view README.QNX @ 5067:61d53410eb41

Fixed bug #859 CREATE_SUBDIRS helps a lot if browsing HTML documentation in a file browser. ALWAYS_DETAILED_SEC makes sure everything has at least the automatic documentation like function prototype and source references. STRIP_FROM_PATH allows you to include only the relevant portions of the files' paths, cleaning up both the file list and directory tree, though you need to change the path listed here to match wherever you put SDL. ALIASES avoids some warnings generated by C:\source\svn.libsdl.org\trunk\SDL\src\joystick\darwin\10.3.9-FIX\IOHIDLib.h. It seems Apple uses a few commands which are not normally supported by Doxygen. BUILTIN_STL_SUPPORT adds support for parsing code which makes use of the standard template library. There isn't a lot of C++ in SDL (some in bwindow at least), but this still seems like a good idea. TYPEDEF_HIDES_STRUCT means that for code like this: typedef struct A {int B;} C; C is documented as a structure containing B instead of a typedef mapped to A. EXTRACT_ALL, EXTRACT_PRIVATE, EXTRACT_STATIC, EXTRACT_LOCAL_METHODS, EXTRACT_ANON_NSPACES and INTERNAL_DOCS make sure that _everything_ is documented. CASE_SENSE_NAMES = NO avoids potential conflicts when building documentation on case insensitive file systems like NTFS and FAT32. WARN_NO_PARAMDOC lets you know when you have documented some, but not all, of the parameters of a function. This is useful when you're working on adding such documentation since it makes partially documented functions easier to spot. WARN_LOGFILE writes warnings to a seperate file instead of mixing them in with stdout. When not running in quiet mode, these warnings can be hard to spot without this flag. I added *.h.in and *.h.default to FILE_PATTERNS to generate documentation for config.h.in and config.h.default. RECURSIVE tells doxygen to look not only in the input directory, but also in subfolders. EXCLUDE avoids documenting things like test programs, examples and templates which need to be documented separately. I've used EXCLUDE_PATTERNS to exclude non-source subdirectories that often find their way into source folders (such as obj or .svn). EXAMPLE_PATH lists directories doxygen will search to find included example code. So far, SDL doesn't really use this feature, but I've listed some likely locations. SOURCE_BROWSER adds syntax highlighted source code to the HTML output. USE_HTAGS is nice, but not available on Windows. INLINE_SOURCES adds the body of a function to it's documentation so you can quickly see exactly what it does. ALPHABETICAL_INDEX generates an alphabetical list of all structures, functions, etc., which makes it much easier to find what you're looking for. IGNORE_PREFIX skips the SDL_ prefix when deciding which index page to place an item on so you don't have everything show up under "S". HTML_DYNAMIC_SECTIONS hides the includes/included by diagrams by default and adds JavaScript to allow the user to show and hide them by clicking a link. ENUM_VALUES_PER_LINE = 1 makes enums easier to read by placing each value on it's own line. GENERATE_TREEVIEW produces a two frame index page with a navigation tree on the left. I have LaTeX and man pages turned off to speed up doxygen, you may want to turn them back on yourself. I added _WIN32=1 to PREDEFINED to cause SDL to output documentation related to Win32 builds of SDL. Normally, doxygen gets confused since there are multiple definitions for various structures and formats that vary by platform. Without this doxygen can produce broken documentation or, if you're lucky, output documentation only for the dummy drivers, which isn't very useful. You need to pick a platform. GENERATE_TAGFILE produces a file which can be used to link other doxygen documentation to the SDL documentation. CLASS_DIAGRAMS turns on class diagrams even when dot is not available. HAVE_DOT tells doxygen to try to use dot to generate diagrams. TEMPLATE_RELATIONS and INCLUDE_GRAPH add additional diagrams to the documentation. DOT_MULTI_TARGETS speeds up dot. OUTPUT_DIRECTORY, INPUT and other paths reflect the fact that this Doxyfile is intended to process src as well as include and is being run from a separate subdirectory. Doxygen produces several temporary files while it's running and if interrupted, can leave those files behind. It's easier to clean up if there aren't a hundred or so files in the same folder. I typically run doxygen in SDL/doxy and set the output directory to '.'. Since doxygen puts it's output in subfolders by type, this keeps things pretty well organised. You could use '../doc' instead and get the same results.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 21 Jan 2011 12:57:01 -0800
parents 7c73d5b5a0d6
children
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README.QNX by Mike Gorchak <mike@malva.ua>, <lestat@i.com.ua>
Last changed at 10 Jun 2009.

QNX Photon and GF drivers are being constructed, OpenGL ES support is
    finished.  Still no 2D renderer support in GF and Photon drivers.
QNX QSA (QNX Sound Architecture) driver is ready.
QNX HID input driver is finished.

----------------------
 -- SDL QSA driver --
----------------------

   Due to QNX Sound Architecture limitations software could  not  determine
what playback channels are designed for, so some casus can be. For example,
output after testmultiaudio test utility execution:

Using audio driver: qsa
playing on device #0: ('Vortex 8820 @ fb000000 d0')...done.
playing on device #1: ('Vortex 8820 @ fb000000 d1')...done.
playing on device #2: ('i8x0 @ d800 d0')...done.
playing on device #3: ('i8x0 @ d800 d1')...done.
playing on all devices...
Open device 3 failed: QSA: snd_pcm_channel_params failed: Invalid argument

If  speakers  are  connected  to  both  audio  cards: Vortex 8820 and Intel
Integrated Audio we can hear sound playback on device #0 and devices #2, #3
only. Device #1 is an unknown PCM channel which does not produce any sound.

As for error during device #3 opening, it's caused  by QSA  software  mixer
channel, because  it can't open real hardware device #2, since it's already
opened by SDL.

After simultaneous sound playback  on  all  devices  utility testmultiaudio
stays running waiting for  sound playback  finish  on  device #1,  which is
locked up due to some Aureal Vortex 8820 driver limitations.

---------------------
 -- SDL GF driver --
---------------------

Here is an additional information about SDL GF driver:
 * 0. Introduction.
 * 1. Environment variables which SDL GF driver supports.
 * 2. Custom video modes.
 * 3. Limitations.

0. Introduction.

   SDL GF driver is a layer between  SDL  and  QNX Graphics Framework (GF).
SDL GF driver also supports OpenGL ES  through the  QNX Graphics Framework.
Hardware accelerated features which SDL can support depend on real hardware
capabilities.

1. Environment variables which GF driver supports.

   GF  driver  supports  the  following  environment  variables for  QNX GF
specific customization options:
   a) SDL_VIDEO_GF_REFRESH_RATE - refresh  rate  of  video  output  in  Hz.
      Without this environment variable declaration  SDL  controls  refresh
      rate of your display.  If this enironment  variable is set  to 0, SDL
      will control  refresh  rate  of  display,  otherwise  value  of  flag
      SDL_VIDEO_GF_REFRESH_RATE  is  used  for  all  screen  resolutions as
      refresh rate. This example will set 60Hz refresh rate as refresh rate
      for all graphics modes:

      export SDL_VIDEO_GF_REFRESH_RATE=60

2. Custom video modes.

   Since most QNX graphics drivers support GENERIC  video  modes, i.e.  you
can specify any horizontal and vertical resolution and  any  refresh  rate,
SDL GF driver uses its own fullscreen modes list, which can be  incomplete.
You can add any custom video mode, which your QNX graphics driver  supports
by  editing  file  ./src/video/qnxgf/SDL_qnxgf.c.   Custom   graphics  mode
definition looks like this:

   {0, 1024, 640, 60, NULL},   /* 1024x640 mode is 60Hz only             */

You must specify horizontal resolution as  the  second  parameter, vertical
resolution as the third one and  refresh  rate  as  the  fourth  parameter.
Please leave the first and the last parameters as 0 and NULL.  Then send me
your changes to e-mail address which is specified in  the  header  of  this
document.

3. Limitations.

   There are few limitations while using SDL GF driver:

   a) Since  GF   driver   supports   fullscreen  modes  only,   when  flag
SDL_WINDOW_FULLSCREEN is not specified, SDL GF driver will try to find  the
fullscreen graphics mode which corresponds to SDL window size. Refresh rate
will be the  lowest  available,  if  SDL_VIDEO_GF_REFRESH_RATE  environment
variable is not set.
   b) As confirmed by QSSL none of existing video  drivers  has  support of
doublescan low-resolution video modes.  So  modes  below  640x480  are  not
supported. If your video driver supports low-resolution video modes, please
add SDL_GF_LOWRESOLUTION flag to the gf_devicename array in the SDL_qnxgf.c
source file.
   c) Since  GF  framework supports hardware mouse cursor only,  you'll get
hardware mouse cursor in case of specific graphics driver supports it.

-------------------------
 -- SDL Photon driver --
-------------------------

----------------------------
 -- SDL HID input driver --
----------------------------