Mercurial > sdl-ios-xcode
view docs/html/sdlsurface.html @ 1133:609c060fd2a2
The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
To: SDL Developers <sdl@libsdl.org>
From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se>
Date: Mon, 30 May 2005 23:29:04 +0200
Subject: [SDL] Mac OS X Video Drivers [patch]
I've updated/added the Carbon and X11 video drivers
to the Mac OS X port of SDL 1.2 (the CVS version),
and made the Cocoa driver and runtime *optional*.
The default is still Cocoa, and the "Quartz" driver.
But you can now also use "toolbox" for Carbon, and
"x11" for running with Apple's (or other) X11 server:
export SDL_VIDEODRIVER=x11
export SDL_VIDEO_GL_DRIVER=/usr/X11R6/lib/libGL.dylib
It also checks if the frameworks are available, by a:
#include <Carbon/Carbon.h> or #import <Cocoa/Cocoa.h>
(this should make it configure on plain Darwin as well?)
Here are the new configure targets:
--enable-video-cocoa use Cocoa/Quartz video driver default=yes
--enable-video-carbon use Carbon/QuickDraw video driver default=yes
--enable-video-x11 use X11 video driver default=no
./configure --enable-video-cocoa --enable-video-carbon
--enable-video-x11 \
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib
The Carbon version is just an updated version of the old
SDL driver for Mac OS 9, and could probably be improved...
(but it does work, including the Carbon version of SDLmain)
If you disable cocoa, you can run with -framework Carbon only,
and the C version of SDL_main.c. And if you disable carbon too,
you can still use the X11 version which doesn't require SDLmain.
I updated the DrawSprocket version, but did not include it.
(no blitters or VRAM GWorlds etc. available on OS X anyway)
Besides for Mac OS 9, I don't think there's any use for it ?
And note that any performance on Mac OS X equals OpenGL anyway...
You can get "fair" software SDL results on captured CG displays,
but for decent frame rates you need to be using GL for rendering.
Finally, here is the patch itself:
http://www.algonet.se/~afb/SDL-12CVS-macvideo.patch
--anders
PS. It says "video", but as usual it applies to mouse/keyboard too.
------
To: A list for developers using the SDL library <sdl@libsdl.org>
From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se>
Date: Sun, 4 Sep 2005 10:02:15 +0200
Subject: [SDL] Updated Mac patch
Updated the previous Mac patch to disable Carbon by default.
Also "fixed" the SDL.spec again, so that it builds on Darwin.
http://www.algonet.se/~afb/SDL-1.2.9-mac.patch
Also applied fine to SDL12 CVS, when I tried it.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Thu, 08 Sep 2005 06:16:14 +0000 |
parents | 355632dca928 |
children |
line wrap: on
line source
<HTML ><HEAD ><TITLE >SDL_Surface</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Video" HREF="video.html"><LINK REL="PREVIOUS" TITLE="SDL_PixelFormat" HREF="sdlpixelformat.html"><LINK REL="NEXT" TITLE="SDL_VideoInfo" HREF="sdlvideoinfo.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlpixelformat.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlvideoinfo.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLSURFACE" ></A >SDL_Surface</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN3263" ></A ><H2 >Name</H2 >SDL_Surface -- Graphical Surface Structure</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3266" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct SDL_Surface { Uint32 flags; /* Read-only */ SDL_PixelFormat *format; /* Read-only */ int w, h; /* Read-only */ Uint16 pitch; /* Read-only */ void *pixels; /* Read-write */ /* clipping information */ SDL_Rect clip_rect; /* Read-only */ /* Reference count -- used when freeing surface */ int refcount; /* Read-mostly */ /* This structure also contains private fields not shown here */ } SDL_Surface;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3269" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN3271" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >flags</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface flags</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >format</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Pixel <A HREF="sdlpixelformat.html" >format</A ></TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >w, h</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Width and height of the surface</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >pitch</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Length of a surface scanline in bytes</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >pixels</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Pointer to the actual pixel data</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >clip_rect</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >surface clip <A HREF="sdlrect.html" >rectangle</A ></TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3300" ></A ><H2 >Description</H2 ><P ><SPAN CLASS="STRUCTNAME" >SDL_Surface</SPAN >'s represent areas of "graphical" memory, memory that can be drawn to. The video framebuffer is returned as a <SPAN CLASS="STRUCTNAME" >SDL_Surface</SPAN > by <A HREF="sdlsetvideomode.html" ><TT CLASS="FUNCTION" >SDL_SetVideoMode</TT ></A > and <A HREF="sdlgetvideosurface.html" ><TT CLASS="FUNCTION" >SDL_GetVideoSurface</TT ></A >. Most of the fields should be pretty obvious. <TT CLASS="STRUCTFIELD" ><I >w</I ></TT > and <TT CLASS="STRUCTFIELD" ><I >h</I ></TT > are the width and height of the surface in pixels. <TT CLASS="STRUCTFIELD" ><I >pixels</I ></TT > is a pointer to the actual pixel data, the surface should be <A HREF="sdllocksurface.html" >locked</A > before accessing this field. The <TT CLASS="STRUCTFIELD" ><I >clip_rect</I ></TT > field is the clipping rectangle as set by <A HREF="sdlsetcliprect.html" ><TT CLASS="FUNCTION" >SDL_SetClipRect</TT ></A >.</P ><P >The following are supported in the <TT CLASS="STRUCTFIELD" ><I >flags</I ></TT > field.</P ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN3318" ></A ><P ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_SWSURFACE</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface is stored in system memory</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_HWSURFACE</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface is stored in video memory</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_ASYNCBLIT</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface uses asynchronous blits if possible</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_ANYFORMAT</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Allows any pixel-format (Display surface)</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_HWPALETTE</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface has exclusive palette</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_DOUBLEBUF</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface is double buffered (Display surface)</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_FULLSCREEN</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface is full screen (Display Surface)</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_OPENGL</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface has an OpenGL context (Display Surface)</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_OPENGLBLIT</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface supports OpenGL blitting (Display Surface)</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_RESIZABLE</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface is resizable (Display Surface)</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_HWACCEL</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface blit uses hardware acceleration</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_SRCCOLORKEY</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface use colorkey blitting</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_RLEACCEL</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Colorkey blitting is accelerated with RLE</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_SRCALPHA</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface blit uses alpha blending</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_PREALLOC</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Surface uses preallocated memory</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3381" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlpixelformat.html" ><SPAN CLASS="STRUCTNAME" >SDL_PixelFormat</SPAN ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlpixelformat.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlvideoinfo.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_PixelFormat</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="video.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_VideoInfo</TD ></TR ></TABLE ></DIV ></BODY ></HTML >