/// <summary>
/// Allocates a block of memory and returns a pointer to it.
/// </summary>
/// <param name="sizeInBytes">The ammount of memory to allocate</param>
/// <returns>A pointer to the new memory</returns>
public static DevicePtr AllocRaw(uint sizeInBytes)
{
DevicePtr result = new DevicePtr();
CudaUtil.Call(CudaMem.cuMemAlloc(out result.ptr, sizeInBytes));
return(result);
}
/// <summary>
/// Allocates a block of memory sized to hold a 1D array and returns a pointer to it.
/// </summary>
/// <param name="elemSizeBytes">The size of each array element in bytes</param>
/// <param name="width">The number of elements to allocate memory for</param>
/// <returns>A pointer to the array</returns>
public static DeviceBuffer Alloc(int elemSizeBytes, int width)
{
DeviceBuffer result = new DeviceBuffer();
result.sizeInBytes = (uint)elemSizeBytes * (uint)width;
CudaUtil.Call(CudaMem.cuMemAlloc(out result.ptr.ptr, result.sizeInBytes));
return(result);
}
/// <summary>
/// Allocates a 2D block of memory, and returns a pointer pointing to it. Rows are NOT padded,
/// and may not meet the hardware's alignment requirements.
/// </summary>
/// <param name="widthInBytes">The number of bytes to allocate for each row.</param>
/// <param name="height">The number of rows to allocate</param>
/// <returns>A pointer to the new block</returns>
public static DevicePtr2D AllocRaw(uint widthInBytes, uint height)
{
DevicePtr2D result = new DevicePtr2D();
result.pitch = widthInBytes;
CudaUtil.Call(CudaMem.cuMemAlloc(out result.ptr, widthInBytes * height));
return(result);
}