Mercurial > sdl-ios-xcode
view include/SDL_version.h @ 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 | 972a69e47cd9 |
children | d3baf5ac4e37 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ /** * \file SDL_version.h * * This header defines the current SDL version */ #ifndef _SDL_version_h #define _SDL_version_h #include "SDL_stdinc.h" #include "SDL_revision.h" #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ extern "C" { /* *INDENT-ON* */ #endif /** * \struct SDL_version * \brief Information the version of SDL in use. * * Represents the library's version as three levels: major revision * (increments with massive changes, additions, and enhancements), * minor revision (increments with backwards-compatible changes to the * major revision), and patchlevel (increments with fixes to the minor * revision). * * \sa SDL_VERSION * \sa SDL_GetVersion */ typedef struct SDL_version { Uint8 major; /**< major version */ Uint8 minor; /**< minor version */ Uint8 patch; /**< update version */ } SDL_version; /* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL */ #define SDL_MAJOR_VERSION 1 #define SDL_MINOR_VERSION 3 #define SDL_PATCHLEVEL 0 /** * \def SDL_VERSION(x) * \brief Macro to determine SDL version program was compiled against. * * This macro fills in a SDL_version structure with the version of the * library you compiled against. This is determined by what header the * compiler uses. Note that if you dynamically linked the library, you might * have a slightly newer or older version at runtime. That version can be * determined with SDL_GetVersion(), which, unlike SDL_VERSION, * is not a macro. * * \param x A pointer to a SDL_version struct to initialize. * * \sa SDL_version * \sa SDL_GetVersion */ #define SDL_VERSION(x) \ { \ (x)->major = SDL_MAJOR_VERSION; \ (x)->minor = SDL_MINOR_VERSION; \ (x)->patch = SDL_PATCHLEVEL; \ } /* This macro turns the version numbers into a numeric value: (1,2,3) -> (1203) This assumes that there will never be more than 100 patchlevels */ #define SDL_VERSIONNUM(X, Y, Z) \ ((X)*1000 + (Y)*100 + (Z)) /* This is the version number macro for the current SDL version */ #define SDL_COMPILEDVERSION \ SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL) /* This macro will evaluate to true if compiled with SDL at least X.Y.Z */ #define SDL_VERSION_ATLEAST(X, Y, Z) \ (SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z)) /** * \fn void SDL_GetVersion(SDL_version *ver) * \brief Get the version of SDL that is linked against your program. * * If you are using a shared library (DLL) version of SDL, then it is * possible that it will be different than the version you compiled against. * * This is a real function; the macro SDL_VERSION tells you what version * of SDL you compiled against: * * \code * SDL_version compiled; * SDL_version linked; * * SDL_VERSION(&compiled); * SDL_GetVersion(&linked); * printf("We compiled against SDL version %d.%d.%d ...\n", * compiled.major, compiled.minor, compiled.patch); * printf("But we linked against SDL version %d.%d.%d.\n", * linked.major, linked.minor, linked.patch); * \endcode * * This function may be called safely at any time, even before SDL_Init(). * * \sa SDL_VERSION */ extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver); /** * \fn int SDL_GetRevision(void) * \brief Get the code revision of SDL that is linked against your program. */ extern DECLSPEC int SDLCALL SDL_GetRevision(void); /* Ends C function definitions when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ } /* *INDENT-ON* */ #endif #include "close_code.h" #endif /* _SDL_version_h */ /* vi: set ts=4 sw=4 expandtab: */