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48 lines
1.8 KiB
Plaintext
48 lines
1.8 KiB
Plaintext
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libpixman - Pixel manipulation library
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libpixman is a merge of libpixregion and libic.
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It also includes the slim headers.
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libpixregion - Pixel region Library
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libpixregion is a generic library for manipulating pixel regions. A
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PixRegion is a set of Y-X banded rectangles that cover the desired
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region.
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The original code for libxregion was part of the reference X server
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implementation of the X Window System. A modified copy of the code
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also exists in the Xlib client library. libpixregion was formed so
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that both the X server and client libraries could share common code
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for region manipulation.
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libpixregion is also intended to be applicable outside of the X Window
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System. The public interface of libpixregion does not depend on any
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part of the X Window System.
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libic - Image compositing library
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libic is a generic image compositing library. libic provides
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Porter/Duff compositing of images and implicit mask generation for
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geometric primitives including trapezoids, triangles, and rectangles.
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The semantics of libic are designed to precisely match the
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specification of the X Render extension. In fact, the initial
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implementation of libic was lifted from the reference implementation
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of RENDER from the X server.
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However, libic is intended to be useful independent of the X Window
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System. The public interface exported by libic does not contain any
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X-specific data structures.
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Carl Worth
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cworth@isi.edu
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Keith Packard (keithp@keithp.com) originally wrote all the original
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RENDER code that was yanked out to become libic. Keith also provided
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impetus and guidance in the development of libic.
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slim - Shared Library Interface Macros
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