MAKEFOURCC macro

Description

A macro to format and load texture.

Each parameter can represent one of the following naming conventions:

• A = Alpha
• R = Red
• G = Green
• B = Blue
• X = Unused Bits
• P = Palette
• L = Luminance
• U = dU coordinate for BumpMap
• V = dV coordinate for BumpMap
• S = Stencil
• D = Depth (e.g. Z or W buffer)
• C = Computed from other channels (typically on certain read operations)

Furthermore, the order of the pieces are from MSB first; hence D3DFMT_A8L8 indicates that the high byte of this two byte format is alpha.

D16 indicates:

• An integer 16-bit value.
• An app-lockable surface.

All Depth/Stencil formats except D3DFMT_D16_LOCKABLE indicate:

• No particular bit ordering per pixel, and
• Are not app lockable, and
• The driver is allowed to consume more than the indicated number of bits per Depth channel (but not Stencil channel).

Parameters

ch0

Any of the defined naming conventions.

ch1

Any of the defined naming conventions.

ch2

Any of the defined naming conventions.

ch3

Any of the defined naming conventions.

Remarks

See also