sdfsdfs

node_modules/pixi.js/lib/rendering/renderers/gpu/buffer/GpuBufferSystem.mjs

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+import { ExtensionType } from '../../../../extensions/Extensions.mjs';
+import { fastCopy } from '../../shared/buffer/utils/fastCopy.mjs';
+
+"use strict";
+class GpuBufferSystem {
+  constructor() {
+    this._gpuBuffers = /* @__PURE__ */ Object.create(null);
+    this._managedBuffers = [];
+  }
+  contextChange(gpu) {
+    this._gpu = gpu;
+  }
+  getGPUBuffer(buffer) {
+    return this._gpuBuffers[buffer.uid] || this.createGPUBuffer(buffer);
+  }
+  updateBuffer(buffer) {
+    const gpuBuffer = this._gpuBuffers[buffer.uid] || this.createGPUBuffer(buffer);
+    const data = buffer.data;
+    if (buffer._updateID && data) {
+      buffer._updateID = 0;
+      this._gpu.device.queue.writeBuffer(
+        gpuBuffer,
+        0,
+        data.buffer,
+        0,
+        // round to the nearest 4 bytes
+        (buffer._updateSize || data.byteLength) + 3 & ~3
+      );
+    }
+    return gpuBuffer;
+  }
+  /** dispose all WebGL resources of all managed buffers */
+  destroyAll() {
+    for (const id in this._gpuBuffers) {
+      this._gpuBuffers[id].destroy();
+    }
+    this._gpuBuffers = {};
+  }
+  createGPUBuffer(buffer) {
+    if (!this._gpuBuffers[buffer.uid]) {
+      buffer.on("update", this.updateBuffer, this);
+      buffer.on("change", this.onBufferChange, this);
+      buffer.on("destroy", this.onBufferDestroy, this);
+      this._managedBuffers.push(buffer);
+    }
+    const gpuBuffer = this._gpu.device.createBuffer(buffer.descriptor);
+    buffer._updateID = 0;
+    if (buffer.data) {
+      fastCopy(buffer.data.buffer, gpuBuffer.getMappedRange());
+      gpuBuffer.unmap();
+    }
+    this._gpuBuffers[buffer.uid] = gpuBuffer;
+    return gpuBuffer;
+  }
+  onBufferChange(buffer) {
+    const gpuBuffer = this._gpuBuffers[buffer.uid];
+    gpuBuffer.destroy();
+    buffer._updateID = 0;
+    this._gpuBuffers[buffer.uid] = this.createGPUBuffer(buffer);
+  }
+  /**
+   * Disposes buffer
+   * @param buffer - buffer with data
+   */
+  onBufferDestroy(buffer) {
+    this._managedBuffers.splice(this._managedBuffers.indexOf(buffer), 1);
+    this._destroyBuffer(buffer);
+  }
+  destroy() {
+    this._managedBuffers.forEach((buffer) => this._destroyBuffer(buffer));
+    this._managedBuffers = null;
+    this._gpuBuffers = null;
+  }
+  _destroyBuffer(buffer) {
+    const gpuBuffer = this._gpuBuffers[buffer.uid];
+    gpuBuffer.destroy();
+    buffer.off("update", this.updateBuffer, this);
+    buffer.off("change", this.onBufferChange, this);
+    buffer.off("destroy", this.onBufferDestroy, this);
+    this._gpuBuffers[buffer.uid] = null;
+  }
+}
+/** @ignore */
+GpuBufferSystem.extension = {
+  type: [
+    ExtensionType.WebGPUSystem
+  ],
+  name: "buffer"
+};
+
+export { GpuBufferSystem };
+//# sourceMappingURL=GpuBufferSystem.mjs.map