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view src/video/Xext/extensions/xf86dga1.h @ 2359:b70b96e615d2 gsoc2008_iphone

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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>
date Thu, 17 Jul 2008 23:31:42 +0000
parents c121d94672cb
children
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/* $XFree86: xc/include/extensions/xf86dga1.h,v 1.2 1999/04/17 07:05:41 dawes Exp $ */
/*

Copyright (c) 1995  Jon Tombs
Copyright (c) 1995  XFree86 Inc

*/

/************************************************************************

   THIS IS THE OLD DGA API AND IS OBSOLETE.  PLEASE DO NOT USE IT ANYMORE

************************************************************************/

#ifndef _XF86DGA1_H_
#define _XF86DGA1_H_

#include <X11/Xfuncproto.h>
#include "SDL_name.h"

#define X_XF86DGAQueryVersion		0
#define X_XF86DGAGetVideoLL		1
#define X_XF86DGADirectVideo		2
#define X_XF86DGAGetViewPortSize	3
#define X_XF86DGASetViewPort		4
#define X_XF86DGAGetVidPage		5
#define X_XF86DGASetVidPage		6
#define X_XF86DGAInstallColormap	7
#define X_XF86DGAQueryDirectVideo	8
#define X_XF86DGAViewPortChanged	9

#define XF86DGADirectPresent		0x0001
#define XF86DGADirectGraphics		0x0002
#define XF86DGADirectMouse		0x0004
#define XF86DGADirectKeyb		0x0008
#define XF86DGAHasColormap		0x0100
#define XF86DGADirectColormap		0x0200




#ifndef _XF86DGA_SERVER_

_XFUNCPROTOBEGIN Bool SDL_NAME(XF86DGAQueryVersion) (
#if NeedFunctionPrototypes
                                                        Display * /* dpy */ ,
                                                        int *
                                                        /* majorVersion */ ,
                                                        int *   /* minorVersion */
#endif
    );

Bool SDL_NAME(XF86DGAQueryExtension) (
#if NeedFunctionPrototypes
                                         Display * /* dpy */ ,
                                         int * /* event_base */ ,
                                         int *  /* error_base */
#endif
    );

Status SDL_NAME(XF86DGAGetVideoLL) (
#if NeedFunctionPrototypes
                                       Display * /* dpy */ ,
                                       int /* screen */ ,
                                       int * /* base addr */ ,
                                       int * /* width */ ,
                                       int * /* bank_size */ ,
                                       int *    /* ram_size */
#endif
    );

Status SDL_NAME(XF86DGAGetVideo) (
#if NeedFunctionPrototypes
                                     Display * /* dpy */ ,
                                     int /* screen */ ,
                                     char ** /* base addr */ ,
                                     int * /* width */ ,
                                     int * /* bank_size */ ,
                                     int *      /* ram_size */
#endif
    );

Status SDL_NAME(XF86DGADirectVideo) (
#if NeedFunctionPrototypes
                                        Display * /* dpy */ ,
                                        int /* screen */ ,
                                        int     /* enable */
#endif
    );

Status SDL_NAME(XF86DGADirectVideoLL) (
#if NeedFunctionPrototypes
                                          Display * /* dpy */ ,
                                          int /* screen */ ,
                                          int   /* enable */
#endif
    );

Status SDL_NAME(XF86DGAGetViewPortSize) (
#if NeedFunctionPrototypes
                                            Display * /* dpy */ ,
                                            int /* screen */ ,
                                            int * /* width */ ,
                                            int *       /* height */
#endif
    );

Status SDL_NAME(XF86DGASetViewPort) (
#if NeedFunctionPrototypes
                                        Display * /* dpy */ ,
                                        int /* screen */ ,
                                        int x /* X */ ,
                                        int y   /* Y */
#endif
    );

Status SDL_NAME(XF86DGAGetVidPage) (
#if NeedFunctionPrototypes
                                       Display * /* dpy */ ,
                                       int /* screen */ ,
                                       int *    /* vid page */
#endif
    );

Status SDL_NAME(XF86DGASetVidPage) (
#if NeedFunctionPrototypes
                                       Display * /* dpy */ ,
                                       int /* screen */ ,
                                       int      /* vid page */
#endif
    );

Status SDL_NAME(XF86DGAInstallColormap) (
#if NeedFunctionPrototypes
                                            Display * /* dpy */ ,
                                            int /* screen */ ,
                                            Colormap    /*Colormap */
#endif
    );

int SDL_NAME(XF86DGAForkApp) (
#if NeedFunctionPrototypes
                                 int screen
#endif
    );

Status SDL_NAME(XF86DGAQueryDirectVideo) (
#if NeedFunctionPrototypes
                                             Display * /* dpy */ ,
                                             int /* screen */ ,
                                             int *      /* flags */
#endif
    );

Bool SDL_NAME(XF86DGAViewPortChanged) (
#if NeedFunctionPrototypes
                                          Display * /* dpy */ ,
                                          int /* screen */ ,
                                          int   /* n */
#endif
    );


_XFUNCPROTOEND
#endif /* _XF86DGA_SERVER_ */
#endif /* _XF86DGA1_H_ */
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