bool egami::loadEDF(const std::string& _inputFile, egami::Image& _ouputImage) {
etk::FSNode file(_inputFile);
if (false == file.exist()) {
EGAMI_ERROR("File does not existed='" << file << "'");
return false;
}
if(false == file.fileOpenRead() ) {
EGAMI_ERROR("Can not find the file name='" << file << "'");
return false;
}
std::string line;
file.fileGets(line);
if (etk::start_with(line, "#edf", false) == false) {
EGAMI_ERROR("This file seams not to be a EDF file ...");
file.fileClose();
return false;
}
// count number of colomn max an number of line max:
ivec2 size(0,0);
while (file.fileGets(line) == true) {
if (line.size()/2 > (size_t)size.x()) {
size.setValue(line.size()/2, size.y()+1);
} else {
size += ivec2(0,1);
}
}
if (line.size()/2 > (size_t)size.x()) {
size.setValue(line.size()/2, size.y()+1);
} else {
size += ivec2(0,1);
}
EGAMI_DEBUG("'" << file << "' ==> size=" << size);
// jup to the start of the file
file.fileSeek(0, etk::FSN_SEEK_START);
// drop the first line
file.fileGets(line);
// resize output:
_ouputImage.resize(size);
int32_t currentLineId = 0;
char tmp[3];
tmp[2] = '\0';
while (file.fileGets(line) == true) {
if (line.size() <= 0) {
continue;
}
for (size_t xxx = 0; xxx < line.size()-1; xxx+=2) {
tmp[0] = line[xxx];
tmp[1] = line[xxx+1];
int32_t val = 0;
sscanf(tmp, "%x", &val);
_ouputImage.set(ivec2(xxx/2, currentLineId), etk::Color<>((uint8_t)val, (uint8_t)val, (uint8_t)val, (uint8_t)val));
}
++currentLineId;
}
if (line.size() > 0) {
for (size_t xxx = 0; xxx < line.size()-1; xxx+=2) {
tmp[0] = line[xxx];
tmp[1] = line[xxx+1];
int32_t val = 0;
sscanf(tmp, "%x", &val);
_ouputImage.set(ivec2(xxx/2, currentLineId), etk::Color<>((uint8_t)val, (uint8_t)val, (uint8_t)val, (uint8_t)val));
}
}
file.fileClose();
return true;
}
void ewol::resource::DistanceFieldFont::generateDistanceField(const egami::ImageMono& _input, egami::Image& _output) {
std11::unique_lock<std11::recursive_mutex> lock(m_mutex);
int32_t size = _input.getSize().x() * _input.getSize().y();
std::vector<short> xdist(size);
std::vector<short> ydist(size);
std::vector<double> gx(size);
std::vector<double> gy(size);
std::vector<double> data(size);
std::vector<double> outside(size);
std::vector<double> inside(size);
// Convert img into double (data)
double img_min = 255, img_max = -255;
for (int32_t yyy = 0; yyy < _input.getSize().y(); ++yyy) {
for (int32_t xxx = 0; xxx < _input.getSize().x(); ++xxx) {
int32_t iii = yyy * _input.getSize().x() + xxx;
double v = _input.get(ivec2(xxx, yyy));
data[iii] = v;
if (v > img_max) {
img_max = v;
}
if (v < img_min) {
img_min = v;
}
}
}
// Rescale image levels between 0 and 1
for (int32_t yyy = 0; yyy < _input.getSize().y(); ++yyy) {
for (int32_t xxx = 0; xxx < _input.getSize().x(); ++xxx) {
int32_t iii = yyy * _input.getSize().x() + xxx;
data[iii] = (_input.get(ivec2(xxx, yyy))-img_min)/img_max;
}
}
// Compute outside = edtaa3(bitmap); % Transform background (0's)
computegradient(&data[0], _input.getSize().x(), _input.getSize().y(), &gx[0], &gy[0]);
edtaa3(&data[0], &gx[0], &gy[0], _input.getSize().x(), _input.getSize().y(), &xdist[0], &ydist[0], &outside[0]);
for(size_t iii = 0; iii < outside.size(); ++iii) {
if( outside[iii] < 0 ) {
outside[iii] = 0.0;
}
}
// Compute inside = edtaa3(1-bitmap); % Transform foreground (1's)
for(size_t iii = 0; iii < gx.size(); ++iii) {
gx[iii] = 0;
}
for(size_t iii = 0; iii < gy.size(); ++iii) {
gy[iii] = 0;
}
for(size_t iii = 0; iii < data.size(); ++iii) {
data[iii] = 1 - data[iii];
}
computegradient( &data[0], _input.getSize().x(), _input.getSize().y(), &gx[0], &gy[0]);
edtaa3(&data[0], &gx[0], &gy[0], _input.getSize().x(), _input.getSize().y(), &xdist[0], &ydist[0], &inside[0]);
for(size_t iii = 0; iii < inside.size(); ++iii) {
if( inside[iii] < 0 ) {
inside[iii] = 0.0;
}
}
_output.resize(_input.getSize(), etk::Color<>(0));
_output.clear(etk::Color<>(0));
for (int32_t xxx = 0; xxx < _output.getSize().x(); ++xxx) {
for (int32_t yyy = 0; yyy < _output.getSize().y(); ++yyy) {
int32_t iii = yyy * _output.getSize().x() + xxx;
outside[iii] -= inside[iii];
outside[iii] = 128+outside[iii]*16;
if( outside[iii] < 0 ) {
outside[iii] = 0;
}
if( outside[iii] > 255 ) {
outside[iii] = 255;
}
uint8_t val = 255 - (unsigned char) outside[iii];
// TODO : Remove multiple size of the map ...
_output.set(ivec2(xxx, yyy), etk::Color<>((int32_t)val,(int32_t)val,(int32_t)val,255));
}
}
}