@animech-public/playcanvas/build/playcanvas.dbg/src/platform/graphics/null/null-graphics-device.js

PlayCanvas WebGL game engine

import { Debug } from '../../../core/debug.js';
import { DEVICETYPE_NULL, PIXELFORMAT_RGBA8 } from '../constants.js';
import { GraphicsDevice } from '../graphics-device.js';
import { NullIndexBuffer } from './null-index-buffer.js';
import { NullRenderTarget } from './null-render-target.js';
import { NullShader } from './null-shader.js';
import { NullTexture } from './null-texture.js';
import { NullVertexBuffer } from './null-vertex-buffer.js';

class NullGraphicsDevice extends GraphicsDevice {
  constructor(canvas, options = {}) {
    super(canvas, options);
    options = this.initOptions;
    this.isNull = true;
    this._deviceType = DEVICETYPE_NULL;
    this.samples = 1;
    Debug.log('NullGraphicsDevice');
  }
  destroy() {
    super.destroy();
  }
  initDeviceCaps() {
    this.disableParticleSystem = true;
    this.precision = 'highp';
    this.maxPrecision = 'highp';
    this.maxSamples = 4;
    this.maxTextures = 16;
    this.maxTextureSize = 4096;
    this.maxCubeMapSize = 4096;
    this.maxVolumeSize = 4096;
    this.maxColorAttachments = 8;
    this.maxPixelRatio = 1;
    this.maxAnisotropy = 16;
    this.supportsInstancing = true;
    this.supportsUniformBuffers = false;
    this.supportsVolumeTextures = true;
    this.supportsBoneTextures = true;
    this.supportsMorphTargetTexturesCore = true;
    this.supportsAreaLights = true;
    this.supportsDepthShadow = true;
    this.supportsGpuParticles = false;
    this.supportsMrt = true;
    this.extUintElement = true;
    this.extTextureFloat = true;
    this.textureFloatRenderable = true;
    this.extTextureHalfFloat = true;
    this.textureHalfFloatRenderable = true;
    this.textureHalfFloatUpdatable = true;
    this.boneLimit = 1024;
    this.supportsImageBitmap = true;
    this.extStandardDerivatives = true;
    this.extBlendMinmax = true;
    this.areaLightLutFormat = PIXELFORMAT_RGBA8;
    this.supportsTextureFetch = true;
  }
  postInit() {
    super.postInit();
  }
  frameStart() {
    super.frameStart();
  }
  frameEnd() {
    super.frameEnd();
  }
  updateBegin() {}
  updateEnd() {}
  readPixels(x, y, w, h, pixels) {}
  createVertexBufferImpl(vertexBuffer, format) {
    return new NullVertexBuffer(vertexBuffer, format);
  }
  createIndexBufferImpl(indexBuffer) {
    return new NullIndexBuffer(indexBuffer);
  }
  createShaderImpl(shader) {
    return new NullShader(shader);
  }
  createTextureImpl(texture) {
    return new NullTexture(texture);
  }
  createRenderTargetImpl(renderTarget) {
    return new NullRenderTarget(renderTarget);
  }
  draw(primitive, numInstances = 1, keepBuffers) {}
  setShader(shader, asyncCompile = false) {}
  setBlendState(blendState) {}
  setDepthState(depthState) {}
  setStencilState(stencilFront, stencilBack) {}
  setBlendColor(r, g, b, a) {}
  setCullMode(cullMode) {}
  setAlphaToCoverage(state) {}
  initializeContextCaches() {
    super.initializeContextCaches();
  }
  clear(options) {}
  setViewport(x, y, w, h) {}
  setScissor(x, y, w, h) {}
  copyRenderTarget(source, dest, color, depth) {
    return true;
  }
  pushMarker(name) {}
  popMarker() {}
}

export { NullGraphicsDevice };