Binary compatibility report for the libdmtx library between 0.4.0 and 0.5.0 versions on x86

Test Info

Library Name	libdmtx
Version #1	0.4.0
Version #2	0.5.0
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	72 / 36
Verdict	Incompatible (64.6%)

Problem Summary

	Severity	Count
Added Symbols	-	12
Removed Symbols	High	18
Problems with Data Types	High	0
	Medium	10
	Low	6
Problems with Symbols	High	28
	Medium	32
	Low	13
Problems with Constants	Low	0
Other Changes in Constants	-	8

Added Symbols (12)

dmtx.h, libdmtx.so.0.0.0
dmtxDecodeFindNextRegion ( DmtxDecode* decode )
dmtxDecodeMatrixRegion ( DmtxDecode* dec, DmtxRegion* reg, int fix )
dmtxDecodeStructDeInit ( DmtxDecode* dec )
dmtxDecodeStructInit ( DmtxImage* img, DmtxPixelLoc p0, DmtxPixelLoc p1, int gap )
dmtxEncodeStructDeInit ( DmtxEncode* enc )
dmtxEncodeStructInit ( )
dmtxImageFree ( DmtxImage** img )
dmtxImageMalloc ( int width, int height )
dmtxMessageFree ( DmtxMessage** mesg )
dmtxMessageMalloc ( int sizeIdx )
dmtxScanPixel ( DmtxDecode* decode, DmtxPixelLoc loc )
dmtxVersion ( )

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Removed Symbols (18)

dmtx.h, libdmtx.so.0.0.0
dmtxDecodeGetMatrix ( DmtxDecode* decode, int index )
dmtxDecodeGetMatrixCount ( DmtxDecode* decode )
dmtxDecodeStructCreate ( )
dmtxDecodeStructDestroy ( DmtxDecode** decode )
dmtxEncodeStructCreate ( )
dmtxEncodeStructDestroy ( DmtxEncode** encode )
dmtxImageDeInit ( DmtxImage* image )
dmtxImageInit ( DmtxImage* image )
dmtxMatrixRegionDeInit ( DmtxMatrixRegion* region )
dmtxScanLine ( DmtxDecode* decode, enum DmtxDirection dir, int lineNbr )
dmtxScanStartNew ( DmtxDecode* decode )
dmtxSetBuildMatrixCallback2 ( DmtxDecode* decode, void(*func)(DmtxMatrixRegion*) )
dmtxSetBuildMatrixCallback3 ( DmtxDecode* decode, void(*func)(float[3]*) )
dmtxSetBuildMatrixCallback4 ( DmtxDecode* decode, void(*func)(float[3]*) )
dmtxSetFinalCallback ( DmtxDecode* decode, void(*func)(DmtxDecode*, DmtxMatrixRegion*) )
dmtxSetPlotModuleCallback ( DmtxDecode* decode, void(*func)(DmtxDecode*, DmtxMatrixRegion*, int, int, DmtxColor3) )
dmtxSetPlotPointCallback ( DmtxDecode* decode, void(*func)(DmtxVector2, int, int, int) )
dmtxSetXfrmPlotPointCallback ( DmtxDecode* decode, void(*func)(DmtxVector2, float[3]*, int, int) )

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Problems with Symbols, High Severity (28)

	Change	Effect
1	Type of 2nd parameter dist has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 3rd parameter s has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter s has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter b0 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Type of 3rd parameter b1 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
3	Type of 4th parameter sz has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter b0 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Type of 3rd parameter b1 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
3	Type of 4th parameter sz has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter b0 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Type of 3rd parameter b1 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
3	Type of 4th parameter sz has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter b0 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Type of 3rd parameter b1 has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
3	Type of 4th parameter sz has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter sx has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Type of 3rd parameter sy has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter shx has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Type of 3rd parameter shy has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter tx has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Type of 3rd parameter ty has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 3rd parameter t has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 3rd parameter t has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Parameter mapping of type DmtxMessage* has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	Parameter sizeIdx of type int has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
3	1st middle parameter region has been removed from the calling stack.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 3rd parameter s has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 2nd parameter s has been changed from float (4 bytes) to double (8 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

dmtx.h, libdmtx.so.0.0.0
[+] dmtxColor3AlongRay3 ( DmtxRay3* ray, float dist ) (1)
[+] dmtxColor3Scale ( DmtxColor3* vOut, DmtxColor3* v, float s ) (1)
[+] dmtxColor3ScaleBy ( DmtxColor3* v, float s ) (1)
[+] dmtxMatrix3LineSkewSide ( float[3]* m, float b0, float b1, float sz ) (3)
[+] dmtxMatrix3LineSkewSideInv ( float[3]* m, float b0, float b1, float sz ) (3)
[+] dmtxMatrix3LineSkewTop ( float[3]* m, float b0, float b1, float sz ) (3)
[+] dmtxMatrix3LineSkewTopInv ( float[3]* m, float b0, float b1, float sz ) (3)
[+] dmtxMatrix3Scale ( float[3]* m, float sx, float sy ) (2)
[+] dmtxMatrix3Shear ( float[3]* m, float shx, float shy ) (2)
[+] dmtxMatrix3Translate ( float[3]* m, float tx, float ty ) (2)
[+] dmtxPointAlongRay2 ( DmtxVector2* point, DmtxRay2* r, float t ) (1)
[+] dmtxPointAlongRay3 ( DmtxColor3* point, DmtxRay3* r, float t ) (1)
[+] dmtxSymbolModuleStatus ( DmtxMatrixRegion* region, int row, int col ) (3)
[+] dmtxVector2Scale ( DmtxVector2* vOut, DmtxVector2* v, float s ) (1)
[+] dmtxVector2ScaleBy ( DmtxVector2* v, float s ) (1)

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Problems with Data Types, Medium Severity (10)

	Change	Effect
1	Field message has been added at the middle position of this structural type.	1) Size of the inclusive type has been changed. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
2	Field region has been added at the middle position of this structural type.	1) Size of the inclusive type has been changed. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
3	Size of field xfrm has been changed from 36 bytes to 72 bytes.	1) Size of the inclusive type has been changed. 2) Previous accesses of applications and library functions to this field and fields at higher positions of the structure definition may be broken.
4	Size of field rxfrm has been changed from 36 bytes to 72 bytes.	1) Size of the inclusive type has been changed. 2) Previous accesses of applications and library functions to this field may be broken.
5	Type of field image has been changed from DmtxImage (12 bytes) to DmtxImage* (4 bytes).	This field may be incorrectly initialized or accessed by applications.
6	Field matrix has been removed from this type.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
7	The pointer level of field image has been increased from 0 to 1.	The library functions may try to access unallocated memory by the dereferencing of old field value and therefore cause a crash of applications.

	Change	Effect
1	Field pageCount has been added at the middle position of this structural type.	1) Size of the inclusive type has been changed. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

	Change	Effect
1	Type of field tMax has been changed from float (4 bytes) to double (8 bytes).	1) Size of the inclusive type has been changed. 2) Previous accesses of applications and library functions to this field and fields at higher positions of the structure definition may be broken.
2	Type of field tMin has been changed from float (4 bytes) to double (8 bytes).	1) Size of the inclusive type has been changed. 2) Previous accesses of applications and library functions to this field and fields at higher positions of the structure definition may be broken.

dmtx.h
[+] struct DmtxEncode_struct (7)
[+] struct DmtxImage_struct (1)
[+] struct DmtxRay2_struct (2)

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Problems with Symbols, Medium Severity (32)

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float to int.	The return value became passed in different register. Applications will read the wrong memory block instead of the return value. Also, distribution of parameters on the available registers and stack may be changed.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Base type of 1st parameter m0 has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.
2	Base type of 2nd parameter m1 has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 2nd parameter m0 has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.
2	Base type of 3rd parameter m1 has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.
3	Base type of 1st parameter mOut has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m0 has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.
2	Base type of 2nd parameter m1 has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	The pointer level of return value has been decreased from 1 to 0.	Applications may try to access unallocated memory by the dereferencing of new return value and therefore cause a crash.
2	Base type of 3rd parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	The pointer level of return value has been decreased from 1 to 0.	Applications may try to access unallocated memory by the dereferencing of new return value and therefore cause a crash.
2	Base type of 2nd parameter m has been changed from float (4 bytes) to double (8 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float (4 bytes) to double (8 bytes).	Applications will obtain a different return value and execution may change.

	Change	Effect
1	Type of return value has been changed from float to int.	The return value became passed in different register. Applications will read the wrong memory block instead of the return value. Also, distribution of parameters on the available registers and stack may be changed.

dmtx.h, libdmtx.so.0.0.0
[+] dmtxColor3Dot ( DmtxColor3* v1, DmtxColor3* v2 ) (1)
[+] dmtxColor3Mag ( DmtxColor3* v ) (1)
[+] dmtxColor3Norm ( DmtxColor3* v ) (1)
[+] dmtxDistanceAlongRay2 ( DmtxRay2* r, DmtxVector2* q ) (1)
[+] dmtxDistanceAlongRay3 ( DmtxRay3* r, DmtxColor3* q ) (1)
[+] dmtxDistanceFromRay2 ( DmtxRay2* r, DmtxVector2* q ) (1)
[+] dmtxDistanceFromRay3 ( DmtxRay3* r, DmtxColor3* q ) (1)
[+] dmtxMatrix3Copy ( float[3]* m0, float[3]* m1 ) (2)
[+] dmtxMatrix3Identity ( float[3]* m ) (1)
[+] dmtxMatrix3LineSkewSide ( float[3]* m, float b0, float b1, float sz ) (1)
[+] dmtxMatrix3LineSkewSideInv ( float[3]* m, float b0, float b1, float sz ) (1)
[+] dmtxMatrix3LineSkewTop ( float[3]* m, float b0, float b1, float sz ) (1)
[+] dmtxMatrix3LineSkewTopInv ( float[3]* m, float b0, float b1, float sz ) (1)
[+] dmtxMatrix3Multiply ( float[3]* mOut, float[3]* m0, float[3]* m1 ) (3)
[+] dmtxMatrix3MultiplyBy ( float[3]* m0, float[3]* m1 ) (2)
[+] dmtxMatrix3Print ( float[3]* m ) (1)
[+] dmtxMatrix3Rotate ( float[3]* m, double angle ) (1)
[+] dmtxMatrix3Scale ( float[3]* m, float sx, float sy ) (1)
[+] dmtxMatrix3Shear ( float[3]* m, float shx, float shy ) (1)
[+] dmtxMatrix3Translate ( float[3]* m, float tx, float ty ) (1)
[+] dmtxMatrix3VMultiply ( DmtxVector2* vOut, DmtxVector2* vIn, float[3]* m ) (2)
[+] dmtxMatrix3VMultiplyBy ( DmtxVector2* v, float[3]* m ) (2)
[+] dmtxVector2Cross ( DmtxVector2* v1, DmtxVector2* v2 ) (1)
[+] dmtxVector2Dot ( DmtxVector2* v1, DmtxVector2* v2 ) (1)
[+] dmtxVector2Mag ( DmtxVector2* v ) (1)
[+] dmtxVector2Norm ( DmtxVector2* v ) (1)

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Problems with Data Types, Low Severity (6)

	Change	Effect
1	Size of this type has been changed from 444 bytes to 616 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

	Change	Effect
1	Field compass has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Size of this type has been changed from 12 bytes to 20 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

	Change	Effect
1	Size of this type has been changed from 44 bytes to 52 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

dmtx.h
[+] struct DmtxEncode_struct (1)
[+] struct DmtxImage_struct (2)
[+] struct DmtxRay2_struct (1)
[+] typedef DmtxMatrix3 (2)

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Problems with Symbols, Low Severity (13)

dmtx.h, libdmtx.so.0.0.0
[+] dmtxColor3FromImage2 ( DmtxColor3* color, DmtxImage* image, DmtxVector2 p ) (1)
[+] dmtxEncodeDataMatrix ( DmtxEncode* encode, int inputSize, unsigned char* inputString, int sizeIdxRequest ) (3)
[+] dmtxEncodeDataMosaic ( DmtxEncode* encode, int inputSize, unsigned char* inputString, int sizeIdxRequest ) (3)
[+] dmtxImageGetHeight ( DmtxImage* image ) (1)
[+] dmtxImageGetOffset ( DmtxImage* image, enum DmtxDirection dir, int lineNbr, int offset ) (1)
[+] dmtxImageGetWidth ( DmtxImage* image ) (1)
[+] dmtxMatrix3VMultiply ( DmtxVector2* vOut, DmtxVector2* vIn, float[3]* m ) (1)
[+] dmtxMatrix3VMultiplyBy ( DmtxVector2* v, float[3]* m ) (1)
[+] dmtxPixelFromImage ( DmtxImage* image, int x, int y ) (1)

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Other Changes in Constants (8)

dmtx.h
[+] DMTX_MODULE_OFF
[+] DMTX_MODULE_UNSURE
[+] DMTX_REGION_EOF
[+] DMTX_REGION_FOUND
[+] DMTX_REGION_NOT_FOUND
[+] DMTX_STATUS_INVALID
[+] DMTX_STATUS_NOT_SCANNED
[+] DMTX_STATUS_VALID

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Header Files (1)

dmtx.h

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Shared Libraries (1)

libdmtx.so.0.0.0

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	Change	Effect
1	1st parameter encode has been renamed to enc.	Renaming of a parameter may indicate a change in its semantic meaning.
2	2nd parameter inputSize has been renamed to n.	Renaming of a parameter may indicate a change in its semantic meaning.
3	3rd parameter inputString has been renamed to s.	Renaming of a parameter may indicate a change in its semantic meaning.

	Change	Effect
1	1st parameter encode has been renamed to enc.	Renaming of a parameter may indicate a change in its semantic meaning.
2	2nd parameter inputSize has been renamed to n.	Renaming of a parameter may indicate a change in its semantic meaning.
3	3rd parameter inputString has been renamed to s.	Renaming of a parameter may indicate a change in its semantic meaning.

	Change	Effect
1	Size of this type has been changed from 36 bytes to 72 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.
2	Base type has been changed from float[3][3] to double[3][3].	Replacement of the base data type may indicate a change in its semantic meaning.