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Add support for PNG format. Close #2.

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Lovell Fuller
2013-10-26 16:32:18 +01:00
parent daeebcc7dc
commit 21f12e74ba
8 changed files with 191 additions and 111 deletions
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28
src/sharp.cc
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@@ -35,11 +35,22 @@ struct ResizeBaton {
Persistent<Function> callback;
};
bool EndsWith(std::string const &str, std::string const &end) {
return str.length() >= end.length() && 0 == str.compare(str.length() - end.length(), end.length(), end);
}
void ResizeAsync(uv_work_t *work) {
ResizeBaton* baton = static_cast<ResizeBaton*>(work->data);
VipsImage *in = vips_image_new_mode((baton->src).c_str(), "p");
vips_jpegload((baton->src).c_str(), &in, NULL);
if (EndsWith(baton->src, ".jpg") || EndsWith(baton->src, ".jpeg")) {
vips_jpegload((baton->src).c_str(), &in, NULL);
} else if (EndsWith(baton->src, ".png")) {
vips_pngload((baton->src).c_str(), &in, NULL);
} else {
(baton->err).append("Unsupported input file type");
return;
}
if (in == NULL) {
(baton->err).append(vips_error_buffer());
vips_error_clear();
@@ -114,9 +125,18 @@ void ResizeAsync(uv_work_t *work) {
}
img = t[3];
if (vips_jpegsave(img, baton->dst.c_str(), "Q", 80, "profile", "none", "optimize_coding", TRUE, NULL)) {
(baton->err).append(vips_error_buffer());
vips_error_clear();
if (EndsWith(baton->dst, ".jpg") || EndsWith(baton->dst, ".jpeg")) {
if (vips_jpegsave(img, baton->dst.c_str(), "Q", 80, "profile", "none", "optimize_coding", TRUE, NULL)) {
(baton->err).append(vips_error_buffer());
vips_error_clear();
}
} else if (EndsWith(baton->dst, ".png")) {
if (vips_pngsave(img, baton->dst.c_str(), "compression", 6, "interlace", FALSE, NULL)) {
(baton->err).append(vips_error_buffer());
vips_error_clear();
}
} else {
(baton->err).append("Unsupported output file type");
}
}