bool SkDilateImageFilter::onFilterImage(Proxy* proxy,
const SkBitmap& source, const SkMatrix& ctm,
SkBitmap* dst, SkIPoint* offset) {
SkBitmap src = this->getInputResult(proxy, source, ctm, offset);
if (src.config() != SkBitmap::kARGB_8888_Config) {
return false;
}
SkAutoLockPixels alp(src);
if (!src.getPixels()) {
return false;
}
dst->setConfig(src.config(), src.width(), src.height());
dst->allocPixels();
int width = radius().width();
int height = radius().height();
if (width < 0 || height < 0) {
return false;
}
if (width == 0 && height == 0) {
src.copyTo(dst, dst->config());
return true;
}
SkBitmap temp;
temp.setConfig(dst->config(), dst->width(), dst->height());
if (!temp.allocPixels()) {
return false;
}
if (width > 0 && height > 0) {
dilateX(src, &temp, width);
dilateY(temp, dst, height);
} else if (width > 0) {
dilateX(src, dst, width);
} else if (height > 0) {
dilateY(src, dst, height);
}
return true;
}
int DilationXY(densityDataType* data, int range, densityDataType* dilation)
{
int height=(*data).sizeY;
int width=(*data).sizeX;
int imagesize=height*width+1;
densityDataType help;
(help).sizeX=width;
(help).sizeY=height;
(help).data=(float*) malloc( sizeof(float) * imagesize);
int n=range/2;
int x,y;
for ( y=n+10;y<(*data).sizeY-(n+10);y++)
{
for ( x=n+10;x<(*data).sizeX-(n+10);x++)
{
//printf("hello\n");
intVectorType x0;
x0.x=x;
x0.y=y;
ACCESSDATAATPOINT(help,x,y) = dilateX(data,x0,range);
//printf("x=%d y=%d diletate=%f\n",x,y,value);
};
};
for ( y=n+10;y<(*data).sizeY-(n+10);y++)
{
for ( x=n+10;x<(*data).sizeX-(n+10);x++)
{
//printf("hello\n");
intVectorType x0;
x0.x=x;
x0.y=y;
ACCESSDATAATPOINT((*dilation),x,y) = dilateY(&help,x0,range);
//printf("x=%d y=%d diletate=%f\n",x,y,value);
};
};
free(help.data);
return 0;
};
bool SkDilateImageFilter::onFilterImage(Proxy* proxy,
const SkBitmap& source, const SkMatrix& ctm,
SkBitmap* dst, SkIPoint* offset) {
SkBitmap src = source;
if (getInput(0) && !getInput(0)->filterImage(proxy, source, ctm, &src, offset)) {
return false;
}
if (src.config() != SkBitmap::kARGB_8888_Config) {
return false;
}
SkIRect bounds;
src.getBounds(&bounds);
if (!this->applyCropRect(&bounds, ctm)) {
return false;
}
SkAutoLockPixels alp(src);
if (!src.getPixels()) {
return false;
}
dst->setConfig(src.config(), bounds.width(), bounds.height());
dst->allocPixels();
if (!dst->getPixels()) {
return false;
}
int width = radius().width();
int height = radius().height();
if (width < 0 || height < 0) {
return false;
}
if (width == 0 && height == 0) {
src.extractSubset(dst, bounds);
offset->fX += bounds.left();
offset->fY += bounds.top();
return true;
}
SkBitmap temp;
temp.setConfig(dst->config(), dst->width(), dst->height());
if (!temp.allocPixels()) {
return false;
}
if (width > 0 && height > 0) {
dilateX(src, &temp, width, bounds);
SkIRect tmpBounds = SkIRect::MakeWH(bounds.width(), bounds.height());
dilateY(temp, dst, height, tmpBounds);
} else if (width > 0) {
dilateX(src, dst, width, bounds);
} else if (height > 0) {
dilateY(src, dst, height, bounds);
}
offset->fX += bounds.left();
offset->fY += bounds.top();
return true;
}