| Brian Paul | 99cfc4e | 2003-12-06 17:26:50 +0000 | [diff] [blame] | 1 | <HTML> |
| 2 | |
| 3 | <TITLE>Mesa glFBDev Driver</TITLE> |
| 4 | |
| 5 | <BODY text="#000000" bgcolor="#55bbff" link="#111188"> |
| 6 | |
| 7 | <center><H1>Mesa glFBDev Driver</H1></center> |
| 8 | |
| 9 | |
| 10 | <H1>1. Introduction</H1> |
| 11 | |
| 12 | <p> |
| 13 | The GLFBDev driver interface allows one to do OpenGL rendering into a |
| 14 | framebuffer managed with the Linux's fbdev interface. |
| 15 | </p> |
| 16 | |
| 17 | <p> |
| 18 | Basically, the programmer uses the fbdev functions to initialize the |
| 19 | graphics hardware and setup the framebuffer. |
| 20 | Then, using a calls to Mesa's glFBDev API functions, one can render |
| 21 | into the framebuffer with the OpenGL API functions. |
| 22 | </p> |
| 23 | |
| 24 | <p> |
| 25 | Note, only software rendering is supported; there is no hardware |
| 26 | acceleration. |
| 27 | </p> |
| 28 | |
| 29 | |
| 30 | <p> |
| 31 | The GL/glfbdev.h header file defines the glFBDev interface. |
| 32 | </p> |
| 33 | |
| 34 | <p> |
| 35 | The progs/fbdev/glfbdevtest.c demonstrates how to use the glFBDev interface. |
| 36 | </p> |
| 37 | |
| 38 | <p> |
| 39 | For more information about fbdev, see the |
| 40 | <a href="http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html" target="_parent"> |
| 41 | Framebuffer Howto</a> |
| 42 | </p> |
| 43 | |
| 44 | |
| 45 | <h1>2. Compilation</h1> |
| 46 | |
| 47 | <p> |
| 48 | To compile Mesa with support for the glFBDev interface: |
| 49 | <pre> |
| 50 | XXX todo |
| 51 | </pre> |
| 52 | |
| 53 | <p> |
| 54 | When compilation is finished look in progs/glfbdev/ for the glfbdevtest demo. |
| 55 | </p> |
| 56 | |
| 57 | </p> |
| 58 | xxx todo |
| 59 | </p> |
| 60 | |
| 61 | |
| 62 | <h1>3. Compiling and linking glFBDev programs</h1> |
| 63 | |
| 64 | <p> |
| 65 | xxx todo |
| 66 | </p> |
| 67 | |
| 68 | |
| 69 | |
| 70 | <h1>4. Running glFBDev programs</h1> |
| 71 | |
| 72 | <p> |
| 73 | First, you need to have a working fbdev environment. |
| 74 | See the |
| 75 | <a href="http://www.tldp.org/HOWTO/Framebuffer-HOWTO.html" target="_parent"> |
| 76 | Framebuffer Howto</a> for information. |
| 77 | </p> |
| 78 | |
| 79 | <p> |
| 80 | Programs must be run with root permission. |
| 81 | </p> |
| 82 | |
| 83 | </p> |
| 84 | |
| 85 | |
| 86 | |
| 87 | </body> |
| 88 | </html> |