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Ephoto: Fix dither to be correct and clean up filter code

This commit is contained in:
Stephen okra Houston 2016-06-23 10:27:21 -05:00
parent 84994e6a73
commit 20b4e80671
1 changed files with 152 additions and 122 deletions
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274
src/bin/ephoto_filters.c
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@ -645,10 +645,10 @@ _dither(void *data)
{
int index = y * w + x;
b = (ef->im_data[index]) & 0xff;
g = ((ef->im_data[index] >> 8) & 0xff);
r = ((ef->im_data[index] >> 16) & 0xff);
a = ((ef->im_data[index] >> 24) & 0xff);
b = (ef->im_data_new[index]) & 0xff;
g = ((ef->im_data_new[index] >> 8) & 0xff);
r = ((ef->im_data_new[index] >> 16) & 0xff);
a = ((ef->im_data_new[index] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
@ -670,10 +670,10 @@ _dither(void *data)
if ((x+1) < w)
{
index = y * w + x + 1;
b = (ef->im_data[index] & 0xff);
g = ((ef->im_data[index] >> 8) & 0xff);
r = ((ef->im_data[index] >> 16) & 0xff);
a = ((ef->im_data[index] >> 24) & 0xff);
b = (ef->im_data_new[index] & 0xff);
g = ((ef->im_data_new[index] >> 8) & 0xff);
r = ((ef->im_data_new[index] >> 16) & 0xff);
a = ((ef->im_data_new[index] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
@ -692,10 +692,10 @@ _dither(void *data)
if (x > 0 && (y+1) < h)
{
index = (y + 1) * w + (x - 1);
b = (ef->im_data[index] & 0xff);
g = ((ef->im_data[index] >> 8) & 0xff);
r = ((ef->im_data[index] >> 16) & 0xff);
a = ((ef->im_data[index] >> 24) & 0xff);
b = (ef->im_data_new[index] & 0xff);
g = ((ef->im_data_new[index] >> 8) & 0xff);
r = ((ef->im_data_new[index] >> 16) & 0xff);
a = ((ef->im_data_new[index] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
@ -714,10 +714,10 @@ _dither(void *data)
if ((y+1) < h)
{
index = (y + 1) * w + x;
b = (ef->im_data[index] & 0xff);
g = ((ef->im_data[index] >> 8) & 0xff);
r = ((ef->im_data[index] >> 16) & 0xff);
a = ((ef->im_data[index] >> 24) & 0xff);
b = (ef->im_data_new[index] & 0xff);
g = ((ef->im_data_new[index] >> 8) & 0xff);
r = ((ef->im_data_new[index] >> 16) & 0xff);
a = ((ef->im_data_new[index] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
@ -736,10 +736,10 @@ _dither(void *data)
if ((y+1) < h && (x+1) < w)
{
index = (y + 1) * w + (x + 1);
b = (ef->im_data[index] & 0xff);
g = ((ef->im_data[index] >> 8) & 0xff);
r = ((ef->im_data[index] >> 16) & 0xff);
a = ((ef->im_data[index] >> 24) & 0xff);
b = (ef->im_data_new[index] & 0xff);
g = ((ef->im_data_new[index] >> 8) & 0xff);
r = ((ef->im_data_new[index] >> 16) & 0xff);
a = ((ef->im_data_new[index] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
@ -755,12 +755,7 @@ _dither(void *data)
ef->im_data_new[index] = (a << 24) | (rr << 16) |
(gg << 8) | bb;
}
/*Extra incrementing the x and y values to get
* the desired checkerboard effect is likely a
* bad hack*/
x++;
}
y++;
passes++;
if (passes == 500)
{
@ -779,27 +774,31 @@ _grayscale(void *data)
{
Ephoto_Filter *ef = data;
int gray, i, r, g, b, a, passes = 0;
Evas_Coord w, h;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (i = ef->pos; i < (w * h); i++)
for (y = ef->pos; y < h; y++)
{
b = (int) ((ef->im_data[i]) & 0xff);
g = (int) ((ef->im_data[i] >> 8) & 0xff);
r = (int) ((ef->im_data[i] >> 16) & 0xff);
a = (int) ((ef->im_data[i] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
gray = (int) ((0.3 * r) + (0.59 * g) + (0.11 * b));
if (a >= 0 && a < 255)
gray = (gray * a) / 255;
ef->im_data_new[i] = (a << 24) | (gray << 16) | (gray << 8) | gray;
for (x = 0; x < w; x++)
{
i = y * w + x;
b = (int) ((ef->im_data[i]) & 0xff);
g = (int) ((ef->im_data[i] >> 8) & 0xff);
r = (int) ((ef->im_data[i] >> 16) & 0xff);
a = (int) ((ef->im_data[i] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
gray = (int) ((0.3 * r) + (0.59 * g) + (0.11 * b));
if (a >= 0 && a < 255)
gray = (gray * a) / 255;
ef->im_data_new[i] = (a << 24) | (gray << 16) | (gray << 8) | gray;
}
passes++;
if (passes == 500)
{
ef->pos = i++;
ef->pos = y++;
return EINA_TRUE;
}
}
@ -814,33 +813,38 @@ _sepia(void *data)
{
Ephoto_Filter *ef = data;
int i, r, rr, g, gg, b, bb, a, passes = 0;
Evas_Coord w, h;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (i = ef->pos; i < (w * h); i++)
for (y = ef->pos; y < h; y++)
{
b = (int) ((ef->im_data[i]) & 0xff);
g = (int) ((ef->im_data[i] >> 8) & 0xff);
r = (int) ((ef->im_data[i] >> 16) & 0xff);
a = (int) ((ef->im_data[i] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
rr = (int) ((r * .393) + (g * .769) + (b * .189));
rr = _normalize_color(rr);
gg = (int) ((r * .349) + (g * .686) + (b * .168));
gg = _normalize_color(gg);
bb = (int) ((r * .272) + (g * .534) + (b * .131));
bb = _normalize_color(bb);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[i] = (a << 24) | (rr << 16) | (gg << 8) | bb;
for (x = 0; x < w; x++)
{
i = y * w + x;
b = (int) ((ef->im_data[i]) & 0xff);
g = (int) ((ef->im_data[i] >> 8) & 0xff);
r = (int) ((ef->im_data[i] >> 16) & 0xff);
a = (int) ((ef->im_data[i] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
rr = (int) ((r * .393) + (g * .769) + (b * .189));
rr = _normalize_color(rr);
gg = (int) ((r * .349) + (g * .686) + (b * .168));
gg = _normalize_color(gg);
bb = (int) ((r * .272) + (g * .534) + (b * .131));
bb = _normalize_color(bb);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[i] = (a << 24) | (rr << 16) | (gg << 8) | bb;
}
passes++;
if (passes == 500)
{
ef->pos = i++;
ef->pos = y++;
return EINA_TRUE;
}
}
@ -856,34 +860,45 @@ _posterize(void *data)
Ephoto_Filter *ef = data;
int i, rr, gg, bb, a, passes = 0;
double fr, fg, fb, rad;
Evas_Coord w, h;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
rad = ef->drad;
for (i = ef->pos; i < (w * h); i++)
for (y = ef->pos; y < h; y++)
{
fb = ((ef->im_data[i]) & 0xff);
fg = ((ef->im_data[i] >> 8) & 0xff);
fr = ((ef->im_data[i] >> 16) & 0xff);
a = (int) ((ef->im_data[i] >> 24) & 0xff);
fr /= 255;
fg /= 255;
fb /= 255;
rr = 255 * rint((fr * rad)) / rad;
rr = _normalize_color(rr);
gg = 255 * rint((fg * rad)) / rad;
gg = _normalize_color(gg);
bb = 255 * rint((fb * rad)) / rad;
bb = _normalize_color(bb);
ef->im_data_new[i] = (a << 24) | (rr << 16) | (gg << 8) | bb;
for (x = 0; x < w; x++)
{
i = y * w + x;
fb = ((ef->im_data[i]) & 0xff);
fg = ((ef->im_data[i] >> 8) & 0xff);
fr = ((ef->im_data[i] >> 16) & 0xff);
a = ((ef->im_data[i] >> 24) & 0xff);
fb = _mul_color_alpha(fb, a);
fg = _mul_color_alpha(fg, a);
fr = _mul_color_alpha(fr, a);
fr /= 255;
fg /= 255;
fb /= 255;
rr = 255 * rint((fr * rad)) / rad;
rr = _normalize_color(rr);
gg = 255 * rint((fg * rad)) / rad;
gg = _normalize_color(gg);
bb = 255 * rint((fb * rad)) / rad;
bb = _normalize_color(bb);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[i] = (a << 24) | (rr << 16) | (gg << 8) | bb;
}
passes++;
if (passes == 500)
{
ef->pos = i++;
ef->pos = y++;
return EINA_TRUE;
}
}
_idler_finishing_cb(ef, EINA_FALSE);
return EINA_FALSE;
@ -895,34 +910,37 @@ _negative(void *data)
Ephoto_Filter *ef = data;
int i, r, g, b, rr, gg, bb, a;
int passes = 0;
Evas_Coord w, h;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (i = ef->pos; i < (w * h); i++)
for (y = ef->pos; y < h; y++)
{
b = (int) ((ef->im_data[i]) & 0xff);
g = (int) ((ef->im_data[i] >> 8) & 0xff);
r = (int) ((ef->im_data[i] >> 16) & 0xff);
a = (int) ((ef->im_data[i] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
rr = 255 - r;
gg = 255 - g;
bb = 255 - b;
rr = _normalize_color(rr);
gg = _normalize_color(gg);
bb = _normalize_color(bb);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[i] = (a << 24) | (rr << 16) | (gg << 8) | bb;
for (x = 0; x < w; x++)
{
i = y * w + x;
b = (int) ((ef->im_data[i]) & 0xff);
g = (int) ((ef->im_data[i] >> 8) & 0xff);
r = (int) ((ef->im_data[i] >> 16) & 0xff);
a = (int) ((ef->im_data[i] >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
rr = 255 - r;
gg = 255 - g;
bb = 255 - b;
rr = _normalize_color(rr);
gg = _normalize_color(gg);
bb = _normalize_color(bb);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[i] = (a << 24) | (rr << 16) | (gg << 8) | bb;
}
passes++;
if (passes == 500)
{
ef->pos = i++;
ef->pos = y++;
return EINA_TRUE;
}
}
@ -938,40 +956,48 @@ static Eina_Bool
_dodge(void *data)
{
Ephoto_Filter *ef = data;
double r, g, b, rr, gg, bb;
int i, rrr, ggg, bbb, passes = 0;;
Evas_Coord w, h;
double a, r, g, b, aa, rr, gg, bb;
int i, aaa, rrr, ggg, bbb, passes = 0;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (i = ef->pos; i < (w * h); i++)
for (y = ef->pos; y < h; y++)
{
b = ((ef->im_data_two[i]) & 0xff);
g = ((ef->im_data_two[i] >> 8) & 0xff);
r = ((ef->im_data_two[i] >> 16) & 0xff);
for (x = 0; x < w; x++)
{
i = y * w + x;
b = ((ef->im_data_two[i]) & 0xff);
g = ((ef->im_data_two[i] >> 8) & 0xff);
r = ((ef->im_data_two[i] >> 16) & 0xff);
a = ((ef->im_data_two[i] >> 24) & 0xff);
bb = ((ef->im_data[i]) & 0xff);
gg = ((ef->im_data[i] >> 8) & 0xff);
rr = ((ef->im_data[i] >> 16) & 0xff);
bb = ((ef->im_data[i]) & 0xff);
gg = ((ef->im_data[i] >> 8) & 0xff);
rr = ((ef->im_data[i] >> 16) & 0xff);
aa = ((ef->im_data[i] >> 24) & 0xff);
b *= 255;
g *= 255;
r *= 255;
b *= 255;
g *= 255;
r *= 255;
a *= 255;
bbb = rint(b / (255 - bb));
ggg = rint(g / (255 - gg));
rrr = rint(r / (255 - rr));
bbb = rint(b / (255 - bb));
ggg = rint(g / (255 - gg));
rrr = rint(r / (255 - rr));
aaa = rint(a / (255 - aa));
rrr = _normalize_color(rrr);
ggg = _normalize_color(ggg);
bbb = _normalize_color(bbb);
ef->im_data_new[i] = (255 << 24) | (rrr << 16) | (ggg << 8) | bbb;
rrr = _normalize_color(rrr);
ggg = _normalize_color(ggg);
bbb = _normalize_color(bbb);
aaa = _normalize_color(aaa);
ef->im_data_new[i] = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
}
passes++;
if (passes == 500)
{
ef->pos = i++;
ef->pos = y++;
return EINA_TRUE;
}
}
@ -1062,7 +1088,7 @@ _emboss(void *data)
p = ef->im_data_new + (y * w);
for (x = 0; x < w; x++)
{
int a = 0, rr = 0, gg = 0, bb = 0;
int aa = 0, rr = 0, gg = 0, bb = 0;
if (y > 0 && x > 0 && y < (h - 2) && x < (w - 2))
{
for (i = -1; i <= 1; i++)
@ -1078,14 +1104,16 @@ _emboss(void *data)
emboss[i+1][j+1];
rr += (int) ((pix >> 16) & 0xff) *
emboss[i+1][j+1];
aa += (int) ((pix >> 24) & 0xff) *
emboss[i+1][j+1];
}
}
}
aa = _normalize_color(aa);
bb = _normalize_color(bb);
gg = _normalize_color(gg);
rr = _normalize_color(rr);
a = (*p >> 24) & 0xff;
*p = (a << 24) | (rr << 16) | (gg << 8) | bb;
*p = (aa << 24) | (rr << 16) | (gg << 8) | bb;
p++;
}
passes++;
@ -1226,6 +1254,8 @@ ephoto_filter_dither(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_DITHER,
main, image);
ef->im_data_new = memcpy(ef->im_data_new, ef->im_data,
sizeof(unsigned int) * ef->w * ef->h);
ef->popup = _processing(main);
ef->idler = ecore_idler_add(_dither, ef);