Mercurial > sdl-ios-xcode
annotate README.Porting @ 3100:7dc982143c06
Date: Sun, 22 Mar 2009 12:52:29 +0000
From: Luke Benstead
Subject: OpenGL 3.0 Context Creation
I've attached a patch which implements OpenGL 3.x context creation on
the latest SVN. I've added two options to SDL_GL_SetAttribute, these
are SDL_GL_CONTEXT_MAJOR_VERSION and SDL_GL_CONTEXT_MINOR_VERSION.
These default to 2 and 1 respectively. If the major version is less
than 3 then the current context creation method is used, otherwise the
appropriate new context creation function is called (depending on the
platform).
Sample code:
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("Unable to initialize SDL: %s\n", SDL_GetError());
return 1;
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); //Without these 2 lines, SDL will create a GL 2.x context
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_Surface* screen = SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL | SDL_FULLSCREEN );
I've implemented context creation on both Win32 and X and run basic
tests on both. This patch doesn't provide access to all the options
allowed by the new context creation (e.g. shared contexts, forward
compatible contexts) but they can be added pretty easily.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 24 Mar 2009 10:43:53 +0000 |
parents | 103760c3a5dc |
children |
rev | line source |
---|---|
1484
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
1 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
2 * Porting To A New Platform |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
3 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
4 The first thing you have to do when porting to a new platform, is look at |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
5 include/SDL_platform.h and create an entry there for your operating system. |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
6 The standard format is __PLATFORM__, where PLATFORM is the name of the OS. |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
7 Ideally SDL_platform.h will be able to auto-detect the system it's building |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
8 on based on C preprocessor symbols. |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
9 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
10 There are two basic ways of building SDL at the moment: |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
11 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
12 1. The "UNIX" way: ./configure; make; make install |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
13 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
14 If you have a GNUish system, then you might try this. Edit configure.in, |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
15 take a look at the large section labelled: |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
16 "Set up the configuration based on the target platform!" |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
17 Add a section for your platform, and then re-run autogen.sh and build! |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
18 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
19 2. Using an IDE: |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
20 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
21 If you're using an IDE or other non-configure build system, you'll probably |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
22 want to create a custom SDL_config.h for your platform. Edit SDL_config.h, |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
23 add a section for your platform, and create a custom SDL_config_{platform}.h, |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
24 based on SDL_config.h.minimal and SDL_config.h.in |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
25 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
26 Add the top level include directory to the header search path, and then add |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
27 the following sources to the project: |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
28 src/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
29 src/audio/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
30 src/cdrom/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
31 src/cpuinfo/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
32 src/events/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
33 src/file/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
34 src/joystick/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
35 src/stdlib/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
36 src/thread/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
37 src/timer/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
38 src/video/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
39 src/audio/disk/*.c |
1946
103760c3a5dc
Added the dummy audio driver to instructions
Sam Lantinga <slouken@libsdl.org>
parents:
1484
diff
changeset
|
40 src/audio/dummy/*.c |
1484
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
41 src/video/dummy/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
42 src/joystick/dummy/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
43 src/cdrom/dummy/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
44 src/thread/generic/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
45 src/timer/dummy/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
46 src/loadso/dummy/*.c |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
47 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
48 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
49 Once you have a working library without any drivers, you can go back to each |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
50 of the major subsystems and start implementing drivers for your platform. |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
51 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
52 If you have any questions, don't hesitate to ask on the SDL mailing list: |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
53 http://www.libsdl.org/mailing-list.php |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
54 |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
55 Enjoy! |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
56 Sam Lantinga (slouken@libsdl.org) |
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
57 |