skia2/experimental/tskit/interface/extension.ts
Kevin Lubick ed0c0ed028 [canvaskit] Add initial implementation of generating TS
This adds some initial features for generating the ambient
namespace files (the TS equivalent of .h files) for the
C++ binding files. There are a few tests and it works on
the sample code in tskit.

I split the bindings/ folder into bindings/ and interface/
(for C++ and TS code, respectively).

This can be tested locally by running
make generate && make debug && make serve
and verifying that everything compiles and runs in the browser.

One thing I changed for easier parsing was making a @type
annotation required, with an @optional tag for making a field
or constant optional.

Change-Id: If9c5a664e84fac4c734277cddd7774989a1f7bf8
Bug: skia:11826
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/407476
Reviewed-by: Nathaniel Nifong <nifong@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
2021-05-17 13:56:31 +00:00

30 lines
1.1 KiB
TypeScript

/// <reference path="load.ts" />
/// <reference path="memory.ts" />
/// <reference path="../bindings/extension.d.ts" />
/// <reference path="public_api.d.ts" />
// eslint-disable-next-line @typescript-eslint/no-unused-vars
namespace Extension {
// Module is the C++ module with the private (and some public) bindings on it.
declare const Module: extension.Bindings;
declare const CanvasKit: public_api.CanvasKit;
load.afterLoad(() => {
/**
* publicExtension takes the number of rects and returns how
* many of them have the point (5, 5) in them.
* @param myRects
* @ts publicExtension(myRects: InputFlattenedRectArray): void;
*/
CanvasKit.publicExtension = (myRects: public_api.InputFlattenedRectArray) => {
const rPtr = memory.copy1dArray(myRects, 'HEAPF32');
const num = Module._privateExtension(rPtr, myRects.length / 4);
memory.freeIfNecessary(rPtr, myRects);
return num;
};
CanvasKit.withObject = (obj: public_api.CompoundObj) => {
obj.gamma ||= 1.0;
Module._withObject(obj);
};
});
}