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Merge pull request #6418 from hmaarrfk/parallel_matrix_convert

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Hugo van Kemenade 2022-10-25 21:11:22 +03:00 committed by GitHub
commit 9bbf56b368
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1 changed files with 5 additions and 0 deletions
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5
src/libImaging/Matrix.c
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@ -21,6 +21,7 @@ Imaging
ImagingConvertMatrix(Imaging im, const char *mode, float m[]) {
Imaging imOut;
int x, y;
ImagingSectionCookie cookie;
/* Assume there's enough data in the buffer */
if (!im) {
@ -33,6 +34,7 @@ ImagingConvertMatrix(Imaging im, const char *mode, float m[]) {
return NULL;
}
ImagingSectionEnter(&cookie);
for (y = 0; y < im->ysize; y++) {
UINT8 *in = (UINT8 *)im->image[y];
UINT8 *out = (UINT8 *)imOut->image[y];
@ -43,6 +45,7 @@ ImagingConvertMatrix(Imaging im, const char *mode, float m[]) {
in += 4;
}
}
ImagingSectionLeave(&cookie);
} else if (strlen(mode) == 3 && im->bands == 3) {
imOut = ImagingNewDirty(mode, im->xsize, im->ysize);
@ -54,6 +57,7 @@ ImagingConvertMatrix(Imaging im, const char *mode, float m[]) {
UINT8 *in = (UINT8 *)im->image[y];
UINT8 *out = (UINT8 *)imOut->image[y];
ImagingSectionEnter(&cookie);
for (x = 0; x < im->xsize; x++) {
float v0 = m[0] * in[0] + m[1] * in[1] + m[2] * in[2] + m[3] + 0.5;
float v1 = m[4] * in[0] + m[5] * in[1] + m[6] * in[2] + m[7] + 0.5;
@ -64,6 +68,7 @@ ImagingConvertMatrix(Imaging im, const char *mode, float m[]) {
in += 4;
out += 4;
}
ImagingSectionLeave(&cookie);
}
} else {
return (Imaging)ImagingError_ModeError();