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feat: iswebGl2 fixed #202

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merged 3 commits into from
Oct 9, 2024
Merged

feat: iswebGl2 fixed #202

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3c84970
feat: iswebGl2 fixed
Oct 9, 2024
b9963b8
fix: ts error fixed
Oct 9, 2024
4aca363
fix: namespace change
Oct 9, 2024
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17 changes: 11 additions & 6 deletions src/webgl/utils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -24,18 +24,23 @@ import type { Sampler_GL } from './Sampler';
import type { Texture_GL } from './Texture';

// @see https://github.com/visgl/luma.gl/blob/30a1039573576d73641de7c1ba222e8992eb526e/modules/gltools/src/utils/webgl-checks.ts#L22
let isWebGL2Flag;
export function isWebGL2(
gl: WebGL2RenderingContext | WebGLRenderingContext,
): gl is WebGL2RenderingContext {
if (
typeof WebGL2RenderingContext !== 'undefined' &&
gl instanceof WebGL2RenderingContext
) {
return true;

if(isWebGL2Flag !== undefined) {
return isWebGL2Flag;
}
if (typeof WebGL2RenderingContext !== 'undefined' &&
gl instanceof WebGL2RenderingContext) {
isWebGL2Flag = true;
return true;
}
// Look for debug contexts, headless gl etc
// @ts-ignore
return Boolean(gl && gl._version === 2);
isWebGL2Flag = Boolean(gl && gl._version === 2);
return isWebGL2Flag;
}

export function isTextureFormatCompressed(fmt: Format): boolean {
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