Image* NewImageFromMask(const DocumentLocation& location)
{
const Sprite* srcSprite = location.sprite();
const Mask* srcMask = location.document()->getMask();
const Image* srcBitmap = srcMask->getBitmap();
const gfx::Rect& srcBounds = srcMask->getBounds();
const uint8_t* address;
int x, y, u, v, getx, gety;
Image *dst;
const Image *src = location.image(&x, &y);
div_t d;
ASSERT(srcSprite);
ASSERT(srcMask);
ASSERT(srcBitmap);
ASSERT(src);
dst = Image::create(srcSprite->getPixelFormat(), srcBounds.w, srcBounds.h);
if (!dst)
return NULL;
// Clear the new image
image_clear(dst, 0);
// Copy the masked zones
for (v=0; v<srcBounds.h; v++) {
d = div(0, 8);
address = ((const uint8_t**)srcBitmap->line)[v]+d.quot;
for (u=0; u<srcBounds.w; u++) {
if ((*address & (1<<d.rem))) {
getx = u+srcBounds.x-x;
gety = v+srcBounds.y-y;
if ((getx >= 0) && (getx < src->w) &&
(gety >= 0) && (gety < src->h))
dst->putpixel(u, v, src->getpixel(getx, gety));
}
_image_bitmap_next_bit(d, address);
}
}
return dst;
}
Image* NewImageFromMask(const Document* srcDocument)
{
const Sprite* srcSprite = srcDocument->getSprite();
const Mask* srcMask = srcDocument->getMask();
const uint8_t* address;
int x, y, u, v, getx, gety;
Image *dst;
const Image *src = srcSprite->getCurrentImage(&x, &y);
div_t d;
ASSERT(srcSprite);
ASSERT(srcMask);
ASSERT(srcMask->bitmap);
ASSERT(src);
dst = image_new(srcSprite->getImgType(), srcMask->w, srcMask->h);
if (!dst)
return NULL;
// Clear the new image
image_clear(dst, 0);
// Copy the masked zones
for (v=0; v<srcMask->h; v++) {
d = div(0, 8);
address = ((const uint8_t**)srcMask->bitmap->line)[v]+d.quot;
for (u=0; u<srcMask->w; u++) {
if ((*address & (1<<d.rem))) {
getx = u+srcMask->x-x;
gety = v+srcMask->y-y;
if ((getx >= 0) && (getx < src->w) &&
(gety >= 0) && (gety < src->h))
dst->putpixel(u, v, src->getpixel(getx, gety));
}
_image_bitmap_next_bit(d, address);
}
}
return dst;
}
static void
find_empty_segs (PixelRegion *maskPR,
gint scanline,
gint empty_segs[],
gint max_empty,
gint *num_empty,
BoundaryType type,
gint x1,
gint y1,
gint x2,
gint y2)
{
uint8_t* data;
int x;
int start, end;
int val, last;
int endx, l_num_empty;
div_t d;
data = NULL;
start = 0;
end = 0;
*num_empty = 0;
if (scanline < 0 || scanline >= maskPR->h)
{
empty_segs[(*num_empty)++] = 0;
empty_segs[(*num_empty)++] = G_MAXINT;
return;
}
if (type == WithinBounds)
{
if (scanline < y1 || scanline >= y2)
{
empty_segs[(*num_empty)++] = 0;
empty_segs[(*num_empty)++] = G_MAXINT;
return;
}
start = x1;
end = x2;
}
else if (type == IgnoreBounds)
{
start = 0;
end = maskPR->w;
if (scanline < y1 || scanline >= y2)
x2 = -1;
}
/* tilex = -1; */
empty_segs[(*num_empty)++] = 0;
last = -1;
l_num_empty = *num_empty;
d = div (start, 8);
data = ((uint8_t*)maskPR->line[scanline])+d.quot;
for (x = start; x < end;)
{
endx = end;
if (type == IgnoreBounds && (endx > x1 || x < x2))
{
for (; x < endx; x++)
{
if (*data & (1<<d.rem))
if (x >= x1 && x < x2)
val = -1;
else
val = 1;
else
val = -1;
_image_bitmap_next_bit(d, data);
if (last != val)
empty_segs[l_num_empty++] = x;
last = val;
}
}
else
{
for (; x < endx; x++)
{
if (*data & (1<<d.rem))
val = 1;
else
val = -1;
_image_bitmap_next_bit(d, data);
if (last != val)
empty_segs[l_num_empty++] = x;
last = val;
}
}
}
*num_empty = l_num_empty;
if (last > 0)
empty_segs[(*num_empty)++] = x;
empty_segs[(*num_empty)++] = G_MAXINT;
}
int image_count_diff(const Image* i1, const Image* i2)
{
int c, size, diff = 0;
if ((i1->getPixelFormat() != i2->getPixelFormat()) ||
(i1->w != i2->w) || (i1->h != i2->h))
return -1;
size = i1->w * i1->h;
switch (i1->getPixelFormat()) {
case IMAGE_RGB:
{
uint32_t* address1 = (uint32_t*)i1->dat;
uint32_t* address2 = (uint32_t*)i2->dat;
for (c=0; c<size; c++)
if (*(address1++) != *(address2++))
diff++;
}
break;
case IMAGE_GRAYSCALE:
{
uint16_t* address1 = (uint16_t*)i1->dat;
uint16_t* address2 = (uint16_t*)i2->dat;
for (c=0; c<size; c++)
if (*(address1++) != *(address2++))
diff++;
}
break;
case IMAGE_INDEXED:
{
uint8_t* address1 = (uint8_t*)i1->dat;
uint8_t* address2 = (uint8_t*)i2->dat;
for (c=0; c<size; c++)
if (*(address1++) != *(address2++))
diff++;
}
break;
case IMAGE_BITMAP:
/* TODO test it */
{
uint8_t* address1 = (uint8_t*)i1->dat;
uint8_t* address2 = (uint8_t*)i2->dat;
div_t d1 = div (0, 8);
div_t d2 = div (0, 8);
for (c=0; c<size; c++) {
if (((*address1) & (1<<d1.rem)) !=
((*address2) & (1<<d2.rem)))
diff++;
_image_bitmap_next_bit(d1, address1);
_image_bitmap_next_bit(d2, address2);
}
}
break;
}
return diff;
}
// clears the mask region in the current sprite with the specified background color
void UndoTransaction::clearMask(int bgcolor)
{
Cel* cel = getCurrentCel();
if (!cel)
return;
Image* image = getCelImage(cel);
if (!image)
return;
Mask* mask = m_document->getMask();
// If the mask is empty or is not visible then we have to clear the
// entire image in the cel.
if (!m_document->isMaskVisible()) {
// If the layer is the background then we clear the image.
if (m_sprite->getCurrentLayer()->is_background()) {
if (isEnabled())
m_undoHistory->pushUndoer(new undoers::ImageArea(m_undoHistory->getObjects(),
image, 0, 0, image->w, image->h));
// clear all
image_clear(image, bgcolor);
}
// If the layer is transparent we can remove the cel (and its
// associated image).
else {
removeCel(static_cast<LayerImage*>(m_sprite->getCurrentLayer()), cel);
}
}
else {
int offset_x = mask->getBounds().x-cel->getX();
int offset_y = mask->getBounds().y-cel->getY();
int u, v, putx, puty;
int x1 = MAX(0, offset_x);
int y1 = MAX(0, offset_y);
int x2 = MIN(image->w-1, offset_x+mask->getBounds().w-1);
int y2 = MIN(image->h-1, offset_y+mask->getBounds().h-1);
// do nothing
if (x1 > x2 || y1 > y2)
return;
if (isEnabled())
m_undoHistory->pushUndoer(new undoers::ImageArea(m_undoHistory->getObjects(),
image, x1, y1, x2-x1+1, y2-y1+1));
// clear the masked zones
for (v=0; v<mask->getBounds().h; v++) {
div_t d = div(0, 8);
uint8_t* address = ((uint8_t**)mask->getBitmap()->line)[v]+d.quot;
for (u=0; u<mask->getBounds().w; u++) {
if ((*address & (1<<d.rem))) {
putx = u + offset_x;
puty = v + offset_y;
image_putpixel(image, putx, puty, bgcolor);
}
_image_bitmap_next_bit(d, address);
}
}
}
}
