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set error type when it happens

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This commit is contained in:
homm 2016-12-01 04:10:58 +03:00
parent 8d7355e733
commit c7161af924
1 changed files with 9 additions and 4 deletions
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13
libImaging/Resample.c
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@ -146,19 +146,24 @@ precompute_coeffs(int inSize, float in0, float in1, int outSize,
kmax = (int) ceil(support) * 2 + 1; kmax = (int) ceil(support) * 2 + 1;
// check for overflow // check for overflow
if (outSize > INT_MAX / (kmax * sizeof(double))) if (outSize > INT_MAX / (kmax * sizeof(double))) {
ImagingError_MemoryError();
return 0; return 0;
}
/* coefficient buffer */ /* coefficient buffer */
/* malloc check ok, overflow checked above */ /* malloc check ok, overflow checked above */
kk = malloc(outSize * kmax * sizeof(double)); kk = malloc(outSize * kmax * sizeof(double));
if ( ! kk) if ( ! kk) {
ImagingError_MemoryError();
return 0; return 0;
}
/* malloc check ok, kmax*sizeof(double) > 2*sizeof(int) */ /* malloc check ok, kmax*sizeof(double) > 2*sizeof(int) */
xbounds = malloc(outSize * 2 * sizeof(int)); xbounds = malloc(outSize * 2 * sizeof(int));
if ( ! xbounds) { if ( ! xbounds) {
free(kk); free(kk);
ImagingError_MemoryError();
return 0; return 0;
} }
@ -571,7 +576,7 @@ ImagingResampleInner(Imaging imIn, int xsize, int ysize,
kmax = precompute_coeffs(imIn->xsize, box[0], box[2], xsize, filterp, kmax = precompute_coeffs(imIn->xsize, box[0], box[2], xsize, filterp,
&xbounds, &kk); &xbounds, &kk);
if ( ! kmax) { if ( ! kmax) {
return (Imaging) ImagingError_MemoryError(); return NULL;
} }
imTemp = ImagingNew(imIn->mode, xsize, imIn->ysize); imTemp = ImagingNew(imIn->mode, xsize, imIn->ysize);
@ -592,7 +597,7 @@ ImagingResampleInner(Imaging imIn, int xsize, int ysize,
&xbounds, &kk); &xbounds, &kk);
if ( ! kmax) { if ( ! kmax) {
ImagingDelete(imTemp); ImagingDelete(imTemp);
return (Imaging) ImagingError_MemoryError(); return NULL;
} }
imOut = ImagingNew(imIn->mode, imIn->xsize, ysize); imOut = ImagingNew(imIn->mode, imIn->xsize, ysize);