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add -cscale

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This commit is contained in:
David Rose 2005-10-04 13:37:19 +00:00
parent 60c571f684
commit 0f01f99d2a
2 changed files with 32 additions and 0 deletions
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30
pandatool/src/imageprogs/imageTrans.cxx
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@ -41,7 +41,13 @@ ImageTrans() : ImageFilter(true) {
"image.",
&ImageTrans::dispatch_channels, NULL, &_channels);
add_option
("cscale", "r,g,b[,a]", 50,
"Apply the indicated color scale to each pixel of the image.",
&ImageTrans::dispatch_color, &_has_color_scale, &_color_scale);
_channels = C_default;
_color_scale.set(1.0f, 1.0f, 1.0f, 1.0f);
}
////////////////////////////////////////////////////////////////////
@ -82,6 +88,30 @@ run() {
break;
}
if (_has_color_scale) {
if (_color_scale[0] != 1.0f ||
_color_scale[1] != 1.0f ||
_color_scale[2] != 1.0f) {
for (int yi = 0; yi < _image.get_y_size(); ++yi) {
for (int xi = 0; xi < _image.get_x_size(); ++xi) {
RGBColord rgb = _image.get_xel(xi, yi);
_image.set_xel(xi, yi,
rgb[0] * _color_scale[0],
rgb[1] * _color_scale[1],
rgb[2] * _color_scale[2]);
}
}
}
if (_image.has_alpha() && _color_scale[3] != 1.0f) {
for (int yi = 0; yi < _image.get_y_size(); ++yi) {
for (int xi = 0; xi < _image.get_x_size(); ++xi) {
float a = _image.get_alpha(xi, yi);
_image.set_alpha(xi, yi, a * _color_scale[3]);
}
}
}
}
write_image();
}

2
pandatool/src/imageprogs/imageTrans.h
View File

@ -52,6 +52,8 @@ private:
};
Channels _channels;
Colorf _color_scale;
bool _has_color_scale;
};
#endif