| // Adds compile-time JS functions to augment the CanvasKit interface. |
| // Specifically, anything that should only be on the Skottie builds of canvaskit. |
| |
| // assets is a dictionary of named blobs: { key: ArrayBuffer, ... } |
| // The keys should be well-behaved strings - they're turned into null-terminated |
| // strings for the native side. |
| CanvasKit.MakeManagedAnimation = function(json, assets) { |
| if (!CanvasKit._MakeManagedAnimation) { |
| throw 'Not compiled with MakeManagedAnimation'; |
| } |
| if (!assets) { |
| return CanvasKit._MakeManagedAnimation(json, 0, nullptr, nullptr, nullptr); |
| } |
| var assetNamePtrs = []; |
| var assetDataPtrs = []; |
| var assetSizes = []; |
| |
| var assetKeys = Object.keys(assets || {}); |
| for (var i = 0; i < assetKeys.length; i++) { |
| var key = assetKeys[i]; |
| var buffer = assets[key]; |
| var data = new Uint8Array(buffer); |
| |
| var iptr = CanvasKit._malloc(data.byteLength); |
| CanvasKit.HEAPU8.set(data, iptr); |
| assetDataPtrs.push(iptr); |
| assetSizes.push(data.byteLength); |
| |
| // lengthBytesUTF8 and stringToUTF8Array are defined in the emscripten |
| // JS. See https://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html#stringToUTF8 |
| // Add 1 for null terminator |
| var strLen = lengthBytesUTF8(key) + 1; |
| var strPtr = CanvasKit._malloc(strLen); |
| |
| stringToUTF8(key, strPtr, strLen); |
| assetNamePtrs.push(strPtr); |
| } |
| |
| // Not entirely sure if it matters, but the uintptr_t are 32 bits |
| // we want to copy our array of uintptr_t into the right size memory. |
| var namesPtr = copy1dArray(assetNamePtrs, "HEAPU32"); |
| var assetsPtr = copy1dArray(assetDataPtrs, "HEAPU32"); |
| var assetSizesPtr = copy1dArray(assetSizes, "HEAPU32"); |
| |
| var anim = CanvasKit._MakeManagedAnimation(json, assetKeys.length, namesPtr, |
| assetsPtr, assetSizesPtr); |
| |
| // The C++ code has made copies of the asset and string data, so free our copies. |
| CanvasKit._free(namesPtr); |
| CanvasKit._free(assetsPtr); |
| CanvasKit._free(assetSizesPtr); |
| |
| return anim; |
| }; |
| |
| (function(CanvasKit){ |
| CanvasKit._extraInitializations = CanvasKit._extraInitializations || []; |
| CanvasKit._extraInitializations.push(function() { |
| |
| CanvasKit.ManagedAnimation.prototype.setColor = function(key, color) { |
| var cPtr = copyColorToWasm(color); |
| this._setColor(key, cPtr); |
| } |
| |
| }); |
| }(Module)); // When this file is loaded in, the high level object is "Module"; |