Mercurial > sdl-ios-xcode
annotate src/audio/mint/SDL_mintaudio_dma8.h @ 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> |
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date | Mon, 28 Nov 2005 13:58:26 +0000 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Library General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Library General Public |
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16 License along with this library; if not, write to the Free |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 |
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23 /* |
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24 DMA 8bits and Falcon Codec audio definitions |
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25 |
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26 Patrice Mandin, Didier Méquignon |
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27 */ |
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28 |
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29 #ifndef _SDL_mintaudio_dma8_h |
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30 #define _SDL_mintaudio_dma8_h |
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31 |
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32 #define DMAAUDIO_IO_BASE (0xffff8900) |
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33 struct DMAAUDIO_IO_S { |
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34 unsigned char int_ctrl; |
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35 unsigned char control; |
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36 |
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37 unsigned char dummy1; |
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38 unsigned char start_high; |
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39 unsigned char dummy2; |
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40 unsigned char start_mid; |
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41 unsigned char dummy3; |
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42 unsigned char start_low; |
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43 |
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44 unsigned char dummy4; |
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45 unsigned char cur_high; |
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46 unsigned char dummy5; |
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47 unsigned char cur_mid; |
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48 unsigned char dummy6; |
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49 unsigned char cur_low; |
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50 |
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51 unsigned char dummy7; |
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52 unsigned char end_high; |
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53 unsigned char dummy8; |
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54 unsigned char end_mid; |
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55 unsigned char dummy9; |
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56 unsigned char end_low; |
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57 |
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58 unsigned char dummy10[12]; |
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59 |
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60 unsigned char track_ctrl; /* CODEC only */ |
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61 unsigned char sound_ctrl; |
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62 unsigned short sound_data; |
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63 unsigned short sound_mask; |
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64 |
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65 unsigned char dummy11[10]; |
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66 |
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67 unsigned short dev_ctrl; |
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68 unsigned short dest_ctrl; |
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69 unsigned short sync_div; |
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70 unsigned char track_rec; |
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71 unsigned char adderin_input; |
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72 unsigned char channel_input; |
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73 unsigned char channel_amplification; |
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74 unsigned char channel_reduction; |
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75 |
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76 unsigned char dummy12[6]; |
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77 |
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78 unsigned char data_direction; |
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79 unsigned char dummy13; |
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80 unsigned char dev_data; |
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81 }; |
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82 #define DMAAUDIO_IO ((*(volatile struct DMAAUDIO_IO_S *)DMAAUDIO_IO_BASE)) |
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83 |
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84 #endif /* _SDL_mintaudio_dma8_h */ |