73 lines
No EOL
2.6 KiB
C++
73 lines
No EOL
2.6 KiB
C++
#include <vips/vips8>
|
|
|
|
#include "common.h"
|
|
|
|
using namespace std;
|
|
using namespace vips;
|
|
|
|
char *Globe(string type, string *outType, char *BufferData, size_t BufferLength,
|
|
ArgumentMap Arguments, size_t *DataSize) {
|
|
string basePath = GetArgument<string>(Arguments, "basePath");
|
|
|
|
VOption *options = VImage::option();
|
|
|
|
VImage in =
|
|
VImage::new_from_buffer(
|
|
BufferData, BufferLength, "",
|
|
type == "gif" ? options->set("n", -1)->set("access", "sequential")
|
|
: 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 = type == "gif" ? vips_image_get_n_pages(in.get_image()) : 30;
|
|
|
|
double size = min(width, pageHeight);
|
|
|
|
string diffPath = basePath + "assets/images/globediffuse.png";
|
|
VImage diffuse = VImage::new_from_file(diffPath.c_str())
|
|
.resize(size / 500.0, VImage::option()->set(
|
|
"kernel", VIPS_KERNEL_CUBIC)) /
|
|
255;
|
|
|
|
string specPath = basePath + "assets/images/globespec.png";
|
|
VImage specular = VImage::new_from_file(specPath.c_str())
|
|
.resize(size / 500.0, VImage::option()->set(
|
|
"kernel", VIPS_KERNEL_CUBIC));
|
|
|
|
string distortPath = basePath + "assets/images/spheremap.png";
|
|
VImage distort =
|
|
(VImage::new_from_file(distortPath.c_str())
|
|
.resize(size / 500.0,
|
|
VImage::option()->set("kernel", VIPS_KERNEL_CUBIC)) /
|
|
65535) *
|
|
size;
|
|
|
|
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(
|
|
size / (double)width,
|
|
VImage::option()->set("vscale", size / (double)pageHeight));
|
|
VImage rolled = img_frame.wrap(
|
|
VImage::option()->set("x", width * i / nPages)->set("y", 0));
|
|
VImage extracted = rolled.extract_band(0, VImage::option()->set("n", 3));
|
|
VImage mapped = extracted.mapim(distort);
|
|
VImage composited = mapped * diffuse + specular;
|
|
VImage frame = composited.bandjoin(diffuse > 0.0);
|
|
img.push_back(frame);
|
|
}
|
|
VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
|
|
final.set(VIPS_META_PAGE_HEIGHT, size);
|
|
if (type != "gif") {
|
|
vector<int> delay(30, 50);
|
|
final.set("delay", delay);
|
|
}
|
|
|
|
void *buf;
|
|
final.write_to_buffer(".gif", &buf, DataSize);
|
|
|
|
return (char *)buf;
|
|
} |