61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
#include <vips/vips8>
|
|
|
|
#include "common.h"
|
|
|
|
using namespace std;
|
|
using namespace vips;
|
|
|
|
ArgumentMap Scott(string type, string *outType, char *BufferData, size_t BufferLength,
|
|
ArgumentMap Arguments, size_t *DataSize) {
|
|
string basePath = GetArgument<string>(Arguments, "basePath");
|
|
|
|
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);
|
|
|
|
int width = in.width();
|
|
int pageHeight = vips_image_get_page_height(in.get_image());
|
|
int nPages = vips_image_get_n_pages(in.get_image());
|
|
|
|
string assetPath = basePath + "assets/images/scott.png";
|
|
VImage bg = VImage::new_from_file(assetPath.c_str());
|
|
|
|
string distortPath = basePath + "assets/images/scottmap.png";
|
|
VImage distort = VImage::new_from_file(distortPath.c_str());
|
|
|
|
VImage distortImage =
|
|
((distort[1] / 255) * 414).bandjoin((distort[0] / 255) * 233);
|
|
|
|
vector<VImage> img;
|
|
for (int i = 0; i < nPages; i++) {
|
|
VImage img_frame =
|
|
type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
|
|
VImage resized = img_frame.resize(
|
|
415 / (double)width,
|
|
VImage::option()->set("vscale", 234 / (double)pageHeight));
|
|
VImage mapped = resized.mapim(distortImage)
|
|
.extract_band(0, VImage::option()->set("n", 3))
|
|
.bandjoin(distort[2]);
|
|
VImage offset = mapped.embed(127, 181, 864, 481);
|
|
VImage composited = bg.composite2(offset, VIPS_BLEND_MODE_OVER);
|
|
img.push_back(composited);
|
|
}
|
|
VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
|
|
final.set(VIPS_META_PAGE_HEIGHT, 481);
|
|
|
|
void *buf;
|
|
final.write_to_buffer(
|
|
("." + *outType).c_str(), &buf, DataSize,
|
|
*outType == "gif" ? VImage::option()->set("dither", 1) : 0);
|
|
|
|
ArgumentMap output;
|
|
output["buf"] = (char *)buf;
|
|
output["width"] = width;
|
|
output["height"] = pageHeight;
|
|
|
|
return output;
|
|
} |