Method deviceAllocDataSpace

web/src/webgpu.ts:906–922

(nbytes: number)

  // DeviceAPI
  private deviceAllocDataSpace(nbytes: number): GPUPointer {
    // allocate 0 bytes buffer as 1 bytes buffer.
    if (nbytes == 0) {
      nbytes = 1;
    }
    const buffer = tryCreateBuffer(this.device, {
      size: nbytes,
      usage: GPUBufferUsage.STORAGE | GPUBufferUsage.COPY_SRC | GPUBufferUsage.COPY_DST,
    });
    this.currAllocatedBytes += nbytes;
    this.allAllocatedBytes += nbytes;
    if (this.currAllocatedBytes > this.peakAllocatedBytes) {
      this.peakAllocatedBytes = this.currAllocatedBytes;
    }
    const ptr = this.attachToBufferTable(buffer);
    return ptr;
  }

  private deviceFreeDataSpace(ptr: GPUPointer): void {
    const idx = ptr;