36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
#include <map>
|
|
#include <string>
|
|
#include <vips/vips8>
|
|
|
|
#include "common.h"
|
|
|
|
using namespace std;
|
|
using namespace vips;
|
|
|
|
VImage sepia = VImage::new_matrixv(3, 3, 0.3588, 0.7044, 0.1368, 0.2990, 0.5870,
|
|
0.1140, 0.2392, 0.4696, 0.0912);
|
|
|
|
char *Colors(string type, string *outType, char *BufferData,
|
|
size_t BufferLength, ArgumentMap Arguments, size_t *DataSize) {
|
|
string color = GetArgument<string>(Arguments, "color");
|
|
|
|
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);
|
|
|
|
VImage out;
|
|
|
|
if (color == "grayscale") {
|
|
out = in.colourspace(VIPS_INTERPRETATION_B_W);
|
|
} else if (color == "sepia") {
|
|
out = in.extract_band(0, VImage::option()->set("n", 3)).recomb(sepia);
|
|
}
|
|
|
|
void *buf;
|
|
out.write_to_buffer(("." + *outType).c_str(), &buf, DataSize);
|
|
|
|
return (char *)buf;
|
|
}
|