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-rw-r--r--xorg-server/mi/mibank.h112
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diff --git a/xorg-server/mi/mibank.h b/xorg-server/mi/mibank.h
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--- a/xorg-server/mi/mibank.h
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-/*
- * Copyright 1997 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting documentation, and
- * that the name of Marc Aurele La France not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. Marc Aurele La France makes no representations
- * about the suitability of this software for any purpose. It is provided
- * "as-is" without express or implied warranty.
- *
- * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
- * EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-
-#ifndef __MIBANK_H__
-#define __MIBANK_H__ 1
-
-#include "scrnintstr.h"
-
-/*
- * Banking external interface.
- */
-
-/*
- * This is the banking function type. The return value is normally zero.
- * Non-zero returns can be used to implement the likes of scanline interleave,
- * etc.
- */
-typedef int miBankProc(
- ScreenPtr /*pScreen*/,
- unsigned int /*iBank*/
-);
-
-typedef miBankProc *miBankProcPtr;
-
-typedef struct _miBankInfo
-{
- /*
- * Banking refers to the use of one or more apertures (in the server's
- * address space) to access various parts of a potentially larger hardware
- * frame buffer.
- *
- * Three different banking schemes are supported:
- *
- * Single banking is indicated when pBankA and pBankB are equal and all
- * three miBankProcPtr's point to the same function. Here, both reads and
- * writes through the aperture access the same hardware location.
- *
- * Shared banking is indicated when pBankA and pBankB are equal but the
- * source and destination functions differ. Here reads through the
- * aperture do not necessarily access the same hardware location as writes.
- *
- * Double banking is indicated when pBankA and pBankB differ. Here two
- * independent apertures are used to provide read/write access to
- * potentially different hardware locations.
- *
- * Any other combination will result in no banking.
- */
- miBankProcPtr SetSourceBank; /* Set pBankA bank number */
- miBankProcPtr SetDestinationBank; /* Set pBankB bank number */
- miBankProcPtr SetSourceAndDestinationBanks; /* Set both bank numbers */
-
- pointer pBankA; /* First aperture location */
- pointer pBankB; /* First or second aperture location */
-
- /*
- * BankSize is in units of sizeof(char) and is the size of each bank.
- */
- unsigned long BankSize;
-
- /*
- * nBankDepth is the colour depth associated with the maximum number of a
- * pixel's bits that are simultaneously accessible through the frame buffer
- * aperture.
- */
- unsigned int nBankDepth;
-} miBankInfoRec, *miBankInfoPtr;
-
-extern _X_EXPORT Bool
-miInitializeBanking(
- ScreenPtr /*pScreen*/,
- unsigned int /*xsize*/,
- unsigned int /*ysize*/,
- unsigned int /*width*/,
- miBankInfoPtr /*pBankInfo*/
-);
-
-/*
- * This function determines the minimum screen width, given a initial estimate
- * and various screen attributes. DDX needs to determine this width before
- * initializing the screen.
- */
-extern _X_EXPORT int
-miScanLineWidth(
- unsigned int /*xsize*/,
- unsigned int /*ysize*/,
- unsigned int /*width*/,
- unsigned long /*BankSize*/,
- PixmapFormatRec * /*pBankFormat*/,
- unsigned int /*nWidthUnit*/
-);
-
-#endif /* __MIBANK_H__ */