xf86dri.c

显驱动 Intel英特尔G45G43G41G35G33G31G965Q963Q965GM965系列显卡最新X.Org驱动2.4.0版For Linux

	SyncHandle();
	TRACE("GetClientDriverName... return False");
	return False;
    }

    *ddxDriverMajorVersion = rep.ddxDriverMajorVersion;
    *ddxDriverMinorVersion = rep.ddxDriverMinorVersion;
    *ddxDriverPatchVersion = rep.ddxDriverPatchVersion;

    if (rep.length) {
	if (!(*clientDriverName =
		(char *)Xcalloc(rep.clientDriverNameLength + 1, 1))) {
	    _XEatData(dpy, ((rep.clientDriverNameLength + 3) & ~3));
	    UnlockDisplay(dpy);
	    SyncHandle();
	    TRACE("GetClientDriverName... return False");
	    return False;
	}
	_XReadPad(dpy, *clientDriverName, rep.clientDriverNameLength);
    } else {
	*clientDriverName = NULL;
    }
    UnlockDisplay(dpy);
    SyncHandle();
    TRACE("GetClientDriverName... return True");
    return True;
}

Bool
uniDRICreateContextWithConfig(Display *dpy, int screen, int configID,
			      XID context, drm_context_t *hHWContext)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86DRICreateContextReply rep;
    xXF86DRICreateContextReq *req;

    TRACE("CreateContext... id %d", context);
    uniDRICheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86DRICreateContext, req);
    req->reqType = info->codes->major_opcode;
    req->driReqType = X_XF86DRICreateContext;
    req->visual = configID;
    req->screen = screen;
    req->context = context;
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
	UnlockDisplay(dpy);
	SyncHandle();
	TRACE("CreateContext... return False");
	return False;
    }
    *hHWContext = rep.hHWContext;
    UnlockDisplay(dpy);
    SyncHandle();
    TRACE("CreateContext... return True");
    return True;
}

Bool
uniDRICreateContext(Display *dpy, int screen, Visual *visual,
		    XID context, drm_context_t *hHWContext)
{
    return uniDRICreateContextWithConfig(dpy, screen,
	   visual->visualid, context, hHWContext);
}

Bool
uniDRIDestroyContext(Display * ndpy, int screen, XID context)
{
    Display *const dpy = (Display *) ndpy;
    XExtDisplayInfo *info = find_display(dpy);
    xXF86DRIDestroyContextReq *req;

    TRACE("DestroyContext... id %d", context);
    uniDRICheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86DRIDestroyContext, req);
    req->reqType = info->codes->major_opcode;
    req->driReqType = X_XF86DRIDestroyContext;
    req->screen = screen;
    req->context = context;
    UnlockDisplay(dpy);
    SyncHandle();
    TRACE("DestroyContext... return True");
    return True;
}

Bool
uniDRICreateDrawable(Display * ndpy, int screen,
    Drawable drawable, drm_drawable_t * hHWDrawable)
{
    Display *const dpy = (Display *) ndpy;
    XExtDisplayInfo *info = find_display(dpy);
    xXF86DRICreateDrawableReply rep;
    xXF86DRICreateDrawableReq *req;

    TRACE("CreateDrawable...");
    uniDRICheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86DRICreateDrawable, req);
    req->reqType = info->codes->major_opcode;
    req->driReqType = X_XF86DRICreateDrawable;
    req->screen = screen;
    req->drawable = drawable;
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
	UnlockDisplay(dpy);
	SyncHandle();
	TRACE("CreateDrawable... return False");
	return False;
    }
    *hHWDrawable = rep.hHWDrawable;
    UnlockDisplay(dpy);
    SyncHandle();
    TRACE("CreateDrawable... return True");
    return True;
}

Bool
uniDRIDestroyDrawable(Display * ndpy, int screen, Drawable drawable)
{
    Display *const dpy = (Display *) ndpy;
    XExtDisplayInfo *info = find_display(dpy);
    xXF86DRIDestroyDrawableReq *req;

    TRACE("DestroyDrawable...");
    uniDRICheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86DRIDestroyDrawable, req);
    req->reqType = info->codes->major_opcode;
    req->driReqType = X_XF86DRIDestroyDrawable;
    req->screen = screen;
    req->drawable = drawable;
    UnlockDisplay(dpy);
    SyncHandle();
    TRACE("DestroyDrawable... return True");
    return True;
}

Bool
uniDRIGetDrawableInfo(Display * dpy, int screen, Drawable drawable,
    unsigned int *index, unsigned int *stamp,
    int *X, int *Y, int *W, int *H,
    int *numClipRects, drm_clip_rect_t ** pClipRects,
    int *backX, int *backY,
    int *numBackClipRects, drm_clip_rect_t ** pBackClipRects)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86DRIGetDrawableInfoReply rep;
    xXF86DRIGetDrawableInfoReq *req;
    int total_rects;

    TRACE("GetDrawableInfo...");
    uniDRICheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86DRIGetDrawableInfo, req);
    req->reqType = info->codes->major_opcode;
    req->driReqType = X_XF86DRIGetDrawableInfo;
    req->screen = screen;
    req->drawable = drawable;

    if (!_XReply(dpy, (xReply *) & rep, 1, xFalse)) {
	UnlockDisplay(dpy);
	SyncHandle();
	TRACE("GetDrawableInfo... return False");
	return False;
    }
    *index = rep.drawableTableIndex;
    *stamp = rep.drawableTableStamp;
    *X = (int)rep.drawableX;
    *Y = (int)rep.drawableY;
    *W = (int)rep.drawableWidth;
    *H = (int)rep.drawableHeight;
    *numClipRects = rep.numClipRects;
    total_rects = *numClipRects;

    *backX = rep.backX;
    *backY = rep.backY;
    *numBackClipRects = rep.numBackClipRects;
    total_rects += *numBackClipRects;

#if 0
    /* Because of the fix in Xserver/GL/dri/xf86dri.c, this check breaks
     * backwards compatibility (Because of the >> 2 shift) but the fix
     * enables multi-threaded apps to work.
     */
    if (rep.length != ((((SIZEOF(xXF86DRIGetDrawableInfoReply) -
			SIZEOF(xGenericReply) +
			total_rects * sizeof(drm_clip_rect_t)) +
		    3) & ~3) >> 2)) {
	_XEatData(dpy, rep.length);
	UnlockDisplay(dpy);
	SyncHandle();
	TRACE("GetDrawableInfo... return False");
	return False;
    }
#endif

    if (*numClipRects) {
	int len = sizeof(drm_clip_rect_t) * (*numClipRects);

	*pClipRects = (drm_clip_rect_t *) Xcalloc(len, 1);
	if (*pClipRects)
	    _XRead(dpy, (char *)*pClipRects, len);
    } else {
	*pClipRects = NULL;
    }

    if (*numBackClipRects) {
	int len = sizeof(drm_clip_rect_t) * (*numBackClipRects);

	*pBackClipRects = (drm_clip_rect_t *) Xcalloc(len, 1);
	if (*pBackClipRects)
	    _XRead(dpy, (char *)*pBackClipRects, len);
    } else {
	*pBackClipRects = NULL;
    }

    UnlockDisplay(dpy);
    SyncHandle();
    TRACE("GetDrawableInfo... return True");
    return True;
}

Bool
uniDRIGetDeviceInfo(Display *dpy, int screen, drm_handle_t *hFrameBuffer,
		    int *fbOrigin, int *fbSize, int *fbStride,
		    int *devPrivateSize, void **pDevPrivate)
{
    XExtDisplayInfo *info = find_display(dpy);
    xXF86DRIGetDeviceInfoReply rep;
    xXF86DRIGetDeviceInfoReq *req;

    TRACE("GetDeviceInfo...");
    uniDRICheckExtension(dpy, info, False);

    LockDisplay(dpy);
    GetReq(XF86DRIGetDeviceInfo, req);
    req->reqType = info->codes->major_opcode;
    req->driReqType = X_XF86DRIGetDeviceInfo;
    req->screen = screen;
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
	UnlockDisplay(dpy);
	SyncHandle();
	TRACE("GetDeviceInfo... return False");
	return False;
    }

    *hFrameBuffer = rep.hFrameBufferLow;
#ifdef LONG64
    if (sizeof(drm_handle_t) == 8) {
	*hFrameBuffer |= ((unsigned long)rep.hFrameBufferHigh) << 32;
    }
#endif

    *fbOrigin = rep.framebufferOrigin;
    *fbSize = rep.framebufferSize;
    *fbStride = rep.framebufferStride;
    *devPrivateSize = rep.devPrivateSize;

    if (rep.length) {
	if (!(*pDevPrivate = (void *)Xcalloc(rep.devPrivateSize, 1))) {
	    _XEatData(dpy, ((rep.devPrivateSize + 3) & ~3));
	    UnlockDisplay(dpy);
	    SyncHandle();
	    TRACE("GetDeviceInfo... return False");
	    return False;
	}
	_XRead(dpy, (char *)*pDevPrivate, rep.devPrivateSize);
    } else {
	*pDevPrivate = NULL;
    }

    UnlockDisplay(dpy);
    SyncHandle();
    TRACE("GetDeviceInfo... return True");
    return True;
}