fix some bugs in spine webassembly

cocos/spine/assembler/simple.ts

@@ -54,6 +54,9 @@ let _useTint = false;
 const _byteStrideOneColor = getAttributeStride(vfmtPosUvColor4B);
 const _byteStrideTwoColor = getAttributeStride(vfmtPosUvTwoColor4B);
 
+const DEBUG_TYPE_REGION = 0;
+const DEBUG_TYPE_MESH = 1;
+
 function _getSlotMaterial (blendMode: number, comp: Skeleton) {
     let src: BlendFactor;
     let dst: BlendFactor;
@@ -136,7 +139,7 @@ function updateComponentRenderData (comp: Skeleton, batcher: Batcher2D) {
     }
     const rd = comp.renderData!;
     const accessor = _useTint ? _tintAccessor : _accessor;
-    accessor.getMeshBuffer(rd.chunk.bufferId).setDirty();
+    if (rd.vertexCount > 0 || rd.indexCount > 0) accessor.getMeshBuffer(rd.chunk.bufferId).setDirty();
 }
 
 function realTimeTraverse (comp: Skeleton) {
@@ -151,6 +154,8 @@ function realTimeTraverse (comp: Skeleton) {
         rd.resize(vc, ic);
         rd.indices = new Uint16Array(ic);
     }
+    if (vc < 1 || ic < 1) return;
+
     const vbuf = rd.chunk.vb;
     const vUint8Buf = new Uint8Array(vbuf.buffer, vbuf.byteOffset, Float32Array.BYTES_PER_ELEMENT * vbuf.length);
 
@@ -179,8 +184,9 @@ function realTimeTraverse (comp: Skeleton) {
     for (let i = 0; i < count; i++) {
         const mesh = meshes.get(i);
         const material = _getSlotMaterial(mesh.blendMode, comp);
+        const textureID = mesh.textureID;
         indexCount = mesh.iCount;
-        comp.requestDrawData(material, indexOffset, indexCount);
+        comp.requestDrawData(material, textureID, indexOffset, indexCount);
         indexOffset += indexCount;
     }
     // if enableBatch apply worldMatrix
@@ -211,8 +217,7 @@ function realTimeTraverse (comp: Skeleton) {
         const shapeCount = debugShapes.size();
         for (let i = 0; i < shapeCount; i++) {
             const shape = debugShapes.get(i);
-            const type = shape.type;
-            if (type.value === 0 && comp.debugSlots) {
+            if (shape.type === DEBUG_TYPE_REGION && comp.debugSlots) {
                 graphics.strokeColor = _slotColor;
                 const vertexFloatOffset = shape.vOffset * floatStride;
                 const vertexFloatCount = shape.vCount * floatStride;
@@ -222,7 +227,7 @@ function realTimeTraverse (comp: Skeleton) {
                 }
                 graphics.close();
                 graphics.stroke();
-            } else if (type.value === 1 && comp.debugMesh) {
+            } else if (shape.type === DEBUG_TYPE_MESH && comp.debugMesh) {
                 // draw debug mesh if enabled graphics
                 graphics.strokeColor = _meshColor;
                 const iCount = shape.iCount as number;
@@ -277,6 +282,8 @@ function cacheTraverse (comp: Skeleton) {
         rd.resize(vc, ic);
         rd.indices = new Uint16Array(ic);
     }
+    if (vc < 1 || ic < 1) return;
+
     const vbuf = rd.chunk.vb;
     const vUint8Buf = new Uint8Array(vbuf.buffer, vbuf.byteOffset, Float32Array.BYTES_PER_ELEMENT * vbuf.length);
     vUint8Buf.set(model.vData);
@@ -321,8 +328,9 @@ function cacheTraverse (comp: Skeleton) {
     for (let i = 0; i < count; i++) {
         const mesh = meshes[i];
         const material = _getSlotMaterial(mesh.blendMode, comp);
+        const textureID = mesh.textureID;
         indexCount = mesh.iCount;
-        comp.requestDrawData(material, indexOffset, indexCount);
+        comp.requestDrawData(material, textureID, indexOffset, indexCount);
         indexOffset += indexCount;
     }
 

cocos/spine/lib/spine-core.d.ts

@@ -1277,7 +1277,7 @@ declare namespace spine {
     class SkeletonInstance {
         initSkeleton(data: SkeletonData);
         getAnimationState();
-        setAnimation(trackIndex: number, name: string, loop: boolean);
+        setAnimation(trackIndex: number, name: string, loop: boolean): spine.TrackEntry;
         setSkin(name: string);
         setPremultipliedAlpha(usePremultipliedAlpha: boolean);
         setColor(r: number, g: number, b: number, a: number);
@@ -1291,6 +1291,8 @@ declare namespace spine {
         setListener(id: number, type: number);
         setDebugMode(debug: boolean);
         getDebugShapes();
+        resizeSlotRegion(slotName: string, width: number, height: number, createNew: boolean);
+        setSlotTexture(slotName: string, index: number);
     }
 
     class wasmUtil {

cocos/spine/skeleton.ts

@@ -47,6 +47,7 @@ import { TrackEntryListeners } from './track-entry-listeners';
 
 const spineTag = SPINE_WASM;
 const CachedFrameTime = 1 / 60;
+let _slotTextureID = 100;
 
 type TrackListener = (x: spine.TrackEntry) => void;
 type TrackListener2 = (x: spine.TrackEntry, ev: spine.Event) => void;
@@ -116,6 +117,7 @@ interface AnimationItem {
  */
 export interface SkeletonDrawData {
     material: Material | null;
+    texture: Texture2D | null;
     indexOffset: number;
     indexCount: number;
 }
@@ -223,12 +225,13 @@ export class Skeleton extends UIRenderer {
     public _skeleton: spine.Skeleton = null!;
     protected _instance: spine.SkeletonInstance = null!;
     protected _state: spine.AnimationState = null!;
-    protected _texture: Texture2D | null = null;
+    protected _textures: Texture2D[] = [];
     // Animation name
     protected _animationName = '';
     protected _skinName = '';
     protected _drawList = new RecyclePool<SkeletonDrawData>(() => ({
         material: null,
+        texture: null,
         indexOffset: 0,
         indexCount: 0,
     }), 1);
@@ -261,6 +264,8 @@ export class Skeleton extends UIRenderer {
      */
     public _debugRenderer: Graphics | null = null;
 
+    private _slotTextures: Map<number, Texture2D> | null = null;
+
     constructor () {
         super();
         this._useVertexOpacity = true;
@@ -299,6 +304,8 @@ export class Skeleton extends UIRenderer {
             this._skeletonData = value as any;
             this.defaultSkin = '';
             this.defaultAnimation = '';
+            this._animationName = '';
+            this._skinName = '';
             this._updateSkeletonData();
             this._updateUITransform();
         }
@@ -586,6 +593,8 @@ export class Skeleton extends UIRenderer {
 
     public __preload () {
         super.__preload();
+        this._updateSkeletonData();
+        this._updateDebugDraw();
     }
 
     public onRestore () {
@@ -597,7 +606,6 @@ export class Skeleton extends UIRenderer {
      */
     public onEnable () {
         super.onEnable();
-        this._updateSkeletonData();
         this._flushAssembler();
         SkeletonSystem.getInstance().add(this);
     }
@@ -632,10 +640,13 @@ export class Skeleton extends UIRenderer {
     protected _updateSkeletonData () {
         const skeletonData = this._skeletonData;
         if (!skeletonData) {
-            this._texture = null;
+            this._runtimeData = null!;
+            this._state = null!;
+            this._skeleton = null!;
+            this._textures = [];
             return;
         }
-        this._texture = skeletonData.textures[0];
+        this._textures = skeletonData.textures;
 
         this._runtimeData = skeletonData.getRuntimeData();
         if (!this._runtimeData) return;
@@ -693,15 +704,15 @@ export class Skeleton extends UIRenderer {
      * @param name @en The name of animation. @zh 动画名称。
      * @param loop @en Use loop mode or not. @zh 是否使用循环播放模式。
      */
-    public setAnimation (trackIndex: number, name: string, loop?: boolean) {
+    public setAnimation (trackIndex: number, name: string, loop?: boolean): spine.TrackEntry | null {
+        let trackEntry: spine.TrackEntry | null = null;
         if (loop === undefined) loop = true;
-
         if (this.isAnimationCached()) {
             if (trackIndex !== 0) {
                 warn('Track index can not greater than 0 in cached mode.');
             }
             this._animationName = name;
-            if (!this._skeletonCache) return;
+            if (!this._skeletonCache) return trackEntry;
             let cache = this._skeletonCache.getAnimationCache(this._skeletonData!._uuid, this._animationName);
             if (!cache) {
                 cache = this._skeletonCache.initAnimationCache(this._skeletonData!, this._animationName);
@@ -715,9 +726,65 @@ export class Skeleton extends UIRenderer {
             this._playCount = 0;
         } else {
             this._animationName = name;
-            this._instance.setAnimation(trackIndex, name, loop);
+            trackEntry = this._instance.setAnimation(trackIndex, name, loop);
         }
         this.markForUpdateRenderData();
+        return trackEntry;
+    }
+
+    /**
+     * @en Adds an animation to be played delay seconds after the current or last queued animation.<br>
+     * Returns a {{#crossLinkModule "sp.spine"}}sp.spine{{/crossLinkModule}}.TrackEntry object.
+     * @zh 添加一个动画到动画队列尾部，还可以延迟指定的秒数。<br>
+     * 返回一个 {{#crossLinkModule "sp.spine"}}sp.spine{{/crossLinkModule}}.TrackEntry 对象。
+     * @param trackIndex @en Index of trackEntry. @zh TrackEntry 索引。
+     * @param name @en The name of animation. @zh 动画名称。
+     * @param loop @en Set play animation in a loop. @zh 是否循环播放。
+     * @param delay @en Delay time of animation start. @zh 动画开始的延迟时间。
+     * @return {sp.spine.TrackEntry}
+     */
+    public addAnimation (trackIndex: number, name: string, loop: boolean, delay?: number) {
+        delay = delay || 0;
+        if (this.isAnimationCached()) {
+            warn(`Cached mode not support addAnimation.`);
+            return null;
+        } else if (this._skeleton) {
+            const animation = this._skeleton.data.findAnimation(name);
+            if (!animation) {
+                error(`Not find animation named ${name}`);
+                return null;
+            }
+            return this._state?.addAnimationWith(trackIndex, animation, loop, delay);
+        }
+        return null;
+    }
+    /**
+     * @en Find animation with specified name.
+     * @zh 查找指定名称的动画
+     * @param name @en The name of animation. @zh 动画名称。
+     * @returns {sp.spine.Animation}
+     */
+    public findAnimation (name: string) {
+        if (this._skeleton) {
+            return this._skeleton.data.findAnimation(name);
+        }
+        return null;
+    }
+    /**
+     * @en Returns track entry by trackIndex.<br>
+     * Returns a {{#crossLinkModule "sp.spine"}}sp.spine{{/crossLinkModule}}.TrackEntry object.
+     * @zh 通过 track 索引获取 TrackEntry。<br>
+     * 返回一个 {{#crossLinkModule "sp.spine"}}sp.spine{{/crossLinkModule}}.TrackEntry 对象。
+     * @param trackIndex @en The index of trackEntry. @zh TrackEntry 索引。
+     * @return {sp.spine.TrackEntry}
+     */
+    public getCurrent (trackIndex: number) {
+        if (this.isAnimationCached()) {
+            warn('\'getCurrent\' interface can not be invoked in cached mode.');
+        } else if (this._state) {
+            return this._state.getCurrent(trackIndex);
+        }
+        return null;
     }
 
     /**
@@ -792,7 +859,7 @@ export class Skeleton extends UIRenderer {
 
     protected _render (batcher: Batcher2D) {
         let indicesCount = 0;
-        if (this.renderData && this._drawList) {
+        if (this.renderData && this._drawList.length > 0) {
             const rd = this.renderData;
             const chunk = rd.chunk;
             const accessor = chunk.vertexAccessor;
@@ -801,9 +868,9 @@ export class Skeleton extends UIRenderer {
             // Fill index buffer
             for (let i = 0; i < this._drawList.length; i++) {
                 const dc = this._drawList.data[i];
-                if (this._texture) {
+                if (dc.texture) {
                     batcher.commitMiddleware(this, meshBuffer, origin + dc.indexOffset,
-                        dc.indexCount, this._texture, dc.material!, this._enableBatch);
+                        dc.indexCount, dc.texture, dc.material!, this._enableBatch);
                 }
                 indicesCount += dc.indexCount;
             }
@@ -815,9 +882,16 @@ export class Skeleton extends UIRenderer {
     /**
      * @engineInternal
      */
-    public requestDrawData (material: Material, indexOffset: number, indexCount: number) {
+    public requestDrawData (material: Material, texureID: number, indexOffset: number, indexCount: number) {
         const draw = this._drawList.add();
         draw.material = material;
+        if (texureID === 0) {
+            draw.texture = this._textures[0];
+        } else {
+            const texture = this._slotTextures?.get(texureID);
+            if (texture) draw.texture = texture;
+            else draw.texture = this._textures[0];
+        }
         draw.indexOffset = indexOffset;
         draw.indexCount = indexCount;
         return draw;
@@ -1243,10 +1317,9 @@ export class Skeleton extends UIRenderer {
                 this._debugRenderer = debugDraw;
                 debugDrawNode.parent = this.node;
             }
-
             if (this.isAnimationCached()) {
                 warn('Debug bones or slots is invalid in cached mode');
-            } else {
+            } else if (!JSB) {
                 this._instance.setDebugMode(true);
             }
         } else if (this._debugRenderer) {
@@ -1453,6 +1526,41 @@ export class Skeleton extends UIRenderer {
     public getDebugShapes (): any {
         return this._instance.getDebugShapes();
     }
+
+    /**
+     * @en Set texture for slot, this function can be use to changing local skin.
+     * @zh 为 slot 设置贴图纹理，可使用该该方法实现局部换装功能。
+     * @param slotName @en The name of slot. @zh Slot 名字。
+     * @param tex2d @en The texture will show on the slot. @zh 在该 Slot 上显示的 2D 纹理。
+     * @param createNew @en Whether to create new Attachment. If value is false, all sp.Skeleton share the
+     * same attachment will be changed. @zh 是否需要创建新的 attachment，如果值为 false, 所有共享相同 attachment
+     * 的组件都将受影响。
+     */
+    public setSlotTexture (slotName: string, tex2d: Texture2D, createNew?: boolean) {
+        if (this.isAnimationCached()) {
+            error(`Cached mode can't change texture of slot`);
+            return;
+        }
+        const slot = this.findSlot(slotName);
+        if (!slot) {
+            error(`No slot named:${slotName}`);
+            return;
+        }
+        const width = tex2d.width;
+        const height = tex2d.height;
+        const createNewAttachment = createNew || false;
+        this._instance.resizeSlotRegion(slotName, width, height, createNewAttachment);
+        if (!this._slotTextures) this._slotTextures = new Map<number, Texture2D>();
+        let textureID = 0;
+        this._slotTextures.forEach((value, key) => {
+            if (value === tex2d) textureID = key;
+        });
+        if (textureID === 0) {
+            textureID = _slotTextureID++;
+            this._slotTextures.set(textureID, tex2d);
+        }
+        this._instance.setSlotTexture(slotName, textureID);
+    }
 }
 
 legacyCC.internal.SpineSkeleton = Skeleton;

native/cocos/editor-support/spine-creator-support/AttachmentVertices.cpp

@@ -50,4 +50,9 @@ AttachmentVertices::~AttachmentVertices() {
     if (_texture) _texture->release();
 }
 
+AttachmentVertices *AttachmentVertices::copy() {
+    AttachmentVertices *atv = new AttachmentVertices(nullptr, _triangles->vertCount, _triangles->indices, _triangles->indexCount);
+    return atv;
+}
+
 } // namespace spine

native/cocos/editor-support/spine-creator-support/AttachmentVertices.h

@@ -40,6 +40,7 @@ class AttachmentVertices {
 public:
     AttachmentVertices(cc::middleware::Texture2D *texture, int verticesCount, uint16_t *triangles, int trianglesCount);
     virtual ~AttachmentVertices();
+    AttachmentVertices *copy();
 
     cc::middleware::Texture2D *_texture = nullptr;
     cc::middleware::Triangles *_triangles = nullptr;