| 1 | import { MSAA_QUALITY } from '@pixi/constants';
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| 2 | import { ExtensionType, extensions } from '@pixi/extensions';
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| 3 |
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| 4 | class MultisampleSystem {
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| 5 | constructor(renderer) {
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| 6 | this.renderer = renderer;
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| 7 | }
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| 8 | contextChange(gl) {
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| 9 | let samples;
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| 10 | if (this.renderer.context.webGLVersion === 1) {
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| 11 | const framebuffer = gl.getParameter(gl.FRAMEBUFFER_BINDING);
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| 12 | gl.bindFramebuffer(gl.FRAMEBUFFER, null);
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| 13 | samples = gl.getParameter(gl.SAMPLES);
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| 14 | gl.bindFramebuffer(gl.FRAMEBUFFER, framebuffer);
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| 15 | } else {
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| 16 | const framebuffer = gl.getParameter(gl.DRAW_FRAMEBUFFER_BINDING);
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| 17 | gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, null);
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| 18 | samples = gl.getParameter(gl.SAMPLES);
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| 19 | gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, framebuffer);
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| 20 | }
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| 21 | if (samples >= MSAA_QUALITY.HIGH) {
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| 22 | this.multisample = MSAA_QUALITY.HIGH;
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| 23 | } else if (samples >= MSAA_QUALITY.MEDIUM) {
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| 24 | this.multisample = MSAA_QUALITY.MEDIUM;
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| 25 | } else if (samples >= MSAA_QUALITY.LOW) {
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| 26 | this.multisample = MSAA_QUALITY.LOW;
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| 27 | } else {
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| 28 | this.multisample = MSAA_QUALITY.NONE;
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| 29 | }
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| 30 | }
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| 31 | destroy() {
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| 32 | }
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| 33 | }
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| 34 | MultisampleSystem.extension = {
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| 35 | type: ExtensionType.RendererSystem,
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| 36 | name: "_multisample"
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| 37 | };
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| 38 | extensions.add(MultisampleSystem);
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| 39 |
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| 40 | export { MultisampleSystem };
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| 41 |
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