Concurrency::direct3d Namespace

Article
08/03/2021

The direct3d namespace provides functions that support D3D interoperability. It lets you use D3D resources for compute in AMP code. It also allows use of resources created in AMP in D3D code, without creating redundant intermediate copies. You can incrementally accelerate the compute intensive sections of your DirectX applications by using C++ AMP, and use the D3D API on data produced from AMP computations.

Syntax

namespace direct3d;

Members

Classes

Name	Description
scoped_d3d_access_lock Class	An RAII wrapper for a D3D access lock on an `accelerator_view` object.

Structures

Name	Description
adopt_d3d_access_lock_t Structure	Tag type to indicate the D3D access lock should be adopted rather than acquired.

Functions

Name	Description
abs	Returns the absolute value of the argument
clamp	Overloaded. Clamps _X to the specified _Min and _Max range
countbits	Counts the number of set bits in _X
create_accelerator_view	Creates an accelerator_view Class from a pointer to a Direct3D device interface
d3d_access_lock	Acquires a lock on an accelerator_view to safely perform D3D operations on resources shared with the accelerator_view
d3d_access_try_lock	Attempt to acquire the D3D access lock on an accelerator_view without blocking.
d3d_access_unlock	Release the D3D access lock on the given accelerator_view.
firstbithigh	Gets the location of the first set bit in _X, starting from the highest order bit and working downward
firstbitlow	Gets the location of the first set bit in _X, starting from the lowest order bit and working upward
get_buffer	Get the D3D buffer interface underlying an array.
imax	Compares two values, returning the value that's greater.
imin	Compares two values, returning the value that's smaller.
is_timeout_disabled	Returns a boolean flag indicating if timeout is disabled for the specified accelerator_view.
mad	Overloaded. Performs an arithmetic multiply/add operation on three arguments: _X * _Y + _Z
make_array	Create an array from a D3D buffer interface pointer.
noise	Generates a random value by using the Perlin noise algorithm
radians	Converts _X from degrees to radians
rcp	Calculates a fast, approximate reciprocal of the argument
reversebits	Reverses the order of the bits in _X
saturate	Clamps _X within the range of 0 to 1
sign	Overloaded. Returns the sign of the argument
smoothstep	Returns a smooth Hermite interpolation between 0 and 1, if _X is in the range [_Min, _Max].
step	Compares two values, returning 0 or 1 based on which value is greater
umax	Compares two unsigned values, returning the value that's greater.
umin	Compares two unsigned values, returning the value that's smaller.

Requirements

Header: amp.h

Namespace: Concurrency