mirror of
https://github.com/dart-lang/sdk
synced 2024-09-16 01:30:32 +00:00
bd58cea90b
Closes https://github.com/dart-lang/sdk/issues/45572 getContext3d should return a nullable value since getContext can return a nullable. Change-Id: Iaefff781976656db3765d526ec95305f2acfeecf Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/194503 Reviewed-by: Sigmund Cherem <sigmund@google.com> Commit-Queue: Srujan Gaddam <srujzs@google.com>
117 lines
4 KiB
Dart
117 lines
4 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:html';
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import 'dart:typed_data';
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import 'dart:web_gl';
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import 'dart:web_gl' as gl;
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import 'package:expect/minitest.dart';
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// Test that WebGL is present in dart:web_gl API
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final isRenderingContext = predicate((x) => x is RenderingContext);
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final isContextAttributes = predicate((x) => x is Map);
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main() {
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group('supported', () {
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test('supported', () {
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expect(RenderingContext.supported, isTrue);
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});
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});
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group('functional', () {
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test('unsupported fails', () {
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var canvas = new CanvasElement();
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var context = canvas.getContext3d();
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if (RenderingContext.supported) {
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expect(context, isNotNull);
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expect(context, isRenderingContext);
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} else {
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expect(context, isNull);
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}
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});
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if (RenderingContext.supported) {
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test('simple', () {
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var canvas = new CanvasElement();
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var context =
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canvas.getContext('experimental-webgl') as gl.RenderingContext?;
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expect(context, isNotNull);
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var shader = context!.createShader(gl.WebGL.VERTEX_SHADER);
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context.shaderSource(shader, 'void main() { }');
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context.compileShader(shader);
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var success =
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context.getShaderParameter(shader, gl.WebGL.COMPILE_STATUS);
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expect(success, isTrue);
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});
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test('getContext3d', () {
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var canvas = new CanvasElement();
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var context = canvas.getContext3d();
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expect(context, isNotNull);
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expect(context, isRenderingContext);
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context = canvas.getContext3d(depth: false);
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expect(context, isNotNull);
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expect(context, isRenderingContext);
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});
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test('texImage2D', () {
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var canvas = new CanvasElement();
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var context = canvas.getContext3d()!;
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var pixels = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
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context.texImage2D(1, 1, 1, 1, 10, 10, 1, 1, pixels);
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canvas = new CanvasElement();
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document.body!.children.add(canvas);
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CanvasRenderingContext2D context2 =
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canvas.getContext('2d') as CanvasRenderingContext2D;
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context.texImage2D(
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1, 1, 1, 1, 10, context2.getImageData(10, 10, 10, 10));
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context.texImage2D(1, 1, 1, 1, 10, new ImageElement());
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context.texImage2D(1, 1, 1, 1, 10, new CanvasElement());
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context.texImage2D(1, 1, 1, 1, 10, new VideoElement());
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});
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test('texSubImage2D', () {
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var canvas = new CanvasElement();
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var context = canvas.getContext3d()!;
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var pixels = new Uint8List.fromList([0, 0, 3, 255, 0, 0, 0, 0, 0, 0]);
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context.texSubImage2D(1, 1, 1, 1, 1, 10, 10, 1, pixels);
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canvas = new CanvasElement();
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document.body!.children.add(canvas);
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CanvasRenderingContext2D context2 =
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canvas.getContext('2d') as CanvasRenderingContext2D;
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context.texSubImage2D(
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1, 1, 1, 1, 1, 10, context2.getImageData(10, 10, 10, 10));
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context.texSubImage2D(1, 1, 1, 1, 1, 10, new ImageElement());
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context.texSubImage2D(1, 1, 1, 1, 1, 10, new CanvasElement());
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context.texSubImage2D(1, 1, 1, 1, 1, 10, new VideoElement());
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});
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test('getContextAttributes', () {
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var canvas = new CanvasElement();
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var context = canvas.getContext3d()!;
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var attributes = context.getContextAttributes();
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expect(attributes, isNotNull);
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expect(attributes, isContextAttributes);
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expect(attributes!['alpha'], isBoolean);
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expect(attributes['antialias'], isBoolean);
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expect(attributes['depth'], isBoolean);
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expect(attributes['premultipliedAlpha'], isBoolean);
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expect(attributes['preserveDrawingBuffer'], isBoolean);
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expect(attributes['stencil'], isBoolean);
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});
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}
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});
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}
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final isBoolean = predicate((v) => v == true || v == false);
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