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/* -*- mode: c; c-basic-offset: 3 -*-
*
* Copyright 2000 VA Linux Systems Inc., Fremont, California.
*
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/tdfx_lock.c,v 1.1 2001/03/21 16:14:28 dawes Exp $ */
/*
* Original rewrite:
* Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000
*
* Authors:
* Gareth Hughes <gareth@valinux.com>
*
*/
#include "dri_glide.h"
#include "tdfx_context.h"
#include "tdfx_lock.h"
#include "tdfx_state.h"
#include "tdfx_texman.h"
#include "tdfx_tris.h"
void tdfxGetLock( tdfxContextPtr fxMesa )
{
__DRIcontextPrivate *cPriv = fxMesa->driContext;
__DRIdrawablePrivate *dPriv = cPriv->driDrawablePriv;
__DRIscreenPrivate *sPriv = dPriv->driScreenPriv;
TDFXSAREAPriv *saPriv = (TDFXSAREAPriv *) (((char *) sPriv->pSAREA) +
fxMesa->fxScreen->sarea_priv_offset);
int stamp = dPriv->lastStamp;
int one_rect = (fxMesa->numClipRects <= 1);
drmGetLock( fxMesa->driFd, fxMesa->hHWContext, 0 );
/* This macro will update dPriv's cliprects if needed */
XMESA_VALIDATE_DRAWABLE_INFO( cPriv->display, sPriv, dPriv );
if ( saPriv->fifoOwner != fxMesa->hHWContext ) {
fxMesa->Glide.grDRIImportFifo( saPriv->fifoPtr, saPriv->fifoRead );
}
if ( saPriv->ctxOwner != fxMesa->hHWContext ) {
/* This sequence looks a little odd. Glide mirrors the state, and
* when you get the state you are forcing the mirror to be up to
* date, and then getting a copy from the mirror. You can then force
* that state onto the hardware when you set the state.
*/
void *state;
FxU32 size;
fxMesa->Glide.grGet( GR_GLIDE_STATE_SIZE, 4, &size );
state = malloc( size );
FX_grGlideGetState_NoLock( state );
FX_grGlideSetState_NoLock( state );
free( state );
}
#if 0
if ( saPriv->texOwner != fxMesa->hHWContext ) {
tdfxTMRestoreTextures_NoLock( fxMesa );
}
#endif
if ( *dPriv->pStamp != stamp || saPriv->ctxOwner != fxMesa->hHWContext ) {
tdfxUpdateClipping(fxMesa->glCtx);
tdfxUploadClipping(fxMesa);
}
/* Detect if we have swapped between 1 and >1 cliprects, and change
* triangle funcs if necessary.
*/
if (one_rect != (fxMesa->numClipRects <= 1))
tdfxDDToggleTriCliprects( fxMesa->glCtx );
DEBUG_LOCK();
}
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