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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 1.5 2002/12/16 16:19:00 dawes Exp $ */
/*
* Original rewrite:
* Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000
*
* Authors:
* Gareth Hughes <gareth@valinux.com>
*
*/
#include "tdfx_context.h"
#include "tdfx_lock.h"
#include "tdfx_state.h"
#include "tdfx_render.h"
#include "tdfx_texman.h"
#include "tdfx_tris.h"
#include "drirenderbuffer.h"
void tdfxGetLock( tdfxContextPtr fxMesa )
{
__DRIcontextPrivate *cPriv = fxMesa->driContext;
__DRIdrawablePrivate *const drawable = cPriv->driDrawablePriv;
__DRIdrawablePrivate *const readable = cPriv->driReadablePriv;
__DRIscreenPrivate *sPriv = drawable->driScreenPriv;
TDFXSAREAPriv *saPriv = (TDFXSAREAPriv *) (((char *) sPriv->pSAREA) +
fxMesa->fxScreen->sarea_priv_offset);
unsigned int stamp = drawable->lastStamp;
drmGetLock( fxMesa->driFd, fxMesa->hHWContext, 0 );
/* This macro will update drawable's cliprects if needed */
DRI_VALIDATE_DRAWABLE_INFO(sPriv, drawable);
if (drawable != readable) {
DRI_VALIDATE_DRAWABLE_INFO(sPriv, readable);
}
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;
FxI32 stateSize;
fxMesa->Glide.grGet(GR_GLIDE_STATE_SIZE, 4, &stateSize);
state = malloc(stateSize);
fxMesa->Glide.grGlideGetState( state );
fxMesa->Glide.grGlideSetState( state );
free( state );
}
#if 0
if ( saPriv->texOwner != fxMesa->hHWContext ) {
tdfxTMRestoreTextures_NoLock( fxMesa );
}
#endif
if ((*drawable->pStamp != stamp)
|| (saPriv->ctxOwner != fxMesa->hHWContext)) {
driUpdateFramebufferSize(fxMesa->glCtx, drawable);
if (drawable != readable) {
driUpdateFramebufferSize(fxMesa->glCtx, readable);
}
tdfxUpdateClipping(fxMesa->glCtx);
tdfxUploadClipping(fxMesa);
}
DEBUG_LOCK();
}
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