dxt-decompress jest tests

src/renderware/txd/TxdParser.ts

@@ -1,11 +1,11 @@
 import { RwFile } from '../RwFile';
-import { ImageDecoder } from '../utils/ImageDecoder'
+import { ImageDecoder } from '../utils/ImageDecoder';
 import {
     D3DFormat,
     PaletteType,
     PlatformType,
     RasterFormat
-} from '../utils/ImageFormatEnums'
+} from '../utils/ImageFormatEnums';
 
 export interface RwTxd {
     textureDictionary: RwTextureDictionary,

tests/txd/dxtDecoding.ts.test.ts

@@ -0,0 +1,57 @@
+import { readFile } from 'node:fs/promises';
+import { join } from 'node:path';
+import { TxdParser, RwTxd } from '../../src';
+
+describe('txd parsing - dxtDecoding', () => {
+    let rwTxd: RwTxd;
+    let dxtJsOut:{[key: string]: number[]} = {};
+
+    beforeAll(async () => {
+        // Disable console debug for now, because of missing structures
+        const consoleDebug = console.debug;
+        console.debug = jest.fn();
+
+        const txdParser = new TxdParser(await readFile(join(__dirname, '../assets/dxtDecoding.txd')));
+        rwTxd = txdParser.parse();
+
+        dxtJsOut = JSON.parse(await readFile(join(__dirname, '../assets/dxtDecoding.dxt-js.json'), 'utf8'));
+
+        console.debug = consoleDebug;
+    });
+
+    test('texture dictionary', () => {
+        expect(rwTxd.textureDictionary).toBeDefined();
+    });
+
+    test('texture dictionary - length', () => {
+        expect(rwTxd.textureDictionary.textureCount).toBe(3);
+        expect(rwTxd.textureDictionary.textureNatives).toHaveLength(rwTxd.textureDictionary.textureCount);
+    });
+
+    test('texture dictionary - decoding dxt1', () => {
+        for (let i = 0; i < rwTxd.textureDictionary.textureNatives[0].mipmaps[0].length; i++) {
+            const dxtJsValue = dxtJsOut['DXT1'][i];
+            const calculatedValue = rwTxd.textureDictionary.textureNatives[0].mipmaps[0][i]
+            expect(calculatedValue).toBeLessThanOrEqual(dxtJsValue + 1);
+            expect(calculatedValue).toBeGreaterThanOrEqual(dxtJsValue - 1);
+        }
+    });
+
+    test('texture dictionary - decoding dxt3', () => {
+        for (let i = 0; i < rwTxd.textureDictionary.textureNatives[1].mipmaps[0].length; i++) {
+            const dxtJsValue = dxtJsOut['DXT3'][i];
+            const calculatedValue = rwTxd.textureDictionary.textureNatives[1].mipmaps[0][i]
+            expect(calculatedValue).toBeLessThanOrEqual(dxtJsValue + 1);
+            expect(calculatedValue).toBeGreaterThanOrEqual(dxtJsValue - 1);
+        }
+    });
+
+    test('texture dictionary - decoding dxt5', () => {
+        for (let i = 0; i < rwTxd.textureDictionary.textureNatives[2].mipmaps[0].length; i++) {
+            const dxtJsValue = dxtJsOut['DXT5'][i];
+            const calculatedValue = rwTxd.textureDictionary.textureNatives[2].mipmaps[0][i]
+            expect(calculatedValue).toBeLessThanOrEqual(dxtJsValue + 1);
+            expect(calculatedValue).toBeGreaterThanOrEqual(dxtJsValue - 1);
+        }
+    });
+});