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rename temp to imTransposed

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actualize comments
This commit is contained in:
homm 2014-10-30 14:48:15 +03:00
parent c99f05cd6e
commit 4007a78d53
1 changed files with 15 additions and 15 deletions
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30
libImaging/BoxBlur.c
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@ -169,7 +169,7 @@ ImagingLineBoxBlur8(UINT8 *lineOut, UINT8 *lineIn, int lastx, int radius, int ed
Imaging
HorizontalBoxBlur(Imaging imOut, Imaging imIn, float floatRadius)
ImagingHorizontalBoxBlur(Imaging imOut, Imaging imIn, float floatRadius)
{
ImagingSectionCookie cookie;
@ -260,28 +260,28 @@ ImagingBoxBlur(Imaging imOut, Imaging imIn, float radius, int n)
strcmp(imIn->mode, "LA") == 0))
return ImagingError_ModeError();
/* Create transposed temp image (imIn->ysize x imIn->xsize). */
Imaging temp = ImagingNew(imIn->mode, imIn->ysize, imIn->xsize);
if (!temp)
Imaging imTransposed = ImagingNew(imIn->mode, imIn->ysize, imIn->xsize);
if (!imTransposed)
return NULL;
/* Apply one-dimensional blur.
HorizontalBoxBlur transposes image at same time. */
HorizontalBoxBlur(imOut, imIn, radius);
/* Apply blur in one dimension.
Use imOut as a destination at first pass,
then use imOut as a source too. */
ImagingHorizontalBoxBlur(imOut, imIn, radius);
for (i = 1; i < n; i ++) {
HorizontalBoxBlur(imOut, imOut, radius);
ImagingHorizontalBoxBlur(imOut, imOut, radius);
}
ImagingTranspose(temp, imOut);
/* Transpose result for blur in another direction. */
ImagingTranspose(imTransposed, imOut);
/* Blur transposed result from previout step in same direction.
Reseult will be transposed again. We'll get original image
blurred in both directions. */
/* Reuse imTransposed as a source and destination there. */
for (i = 0; i < n; i ++) {
HorizontalBoxBlur(temp, temp, radius);
ImagingHorizontalBoxBlur(imTransposed, imTransposed, radius);
}
ImagingTranspose(imOut, temp);
/* Restore original orientation. */
ImagingTranspose(imOut, imTransposed);
ImagingDelete(temp);
ImagingDelete(imTransposed);
return imOut;
}