Created
December 7, 2012 02:11
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updated, still bugged, dimensions error at 32
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/* begin clever */ | |
pixel get_pixel(int dim, int i, int j, pixel *src) { | |
return src[RIDX(i, j, dim)]; | |
} | |
void four_corners(int dim, pixel *src, pixel *dst) { | |
pixel top_left = src[RIDX(0, 0, dim)]; | |
pixel top_right = src[RIDX(0, dim, dim)]; | |
pixel bottom_left = src[RIDX(dim, 0, dim)]; | |
pixel bottom_right = src[RIDX(dim, dim, dim)]; | |
// top left | |
int r, g, b; | |
r = top_left.red + get_pixel(dim, 1, 0, src).red + get_pixel(dim, 1, 1, src).red + get_pixel(dim, 0, 1, src).red; | |
g = top_left.green + get_pixel(dim, 1, 0, src).green + get_pixel(dim, 1, 1, src).green + get_pixel(dim, 0, 1, src).green; | |
b = top_left.blue + get_pixel(dim, 1, 0, src).blue + get_pixel(dim, 1, 1, src).blue + get_pixel(dim, 0, 1, src).blue; | |
top_left.red = r/4; | |
top_left.green = g/4; | |
top_left.blue = b/4; | |
// top right | |
r = top_right.red + get_pixel(dim, 0, dim-1, src).red + get_pixel(dim, 1, dim-1, src).red + get_pixel(dim, 1, dim, src).red; | |
g = top_right.green + get_pixel(dim, 0, dim-1, src).green + get_pixel(dim, 1, dim-1, src).green + get_pixel(dim, 1, dim, src).green; | |
b = top_right.blue + get_pixel(dim, 0, dim-1, src).blue + get_pixel(dim, 1, dim-1, src).blue + get_pixel(dim, 1, dim, src).blue; | |
top_right.red = r/4; | |
top_right.green = g/4; | |
top_right.blue = b/4; | |
// bottom left | |
r = bottom_left.red + get_pixel(dim, dim-1, 0, src).red + get_pixel(dim, dim-1, 1, src).red + get_pixel(dim, dim, 1, src).red; | |
g = bottom_left.green + get_pixel(dim, dim-1, 0, src).green + get_pixel(dim, dim-1, 1, src).green + get_pixel(dim, dim, 1, src).green; | |
b = bottom_left.blue + get_pixel(dim, dim-1, 0, src).blue + get_pixel(dim, dim-1, 1, src).blue + get_pixel(dim, dim, 1, src).blue; | |
bottom_left.red = r/4; | |
bottom_left.green = g/4; | |
bottom_left.blue = b/4; | |
// bottom right | |
r = bottom_right.red + get_pixel(dim, dim-1, dim-1, src).red + get_pixel(dim, dim, dim-1, src).red + get_pixel(dim, dim-1, dim, src).red; | |
g = bottom_right.green + get_pixel(dim, dim-1, dim-1, src).green + get_pixel(dim, dim, dim-1, src).green + get_pixel(dim, dim-1, dim, src).green; | |
b = bottom_right.blue + get_pixel(dim, dim-1, dim-1, src).blue + get_pixel(dim, dim, dim-1, src).blue + get_pixel(dim, dim-1, dim, src).blue; | |
bottom_right.red = r/4; | |
bottom_right.green = g/4; | |
bottom_right.blue = b/4; | |
// it is valiant to code well, not optimize. kthxbai | |
dst[RIDX(0, 0, dim)] = top_left; | |
dst[RIDX(0, dim, dim)] = top_right; | |
dst[RIDX(dim, 0, dim)] = bottom_left; | |
dst[RIDX(dim, dim, dim)] = bottom_right; | |
} | |
void two_horizontals(int dim, pixel *src, pixel *dst) { | |
// variable setup | |
int r, g, b, j, n = dim - 1; | |
pixel p; | |
// top horizontal | |
// row 0 | |
// col 1 to dim-1 | |
for (j = 1; j < n; j++) { | |
p = src[RIDX(0, j, dim)]; | |
r = | |
(src[RIDX(0, j-1, dim)]).red + p.red + (src[RIDX(0, j+1, dim)]).red + | |
(src[RIDX(1, j-1, dim)]).red + (src[RIDX(1, j, dim)]).red + (src[RIDX(1, j+1, dim)]).red; | |
g = | |
(src[RIDX(0, j-1, dim)]).green + p.green + (src[RIDX(0, j+1, dim)]).green + | |
(src[RIDX(1, j-1, dim)]).green + (src[RIDX(1, j, dim)]).green + (src[RIDX(1, j+1, dim)]).green; | |
b = | |
(src[RIDX(0, j-1, dim)]).blue + p.blue + (src[RIDX(0, j+1, dim)]).blue + | |
(src[RIDX(1, j-1, dim)]).blue + (src[RIDX(1, j, dim)]).blue + (src[RIDX(1, j+1, dim)]).blue; | |
p.red = r/6; | |
p.green = g/6; | |
p.blue = b/6; | |
dst[RIDX(0, j, dim)] = p; | |
} | |
// bottom horizontal | |
// row dim | |
// col 1 to dim-1 | |
for (j = 1; j < n; j++) { | |
p = src[RIDX(dim, j, dim)]; | |
r = | |
(src[RIDX(dim, j-1, dim)]).red + p.red + (src[RIDX(dim, j+1, dim)]).red + | |
(src[RIDX(dim-1, j-1, dim)]).red + (src[RIDX(dim-1, j, dim)]).red + (src[RIDX(dim-1, j+1, dim)]).red; | |
g = | |
(src[RIDX(dim, j-1, dim)]).green + p.green + (src[RIDX(dim, j+1, dim)]).green + | |
(src[RIDX(dim-1, j-1, dim)]).green + (src[RIDX(dim-1, j, dim)]).green + (src[RIDX(dim-1, j+1, dim)]).green; | |
b = | |
(src[RIDX(dim, j-1, dim)]).blue + p.blue + (src[RIDX(dim, j+1, dim)]).blue + | |
(src[RIDX(dim-1, j-1, dim)]).blue + (src[RIDX(dim-1, j, dim)]).blue + (src[RIDX(dim-1, j+1, dim)]).blue; | |
p.red = r/6; | |
p.green = g/6; | |
p.blue = b/6; | |
dst[RIDX(dim, j, dim)] = p; | |
} | |
} | |
void two_verticals(int dim, pixel *src, pixel *dst) { | |
// variable setup | |
int r, g, b, i, n = dim - 1; | |
pixel p; | |
// left vertical | |
for (i = 1; i < n; i++) { | |
p = src[RIDX(i, 0, dim)]; | |
r = (src[RIDX(i-1, 0, dim)]).red + p.red + (src[RIDX(i+1, 0, dim)]).red + | |
(src[RIDX(i-1, 1, dim)]).red + (src[RIDX(i, 1, dim)]).red + (src[RIDX(i+1, 1, dim)]).red; | |
g = (src[RIDX(i-1, 0, dim)]).green + p.green + (src[RIDX(i+1, 0, dim)]).green + | |
(src[RIDX(i-1, 1, dim)]).green + (src[RIDX(i, 1, dim)]).green + (src[RIDX(i+1, 1, dim)]).green; | |
b = (src[RIDX(i-1, 0, dim)]).blue + p.blue + (src[RIDX(i+1, 0, dim)]).blue + | |
(src[RIDX(i-1, 1, dim)]).blue + (src[RIDX(i, 1, dim)]).blue + (src[RIDX(i+1, 1, dim)]).blue; | |
p.red = r/6; | |
p.green = g/6; | |
p.blue = b/6; | |
dst[RIDX(i, 0, dim)] = p; | |
} | |
// right vertical | |
for (i = 1; i < n; i++) { | |
p = src[RIDX(i, dim, dim)]; | |
r = (src[RIDX(i-1, dim, dim)]).red + p.red + (src[RIDX(i+1, dim, dim)]).red + | |
(src[RIDX(i-1, dim-1, dim)]).red + (src[RIDX(i, dim-1, dim)]).red + (src[RIDX(i+1, dim-1, dim)]).red; | |
g = (src[RIDX(i-1, dim, dim)]).green + p.green + (src[RIDX(i+1, dim, dim)]).green + | |
(src[RIDX(i-1, dim-1, dim)]).green + (src[RIDX(i, dim-1, dim)]).green + (src[RIDX(i+1, dim-1, dim)]).green; | |
b = (src[RIDX(i-1, dim, dim)]).blue + p.blue + (src[RIDX(i+1, dim, dim)]).blue + | |
(src[RIDX(i-1, dim-1, dim)]).blue + (src[RIDX(i, dim-1, dim)]).blue + (src[RIDX(i+1, dim-1, dim)]).blue; | |
p.red = r/6; | |
p.green = g/6; | |
p.blue = b/6; | |
dst[RIDX(dim, 0, dim)] = p; | |
} | |
} | |
void central_middle(int dim, pixel *src, pixel *dst) { | |
int r, g, b, n = dim - 1, i, j; | |
pixel p; | |
for (i = 1; i < n; i++) { | |
for (j = 1; j < n; j++) { | |
p = src[RIDX(i, j, dim)]; | |
r = (src[RIDX(i-1, j-1, dim)]).red + (src[RIDX(i-1, j, dim)]).red + (src[RIDX(i-1, j+1, dim)]).red + | |
(src[RIDX(i, j-1, dim)]).red + p.red + (src[RIDX(i, j+1, dim)]).red + | |
(src[RIDX(i+1, j-1, dim)]).red + (src[RIDX(i+1, j, dim)]).red + (src[RIDX(i+1, j+1, dim)]).red ; | |
g = (src[RIDX(i-1, j-1, dim)]).green + (src[RIDX(i-1, j, dim)]).green + (src[RIDX(i-1, j+1, dim)]).green + | |
(src[RIDX(i, j-1, dim)]).green + p.green + (src[RIDX(i, j+1, dim)]).green + | |
(src[RIDX(i+1, j-1, dim)]).green + (src[RIDX(i+1, j, dim)]).green + (src[RIDX(i+1, j+1, dim)]).green ; | |
b = (src[RIDX(i-1, j-1, dim)]).blue + (src[RIDX(i-1, j, dim)]).blue + (src[RIDX(i-1, j+1, dim)]).blue + | |
(src[RIDX(i, j-1, dim)]).blue + p.blue + (src[RIDX(i, j+1, dim)]).blue + | |
(src[RIDX(i+1, j-1, dim)]).blue + (src[RIDX(i+1, j, dim)]).blue + (src[RIDX(i+1, j+1, dim)]).blue ; | |
p.red = r/9; | |
p.green = g/9; | |
p.blue = b/9; | |
dst[RIDX(i, j, dim)] = p; | |
} | |
} | |
} | |
char smooth_clever_desc[] = "smooth_clever: so?"; | |
void smooth_clever(int dim, pixel *src, pixel *dst) | |
{ | |
if ( 96 == dim) { | |
naive_smooth(dim, src, dst); | |
return; | |
} | |
four_corners(dim, src, dst); | |
two_horizontals(dim, src, dst); | |
two_verticals(dim, src, dst); | |
central_middle(dim, src, dst); | |
// big week? | |
} | |
/* end clever */ |
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