unimore/hpc-2022-g3
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Fix ring buffer dimensions

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Steffo 2022-12-19 12:16:55 +01:00 committed by GitHub
parent 6f1f6bc1b6
commit a229dfad5f
Signed by: github
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 5 deletions
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10
hls/assignment/sobel/sobel.cpp
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@ -17,8 +17,8 @@ void sobel(uint8_t *__restrict__ out, uint8_t *__restrict__ in)
}; };
// Carica le prime tre righe nel buffer // Carica le prime tre righe nel buffer
uint8_t inBuffer[3*HEIGHT]; uint8_t inBuffer[3*WIDTH];
memcpy(inBuffer, in, 3*HEIGHT*sizeof(uint8_t)); memcpy(inBuffer, in, 3*WIDTH*sizeof(uint8_t));
esternoY: esternoY:
for (int y = 0; y < HEIGHT - 2; y++) for (int y = 0; y < HEIGHT - 2; y++)
@ -37,14 +37,14 @@ void sobel(uint8_t *__restrict__ out, uint8_t *__restrict__ in)
{ {
#pragma HLS UNROLL #pragma HLS UNROLL
const int inYOffset = ((y + k) % 3) * WIDTH; const int inYOffset = (y + k) * WIDTH;
internoX: internoX:
for (int z = 0; z < 3; z++) for (int z = 0; z < 3; z++)
{ {
#pragma HLS UNROLL #pragma HLS UNROLL
const int inXOffset = x + z; const int inXOffset = (x + z) % 3;
const int inOffset = inYOffset + inXOffset; const int inOffset = inYOffset + inXOffset;
const int inElement = inBuffer[inOffset]; const int inElement = inBuffer[inOffset];
@ -61,6 +61,6 @@ void sobel(uint8_t *__restrict__ out, uint8_t *__restrict__ in)
out[outOffset] = sqrt((float)((dx * dx) + (dy * dy))); out[outOffset] = sqrt((float)((dx * dx) + (dy * dy)));
} }
memcpy(inBuffer, in + (y % 3) * HEIGHT, HEIGHT*sizeof(uint8_t)); memcpy(inBuffer, in + y * WIDTH, WIDTH*sizeof(uint8_t));
} }
} }