Mercurial > sdl-ios-xcode
annotate README.MacOS @ 1192:54aa9aa32327
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Fri, 18 Nov 2005 23:39:02 +0100
Subject: [SDL] Mouse position bugs on Mac OS X
The attached patch fixes a few bugs in SDL related to the mouse position
in windowed mode on Mac OS X, reproduced using the attached minimal test
program - at least here on 10.3.9, with SDL CVS from today. Could anyone
test whether the bugs exist and are fixed by the patch on 10.2 and 10.4?
1. When using OpenGL, the vertical mouse positions obtained through
events or SDL_GetMouseState() are off by one.
2. When using OpenGL, SDL_WarpMouse() inverts the y coordinate.
3. Clicks on the topmost pixel row of the window are not recognized.
1 and 2 do not occur in non-OpenGL mode, while 3 does. All three only
occur in windowed mode, not in fullscreen.
The cause for 1 and 3 is that in Cocoa, "the location of the mouse"
seems to be defined as "the location of the top left corner of the mouse
pointer's hot pixel" (this is not documented, it's just what I found out
here), which together with the fact that Cocoa's usual y coordinates
start at the bottom and increase upwards means that the y coordinate of
the mouse runs from 1 to h, not from 0 to h-1, in a window of height h.
If it does work on 10.2 and 10.4 (I'll try to test it as soon as I can,
but at the moment all I have at hand is 10.3.9), can this be applied to
the CVS?
-Christian
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Mon, 28 Nov 2005 10:41:51 +0100
Subject: [SDL] Re: Mouse position bugs on Mac OS X
I wrote:
> I'll try to test it as soon as I can, but at the moment all I have at hand is 10.3.9
So, here are the results of my tests (with patched and unpatched
frameworks compiled with Xcode 1.5 (gcc 3.3) on 10.3.9):
On 10.1.5, my test program doesn't run because of "Undefined symbols:
SDL undefined reference to _CGMainDisplayID expected to be defined in
Carbon". I guess not supporting 10.1 was a deliberate decision then and
that's OK with me.
On 10.2.8, 10.3.9, and 10.4.0, the bugs exist as described in my
original post and are fixed by my patch. That is, there is no difference
between pre/post 10.3 and the patched version works correctly in all
combinations of GL/non-GL and windowed/fullscreen.
I therefore recommend the patch for inclusion.
-Christian
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Mon, 28 Nov 2005 13:58:26 +0000 |
| parents | 37e3ca9254c7 |
| children |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 ============================================================================== | |
| 3 Using the Simple DirectMedia Layer with MacOS 7,8,9 on PPC | |
| 4 ============================================================================== | |
| 5 | |
| 6 These instructions are for people using the Apple MPW environment: | |
| 7 http://developer.apple.com/tools/mpw-tools/ | |
| 8 | |
| 9 CodeWarrior projects are available in the CWprojects directory. | |
| 10 | |
| 11 ============================================================================== | |
| 12 I. Building the Simple DirectMedia Layer libraries: | |
| 13 (This step isn't necessary if you have the SDL binary distribution) | |
| 14 | |
| 15 First, unpack the MPWmake.sea.hqx archive and move SDL.make into the | |
| 16 SDL directory. | |
| 17 | |
| 18 Start MPW | |
| 19 | |
| 20 Set the current directory within MPW to the SDL toplevel directory. | |
| 21 | |
| 22 Build "SDL" (Type Command-B and enter "SDL" in the dialog) | |
| 23 | |
| 24 If everything compiles successfully, you now have the PPC libraries | |
| 25 "SDL" and "SDLmain.o" in the 'lib' subdirectory. | |
| 26 | |
| 27 ============================================================================== | |
| 28 II. Building the Simple DirectMedia Layer test programs: | |
| 29 | |
| 30 First, unpack the MPWmake.sea.hqx archive, move the new rsrc directory to | |
| 31 the main SDL directory, and move the makefiles in the new test subdirectory | |
| 32 to the SDL 'test' subdirectory. | |
| 33 | |
| 34 Start MPW | |
| 35 | |
| 36 Set the current directory within MPW to the SDL 'test' subdirectory. | |
| 37 | |
| 38 Build the programs that have an associated MPW makefile (file ending | |
| 39 with .make), including "testwin", "testalpha", and "graywin". | |
| 40 | |
| 41 Copy the SDL library file into the test directory, and run! | |
| 42 | |
| 43 ============================================================================== | |
| 44 III. Building the Simple DirectMedia Layer demo programs: | |
| 45 | |
| 46 Copy one of the test program Makefiles to the demo directory | |
| 47 and modify it to match the sources in the demo. | |
| 48 | |
| 49 ============================================================================== | |
| 50 IV. Enjoy! :) | |
| 51 | |
| 52 If you have a project you'd like me to know about, or want to ask questions, | |
| 53 go ahead and join the SDL developer's mailing list by sending e-mail to: | |
| 54 | |
|
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37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
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55 sdl-request@libsdl.org |
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Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
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57 and put "subscribe" into the subject of the message. Or alternatively you |
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37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
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58 can use the web interface: |
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37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
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59 |
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37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
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60 http://www.libsdl.org/mailman/listinfo/sdl |
| 0 | 61 |
| 62 ============================================================================== | |
| 63 |