fillrect;
FillSpansFunc *fillspans;
FillParallelogramFunc *fillparallelogram;
DrawParallelogramFuncs *drawparallelogram;
DrawLineFunc *drawline;
MaskFillFunc *maskfill;
MaskBlitFunc *maskblit;
DrawGlyphListFunc *drawglyphlist;
DrawGlyphListFunc *drawglyphlistaa;
DrawGlyphListLCDFunc *drawglyphlistlcd;
TransformHelperFuncs *transformhelpers;
} funcs, funcs_c;
jint srcflags;
jint dstflags;
} NativePrimitive;
/*
* This function should be defined to return a pointer to
* an accelerated version of a primitive function 'func_c'
* if it exists and to return a copy of the input parameter
* otherwise.
*/
extern AnyFunc* MapAccelFunction(AnyFunc *func_c);
/*
* The global collection of all primitive types. Specific NativePrimitive
* structures can be statically initialized by pointing to these structures.
*/
extern struct _PrimitiveTypes {
PrimitiveType Blit;
PrimitiveType BlitBg;
PrimitiveType ScaledBlit;
PrimitiveType FillRect;
PrimitiveType FillSpans;
PrimitiveType FillParallelogram;
PrimitiveType DrawParallelogram;
PrimitiveType DrawLine;
PrimitiveType DrawRect;
PrimitiveType DrawPolygons;
PrimitiveType DrawPath;
PrimitiveType FillPath;
PrimitiveType MaskBlit;
PrimitiveType MaskFill;
PrimitiveType DrawGlyphList;
PrimitiveType DrawGlyphListAA;
PrimitiveType DrawGlyphListLCD;
PrimitiveType TransformHelper;
} PrimitiveTypes;
/*
* The global collection of all surface types. Specific NativePrimitive
* structures can be statically initialized by pointing to these structures.
*/
extern struct _SurfaceTypes {
SurfaceType OpaqueColor;
SurfaceType AnyColor;
SurfaceType AnyByte;
SurfaceType ByteBinary1Bit;
SurfaceType ByteBinary2Bit;
SurfaceType ByteBinary4Bit;
SurfaceType ByteIndexed;
SurfaceType ByteIndexedBm;
SurfaceType ByteGray;
SurfaceType Index8Gray;
SurfaceType Index12Gray;
SurfaceType AnyShort;
SurfaceType Ushort555Rgb;
SurfaceType Ushort555Rgbx;
SurfaceType Ushort565Rgb;
SurfaceType Ushort4444Argb;
SurfaceType UshortGray;
SurfaceType UshortIndexed;
SurfaceType Any3Byte;
SurfaceType ThreeByteBgr;
SurfaceType AnyInt;
SurfaceType IntArgb;
SurfaceType IntArgbPre;
SurfaceType IntArgbBm;
SurfaceType IntRgb;
SurfaceType IntBgr;
SurfaceType IntRgbx;
SurfaceType Any4Byte;
SurfaceType FourByteAbgr;
SurfaceType FourByteAbgrPre;
} SurfaceTypes;
/*
* The global collection of all composite types. Specific NativePrimitive
* structures can be statically initialized by pointing to these structures.
*/
extern struct _CompositeTypes {
CompositeType SrcNoEa;
CompositeType SrcOverNoEa;
CompositeType SrcOverBmNoEa;
CompositeType Src;
CompositeType SrcOver;
CompositeType Xor;
CompositeType AnyAlpha;
} CompositeTypes;
#define ArraySize(A) (sizeof(A) / sizeof(A[0]))
#define PtrAddBytes(p, b) ((void *) (((intptr_t) (p)) + (b)))
#define PtrCoord(p, x, xinc, y, yinc) PtrAddBytes(p, \
((ptrdiff_t)(y))*(yinc) + \
((ptrdiff_t)(x))*(xinc))
/*
* The function to call with an array of NativePrimitive structures
* to register them with the Java GraphicsPrimitiveMgr.
*/
extern jboolean RegisterPrimitives(JNIEnv *env,
NativePrimitive *pPrim,
jint NumPrimitives);
/*
* The utility function to retrieve the NativePrimitive structure
* from a given Java GraphicsPrimitive object.
*/
extern JNIEXPORT NativePrimitive * JNICALL
GetNativePrim(JNIEnv *env, jobject gp);
/*
* Utility functions to get values from a Java SunGraphics2D or Color object.
*/
extern JNIEXPORT void JNICALL
GrPrim_Sg2dGetCompInfo(JNIEnv *env, jobject sg2d,
NativePrimitive *pPrim,
CompositeInfo *pCompInfo);
extern JNIEXPORT jint JNICALL
GrPrim_CompGetXorColor(JNIEnv *env, jobject comp);
extern JNIEXPORT void JNICALL
GrPrim_CompGetXorInfo(JNIEnv *env, CompositeInfo *pCompInfo, jobject comp);
extern JNIEXPORT void JNICALL
GrPrim_CompGetAlphaInfo(JNIEnv *env, CompositeInfo *pCompInfo, jobject comp);
extern JNIEXPORT void JNICALL
GrPrim_Sg2dGetClip(JNIEnv *env, jobject sg2d,
SurfaceDataBounds *bounds);
extern JNIEXPORT jint JNICALL
GrPrim_Sg2dGetPixel(JNIEnv *env, jobject sg2d);
extern JNIEXPORT jint JNICALL
GrPrim_Sg2dGetEaRGB(JNIEnv *env, jobject sg2d);
extern JNIEXPORT jint JNICALL
GrPrim_Sg2dGetLCDTextContrast(JNIEnv *env, jobject sg2d);
/*
* Data structure and functions to retrieve and use
* AffineTransform objects from the native level.
*/
typedef struct {
jdouble dxdx; /* dx in dest space for each dx in src space */
jdouble dxdy; /* dx in dest space for each dy in src space */
jdouble tx;
jdouble dydx; /* dy in dest space for each dx in src space */
jdouble dydy; /* dy in dest space for each dy in src space */
jdouble ty;
} TransformInfo;
extern JNIEXPORT void JNICALL
Transform_GetInfo(JNIEnv *env, jobject txform, TransformInfo *pTxInfo);
extern JNIEXPORT void JNICALL
Transform_transform(TransformInfo *pTxInfo, jdouble *pX, jdouble *pY);
void GrPrim_RefineBounds(SurfaceDataBounds *bounds, jint transX, jint transY,
jfloat *coords, jint maxCoords);
extern jfieldID path2DTypesID;
extern jfieldID path2DNumTypesID;
extern jfieldID path2DWindingRuleID;
extern jfieldID path2DFloatCoordsID;
extern jfieldID sg2dStrokeHintID;
extern jint sunHints_INTVAL_STROKE_PURE;
/*
* Macros for using jlong variables as 32bits.32bits fractional values
*/
#define LongOneHalf (((jlong) 1) << 31)
#define IntToLong(i) (((jlong) (i)) << 32)
#define DblToLong(d) ((jlong) ((d) * IntToLong(1)))
#define LongToDbl(l) (((jdouble) l) / IntToLong(1))
#define WholeOfLong(l) ((jint) ((l) >> 32))
#define FractOfLong(l) ((jint) (l))
#define URShift(i, n) (((juint) (i)) >> (n))
/*
* Macros to help in defining arrays of NativePrimitive structures.
*
* These macros are the very base macros. More specific macros are
* defined in LoopMacros.h.
*
* Note that the DrawLine, DrawRect, and DrawPolygons primitives are
* all registered together from a single shared native function pointer.
*/
#define REGISTER_PRIMITIVE(TYPE, SRC, COMP, DST, FUNC) \
{ \
& PrimitiveTypes.TYPE, \
& SurfaceTypes.SRC, \
& CompositeTypes.COMP, \
& SurfaceTypes.DST, \
{FUNC}, \
{FUNC}, \
0, \
0 \
}
#define REGISTER_PRIMITIVE_FLAGS(TYPE, SRC, COMP, DST, FUNC, SFLAGS, DFLAGS) \
{ \
& PrimitiveTypes.TYPE, \
& SurfaceTypes.SRC, \
& CompositeTypes.COMP, \
& SurfaceTypes.DST, \
{FUNC}, \
{FUNC}, \
SFLAGS, \
DFLAGS, \
}
#define REGISTER_BLIT(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(Blit, SRC, COMP, DST, FUNC)
#define REGISTER_BLIT_FLAGS(SRC, COMP, DST, FUNC, SFLAGS, DFLAGS) \
REGISTER_PRIMITIVE_FLAGS(Blit, SRC, COMP, DST, FUNC, SFLAGS, DFLAGS)
#define REGISTER_SCALEBLIT(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(ScaledBlit, SRC, COMP, DST, FUNC)
#define REGISTER_SCALEBLIT_FLAGS(SRC, COMP, DST, FUNC, SFLAGS, DFLAGS) \
REGISTER_PRIMITIVE_FLAGS(ScaledBlit, SRC, COMP, DST, FUNC, SFLAGS, DFLAGS)
#define REGISTER_BLITBG(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(BlitBg, SRC, COMP, DST, FUNC)
#define REGISTER_FILLRECT(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(FillRect, SRC, COMP, DST, FUNC)
#define REGISTER_FILLSPANS(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(FillSpans, SRC, COMP, DST, FUNC)
#define REGISTER_FILLPGRAM(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(FillParallelogram, SRC, COMP, DST, FUNC), \
REGISTER_PRIMITIVE(DrawParallelogram, SRC, COMP, DST, FUNC)
#define REGISTER_LINE_PRIMITIVES(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(DrawLine, SRC, COMP, DST, FUNC), \
REGISTER_PRIMITIVE(DrawRect, SRC, COMP, DST, FUNC), \
REGISTER_PRIMITIVE(DrawPolygons, SRC, COMP, DST, FUNC), \
REGISTER_PRIMITIVE(DrawPath, SRC, COMP, DST, FUNC), \
REGISTER_PRIMITIVE(FillPath, SRC, COMP, DST, FUNC)
#define REGISTER_MASKBLIT(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(MaskBlit, SRC, COMP, DST, FUNC)
#define REGISTER_MASKFILL(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(MaskFill, SRC, COMP, DST, FUNC)
#define REGISTER_DRAWGLYPHLIST(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(DrawGlyphList, SRC, COMP, DST, FUNC)
#define REGISTER_DRAWGLYPHLISTAA(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(DrawGlyphListAA, SRC, COMP, DST, FUNC)
#define REGISTER_DRAWGLYPHLISTLCD(SRC, COMP, DST, FUNC) \
REGISTER_PRIMITIVE(DrawGlyphListLCD, SRC, COMP, DST, FUNC)
#ifdef __cplusplus
};
#endif
#endif /* GraphicsPrimitiveMgr_h_Included */
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