unimore/hpc-2022-g3
unimore/hpc-2022-g3
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Add loop labels and change loop offset

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Co-authored-by: Fabio Zanichelli <274956@studenti.unimore.it>
Co-authored-by: Stefano Pigozzi <256895@studenti.unimore.it>
This commit is contained in:
Gattopandacorno 2022-12-19 10:32:00 +01:00
parent 00d632a25a
commit 8692e82290
1 changed files with 19 additions and 6 deletions
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25
hls/assignment/sobel/sobel.cpp
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@ -14,25 +14,38 @@ void sobel(uint8_t *__restrict__ out, uint8_t *__restrict__ in, const int width,
{-1, 0, 1} {-1, 0, 1}
}; };
for (int y = 1; y < height - 1; y++) esternoY:
for (int y = 0; y < height - 2; y++)
{ {
for (int x = 1; x < width - 1; x++) esternoX:
for (int x = 0; x < width - 2; x++)
{ {
int dx = 0; int dx = 0;
int dy = 0; int dy = 0;
internoY:
for (int k = 0; k < 3; k++) for (int k = 0; k < 3; k++)
{ {
const int inYOffset = (y + k) * width;
internoX:
for (int z = 0; z < 3; z++) for (int z = 0; z < 3; z++)
{ {
const int address = (y + k - 1) * width + x + z - 1; const int inXOffset = x + z;
dx += sobelFilter[k][z] * in[address]; const int inOffset = inYOffset + inXOffset;
dy += sobelFilter[z][k] * in[address]; const int inElement = in[inOffset];
dx += sobelFilter[k][z] * inElement;
dy += sobelFilter[z][k] * inElement;
} }
} }
out[y * width + x] = sqrt((float)((dx * dx) + (dy * dy))); const int outYOffset = (y + 1) * width;
const int outXOffset = (x + 1);
const int outOffset = outYOffset + outXOffset;
out[outOffset] = sqrt((float)((dx * dx) + (dy * dy)));
} }
} }
} }