517 lines
13 KiB
C
517 lines
13 KiB
C
/* $XFree86: xc/programs/Xserver/GL/glx/glxext.c,v 1.7 2001/03/21 16:29:36 dawes Exp $
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** The contents of this file are subject to the GLX Public License Version 1.0
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** (the "License"). You may not use this file except in compliance with the
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** License. You may obtain a copy of the License at Silicon Graphics, Inc.,
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** attn: Legal Services, 2011 N. Shoreline Blvd., Mountain View, CA 94043
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** or at http://www.sgi.com/software/opensource/glx/license.html.
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**
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** Software distributed under the License is distributed on an "AS IS"
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** basis. ALL WARRANTIES ARE DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY
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** IMPLIED WARRANTIES OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
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** PURPOSE OR OF NON- INFRINGEMENT. See the License for the specific
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** language governing rights and limitations under the License.
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**
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** The Original Software is GLX version 1.2 source code, released February,
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** 1999. The developer of the Original Software is Silicon Graphics, Inc.
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** Those portions of the Subject Software created by Silicon Graphics, Inc.
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** are Copyright (c) 1991-9 Silicon Graphics, Inc. All Rights Reserved.
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**
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*/
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#include "dmx.h"
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#define NEED_REPLIES
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#include "glxserver.h"
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#include <windowstr.h>
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#include <propertyst.h>
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#include <os.h>
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#include "g_disptab.h"
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#include "glxutil.h"
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#include "glxext.h"
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#include "glxvisuals.h"
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#include "micmap.h"
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#include "glxswap.h"
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/*
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** Forward declarations.
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*/
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static int __glXSwapDispatch(ClientPtr);
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static int __glXDispatch(ClientPtr);
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/*
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** Called when the extension is reset.
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*/
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static void ResetExtension(ExtensionEntry* extEntry)
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{
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__glXFlushContextCache();
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__glXScreenReset();
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SwapBarrierReset();
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}
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/*
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** Initialize the per-client context storage.
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*/
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static void ResetClientState(int clientIndex)
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{
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__GLXclientState *cl = __glXClients[clientIndex];
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Display **keep_be_displays;
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int i;
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if (cl->returnBuf) __glXFree(cl->returnBuf);
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if (cl->currentContexts) __glXFree(cl->currentContexts);
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if (cl->currentDrawables) __glXFree(cl->currentDrawables);
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if (cl->largeCmdBuf) __glXFree(cl->largeCmdBuf);
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for (i=0; i< screenInfo.numScreens; i++) {
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if (cl->be_displays[i])
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XCloseDisplay( cl->be_displays[i] );
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}
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keep_be_displays = cl->be_displays;
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__glXMemset(cl, 0, sizeof(__GLXclientState));
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cl->be_displays = keep_be_displays;
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/*
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** By default, assume that the client supports
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** GLX major version 1 minor version 0 protocol.
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*/
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cl->GLClientmajorVersion = 1;
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cl->GLClientminorVersion = 0;
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if (cl->GLClientextensions) __glXFree(cl->GLClientextensions);
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__glXMemset(cl->be_displays, 0, screenInfo.numScreens * sizeof(Display *));
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}
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/*
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** This procedure is called when the client who created the context goes
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** away OR when glXDestroyContext is called. In either case, all we do is
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** flag that the ID is no longer valid, and (maybe) free the context.
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** use.
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*/
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static int ContextGone(__GLXcontext* cx, XID id)
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{
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cx->idExists = GL_FALSE;
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if (!cx->isCurrent) {
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__glXFreeContext(cx);
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}
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return True;
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}
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/*
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** Free a client's state.
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*/
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static int ClientGone(int clientIndex, XID id)
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{
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__GLXcontext *cx;
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__GLXclientState *cl = __glXClients[clientIndex];
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int i;
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if (cl) {
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/*
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** Free all the contexts that are current for this client.
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*/
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for (i=0; i < cl->numCurrentContexts; i++) {
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cx = cl->currentContexts[i];
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if (cx) {
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cx->isCurrent = GL_FALSE;
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if (!cx->idExists) {
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__glXFreeContext(cx);
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}
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}
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}
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/*
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** Re-initialize the client state structure. Don't free it because
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** we'll probably get another client with this index and use the struct
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** again. There is a maximum of MAXCLIENTS of these structures.
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*/
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ResetClientState(clientIndex);
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}
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return True;
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}
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/*
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** Free a GLX Pixmap.
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*/
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void __glXFreeGLXPixmap( __GLXpixmap *pGlxPixmap )
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{
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if (!pGlxPixmap->idExists &&
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!pGlxPixmap->refcnt) {
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PixmapPtr pPixmap = (PixmapPtr) pGlxPixmap->pDraw;
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/*
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** The DestroyPixmap routine should decrement the refcount and free
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** only if it's zero.
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*/
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(*pGlxPixmap->pScreen->DestroyPixmap)(pPixmap);
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__glXFree(pGlxPixmap->be_xids);
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__glXFree(pGlxPixmap);
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}
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}
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static int PixmapGone(__GLXpixmap *pGlxPixmap, XID id)
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{
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pGlxPixmap->idExists = False;
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__glXFreeGLXPixmap( pGlxPixmap );
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return True;
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}
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void __glXFreeGLXWindow(__glXWindow *pGlxWindow)
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{
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if (!pGlxWindow->idExists && !pGlxWindow->refcnt) {
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WindowPtr pWindow = (WindowPtr) pGlxWindow->pDraw;
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if (LookupIDByType(pWindow->drawable.id, RT_WINDOW) == pWindow) {
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(*pGlxWindow->pScreen->DestroyWindow)(pWindow);
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}
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xfree(pGlxWindow);
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}
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}
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static void WindowGone(__glXWindow *pGlxWindow, XID id)
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{
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pGlxWindow->idExists = False;
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__glXFreeGLXWindow(pGlxWindow);
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}
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void __glXFreeGLXPbuffer(__glXPbuffer *pGlxPbuffer)
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{
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if (!pGlxPbuffer->idExists && !pGlxPbuffer->refcnt) {
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xfree(pGlxPbuffer->be_xids);
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xfree(pGlxPbuffer);
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}
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}
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static void PbufferGone(__glXPbuffer *pGlxPbuffer, XID id)
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{
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pGlxPbuffer->idExists = False;
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__glXFreeGLXPbuffer(pGlxPbuffer);
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}
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/*
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** Free a context.
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*/
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GLboolean __glXFreeContext(__GLXcontext *cx)
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{
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if (cx->idExists || cx->isCurrent) return GL_FALSE;
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if (cx->feedbackBuf) __glXFree(cx->feedbackBuf);
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if (cx->selectBuf) __glXFree(cx->selectBuf);
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if (cx->real_ids) __glXFree(cx->real_ids);
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if (cx->real_vids) __glXFree(cx->real_vids);
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if (cx->pGlxPixmap) {
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/*
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** The previous drawable was a glx pixmap, release it.
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*/
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cx->pGlxPixmap->refcnt--;
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__glXFreeGLXPixmap( cx->pGlxPixmap );
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cx->pGlxPixmap = 0;
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}
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if (cx->pGlxReadPixmap) {
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/*
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** The previous drawable was a glx pixmap, release it.
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*/
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cx->pGlxReadPixmap->refcnt--;
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__glXFreeGLXPixmap( cx->pGlxReadPixmap );
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cx->pGlxReadPixmap = 0;
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}
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if (cx->pGlxWindow) {
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/*
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** The previous drawable was a glx window, release it.
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*/
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cx->pGlxWindow->refcnt--;
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__glXFreeGLXWindow( cx->pGlxWindow );
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cx->pGlxWindow = 0;
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}
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if (cx->pGlxReadWindow) {
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/*
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** The previous drawable was a glx window, release it.
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*/
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cx->pGlxReadWindow->refcnt--;
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__glXFreeGLXWindow( cx->pGlxReadWindow );
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cx->pGlxReadWindow = 0;
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}
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__glXFree(cx);
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if (cx == __glXLastContext) {
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__glXFlushContextCache();
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}
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return GL_TRUE;
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}
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/*
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** Initialize the GLX extension.
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*/
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void GlxExtensionInit(void)
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{
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ExtensionEntry *extEntry;
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int i;
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int glxSupported = 1;
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/*
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// do not initialize GLX extension if GLX is not supported
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// by ALL back-end servers.
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*/
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for (i=0; i<screenInfo.numScreens; i++) {
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glxSupported &= (dmxScreens[i].glxMajorOpcode > 0);
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}
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if (!glxSupported || !dmxGLXProxy) {
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return;
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}
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#ifdef X11R5
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__glXContextRes = CreateNewResourceType(ContextGone);
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__glXClientRes = CreateNewResourceType(ClientGone);
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__glXPixmapRes = CreateNewResourceType(PixmapGone);
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__glXWindowRes = CreateNewResourceType(WindowGone);
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__glXPbufferRes = CreateNewResourceType(PbufferGone);
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#else
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__glXContextRes = CreateNewResourceType((DeleteType)ContextGone);
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__glXClientRes = CreateNewResourceType((DeleteType)ClientGone);
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__glXPixmapRes = CreateNewResourceType((DeleteType)PixmapGone);
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__glXWindowRes = CreateNewResourceType((DeleteType)WindowGone);
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__glXPbufferRes = CreateNewResourceType((DeleteType)PbufferGone);
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#endif
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/*
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** Add extension to server extensions.
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*/
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extEntry = AddExtension(GLX_EXTENSION_NAME, __GLX_NUMBER_EVENTS,
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__GLX_NUMBER_ERRORS, __glXDispatch,
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__glXSwapDispatch, ResetExtension,
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StandardMinorOpcode);
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if (!extEntry) {
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FatalError("__glXExtensionInit: AddExtensions failed\n");
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return;
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}
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/*
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if (!AddExtensionAlias(GLX_EXTENSION_ALIAS, extEntry)) {
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ErrorF("__glXExtensionInit: AddExtensionAlias failed\n");
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return;
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}
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*/
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__glXerrorBase = extEntry->errorBase;
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__glXBadContext = extEntry->errorBase + GLXBadContext;
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__glXBadContextState = extEntry->errorBase + GLXBadContextState;
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__glXBadDrawable = extEntry->errorBase + GLXBadDrawable;
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__glXBadPixmap = extEntry->errorBase + GLXBadPixmap;
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__glXBadContextTag = extEntry->errorBase + GLXBadContextTag;
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__glXBadCurrentWindow = extEntry->errorBase + GLXBadCurrentWindow;
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__glXBadRenderRequest = extEntry->errorBase + GLXBadRenderRequest;
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__glXBadLargeRequest = extEntry->errorBase + GLXBadLargeRequest;
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__glXUnsupportedPrivateRequest = extEntry->errorBase +
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GLXUnsupportedPrivateRequest;
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__glXBadFBConfig = extEntry->errorBase + GLXBadFBConfig;
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__glXBadPbuffer = extEntry->errorBase + GLXBadPbuffer;
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/*
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** Initialize table of client state. There is never a client 0.
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*/
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for (i=1; i <= MAXCLIENTS; i++) {
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__glXClients[i] = 0;
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}
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/*
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** Initialize screen specific data.
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*/
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__glXScreenInit(screenInfo.numScreens);
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/*
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** Initialize swap barrier support.
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*/
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SwapBarrierInit();
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}
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/************************************************************************/
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Bool __glXCoreType(void)
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{
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return 0;
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}
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/************************************************************************/
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void GlxSetVisualConfigs(int nconfigs,
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__GLXvisualConfig *configs, void **privates)
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{
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glxSetVisualConfigs(nconfigs, configs, privates);
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}
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static miInitVisualsProcPtr saveInitVisualsProc;
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Bool GlxInitVisuals(VisualPtr *visualp, DepthPtr *depthp,
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int *nvisualp, int *ndepthp,
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int *rootDepthp, VisualID *defaultVisp,
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unsigned long sizes, int bitsPerRGB,
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int preferredVis)
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{
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Bool ret;
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if (saveInitVisualsProc) {
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ret = saveInitVisualsProc(visualp, depthp, nvisualp, ndepthp,
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rootDepthp, defaultVisp, sizes, bitsPerRGB,
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preferredVis);
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if (!ret)
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return False;
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}
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glxInitVisuals(nvisualp, visualp, defaultVisp, *ndepthp, *depthp,*rootDepthp);
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return True;
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}
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void
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GlxWrapInitVisuals(miInitVisualsProcPtr *initVisProc)
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{
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if (dmxGLXProxy) {
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saveInitVisualsProc = *initVisProc;
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*initVisProc = GlxInitVisuals;
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}
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}
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/************************************************************************/
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void __glXFlushContextCache(void)
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{
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__glXLastContext = 0;
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}
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/************************************************************************/
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/*
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** Top level dispatcher; all commands are executed from here down.
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*/
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static int __glXDispatch(ClientPtr client)
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{
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REQUEST(xGLXSingleReq);
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CARD8 opcode;
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int (*proc)(__GLXclientState *cl, GLbyte *pc);
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__GLXclientState *cl;
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opcode = stuff->glxCode;
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cl = __glXClients[client->index];
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if (!cl) {
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cl = (__GLXclientState *) __glXMalloc(sizeof(__GLXclientState));
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__glXClients[client->index] = cl;
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if (!cl) {
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return BadAlloc;
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}
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__glXMemset(cl, 0, sizeof(__GLXclientState));
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cl->be_displays = (Display **) __glXMalloc( screenInfo.numScreens * sizeof(Display *) );
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if (!cl->be_displays) {
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__glXFree( cl );
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return BadAlloc;
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}
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__glXMemset(cl->be_displays, 0, screenInfo.numScreens * sizeof(Display *));
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}
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if (!cl->inUse) {
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/*
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** This is first request from this client. Associate a resource
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** with the client so we will be notified when the client dies.
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*/
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XID xid = FakeClientID(client->index);
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if (!AddResource( xid, __glXClientRes, (pointer)(long)client->index)) {
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return BadAlloc;
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}
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ResetClientState(client->index);
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cl->largeCmdRequestsTotal = 0;
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cl->inUse = GL_TRUE;
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cl->client = client;
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}
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/*
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** Check for valid opcode.
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*/
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if (opcode >= __GLX_SINGLE_TABLE_SIZE) {
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return BadRequest;
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}
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/*
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** Use the opcode to index into the procedure table.
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*/
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proc = __glXSingleTable[opcode];
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return (*proc)(cl, (GLbyte *) stuff);
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}
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static int __glXSwapDispatch(ClientPtr client)
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{
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REQUEST(xGLXSingleReq);
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CARD8 opcode;
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int (*proc)(__GLXclientState *cl, GLbyte *pc);
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__GLXclientState *cl;
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opcode = stuff->glxCode;
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cl = __glXClients[client->index];
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if (!cl) {
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cl = (__GLXclientState *) __glXMalloc(sizeof(__GLXclientState));
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__glXClients[client->index] = cl;
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if (!cl) {
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return BadAlloc;
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}
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__glXMemset(cl, 0, sizeof(__GLXclientState));
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cl->be_displays = (Display **) __glXMalloc( screenInfo.numScreens * sizeof(Display *) );
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if (!cl->be_displays) {
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__glXFree( cl );
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return BadAlloc;
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}
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__glXMemset(cl->be_displays, 0, screenInfo.numScreens * sizeof(Display *));
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}
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if (!cl->inUse) {
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/*
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** This is first request from this client. Associate a resource
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** with the client so we will be notified when the client dies.
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*/
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XID xid = FakeClientID(client->index);
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if (!AddResource( xid, __glXClientRes, (pointer)(long)client->index)) {
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return BadAlloc;
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}
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ResetClientState(client->index);
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cl->inUse = GL_TRUE;
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cl->client = client;
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}
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/*
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** Check for valid opcode.
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*/
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if (opcode >= __GLX_SINGLE_TABLE_SIZE) {
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return BadRequest;
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}
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/*
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** Use the opcode to index into the procedure table.
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*/
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proc = __glXSwapSingleTable[opcode];
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return (*proc)(cl, (GLbyte *) stuff);
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}
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int __glXNoSuchSingleOpcode(__GLXclientState *cl, GLbyte *pc)
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{
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return BadRequest;
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}
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void __glXNoSuchRenderOpcode(GLbyte *pc)
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{
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return;
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}
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