Remove unused code in gfx/base, gfx/webgl module and mangle properties to reduce js size.

EngineErrorMap.md

@@ -3832,3 +3832,27 @@ ProgressBar FILLED mode only works when barSprite's Type is FILLED!
 ### 16398
 
 ProgressBar non-FILLED mode only works when barSprite's Type is non-FILLED!
+
+### 16399
+
+CopyTextureToBuffers: not supported texture target.
+
+### 16401
+
+beginRenderPass: Only primary command buffer is supported.
+
+### 16402
+
+execute is not supported.
+
+### 16403
+
+GPU memory alias is not supported
+
+### 16404
+
+Block '%s' does not bound
+
+### 16405
+
+This device does not support WebGL2

cocos/core/global-exports.ts

@@ -33,17 +33,26 @@ const _global = typeof window === 'undefined' ? global : window;
  * Cocos引擎的主要命名空间，引擎代码中所有的类，函数，属性和常量都在这个命名空间中定义。
  * @deprecated
  */
-export const legacyCC: Record<string, any> & {
+export const cclegacy: Record<string, any> & {
     _global: typeof globalThis;
 } = {
     _global,
 };
 
+/**
+ * @en
+ * The main namespace of Cocos engine, all engine core classes, functions, properties and constants are defined in this namespace.
+ * @zh
+ * Cocos引擎的主要命名空间，引擎代码中所有的类，函数，属性和常量都在这个命名空间中定义。
+ * @deprecated
+ */
+export const legacyCC = cclegacy;
+
 // For internal usage
-legacyCC.internal = {};
+cclegacy.internal = {};
 
 if (DEV) {
-    legacyCC._Test = {};
+    cclegacy._Test = {};
 }
 
 const engineVersion = '3.8.5';

cocos/core/index.ts

@@ -47,7 +47,7 @@ export * from './curves';
 export * from './settings';
 export * from './system';
 export * from './algorithm';
-export { legacyCC as cclegacy } from './global-exports';
+export { cclegacy } from './global-exports';
 export * from './curves/bezier';
 
 // TODO: should not include engine internal exports when module mechanism is implemented.

cocos/gfx/base/buffer.ts

@@ -46,52 +46,52 @@ export abstract class Buffer extends GFXObject {
      * @zh 缓冲使用方式。
      */
     get usage (): BufferUsage {
-        return this._usage;
+        return this._usage$;
     }
 
     /**
      * @en Memory usage of the buffer.
      * @zh 缓冲的内存使用方式。
      */
     get memUsage (): MemoryUsage {
-        return this._memUsage;
+        return this._memUsage$;
     }
 
     /**
      * @en Size of the buffer.
      * @zh 缓冲大小。
      */
     get size (): number {
-        return this._size;
+        return this._size$;
     }
 
     /**
      * @en Stride of the buffer.
      * @zh 缓冲步长。
      */
     get stride (): number {
-        return this._stride;
+        return this._stride$;
     }
 
     /**
      * @en Count of the buffer wrt. stride.
      * @zh 缓冲条目数量。
      */
     get count (): number {
-        return this._count;
+        return this._count$;
     }
 
     get flags (): BufferFlags {
-        return this._flags;
+        return this._flags$;
     }
 
-    protected _usage: BufferUsage = BufferUsageBit.NONE;
-    protected _memUsage: MemoryUsage = MemoryUsageBit.NONE;
-    protected _size = 0;
-    protected _stride = 1;
-    protected _count = 0;
-    protected _flags: BufferFlags = BufferFlagBit.NONE;
-    protected _isBufferView = false;
+    protected _usage$: BufferUsage = BufferUsageBit.NONE;
+    protected _memUsage$: MemoryUsage = MemoryUsageBit.NONE;
+    protected _size$ = 0;
+    protected _stride$ = 1;
+    protected _count$ = 0;
+    protected _flags$: BufferFlags = BufferFlagBit.NONE;
+    protected _isBufferView$ = false;
 
     constructor () {
         super(ObjectType.BUFFER);

cocos/gfx/base/command-buffer.ts

@@ -53,46 +53,46 @@ export abstract class CommandBuffer extends GFXObject {
      * @zh 命令缓冲类型。
      */
     get type (): CommandBufferType {
-        return this._type;
+        return this._type$;
     }
 
     /**
      * @en Type of the command buffer.
      * @zh 命令缓冲类型。
      */
     get queue (): Queue {
-        return this._queue!;
+        return this._queue$!;
     }
 
     /**
      * @en Number of draw calls currently recorded.
      * @zh 绘制调用次数。
      */
     get numDrawCalls (): number {
-        return this._numDrawCalls;
+        return this._numDrawCalls$;
     }
 
     /**
      * @en Number of instances currently recorded.
      * @zh 绘制 Instance 数量。
      */
     get numInstances (): number {
-        return this._numInstances;
+        return this._numInstances$;
     }
 
     /**
      * @en Number of triangles currently recorded.
      * @zh 绘制三角形数量。
      */
     get numTris (): number {
-        return this._numTris;
+        return this._numTris$;
     }
 
-    protected _queue: Queue | null = null;
-    protected _type: CommandBufferType = CommandBufferType.PRIMARY;
-    protected _numDrawCalls = 0;
-    protected _numInstances = 0;
-    protected _numTris = 0;
+    protected _queue$: Queue | null = null;
+    protected _type$: CommandBufferType = CommandBufferType.PRIMARY;
+    protected _numDrawCalls$ = 0;
+    protected _numInstances$ = 0;
+    protected _numTris$ = 0;
 
     constructor () {
         super(ObjectType.COMMAND_BUFFER);

cocos/gfx/base/define.ts

@@ -32,9 +32,7 @@ import { DescriptorSetLayout } from './descriptor-set-layout';
 
 import { Sampler } from './states/sampler';
 import { GeneralBarrier } from './states/general-barrier';
-import { TextureBarrier } from './states/texture-barrier';
-import { BufferBarrier } from './states/buffer-barrier';
-import { GCObject } from '../../core';
+import { GCObject } from '../../core/data/gc-object';
 
 interface ICopyable { copy (info: ICopyable): ICopyable; }
 
@@ -1959,28 +1957,28 @@ export class DynamicStates {
   */
 export class GFXObject extends GCObject {
     public get objectType (): ObjectType {
-        return this._objectType;
+        return this._objectType$;
     }
 
     public get objectID (): number {
-        return this._objectID;
+        return this._objectID$;
     }
 
     public get typedID (): number {
-        return this._typedID;
+        return this._typedID$;
     }
 
-    protected _objectType = ObjectType.UNKNOWN;
-    protected _objectID = 0;
-    protected _typedID = 0;
+    protected _objectType$ = ObjectType.UNKNOWN;
+    protected _objectID$ = 0;
+    protected _typedID$ = 0;
 
     private static _idTable = Array(ObjectType.COUNT).fill(1 << 16);
 
     constructor (objectType: ObjectType) {
         super();
-        this._objectType = objectType;
-        this._objectID = GFXObject._idTable[ObjectType.UNKNOWN]++;
-        this._typedID = GFXObject._idTable[objectType]++;
+        this._objectType$ = objectType;
+        this._objectID$ = GFXObject._idTable[ObjectType.UNKNOWN]++;
+        this._typedID$ = GFXObject._idTable[objectType]++;
     }
 }
 
@@ -2163,6 +2161,8 @@ export function IsPowerOf2 (x: number): boolean {
     return x > 0 && (x & (x - 1)) === 0;
 }
 
+const ceil = Math.ceil;
+
 /**
   * @en Get memory size of the specified fomat.
   * @zh 获取指定格式对应的内存大小。
@@ -2180,7 +2180,7 @@ export function FormatSize (format: Format, width: number, height: number, depth
         case Format.BC1_ALPHA:
         case Format.BC1_SRGB:
         case Format.BC1_SRGB_ALPHA:
-            return Math.ceil(width / 4) * Math.ceil(height / 4) * 8 * depth;
+            return ceil(width / 4) * ceil(height / 4) * 8 * depth;
         case Format.BC2:
         case Format.BC2_SRGB:
         case Format.BC3:
@@ -2191,76 +2191,76 @@ export function FormatSize (format: Format, width: number, height: number, depth
         case Format.BC6H_UF16:
         case Format.BC7:
         case Format.BC7_SRGB:
-            return Math.ceil(width / 4) * Math.ceil(height / 4) * 16 * depth;
+            return ceil(width / 4) * ceil(height / 4) * 16 * depth;
         case Format.BC5:
         case Format.BC5_SNORM:
-            return Math.ceil(width / 4) * Math.ceil(height / 4) * 32 * depth;
+            return ceil(width / 4) * ceil(height / 4) * 32 * depth;
 
         case Format.ETC_RGB8:
         case Format.ETC2_RGB8:
         case Format.ETC2_SRGB8:
         case Format.ETC2_RGB8_A1:
         case Format.EAC_R11:
         case Format.EAC_R11SN:
-            return Math.ceil(width / 4) * Math.ceil(height / 4) * 8 * depth;
+            return ceil(width / 4) * ceil(height / 4) * 8 * depth;
         case Format.ETC2_RGBA8:
         case Format.ETC2_SRGB8_A1:
         case Format.EAC_RG11:
         case Format.EAC_RG11SN:
-            return Math.ceil(width / 4) * Math.ceil(height / 4) * 16 * depth;
+            return ceil(width / 4) * ceil(height / 4) * 16 * depth;
 
         case Format.PVRTC_RGB2:
         case Format.PVRTC_RGBA2:
         case Format.PVRTC2_2BPP:
-            return Math.ceil(width / 8) * Math.ceil(height / 4) * 8 * depth;
+            return ceil(width / 8) * ceil(height / 4) * 8 * depth;
 
         case Format.PVRTC_RGB4:
         case Format.PVRTC_RGBA4:
         case Format.PVRTC2_4BPP:
-            return Math.ceil(width / 4) * Math.ceil(height / 4) * 8 * depth;
+            return ceil(width / 4) * ceil(height / 4) * 8 * depth;
 
         case Format.ASTC_RGBA_4X4:
         case Format.ASTC_SRGBA_4X4:
-            return Math.ceil(width / 4) * Math.ceil(height / 4) * 16 * depth;
+            return ceil(width / 4) * ceil(height / 4) * 16 * depth;
         case Format.ASTC_RGBA_5X4:
         case Format.ASTC_SRGBA_5X4:
-            return Math.ceil(width / 5) * Math.ceil(height / 4) * 16 * depth;
+            return ceil(width / 5) * ceil(height / 4) * 16 * depth;
         case Format.ASTC_RGBA_5X5:
         case Format.ASTC_SRGBA_5X5:
-            return Math.ceil(width / 5) * Math.ceil(height / 5) * 16 * depth;
+            return ceil(width / 5) * ceil(height / 5) * 16 * depth;
         case Format.ASTC_RGBA_6X5:
         case Format.ASTC_SRGBA_6X5:
-            return Math.ceil(width / 6) * Math.ceil(height / 5) * 16 * depth;
+            return ceil(width / 6) * ceil(height / 5) * 16 * depth;
         case Format.ASTC_RGBA_6X6:
         case Format.ASTC_SRGBA_6X6:
-            return Math.ceil(width / 6) * Math.ceil(height / 6) * 16 * depth;
+            return ceil(width / 6) * ceil(height / 6) * 16 * depth;
         case Format.ASTC_RGBA_8X5:
         case Format.ASTC_SRGBA_8X5:
-            return Math.ceil(width / 8) * Math.ceil(height / 5) * 16 * depth;
+            return ceil(width / 8) * ceil(height / 5) * 16 * depth;
         case Format.ASTC_RGBA_8X6:
         case Format.ASTC_SRGBA_8X6:
-            return Math.ceil(width / 8) * Math.ceil(height / 6) * 16 * depth;
+            return ceil(width / 8) * ceil(height / 6) * 16 * depth;
         case Format.ASTC_RGBA_8X8:
         case Format.ASTC_SRGBA_8X8:
-            return Math.ceil(width / 8) * Math.ceil(height / 8) * 16 * depth;
+            return ceil(width / 8) * ceil(height / 8) * 16 * depth;
         case Format.ASTC_RGBA_10X5:
         case Format.ASTC_SRGBA_10X5:
-            return Math.ceil(width / 10) * Math.ceil(height / 5) * 16 * depth;
+            return ceil(width / 10) * ceil(height / 5) * 16 * depth;
         case Format.ASTC_RGBA_10X6:
         case Format.ASTC_SRGBA_10X6:
-            return Math.ceil(width / 10) * Math.ceil(height / 6) * 16 * depth;
+            return ceil(width / 10) * ceil(height / 6) * 16 * depth;
         case Format.ASTC_RGBA_10X8:
         case Format.ASTC_SRGBA_10X8:
-            return Math.ceil(width / 10) * Math.ceil(height / 8) * 16 * depth;
+            return ceil(width / 10) * ceil(height / 8) * 16 * depth;
         case Format.ASTC_RGBA_10X10:
         case Format.ASTC_SRGBA_10X10:
-            return Math.ceil(width / 10) * Math.ceil(height / 10) * 16 * depth;
+            return ceil(width / 10) * ceil(height / 10) * 16 * depth;
         case Format.ASTC_RGBA_12X10:
         case Format.ASTC_SRGBA_12X10:
-            return Math.ceil(width / 12) * Math.ceil(height / 10) * 16 * depth;
+            return ceil(width / 12) * ceil(height / 10) * 16 * depth;
         case Format.ASTC_RGBA_12X12:
         case Format.ASTC_SRGBA_12X12:
-            return Math.ceil(width / 12) * Math.ceil(height / 12) * 16 * depth;
+            return ceil(width / 12) * ceil(height / 12) * 16 * depth;
 
         default: {
             return 0;
@@ -2471,7 +2471,7 @@ export function formatAlignment (format: Format): FormatAlignment {
 }
 
 export function alignTo (size: number, alignment: number): number {
-    return Math.ceil(size / alignment) * alignment;
+    return ceil(size / alignment) * alignment;
 }
 
 declare interface GPUTexture {}

cocos/gfx/base/descriptor-set-layout.ts

@@ -30,20 +30,20 @@ import { GFXObject, ObjectType, DescriptorSetLayoutBinding, DescriptorSetLayoutI
  */
 export abstract class DescriptorSetLayout extends GFXObject {
     get bindings (): DescriptorSetLayoutBinding[] {
-        return this._bindings;
+        return this._bindings$;
     }
 
     get bindingIndices (): number[] {
-        return this._bindingIndices;
+        return this._bindingIndices$;
     }
 
     get descriptorIndices (): number[] {
-        return this._descriptorIndices;
+        return this._descriptorIndices$;
     }
 
-    protected _bindings: DescriptorSetLayoutBinding[] = [];
-    protected _bindingIndices: number[] = [];
-    protected _descriptorIndices: number[] = [];
+    protected _bindings$: DescriptorSetLayoutBinding[] = [];
+    protected _bindingIndices$: number[] = [];
+    protected _descriptorIndices$: number[] = [];
 
     constructor () {
         super(ObjectType.DESCRIPTOR_SET_LAYOUT);