Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 90 insertions, 0 deletions

diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_lock.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_lock.c
new file mode 100644
index 000000000..6bbfb8d3a
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/tdfx/tdfx_lock.c
@@ -0,0 +1,90 @@
+/* -*- 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"
+
+
+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);
+    unsigned int stamp = dPriv->lastStamp;
+
+    drmGetLock( fxMesa->driFd, fxMesa->hHWContext, 0 );
+
+    /* This macro will update dPriv's cliprects if needed */
+    DRI_VALIDATE_DRAWABLE_INFO( 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;
+        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 ( *dPriv->pStamp != stamp || saPriv->ctxOwner != fxMesa->hHWContext ) {
+       tdfxUpdateClipping(fxMesa->glCtx);
+       tdfxUploadClipping(fxMesa);
+    }
+
+    DEBUG_LOCK();
+}