Binary compatibility report for the libdmtx library between 0.5.2 and 0.6.0 versions on x86

Test Info

Library Name	libdmtx
Version #1	0.5.2
Version #2	0.6.0
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	76 / 53
Verdict	Incompatible (19.1%)

Problem Summary

	Severity	Count
Added Symbols	-	4
Removed Symbols	High	1
Problems with Data Types	High	3
	Medium	45
	Low	3
Problems with Symbols	High	0
	Medium	0
	Low	19
Problems with Constants	Low	6
Other Changes in Constants	-	2

Added Symbols (4)

dmtx.h, libdmtx.so.0.0.0
dmtxImageGetColor ( DmtxImage* img, int x, int y, int colorPlane )
dmtxRegionScanPixel ( DmtxDecode* decode, DmtxPixelLoc loc )
dmtxRegionUpdateCorners ( DmtxDecode* dec, DmtxRegion* reg, DmtxVector2 p00, DmtxVector2 p10, DmtxVector2 p11, DmtxVector2 p01 )
dmtxRegionUpdateXfrms ( DmtxDecode* dec, DmtxRegion* reg )

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Removed Symbols (1)

dmtx.h, libdmtx.so.0.0.0
dmtxScanPixel ( DmtxDecode* decode, DmtxPixelLoc loc )

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Problems with Data Types, High Severity (3)

	Change	Effect
1	Field chain has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 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 corners has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 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	Field gradient has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

dmtx.h
[+] struct DmtxRegion_struct (3)

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Problems with Data Types, Medium Severity (45)

	Change	Effect
1	Field edgeMax 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 edgeMin 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	Field sizeIdxExpected 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.
4	The relative position of field shrinkMin has been changed from 2 to 5.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
5	The relative position of field scanGap has been changed from 6 to 2.	Applications will access incorrect memory when attempting to access this field.
6	The relative position of field shrinkMax has been changed from 3 to 6.	Applications will access incorrect memory when attempting to access this field.

	Change	Effect
1	Size of field region has been changed from 448 bytes to 524 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.

	Change	Effect
1	Field cache has been added at the middle position of this structural type.	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 compass has been removed from this type.	Applications will access incorrect memory when attempting to access this field.

	Change	Effect
1	Field bottomAngle 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 bottomKnown 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	Field bottomLine 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.
4	Field bottomLoc 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.
5	Field boundMax 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.
6	Field boundMin 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.
7	Field finalNeg 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.
8	Field finalPos 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.
9	Field flowBegin 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.
10	Field jumpToNeg 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.
11	Field jumpToPos 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.
12	Field leftAngle 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.
13	Field leftKnown 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.
14	Field leftLine 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.
15	Field leftLoc 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.
16	Field locR 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.
17	Field locT 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.
18	Field offColor 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.
19	Field onColor 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.
20	Field polarity 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.
21	Field rightAngle 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.
22	Field rightKnown 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.
23	Field rightLoc 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.
24	Field stepR 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.
25	Field stepT 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.
26	Field stepsTotal 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.
27	Field topAngle 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.
28	Field topKnown 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.
29	Field topLoc 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.
30	The relative position of field fit2raw has been changed from 2 to 7.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
31	The relative position of field raw2fit has been changed from 1 to 6.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
32	The relative position of field sizeIdx has been changed from 3 to 1.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
33	The relative position of field symbolRows has been changed from 4 to 2.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
34	The relative position of field mappingCols has been changed from 7 to 5.	Applications will access incorrect memory when attempting to access this field.
35	The relative position of field mappingRows has been changed from 6 to 4.	Applications will access incorrect memory when attempting to access this field.
36	The relative position of field symbolCols has been changed from 5 to 3.	Applications will access incorrect memory when attempting to access this field.

dmtx.h
[+] struct DmtxDecode_struct (6)
[+] struct DmtxEncode_struct (1)
[+] struct DmtxImage_struct (2)
[+] struct DmtxRegion_struct (36)

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Problems with Data Types, Low Severity (3)

	Change	Effect
1	Size of this type has been changed from 92 bytes to 104 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 616 bytes to 692 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 448 bytes to 524 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

dmtx.h
[+] struct DmtxDecode_struct (1)
[+] struct DmtxEncode_struct (1)
[+] struct DmtxRegion_struct (1)

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Problems with Symbols, Low Severity (19)

	Change	Effect
1	Type of 2nd parameter q has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 1st parameter r has been changed from DmtxRay2* to DmtxRay2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter q has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 1st parameter r has been changed from DmtxRay2* to DmtxRay2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter r has been changed from DmtxRay2* to DmtxRay2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter p0 has been changed from DmtxRay2* to DmtxRay2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 3rd parameter p1 has been changed from DmtxRay2* to DmtxRay2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter v1 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 3rd parameter v2 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter v2 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter v1 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter v2 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter v1 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 2nd parameter v2 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter v has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter v has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter v1 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of 3rd parameter v2 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 2nd parameter v2 has been changed from DmtxVector2* to DmtxVector2 const*.	Replacement of parameter data type may indicate a change in its semantic meaning.

dmtx.h, libdmtx.so.0.0.0
[+] dmtxDistanceAlongRay2 ( DmtxRay2* r, DmtxVector2* q ) (2)
[+] dmtxDistanceFromRay2 ( DmtxRay2* r, DmtxVector2* q ) (2)
[+] dmtxPointAlongRay2 ( DmtxVector2* point, DmtxRay2* r, double t ) (1)
[+] dmtxRay2Intersect ( DmtxVector2* point, DmtxRay2* p0, DmtxRay2* p1 ) (2)
[+] dmtxVector2Add ( DmtxVector2* vOut, DmtxVector2* v1, DmtxVector2* v2 ) (2)
[+] dmtxVector2AddTo ( DmtxVector2* v1, DmtxVector2* v2 ) (1)
[+] dmtxVector2Cross ( DmtxVector2* v1, DmtxVector2* v2 ) (2)
[+] dmtxVector2Dot ( DmtxVector2* v1, DmtxVector2* v2 ) (2)
[+] dmtxVector2Mag ( DmtxVector2* v ) (1)
[+] dmtxVector2Scale ( DmtxVector2* vOut, DmtxVector2* v, double s ) (1)
[+] dmtxVector2Sub ( DmtxVector2* vOut, DmtxVector2* v1, DmtxVector2* v2 ) (2)
[+] dmtxVector2SubFrom ( DmtxVector2* v1, DmtxVector2* v2 ) (1)

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Problems with Constants, Low Severity (6)

	Change	Effect
1	The constant DMTX_REGION_DROPPED_1ST with value 5 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant DMTX_REGION_DROPPED_2ND with value 6 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The value of constant DMTX_REGION_DROPPED_SIZE has been changed from 9 to 8.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant DMTX_REGION_DROPPED_TOP has been changed from 8 to 6.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The constant DMTX_SYMBOL_RECT_AUTO with value -2 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant DMTX_SYMBOL_SQUARE_AUTO with value -1 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

dmtx.h
[+] DMTX_REGION_DROPPED_1ST
[+] DMTX_REGION_DROPPED_2ND
[+] DMTX_REGION_DROPPED_SIZE
[+] DMTX_REGION_DROPPED_TOP
[+] DMTX_SYMBOL_RECT_AUTO
[+] DMTX_SYMBOL_SQUARE_AUTO

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Other Changes in Constants (2)

	Change	Effect
1	The constant DMTX_BAD_OFFSET with value -1 has been added.	No effect.

	Change	Effect
1	The constant DMTX_REGION_DROPPED_FINDER with value 5 has been added.	No effect.

dmtx.h
[+] DMTX_BAD_OFFSET
[+] DMTX_REGION_DROPPED_FINDER

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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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