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ImageMagick: get and set image color depth

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This commit is contained in:
Kovid Goyal 2012-09-01 00:37:47 +05:30
parent e6ff759719
commit 30b3be2f0b
1 changed files with 40 additions and 0 deletions
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40
src/calibre/utils/magick/magick.c
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@ -1104,6 +1104,40 @@ magick_Image_type_setter(magick_Image *self, PyObject *val, void *closure) {
// }}}
// Image.depth {{{
static PyObject *
magick_Image_depth_getter(magick_Image *self, void *closure) {
NULL_CHECK(NULL)
return Py_BuildValue("n", MagickGetImageDepth(self->wand));
}
static int
magick_Image_depth_setter(magick_Image *self, PyObject *val, void *closure) {
size_t depth;
NULL_CHECK(-1)
if (val == NULL) {
PyErr_SetString(PyExc_TypeError, "Cannot delete image depth");
return -1;
}
if (!PyInt_Check(val)) {
PyErr_SetString(PyExc_TypeError, "Depth must be an integer");
return -1;
}
depth = (size_t)PyInt_AsSsize_t(val);
if (!MagickSetImageDepth(self->wand, depth)) {
PyErr_Format(PyExc_ValueError, "Could not set image depth to %lu", depth);
return -1;
}
return 0;
}
// }}}
// Image.destroy {{{
static PyObject *
@ -1260,6 +1294,12 @@ static PyGetSetDef magick_Image_getsetters[] = {
(char *)"the image type: UndefinedType, BilevelType, GrayscaleType, GrayscaleMatteType, PaletteType, PaletteMatteType, TrueColorType, TrueColorMatteType, ColorSeparationType, ColorSeparationMatteType, or OptimizeType.",
NULL},
{(char *)"depth",
(getter)magick_Image_depth_getter, (setter)magick_Image_depth_setter,
(char *)"the image depth.",
NULL},
{NULL} /* Sentinel */
};