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microsoft
GitHub Repository: microsoft/vscode
 Path: blob/main/src/vs/editor/test/browser/view/minimapCharRenderer.test.ts
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/*---------------------------------------------------------------------------------------------

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 *  Copyright (c) Microsoft Corporation. All rights reserved.

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 *  Licensed under the MIT License. See License.txt in the project root for license information.

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 *--------------------------------------------------------------------------------------------*/

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import assert from 'assert';

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import { ensureNoDisposablesAreLeakedInTestSuite } from '../../../../base/test/common/utils.js';

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import { MinimapCharRendererFactory } from '../../../browser/viewParts/minimap/minimapCharRendererFactory.js';

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import { Constants } from '../../../browser/viewParts/minimap/minimapCharSheet.js';

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import { RGBA8 } from '../../../common/core/misc/rgba.js';

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suite('MinimapCharRenderer', () => {

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	ensureNoDisposablesAreLeakedInTestSuite();

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	const sampleD = [

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		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xD0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xD0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xD0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x0D, 0xFF, 0xFF, 0xFF, 0xA3, 0xFF, 0xFF, 0xFF, 0xF3, 0xFF, 0xFF, 0xFF, 0xE5, 0xFF, 0xFF, 0xFF, 0x5E, 0xFF, 0xFF, 0xFF, 0xD0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xA4, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0xFF, 0xFF, 0xFF, 0xFC, 0xFF, 0xFF, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0xFF, 0xFF, 0xFF, 0x10, 0xFF, 0xFF, 0xFF, 0xFB, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x94, 0xFF, 0xFF, 0xFF, 0x02, 0xFF, 0xFF, 0xFF, 0x6A, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0xFF, 0xFF, 0xFF, 0x3B, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x22, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x03, 0xFF, 0xFF, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0xFF, 0xFF, 0xFF, 0x47, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xD6, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0xFF, 0xFF, 0xFF, 0x31, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xE7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0xFF, 0xFF, 0xFF, 0x0E, 0xFF, 0xFF, 0xFF, 0xF7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x69, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x3D, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x9B, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF9, 0xFF, 0xFF, 0xFF, 0xB9, 0xFF, 0xFF, 0xFF, 0xF0, 0xFF, 0xFF, 0xFF, 0xF7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x0E, 0xFF, 0xFF, 0xFF, 0xA7, 0xFF, 0xFF, 0xFF, 0xF5, 0xFF, 0xFF, 0xFF, 0xE8, 0xFF, 0xFF, 0xFF, 0x71, 0xFF, 0xFF, 0xFF, 0xD0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x78, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

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		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

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	];

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	function getSampleData() {

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		const charCode = 'd'.charCodeAt(0);

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		const result = new Uint8ClampedArray(Constants.SAMPLED_CHAR_HEIGHT * Constants.SAMPLED_CHAR_WIDTH * Constants.RGBA_CHANNELS_CNT * Constants.CHAR_COUNT);

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		for (let i = 0; i < result.length; i++) {

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			result[i] = 0;

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		}

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		const rowWidth = Constants.SAMPLED_CHAR_WIDTH * Constants.RGBA_CHANNELS_CNT * Constants.CHAR_COUNT;

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		const chIndex = charCode - Constants.START_CH_CODE;

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		let globalOutputOffset = chIndex * Constants.SAMPLED_CHAR_WIDTH * Constants.RGBA_CHANNELS_CNT;

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		let inputOffset = 0;

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		for (let i = 0; i < Constants.SAMPLED_CHAR_HEIGHT; i++) {

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			let outputOffset = globalOutputOffset;

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			for (let j = 0; j < Constants.SAMPLED_CHAR_WIDTH; j++) {

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				for (let channel = 0; channel < Constants.RGBA_CHANNELS_CNT; channel++) {

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					result[outputOffset] = sampleD[inputOffset];

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					inputOffset++;

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					outputOffset++;

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				}

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			}

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			globalOutputOffset += rowWidth;

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		}

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		return result;

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	}

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	function createFakeImageData(width: number, height: number): ImageData {

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		return {

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			colorSpace: 'srgb',

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			width: width,

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			height: height,

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			data: new Uint8ClampedArray(width * height * Constants.RGBA_CHANNELS_CNT)

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		};

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	}

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	test('letter d @ 2x', () => {

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		const sampleData = getSampleData();

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		const renderer = MinimapCharRendererFactory.createFromSampleData(sampleData, 2);

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		const background = new RGBA8(0, 0, 0, 255);

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		const color = new RGBA8(255, 255, 255, 255);

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		const imageData = createFakeImageData(Constants.BASE_CHAR_WIDTH * 2, Constants.BASE_CHAR_HEIGHT * 2);

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		// set the background color

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		for (let i = 0, len = imageData.data.length / 4; i < len; i++) {

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			imageData.data[4 * i + 0] = background.r;

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			imageData.data[4 * i + 1] = background.g;

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			imageData.data[4 * i + 2] = background.b;

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			imageData.data[4 * i + 3] = 255;

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		}

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		renderer.renderChar(imageData, 0, 0, 'd'.charCodeAt(0), color, 255, background, 255, 2, false, false);

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		const actual: number[] = [];

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		for (let i = 0; i < imageData.data.length; i++) {

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			actual[i] = imageData.data[i];

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		}

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		assert.deepStrictEqual(actual, [

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			0x2D, 0x2D, 0x2D, 0xFF, 0xAC, 0xAC, 0xAC, 0xFF,

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			0xC6, 0xC6, 0xC6, 0xFF, 0xC8, 0xC8, 0xC8, 0xFF,

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			0xC0, 0xC0, 0xC0, 0xFF, 0xCB, 0xCB, 0xCB, 0xFF,

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			0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0xFF,

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		]);

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	});

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	test('letter d @ 1x', () => {

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		const sampleData = getSampleData();

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		const renderer = MinimapCharRendererFactory.createFromSampleData(sampleData, 1);

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		const background = new RGBA8(0, 0, 0, 255);

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		const color = new RGBA8(255, 255, 255, 255);

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		const imageData = createFakeImageData(Constants.BASE_CHAR_WIDTH, Constants.BASE_CHAR_HEIGHT);

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		// set the background color

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		for (let i = 0, len = imageData.data.length / 4; i < len; i++) {

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			imageData.data[4 * i + 0] = background.r;

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			imageData.data[4 * i + 1] = background.g;

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			imageData.data[4 * i + 2] = background.b;

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			imageData.data[4 * i + 3] = 255;

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		}

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		renderer.renderChar(imageData, 0, 0, 'd'.charCodeAt(0), color, 255, background, 255, 1, false, false);

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		const actual: number[] = [];

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		for (let i = 0; i < imageData.data.length; i++) {

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			actual[i] = imageData.data[i];

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		}

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		assert.deepStrictEqual(actual, [

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			0xCB, 0xCB, 0xCB, 0xFF,

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			0x81, 0x81, 0x81, 0xFF,

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		]);

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	});

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});

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