Mercurial > sdl-ios-xcode
view src/thread/SDL_thread_c.h @ 2359:b70b96e615d2 gsoc2008_iphone
These files are the OpenGL ES render driver. You should be able to use them on any platform that supports OpenGL ES -- not just iPhone. The driver is based off the OpenGL render driver.
There are a few differences between OpenGL and OpenGL ES that present difficulties for this driver:
- OpenGL ES does NOT support many pixel formats (for example, no GL_BGR). Also, when using texture functions format and internalFormat must be the same -- this means 32 bit packed formats like SDL_PIXELFORMAT_BGR888 cannot be automatically converted to GL_RGB (which is 24bpp).
- OpenGL ES doesn't have GL_PACK_ROW_LENGTH, which means data must be reformatted before uploading changes to dirty rects. This change has been added.
- OpenGL ES doesn't support paletted textures, though there is an extension. I'm looking into this.
Some other notable differences:
- OpenGL ES has an extension called GL_OES_draw_texture which allows for quicker 2D sprite-type drawing. I use this in GL_RenderCopy when it is available. The iPhone supports the extension, but the iPhone Simulator does not (presently).
- No glBegin() / glEnd() and no GL_QUADS! I'm using glDrawArrays with GL_TRIANGLE_STRIP instead!
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
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date | Thu, 17 Jul 2008 23:31:42 +0000 |
parents | c9aa6bcb26f3 |
children | e27bdcc80744 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 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 */ #include "SDL_config.h" #ifndef _SDL_thread_c_h #define _SDL_thread_c_h /* Need the definitions of SYS_ThreadHandle */ #if SDL_THREADS_DISABLED #include "generic/SDL_systhread_c.h" #elif SDL_THREAD_BEOS #include "beos/SDL_systhread_c.h" #elif SDL_THREAD_DC #include "dc/SDL_systhread_c.h" #elif SDL_THREAD_EPOC #include "epoc/SDL_systhread_c.h" #elif SDL_THREAD_OS2 #include "os2/SDL_systhread_c.h" #elif SDL_THREAD_PTH #include "pth/SDL_systhread_c.h" #elif SDL_THREAD_PTHREAD #include "pthread/SDL_systhread_c.h" #elif SDL_THREAD_SPROC #include "irix/SDL_systhread_c.h" #elif SDL_THREAD_WIN32 #include "win32/SDL_systhread_c.h" #else #error Need thread implementation for this platform #include "generic/SDL_systhread_c.h" #endif #include "../SDL_error_c.h" /* This is the system-independent thread info structure */ struct SDL_Thread { Uint32 threadid; SYS_ThreadHandle handle; int status; SDL_error errbuf; void *data; }; /* This is the function called to run a thread */ extern void SDL_RunThread(void *data); #endif /* _SDL_thread_c_h */ /* vi: set ts=4 sw=4 expandtab: */