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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/glx/glxutil.c
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Checked in the following released items:
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Diffstat (limited to 'xorg-server/glx/glxutil.c')
-rw-r--r--xorg-server/glx/glxutil.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/xorg-server/glx/glxutil.c b/xorg-server/glx/glxutil.c
new file mode 100644
index 000000000..fc73a02c9
--- /dev/null
+++ b/xorg-server/glx/glxutil.c
@@ -0,0 +1,148 @@
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+**
+** http://oss.sgi.com/projects/FreeB
+**
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+**
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+#define NEED_REPLIES
+#define FONT_PCF
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <string.h>
+
+#include "glxserver.h"
+#include "glxutil.h"
+
+/************************************************************************/
+/* Context stuff */
+
+
+/*
+** associate a context with a drawable
+*/
+void
+__glXAssociateContext(__GLXcontext *glxc)
+{
+ glxc->nextDrawPriv = glxc->drawPriv->drawGlxc;
+ glxc->drawPriv->drawGlxc = glxc;
+
+ __glXRefDrawable(glxc->drawPriv);
+
+
+ glxc->nextReadPriv = glxc->readPriv->readGlxc;
+ glxc->readPriv->readGlxc = glxc;
+
+ __glXRefDrawable(glxc->readPriv);
+}
+
+/*
+** Deassociate a context from a drawable
+*/
+void
+__glXDeassociateContext(__GLXcontext *glxc)
+{
+ __GLXcontext *curr, *prev;
+
+ prev = NULL;
+ if (glxc->drawPriv) {
+ for ( curr = glxc->drawPriv->drawGlxc; curr != NULL
+ ; prev = curr, curr = curr->nextDrawPriv ) {
+ if (curr == glxc) {
+ /* found context. Deassociate. */
+ if (prev == NULL) {
+ glxc->drawPriv->drawGlxc = curr->nextDrawPriv;
+ } else {
+ prev->nextDrawPriv = curr->nextDrawPriv;
+ }
+ curr->nextDrawPriv = NULL;
+ __glXUnrefDrawable(glxc->drawPriv);
+ break;
+ }
+ }
+ }
+
+ prev = NULL;
+ if (glxc->readPriv) {
+ for ( curr = glxc->readPriv->readGlxc
+ ; curr != NULL
+ ; prev = curr, curr = curr->nextReadPriv ) {
+ if (curr == glxc) {
+ /* found context. Deassociate. */
+ if (prev == NULL) {
+ glxc->readPriv->readGlxc = curr->nextReadPriv;
+ } else {
+ prev->nextReadPriv = curr->nextReadPriv;
+ }
+ curr->nextReadPriv = NULL;
+ __glXUnrefDrawable(glxc->readPriv);
+ break;
+ }
+ }
+ }
+}
+
+/*****************************************************************************/
+/* Drawable private stuff */
+
+void
+__glXRefDrawable(__GLXdrawable *glxPriv)
+{
+ glxPriv->refCount++;
+}
+
+void
+__glXUnrefDrawable(__GLXdrawable *glxPriv)
+{
+ glxPriv->refCount--;
+ if (glxPriv->refCount == 0) {
+ /* remove the drawable from the drawable list */
+ FreeResourceByType(glxPriv->drawId, __glXDrawableRes, FALSE);
+ glxPriv->destroy(glxPriv);
+ }
+}
+
+GLboolean
+__glXDrawableInit(__GLXdrawable *drawable,
+ __GLXscreen *screen, DrawablePtr pDraw, int type,
+ XID drawId, __GLXconfig *config)
+{
+ drawable->pDraw = pDraw;
+ drawable->type = type;
+ drawable->drawId = drawId;
+ drawable->refCount = 1;
+ drawable->config = config;
+ drawable->eventMask = 0;
+
+ return GL_TRUE;
+}