src/video/x11/SDL_x11yuv.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 25 Aug 2004 05:39:03 +0000
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Date: Tue, 24 Aug 2004 06:16:32 +0200 From: Christian Biere Subject: [SDL] YUV Overlay vs. XV_AUTOPAINT_COLORKEY I have a problem with SDL's YUV Overlay support using X11 Xv. Some people reported that they get nothing but a black screen. I've compared the output of xvattr they've sent me with the values I get here. It turned out that XV_AUTOPAINT_COLORKEY was disabled. By enabling this feature everything works fine.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2004 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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 "@(#) $Id$";
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#endif
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/* This is the XFree86 Xv extension implementation of YUV video overlays */
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#ifdef XFREE86_XV
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xlib.h>
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#ifndef NO_SHARED_MEMORY
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <X11/extensions/XShm.h>
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#endif
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#include <XFree86/extensions/Xvlib.h>
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#include "SDL_error.h"
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#include "SDL_video.h"
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#include "SDL_x11yuv_c.h"
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#include "SDL_yuvfuncs.h"
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#define XFREE86_REFRESH_HACK
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#ifdef XFREE86_REFRESH_HACK
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#include "SDL_x11image_c.h"
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#endif
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/* Workaround when pitch != width */
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#define PITCH_WORKAROUND
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/* Fix for the NVidia GeForce 2 - use the last available adaptor */
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/*#define USE_LAST_ADAPTOR*/  /* Apparently the NVidia drivers are fixed */
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/* The functions used to manipulate software video overlays */
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static struct private_yuvhwfuncs x11_yuvfuncs = {
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	X11_LockYUVOverlay,
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	X11_UnlockYUVOverlay,
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	X11_DisplayYUVOverlay,
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	X11_FreeYUVOverlay
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};
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struct private_yuvhwdata {
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	int port;
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#ifndef NO_SHARED_MEMORY
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	int yuv_use_mitshm;
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	XShmSegmentInfo yuvshm;
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#endif
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	SDL_NAME(XvImage) *image;
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};
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static int (*X_handler)(Display *, XErrorEvent *) = NULL;
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#ifndef NO_SHARED_MEMORY
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/* Shared memory error handler routine */
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static int shm_error;
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static int shm_errhandler(Display *d, XErrorEvent *e)
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{
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        if ( e->error_code == BadAccess ) {
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        	shm_error = True;
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        	return(0);
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        } else
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		return(X_handler(d,e));
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}
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#endif /* !NO_SHARED_MEMORY */
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static int xv_error;
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static int xv_errhandler(Display *d, XErrorEvent *e)
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{
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        if ( e->error_code == BadMatch ) {
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        	xv_error = True;
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        	return(0);
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        } else
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		return(X_handler(d,e));
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}
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SDL_Overlay *X11_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display)
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{
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	SDL_Overlay *overlay;
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	struct private_yuvhwdata *hwdata;
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	int xv_port;
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	int i, j, k;
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	int adaptors;
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	SDL_NAME(XvAdaptorInfo) *ainfo;
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	int bpp;
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#ifndef NO_SHARED_MEMORY
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	XShmSegmentInfo *yuvshm;
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#endif
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	/* Look for the XVideo extension with a valid port for this format */
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	xv_port = -1;
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	if ( (Success == SDL_NAME(XvQueryExtension)(GFX_Display, &j, &j, &j, &j, &j)) &&
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	     (Success == SDL_NAME(XvQueryAdaptors)(GFX_Display,
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	                                 RootWindow(GFX_Display, SDL_Screen),
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	                                 &adaptors, &ainfo)) ) {
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#ifdef USE_LAST_ADAPTOR
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		for ( i=0; i < adaptors; ++i )
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#else
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		for ( i=0; (i < adaptors) && (xv_port == -1); ++i )
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#endif /* USE_LAST_ADAPTOR */
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		{
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			/* Check to see if the visual can be used */
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			if ( BUGGY_XFREE86(<=, 4001) ) {
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				int visual_ok = 0;
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				for ( j=0; j<ainfo[i].num_formats; ++j ) {
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					if ( ainfo[i].formats[j].visual_id ==
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							SDL_Visual->visualid ) {
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						visual_ok = 1;
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						break;
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					}
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				}
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				if ( ! visual_ok ) {
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					continue;
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				}
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			}
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			if ( (ainfo[i].type & XvInputMask) &&
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			     (ainfo[i].type & XvImageMask) ) {
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				int num_formats;
292
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   143
				SDL_NAME(XvImageFormatValues) *formats;
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   144
				formats = SDL_NAME(XvListImageFormats)(GFX_Display,
0
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				              ainfo[i].base_id, &num_formats);
182
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   146
#ifdef USE_LAST_ADAPTOR
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e3d0517bf67e *** empty log message ***
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   147
				for ( j=0; j < num_formats; ++j )
182
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   148
#else
659
e3d0517bf67e *** empty log message ***
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				for ( j=0; (j < num_formats) && (xv_port == -1); ++j )
182
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#endif /* USE_LAST_ADAPTOR */
659
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   151
				{
0
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					if ( (Uint32)formats[j].id == format ) {
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						for ( k=0; k < ainfo[i].num_ports; ++k ) {
292
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   154
							if ( Success == SDL_NAME(XvGrabPort)(GFX_Display, ainfo[i].base_id+k, CurrentTime) ) {
0
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								xv_port = ainfo[i].base_id+k;
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								break;
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							}
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						}
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   159
					}
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				}
410
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   161
				if ( formats ) {
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   162
					XFree(formats);
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   163
				}
0
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   164
			}
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   165
		}
409
1c3cf7231cd4 Fixed memory leaks in YUV code
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   166
		SDL_NAME(XvFreeAdaptorInfo)(ainfo);
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   167
	}
429
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   168
813
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	/* Precalculate the bpp for the pitch workaround below */
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	switch (format) {
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   171
	    /* Add any other cases we need to support... */
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   172
	    case SDL_YUY2_OVERLAY:
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   173
	    case SDL_UYVY_OVERLAY:
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   174
	    case SDL_YVYU_OVERLAY:
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		bpp = 2;
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   176
		break;
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   177
	    default:
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		bpp = 1;
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   179
		break;
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   180
	}
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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   181
434
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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   182
#if 0
429
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   183
    /*
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   184
     * !!! FIXME:
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   185
     * "Here are some diffs for X11 and yuv.  Note that the last part 2nd
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diff changeset
   186
     *  diff should probably be a new call to XvQueryAdaptorFree with ainfo
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diff changeset
   187
     *  and the number of adaptors, instead of the loop through like I did."
434
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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diff changeset
   188
     *
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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   189
     *  ACHTUNG: This is broken! It looks like XvFreeAdaptorInfo does this
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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   190
     *  for you, so we end up with a double-free. I need to look at this
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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diff changeset
   191
     *  more closely...  --ryan.
429
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   192
     */
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   193
 	for ( i=0; i < adaptors; ++i ) {
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   194
 	  if (ainfo[i].name != NULL) Xfree(ainfo[i].name);
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diff changeset
   195
 	  if (ainfo[i].formats != NULL) Xfree(ainfo[i].formats);
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diff changeset
   196
   	}
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   197
 	Xfree(ainfo);
434
ed58b98c0d9d Commented double-free buggy code. Will examine more closely later.
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   198
#endif
429
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   199
0
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   200
	if ( xv_port == -1 ) {
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   201
		SDL_SetError("No available video ports for requested format");
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   202
		return(NULL);
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   203
	}
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   204
950
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   205
	/* Enable auto-painting of the overlay colorkey */
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   206
	{
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   207
		static const char *attr[] = { "XV_AUTOPAINT_COLORKEY", "XV_AUTOPAINT_COLOURKEY" };
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diff changeset
   208
		unsigned int i;
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   209
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   210
		SDL_NAME(XvSelectPortNotify)(GFX_Display, xv_port, True);
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   211
		X_handler = XSetErrorHandler(xv_errhandler);
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diff changeset
   212
		for ( i=0; i < sizeof(attr)/(sizeof attr[0]); ++i ) {
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   213
			Atom a;
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diff changeset
   214
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   215
			xv_error = False;
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diff changeset
   216
			a = XInternAtom(GFX_Display, attr[i], True);
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   217
			if ( a != None ) {
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   218
     				SDL_NAME(XvSetPortAttribute)(GFX_Display, xv_port, a, 1);
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   219
				XSync(GFX_Display, True);
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   220
				if ( ! xv_error ) {
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diff changeset
   221
					break;
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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parents: 813
diff changeset
   222
				}
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   223
			}
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   224
		}
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   225
		XSetErrorHandler(X_handler);
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 813
diff changeset
   226
		SDL_NAME(XvSelectPortNotify)(GFX_Display, xv_port, False);
b7a5c1b64829 Date: Tue, 24 Aug 2004 06:16:32 +0200
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diff changeset
   227
	}
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diff changeset
   228
0
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diff changeset
   229
	/* Create the overlay structure */
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diff changeset
   230
	overlay = (SDL_Overlay *)malloc(sizeof *overlay);
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diff changeset
   231
	if ( overlay == NULL ) {
292
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
   232
		SDL_NAME(XvUngrabPort)(GFX_Display, xv_port, CurrentTime);
0
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diff changeset
   233
		SDL_OutOfMemory();
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diff changeset
   234
		return(NULL);
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diff changeset
   235
	}
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diff changeset
   236
	memset(overlay, 0, (sizeof *overlay));
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parents:
diff changeset
   237
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diff changeset
   238
	/* Fill in the basic members */
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parents:
diff changeset
   239
	overlay->format = format;
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parents:
diff changeset
   240
	overlay->w = width;
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parents:
diff changeset
   241
	overlay->h = height;
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parents:
diff changeset
   242
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diff changeset
   243
	/* Set up the YUV surface function structure */
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diff changeset
   244
	overlay->hwfuncs = &x11_yuvfuncs;
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diff changeset
   245
	overlay->hw_overlay = 1;
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parents:
diff changeset
   246
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diff changeset
   247
	/* Create the pixel data and lookup tables */
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parents:
diff changeset
   248
	hwdata = (struct private_yuvhwdata *)malloc(sizeof *hwdata);
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diff changeset
   249
	overlay->hwdata = hwdata;
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diff changeset
   250
	if ( hwdata == NULL ) {
292
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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parents: 252
diff changeset
   251
		SDL_NAME(XvUngrabPort)(GFX_Display, xv_port, CurrentTime);
0
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diff changeset
   252
		SDL_OutOfMemory();
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diff changeset
   253
		SDL_FreeYUVOverlay(overlay);
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diff changeset
   254
		return(NULL);
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diff changeset
   255
	}
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   256
	hwdata->port = xv_port;
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diff changeset
   257
#ifndef NO_SHARED_MEMORY
0
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diff changeset
   258
	yuvshm = &hwdata->yuvshm;
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parents:
diff changeset
   259
	memset(yuvshm, 0, sizeof(*yuvshm));
292
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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diff changeset
   260
	hwdata->image = SDL_NAME(XvShmCreateImage)(GFX_Display, xv_port, format,
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   261
						   0, width, height, yuvshm);
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diff changeset
   262
#ifdef PITCH_WORKAROUND
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diff changeset
   263
	if ( hwdata->image != NULL && hwdata->image->pitches[0] != (width*bpp) ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   264
		/* Ajust overlay width according to pitch */ 
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diff changeset
   265
		XFree(hwdata->image);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   266
		width = hwdata->image->pitches[0] / bpp;
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   267
		hwdata->image = SDL_NAME(XvShmCreateImage)(GFX_Display, xv_port, format,
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diff changeset
   268
							   0, width, height, yuvshm);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   269
	}
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diff changeset
   270
#endif /* PITCH_WORKAROUND */
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   271
	hwdata->yuv_use_mitshm = (hwdata->image != NULL);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   272
	if ( hwdata->yuv_use_mitshm ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   273
		yuvshm->shmid = shmget(IPC_PRIVATE, hwdata->image->data_size,
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   274
				       IPC_CREAT | 0777);
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		if ( yuvshm->shmid >= 0 ) {
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			yuvshm->shmaddr = (char *)shmat(yuvshm->shmid, 0, 0);
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			yuvshm->readOnly = False;
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			if ( yuvshm->shmaddr != (char *)-1 ) {
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				shm_error = False;
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				X_handler = XSetErrorHandler(shm_errhandler);
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				XShmAttach(GFX_Display, yuvshm);
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				XSync(GFX_Display, True);
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				XSetErrorHandler(X_handler);
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				if ( shm_error )
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					shmdt(yuvshm->shmaddr);
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			} else {
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				shm_error = True;
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			}
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			shmctl(yuvshm->shmid, IPC_RMID, NULL);
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		} else {
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			shm_error = True;
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		}
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		if ( shm_error ) {
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   294
			XFree(hwdata->image);
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			hwdata->yuv_use_mitshm = 0;
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   296
		} else {
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			hwdata->image->data = yuvshm->shmaddr;
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		}
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   299
	}
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	if ( !hwdata->yuv_use_mitshm )
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#endif /* NO_SHARED_MEMORY */
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	{
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		hwdata->image = SDL_NAME(XvCreateImage)(GFX_Display, xv_port, format,
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							0, width, height);
0
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#ifdef PITCH_WORKAROUND
813
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		if ( hwdata->image != NULL && hwdata->image->pitches[0] != (width*bpp) ) {
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			/* Ajust overlay width according to pitch */ 
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			XFree(hwdata->image);
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			width = hwdata->image->pitches[0] / bpp;
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			hwdata->image = SDL_NAME(XvCreateImage)(GFX_Display, xv_port, format,
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								0, width, height);
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   313
		}
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#endif /* PITCH_WORKAROUND */
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   315
		if ( hwdata->image == NULL ) {
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   316
			SDL_SetError("Couldn't create XVideo image");
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			SDL_FreeYUVOverlay(overlay);
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			return(NULL);
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diff changeset
   319
		}
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   320
		hwdata->image->data = malloc(hwdata->image->data_size);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   321
		if ( hwdata->image->data == NULL ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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   322
			SDL_OutOfMemory();
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   323
			SDL_FreeYUVOverlay(overlay);
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diff changeset
   324
			return(NULL);
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diff changeset
   325
		}
0
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diff changeset
   326
	}
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   327
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   328
	/* Find the pitch and offset values for the overlay */
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   329
	overlay->planes = hwdata->image->num_planes;
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   330
	overlay->pitches = (Uint16 *)malloc(overlay->planes * sizeof(Uint16));
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   331
	overlay->pixels = (Uint8 **)malloc(overlay->planes * sizeof(Uint8 *));
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   332
	if ( !overlay->pitches || !overlay->pixels ) {
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   333
		SDL_OutOfMemory();
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   334
		SDL_FreeYUVOverlay(overlay);
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   335
		return(NULL);
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parents:
diff changeset
   336
	}
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parents:
diff changeset
   337
	for ( i=0; i<overlay->planes; ++i ) {
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   338
		overlay->pitches[i] = hwdata->image->pitches[i];
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   339
		overlay->pixels[i] = (Uint8 *)hwdata->image->data +
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parents:
diff changeset
   340
		                              hwdata->image->offsets[i];
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parents:
diff changeset
   341
	}
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diff changeset
   342
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parents:
diff changeset
   343
#ifdef XFREE86_REFRESH_HACK
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   344
	/* Work around an XFree86 X server bug (?)
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   345
	   We can't perform normal updates in windows that have video
74212992fb08 Initial revision
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diff changeset
   346
	   being output to them.  See SDL_x11image.c for more details.
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parents:
diff changeset
   347
	 */
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diff changeset
   348
	X11_DisableAutoRefresh(this);
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parents:
diff changeset
   349
#endif
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diff changeset
   350
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   351
	/* We're all done.. */
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   352
	return(overlay);
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parents:
diff changeset
   353
}
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parents:
diff changeset
   354
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parents:
diff changeset
   355
int X11_LockYUVOverlay(_THIS, SDL_Overlay *overlay)
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parents:
diff changeset
   356
{
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parents:
diff changeset
   357
	return(0);
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parents:
diff changeset
   358
}
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parents:
diff changeset
   359
74212992fb08 Initial revision
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parents:
diff changeset
   360
void X11_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay)
74212992fb08 Initial revision
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parents:
diff changeset
   361
{
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parents:
diff changeset
   362
	return;
74212992fb08 Initial revision
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parents:
diff changeset
   363
}
74212992fb08 Initial revision
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parents:
diff changeset
   364
74212992fb08 Initial revision
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parents:
diff changeset
   365
int X11_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect)
74212992fb08 Initial revision
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parents:
diff changeset
   366
{
74212992fb08 Initial revision
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parents:
diff changeset
   367
	struct private_yuvhwdata *hwdata;
74212992fb08 Initial revision
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parents:
diff changeset
   368
74212992fb08 Initial revision
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parents:
diff changeset
   369
	hwdata = overlay->hwdata;
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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diff changeset
   370
#ifndef NO_SHARED_MEMORY
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   371
	if ( hwdata->yuv_use_mitshm ) {
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   372
		SDL_NAME(XvShmPutImage)(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
0
74212992fb08 Initial revision
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parents:
diff changeset
   373
	              hwdata->image, 0, 0, overlay->w, overlay->h,
74212992fb08 Initial revision
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parents:
diff changeset
   374
	              dstrect->x, dstrect->y, dstrect->w, dstrect->h, False);
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   375
	}
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   376
	else
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   377
#endif
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   378
	{
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   379
		SDL_NAME(XvPutImage)(GFX_Display, hwdata->port, SDL_Window, SDL_GC,
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   380
				     hwdata->image, 0, 0, overlay->w, overlay->h,
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   381
				     dstrect->x, dstrect->y, dstrect->w, dstrect->h);
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
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parents: 769
diff changeset
   382
	}
0
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parents:
diff changeset
   383
	XSync(GFX_Display, False);
74212992fb08 Initial revision
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parents:
diff changeset
   384
	return(0);
74212992fb08 Initial revision
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parents:
diff changeset
   385
}
74212992fb08 Initial revision
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parents:
diff changeset
   386
74212992fb08 Initial revision
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parents:
diff changeset
   387
void X11_FreeYUVOverlay(_THIS, SDL_Overlay *overlay)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   388
{
74212992fb08 Initial revision
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parents:
diff changeset
   389
	struct private_yuvhwdata *hwdata;
74212992fb08 Initial revision
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parents:
diff changeset
   390
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parents:
diff changeset
   391
	hwdata = overlay->hwdata;
74212992fb08 Initial revision
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parents:
diff changeset
   392
	if ( hwdata ) {
292
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
   393
		SDL_NAME(XvUngrabPort)(GFX_Display, hwdata->port, CurrentTime);
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   394
#ifndef NO_SHARED_MEMORY
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   395
		if ( hwdata->yuv_use_mitshm ) {
0
74212992fb08 Initial revision
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parents:
diff changeset
   396
			XShmDetach(GFX_Display, &hwdata->yuvshm);
74212992fb08 Initial revision
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parents:
diff changeset
   397
			shmdt(hwdata->yuvshm.shmaddr);
74212992fb08 Initial revision
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parents:
diff changeset
   398
		}
813
6a2c6717b386 Added support for remote XVideo (thanks Frederic!)
Sam Lantinga <slouken@libsdl.org>
parents: 769
diff changeset
   399
#endif
0
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parents:
diff changeset
   400
		if ( hwdata->image ) {
74212992fb08 Initial revision
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parents:
diff changeset
   401
			XFree(hwdata->image);
74212992fb08 Initial revision
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parents:
diff changeset
   402
		}
74212992fb08 Initial revision
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parents:
diff changeset
   403
		free(hwdata);
74212992fb08 Initial revision
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parents:
diff changeset
   404
	}
74212992fb08 Initial revision
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parents:
diff changeset
   405
	if ( overlay->pitches ) {
74212992fb08 Initial revision
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parents:
diff changeset
   406
		free(overlay->pitches);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   407
		overlay->pitches = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   408
	}
74212992fb08 Initial revision
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parents:
diff changeset
   409
	if ( overlay->pixels ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   410
		free(overlay->pixels);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   411
		overlay->pixels = NULL;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   412
	}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   413
#ifdef XFREE86_REFRESH_HACK
74212992fb08 Initial revision
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parents:
diff changeset
   414
	X11_EnableAutoRefresh(this);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
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#endif
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}
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#endif /* XFREE86_XV */