Mercurial > sdl-ios-xcode
annotate README.NanoX @ 1204:f9794ee91dfc
Date: Tue, 13 Dec 2005 13:33:50 +0000
From: "alan buckley"
Subject: Patch to fix audio locking on RISC OS
When threads were not disabled on a RISC OS build
the audio mixer mutex was not created.
| author | Sam Lantinga <slouken@libsdl.org> |
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| date | Tue, 13 Dec 2005 16:40:12 +0000 |
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1 ================================================================= |
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2 Patch version 0.9 of SDL(Simple DirectMedia Layer) for Nano-X API |
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3 ================================================================= |
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4 |
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5 Authors: Hsieh-Fu Tsai, clare@setabox.com |
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6 Greg Haerr, greg@censoft.com |
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7 |
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8 This patch is against SDL version 1.2.4. |
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9 It enhances previous patch 0.8 by providing direct framebuffer |
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10 access as well as dynamic hardware pixel type support, not |
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11 requiring a compile-time option setting for different framebuffer |
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12 modes. |
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13 Tested against Microwindows version 0.89pre9. |
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14 |
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15 Older Microwindows versions |
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16 =========================== |
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17 If running on a version older than Microwindows 0.89pre9, |
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18 the following items might need to be patched in Microwindows. |
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19 |
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20 1. Patch src/nanox/client.c::GrClose() |
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21 It fixes the client side GrClose(). In the original version, |
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22 GrOpen() can only be called once. When the GrOpen() is called at |
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23 the second time, the program will terminate. In order to prevent |
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24 this situation, we need to insert "nxSocket = -1" after |
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25 "close(nxSocket)" in GrClose(). If you do not have this problem, |
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26 you may skip this step. |
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27 |
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28 2. Patch src/nanox/clientfb.c to return absolute x,y coordinates |
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29 when using GrGetWindowFBInfo(). Copy the version 0.89pre9 |
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30 of src/nanox/clientfb.c to your system, or configure |
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31 using --disable-nanox-direct-fb. |
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32 |
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33 ============= |
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34 Quick Install |
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35 ============= |
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36 |
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37 1. ./configure --disable-video-x11 --disable-video-fbcon \ |
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38 --enable-video-nanox \ |
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39 --with-nanox-pixel-type=[rgb/0888/888/565/555/332/pal] |
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40 2. make clean |
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41 3. make |
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42 4. make install (as root) |
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43 |
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44 ============ |
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45 Nitty-gritty |
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46 ============ |
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47 |
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48 --enable-nanox-direct-fb Use direct framebuffer access |
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49 --enable-nanox-debug Show debug messages |
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50 --enable-nanox-share-memory Use shared-memory to speed up |
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51 |
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52 When running multi-threaded applications using SDL, such |
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53 as SMPEG, set THREADSAFE=Y in Microwindows' config file, |
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54 to enable GrXXX() system call critical section support. |
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55 |
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56 ============================================= |
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57 Some programs can be used to test this patch. |
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58 ============================================= |
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59 |
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60 1. http://www.cs.berkeley.edu/~weimer/atris (a tetris-like game) |
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61 2. http://www.libsdl.org/projects/newvox/ |
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62 3. http://www.libsdl.org/projects/xflame/ |
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63 4. http://www.libsdl.org/projects/optimum/ |
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64 5. http://www.gnugeneration.com/software/loop/ |
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65 6: http://www.lokigames.com/development/smpeg.php3 (SMPEG version 0.4.4) |
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66 |
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67 ========= |
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68 Todo List |
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69 ========= |
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70 |
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71 1. Create hardware surface |
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72 2. Create YUVOverlay on hardware |
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73 3. Use OpenGL |
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74 4. Gamma correction |
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75 5. Hide/Change mouse pointer |
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76 6. Better window movement control with direct fb access |
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77 7. Palette handling in 8bpp could be improved |
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78 |
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79 ===================== |
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80 Supporting Institutes |
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81 ===================== |
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82 |
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83 Many thanks to go to Setabox Co., Ltd. and CML (Communication and |
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84 Multimedia Laboratory, http://www.cmlab.csie.ntu.edu.tw/) in the |
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85 Department of Computer Science and Information Engineering of |
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86 National Taiwan University for supporting this porting project. |
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87 |
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88 Century Embedded Technologies (http://embedded.censoft.com) |
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89 for this patch. |
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90 |
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91 =================== |
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92 Contact Information |
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93 =================== |
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94 |
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95 Welcome to give me any suggestion and to report bugs. |
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96 My e-mail address : clare@setabox.com or niky@cmlab.csie.ntu.edu.tw |
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97 or greg@censoft.com |