make-texture-info

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.

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This page was not revised from the 8.1 page.
Created 2010.1.21.