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|00000080| 2f 2a 20 0d 43 6f 6e 76 | 6f 6c 76 65 58 2f 59 2e |/* .Conv|olveX/Y.|
|00000090| 63 0d a9 20 31 39 38 39 | 2d 31 39 39 33 20 44 65 |c.. 1989|-1993 De|
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|00000e00| 20 4d 61 63 73 20 77 69 | 74 68 20 64 69 72 74 79 | Macs wi|th dirty|
|00000e10| 20 52 4f 4d 73 2e 0d 35 | 2f 32 33 2f 39 35 20 64 | ROMs..5|/23/95 d|
|00000e20| 67 70 20 41 70 70 6c 65 | 20 63 68 61 6e 67 65 64 |gp Apple| changed|
|00000e30| 20 74 68 65 20 70 72 6f | 74 6f 74 79 70 65 20 69 | the pro|totype i|
|00000e40| 6e 20 74 68 65 20 68 65 | 61 64 65 72 20 66 69 6c |n the he|ader fil|
|00000e50| 65 20 66 72 6f 6d 20 53 | 77 61 70 4d 4d 55 4d 6f |e from S|wapMMUMo|
|00000e60| 64 65 28 63 68 61 72 20 | 2a 29 20 74 6f 20 0d 09 |de(char |*) to ..|
|00000e70| 09 09 53 77 61 70 4d 4d | 55 4d 6f 64 65 28 73 69 |..SwapMM|UMode(si|
|00000e80| 67 6e 65 64 20 63 68 61 | 72 20 2a 29 2e 20 54 6f |gned cha|r *). To|
|00000e90| 20 72 65 74 61 69 6e 20 | 63 6f 6d 70 61 74 69 62 | retain |compatib|
|00000ea0| 69 6c 69 74 79 20 77 69 | 74 68 20 62 6f 74 68 20 |ility wi|th both |
|00000eb0| 6f 6c 64 20 61 6e 64 20 | 6e 65 77 0d 09 09 09 68 |old and |new....h|
|00000ec0| 65 61 64 65 72 73 2c 20 | 49 20 63 61 73 74 20 74 |eaders, |I cast t|
|00000ed0| 68 65 20 61 72 67 75 6d | 65 6e 74 20 28 76 6f 69 |he argum|ent (voi|
|00000ee0| 64 20 2a 29 2e 0d 2a 2f | 0d 23 69 6e 63 6c 75 64 |d *)..*/|.#includ|
|00000ef0| 65 20 22 56 69 64 65 6f | 54 6f 6f 6c 62 6f 78 2e |e "Video|Toolbox.|
|00000f00| 68 22 0d 23 69 66 6e 64 | 65 66 20 5f 5f 54 52 41 |h".#ifnd|ef __TRA|
|00000f10| 50 53 5f 5f 0d 09 23 69 | 6e 63 6c 75 64 65 20 3c |PS__..#i|nclude <|
|00000f20| 54 72 61 70 73 2e 68 3e | 09 09 2f 2f 20 5f 53 77 |Traps.h>|..// _Sw|
|00000f30| 61 70 4d 4d 55 4d 6f 64 | 65 0d 23 65 6e 64 69 66 |apMMUMod|e.#endif|
|00000f40| 0d 76 6f 69 64 20 43 6f | 6e 76 6f 6c 76 65 58 59 |.void Co|nvolveXY|
|00000f50| 28 64 6f 75 62 6c 65 20 | 66 5b 5d 2c 69 6e 74 20 |(double |f[],int |
|00000f60| 64 69 6d 2c 42 69 74 4d | 61 70 20 2a 73 72 63 42 |dim,BitM|ap *srcB|
|00000f70| 69 74 73 0d 09 2c 42 69 | 74 4d 61 70 20 2a 64 73 |its..,Bi|tMap *ds|
|00000f80| 74 42 69 74 73 2c 52 65 | 63 74 20 2a 73 72 63 52 |tBits,Re|ct *srcR|
|00000f90| 65 63 74 50 74 72 2c 52 | 65 63 74 20 2a 64 73 74 |ectPtr,R|ect *dst|
|00000fa0| 52 65 63 74 50 74 72 2c | 69 6e 74 20 63 6f 6e 76 |RectPtr,|int conv|
|00000fb0| 6f 6c 76 65 58 29 3b 0d | 23 64 65 66 69 6e 65 20 |olveX);.|#define |
|00000fc0| 44 49 41 47 4e 4f 53 54 | 49 43 53 20 30 09 09 2f |DIAGNOST|ICS 0../|
|00000fd0| 2f 20 74 72 75 65 20 6f | 72 20 66 61 6c 73 65 0d |/ true o|r false.|
|00000fe0| 23 64 65 66 69 6e 65 20 | 49 4d 50 52 4f 56 45 44 |#define |IMPROVED|
|00000ff0| 5f 52 4f 55 4e 44 49 4e | 47 20 31 09 2f 2f 20 74 |_ROUNDIN|G 1.// t|
|00001000| 72 75 65 20 6f 72 20 66 | 61 6c 73 65 0d 0d 76 6f |rue or f|alse..vo|
|00001010| 69 64 20 43 6f 6e 76 6f | 6c 76 65 58 28 64 6f 75 |id Convo|lveX(dou|
|00001020| 62 6c 65 20 66 5b 5d 2c | 69 6e 74 20 64 69 6d 2c |ble f[],|int dim,|
|00001030| 42 69 74 4d 61 70 20 2a | 73 72 63 42 69 74 73 0d |BitMap *|srcBits.|
|00001040| 09 2c 42 69 74 4d 61 70 | 20 2a 64 73 74 42 69 74 |.,BitMap| *dstBit|
|00001050| 73 2c 52 65 63 74 20 2a | 73 72 63 52 65 63 74 50 |s,Rect *|srcRectP|
|00001060| 74 72 2c 52 65 63 74 20 | 2a 64 73 74 52 65 63 74 |tr,Rect |*dstRect|
|00001070| 50 74 72 29 0d 7b 0d 09 | 43 6f 6e 76 6f 6c 76 65 |Ptr).{..|Convolve|
|00001080| 58 59 28 66 2c 64 69 6d | 2c 73 72 63 42 69 74 73 |XY(f,dim|,srcBits|
|00001090| 2c 64 73 74 42 69 74 73 | 2c 73 72 63 52 65 63 74 |,dstBits|,srcRect|
|000010a0| 50 74 72 2c 64 73 74 52 | 65 63 74 50 74 72 2c 31 |Ptr,dstR|ectPtr,1|
|000010b0| 29 3b 0d 7d 0d 0d 76 6f | 69 64 20 43 6f 6e 76 6f |);.}..vo|id Convo|
|000010c0| 6c 76 65 59 28 64 6f 75 | 62 6c 65 20 66 5b 5d 2c |lveY(dou|ble f[],|
|000010d0| 69 6e 74 20 64 69 6d 2c | 42 69 74 4d 61 70 20 2a |int dim,|BitMap *|
|000010e0| 73 72 63 42 69 74 73 0d | 09 2c 42 69 74 4d 61 70 |srcBits.|.,BitMap|
|000010f0| 20 2a 64 73 74 42 69 74 | 73 2c 52 65 63 74 20 2a | *dstBit|s,Rect *|
|00001100| 73 72 63 52 65 63 74 50 | 74 72 2c 52 65 63 74 20 |srcRectP|tr,Rect |
|00001110| 2a 64 73 74 52 65 63 74 | 50 74 72 29 0d 7b 0d 09 |*dstRect|Ptr).{..|
|00001120| 43 6f 6e 76 6f 6c 76 65 | 58 59 28 66 2c 64 69 6d |Convolve|XY(f,dim|
|00001130| 2c 73 72 63 42 69 74 73 | 2c 64 73 74 42 69 74 73 |,srcBits|,dstBits|
|00001140| 2c 73 72 63 52 65 63 74 | 50 74 72 2c 64 73 74 52 |,srcRect|Ptr,dstR|
|00001150| 65 63 74 50 74 72 2c 30 | 29 3b 0d 7d 0d 0d 76 6f |ectPtr,0|);.}..vo|
|00001160| 69 64 20 43 6f 6e 76 6f | 6c 76 65 58 59 28 64 6f |id Convo|lveXY(do|
|00001170| 75 62 6c 65 20 66 5b 5d | 2c 69 6e 74 20 64 69 6d |uble f[]|,int dim|
|00001180| 2c 42 69 74 4d 61 70 20 | 2a 73 72 63 42 69 74 73 |,BitMap |*srcBits|
|00001190| 0d 09 2c 42 69 74 4d 61 | 70 20 2a 64 73 74 42 69 |..,BitMa|p *dstBi|
|000011a0| 74 73 2c 52 65 63 74 20 | 2a 73 72 63 52 65 63 74 |ts,Rect |*srcRect|
|000011b0| 50 74 72 2c 52 65 63 74 | 20 2a 64 73 74 52 65 63 |Ptr,Rect| *dstRec|
|000011c0| 74 50 74 72 2c 69 6e 74 | 20 63 6f 6e 76 6f 6c 76 |tPtr,int| convolv|
|000011d0| 65 58 29 0d 7b 0d 09 52 | 65 63 74 20 6d 79 73 72 |eX).{..R|ect mysr|
|000011e0| 63 52 65 63 74 2c 6d 79 | 64 73 74 52 65 63 74 3b |cRect,my|dstRect;|
|000011f0| 0d 09 69 6e 74 20 64 73 | 74 4c 69 6e 65 73 2c 73 |..int ds|tLines,s|
|00001200| 72 63 4c 69 6e 65 73 2c | 64 73 74 4c 65 6e 67 74 |rcLines,|dstLengt|
|00001210| 68 2c 73 72 63 4c 65 6e | 67 74 68 3b 0d 09 69 6e |h,srcLen|gth;..in|
|00001220| 74 20 6c 69 6e 65 73 3b | 0d 09 75 6e 73 69 67 6e |t lines;|..unsign|
|00001230| 65 64 20 63 68 61 72 20 | 2a 64 73 74 50 74 72 3d |ed char |*dstPtr=|
|00001240| 4e 55 4c 4c 3b 0d 09 72 | 65 67 69 73 74 65 72 20 |NULL;..r|egister |
|00001250| 75 6e 73 69 67 6e 65 64 | 20 63 68 61 72 20 2a 73 |unsigned| char *s|
|00001260| 72 63 50 74 72 3d 4e 55 | 4c 4c 3b 0d 09 72 65 67 |rcPtr=NU|LL;..reg|
|00001270| 69 73 74 65 72 20 69 6e | 74 20 69 3b 0d 09 52 65 |ister in|t i;..Re|
|00001280| 63 74 20 64 73 74 52 65 | 63 74 2c 20 73 72 63 52 |ct dstRe|ct, srcR|
|00001290| 65 63 74 3b 0d 09 72 65 | 67 69 73 74 65 72 20 6c |ect;..re|gister l|
|000012a0| 6f 6e 67 20 74 3b 0d 09 | 72 65 67 69 73 74 65 72 |ong t;..|register|
|000012b0| 20 6c 6f 6e 67 20 2a 69 | 66 75 6e 2c 20 2a 66 50 | long *i|fun, *fP|
|000012c0| 74 72 3b 0d 09 6c 6f 6e | 67 20 69 66 75 6e 53 63 |tr;..lon|g ifunSc|
|000012d0| 61 6c 65 3b 0d 09 69 6e | 74 20 78 2c 79 2c 73 72 |ale;..in|t x,y,sr|
|000012e0| 63 78 2c 69 6d 69 6e 2c | 69 6d 61 78 3b 0d 09 64 |cx,imin,|imax;..d|
|000012f0| 6f 75 62 6c 65 20 74 6d | 61 78 3b 0d 09 50 69 78 |ouble tm|ax;..Pix|
|00001300| 4d 61 70 20 73 72 63 54 | 6d 70 2c 64 73 74 54 6d |Map srcT|mp,dstTm|
|00001310| 70 3b 09 2f 2a 20 6c 69 | 6e 65 20 62 75 66 66 65 |p;./* li|ne buffe|
|00001320| 72 73 20 2a 2f 0d 09 23 | 69 66 20 44 49 41 47 4e |rs */..#|if DIAGN|
|00001330| 4f 53 54 49 43 53 0d 09 | 09 47 44 48 61 6e 64 6c |OSTICS..|.GDHandl|
|00001340| 65 20 64 65 76 69 63 65 | 3d 4e 55 4c 4c 3b 0d 09 |e device|=NULL;..|
|00001350| 09 64 6f 75 62 6c 65 20 | 61 3b 0d 09 23 65 6e 64 |.double |a;..#end|
|00001360| 69 66 0d 09 73 68 6f 72 | 74 20 73 72 63 50 69 78 |if..shor|t srcPix|
|00001370| 65 6c 53 69 7a 65 2c 64 | 73 74 50 69 78 65 6c 53 |elSize,d|stPixelS|
|00001380| 69 7a 65 3b 0d 09 69 6e | 74 20 65 72 72 6f 72 3b |ize;..in|t error;|
|00001390| 0d 09 6c 6f 6e 67 20 76 | 61 6c 75 65 3b 0d 09 73 |..long v|alue;..s|
|000013a0| 69 67 6e 65 64 20 63 68 | 61 72 20 6d 6d 75 4d 6f |igned ch|ar mmuMo|
|000013b0| 64 65 3d 74 72 75 65 33 | 32 62 3b 0d 09 42 6f 6f |de=true3|2b;..Boo|
|000013c0| 6c 65 61 6e 20 63 61 6e | 33 32 3b 0d 09 0d 09 76 |lean can|32;....v|
|000013d0| 61 6c 75 65 3d 30 3b 0d | 09 65 72 72 6f 72 3d 47 |alue=0;.|.error=G|
|000013e0| 65 73 74 61 6c 74 28 67 | 65 73 74 61 6c 74 41 64 |estalt(g|estaltAd|
|000013f0| 64 72 65 73 73 69 6e 67 | 4d 6f 64 65 41 74 74 72 |dressing|ModeAttr|
|00001400| 2c 26 76 61 6c 75 65 29 | 3b 0d 09 63 61 6e 33 32 |,&value)|;..can32|
|00001410| 3d 54 72 61 70 41 76 61 | 69 6c 61 62 6c 65 28 5f |=TrapAva|ilable(_|
|00001420| 53 77 61 70 4d 4d 55 4d | 6f 64 65 29 3b 0d 09 52 |SwapMMUM|ode);..R|
|00001430| 65 63 74 54 6f 41 64 64 | 72 65 73 73 28 28 50 69 |ectToAdd|ress((Pi|
|00001440| 78 4d 61 70 20 2a 29 73 | 72 63 42 69 74 73 2c 73 |xMap *)s|rcBits,s|
|00001450| 72 63 52 65 63 74 50 74 | 72 2c 4e 55 4c 4c 2c 26 |rcRectPt|r,NULL,&|
|00001460| 73 72 63 50 69 78 65 6c | 53 69 7a 65 2c 4e 55 4c |srcPixel|Size,NUL|
|00001470| 4c 29 3b 0d 09 52 65 63 | 74 54 6f 41 64 64 72 65 |L);..Rec|tToAddre|
|00001480| 73 73 28 28 50 69 78 4d | 61 70 20 2a 29 64 73 74 |ss((PixM|ap *)dst|
|00001490| 42 69 74 73 2c 64 73 74 | 52 65 63 74 50 74 72 2c |Bits,dst|RectPtr,|
|000014a0| 4e 55 4c 4c 2c 26 64 73 | 74 50 69 78 65 6c 53 69 |NULL,&ds|tPixelSi|
|000014b0| 7a 65 2c 4e 55 4c 4c 29 | 3b 0d 09 69 66 75 6e 20 |ze,NULL)|;..ifun |
|000014c0| 3d 20 28 6c 6f 6e 67 20 | 2a 29 20 6d 61 6c 6c 6f |= (long |*) mallo|
|000014d0| 63 28 64 69 6d 2a 73 69 | 7a 65 6f 66 28 2a 69 66 |c(dim*si|zeof(*if|
|000014e0| 75 6e 29 29 3b 0d 09 69 | 66 28 69 66 75 6e 20 3d |un));..i|f(ifun =|
|000014f0| 3d 20 4e 55 4c 4c 29 20 | 7b 0d 09 09 50 72 69 6e |= NULL) |{...Prin|
|00001500| 74 66 45 78 69 74 28 22 | 43 6f 6e 76 6f 6c 76 65 |tfExit("|Convolve|
|00001510| 58 2f 59 3a 20 53 6f 72 | 72 79 2c 20 63 6f 75 6c |X/Y: Sor|ry, coul|
|00001520| 64 6e 27 74 20 61 6c 6c | 6f 63 61 74 65 20 65 6e |dn't all|ocate en|
|00001530| 6f 75 67 68 20 6d 65 6d | 6f 72 79 20 66 6f 72 20 |ough mem|ory for |
|00001540| 77 6f 72 6b 69 6e 67 20 | 61 72 72 61 79 5c 30 30 |working |array\00|
|00001550| 37 5c 6e 22 29 3b 0d 09 | 7d 0d 09 2f 2a 0d 09 57 |7\n");..|}../*..W|
|00001560| 65 20 77 69 6c 6c 20 73 | 75 6d 20 69 6e 20 61 20 |e will s|um in a |
|00001570| 6c 6f 6e 67 20 72 65 67 | 69 73 74 65 72 2e 0d 09 |long reg|ister...|
|00001580| 54 68 65 20 73 75 6d 20 | 6f 76 65 72 20 74 68 65 |The sum |over the|
|00001590| 20 70 6f 69 6e 74 20 73 | 70 72 65 61 64 20 66 75 | point s|pread fu|
|000015a0| 6e 63 74 69 6f 6e 20 66 | 5b 5d 20 77 69 6c 6c 20 |nction f|[] will |
|000015b0| 79 69 65 6c 64 20 61 74 | 20 6d 6f 73 74 20 74 6d |yield at| most tm|
|000015c0| 61 78 2c 20 64 65 66 69 | 6e 65 64 20 62 65 6c 6f |ax, defi|ned belo|
|000015d0| 77 2c 0d 09 73 6f 20 77 | 65 20 63 61 6e 20 73 61 |w,..so w|e can sa|
|000015e0| 66 65 6c 79 20 6d 75 6c | 74 69 70 6c 79 20 66 5b |fely mul|tiply f[|
|000015f0| 5d 20 62 79 20 4c 4f 4e | 47 5f 4d 41 58 2f 74 6d |] by LON|G_MAX/tm|
|00001600| 61 78 2c 20 77 69 74 68 | 6f 75 74 20 64 61 6e 67 |ax, with|out dang|
|00001610| 65 72 20 6f 66 20 6f 76 | 65 72 66 6c 6f 77 69 6e |er of ov|erflowin|
|00001620| 67 20 74 2e 0d 09 2a 2f | 0d 09 66 6f 72 20 28 74 |g t...*/|..for (t|
|00001630| 6d 61 78 3d 30 2e 30 2c | 20 69 3d 30 3b 69 3c 64 |max=0.0,| i=0;i<d|
|00001640| 69 6d 3b 69 2b 2b 29 20 | 74 6d 61 78 20 2b 3d 20 |im;i++) |tmax += |
|00001650| 66 61 62 73 28 66 5b 69 | 5d 29 3b 0d 09 74 6d 61 |fabs(f[i|]);..tma|
|00001660| 78 20 2a 3d 20 55 43 48 | 41 52 5f 4d 41 58 2b 31 |x *= UCH|AR_MAX+1|
|00001670| 3b 09 2f 2a 20 6d 61 78 | 69 6d 75 6d 20 76 61 6c |;./* max|imum val|
|00001680| 75 65 20 66 6f 72 20 61 | 20 70 69 78 65 6c 2c 20 |ue for a| pixel, |
|00001690| 32 35 35 2c 20 70 6c 75 | 73 20 31 20 66 6f 72 20 |255, plu|s 1 for |
|000016a0| 72 6f 75 6e 64 69 6e 67 | 20 2a 2f 0d 09 69 66 28 |rounding| */..if(|
|000016b0| 74 6d 61 78 3c 31 2e 30 | 29 74 6d 61 78 3d 31 2e |tmax<1.0|)tmax=1.|
|000016c0| 30 3b 0d 09 69 66 75 6e | 53 63 61 6c 65 20 3d 20 |0;..ifun|Scale = |
|000016d0| 4c 4f 4e 47 5f 4d 41 58 | 2f 74 6d 61 78 3b 0d 09 |LONG_MAX|/tmax;..|
|000016e0| 66 6f 72 20 28 69 3d 30 | 3b 69 3c 64 69 6d 3b 69 |for (i=0|;i<dim;i|
|000016f0| 2b 2b 29 20 69 66 75 6e | 5b 69 5d 20 3d 20 66 5b |++) ifun|[i] = f[|
|00001700| 69 5d 2a 69 66 75 6e 53 | 63 61 6c 65 3b 0d 09 0d |i]*ifunS|cale;...|
|00001710| 09 23 69 66 20 44 49 41 | 47 4e 4f 53 54 49 43 53 |.#if DIA|GNOSTICS|
|00001720| 0d 09 09 2f 2a 20 54 68 | 69 73 20 69 73 20 61 20 |.../* Th|is is a |
|00001730| 64 69 61 67 6e 6f 73 74 | 69 63 20 70 72 69 6e 74 |diagnost|ic print|
|00001740| 6f 75 74 20 74 6f 20 74 | 72 61 63 6b 20 64 6f 77 |out to t|rack dow|
|00001750| 6e 20 6f 76 65 72 66 6c | 6f 77 20 70 72 6f 62 6c |n overfl|ow probl|
|00001760| 65 6d 73 20 2a 2f 0d 09 | 09 74 20 3d 20 30 4c 3b |ems */..|.t = 0L;|
|00001770| 0d 09 09 61 20 3d 20 30 | 2e 30 3b 0d 09 09 66 6f |...a = 0|.0;...fo|
|00001780| 72 20 28 69 3d 30 3b 69 | 3c 64 69 6d 3b 69 2b 2b |r (i=0;i|<dim;i++|
|00001790| 29 20 7b 0d 09 09 09 74 | 20 2b 3d 20 6c 61 62 73 |) {....t| += labs|
|000017a0| 28 55 43 48 41 52 5f 4d | 41 58 2a 69 66 75 6e 5b |(UCHAR_M|AX*ifun[|
|000017b0| 69 5d 29 3b 0d 09 09 09 | 61 20 2b 3d 20 66 61 62 |i]);....|a += fab|
|000017c0| 73 28 66 5b 69 5d 29 3b | 0d 09 09 7d 0d 09 09 64 |s(f[i]);|...}...d|
|000017d0| 65 76 69 63 65 3d 47 65 | 74 47 44 65 76 69 63 65 |evice=Ge|tGDevice|
|000017e0| 28 29 3b 0d 09 09 53 65 | 74 47 44 65 76 69 63 65 |();...Se|tGDevice|
|000017f0| 28 47 65 74 4d 61 69 6e | 44 65 76 69 63 65 28 29 |(GetMain|Device()|
|00001800| 29 3b 0d 09 09 50 6d 46 | 6f 72 65 43 6f 6c 6f 72 |);...PmF|oreColor|
|00001810| 28 55 43 48 41 52 5f 4d | 41 58 29 3b 0d 09 09 50 |(UCHAR_M|AX);...P|
|00001820| 6d 42 61 63 6b 43 6f 6c | 6f 72 28 30 29 3b 0d 09 |mBackCol|or(0);..|
|00001830| 09 50 72 69 6e 74 66 45 | 78 69 74 28 22 61 3d 25 |.PrintfE|xit("a=%|
|00001840| 6c 66 2c 20 74 3d 25 6c | 78 2c 20 69 66 75 6e 53 |lf, t=%l|x, ifunS|
|00001850| 63 61 6c 65 3d 25 6c 78 | 2c 20 74 2f 69 66 75 6e |cale=%lx|, t/ifun|
|00001860| 53 63 61 6c 65 3d 25 6c | 66 5c 6e 22 2c 61 2c 74 |Scale=%l|f\n",a,t|
|00001870| 2c 69 66 75 6e 53 63 61 | 6c 65 2c 74 2a 31 2e 30 |,ifunSca|le,t*1.0|
|00001880| 2f 69 66 75 6e 53 63 61 | 6c 65 29 3b 0d 09 09 53 |/ifunSca|le);...S|
|00001890| 65 74 47 44 65 76 69 63 | 65 28 64 65 76 69 63 65 |etGDevic|e(device|
|000018a0| 29 3b 0d 09 23 65 6e 64 | 69 66 0d 09 0d 09 2f 2a |);..#end|if..../*|
|000018b0| 0d 09 55 6e 66 6f 72 74 | 75 6e 61 74 65 6c 79 20 |..Unfort|unately |
|000018c0| 43 6f 70 79 42 69 74 73 | 20 77 69 6c 6c 20 63 72 |CopyBits| will cr|
|000018d0| 61 73 68 20 69 66 20 74 | 68 65 20 6c 69 6e 65 20 |ash if t|he line |
|000018e0| 62 75 66 66 65 72 20 69 | 73 20 74 6f 6f 20 6c 61 |buffer i|s too la|
|000018f0| 72 67 65 2c 20 65 2e 67 | 2e 0d 09 36 34 30 20 70 |rge, e.g|...640 p|
|00001900| 69 78 65 6c 73 20 6c 6f | 6e 67 2e 20 57 65 20 63 |ixels lo|ng. We c|
|00001910| 61 6e 20 6d 69 6e 69 6d | 69 7a 65 20 74 68 69 73 |an minim|ize this|
|00001920| 20 70 72 6f 62 6c 65 6d | 20 62 79 20 72 65 64 75 | problem| by redu|
|00001930| 63 69 6e 67 20 74 68 65 | 20 73 69 7a 65 20 6f 66 |cing the| size of|
|00001940| 20 74 68 65 0d 09 73 72 | 63 52 65 63 74 20 74 6f | the..sr|cRect to|
|00001950| 20 62 65 20 6e 6f 20 6c | 61 72 67 65 72 20 74 68 | be no l|arger th|
|00001960| 61 6e 20 6e 65 63 65 73 | 73 61 72 79 20 28 69 2e |an neces|sary (i.|
|00001970| 65 2e 20 64 73 74 52 65 | 63 74 20 70 6c 75 73 20 |e. dstRe|ct plus |
|00001980| 64 69 6d 29 2e 0d 09 2a | 2f 0d 09 6d 79 73 72 63 |dim)...*|/..mysrc|
|00001990| 52 65 63 74 20 3d 20 2a | 73 72 63 52 65 63 74 50 |Rect = *|srcRectP|
|000019a0| 74 72 3b 0d 09 6d 79 64 | 73 74 52 65 63 74 20 3d |tr;..myd|stRect =|
|000019b0| 20 2a 64 73 74 52 65 63 | 74 50 74 72 3b 0d 09 69 | *dstRec|tPtr;..i|
|000019c0| 66 28 63 6f 6e 76 6f 6c | 76 65 58 29 7b 0d 09 09 |f(convol|veX){...|
|000019d0| 69 3d 6d 79 73 72 63 52 | 65 63 74 2e 72 69 67 68 |i=mysrcR|ect.righ|
|000019e0| 74 2d 6d 79 73 72 63 52 | 65 63 74 2e 6c 65 66 74 |t-mysrcR|ect.left|
|000019f0| 20 2d 20 28 64 69 6d 2b | 6d 79 64 73 74 52 65 63 | - (dim+|mydstRec|
|00001a00| 74 2e 72 69 67 68 74 2d | 6d 79 64 73 74 52 65 63 |t.right-|mydstRec|
|00001a10| 74 2e 6c 65 66 74 29 3b | 0d 09 09 69 66 28 69 3e |t.left);|...if(i>|
|00001a20| 30 29 49 6e 73 65 74 52 | 65 63 74 28 26 6d 79 73 |0)InsetR|ect(&mys|
|00001a30| 72 63 52 65 63 74 2c 69 | 2f 32 2c 30 29 3b 0d 09 |rcRect,i|/2,0);..|
|00001a40| 09 69 3d 6d 79 73 72 63 | 52 65 63 74 2e 62 6f 74 |.i=mysrc|Rect.bot|
|00001a50| 74 6f 6d 2d 6d 79 73 72 | 63 52 65 63 74 2e 74 6f |tom-mysr|cRect.to|
|00001a60| 70 20 2d 20 28 6d 79 64 | 73 74 52 65 63 74 2e 62 |p - (myd|stRect.b|
|00001a70| 6f 74 74 6f 6d 2d 6d 79 | 64 73 74 52 65 63 74 2e |ottom-my|dstRect.|
|00001a80| 74 6f 70 29 3b 0d 09 09 | 69 66 28 69 3e 30 29 49 |top);...|if(i>0)I|
|00001a90| 6e 73 65 74 52 65 63 74 | 28 26 6d 79 73 72 63 52 |nsetRect|(&mysrcR|
|00001aa0| 65 63 74 2c 30 2c 69 2f | 32 29 3b 0d 09 09 69 66 |ect,0,i/|2);...if|
|00001ab0| 28 69 3c 30 29 49 6e 73 | 65 74 52 65 63 74 28 26 |(i<0)Ins|etRect(&|
|00001ac0| 6d 79 64 73 74 52 65 63 | 74 2c 30 2c 2d 69 2f 32 |mydstRec|t,0,-i/2|
|00001ad0| 29 3b 0d 09 7d 65 6c 73 | 65 7b 0d 09 09 69 3d 6d |);..}els|e{...i=m|
|00001ae0| 79 73 72 63 52 65 63 74 | 2e 72 69 67 68 74 2d 6d |ysrcRect|.right-m|
|00001af0| 79 73 72 63 52 65 63 74 | 2e 6c 65 66 74 20 2d 20 |ysrcRect|.left - |
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|00001b10| 2d 6d 79 64 73 74 52 65 | 63 74 2e 6c 65 66 74 29 |-mydstRe|ct.left)|
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|00001ee0| 63 6d 70 43 6f 75 6e 74 | 3d 31 3b 0d 09 73 72 63 |cmpCount|=1;..src|
|00001ef0| 54 6d 70 2e 70 69 78 65 | 6c 53 69 7a 65 3d 38 3b |Tmp.pixe|lSize=8;|
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|00001fc0| 2a 20 61 20 76 65 72 74 | 69 63 61 6c 20 6c 69 6e |* a vert|ical lin|
|00001fd0| 65 20 62 75 66 66 65 72 | 20 2a 2f 0d 09 7d 0d 09 |e buffer| */..}..|
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|00001ff0| 3d 20 32 2a 28 28 28 73 | 72 63 54 6d 70 2e 62 6f |= 2*(((s|rcTmp.bo|
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|00002020| 72 63 54 6d 70 2e 70 69 | 78 65 6c 53 69 7a 65 2b |rcTmp.pi|xelSize+|
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|00002050| 29 20 6d 61 6c 6c 6f 63 | 28 73 72 63 54 6d 70 2e |) malloc|(srcTmp.|
|00002060| 72 6f 77 42 79 74 65 73 | 2a 28 73 72 63 54 6d 70 |rowBytes|*(srcTmp|
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|00002080| 72 63 54 6d 70 2e 62 6f | 75 6e 64 73 2e 74 6f 70 |rcTmp.bo|unds.top|
|00002090| 29 29 3b 0d 09 73 72 63 | 54 6d 70 2e 72 6f 77 42 |));..src|Tmp.rowB|
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|000020b0| 2f 2a 20 4d 61 72 6b 20 | 69 74 20 61 73 20 61 20 |/* Mark |it as a |
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|00002220| 2a 28 64 73 74 54 6d 70 | 2e 62 6f 75 6e 64 73 2e |*(dstTmp|.bounds.|
|00002230| 62 6f 74 74 6f 6d 2d 64 | 73 74 54 6d 70 2e 62 6f |bottom-d|stTmp.bo|
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|00002250| 54 6d 70 2e 72 6f 77 42 | 79 74 65 73 20 7c 3d 20 |Tmp.rowB|ytes |= |
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|00002380| 65 63 74 20 3d 20 73 72 | 63 54 6d 70 2e 62 6f 75 |ect = sr|cTmp.bou|
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|000023a0| 28 26 73 72 63 52 65 63 | 74 2c 73 72 63 52 65 63 |(&srcRec|t,srcRec|
|000023b0| 74 50 74 72 2d 3e 6c 65 | 66 74 2c 73 72 63 52 65 |tPtr->le|ft,srcRe|
|000023c0| 63 74 50 74 72 2d 3e 74 | 6f 70 29 3b 0d 09 64 73 |ctPtr->t|op);..ds|
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|000023f0| 63 74 28 26 64 73 74 52 | 65 63 74 2c 64 73 74 52 |ct(&dstR|ect,dstR|
|00002400| 65 63 74 50 74 72 2d 3e | 6c 65 66 74 2c 64 73 74 |ectPtr->|left,dst|
|00002410| 52 65 63 74 50 74 72 2d | 3e 74 6f 70 29 3b 0d 09 |RectPtr-|>top);..|
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|00002430| 09 4f 66 66 73 65 74 52 | 65 63 74 28 26 73 72 63 |.OffsetR|ect(&src|
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|00002770| 62 61 73 65 41 64 64 72 | 3b 0d 09 09 09 64 73 74 |baseAddr|;....dst|
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|00002790| 68 61 72 20 2a 29 20 73 | 72 63 54 6d 70 2e 62 61 |har *) s|rcTmp.ba|
|000027a0| 73 65 41 64 64 72 3b 0d | 09 09 09 66 6f 72 20 28 |seAddr;.|...for (|
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|000027d0| 74 50 74 72 2b 2b 20 3d | 20 2a 73 72 63 50 74 72 |tPtr++ =| *srcPtr|
|000027e0| 3b 0d 09 09 09 09 73 72 | 63 50 74 72 20 2b 3d 20 |;.....sr|cPtr += |
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|00002800| 74 50 74 72 3d 20 28 75 | 6e 73 69 67 6e 65 64 20 |tPtr= (u|nsigned |
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+--------+-------------------------+-------------------------+--------+--------+