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Traverse array of pixels with unsigned char * #1

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Traverse array of pixels with unsigned char * #1

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12 changes: 8 additions & 4 deletions main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7,11 +7,15 @@ void save_ppm_file(int pixels[], int pixels_size, int stride)
FILE *out_put = fopen("output.ppm", "w");
fprintf(out_put, "P3\n%i %i 255\n", w, h);
int r, g, b;

unsigned char * pix = (unsigned char*) pixels;

for (int i = 0; i < pixels_size; i++) {
r = pixels[i] << (8 * 2) & 0xFF;
g = pixels[i] << (8 * 1) & 0xFF;
b = pixels[i] << (8 * 0) & 0xFF;
fprintf(out_put, "%d %d %d ", r, g, b);
r = pix[0];
g = pix[1];
b = pix[2];
fprintf(out_put, "%u %u %u ", r, g, b);
pix+=4;
}
}

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