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Fixes https://github.com/microsoft/vscode/issues/166158

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This commit is contained in:
Jean Pierre
2022-11-22 00:07:23 -05:00
parent a351f5758a
commit d4ee0309d9
5 changed files with 33 additions and 23 deletions
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addons/xterm-addon-webgl/src/GlyphRenderer.ts
+11 -11
View File
@@ -3,7 +3,7 @@
* @license MIT
*/
import { createProgram, PROJECTION_MATRIX } from './WebglUtils';
import { createProgram, GLTexture, PROJECTION_MATRIX } from './WebglUtils';
import { IWebGL2RenderingContext, IWebGLVertexArrayObject, IRenderModel } from './Types';
import { NULL_CELL_CODE } from 'common/buffer/Constants';
import { Terminal } from 'xterm';
@@ -94,7 +94,7 @@ export class GlyphRenderer extends Disposable {
private readonly _projectionLocation: WebGLUniformLocation;
private readonly _resolutionLocation: WebGLUniformLocation;
private readonly _textureLocation: WebGLUniformLocation;
private readonly _atlasTextures: WebGLTexture[];
private readonly _atlasTextures: GLTexture[];
private readonly _attributesBuffer: WebGLBuffer;
private _atlas: ITextureAtlas | undefined;
@@ -190,14 +190,14 @@ export class GlyphRenderer extends Disposable {
// is ever drawn it will show characters as red rectangles.
this._atlasTextures = [];
for (let i = 0; i < TextureAtlas.maxAtlasPages; i++) {
const texture = throwIfFalsy(gl.createTexture());
this.register(toDisposable(() => gl.deleteTexture(texture)));
const glTexture = new GLTexture(throwIfFalsy(gl.createTexture()));
this.register(toDisposable(() => gl.deleteTexture(glTexture.texture)));
gl.activeTexture(gl.TEXTURE0 + i);
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.bindTexture(gl.TEXTURE_2D, glTexture.texture);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array([255, 0, 0, 255]));
this._atlasTextures[i] = texture;
this._atlasTextures[i] = glTexture;
}
// Allow drawing of transparent texture
@@ -348,8 +348,7 @@ export class GlyphRenderer extends Disposable {
// Bind the atlas page texture if they have changed
for (let i = 0; i < this._atlas.pages.length; i++) {
if (this._atlas.pages[i].hasCanvasChanged) {
this._atlas.pages[i].hasCanvasChanged = false;
if (this._atlas.pages[i].dirtyId !== this._atlasTextures[i].dirtyId) {
this._bindAtlasPageTexture(gl, this._atlas, i);
}
}
@@ -360,18 +359,19 @@ export class GlyphRenderer extends Disposable {
public setAtlas(atlas: ITextureAtlas): void {
this._atlas = atlas;
for (let i = 0; i < atlas.pages.length; i++) {
this._bindAtlasPageTexture(this._gl, atlas, i);
for (const glTexture of this._atlasTextures) {
glTexture.dirtyId = -1;
}
}
private _bindAtlasPageTexture(gl: IWebGL2RenderingContext, atlas: ITextureAtlas, i: number): void {
gl.activeTexture(gl.TEXTURE0 + i);
gl.bindTexture(gl.TEXTURE_2D, this._atlasTextures[i]);
gl.bindTexture(gl.TEXTURE_2D, this._atlasTextures[i].texture);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, atlas.pages[i].canvas);
gl.generateMipmap(gl.TEXTURE_2D);
this._atlasTextures[i].dirtyId = atlas.pages[i].dirtyId;
}
public setDimensions(dimensions: IRenderDimensions): void {
addons/xterm-addon-webgl/src/WebglUtils.ts
+10
View File
@@ -51,3 +51,13 @@ export function expandFloat32Array(source: Float32Array, max: number): Float32Ar
}
return newArray;
}
export class GLTexture {
public texture: WebGLTexture;
public dirtyId: number;
constructor(texture: WebGLTexture) {
this.texture = texture;
this.dirtyId = -1;
}
}