mrmBot-Matrix/natives/blur.cc

35 lines
955 B
C++

#include "common.h"
#include <map>
#include <string>
#include <vips/vips8>
using namespace std;
using namespace vips;
char *Blur(string type, char *BufferData, size_t BufferLength,
ArgumentMap Arguments, size_t *DataSize) {
bool sharp = GetArgument<bool>(Arguments, "sharp");
VOption *options = VImage::option()->set("access", "sequential");
VImage in =
VImage::new_from_buffer(BufferData, BufferLength, "",
type == "gif" ? options->set("n", -1) : options)
.colourspace(VIPS_INTERPRETATION_sRGB);
if (!in.has_alpha())
in = in.bandjoin(255);
// TODO: find a better way to calculate the intensity for GIFs without
// splitting frames
VImage out =
sharp ? in.sharpen(VImage::option()->set("sigma", 3)) : in.gaussblur(15);
void *buf;
out.write_to_buffer(("." + type).c_str(), &buf, DataSize);
vips_error_clear();
vips_thread_shutdown();
return (char *)buf;
}