sdfsdfs

node_modules/pixi.js/lib/rendering/renderers/shared/shader/Shader.mjs

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+import EventEmitter from 'eventemitter3';
+import { GlProgram } from '../../gl/shader/GlProgram.mjs';
+import { BindGroup } from '../../gpu/shader/BindGroup.mjs';
+import { GpuProgram } from '../../gpu/shader/GpuProgram.mjs';
+import { RendererType } from '../../types.mjs';
+import { UniformGroup } from './UniformGroup.mjs';
+
+"use strict";
+class Shader extends EventEmitter {
+  constructor(options) {
+    super();
+    /**
+     * A record of the uniform groups and resources used by the shader.
+     * This is used by WebGL renderer to sync uniform data.
+     * @internal
+     * @ignore
+     */
+    this._uniformBindMap = /* @__PURE__ */ Object.create(null);
+    this._ownedBindGroups = [];
+    let {
+      gpuProgram,
+      glProgram,
+      groups,
+      resources,
+      compatibleRenderers,
+      groupMap
+    } = options;
+    this.gpuProgram = gpuProgram;
+    this.glProgram = glProgram;
+    if (compatibleRenderers === void 0) {
+      compatibleRenderers = 0;
+      if (gpuProgram)
+        compatibleRenderers |= RendererType.WEBGPU;
+      if (glProgram)
+        compatibleRenderers |= RendererType.WEBGL;
+    }
+    this.compatibleRenderers = compatibleRenderers;
+    const nameHash = {};
+    if (!resources && !groups) {
+      resources = {};
+    }
+    if (resources && groups) {
+      throw new Error("[Shader] Cannot have both resources and groups");
+    } else if (!gpuProgram && groups && !groupMap) {
+      throw new Error("[Shader] No group map or WebGPU shader provided - consider using resources instead.");
+    } else if (!gpuProgram && groups && groupMap) {
+      for (const i in groupMap) {
+        for (const j in groupMap[i]) {
+          const uniformName = groupMap[i][j];
+          nameHash[uniformName] = {
+            group: i,
+            binding: j,
+            name: uniformName
+          };
+        }
+      }
+    } else if (gpuProgram && groups && !groupMap) {
+      const groupData = gpuProgram.structsAndGroups.groups;
+      groupMap = {};
+      groupData.forEach((data) => {
+        groupMap[data.group] = groupMap[data.group] || {};
+        groupMap[data.group][data.binding] = data.name;
+        nameHash[data.name] = data;
+      });
+    } else if (resources) {
+      groups = {};
+      groupMap = {};
+      if (gpuProgram) {
+        const groupData = gpuProgram.structsAndGroups.groups;
+        groupData.forEach((data) => {
+          groupMap[data.group] = groupMap[data.group] || {};
+          groupMap[data.group][data.binding] = data.name;
+          nameHash[data.name] = data;
+        });
+      }
+      let bindTick = 0;
+      for (const i in resources) {
+        if (nameHash[i])
+          continue;
+        if (!groups[99]) {
+          groups[99] = new BindGroup();
+          this._ownedBindGroups.push(groups[99]);
+        }
+        nameHash[i] = { group: 99, binding: bindTick, name: i };
+        groupMap[99] = groupMap[99] || {};
+        groupMap[99][bindTick] = i;
+        bindTick++;
+      }
+      for (const i in resources) {
+        const name = i;
+        let value = resources[i];
+        if (!value.source && !value._resourceType) {
+          value = new UniformGroup(value);
+        }
+        const data = nameHash[name];
+        if (data) {
+          if (!groups[data.group]) {
+            groups[data.group] = new BindGroup();
+            this._ownedBindGroups.push(groups[data.group]);
+          }
+          groups[data.group].setResource(value, data.binding);
+        }
+      }
+    }
+    this.groups = groups;
+    this._uniformBindMap = groupMap;
+    this.resources = this._buildResourceAccessor(groups, nameHash);
+  }
+  /**
+   * Sometimes a resource group will be provided later (for example global uniforms)
+   * In such cases, this method can be used to let the shader know about the group.
+   * @param name - the name of the resource group
+   * @param groupIndex - the index of the group (should match the webGPU shader group location)
+   * @param bindIndex - the index of the bind point (should match the webGPU shader bind point)
+   */
+  addResource(name, groupIndex, bindIndex) {
+    var _a, _b;
+    (_a = this._uniformBindMap)[groupIndex] || (_a[groupIndex] = {});
+    (_b = this._uniformBindMap[groupIndex])[bindIndex] || (_b[bindIndex] = name);
+    if (!this.groups[groupIndex]) {
+      this.groups[groupIndex] = new BindGroup();
+      this._ownedBindGroups.push(this.groups[groupIndex]);
+    }
+  }
+  _buildResourceAccessor(groups, nameHash) {
+    const uniformsOut = {};
+    for (const i in nameHash) {
+      const data = nameHash[i];
+      Object.defineProperty(uniformsOut, data.name, {
+        get() {
+          return groups[data.group].getResource(data.binding);
+        },
+        set(value) {
+          groups[data.group].setResource(value, data.binding);
+        }
+      });
+    }
+    return uniformsOut;
+  }
+  /**
+   * Use to destroy the shader when its not longer needed.
+   * It will destroy the resources and remove listeners.
+   * @param destroyPrograms - if the programs should be destroyed as well.
+   * Make sure its not being used by other shaders!
+   */
+  destroy(destroyPrograms = false) {
+    this.emit("destroy", this);
+    if (destroyPrograms) {
+      this.gpuProgram?.destroy();
+      this.glProgram?.destroy();
+    }
+    this.gpuProgram = null;
+    this.glProgram = null;
+    this.removeAllListeners();
+    this._uniformBindMap = null;
+    this._ownedBindGroups.forEach((bindGroup) => {
+      bindGroup.destroy();
+    });
+    this._ownedBindGroups = null;
+    this.resources = null;
+    this.groups = null;
+  }
+  static from(options) {
+    const { gpu, gl, ...rest } = options;
+    let gpuProgram;
+    let glProgram;
+    if (gpu) {
+      gpuProgram = GpuProgram.from(gpu);
+    }
+    if (gl) {
+      glProgram = GlProgram.from(gl);
+    }
+    return new Shader({
+      gpuProgram,
+      glProgram,
+      ...rest
+    });
+  }
+}
+
+export { Shader };
+//# sourceMappingURL=Shader.mjs.map