2002-07-29 19:01:38 +00:00
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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<html lang="en">
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<head>
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<title>BOINC Graphics</title>
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<meta name="generator" content="BBEdit 6.1.2">
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</head>
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<body>
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<h2>BOINC Graphics</h2>
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2002-04-30 22:22:54 +00:00
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<p>
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2002-07-29 19:01:38 +00:00
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Applications can optionally generate graphics, which are displayed
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by the core client in either its application (window) or screensaver
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(full-screen) form.
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</p>
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2002-04-30 22:22:54 +00:00
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<p>
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2002-07-29 19:01:38 +00:00
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The graphics architecture has not been completed. It may differ
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between platforms. Some possibilities:
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</p>
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2002-04-30 22:22:54 +00:00
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<ul>
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2002-07-29 19:01:38 +00:00
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<li>
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Applications render their graphics into an offscreen buffer in
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shared memory. The core client or screensaver BLITs this to the screen.
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(Problem: no X11 toolkits let you render into memory in the client. Mesa
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does, but that forces you to use OpenGL).
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</li>
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<li>
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Applications are passed a window descriptor by the core client
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or screensaver. Problem: can you do this in Windows? in X11?
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</li>
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<li>
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Applications encode their rendering in a byte stream of some
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sort (OpenGL had something like this), and send if through a pipe to the
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core client or screensaver.
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</li>
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<li>
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Applications supply their rendering code in a separate shared
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library which is dynamically linked into the core client or screensaver,
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and which communicates with the main application through shared memory.
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This is how United Devices works. Disadvantage: complex.
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</li>
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2002-04-30 22:22:54 +00:00
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</ul>
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2002-07-29 19:01:38 +00:00
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</body>
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</html>
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