Mercurial > sdl-ios-xcode
view src/main/epoc/SDL_main.cpp @ 1555:780fd5b61df1
Fixed bug #89
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 19 Mar 2006 12:05:16 +0000 |
parents | f6ffac90895c |
children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ /* SDL_main.cpp The Epoc executable startup functions Epoc version by Hannu Viitala (hannu.j.viitala@mbnet.fi) */ #include <e32std.h> #include <e32def.h> #include <e32svr.h> #include <e32base.h> #include <estlib.h> #include <stdlib.h> #include <stdio.h> #include <w32std.h> #include <apgtask.h> #include "SDL_error.h" #ifndef EXPORT_C # ifdef __VC32__ # define IMPORT_C __declspec(dllexport) # define EXPORT_C __declspec(dllexport) # endif # ifdef __GCC32__ # define IMPORT_C # define EXPORT_C __declspec(dllexport) # endif #endif #if defined(__WINS__) #include <estw32.h> IMPORT_C void RegisterWsExe(const TDesC &aName); #endif /* The prototype for the application's main() function */ #define main SDL_main extern "C" int main (int argc, char *argv[], char *envp[]); extern "C" void exit (int ret); /* Epoc main function */ GLDEF_C TInt E32Main() { /* Get the clean-up stack */ CTrapCleanup* cleanup = CTrapCleanup::New(); #if defined(__WINS__) /* arrange for access to Win32 stdin/stdout/stderr */ RWin32Stream::StartServer(); #endif /* Arrange for multi-threaded operation */ SpawnPosixServerThread(); /* Get args and environment */ int argc=0; char** argv=0; char** envp=0; __crt0(argc,argv,envp); #if defined(__WINS__) /* Cause the graphical Window Server to come into existence */ RSemaphore sem; sem.CreateGlobal(_L("WsExeSem"),0); RegisterWsExe(sem.FullName()); #endif /* Start the application! */ /* Create stdlib */ _REENT; /* Set process and thread priority */ RThread currentThread; currentThread.Rename(_L("SdlProgram")); currentThread.SetProcessPriority(EPriorityLow); currentThread.SetPriority(EPriorityMuchLess); /* Call stdlib main */ int ret = main(argc, argv, envp); /* !! process exits here if there is "exit()" in main! */ /* Call exit */ exit(ret); /* !! process exits here! */ /* Free resources and return */ CloseSTDLIB(); delete cleanup; return(KErrNone); } /* Epoc dll entry point */ #if defined(__WINS__) GLDEF_C TInt E32Dll(TDllReason) { return(KErrNone); } EXPORT_C TInt WinsMain(TAny *) { E32Main(); return KErrNone; } #endif