make-texture-info

Function

Package: common-graphics

Arguments: &key width height bits-per-pixel x-device-units-per-m y-device-units-per-m colors invert-p

Makes a texture-info structure, which is used along with a texture to draw a pixmap using copy-pixels-to-stream and so on.

The texture-info functionality remains largely for backward compatibility, and it is now recommended that pixmap objects be used instead since they encapsulate the separate texture, texture-info, mask-texture, and pixmap-handle objects.

A texture-info is a structure with fields (corresponding to the arguments):

• width: an integer number of pixels.
• height: an integer number of pixels.
• bits-per-pixel: either 1,4,8, or 24
• x-device-units-per-m: an integer specifying the horizontal resolution. nil means match stream.
• y-device-units-per-m: an integer specifying the vertical resolution. nil means match stream.
• colors: either a palette, or vector of rgb colors (see make-rgb), :rgb for 24 bit or nil, which means use palette of target stream.
• invert-p: a boolean; if true, inverted.

Common Graphics and IDE documentation is described in About Common Graphics and IDE documentation in cgide.htm.

The documentation is described in introduction.htm and the index is in index.htm.

Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.

Created 2000.10.5.