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ephoto/src/bin/ephoto_filters.c

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#include "ephoto.h"
typedef enum _Ephoto_Image_Filter Ephoto_Image_Filter;
typedef struct _Ephoto_Filter Ephoto_Filter;
enum _Ephoto_Image_Filter
{
EPHOTO_IMAGE_FILTER_BLUR,
EPHOTO_IMAGE_FILTER_DITHER,
EPHOTO_IMAGE_FILTER_EMBOSS,
EPHOTO_IMAGE_FILTER_EQUALIZE,
EPHOTO_IMAGE_FILTER_GRAYSCALE,
EPHOTO_IMAGE_FILTER_INVERT,
EPHOTO_IMAGE_FILTER_PAINTING,
EPHOTO_IMAGE_FILTER_POSTERIZE,
EPHOTO_IMAGE_FILTER_SEPIA,
EPHOTO_IMAGE_FILTER_SHARPEN,
EPHOTO_IMAGE_FILTER_SKETCH,
EPHOTO_IMAGE_FILTER_SOBEL
};
struct _Ephoto_Filter
{
Ephoto_Image_Filter filter;
Evas_Object *main;
Evas_Object *image;
Evas_Object *popup;
Ecore_Thread *thread;;
Eina_List *queue;
Evas_Coord w;
Evas_Coord h;
int rad;
int qpos;
int qcount;
double drad;
unsigned int *hist;
unsigned int *cdf;
unsigned int *im_data;
unsigned int *im_data_new;
unsigned int *im_data_orig;
unsigned int *im_data_two;
Eina_Bool save_data;
};
static void _blur(void *data, Ecore_Thread *th EINA_UNUSED);
static void _sharpen(void *data, Ecore_Thread *th EINA_UNUSED);
static void _dither(void *data, Ecore_Thread *th EINA_UNUSED);
static void _grayscale(void *data, Ecore_Thread *th EINA_UNUSED);
static void _sepia(void *data, Ecore_Thread *th EINA_UNUSED);
static void _negative(void *data, Ecore_Thread *th EINA_UNUSED);
static void _posterize(void *data, Ecore_Thread *th EINA_UNUSED);
static void _dodge(void *data, Ecore_Thread *th EINA_UNUSED);
static void _sobel(void *data, Ecore_Thread *th EINA_UNUSED);
static void _emboss(void *data, Ecore_Thread *th EINA_UNUSED);
static void _histogram_eq(void *data, Ecore_Thread *th EINA_UNUSED);
static Ephoto_Filter *
_initialize_filter(Ephoto_Image_Filter filter,
Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = calloc(1, sizeof(Ephoto_Filter));
Evas_Coord w, h;
unsigned int *im_data;
im_data =
evas_object_image_data_get(image, EINA_FALSE);
evas_object_image_size_get(image, &w, &h);
ef->filter = filter;
ef->main = main;
ef->image = image;
ef->im_data = malloc(sizeof(unsigned int) * w * h);
ef->im_data = memcpy(ef->im_data, im_data, sizeof(unsigned int) * w * h);
ef->im_data_new = malloc(sizeof(unsigned int) * w * h);
ef->im_data_two = NULL;
ef->im_data_orig = NULL;
ef->rad = 0;
ef->drad = 0.0;
ef->w = w;
ef->h = h;
ef->qpos = 0;
ef->qcount = 0;
ef->queue = NULL;
ef->hist = NULL;
ef->cdf = NULL;
ef->save_data = EINA_FALSE;
return ef;
}
static int
_normalize_color(int color)
{
if (color < 0)
return 0;
else if (color > 255)
return 255;
else
return color;
}
static int
_mul_color_alpha(int color, int alpha)
{
if (alpha > 0 && alpha < 255)
return color * (255 / alpha);
else
return color;
}
static int
_demul_color_alpha(int color, int alpha)
{
if (alpha > 0 && alpha < 255)
return (color * alpha) / 255;
else
return color;
}
static void
_create_hist(Ephoto_Filter *ef)
{
int i;
for (i = 0; i < 256; i++)
ef->hist[i] = 0;
}
static Evas_Object *
_processing(Evas_Object *main)
{
Evas_Object *popup, *box, *label, *pb;
popup = elm_popup_add(main);
elm_object_part_text_set(popup, "title,text", _("Applying Filter"));
elm_popup_orient_set(popup, ELM_POPUP_ORIENT_CENTER);
box = elm_box_add(popup);
elm_box_horizontal_set(box, EINA_FALSE);
evas_object_size_hint_weight_set(box, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_size_hint_align_set(box, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(box);
label = elm_label_add(box);
elm_object_text_set(label,
_("Please wait while this filter is applied to your image."));
evas_object_size_hint_weight_set(label, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(label, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(box, label);
evas_object_show(label);
pb = elm_progressbar_add(box);
evas_object_size_hint_weight_set(pb, EVAS_HINT_EXPAND, 0.0);
evas_object_size_hint_align_set(pb, EVAS_HINT_FILL, 0.5);
elm_object_style_set(pb, "wheel");
elm_progressbar_pulse_set(pb, EINA_TRUE);
elm_box_pack_end(box, pb);
evas_object_show(pb);
elm_progressbar_pulse(pb, EINA_TRUE);
elm_object_part_content_set(popup, "default", box);
evas_object_show(popup);
return popup;
}
static void
_thread_finished_cb(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
if (ef->qcount == 0)
{
ephoto_single_browser_image_data_done(ef->main, ef->im_data_new,
ef->w, ef->h);
if (ef->popup)
{
evas_object_del(ef->popup);
}
if (ef->im_data)
free(ef->im_data);
if (ef->im_data_two)
free(ef->im_data_two);
if (ef->im_data_orig)
free(ef->im_data_orig);
free(ef);
}
else
{
if (ef->save_data)
{
if (ef->im_data_two)
{
free(ef->im_data_two);
ef->im_data_two = NULL;
}
ef->im_data_two = malloc(sizeof(unsigned int) * ef->w * ef->h);
ef->im_data_two = memcpy(ef->im_data_two, ef->im_data,
sizeof(unsigned int) * ef->w * ef->h);
ef->save_data = EINA_FALSE;
}
free(ef->im_data);
ef->im_data = NULL;
ef->im_data = malloc(sizeof(unsigned int) * ef->w * ef->h);
ef->im_data = memcpy(ef->im_data, ef->im_data_new,
sizeof(unsigned int) * ef->w * ef->h);
if (ef->hist)
free(ef->hist);
ef->hist = NULL;
if (ef->cdf)
free(ef->cdf);
ef->cdf = NULL;
ef->qpos++;
if (ef->qpos-1 < ef->qcount)
{
free(ef->im_data_new);
ef->im_data_new = NULL;
ef->im_data_new = malloc(sizeof(unsigned int) * ef->w * ef->h);
ef->thread = ecore_thread_run(eina_list_nth(ef->queue, ef->qpos-1),
_thread_finished_cb, NULL, ef);
}
else
{
ephoto_single_browser_image_data_done(ef->main, ef->im_data_new,
ef->w, ef->h);
if (ef->popup)
{
evas_object_del(ef->popup);
}
if (ef->im_data)
free(ef->im_data);
if (ef->im_data_two)
free(ef->im_data_two);
if (ef->im_data_orig)
free(ef->im_data_orig);
free(ef);
}
}
}
static void
_blur_vertical(Ephoto_Filter *ef, double rad)
{
Evas_Coord y, w, h;
int i, at, rt, gt, bt;
unsigned int *as, *rs, *gs, *bs;
double iarr;
w = ef->w;
h = ef->h;
as = malloc(sizeof(unsigned int) * w * h);
rs = malloc(sizeof(unsigned int) * w * h);
gs = malloc(sizeof(unsigned int) * w * h);
bs = malloc(sizeof(unsigned int) * w * h);
for (i = 0; i < w * h; i++)
{
bs[i] = ef->im_data[i] & 0xff;
gs[i] = (ef->im_data[i] >> 8) & 0xff;
rs[i] = (ef->im_data[i] >> 16) & 0xff;
as[i] = (ef->im_data[i] >> 24) & 0xff;
}
iarr = (double) 1 / (rad + rad + 1);
for (y = 0; y < h; y++)
{
int t, l, rr;
int fr, fg, fb, fa;
int lvr, lvg, lvb, lva;
int valr, valg, valb, vala;
t = y * w;
l = t;
rr = t + rad;
fb = bs[t];
fg = gs[t];
fr = rs[t];
fa = as[t];
lvb = bs[t + w - 1];
lvg = gs[t + w - 1];
lvr = rs[t + w - 1];
lva = as[t + w - 1];
valb = (rad + 1) * fb;
valg = (rad + 1) * fg;
valr = (rad + 1) * fr;
vala = (rad + 1) * fa;
for (i = 0; i < rad; i++)
{
valb += bs[t + i];
valg += gs[t + i];
valr += rs[t + i];
vala += as[t + i];
}
for (i = 0; i <= rad; i++)
{
int r = rr++;
valb += bs[r] - fb;
valg += gs[r] - fg;
valr += rs[r] - fr;
vala += as[r] - fa;
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data_new[t++] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
}
for (i = rad + 1; i < w - rad; i++)
{
int r = rr++;
int ll = l++;
valb += bs[r] - bs[ll];
valg += gs[r] - gs[ll];
valr += rs[r] - rs[ll];
vala += as[r] - as[ll];
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data_new[t++] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
}
for (i = w - rad; i < w; i++)
{
int ll = l++;
valb += lvb - bs[ll];
valg += lvg - gs[ll];
valr += lvr - rs[ll];
vala += lva - as[ll];
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data_new[t++] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
}
}
free(bs);
free(gs);
free(rs);
free(as);
}
static void
_blur_horizontal(Ephoto_Filter *ef, double rad)
{
Evas_Coord x, w, h;
int i, at, rt, gt, bt;
unsigned int *as, *rs, *gs, *bs;
double iarr;
w = ef->w;
h = ef->h;
as = malloc(sizeof(unsigned int) * w * h);
rs = malloc(sizeof(unsigned int) * w * h);
gs = malloc(sizeof(unsigned int) * w * h);
bs = malloc(sizeof(unsigned int) * w * h);
for (i = 0; i < w * h; i++)
{
bs[i] = ef->im_data_new[i] & 0xff;
gs[i] = (ef->im_data_new[i] >> 8) & 0xff;
rs[i] = (ef->im_data_new[i] >> 16) & 0xff;
as[i] = (ef->im_data_new[i] >> 24) & 0xff;
}
iarr = (double)1 / (rad + rad + 1);
for (x = 0; x < w; x++)
{
int t, l, rr;
int fr, fg, fb, fa;
int lvr, lvg, lvb, lva;
int valr, valg, valb, vala;
t = x;
l = t;
rr = t + rad * w;
fb = bs[t];
fg = gs[t];
fr = rs[t];
fa = as[t];
lvb = bs[t + w * (h - 1)];
lvg = gs[t + w * (h - 1)];
lvr = rs[t + w * (h - 1)];
lva = as[t + w * (h - 1)];
valb = (rad + 1) * fb;
valg = (rad + 1) * fg;
valr = (rad + 1) * fr;
vala = (rad + 1) * fa;
for (i = 0; i < rad; i++)
{
valb += bs[t + i * w];
valg += gs[t + i * w];
valr += rs[t + i * w];
vala += as[t + i * w];
}
for (i = 0; i <= rad; i++)
{
valb += bs[rr] - fb;
valg += gs[rr] - fg;
valr += rs[rr] - fr;
vala += as[rr] - fa;
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data[t] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
rr += w;
t += w;
}
for (i = rad + 1; i < h - rad; i++)
{
valb += bs[rr] - bs[l];
valg += gs[rr] - gs[l];
valr += rs[rr] - rs[l];
vala += as[rr] - as[l];;
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data[t] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
l += w;
rr += w;
t += w;
}
for (i = h - rad; i < h; i++)
{
valb += lvb - bs[l];
valg += lvg - gs[l];
valr += lvr - rs[l];
vala += lva - as[l];
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data[t] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
l += w;
t += w;
}
}
free(bs);
free(gs);
free(rs);
free(as);
}
static void
_blur(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
Evas_Coord w, h;
int wl, wu, m, i;
unsigned int sizes[3];
double ideal, rad;
w = ef->w;
h = ef->h;
rad = ef->w * .001 + ef->rad;
ideal = sqrt((12 * rad * rad / 3) + 1);
wl = floor(ideal);
if (wl % 2 == 0)
wl--;
wu = wl + 2;
ideal = (12 * rad * rad - 3 * wl * wl -
4 * 3 * wl - 3 * 3) / (-4 * wl - 4);
m = round(ideal);
for (i = 0; i < 3; i++)
{
if (i < m)
sizes[i] = wl;
else
sizes[i] = wu;
rad = (sizes[i] - 1) / 2;
ef->im_data_new = memcpy(ef->im_data_new, ef->im_data,
sizeof(unsigned int) * w * h);
_blur_vertical(ef, rad);
_blur_horizontal(ef, rad);
}
}
static void
_sharpen(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
unsigned int *p1, *p2, *p3;
int a, r, g, b;
int aa, rr, gg, bb;
int aaa, rrr, ggg, bbb;
Evas_Coord x, y, w, h;
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
p1 = ef->im_data + (y * w);
p2 = ef->im_data_orig + (y * w);
p3 = ef->im_data_new + (y * w);
for (x = 1; x < (w - 1); x++)
{
b = (int) (*p1 & 0xff);
g = (int) ((*p1 >> 8) & 0xff);
r = (int) ((*p1 >> 16) & 0xff);
a = (int) ((*p1 >> 24) & 0xff);
bb = (int) (*p2 & 0xff);
gg = (int) ((*p2 >> 8) & 0xff);
rr = (int) ((*p2 >> 16) & 0xff);
aa = (int) ((*p2 >> 24) & 0xff);
bbb = (int) ((2 * bb) - b);
ggg = (int) ((2 * gg) - g);
rrr = (int) ((2 * rr) - r);
aaa = (int) ((2 * aa) - a);
bbb = _normalize_color(bbb);
ggg = _normalize_color(ggg);
rrr = _normalize_color(rrr);
aaa = _normalize_color(aaa);
*p3 = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
p3++;
p2++;
p1++;
}
}
}
static void
_dither(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
Evas_Coord x, y, w, h;
int a, r, g, b;
int rr, gg, bb;
int errr, errg, errb;
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
for (x = 0; x < w; x++)
{
int index = y * w + x;
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);
bb = (b > 127) ? 255 : 0;
gg = (g > 127) ? 255 : 0;
rr = (r > 127) ? 255 : 0;
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[index] = (a << 24) | (rr << 16) |
(gg << 8) | bb;
errb = b - bb;
errg = g - gg;
errr = r - rr;
if ((x+1) < w)
{
index = y * w + x + 1;
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);
bb = b + ((7 * errb) >> 4);
gg = g + ((7 * errg) >> 4);
rr = r + ((7 * errr) >> 4);
bb = _normalize_color(bb);
gg = _normalize_color(gg);
rr = _normalize_color(rr);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[index] = (a << 24) | (rr << 16) |
(gg << 8) | bb;
}
if (x > 0 && (y+1) < h)
{
index = (y + 1) * w + (x - 1);
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);
bb = b + ((3 * errb) >> 4);
gg = g + ((3 * errg) >> 4);
rr = r + ((3 * errr) >> 4);
bb = _normalize_color(bb);
gg = _normalize_color(gg);
rr = _normalize_color(rr);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[index] = (a << 24) | (rr << 16) |
(gg << 8) | bb;
}
if ((y+1) < h)
{
index = (y + 1) * w + x;
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);
bb = b + ((5 * errb) >> 4);
gg = g + ((5 * errg) >> 4);
rr = r + ((5 * errr) >> 4);
bb = _normalize_color(bb);
gg = _normalize_color(gg);
rr = _normalize_color(rr);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[index] = (a << 24) | (rr << 16) |
(gg << 8) | bb;
}
if ((y+1) < h && (x+1) < w)
{
index = (y + 1) * w + (x + 1);
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);
bb = b + ((1 * errb) >> 4);
gg = g + ((1 * errg) >> 4);
rr = r + ((1 * errr) >> 4);
bb = _normalize_color(bb);
gg = _normalize_color(gg);
rr = _normalize_color(rr);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
ef->im_data_new[index] = (a << 24) | (rr << 16) |
(gg << 8) | bb;
}
}
}
}
static void
_grayscale(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
int gray, i, r, g, b, a;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
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;
}
}
}
static void
_sepia(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
int i, r, rr, g, gg, b, bb, a;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
for (x = 0; x < w; x++)
{
i = y * w + x;
b = ((ef->im_data[i]) & 0xff);
g = ((ef->im_data[i] >> 8) & 0xff);
r = ((ef->im_data[i] >> 16) & 0xff);
a = ((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 = ((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;
}
}
}
static void
_posterize(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
int i, rr, gg, bb, a;
double fr, fg, fb, rad;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
rad = ef->drad;
for (y = 0; y < h; y++)
{
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;
}
}
}
static void
_negative(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
int i, r, g, b, rr, gg, bb, a;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
for (x = 0; x < w; x++)
{
i = y * w + x;
b = ((ef->im_data[i]) & 0xff);
g = ((ef->im_data[i] >> 8) & 0xff);
r = ((ef->im_data[i] >> 16) & 0xff);
a = ((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;
}
}
if (ef->filter == EPHOTO_IMAGE_FILTER_SKETCH)
ef->save_data = EINA_TRUE;
}
static void
_dodge(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
double a, r, g, b, aa, rr, gg, bb;
int i, aaa, rrr, ggg, bbb;
Evas_Coord w, h, x, y;
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
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);
aa = ((ef->im_data[i] >> 24) & 0xff);
b *= 255;
g *= 255;
r *= 255;
a *= 255;
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);
aaa = _normalize_color(aaa);
ef->im_data_new[i] = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
}
}
}
static void
_sobel(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
Evas_Coord x, y, w, h;
int i, j;
unsigned int *p;
float sobx[3][3] = {{-1, 0, 1},
{-2, 0, 2},
{-1, 0, 1}};
float soby[3][3] = {{-1, -2, -1},
{0, 0, 0},
{1, 2, 1}};
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
p = ef->im_data_new + (y * w);
for (x = 0; x < w; x++)
{
int pval = 0, a, r, g, b;
double hpval = 0.0, vpval = 0.0;
if (y > 0 && x > 0 && y < (h - 2) && x < (w - 2))
{
for (i = -1; i <= 1; i++)
{
for (j = -1; j <= 1; j++)
{
int index, pix;
index = (y + i) * w + x + j;
pix = ef->im_data[index];
hpval += pix * sobx[i+1][j+1];
vpval += pix * soby[i+1][j+1];
}
}
}
pval = abs(hpval) + abs(vpval);
*p = pval;
b = ((*p) & 0xff);
g = ((*p >> 8) & 0xff);
r = ((*p >> 16) & 0xff);
a = ((*p >> 24) & 0xff);
b = _normalize_color(b);
g = _normalize_color(g);
r = _normalize_color(r);
a = _normalize_color(a);
*p = (a << 24) | (r << 16) | (g << 8) | b;
p++;
}
}
}
static void
_emboss(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
Evas_Coord x, y, w, h;
int i, j;
unsigned int *p;
float emboss[3][3] = {{-2, -1, 0},
{-1, 1, 1},
{0, 1, 2}};
w = ef->w;
h = ef->h;
for (y = 0; y < h; y++)
{
p = ef->im_data_new + (y * w);
for (x = 0; x < w; x++)
{
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++)
{
for (j = -1; j <= 1; j++)
{
int index, pix;
index = (y + i) * w + x + j;
pix = ef->im_data[index];
bb += (int) ((pix) & 0xff) *
emboss[i+1][j+1];
gg += (int) ((pix >> 8) & 0xff) *
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);
*p = (aa << 24) | (rr << 16) | (gg << 8) | bb;
p++;
}
}
}
static void
_histogram_eq(void *data, Ecore_Thread *th EINA_UNUSED)
{
Ephoto_Filter *ef = data;
Evas_Coord x, y, w, h;
unsigned int *p1, *p2;
int i, a, r, g, b, bb, gg, rr, norm;
int total;
double sum;
float hh, s, v, nv;
w = ef->w;
h = ef->h;
total = ef->w * ef->h;
for (y = 0; y < h; y++)
{
p1 = ef->im_data + (y * w);
for (x = 0; x < w; x++)
{
b = ((*p1) & 0xff);
g = ((*p1 >> 8) & 0xff);
r = ((*p1 >> 16) & 0xff);
a = ((*p1 >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
evas_color_rgb_to_hsv(r, g, b, &hh, &s, &v);
norm = (int) round((double) v * (double) 255);
ef->hist[norm] += 1;
p1++;
}
}
sum = 0;
for (i = 0; i < 256; i++)
{
sum += ((double) ef->hist[i] /
(double) total);
ef->cdf[i] = (int) round(sum * 255);
}
for (y = 0; y < h; y++)
{
p1 = ef->im_data + (y * w);
p2 = ef->im_data_new + (y * w);
for (x = 0; x < w; x++)
{
b = ((*p1) & 0xff);
g = ((*p1 >> 8) & 0xff);
r = ((*p1 >> 16) & 0xff);
a = ((*p1 >> 24) & 0xff);
b = _mul_color_alpha(b, a);
g = _mul_color_alpha(g, a);
r = _mul_color_alpha(r, a);
evas_color_rgb_to_hsv(r, g, b, &hh, &s, &v);
norm = (int) round((double) v * (double) 255);
nv = (float) ef->cdf[norm] / (float) 255;
evas_color_hsv_to_rgb(hh, s, nv, &rr, &gg, &bb);
bb = _normalize_color(bb);
gg = _normalize_color(gg);
rr = _normalize_color(rr);
bb = _demul_color_alpha(bb, a);
gg = _demul_color_alpha(gg, a);
rr = _demul_color_alpha(rr, a);
*p2 = (a << 24) | (rr << 16) | (gg << 8) | bb;
p2++;
p1++;
}
}
}
void
ephoto_filter_blur(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_BLUR,
main, image);
ef->rad = 9;
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_blur, _thread_finished_cb,
NULL, ef);
}
void
ephoto_filter_sharpen(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_SHARPEN,
main, image);
ef->im_data_orig = malloc(sizeof(unsigned int) * ef->w * ef->h);
ef->im_data_orig = memcpy(ef->im_data_orig, ef->im_data,
sizeof(unsigned int) * ef->w * ef->h);
ef->rad = 9;
ef->qcount = 1;
ef->qpos = 0;
ef->queue = eina_list_append(ef->queue, _sharpen);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_blur, _thread_finished_cb,
NULL, ef);
}
void
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->thread = ecore_thread_run(_dither, _thread_finished_cb,
NULL, ef);
}
void
ephoto_filter_black_and_white(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_GRAYSCALE,
main, image);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_grayscale, _thread_finished_cb,
NULL, ef);
}
void
ephoto_filter_old_photo(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_SEPIA,
main, image);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_sepia, _thread_finished_cb,
NULL, ef);
}
void
ephoto_filter_posterize(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_POSTERIZE,
main, image);
ef->drad = 2.0;
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_posterize, _thread_finished_cb,
NULL, ef);
}
void
ephoto_filter_painting(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_PAINTING,
main, image);
ef->rad = 5;
ef->drad = 5.0;
ef->qpos = 0;
ef->qcount = 1;
ef->queue = eina_list_append(ef->queue, _posterize);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_blur, _thread_finished_cb,
NULL, ef);
}
void ephoto_filter_invert(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_INVERT,
main, image);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_negative, _thread_finished_cb,
NULL, ef);
}
void ephoto_filter_sketch(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_SKETCH,
main, image);
ef->rad = 4;
ef->qpos = 0;
ef->qcount = 3;
ef->queue = eina_list_append(ef->queue, _negative);
ef->queue = eina_list_append(ef->queue, _blur);
ef->queue = eina_list_append(ef->queue, _dodge);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_grayscale, _thread_finished_cb,
NULL, ef);
}
void ephoto_filter_edge(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_SOBEL,
main, image);
ef->rad = 3;
ef->qpos = 0;
ef->qcount = 2;
ef->queue = eina_list_append(ef->queue, _grayscale);
ef->queue = eina_list_append(ef->queue, _sobel);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_blur, _thread_finished_cb,
NULL, ef);
}
void ephoto_filter_emboss(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_EMBOSS,
main, image);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_emboss, _thread_finished_cb,
NULL, ef);
}
void
ephoto_filter_histogram_eq(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_EQUALIZE,
main, image);
ef->hist = malloc(sizeof(unsigned int) * 256);
ef->cdf = malloc(sizeof(unsigned int) * 256);
_create_hist(ef);
ef->popup = _processing(main);
ef->thread = ecore_thread_run(_histogram_eq, _thread_finished_cb,
NULL, ef);
}