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