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gaudieffects: factorize transform code of dilate

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This commit is contained in:
Luis de Bethencourt 2015-03-19 13:58:21 +00:00
parent 82b73713cb
commit 78ebbb4fd7
1 changed files with 53 additions and 110 deletions
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163
gst/gaudieffects/gstdilate.c
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@ -305,120 +305,63 @@ transform (guint32 * src, guint32 * dest, gint video_area, gint width,
guint32 *down;
guint32 *right;
if (erode) {
while (src != src_end) {
guint32 *src_line_start = src;
guint32 *src_line_end = src + width;
while (src != src_end) {
guint32 *src_line_start = src;
guint32 *src_line_end = src + width;
while (src != src_line_end) {
up = src - width;
if (up < src) {
up = src;
}
left = src - 1;
if (left < src_line_start) {
left = src;
}
down = src + width;
if (down >= src_end) {
down = src;
}
right = src + 1;
if (right >= src_line_end) {
right = src;
}
*dest = *src;
out_luminance = get_luminance (*src);
down_luminance = get_luminance (*down);
if (down_luminance < out_luminance) {
*dest = *down;
out_luminance = down_luminance;
}
right_luminance = get_luminance (*right);
if (right_luminance < out_luminance) {
*dest = *right;
out_luminance = right_luminance;
}
up_luminance = get_luminance (*up);
if (up_luminance < out_luminance) {
*dest = *up;
out_luminance = up_luminance;
}
left_luminance = get_luminance (*left);
if (left_luminance < out_luminance) {
*dest = *left;
}
src += 1;
dest += 1;
while (src != src_line_end) {
up = src - width;
if (up < src) {
up = src;
}
}
} else {
while (src != src_end) {
guint32 *src_line_start = src;
guint32 *src_line_end = src + width;
while (src != src_line_end) {
up = src - width;
if (up < src) {
up = src;
}
left = src - 1;
if (left < src_line_start) {
left = src;
}
down = src + width;
if (down >= src_end) {
down = src;
}
right = src + 1;
if (right >= src_line_end) {
right = src;
}
*dest = *src;
out_luminance = get_luminance (*src);
down_luminance = get_luminance (*down);
if (down_luminance > out_luminance) {
*dest = *down;
out_luminance = down_luminance;
}
right_luminance = get_luminance (*right);
if (right_luminance > out_luminance) {
*dest = *right;
out_luminance = right_luminance;
}
up_luminance = get_luminance (*up);
if (up_luminance > out_luminance) {
*dest = *up;
out_luminance = up_luminance;
}
left_luminance = get_luminance (*left);
if (left_luminance > out_luminance) {
*dest = *left;
}
src += 1;
dest += 1;
left = src - 1;
if (left < src_line_start) {
left = src;
}
down = src + width;
if (down >= src_end) {
down = src;
}
right = src + 1;
if (right >= src_line_end) {
right = src;
}
*dest = *src;
out_luminance = get_luminance (*src);
down_luminance = get_luminance (*down);
if ((erode && down_luminance < out_luminance) ||
(!erode && down_luminance > out_luminance)) {
*dest = *down;
out_luminance = down_luminance;
}
right_luminance = get_luminance (*right);
if ((erode && right_luminance < out_luminance) ||
(!erode && right_luminance > out_luminance)) {
*dest = *right;
out_luminance = right_luminance;
}
up_luminance = get_luminance (*up);
if ((erode && up_luminance < out_luminance) ||
(!erode && up_luminance > out_luminance)) {
*dest = *up;
out_luminance = up_luminance;
}
left_luminance = get_luminance (*left);
if ((erode && left_luminance < out_luminance) ||
(!erode && left_luminance > out_luminance)) {
*dest = *left;
}
src += 1;
dest += 1;
}
}
}