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Date: Fri, 15 Aug 2003 09:13:59 +0300
From: "Mike Gorchak" Subject: Patches for tests and QNX6 Here more fixes for the QNX6 in sdlqnx.diff file: - Spellchecked README.QNX (thanks to Julian Kinraid) - Fixed bugs in fullscreen mode: window region wasn't on top by default, so \ it caused some artifacts to be appeared on the screen, prevent window conten\ ts default filler in Photon while in fullscreen mode, it damages the screen. - Added support for the SDL_VIDEO_WINDOW_POS, SDL_VIDEO_CENTERED env variabl\ es. - Some minor code restructurization.
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README by Mike Gorchak <mike@malva.ua>, <lestat@i.com.ua> | ||
Last changed at 29 Jul 2003. | ||
Last changed at 12 Aug 2003. | ||
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========================================================================= | ||
====================================================================== | ||
OpenGL: | ||
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OpenGL in window mode works well and stable, in fullscreen | ||
mode too, but fullscreen mode has not been heavily tested yet. | ||
If you have QNX RtP version 6.1.0 and above you must download | ||
new Photon3D runtime from http://developers.qnx.com or install it | ||
from public repository or from public CD, available with QNX. The | ||
versions of OS before 6.1.0 are not supported. | ||
While creating OpenGL context software renderer mode is | ||
artificially selected (QSSL made acceleration only for Voodoo | ||
boards in fullscreen mode, sorry but I don't have this board to | ||
test OpenGL - maybe it work or maybe not :)). If you want accele- | ||
ration - you may remove some line in source code: find the file | ||
SDL_ph_video.c and remove the following | ||
OpenGL works well and is stable, but fullscreen mode has not been | ||
heavily tested yet. | ||
If you have QNX RtP version 6.1.0 or above you must download the | ||
Photon3D runtime from http://developers.qnx.com or install it from the | ||
public repository or the public CD, available with QNX. OS versions | ||
below 6.1.0 are not supported. | ||
When creating an OpenGL context, software renderer mode is artifi- | ||
cially selected (QSSL made acceleration only for Voodoo boards in | ||
fullscreen mode, sorry but I don't have this board to test OpenGL - | ||
maybe it works or maybe not :)). If you want acceleration - you can | ||
remove one line in the source code: find the file SDL_ph_video.c and | ||
remove the following | ||
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OGLAttrib[OGLargc++]=PHOGL_ATTRIB_FORCE_SW; | ||
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line in the ph_SetupOpenGLContext() function or change argument | ||
to the PHOGL_ATTRIB_FORCE_HW or PHOGL_ATTRIB_FAVOR_HW. | ||
line in the ph_SetupOpenGLContext() function or change the argument to | ||
PHOGL_ATTRIB_FORCE_HW or PHOGL_ATTRIB_FAVOR_HW. | ||
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========================================================================= | ||
Wheel and multibutton mouses: | ||
====================================================================== | ||
Wheel and multi-button mouses: | ||
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Photon emitting keyboard events (key up and down) when moved | ||
mouse wheel. But key_scan field appears valid according to flags, | ||
and it contain zero. It is base method of detecting mouse wheel | ||
events under photon. It looks like a hack, but it works for me :) | ||
on different PC configurations. | ||
Photon emits keyboard events (key up and down) when the mouse | ||
wheel is moved. The key_scan field appears valid, and it contains zero. | ||
That is a basic method of detecting mouse wheel events under Photon. | ||
It looks like a hack, but it works for me :) on various PC configura- | ||
tions. | ||
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I'm tested it on: | ||
I've tested it on: | ||
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1. Genius Optical NetScroll/+ (1 wheel) | ||
2. A4Tech Optical GreatEye WheelMouse, model: WOP-35. (2 wheels + | ||
2 additional buttons). Wheel for vertical scrolling works as | ||
usual, but second wheel for horizontal scrolling emitting two | ||
consequented events up or down, so it can provide more fast | ||
scrolling then the first wheel. Additional buttons doesn't | ||
emitting any events, but its look like handled by photon in | ||
unusual way - like click to front, but works not with any win- | ||
dow, looks like bug-o-feature :). | ||
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========================================================================= | ||
2. A4Tech Optical GreatEye WheelMouse, model: WOP-35. (2 wheels + 2 | ||
additional buttons). The wheel for vertical scrolling works as usu- | ||
al, but the second wheel for horizontal scrolling emits two sequen- | ||
tial events up or down, so it can provide faster scrolling than the | ||
first wheel. Additional buttons don't emit any events, but it looks | ||
like they're handled by photon in an unusual way - like click to | ||
front, but works not with any window, looks like bug-o-feature :). | ||
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====================================================================== | ||
CDROM handling issues: | ||
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Access to CDROM can be provided only with 'root' previleges. | ||
I can't do anything with this fact. /dev/cd0 have the brw------- | ||
flags and root:root rights. | ||
Access to CDROM can only be provided with 'root' privileges. I | ||
can't do anything about that, /dev/cd0 has brw------- permissions and | ||
root:root rights. | ||
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========================================================================= | ||
====================================================================== | ||
Video Overlays: | ||
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Overlays can flickering during the window movement, resizing, | ||
etc. It happens because photon driver updates the real window | ||
contents behind the overlay, then draws the temporary chroma key | ||
color over window contents. It can be done without the chroma key | ||
using but it cause overlay will be always on top. So flickering | ||
during the movement much better in that case. | ||
Double buffering code temporary disabled in the photon driver | ||
code, beacuse on my GF2-MX it cause accidently buffer switch, | ||
which going to the old frame showing. S3 Savage3D have the same | ||
problem, but ATI Rage 128 has not this problem. I think it can be | ||
fixed later. Current code works very fine, so maybe double buffe- | ||
ring is not needed right now. | ||
Something strange appears when you tried to move window with | ||
overlay beyond the left border of the screen. Overlay trying to | ||
stay at position x=0, but when tried to move it a bit more it | ||
jumps at posituin x=-60. Really strange, looks like overlay | ||
doesn't love the negotive coordinates. | ||
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========================================================================= | ||
Overlays can flicker during window movement, resizing, etc. It | ||
happens because the photon driver updates the real window contents be- | ||
hind the overlay, then draws the temporary chroma key color over the | ||
window contents. It can be done without using the chroma key but that | ||
causes the overlay to always be on top. So flickering during window | ||
movement is preferred instead. | ||
Double buffering code is temporarily disabled in the photon driver | ||
code, because on my GF2-MX it can accidentally cause a buffer switch, | ||
which causes the old frame to show. S3 Savage4 has the same problem, | ||
but ATI Rage 128 doesn't. I think it can be fixed later. Current code | ||
works very well, so maybe double buffering is not needed right now. | ||
Something strange happens when you try to move the window with the | ||
overlay beyond the left border of the screen. The overlay tries to | ||
stay at position x=0, but when attempting to move it a bit more it | ||
jumps to position x=-60 (on GF2-MX, on ATI Rage128 this value a bit | ||
smaller). It's really strange, looks like the overlay doesn't like | ||
negative coordinates. | ||
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======================================================================= | ||
Shared library building: | ||
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Shared library can be built, but before running autogen.sh | ||
script you need manually delete the libtool m4 stuff from | ||
the acinclude.m4 file (it comes after ESD detection code up to | ||
end of the file). Because libtool stuff in the acinclude.m4 file | ||
very old and doesn't know anything about the QNX. Just remove it | ||
and run autogen.sh script. | ||
A shared library can be built, but before running the autogen.sh | ||
script you must manually delete the libtool.m4 stuff from the acinclu- | ||
de.m4 file (it comes after the ESD detection code up to the end of the | ||
file), because the libtool stuff in the acinclude.m4 file is very old | ||
and doesn't know anything about QNX. Just remove it and run autogen.sh. | ||
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========================================================================= | ||
====================================================================== | ||
Some building issues: | ||
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Feel free to not pass --disable-shared option to configure, | ||
if you read comment above about 'Shared library building'. Other- | ||
wise this option is strongly recomended, because the sdl-config | ||
script will be unfunctional. | ||
Feel free to not use the --disable-shared configure option if you' | ||
ve read the above comment about 'Shared library building'. Otherwise | ||
this option is strongly recommended, as without it the sdl-config | ||
script will be broken. | ||
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Run configure script without x11 support, e.g.: | ||
Run the configure script without x11 support, e.g.: | ||
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a) for OpenGL support: | ||
./configure --prefix=/usr/local \ | ||
./configure --prefix=/usr \ | ||
--disable-video-x11 \ | ||
--disable-shared | ||
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b) without OpenGL support: | ||
./configure --prefix=/usr/local \ | ||
./configure --prefix=/usr \ | ||
--disable-video-x11 \ | ||
--disable-shared \ | ||
--disable-video-opengl | ||
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In test directory also run ./configure script without x11 | ||
support, e.g.: | ||
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./configure --with-sdl-prefix=/usr/local \ | ||
--with-sdl-exec-prefix=/usr/local \ | ||
--prefix=/usr/local --without-x | ||
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In the test directory also run the ./configure script without | ||
x11 support, e.g.: | ||
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./configure --with-sdl-prefix=/usr \ | ||
--with-sdl-exec-prefix=/usr \ | ||
--prefix=/usr --without-x |
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