Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_Surface.3 @ 983:7f08bd66f1ca
Date: Fri, 19 Nov 2004 06:23:53 -0800 (PST)
From: Eric Wing
Subject: OS X Mouse inversion problem fix (again)
Here's yet another patch for the OS X mouse inversion
problem. This should fix the problem once and for all.
I know I've said this before, but *This time for
sure!* :)
If you recall, my last patch broke the non-OpenGL
windowed code and caused the inversion to occur there
instead. Max submitted a patch that partially reverted
the changes back which included the os version hack
which is currently the most recent CVS.
Aaron Sullivan identified and reported to the mailing
list the other day, that the last partial regression
of the code broke OS X 10.2. Looking over the results,
I'm thinking that I was slightly more successful than
I thought at unifying the code. I think I was trying
to unify the code base for OpenGL and non-OpenGL
windowed modes for all versions of the OS. It looks
like I failed at at unifying the OpenGL and non-OpenGL
code, but I did succeed at unifying the OS versions.
Thus, we no longer need the hack for the OS version
checks. The partial regression still included an OS
check which is what broke things for < 10.3.
Attached is the patch for SDL_QuartzWM.m. It basically
is a half-line change that removes one of the two
checks that decides if the mouse coordinates need to
be inverted, i.e:
if (system_version >= 0x1030 &&
(SDL_VideoSurface->flags & SDL_OPENGL) )
becomes this:
if(SDL_VideoSurface->flags & SDL_OPENGL)
With Aaron's outstanding help, we have collectively
tested:
windowed OpenGL
windowed non-OpenGL
fullscreen OpenGL
fullscreen non-OpenGL
under OS X 10.2 (Jaguar), 10.3 (Panther), and 10.4
(Tiger).
We don't have access to 10.0 or 10.1, but since the
original problem didn't materialize until 10.3, I'm
hopeful that testing 10.2 is sufficient. And now that
the code is uniform, I'm also hoping we'll be safe
moving forward to deal with future revisions of the OS
with this issue.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 21 Nov 2004 00:57:47 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_Surface" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_Surface\- Graphical Surface Structure | |
| 4 .SH "STRUCTURE DEFINITION" | |
| 5 .PP | |
| 6 .nf | |
| 7 \f(CWtypedef struct SDL_Surface { | |
| 8 Uint32 flags; /* Read-only */ | |
| 9 SDL_PixelFormat *format; /* Read-only */ | |
| 10 int w, h; /* Read-only */ | |
| 11 Uint16 pitch; /* Read-only */ | |
| 12 void *pixels; /* Read-write */ | |
| 13 | |
| 14 /* clipping information */ | |
| 15 SDL_Rect clip_rect; /* Read-only */ | |
| 16 | |
| 17 /* Reference count -- used when freeing surface */ | |
| 18 int refcount; /* Read-mostly */ | |
|
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Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
19 |
|
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
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diff
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20 /* This structure also contains private fields not shown here */ |
| 0 | 21 } SDL_Surface;\fR |
| 22 .fi | |
| 23 .PP | |
| 24 .SH "STRUCTURE DATA" | |
| 25 .TP 20 | |
| 26 \fBflags\fR | |
| 27 Surface flags | |
| 28 .TP 20 | |
| 29 \fBformat\fR | |
| 30 Pixel \fIformat\fR | |
| 31 .TP 20 | |
| 32 \fBw, h\fR | |
| 33 Width and height of the surface | |
| 34 .TP 20 | |
| 35 \fBpitch\fR | |
| 36 Length of a surface scanline in bytes | |
| 37 .TP 20 | |
| 38 \fBpixels\fR | |
| 39 Pointer to the actual pixel data | |
| 40 .TP 20 | |
| 41 \fBclip_rect\fR | |
| 42 surface clip \fIrectangle\fR | |
| 43 .SH "DESCRIPTION" | |
| 44 .PP | |
| 45 \fBSDL_Surface\fR\&'s represent areas of "graphical" memory, memory that can be drawn to\&. The video framebuffer is returned as a \fBSDL_Surface\fR by \fI\fBSDL_SetVideoMode\fP\fR and \fI\fBSDL_GetVideoSurface\fP\fR\&. Most of the fields should be pretty obvious\&. \fBw\fR and \fBh\fR are the width and height of the surface in pixels\&. \fBpixels\fR is a pointer to the actual pixel data, the surface should be \fIlocked\fR before accessing this field\&. The \fBclip_rect\fR field is the clipping rectangle as set by \fI\fBSDL_SetClipRect\fP\fR\&. | |
| 46 .PP | |
| 47 The following are supported in the \fBflags\fR field\&. | |
| 48 .TP 20 | |
| 49 \fBSDL_SWSURFACE\fP | |
| 50 Surface is stored in system memory | |
| 51 .TP 20 | |
| 52 \fBSDL_HWSURFACE\fP | |
| 53 Surface is stored in video memory | |
| 54 .TP 20 | |
| 55 \fBSDL_ASYNCBLIT\fP | |
| 56 Surface uses asynchronous blits if possible | |
| 57 .TP 20 | |
| 58 \fBSDL_ANYFORMAT\fP | |
| 59 Allows any pixel-format (Display surface) | |
| 60 .TP 20 | |
| 61 \fBSDL_HWPALETTE\fP | |
| 62 Surface has exclusive palette | |
| 63 .TP 20 | |
| 64 \fBSDL_DOUBLEBUF\fP | |
| 65 Surface is double buffered (Display surface) | |
| 66 .TP 20 | |
| 67 \fBSDL_FULLSCREEN\fP | |
| 68 Surface is full screen (Display Surface) | |
| 69 .TP 20 | |
| 70 \fBSDL_OPENGL\fP | |
| 71 Surface has an OpenGL context (Display Surface) | |
| 72 .TP 20 | |
| 73 \fBSDL_OPENGLBLIT\fP | |
| 74 Surface supports OpenGL blitting (Display Surface) | |
| 75 .TP 20 | |
| 76 \fBSDL_RESIZABLE\fP | |
| 77 Surface is resizable (Display Surface) | |
| 78 .TP 20 | |
| 79 \fBSDL_HWACCEL\fP | |
| 80 Surface blit uses hardware acceleration | |
| 81 .TP 20 | |
|
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parents:
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diff
changeset
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82 \fBSDL_SRCCOLORKEY\fP |
| 0 | 83 Surface use colorkey blitting |
| 84 .TP 20 | |
| 85 \fBSDL_RLEACCEL\fP | |
| 86 Colorkey blitting is accelerated with RLE | |
| 87 .TP 20 | |
| 88 \fBSDL_SRCALPHA\fP | |
| 89 Surface blit uses alpha blending | |
| 90 .TP 20 | |
| 91 \fBSDL_PREALLOC\fP | |
| 92 Surface uses preallocated memory | |
| 93 .SH "SEE ALSO" | |
| 94 .PP | |
| 95 \fI\fBSDL_PixelFormat\fR\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
96 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |