shadow$provide.module$node_modules$pixi_DOT_js$lib$rendering$renderers$gl$geometry$GlGeometrySystem = function(global, require, module, exports) {
  global = require("module$node_modules$pixi_DOT_js$lib$extensions$Extensions");
  var GCManagedHash = require("module$node_modules$pixi_DOT_js$lib$utils$data$GCManagedHash"), getAttributeInfoFromFormat = require("module$node_modules$pixi_DOT_js$lib$rendering$renderers$shared$geometry$utils$getAttributeInfoFromFormat"), ensureAttributes = require("module$node_modules$pixi_DOT_js$lib$rendering$renderers$gl$shader$program$ensureAttributes"), getGlTypeFromFormat = require("module$node_modules$pixi_DOT_js$lib$rendering$renderers$gl$geometry$utils$getGlTypeFromFormat");
  "use strict";
  const topologyToGlMap = {"point-list":0, "line-list":1, "line-strip":3, "triangle-list":4, "triangle-strip":5};
  class GlGeometryGpuData {
    constructor() {
      this.vaoCache = Object.create(null);
    }
    destroy() {
      this.vaoCache = Object.create(null);
    }
  }
  class GlGeometrySystem {
    constructor(renderer) {
      this._renderer = renderer;
      this._activeVao = this._activeGeometry = null;
      this.hasInstance = this.hasVao = !0;
      this._managedGeometries = new GCManagedHash.GCManagedHash({renderer, type:"resource", onUnload:this.onGeometryUnload.bind(this), name:"glGeometry"});
    }
    contextChange() {
      const gl = this.gl = this._renderer.gl;
      if (!this._renderer.context.supports.vertexArrayObject) {
        throw Error("[PixiJS] Vertex Array Objects are not supported on this device");
      }
      this.destroyAll(!0);
      const nativeVaoExtension = this._renderer.context.extensions.vertexArrayObject;
      nativeVaoExtension && (gl.createVertexArray = () => nativeVaoExtension.createVertexArrayOES(), gl.bindVertexArray = vao => nativeVaoExtension.bindVertexArrayOES(vao), gl.deleteVertexArray = vao => nativeVaoExtension.deleteVertexArrayOES(vao));
      const nativeInstancedExtension = this._renderer.context.extensions.vertexAttribDivisorANGLE;
      nativeInstancedExtension && (gl.drawArraysInstanced = (a, b, c, d) => {
        nativeInstancedExtension.drawArraysInstancedANGLE(a, b, c, d);
      }, gl.drawElementsInstanced = (a, b, c, d, e) => {
        nativeInstancedExtension.drawElementsInstancedANGLE(a, b, c, d, e);
      }, gl.vertexAttribDivisor = (a, b) => nativeInstancedExtension.vertexAttribDivisorANGLE(a, b));
      this._activeVao = this._activeGeometry = null;
    }
    bind(geometry, program) {
      const gl = this.gl;
      this._activeGeometry = geometry;
      geometry = this.getVao(geometry, program);
      this._activeVao !== geometry && (this._activeVao = geometry, gl.bindVertexArray(geometry));
      this.updateBuffers();
    }
    resetState() {
      this.unbind();
    }
    updateBuffers() {
      const geometry = this._activeGeometry, bufferSystem = this._renderer.buffer;
      for (let i = 0; i < geometry.buffers.length; i++) {
        bufferSystem.updateBuffer(geometry.buffers[i]);
      }
      geometry._gcLastUsed = this._renderer.gc.now;
    }
    checkCompatibility(geometry, program) {
      geometry = geometry.attributes;
      program = program._attributeData;
      for (const j in program) {
        if (!geometry[j]) {
          throw Error(`shader and geometry incompatible, geometry missing the "${j}" attribute`);
        }
      }
    }
    getSignature(geometry, program) {
      const attribs = geometry.attributes;
      program = program._attributeData;
      geometry = ["g", geometry.uid];
      for (const i in attribs) {
        program[i] && geometry.push(i, program[i].location);
      }
      return geometry.join("-");
    }
    getVao(geometry, program) {
      return geometry._gpuData[this._renderer.uid]?.vaoCache[program._key] || this.initGeometryVao(geometry, program);
    }
    initGeometryVao(geometry, program, _incRefCount) {
      _incRefCount = this._renderer.gl;
      const bufferSystem = this._renderer.buffer;
      this._renderer.shader._getProgramData(program);
      this.checkCompatibility(geometry, program);
      const signature = this.getSignature(geometry, program);
      var gpuData = geometry._gpuData[this._renderer.uid];
      gpuData || (gpuData = new GlGeometryGpuData(), geometry._gpuData[this._renderer.uid] = gpuData, this._managedGeometries.add(geometry));
      gpuData = gpuData.vaoCache;
      let vao = gpuData[signature];
      if (vao) {
        return gpuData[program._key] = vao;
      }
      ensureAttributes.ensureAttributes(geometry, program._attributeData);
      const buffers = geometry.buffers;
      vao = _incRefCount.createVertexArray();
      _incRefCount.bindVertexArray(vao);
      for (let i = 0; i < buffers.length; i++) {
        bufferSystem.bind(buffers[i]);
      }
      this.activateVao(geometry, program);
      gpuData[program._key] = vao;
      gpuData[signature] = vao;
      _incRefCount.bindVertexArray(null);
      return vao;
    }
    onGeometryUnload(geometry, contextLost = !1) {
      if (geometry = geometry._gpuData[this._renderer.uid]) {
        if (geometry = geometry.vaoCache, !contextLost) {
          for (const i in geometry) {
            this._activeVao !== geometry[i] && this.resetState(), this.gl.deleteVertexArray(geometry[i]);
          }
        }
      }
    }
    destroyAll(contextLost = !1) {
      this._managedGeometries.removeAll(contextLost);
    }
    activateVao(geometry, program) {
      const gl = this._renderer.gl, bufferSystem = this._renderer.buffer, attributes = geometry.attributes;
      geometry.indexBuffer && bufferSystem.bind(geometry.indexBuffer);
      geometry = null;
      for (const j in attributes) {
        const attribute = attributes[j];
        var buffer = attribute.buffer, glBuffer = bufferSystem.getGlBuffer(buffer);
        const programAttrib = program._attributeData[j];
        if (programAttrib) {
          geometry !== glBuffer && (bufferSystem.bind(buffer), geometry = glBuffer);
          buffer = programAttrib.location;
          gl.enableVertexAttribArray(buffer);
          glBuffer = getAttributeInfoFromFormat.getAttributeInfoFromFormat(attribute.format);
          const type = getGlTypeFromFormat.getGlTypeFromFormat(attribute.format);
          "int" === programAttrib.format?.substring(1, 4) ? gl.vertexAttribIPointer(buffer, glBuffer.size, type, attribute.stride, attribute.offset) : gl.vertexAttribPointer(buffer, glBuffer.size, type, glBuffer.normalised, attribute.stride, attribute.offset);
          if (attribute.instance) {
            if (this.hasInstance) {
              gl.vertexAttribDivisor(buffer, attribute.divisor ?? 1);
            } else {
              throw Error("geometry error, GPU Instancing is not supported on this device");
            }
          }
        }
      }
    }
    draw(topology, size, start, instanceCount) {
      const {gl} = this._renderer, geometry = this._activeGeometry;
      topology = topologyToGlMap[topology || geometry.topology];
      instanceCount ?? (instanceCount = geometry.instanceCount);
      if (geometry.indexBuffer) {
        const byteSize = geometry.indexBuffer.data.BYTES_PER_ELEMENT, glType = 2 === byteSize ? gl.UNSIGNED_SHORT : gl.UNSIGNED_INT;
        1 !== instanceCount ? gl.drawElementsInstanced(topology, size || geometry.indexBuffer.data.length, glType, (start || 0) * byteSize, instanceCount) : gl.drawElements(topology, size || geometry.indexBuffer.data.length, glType, (start || 0) * byteSize);
      } else {
        1 !== instanceCount ? gl.drawArraysInstanced(topology, start || 0, size || geometry.getSize(), instanceCount) : gl.drawArrays(topology, start || 0, size || geometry.getSize());
      }
      return this;
    }
    unbind() {
      this.gl.bindVertexArray(null);
      this._activeGeometry = this._activeVao = null;
    }
    destroy() {
      this._managedGeometries.destroy();
      this._activeGeometry = this._activeVao = this.gl = this._renderer = null;
    }
  }
  GlGeometrySystem.extension = {type:[global.ExtensionType.WebGLSystem], name:"geometry"};
  exports.GlGeometryGpuData = GlGeometryGpuData;
  exports.GlGeometrySystem = GlGeometrySystem;
};

//# sourceMappingURL=module$node_modules$pixi_DOT_js$lib$rendering$renderers$gl$geometry$GlGeometrySystem.js.map