Mercurial > sdl-ios-xcode

view src/video/Xext/XME/xme.c @ 1585:980d2a0dc2a3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Date: Tue, 4 Mar 2003 15:05:31 -0800 From: "Jim" Subject: [SDL] Frame Buffer patches... Okay I'm new at patch generation - so please tell me if there's a better way I could have done this. Attached are two patch files generated with 'cvs diff -u' SDL-fb-open-lock.patch applies to SDL_fbvideo.c Modifies the open loop to check /dev/fb/0 found on devfs... Modifies the lock code to return failure if the current virtual terminal is not the one opened for frame buffer writing... Lock would hang forever if switched away (ctrl-alt-F1) ... SDL-fb-mousedrv-screensave.patch applies to SDL_fbevents.c Switches default mouse mode based on SDL_MOUSEDRV - currently only accepts PS2 - otherwise default is MS Mouse. When the screen is switched - exisiting code (wrapped in ifdef SAVE_SCREEN_COTENTS) would save the wrong bit of the screen.... ( I run frame buffer 1600x1200, the size I requested was 800x600 - the save would save the top 800 lines (non biased) and restore them... Adding screen->offset fixed that ) However, if that option is not set, then a call to SDL_UpdateRect (full screen) is made. (which may have had it's contents changed since the screen is not entirely locked because of lock-failure patch) Jim [patches slightly tweaked for SDL 1.2.10]
author Sam Lantinga <slouken@libsdl.org>
date Wed, 22 Mar 2006 07:48:22 +0000
parents 3ba88cb7eb1b
children ecba4bbaf9c2
line wrap: on
line source

/*
 * Copyright 1993-2001 by Xi Graphics, Inc.
 * All Rights Reserved.
 *
 * Please see the LICENSE file accompanying this distribution for licensing 
 * information. 
 *
 * Please send any bug fixes and modifications to src@xig.com.
 *
 * $XiGId: xme.c,v 1.2 2001/11/30 21:56:59 jon Exp $
 *
 */

#define NEED_EVENTS
#define NEED_REPLIES

#include "../../x11/SDL_x11dyn.h"

/*#include <X11/Xlibint.h>*/
#include <X11/Xthreads.h>
#include <X11/Xmd.h>
#include <X11/Xproto.h>
#include <X11/extensions/Xext.h>
#include "../extensions/extutil.h"

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


#define	XIGMISC_PROTOCOL_NAME 		     "XiG-SUNDRY-NONSTANDARD"
#define XIGMISC_MAJOR_VERSION	             2
#define XIGMISC_MINOR_VERSION 	             0

#define XiGMiscNumberEvents	             0

#define	X_XiGMiscQueryVersion		     0
#define	X_XiGMiscQueryViews		     1
#define X_XiGMiscQueryResolutions            2
#define X_XiGMiscChangeResolution            3
#define X_XiGMiscFullScreen                  4

#define sz_xXiGMiscQueryVersionReq	     8
#define sz_xXiGMiscQueryViewsReq	     8
#define sz_xXiGMiscQueryResolutionsReq       8
#define sz_xXiGMiscChangeResolutionReq       16
#define sz_xXiGMiscFullScreenReq             16

#define sz_xXiGMiscQueryVersionReply	     32
#define sz_xXiGMiscQueryViewsReply	     32
#define sz_xXiGMiscQueryResolutionsReply     32
#define sz_xXiGMiscQueryFullScreenReply      32

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

typedef struct {
  CARD8         reqType;                /* always codes->major_opcode        */
  CARD8         xigmiscReqType;         /* always X_XiGMiscQueryVersion      */
  CARD16        length;
  CARD16        major;
  CARD16        minor;
} xXiGMiscQueryVersionReq;

typedef struct {
  CARD8         reqType;                /* always codes->major_opcode        */
  CARD8         xigmiscReqType;         /* always X_XiGMiscQueryViews        */
  CARD16        length;
  CARD8		screen;
  CARD8		pad0;
  CARD16	pad1;
} xXiGMiscQueryViewsReq;

typedef struct {
  CARD8         reqType;                /* always codes->major_opcode        */
  CARD8         xigmiscReqType;         /* always X_XiGMiscQueryResolutions  */
  CARD16        length;
  CARD8		screen;
  CARD8		view;
  CARD16	pad0;
} xXiGMiscQueryResolutionsReq;

typedef struct {
  CARD8         reqType;                /* always codes->major_opcode        */
  CARD8         xigmiscReqType;         /* always X_XiGMiscChangeResolution  */
  CARD16        length;
  CARD8		screen;
  CARD8		view;
  CARD16	pad0;
  CARD16        width;
  CARD16        height;
  INT32         refresh;
} xXiGMiscChangeResolutionReq;

typedef struct {
  CARD8         reqType;                /* always codes->major_opcode        */
  CARD8         xigmiscReqType;         /* always X_XiGMiscFullScreen        */
  CARD16        length;
  CARD8		screen;
  CARD8		pad0;
  CARD16	pad1;
  CARD32	window;
  CARD32	cmap;
} xXiGMiscFullScreenReq;

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

typedef struct {        
  BYTE          type;                   /* X_Reply                           */
  CARD8         pad0;
  CARD16        sequenceNumber;
  CARD32        length;
  CARD16        major;
  CARD16        minor;
  CARD32        pad1;
  CARD32        pad2;
  CARD32        pad3;
  CARD32        pad4;
  CARD32        pad5;
} xXiGMiscQueryVersionReply;

typedef struct {        
  BYTE          type;                   /* X_Reply                           */
  CARD8         pad0;
  CARD16        sequenceNumber;
  CARD32        length;
  CARD32        nviews;
  CARD32        pad1;
  CARD32        pad2;
  CARD32        pad3;
  CARD32        pad4;
  CARD32        pad5;
} xXiGMiscQueryViewsReply;

typedef struct {        
  BYTE          type;                   /* X_Reply                           */
  CARD8         pad0;
  CARD16        sequenceNumber;
  CARD32        length;
  CARD16        active;
  CARD16        nresolutions;
  CARD32        pad1;
  CARD32        pad2;
  CARD32        pad3;
  CARD32        pad4;
  CARD32        pad5;
} xXiGMiscQueryResolutionsReply;

typedef struct {        
  BYTE          type;                   /* X_Reply                           */
  BOOL          success;
  CARD16        sequenceNumber;
  CARD32        length;
  CARD32        pad1;
  CARD32        pad2;
  CARD32        pad3;
  CARD32        pad4;
  CARD32        pad5;
  CARD32        pad6;
} xXiGMiscFullScreenReply;

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

typedef struct {        
  INT16		x;
  INT16		y;
  CARD16	w;
  CARD16	h;
} XiGMiscViewInfo;

typedef struct {        
  CARD16        width;
  CARD16        height;
  INT32         refresh;
} XiGMiscResolutionInfo;

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

static XExtensionInfo *xigmisc_info = NULL;
static char *xigmisc_extension_name = XIGMISC_PROTOCOL_NAME;

#define XiGMiscCheckExtension(dpy,i,val) \
  XextCheckExtension (dpy, i, xigmisc_extension_name, val)
#define XiGMiscSimpleCheckExtension(dpy,i) \
  XextSimpleCheckExtension (dpy, i, xigmisc_extension_name)

#if defined(__STDC__) && !defined(UNIXCPP)
#define XiGMiscGetReq(name,req,info) GetReq (name, req); \
        req->reqType = info->codes->major_opcode; \
        req->xigmiscReqType = X_##name;

#define XiGMiscGetReqExtra(name,n,req,info) GetReqExtra (name, n, req); \
        req->reqType = info->codes->major_opcode; \
        req->xigmicReqType = X_##name;
#else
#define XiGMiscGetReq(name,req,info) GetReq (name, req); \
        req->reqType = info->codes->major_opcode; \
        req->xigmiscReqType = X_/**/name;
#define XiGMiscGetReqExtra(name,n,req,info) GetReqExtra (name, n, req); \
        req->reqType = info->codes->major_opcode; \
        req->xigmiscReqType = X_/**/name;
#endif



/*
 * find_display - locate the display info block
 */
static int XiGMiscCloseDisplay();

static XExtensionHooks xigmisc_extension_hooks = {
    NULL,                               /* create_gc */
    NULL,                               /* copy_gc */
    NULL,                               /* flush_gc */
    NULL,                               /* free_gc */
    NULL,                               /* create_font */
    NULL,                               /* free_font */
    XiGMiscCloseDisplay,                /* close_display */
    NULL,                               /* wire_to_event */
    NULL,                               /* event_to_wire */
    NULL,                               /* error */
    NULL,                               /* error_string */
};


static XEXT_GENERATE_CLOSE_DISPLAY (XiGMiscCloseDisplay, xigmisc_info)

static XEXT_GENERATE_FIND_DISPLAY (XiGMiscFindDisplay, xigmisc_info,
				   xigmisc_extension_name, 
				   &xigmisc_extension_hooks, XiGMiscNumberEvents, NULL)


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

Bool XiGMiscQueryVersion(Display *dpy, int *major, int *minor)
{
  int opcode, event, error;
  xXiGMiscQueryVersionReq *req;
  xXiGMiscQueryVersionReply rep;
  XExtDisplayInfo *info = XiGMiscFindDisplay(dpy);

  if (!XQueryExtension(dpy, XIGMISC_PROTOCOL_NAME, &opcode, &event, &error))
    return xFalse;

  XiGMiscCheckExtension(dpy, info, xFalse);

  LockDisplay (dpy);
  XiGMiscGetReq (XiGMiscQueryVersion, req, info);

  req->major = XIGMISC_MAJOR_VERSION;
  req->minor = XIGMISC_MINOR_VERSION;

  if (!_XReply (dpy, (xReply *)&rep, 0, xTrue)) {
    UnlockDisplay(dpy);
    SyncHandle();
    return xFalse;
  }

  *major = rep.major;
  *minor = rep.minor;
  UnlockDisplay(dpy);
  SyncHandle();

  return xTrue;
}

int XiGMiscQueryViews(Display *dpy, int screen, XiGMiscViewInfo **pviews)
{
  int n, size;
  XiGMiscViewInfo *views;
  xXiGMiscQueryViewsReq *req;
  xXiGMiscQueryViewsReply rep;
  XExtDisplayInfo *info = XiGMiscFindDisplay(dpy);
  XiGMiscCheckExtension(dpy, info, 0);

  LockDisplay (dpy);
  XiGMiscGetReq (XiGMiscQueryViews, req, info);
  req->screen = screen;

  if (!_XReply (dpy, (xReply *)&rep, 0, xFalse)) {
    UnlockDisplay(dpy);
    SyncHandle();
    return 0;
  }

  n = rep.nviews;

  if (n > 0) {
    size = sizeof(XiGMiscViewInfo) * n;
    views = (XiGMiscViewInfo*)Xmalloc(size);
    if (!views) {
      _XEatData(dpy, (unsigned long)size);
      UnlockDisplay(dpy);
      SyncHandle();
      return 0;
    }

    _XReadPad(dpy, (void*)views, size);

    *pviews = views;
  }

  UnlockDisplay(dpy);
  SyncHandle();

  return n;
}

int XiGMiscQueryResolutions(Display *dpy, int screen, int view, int *pactive, XiGMiscResolutionInfo **presolutions)
{
  int n, size;
  XiGMiscResolutionInfo *resolutions;
  xXiGMiscQueryResolutionsReq *req;
  xXiGMiscQueryResolutionsReply rep;
  XExtDisplayInfo *info = XiGMiscFindDisplay(dpy);
  XiGMiscCheckExtension(dpy, info, 0);

  LockDisplay (dpy);
  XiGMiscGetReq (XiGMiscQueryResolutions, req, info);
  req->screen = screen;
  req->view   = view;

  if (!_XReply (dpy, (xReply *)&rep, 0, xFalse)) {
    UnlockDisplay(dpy);
    SyncHandle();
    return 0;
  }

  n = rep.nresolutions;

  if (n > 0) {
    size = sizeof(XiGMiscResolutionInfo) * n;
    resolutions = (XiGMiscResolutionInfo*)Xmalloc(size);
    if (!resolutions) {
      _XEatData(dpy, (unsigned long)size);
      UnlockDisplay(dpy);
      SyncHandle();
      return 0;
    }

    _XReadPad(dpy, (void*)resolutions, size);

    *presolutions = resolutions;
    *pactive = rep.active;
  }

  UnlockDisplay(dpy);
  SyncHandle();

  return n;
}

void XiGMiscChangeResolution(Display *dpy, int screen, int view, int width, int height, int refresh)
{
  xXiGMiscChangeResolutionReq *req;
  XExtDisplayInfo *info = XiGMiscFindDisplay(dpy);

  XiGMiscSimpleCheckExtension(dpy, info);

  LockDisplay (dpy);
  XiGMiscGetReq (XiGMiscChangeResolution, req, info);
  req->screen = screen;
  req->view = view;
  req->width = width;
  req->height = height;
  req->refresh = refresh;

  UnlockDisplay(dpy);
  SyncHandle();
}


Bool XiGMiscFullScreen(Display *dpy, int screen, XID window, XID cmap)
{
  xXiGMiscFullScreenReq *req;
  xXiGMiscFullScreenReply rep;
  XExtDisplayInfo *info = XiGMiscFindDisplay(dpy);

  XiGMiscCheckExtension(dpy, info, xFalse);

  LockDisplay (dpy);
  XiGMiscGetReq (XiGMiscFullScreen, req, info);
  req->screen = screen;
  req->pad0 = 0;
  req->pad1 = 0;
  req->window = window;
  req->cmap = cmap;

  if (!_XReply (dpy, (xReply *)&rep, 0, xTrue)) {
    UnlockDisplay(dpy);
    SyncHandle();
    return xFalse;
  }

  UnlockDisplay(dpy);
  SyncHandle();

  return (rep.success ? xTrue : xFalse);
}