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fix x bounds

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This commit is contained in:
homm 2014-10-13 03:39:01 +04:00
parent 835db5d12f
commit 3906ff3c76
1 changed files with 6 additions and 6 deletions
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12
libImaging/BoxBlur.c
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@ -59,21 +59,21 @@ HorizontalBoxBlur32(Imaging im, Imaging imOut, float floatRadius)
/* Substract pixel from left ("0"). /* Substract pixel from left ("0").
Add pixels from radius. */ Add pixels from radius. */
for (x = 0; x <= radius; x++) { for (x = 0; x < radius + 1; x++) {
MOVE_ACC(acc, 0, x + radius); MOVE_ACC(acc, 0, x + radius);
ADD_FAR(bulk, acc, 0, x+radius+1); ADD_FAR(bulk, acc, 0, x+radius+1);
imOut->image32[x][y] = SAVE(bulk); imOut->image32[x][y] = SAVE(bulk);
} }
/* Substract previous pixel from "-radius". /* Substract previous pixel from "-radius".
Add pixels from radius. */ Add pixels from radius. */
for (x = radius + 1; x < im->xsize - radius; x++) { for (x = radius + 1; x < im->xsize - radius - 1; x++) {
MOVE_ACC(acc, x - radius - 1, x + radius); MOVE_ACC(acc, x - radius - 1, x + radius);
ADD_FAR(bulk, acc, x-radius-1, x+radius+1); ADD_FAR(bulk, acc, x-radius-1, x+radius+1);
imOut->image32[x][y] = SAVE(bulk); imOut->image32[x][y] = SAVE(bulk);
} }
/* Substract previous pixel from "-radius". /* Substract previous pixel from "-radius".
Add last pixel. */ Add last pixel. */
for (x = im->xsize - radius; x < im->xsize; x++) { for (x = im->xsize - radius - 1; x < im->xsize; x++) {
MOVE_ACC(acc, x - radius - 1, lastx); MOVE_ACC(acc, x - radius - 1, lastx);
ADD_FAR(bulk, acc, x-radius-1, lastx); ADD_FAR(bulk, acc, x-radius-1, lastx);
imOut->image32[x][y] = SAVE(bulk); imOut->image32[x][y] = SAVE(bulk);
@ -113,17 +113,17 @@ HorizontalBoxBlur8(Imaging im, Imaging imOut, float floatRadius)
acc += line[pix]; acc += line[pix];
} }
for (x = 0; x <= radius; x++) { for (x = 0; x < radius + 1; x++) {
acc = acc + line[x + radius] - line[0]; acc = acc + line[x + radius] - line[0];
bulk = (acc << 8) + (line[0] + line[x + radius + 1]) * rem; bulk = (acc << 8) + (line[0] + line[x + radius + 1]) * rem;
imOut->image8[x][y] = (UINT8)((bulk + w2) / w); imOut->image8[x][y] = (UINT8)((bulk + w2) / w);
} }
for (x = radius + 1; x < im->xsize - radius; x++) { for (x = radius + 1; x < im->xsize - radius - 1; x++) {
acc = acc + line[x + radius] - line[x - radius - 1]; acc = acc + line[x + radius] - line[x - radius - 1];
bulk = (acc << 8) + (line[x - radius - 1] + line[x + radius + 1]) * rem; bulk = (acc << 8) + (line[x - radius - 1] + line[x + radius + 1]) * rem;
imOut->image8[x][y] = (UINT8)((bulk + w2) / w); imOut->image8[x][y] = (UINT8)((bulk + w2) / w);
} }
for (x = im->xsize - radius; x < im->xsize; x++) { for (x = im->xsize - radius - 1; x < im->xsize; x++) {
acc = acc + line[lastx] - line[x - radius - 1]; acc = acc + line[lastx] - line[x - radius - 1];
bulk = (acc << 8) + (line[x - radius - 1] + line[lastx]) * rem; bulk = (acc << 8) + (line[x - radius - 1] + line[lastx]) * rem;
imOut->image8[x][y] = (UINT8)((bulk + w2) / w); imOut->image8[x][y] = (UINT8)((bulk + w2) / w);