2004-10-25 22:09:16 +01:00
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/* $XFree86: xc/lib/GL/glx/glxext.c,v 1.22 2003/12/08 17:35:28 dawes Exp $ */
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/*
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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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/**
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* \file glxext.c
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* GLX protocol interface boot-strap code.
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*
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* Direct rendering support added by Precision Insight, Inc.
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*
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* \author Kevin E. Martin <kevin@precisioninsight.com>
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*/
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#include "packrender.h"
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#include <stdio.h>
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#include <Xext.h>
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#include <extutil.h>
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#include <assert.h>
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#include "indirect_init.h"
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#include "glapi.h"
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#ifdef XTHREADS
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#include "Xthreads.h"
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#endif
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#include "glxextensions.h"
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#include "glcontextmodes.h"
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2004-12-15 17:18:06 +00:00
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#include "glheader.h"
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2004-10-25 22:09:16 +01:00
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#ifdef GLX_DIRECT_RENDERING
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#include <inttypes.h>
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#include <sys/mman.h>
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#include "xf86dri.h"
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#include "sarea.h"
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#include "dri_glx.h"
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#endif
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#include <assert.h>
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#ifdef DEBUG
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void __glXDumpDrawBuffer(__GLXcontext *ctx);
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#endif
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#ifdef USE_SPARC_ASM
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/*
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* This is where our dispatch table's bounds are.
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* And the static mesa_init is taken directly from
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* Mesa's 'sparc.c' initializer.
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*
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* We need something like this here, because this version
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* of openGL/glx never initializes a Mesa context, and so
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* the address of the dispatch table pointer never gets stuffed
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* into the dispatch jump table otherwise.
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*
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* It matters only on SPARC, and only if you are using assembler
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* code instead of C-code indirect dispatch.
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*
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* -- FEM, 04.xii.03
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*/
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extern unsigned int _mesa_sparc_glapi_begin;
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extern unsigned int _mesa_sparc_glapi_end;
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extern void __glapi_sparc_icache_flush(unsigned int *);
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static void _glx_mesa_init_sparc_glapi_relocs(void);
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static int _mesa_sparc_needs_init = 1;
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#define INIT_MESA_SPARC { \
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if(_mesa_sparc_needs_init) { \
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_glx_mesa_init_sparc_glapi_relocs(); \
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_mesa_sparc_needs_init = 0; \
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} \
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}
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#else
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#define INIT_MESA_SPARC
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#endif
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static Bool MakeContextCurrent(Display *dpy, GLXDrawable draw,
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GLXDrawable read, GLXContext gc);
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/*
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** We setup some dummy structures here so that the API can be used
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** even if no context is current.
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*/
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static GLubyte dummyBuffer[__GLX_BUFFER_LIMIT_SIZE];
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/*
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** Dummy context used by small commands when there is no current context.
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** All the
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** gl and glx entry points are designed to operate as nop's when using
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** the dummy context structure.
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*/
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static __GLXcontext dummyContext = {
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&dummyBuffer[0],
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&dummyBuffer[0],
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&dummyBuffer[0],
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&dummyBuffer[__GLX_BUFFER_LIMIT_SIZE],
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sizeof(dummyBuffer),
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};
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/*
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** All indirect rendering contexts will share the same indirect dispatch table.
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*/
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static __GLapi *IndirectAPI = NULL;
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/*
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* Current context management and locking
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*/
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#if defined(GLX_DIRECT_RENDERING) && defined(XTHREADS)
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/* thread safe */
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static GLboolean TSDinitialized = GL_FALSE;
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static xthread_key_t ContextTSD;
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__GLXcontext *__glXGetCurrentContext(void)
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{
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if (!TSDinitialized) {
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xthread_key_create(&ContextTSD, NULL);
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TSDinitialized = GL_TRUE;
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return &dummyContext;
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}
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else {
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void *p;
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xthread_get_specific(ContextTSD, &p);
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if (!p)
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return &dummyContext;
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else
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return (__GLXcontext *) p;
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}
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}
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void __glXSetCurrentContext(__GLXcontext *c)
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{
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if (!TSDinitialized) {
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xthread_key_create(&ContextTSD, NULL);
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TSDinitialized = GL_TRUE;
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}
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xthread_set_specific(ContextTSD, c);
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}
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/* Used by the __glXLock() and __glXUnlock() macros */
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xmutex_rec __glXmutex;
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#else
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/* not thread safe */
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__GLXcontext *__glXcurrentContext = &dummyContext;
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#endif
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/*
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** You can set this cell to 1 to force the gl drawing stuff to be
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** one command per packet
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*/
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int __glXDebug = 0;
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/*
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** forward prototype declarations
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*/
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int __glXCloseDisplay(Display *dpy, XExtCodes *codes);
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static GLboolean FillInVisuals( __GLXscreenConfigs * psc );
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/************************************************************************/
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/* Extension required boiler plate */
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static char *__glXExtensionName = GLX_EXTENSION_NAME;
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XExtensionInfo *__glXExtensionInfo = NULL;
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static /* const */ char *error_list[] = {
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"GLXBadContext",
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"GLXBadContextState",
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"GLXBadDrawable",
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"GLXBadPixmap",
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"GLXBadContextTag",
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"GLXBadCurrentWindow",
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"GLXBadRenderRequest",
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"GLXBadLargeRequest",
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"GLXUnsupportedPrivateRequest",
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};
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int __glXCloseDisplay(Display *dpy, XExtCodes *codes)
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{
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GLXContext gc;
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gc = __glXGetCurrentContext();
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if (dpy == gc->currentDpy) {
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__glXSetCurrentContext(&dummyContext);
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#ifdef GLX_DIRECT_RENDERING
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_glapi_set_dispatch(NULL); /* no-op functions */
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#endif
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__glXFreeContext(gc);
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}
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return XextRemoveDisplay(__glXExtensionInfo, dpy);
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}
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static XEXT_GENERATE_ERROR_STRING(__glXErrorString, __glXExtensionName,
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__GLX_NUMBER_ERRORS, error_list)
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static /* const */ XExtensionHooks __glXExtensionHooks = {
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NULL, /* create_gc */
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NULL, /* copy_gc */
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NULL, /* flush_gc */
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NULL, /* free_gc */
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NULL, /* create_font */
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NULL, /* free_font */
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__glXCloseDisplay, /* close_display */
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NULL, /* wire_to_event */
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NULL, /* event_to_wire */
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NULL, /* error */
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__glXErrorString, /* error_string */
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};
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static
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XEXT_GENERATE_FIND_DISPLAY(__glXFindDisplay, __glXExtensionInfo,
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__glXExtensionName, &__glXExtensionHooks,
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__GLX_NUMBER_EVENTS, NULL)
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/************************************************************************/
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/*
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** Free the per screen configs data as well as the array of
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** __glXScreenConfigs.
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*/
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static void FreeScreenConfigs(__GLXdisplayPrivate *priv)
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{
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__GLXscreenConfigs *psc;
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GLint i, screens;
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/* Free screen configuration information */
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psc = priv->screenConfigs;
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screens = ScreenCount(priv->dpy);
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for (i = 0; i < screens; i++, psc++) {
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if (psc->configs) {
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_gl_context_modes_destroy( psc->configs );
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if(psc->effectiveGLXexts)
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Xfree(psc->effectiveGLXexts);
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if ( psc->old_configs != NULL ) {
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Xfree( psc->old_configs );
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psc->old_configs = NULL;
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psc->numOldConfigs = 0;
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}
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psc->configs = NULL; /* NOTE: just for paranoia */
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}
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#ifdef GLX_DIRECT_RENDERING
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/* Free the direct rendering per screen data */
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if (psc->driScreen.private)
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(*psc->driScreen.destroyScreen)(priv->dpy, i,
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psc->driScreen.private);
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psc->driScreen.private = NULL;
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#endif
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}
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XFree((char*) priv->screenConfigs);
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}
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/*
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** Release the private memory referred to in a display private
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** structure. The caller will free the extension structure.
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*/
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static int __glXFreeDisplayPrivate(XExtData *extension)
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{
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__GLXdisplayPrivate *priv;
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priv = (__GLXdisplayPrivate*) extension->private_data;
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FreeScreenConfigs(priv);
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if(priv->serverGLXvendor) {
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Xfree((char*)priv->serverGLXvendor);
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priv->serverGLXvendor = 0x0; /* to protect against double free's */
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}
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if(priv->serverGLXversion) {
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Xfree((char*)priv->serverGLXversion);
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priv->serverGLXversion = 0x0; /* to protect against double free's */
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}
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#if 0 /* GLX_DIRECT_RENDERING */
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/* Free the direct rendering per display data */
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if (priv->driDisplay.private)
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(*priv->driDisplay.destroyDisplay)(priv->dpy,
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priv->driDisplay.private);
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priv->driDisplay.private = NULL;
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#endif
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#ifdef GLX_DIRECT_RENDERING
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XFree(priv->driDisplay.createScreen);
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#endif
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Xfree((char*) priv);
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return 0;
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}
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/************************************************************************/
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/*
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** Query the version of the GLX extension. This procedure works even if
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** the client extension is not completely set up.
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*/
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static Bool QueryVersion(Display *dpy, int opcode, int *major, int *minor)
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{
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xGLXQueryVersionReq *req;
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xGLXQueryVersionReply reply;
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/* Send the glXQueryVersion request */
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LockDisplay(dpy);
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GetReq(GLXQueryVersion,req);
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req->reqType = opcode;
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req->glxCode = X_GLXQueryVersion;
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req->majorVersion = GLX_MAJOR_VERSION;
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req->minorVersion = GLX_MINOR_VERSION;
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_XReply(dpy, (xReply*) &reply, 0, False);
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UnlockDisplay(dpy);
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SyncHandle();
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if (reply.majorVersion != GLX_MAJOR_VERSION) {
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/*
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** The server does not support the same major release as this
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** client.
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*/
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return GL_FALSE;
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}
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*major = reply.majorVersion;
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*minor = min(reply.minorVersion, GLX_MINOR_VERSION);
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return GL_TRUE;
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}
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/**
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* Determine if a \c __GLcontextModes structure has the right mojo to be
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* converted to a \c __GLXvisualConfig to be sent to an "old" style DRI
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* driver.
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*/
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#define MODE_HAS_MOJO(m) \
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((m)->visualID != GLX_DONT_CARE) \
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&& ((m)->sampleBuffers == 0) \
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&& ((m)->samples == 0) \
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&& (((m)->drawableType & GLX_WINDOW_BIT) != 0) \
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&& (((m)->xRenderable == GL_TRUE) \
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|| ((m)->xRenderable == GLX_DONT_CARE))
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/**
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* Convert the FBConfigs associated with a screen into an array of
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|
|
* \c __GLXvisualConfig structures. These structures are passed into DRI
|
|
|
|
* drivers that use the "old" interface. The old-style drivers had a fairly
|
|
|
|
* strict set of visual types that could be supported. FBConfigs that
|
|
|
|
* cannot be supported are not converted.
|
|
|
|
*
|
|
|
|
* \param psc Screen whose FBConfigs need to be swizzled.
|
|
|
|
*
|
|
|
|
* \returns
|
|
|
|
* If memory could be allocated and at least one FBConfig could be converted
|
|
|
|
* to a \c __GLXvisualConfig structure, \c GL_TRUE is returned. Otherwise,
|
|
|
|
* \c GL_FALSE is returned.
|
|
|
|
*
|
|
|
|
* \todo
|
|
|
|
* When the old DRI driver interface is no longer supported, this function
|
|
|
|
* can be removed.
|
|
|
|
*/
|
|
|
|
static GLboolean
|
|
|
|
FillInVisuals( __GLXscreenConfigs * psc )
|
|
|
|
{
|
|
|
|
__GLcontextModes *modes;
|
|
|
|
int glx_visual_count;
|
|
|
|
|
|
|
|
|
|
|
|
glx_visual_count = 0;
|
|
|
|
for ( modes = psc->configs ; modes != NULL ; modes = modes->next ) {
|
|
|
|
if ( MODE_HAS_MOJO( modes ) ) {
|
|
|
|
glx_visual_count++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
psc->old_configs = (__GLXvisualConfig *)
|
|
|
|
Xmalloc( sizeof( __GLXvisualConfig ) * glx_visual_count );
|
|
|
|
if ( psc->old_configs == NULL ) {
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
glx_visual_count = 0;
|
|
|
|
for ( modes = psc->configs ; modes != NULL ; modes = modes->next ) {
|
|
|
|
if ( MODE_HAS_MOJO( modes ) ) {
|
|
|
|
|
|
|
|
#define COPY_VALUE(src_tag,dst_tag) \
|
|
|
|
psc->old_configs[glx_visual_count]. dst_tag = modes-> src_tag
|
|
|
|
|
|
|
|
COPY_VALUE( visualID, vid );
|
|
|
|
COPY_VALUE( rgbMode, rgba );
|
|
|
|
COPY_VALUE( stereoMode, stereo );
|
|
|
|
COPY_VALUE( doubleBufferMode, doubleBuffer );
|
|
|
|
|
|
|
|
psc->old_configs[glx_visual_count].class =
|
|
|
|
_gl_convert_to_x_visual_type( modes->visualType );
|
|
|
|
|
|
|
|
COPY_VALUE( level, level );
|
|
|
|
COPY_VALUE( numAuxBuffers, auxBuffers );
|
|
|
|
|
|
|
|
COPY_VALUE( redBits, redSize );
|
|
|
|
COPY_VALUE( greenBits, greenSize );
|
|
|
|
COPY_VALUE( blueBits, blueSize );
|
|
|
|
COPY_VALUE( alphaBits, alphaSize );
|
|
|
|
COPY_VALUE( rgbBits, bufferSize );
|
|
|
|
COPY_VALUE( accumRedBits, accumRedSize );
|
|
|
|
COPY_VALUE( accumGreenBits, accumGreenSize );
|
|
|
|
COPY_VALUE( accumBlueBits, accumBlueSize );
|
|
|
|
COPY_VALUE( accumAlphaBits, accumAlphaSize );
|
|
|
|
COPY_VALUE( depthBits, depthSize );
|
|
|
|
COPY_VALUE( stencilBits, stencilSize );
|
|
|
|
|
|
|
|
COPY_VALUE( visualRating, visualRating );
|
|
|
|
COPY_VALUE( transparentPixel, transparentPixel );
|
|
|
|
COPY_VALUE( transparentRed, transparentRed );
|
|
|
|
COPY_VALUE( transparentGreen, transparentGreen );
|
|
|
|
COPY_VALUE( transparentBlue, transparentBlue );
|
|
|
|
COPY_VALUE( transparentAlpha, transparentAlpha );
|
|
|
|
COPY_VALUE( transparentIndex, transparentIndex );
|
|
|
|
|
|
|
|
#undef COPY_VALUE
|
|
|
|
|
|
|
|
glx_visual_count++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
psc->numOldConfigs = glx_visual_count;
|
|
|
|
if ( glx_visual_count == 0 ) {
|
|
|
|
Xfree( psc->old_configs );
|
|
|
|
psc->old_configs = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (glx_visual_count != 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
__glXInitializeVisualConfigFromTags( __GLcontextModes *config, int count,
|
|
|
|
const INT32 *bp, Bool tagged_only,
|
|
|
|
Bool fbconfig_style_tags )
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (!tagged_only) {
|
|
|
|
/* Copy in the first set of properties */
|
|
|
|
config->visualID = *bp++;
|
|
|
|
|
|
|
|
config->visualType = _gl_convert_from_x_visual_type( *bp++ );
|
|
|
|
|
|
|
|
config->rgbMode = *bp++;
|
|
|
|
|
|
|
|
config->redBits = *bp++;
|
|
|
|
config->greenBits = *bp++;
|
|
|
|
config->blueBits = *bp++;
|
|
|
|
config->alphaBits = *bp++;
|
|
|
|
config->accumRedBits = *bp++;
|
|
|
|
config->accumGreenBits = *bp++;
|
|
|
|
config->accumBlueBits = *bp++;
|
|
|
|
config->accumAlphaBits = *bp++;
|
|
|
|
|
|
|
|
config->doubleBufferMode = *bp++;
|
|
|
|
config->stereoMode = *bp++;
|
|
|
|
|
|
|
|
config->rgbBits = *bp++;
|
|
|
|
config->depthBits = *bp++;
|
|
|
|
config->stencilBits = *bp++;
|
|
|
|
config->numAuxBuffers = *bp++;
|
|
|
|
config->level = *bp++;
|
|
|
|
|
|
|
|
count -= __GLX_MIN_CONFIG_PROPS;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Additional properties may be in a list at the end
|
|
|
|
** of the reply. They are in pairs of property type
|
|
|
|
** and property value.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define FETCH_OR_SET(tag) \
|
|
|
|
config-> tag = ( fbconfig_style_tags ) ? *bp++ : 1
|
|
|
|
|
|
|
|
for (i = 0; i < count; i += 2 ) {
|
|
|
|
switch(*bp++) {
|
|
|
|
case GLX_RGBA:
|
|
|
|
FETCH_OR_SET( rgbMode );
|
|
|
|
break;
|
|
|
|
case GLX_BUFFER_SIZE:
|
|
|
|
config->rgbBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_LEVEL:
|
|
|
|
config->level = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_DOUBLEBUFFER:
|
|
|
|
FETCH_OR_SET( doubleBufferMode );
|
|
|
|
break;
|
|
|
|
case GLX_STEREO:
|
|
|
|
FETCH_OR_SET( stereoMode );
|
|
|
|
break;
|
|
|
|
case GLX_AUX_BUFFERS:
|
|
|
|
config->numAuxBuffers = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_RED_SIZE:
|
|
|
|
config->redBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_GREEN_SIZE:
|
|
|
|
config->greenBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_BLUE_SIZE:
|
|
|
|
config->blueBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_ALPHA_SIZE:
|
|
|
|
config->alphaBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_DEPTH_SIZE:
|
|
|
|
config->depthBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_STENCIL_SIZE:
|
|
|
|
config->stencilBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_ACCUM_RED_SIZE:
|
|
|
|
config->accumRedBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_ACCUM_GREEN_SIZE:
|
|
|
|
config->accumGreenBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_ACCUM_BLUE_SIZE:
|
|
|
|
config->accumBlueBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_ACCUM_ALPHA_SIZE:
|
|
|
|
config->accumAlphaBits = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_VISUAL_CAVEAT_EXT:
|
|
|
|
config->visualRating = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_X_VISUAL_TYPE:
|
|
|
|
config->visualType = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_TRANSPARENT_TYPE:
|
|
|
|
config->transparentPixel = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_TRANSPARENT_INDEX_VALUE:
|
|
|
|
config->transparentIndex = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_TRANSPARENT_RED_VALUE:
|
|
|
|
config->transparentRed = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_TRANSPARENT_GREEN_VALUE:
|
|
|
|
config->transparentGreen = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_TRANSPARENT_BLUE_VALUE:
|
|
|
|
config->transparentBlue = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_TRANSPARENT_ALPHA_VALUE:
|
|
|
|
config->transparentAlpha = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_VISUAL_ID:
|
|
|
|
config->visualID = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_DRAWABLE_TYPE:
|
|
|
|
config->drawableType = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_RENDER_TYPE:
|
|
|
|
config->renderType = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_X_RENDERABLE:
|
|
|
|
config->xRenderable = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_FBCONFIG_ID:
|
|
|
|
config->fbconfigID = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_MAX_PBUFFER_WIDTH:
|
|
|
|
config->maxPbufferWidth = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_MAX_PBUFFER_HEIGHT:
|
|
|
|
config->maxPbufferHeight = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_MAX_PBUFFER_PIXELS:
|
|
|
|
config->maxPbufferPixels = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX:
|
|
|
|
config->optimalPbufferWidth = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX:
|
|
|
|
config->optimalPbufferHeight = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_VISUAL_SELECT_GROUP_SGIX:
|
|
|
|
config->visualSelectGroup = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_SWAP_METHOD_OML:
|
|
|
|
config->swapMethod = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_SAMPLE_BUFFERS_SGIS:
|
|
|
|
config->sampleBuffers = *bp++;
|
|
|
|
break;
|
|
|
|
case GLX_SAMPLES_SGIS:
|
|
|
|
config->samples = *bp++;
|
|
|
|
break;
|
|
|
|
case None:
|
|
|
|
i = count;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
config->renderType = (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT;
|
|
|
|
|
|
|
|
config->haveAccumBuffer = ((config->accumRedBits +
|
|
|
|
config->accumGreenBits +
|
|
|
|
config->accumBlueBits +
|
|
|
|
config->accumAlphaBits) > 0);
|
|
|
|
config->haveDepthBuffer = (config->depthBits > 0);
|
|
|
|
config->haveStencilBuffer = (config->stencilBits > 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
static unsigned
|
|
|
|
filter_modes( __GLcontextModes ** server_modes,
|
|
|
|
const __GLcontextModes * driver_modes )
|
|
|
|
{
|
|
|
|
__GLcontextModes * m;
|
|
|
|
__GLcontextModes ** prev_next;
|
|
|
|
const __GLcontextModes * check;
|
|
|
|
unsigned modes_count = 0;
|
|
|
|
|
|
|
|
if ( driver_modes == NULL ) {
|
|
|
|
fprintf(stderr, "libGL warning: 3D driver returned no fbconfigs.\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* For each mode in server_modes, check to see if a matching mode exists
|
|
|
|
* in driver_modes. If not, then the mode is not available.
|
|
|
|
*/
|
|
|
|
|
|
|
|
prev_next = server_modes;
|
|
|
|
for ( m = *prev_next ; m != NULL ; m = *prev_next ) {
|
|
|
|
GLboolean do_delete = GL_TRUE;
|
|
|
|
|
|
|
|
for ( check = driver_modes ; check != NULL ; check = check->next ) {
|
|
|
|
if ( _gl_context_modes_are_same( m, check ) ) {
|
|
|
|
do_delete = GL_FALSE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The 3D has to support all the modes that match the GLX visuals
|
|
|
|
* sent from the X server.
|
|
|
|
*/
|
|
|
|
if ( do_delete && (m->visualID != 0) ) {
|
|
|
|
do_delete = GL_FALSE;
|
|
|
|
|
|
|
|
fprintf(stderr, "libGL warning: 3D driver claims to not support "
|
|
|
|
"visual 0x%02x\n", m->visualID);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( do_delete ) {
|
|
|
|
*prev_next = m->next;
|
|
|
|
|
|
|
|
m->next = NULL;
|
|
|
|
_gl_context_modes_destroy( m );
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
modes_count++;
|
|
|
|
prev_next = & m->next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return modes_count;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Perform the required libGL-side initialization and call the client-side
|
|
|
|
* driver's \c __driCreateNewScreen function.
|
|
|
|
*
|
|
|
|
* \param dpy Display pointer.
|
|
|
|
* \param scrn Screen number on the display.
|
|
|
|
* \param psc DRI screen information.
|
|
|
|
* \param driDpy DRI display information.
|
|
|
|
* \param createNewScreen Pointer to the client-side driver's
|
|
|
|
* \c __driCreateNewScreen function.
|
|
|
|
* \returns A pointer to the \c __DRIscreenPrivate structure returned by
|
|
|
|
* the client-side driver on success, or \c NULL on failure.
|
|
|
|
*
|
|
|
|
* \todo This function needs to be modified to remove context-modes from the
|
|
|
|
* list stored in the \c __GLXscreenConfigsRec to match the list
|
|
|
|
* returned by the client-side driver.
|
|
|
|
*/
|
|
|
|
static void *
|
|
|
|
CallCreateNewScreen(Display *dpy, int scrn, __DRIscreen *psc,
|
|
|
|
__DRIdisplay * driDpy,
|
|
|
|
CreateNewScreenFunc createNewScreen)
|
|
|
|
{
|
|
|
|
__DRIscreenPrivate *psp = NULL;
|
|
|
|
#ifndef GLX_USE_APPLEGL
|
|
|
|
drm_handle_t hSAREA;
|
|
|
|
drmAddress pSAREA;
|
|
|
|
char *BusID;
|
|
|
|
__DRIversion ddx_version;
|
|
|
|
__DRIversion dri_version;
|
|
|
|
__DRIversion drm_version;
|
|
|
|
__DRIframebuffer framebuffer;
|
|
|
|
int fd = -1;
|
|
|
|
int status;
|
|
|
|
const char * err_msg;
|
|
|
|
const char * err_extra;
|
|
|
|
int api_ver = __glXGetInternalVersion();
|
|
|
|
|
|
|
|
|
|
|
|
dri_version.major = driDpy->private->driMajor;
|
|
|
|
dri_version.minor = driDpy->private->driMinor;
|
|
|
|
dri_version.patch = driDpy->private->driPatch;
|
|
|
|
|
|
|
|
|
|
|
|
err_msg = "XF86DRIOpenConnection";
|
|
|
|
err_extra = NULL;
|
|
|
|
|
|
|
|
framebuffer.dev_priv = NULL;
|
|
|
|
|
|
|
|
if (XF86DRIOpenConnection(dpy, scrn, &hSAREA, &BusID)) {
|
|
|
|
fd = drmOpen(NULL,BusID);
|
|
|
|
Xfree(BusID); /* No longer needed */
|
|
|
|
|
|
|
|
err_msg = "open DRM";
|
|
|
|
err_extra = strerror( -fd );
|
|
|
|
|
|
|
|
if (fd >= 0) {
|
|
|
|
drm_magic_t magic;
|
|
|
|
|
|
|
|
err_msg = "drmGetMagic";
|
|
|
|
err_extra = NULL;
|
|
|
|
|
|
|
|
if (!drmGetMagic(fd, &magic)) {
|
|
|
|
drmVersionPtr version = drmGetVersion(fd);
|
|
|
|
if (version) {
|
|
|
|
drm_version.major = version->version_major;
|
|
|
|
drm_version.minor = version->version_minor;
|
|
|
|
drm_version.patch = version->version_patchlevel;
|
|
|
|
drmFreeVersion(version);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
drm_version.major = -1;
|
|
|
|
drm_version.minor = -1;
|
|
|
|
drm_version.patch = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
err_msg = "XF86DRIAuthConnection";
|
|
|
|
if (XF86DRIAuthConnection(dpy, scrn, magic)) {
|
|
|
|
char *driverName;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get device name (like "tdfx") and the ddx version numbers.
|
|
|
|
* We'll check the version in each DRI driver's "createScreen"
|
|
|
|
* function.
|
|
|
|
*/
|
|
|
|
err_msg = "XF86DRIGetClientDriverName";
|
|
|
|
if (XF86DRIGetClientDriverName(dpy, scrn,
|
|
|
|
&ddx_version.major,
|
|
|
|
&ddx_version.minor,
|
|
|
|
&ddx_version.patch,
|
|
|
|
&driverName)) {
|
|
|
|
drm_handle_t hFB;
|
|
|
|
int junk;
|
|
|
|
|
|
|
|
/* No longer needed. */
|
|
|
|
Xfree( driverName );
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get device-specific info. pDevPriv will point to a struct
|
|
|
|
* (such as DRIRADEONRec in xfree86/driver/ati/radeon_dri.h)
|
|
|
|
* that has information about the screen size, depth, pitch,
|
|
|
|
* ancilliary buffers, DRM mmap handles, etc.
|
|
|
|
*/
|
|
|
|
err_msg = "XF86DRIGetDeviceInfo";
|
|
|
|
if (XF86DRIGetDeviceInfo(dpy, scrn,
|
|
|
|
&hFB,
|
|
|
|
&junk,
|
|
|
|
&framebuffer.size,
|
|
|
|
&framebuffer.stride,
|
|
|
|
&framebuffer.dev_priv_size,
|
|
|
|
&framebuffer.dev_priv)) {
|
|
|
|
framebuffer.width = DisplayWidth(dpy, scrn);
|
|
|
|
framebuffer.height = DisplayHeight(dpy, scrn);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Map the framebuffer region.
|
|
|
|
*/
|
|
|
|
status = drmMap(fd, hFB, framebuffer.size,
|
|
|
|
(drmAddressPtr)&framebuffer.base);
|
|
|
|
|
|
|
|
err_msg = "drmMap of framebuffer";
|
|
|
|
err_extra = strerror( -status );
|
|
|
|
|
|
|
|
if ( status == 0 ) {
|
|
|
|
/*
|
|
|
|
* Map the SAREA region. Further mmap regions may be setup in
|
|
|
|
* each DRI driver's "createScreen" function.
|
|
|
|
*/
|
|
|
|
status = drmMap(fd, hSAREA, SAREA_MAX,
|
|
|
|
&pSAREA);
|
|
|
|
|
|
|
|
err_msg = "drmMap of sarea";
|
|
|
|
err_extra = strerror( -status );
|
|
|
|
|
|
|
|
if ( status == 0 ) {
|
|
|
|
__GLcontextModes * driver_modes = NULL;
|
|
|
|
__GLXscreenConfigs *configs = psc->screenConfigs;
|
|
|
|
|
|
|
|
err_msg = "InitDriver";
|
|
|
|
err_extra = NULL;
|
|
|
|
psp = (*createNewScreen)(dpy, scrn,
|
|
|
|
psc,
|
|
|
|
configs->configs,
|
|
|
|
& ddx_version,
|
|
|
|
& dri_version,
|
|
|
|
& drm_version,
|
|
|
|
& framebuffer,
|
|
|
|
pSAREA,
|
|
|
|
fd,
|
|
|
|
api_ver,
|
|
|
|
& driver_modes );
|
|
|
|
|
|
|
|
filter_modes( & configs->configs,
|
|
|
|
driver_modes );
|
|
|
|
_gl_context_modes_destroy( driver_modes );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( psp == NULL ) {
|
|
|
|
if ( pSAREA != MAP_FAILED ) {
|
|
|
|
(void)drmUnmap(pSAREA, SAREA_MAX);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( framebuffer.base != MAP_FAILED ) {
|
|
|
|
(void)drmUnmap((drmAddress)framebuffer.base, framebuffer.size);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( framebuffer.dev_priv != NULL ) {
|
|
|
|
Xfree(framebuffer.dev_priv);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( fd >= 0 ) {
|
|
|
|
(void)drmClose(fd);
|
|
|
|
}
|
|
|
|
|
|
|
|
(void)XF86DRICloseConnection(dpy, scrn);
|
|
|
|
|
|
|
|
if ( err_extra != NULL ) {
|
|
|
|
fprintf(stderr, "libGL error: %s failed (%s)\n", err_msg,
|
|
|
|
err_extra);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
fprintf(stderr, "libGL error: %s failed\n", err_msg );
|
|
|
|
}
|
|
|
|
|
|
|
|
fprintf(stderr, "libGL error: reverting to (slow) indirect rendering\n");
|
|
|
|
}
|
|
|
|
#endif /* !GLX_USE_APPLEGL */
|
|
|
|
|
|
|
|
return psp;
|
|
|
|
}
|
|
|
|
#endif /* GLX_DIRECT_RENDERING */
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Allocate the memory for the per screen configs for each screen.
|
|
|
|
** If that works then fetch the per screen configs data.
|
|
|
|
*/
|
|
|
|
static Bool AllocAndFetchScreenConfigs(Display *dpy, __GLXdisplayPrivate *priv)
|
|
|
|
{
|
|
|
|
xGLXGetVisualConfigsReq *req;
|
|
|
|
xGLXGetFBConfigsReq *fb_req;
|
|
|
|
xGLXVendorPrivateWithReplyReq *vpreq;
|
|
|
|
xGLXGetFBConfigsSGIXReq *sgi_req;
|
|
|
|
xGLXGetVisualConfigsReply reply;
|
|
|
|
__GLXscreenConfigs *psc;
|
|
|
|
__GLcontextModes *config;
|
|
|
|
GLint i, j, nprops, screens;
|
|
|
|
INT32 buf[__GLX_TOTAL_CONFIG], *props;
|
|
|
|
unsigned supported_request = 0;
|
|
|
|
unsigned prop_size;
|
|
|
|
|
|
|
|
/*
|
|
|
|
** First allocate memory for the array of per screen configs.
|
|
|
|
*/
|
|
|
|
screens = ScreenCount(dpy);
|
|
|
|
psc = (__GLXscreenConfigs*) Xmalloc(screens * sizeof(__GLXscreenConfigs));
|
|
|
|
if (!psc) {
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
memset(psc, 0, screens * sizeof(__GLXscreenConfigs));
|
|
|
|
priv->screenConfigs = psc;
|
|
|
|
|
|
|
|
priv->serverGLXversion = __glXGetStringFromServer(dpy, priv->majorOpcode,
|
|
|
|
X_GLXQueryServerString,
|
|
|
|
0, GLX_VERSION);
|
|
|
|
if ( priv->serverGLXversion == NULL ) {
|
|
|
|
FreeScreenConfigs(priv);
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( atof( priv->serverGLXversion ) >= 1.3 ) {
|
|
|
|
supported_request = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Now fetch each screens configs structures. If a screen supports
|
|
|
|
** GL (by returning a numVisuals > 0) then allocate memory for our
|
|
|
|
** config structure and then fill it in.
|
|
|
|
*/
|
|
|
|
for (i = 0; i < screens; i++, psc++) {
|
|
|
|
if ( supported_request != 1 ) {
|
|
|
|
psc->serverGLXexts = __glXGetStringFromServer(dpy, priv->majorOpcode,
|
|
|
|
X_GLXQueryServerString,
|
|
|
|
i, GLX_EXTENSIONS);
|
|
|
|
if ( strstr( psc->serverGLXexts, "GLX_SGIX_fbconfig" ) != NULL ) {
|
|
|
|
supported_request = 2;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
supported_request = 3;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
LockDisplay(dpy);
|
|
|
|
switch( supported_request ) {
|
|
|
|
case 1:
|
|
|
|
GetReq(GLXGetFBConfigs,fb_req);
|
|
|
|
fb_req->reqType = priv->majorOpcode;
|
|
|
|
fb_req->glxCode = X_GLXGetFBConfigs;
|
|
|
|
fb_req->screen = i;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 2:
|
|
|
|
GetReqExtra(GLXVendorPrivateWithReply,
|
|
|
|
sz_xGLXGetFBConfigsSGIXReq-sz_xGLXVendorPrivateWithReplyReq,vpreq);
|
|
|
|
sgi_req = (xGLXGetFBConfigsSGIXReq *) vpreq;
|
|
|
|
sgi_req->reqType = priv->majorOpcode;
|
|
|
|
sgi_req->glxCode = X_GLXVendorPrivateWithReply;
|
|
|
|
sgi_req->vendorCode = X_GLXvop_GetFBConfigsSGIX;
|
|
|
|
sgi_req->screen = i;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 3:
|
|
|
|
GetReq(GLXGetVisualConfigs,req);
|
|
|
|
req->reqType = priv->majorOpcode;
|
|
|
|
req->glxCode = X_GLXGetVisualConfigs;
|
|
|
|
req->screen = i;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!_XReply(dpy, (xReply*) &reply, 0, False)) {
|
|
|
|
/* Something is busted. Punt. */
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
FreeScreenConfigs(priv);
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
if (!reply.numVisuals) {
|
|
|
|
/* This screen does not support GL rendering */
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* FIXME: Is the __GLX_MIN_CONFIG_PROPS test correct for
|
|
|
|
* FIXME: FBconfigs?
|
|
|
|
*/
|
|
|
|
/* Check number of properties */
|
|
|
|
nprops = reply.numProps;
|
|
|
|
if ((nprops < __GLX_MIN_CONFIG_PROPS) ||
|
|
|
|
(nprops > __GLX_MAX_CONFIG_PROPS)) {
|
|
|
|
/* Huh? Not in protocol defined limits. Punt */
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
SyncHandle();
|
|
|
|
FreeScreenConfigs(priv);
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Allocate memory for our config structure */
|
|
|
|
psc->configs = _gl_context_modes_create(reply.numVisuals,
|
|
|
|
sizeof(__GLcontextModes));
|
|
|
|
if (!psc->configs) {
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
SyncHandle();
|
|
|
|
FreeScreenConfigs(priv);
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Allocate memory for the properties, if needed */
|
|
|
|
if ( supported_request != 3 ) {
|
|
|
|
nprops *= 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
prop_size = nprops * __GLX_SIZE_INT32;
|
|
|
|
|
|
|
|
if (prop_size <= sizeof(buf)) {
|
|
|
|
props = buf;
|
|
|
|
} else {
|
|
|
|
props = (INT32 *) Xmalloc(prop_size);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Read each config structure and convert it into our format */
|
|
|
|
config = psc->configs;
|
|
|
|
for (j = 0; j < reply.numVisuals; j++) {
|
|
|
|
assert( config != NULL );
|
|
|
|
_XRead(dpy, (char *)props, prop_size);
|
|
|
|
|
|
|
|
if ( supported_request != 3 ) {
|
|
|
|
config->rgbMode = GL_TRUE;
|
|
|
|
config->drawableType = GLX_WINDOW_BIT;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
config->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT;
|
|
|
|
}
|
|
|
|
|
|
|
|
__glXInitializeVisualConfigFromTags( config, nprops, props,
|
|
|
|
(supported_request != 3),
|
|
|
|
GL_TRUE );
|
|
|
|
if ( config->fbconfigID == GLX_DONT_CARE ) {
|
|
|
|
config->fbconfigID = config->visualID;
|
|
|
|
}
|
|
|
|
config->screen = i;
|
|
|
|
config = config->next;
|
|
|
|
}
|
|
|
|
if (props != buf) {
|
|
|
|
Xfree((char *)props);
|
|
|
|
}
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
/* Initialize per screen dynamic client GLX extensions */
|
|
|
|
psc->ext_list_first_time = GL_TRUE;
|
|
|
|
/* Initialize the direct rendering per screen data and functions */
|
|
|
|
if (priv->driDisplay.private != NULL) {
|
|
|
|
if (priv->driDisplay.createNewScreen &&
|
|
|
|
priv->driDisplay.createNewScreen[i]) {
|
|
|
|
|
|
|
|
psc->driScreen.screenConfigs = (void *)psc;
|
|
|
|
psc->driScreen.private =
|
|
|
|
CallCreateNewScreen(dpy, i, & psc->driScreen,
|
|
|
|
& priv->driDisplay,
|
|
|
|
priv->driDisplay.createNewScreen[i] );
|
|
|
|
}
|
|
|
|
else if (priv->driDisplay.createScreen &&
|
|
|
|
priv->driDisplay.createScreen[i]) {
|
|
|
|
/* screen initialization (bootstrap the driver) */
|
|
|
|
if ( (psc->old_configs == NULL)
|
|
|
|
&& !FillInVisuals(psc) ) {
|
|
|
|
FreeScreenConfigs(priv);
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
psc->driScreen.screenConfigs = (void *)psc;
|
|
|
|
psc->driScreen.private =
|
|
|
|
(*(priv->driDisplay.createScreen[i]))(dpy, i, &psc->driScreen,
|
|
|
|
psc->numOldConfigs,
|
|
|
|
psc->old_configs);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
SyncHandle();
|
|
|
|
return GL_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Initialize the client side extension code.
|
|
|
|
*/
|
|
|
|
__GLXdisplayPrivate *__glXInitialize(Display* dpy)
|
|
|
|
{
|
|
|
|
XExtDisplayInfo *info = __glXFindDisplay(dpy);
|
|
|
|
XExtData **privList, *private, *found;
|
|
|
|
__GLXdisplayPrivate *dpyPriv;
|
|
|
|
XEDataObject dataObj;
|
|
|
|
int major, minor;
|
|
|
|
|
|
|
|
#if defined(GLX_DIRECT_RENDERING) && defined(XTHREADS)
|
|
|
|
{
|
|
|
|
static int firstCall = 1;
|
|
|
|
if (firstCall) {
|
|
|
|
/* initialize the GLX mutexes */
|
|
|
|
xmutex_init(&__glXmutex);
|
|
|
|
firstCall = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
INIT_MESA_SPARC
|
|
|
|
/* The one and only long long lock */
|
|
|
|
__glXLock();
|
|
|
|
|
|
|
|
if (!XextHasExtension(info)) {
|
|
|
|
/* No GLX extension supported by this server. Oh well. */
|
|
|
|
__glXUnlock();
|
|
|
|
XMissingExtension(dpy, __glXExtensionName);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* See if a display private already exists. If so, return it */
|
|
|
|
dataObj.display = dpy;
|
|
|
|
privList = XEHeadOfExtensionList(dataObj);
|
|
|
|
found = XFindOnExtensionList(privList, info->codes->extension);
|
|
|
|
if (found) {
|
|
|
|
__glXUnlock();
|
|
|
|
return (__GLXdisplayPrivate *) found->private_data;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* See if the versions are compatible */
|
|
|
|
if (!QueryVersion(dpy, info->codes->major_opcode, &major, &minor)) {
|
|
|
|
/* The client and server do not agree on versions. Punt. */
|
|
|
|
__glXUnlock();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Allocate memory for all the pieces needed for this buffer.
|
|
|
|
*/
|
|
|
|
private = (XExtData *) Xmalloc(sizeof(XExtData));
|
|
|
|
if (!private) {
|
|
|
|
__glXUnlock();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
dpyPriv = (__GLXdisplayPrivate *) Xmalloc(sizeof(__GLXdisplayPrivate));
|
|
|
|
if (!dpyPriv) {
|
|
|
|
__glXUnlock();
|
|
|
|
Xfree((char*) private);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Init the display private and then read in the screen config
|
|
|
|
** structures from the server.
|
|
|
|
*/
|
|
|
|
dpyPriv->majorOpcode = info->codes->major_opcode;
|
|
|
|
dpyPriv->majorVersion = major;
|
|
|
|
dpyPriv->minorVersion = minor;
|
|
|
|
dpyPriv->dpy = dpy;
|
|
|
|
|
|
|
|
dpyPriv->serverGLXvendor = 0x0;
|
|
|
|
dpyPriv->serverGLXversion = 0x0;
|
|
|
|
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
/*
|
|
|
|
** Initialize the direct rendering per display data and functions.
|
|
|
|
** Note: This _must_ be done before calling any other DRI routines
|
|
|
|
** (e.g., those called in AllocAndFetchScreenConfigs).
|
|
|
|
*/
|
|
|
|
if (getenv("LIBGL_ALWAYS_INDIRECT")) {
|
|
|
|
/* Assinging zero here assures we'll never go direct */
|
|
|
|
dpyPriv->driDisplay.private = 0;
|
|
|
|
dpyPriv->driDisplay.destroyDisplay = 0;
|
|
|
|
dpyPriv->driDisplay.createScreen = 0;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
dpyPriv->driDisplay.private =
|
|
|
|
driCreateDisplay(dpy, &dpyPriv->driDisplay);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (!AllocAndFetchScreenConfigs(dpy, dpyPriv)) {
|
|
|
|
__glXUnlock();
|
|
|
|
Xfree((char*) dpyPriv);
|
|
|
|
Xfree((char*) private);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Fill in the private structure. This is the actual structure that
|
|
|
|
** hangs off of the Display structure. Our private structure is
|
|
|
|
** referred to by this structure. Got that?
|
|
|
|
*/
|
|
|
|
private->number = info->codes->extension;
|
|
|
|
private->next = 0;
|
|
|
|
private->free_private = __glXFreeDisplayPrivate;
|
|
|
|
private->private_data = (char *) dpyPriv;
|
|
|
|
XAddToExtensionList(privList, private);
|
|
|
|
|
|
|
|
if (dpyPriv->majorVersion == 1 && dpyPriv->minorVersion >= 1) {
|
|
|
|
__glXClientInfo(dpy, dpyPriv->majorOpcode);
|
|
|
|
}
|
|
|
|
__glXUnlock();
|
|
|
|
|
|
|
|
return dpyPriv;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Setup for sending a GLX command on dpy. Make sure the extension is
|
|
|
|
** initialized. Try to avoid calling __glXInitialize as its kinda slow.
|
|
|
|
*/
|
|
|
|
CARD8 __glXSetupForCommand(Display *dpy)
|
|
|
|
{
|
|
|
|
GLXContext gc;
|
|
|
|
__GLXdisplayPrivate *priv;
|
|
|
|
|
|
|
|
/* If this thread has a current context, flush its rendering commands */
|
|
|
|
gc = __glXGetCurrentContext();
|
|
|
|
if (gc->currentDpy) {
|
|
|
|
/* Flush rendering buffer of the current context, if any */
|
|
|
|
(void) __glXFlushRenderBuffer(gc, gc->pc);
|
|
|
|
|
|
|
|
if (gc->currentDpy == dpy) {
|
|
|
|
/* Use opcode from gc because its right */
|
|
|
|
INIT_MESA_SPARC
|
|
|
|
return gc->majorOpcode;
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
** Have to get info about argument dpy because it might be to
|
|
|
|
** a different server
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Forced to lookup extension via the slow initialize route */
|
|
|
|
priv = __glXInitialize(dpy);
|
|
|
|
if (!priv) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return priv->majorOpcode;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Flush the drawing command transport buffer.
|
|
|
|
*/
|
|
|
|
GLubyte *__glXFlushRenderBuffer(__GLXcontext *ctx, GLubyte *pc)
|
|
|
|
{
|
|
|
|
Display *dpy;
|
|
|
|
xGLXRenderReq *req;
|
|
|
|
GLint size;
|
|
|
|
|
|
|
|
if (!(dpy = ctx->currentDpy)) {
|
|
|
|
/* Using the dummy context */
|
|
|
|
ctx->pc = ctx->buf;
|
|
|
|
return ctx->pc;
|
|
|
|
}
|
|
|
|
|
|
|
|
size = pc - ctx->buf;
|
|
|
|
if (size) {
|
|
|
|
/* Send the entire buffer as an X request */
|
|
|
|
LockDisplay(dpy);
|
|
|
|
GetReq(GLXRender,req);
|
|
|
|
req->reqType = ctx->majorOpcode;
|
|
|
|
req->glxCode = X_GLXRender;
|
|
|
|
req->contextTag = ctx->currentContextTag;
|
|
|
|
req->length += (size + 3) >> 2;
|
|
|
|
_XSend(dpy, (char *)ctx->buf, size);
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
SyncHandle();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Reset pointer and return it */
|
|
|
|
ctx->pc = ctx->buf;
|
|
|
|
return ctx->pc;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Send a portion of a GLXRenderLarge command to the server. The advantage of
|
|
|
|
* this function over \c __glXSendLargeCommand is that callers can use the
|
|
|
|
* data buffer in the GLX context and may be able to avoid allocating an
|
|
|
|
* extra buffer. The disadvantage is the clients will have to do more
|
|
|
|
* GLX protocol work (i.e., calculating \c totalRequests, etc.).
|
|
|
|
*
|
|
|
|
* \sa __glXSendLargeCommand
|
|
|
|
*
|
|
|
|
* \param gc GLX context
|
|
|
|
* \param requestNumber Which part of the whole command is this? The first
|
|
|
|
* request is 1.
|
|
|
|
* \param totalRequests How many requests will there be?
|
|
|
|
* \param data Command data.
|
|
|
|
* \param dataLen Size, in bytes, of the command data.
|
|
|
|
*/
|
|
|
|
void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber,
|
|
|
|
GLint totalRequests,
|
|
|
|
const GLvoid * data, GLint dataLen)
|
|
|
|
{
|
|
|
|
Display *dpy = gc->currentDpy;
|
|
|
|
xGLXRenderLargeReq *req;
|
|
|
|
|
|
|
|
if ( requestNumber == 1 ) {
|
|
|
|
LockDisplay(dpy);
|
|
|
|
}
|
|
|
|
|
|
|
|
GetReq(GLXRenderLarge,req);
|
|
|
|
req->reqType = gc->majorOpcode;
|
|
|
|
req->glxCode = X_GLXRenderLarge;
|
|
|
|
req->contextTag = gc->currentContextTag;
|
|
|
|
req->length += (dataLen + 3) >> 2;
|
|
|
|
req->requestNumber = requestNumber;
|
|
|
|
req->requestTotal = totalRequests;
|
|
|
|
req->dataBytes = dataLen;
|
|
|
|
Data(dpy, data, dataLen);
|
|
|
|
|
|
|
|
if ( requestNumber == totalRequests ) {
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
SyncHandle();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Send a command that is too large for the GLXRender protocol request.
|
|
|
|
*
|
|
|
|
* Send a large command, one that is too large for some reason to
|
|
|
|
* send using the GLXRender protocol request. One reason to send
|
|
|
|
* a large command is to avoid copying the data.
|
|
|
|
*
|
|
|
|
* \param ctx GLX context
|
|
|
|
* \param header Header data.
|
|
|
|
* \param headerLen Size, in bytes, of the header data. It is assumed that
|
|
|
|
* the header data will always be small enough to fit in
|
|
|
|
* a single X protocol packet.
|
|
|
|
* \param data Command data.
|
|
|
|
* \param dataLen Size, in bytes, of the command data.
|
|
|
|
*/
|
|
|
|
void __glXSendLargeCommand(__GLXcontext *ctx,
|
|
|
|
const GLvoid *header, GLint headerLen,
|
|
|
|
const GLvoid *data, GLint dataLen)
|
|
|
|
{
|
|
|
|
GLint maxSize;
|
|
|
|
GLint totalRequests, requestNumber;
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Calculate the maximum amount of data can be stuffed into a single
|
|
|
|
** packet. sz_xGLXRenderReq is added because bufSize is the maximum
|
|
|
|
** packet size minus sz_xGLXRenderReq.
|
|
|
|
*/
|
|
|
|
maxSize = (ctx->bufSize + sz_xGLXRenderReq) - sz_xGLXRenderLargeReq;
|
|
|
|
totalRequests = 1 + (dataLen / maxSize);
|
|
|
|
if (dataLen % maxSize) totalRequests++;
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Send all of the command, except the large array, as one request.
|
|
|
|
*/
|
|
|
|
assert( headerLen <= maxSize );
|
|
|
|
__glXSendLargeChunk(ctx, 1, totalRequests, header, headerLen);
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Send enough requests until the whole array is sent.
|
|
|
|
*/
|
|
|
|
for ( requestNumber = 2 ; requestNumber <= (totalRequests - 1) ; requestNumber++ ) {
|
|
|
|
__glXSendLargeChunk(ctx, requestNumber, totalRequests, data, maxSize);
|
|
|
|
data = (const GLvoid *) (((const GLubyte *) data) + maxSize);
|
|
|
|
dataLen -= maxSize;
|
|
|
|
assert( dataLen > 0 );
|
|
|
|
}
|
|
|
|
|
|
|
|
assert( dataLen <= maxSize );
|
|
|
|
__glXSendLargeChunk(ctx, requestNumber, totalRequests, data, dataLen);
|
|
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************/
|
|
|
|
|
|
|
|
GLXContext glXGetCurrentContext(void)
|
|
|
|
{
|
|
|
|
GLXContext cx = __glXGetCurrentContext();
|
|
|
|
|
|
|
|
if (cx == &dummyContext) {
|
|
|
|
return NULL;
|
|
|
|
} else {
|
|
|
|
return cx;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
GLXDrawable glXGetCurrentDrawable(void)
|
|
|
|
{
|
|
|
|
GLXContext gc = __glXGetCurrentContext();
|
|
|
|
return gc->currentDrawable;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/************************************************************************/
|
|
|
|
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
/* Return the DRI per screen structure */
|
|
|
|
__DRIscreen *__glXFindDRIScreen(__DRInativeDisplay *dpy, int scrn)
|
|
|
|
{
|
|
|
|
__DRIscreen *pDRIScreen = NULL;
|
|
|
|
XExtDisplayInfo *info = __glXFindDisplay(dpy);
|
|
|
|
XExtData **privList, *found;
|
|
|
|
__GLXdisplayPrivate *dpyPriv;
|
|
|
|
XEDataObject dataObj;
|
|
|
|
|
|
|
|
__glXLock();
|
|
|
|
dataObj.display = dpy;
|
|
|
|
privList = XEHeadOfExtensionList(dataObj);
|
|
|
|
found = XFindOnExtensionList(privList, info->codes->extension);
|
|
|
|
__glXUnlock();
|
|
|
|
|
|
|
|
if (found) {
|
|
|
|
dpyPriv = (__GLXdisplayPrivate *)found->private_data;
|
|
|
|
pDRIScreen = &dpyPriv->screenConfigs[scrn].driScreen;
|
|
|
|
}
|
|
|
|
|
|
|
|
return pDRIScreen;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/************************************************************************/
|
|
|
|
|
|
|
|
static Bool SendMakeCurrentRequest( Display *dpy, CARD8 opcode,
|
|
|
|
GLXContextID gc, GLXContextTag old_gc, GLXDrawable draw, GLXDrawable read,
|
|
|
|
xGLXMakeCurrentReply * reply );
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Sends a GLX protocol message to the specified display to make the context
|
|
|
|
* and the drawables current.
|
|
|
|
*
|
|
|
|
* \param dpy Display to send the message to.
|
|
|
|
* \param opcode Major opcode value for the display.
|
|
|
|
* \param gc_id Context tag for the context to be made current.
|
|
|
|
* \param draw Drawable ID for the "draw" drawable.
|
|
|
|
* \param read Drawable ID for the "read" drawable.
|
|
|
|
* \param reply Space to store the X-server's reply.
|
|
|
|
*
|
|
|
|
* \warning
|
|
|
|
* This function assumes that \c dpy is locked with \c LockDisplay on entry.
|
|
|
|
*/
|
|
|
|
static Bool SendMakeCurrentRequest( Display *dpy, CARD8 opcode,
|
|
|
|
GLXContextID gc_id, GLXContextTag gc_tag,
|
|
|
|
GLXDrawable draw, GLXDrawable read,
|
|
|
|
xGLXMakeCurrentReply * reply )
|
|
|
|
{
|
|
|
|
if ( draw == read ) {
|
|
|
|
xGLXMakeCurrentReq *req;
|
|
|
|
|
|
|
|
GetReq(GLXMakeCurrent,req);
|
|
|
|
req->reqType = opcode;
|
|
|
|
req->glxCode = X_GLXMakeCurrent;
|
|
|
|
req->drawable = draw;
|
|
|
|
req->context = gc_id;
|
|
|
|
req->oldContextTag = gc_tag;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
__GLXdisplayPrivate *priv = __glXInitialize(dpy);
|
|
|
|
|
|
|
|
/* If the server can support the GLX 1.3 version, we should
|
|
|
|
* perfer that. Not only that, some servers support GLX 1.3 but
|
|
|
|
* not the SGI extension.
|
|
|
|
*/
|
|
|
|
|
|
|
|
if ( (priv->majorVersion > 1) || (priv->minorVersion >= 3) ) {
|
|
|
|
xGLXMakeContextCurrentReq *req;
|
|
|
|
|
|
|
|
GetReq(GLXMakeContextCurrent,req);
|
|
|
|
req->reqType = opcode;
|
|
|
|
req->glxCode = X_GLXMakeContextCurrent;
|
|
|
|
req->drawable = draw;
|
|
|
|
req->readdrawable = read;
|
|
|
|
req->context = gc_id;
|
|
|
|
req->oldContextTag = gc_tag;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
xGLXVendorPrivateWithReplyReq *vpreq;
|
|
|
|
xGLXMakeCurrentReadSGIReq *req;
|
|
|
|
|
|
|
|
GetReqExtra(GLXVendorPrivateWithReply,
|
|
|
|
sz_xGLXMakeCurrentReadSGIReq-sz_xGLXVendorPrivateWithReplyReq,vpreq);
|
|
|
|
req = (xGLXMakeCurrentReadSGIReq *)vpreq;
|
|
|
|
req->reqType = opcode;
|
|
|
|
req->glxCode = X_GLXVendorPrivateWithReply;
|
|
|
|
req->vendorCode = X_GLXvop_MakeCurrentReadSGI;
|
|
|
|
req->drawable = draw;
|
|
|
|
req->readable = read;
|
|
|
|
req->context = gc_id;
|
|
|
|
req->oldContextTag = gc_tag;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return _XReply(dpy, (xReply*) reply, 0, False);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static Bool BindContextWrapper( Display *dpy, GLXContext gc,
|
|
|
|
GLXDrawable draw, GLXDrawable read )
|
|
|
|
{
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
if ( gc->driContext.bindContext3 != NULL ) {
|
|
|
|
return (*gc->driContext.bindContext3)(dpy, gc->screen, draw, read,
|
|
|
|
& gc->driContext);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
return (*gc->driContext.bindContext2)(dpy, gc->screen, draw, read,
|
|
|
|
gc);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
return GL_FALSE;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static Bool UnbindContextWrapper( Display *dpy, GLXContext gc )
|
|
|
|
{
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
if ( gc->driContext.unbindContext3 != NULL ) {
|
|
|
|
return (*gc->driContext.unbindContext3)(dpy, gc->screen,
|
|
|
|
gc->currentDrawable,
|
|
|
|
gc->currentReadable,
|
|
|
|
& gc->driContext );
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
return (*gc->driContext.unbindContext2)(dpy, gc->screen,
|
|
|
|
gc->currentDrawable,
|
|
|
|
gc->currentReadable, gc);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
return GL_FALSE;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Make a particular context current.
|
|
|
|
** NOTE: this is in this file so that it can access dummyContext.
|
|
|
|
*/
|
2004-12-15 17:18:06 +00:00
|
|
|
USED static Bool MakeContextCurrent(Display *dpy, GLXDrawable draw,
|
|
|
|
GLXDrawable read, GLXContext gc)
|
2004-10-25 22:09:16 +01:00
|
|
|
{
|
|
|
|
xGLXMakeCurrentReply reply;
|
|
|
|
GLXContext oldGC;
|
|
|
|
CARD8 opcode, oldOpcode;
|
|
|
|
Bool sentRequestToOldDpy = False;
|
|
|
|
Bool bindReturnValue = True;
|
|
|
|
|
|
|
|
opcode = __glXSetupForCommand(dpy);
|
|
|
|
if (!opcode) {
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
** Make sure that the new context has a nonzero ID. In the request,
|
|
|
|
** a zero context ID is used only to mean that we bind to no current
|
|
|
|
** context.
|
|
|
|
*/
|
|
|
|
if ((gc != NULL) && (gc->xid == None)) {
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
oldGC = __glXGetCurrentContext();
|
|
|
|
oldOpcode = (gc == oldGC) ? opcode : __glXSetupForCommand(dpy);
|
|
|
|
if (!oldOpcode) {
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((dpy != oldGC->currentDpy || (gc && gc->isDirect)) &&
|
|
|
|
!oldGC->isDirect && oldGC != &dummyContext) {
|
|
|
|
/*
|
|
|
|
** We are either switching from one dpy to another and have to
|
|
|
|
** send a request to the previous dpy to unbind the previous
|
|
|
|
** context, or we are switching away from a indirect context to
|
|
|
|
** a direct context and have to send a request to the dpy to
|
|
|
|
** unbind the previous context.
|
|
|
|
*/
|
|
|
|
sentRequestToOldDpy = True;
|
|
|
|
LockDisplay(oldGC->currentDpy);
|
|
|
|
if ( ! SendMakeCurrentRequest( oldGC->currentDpy, oldOpcode, None,
|
|
|
|
oldGC->currentContextTag, None, None,
|
|
|
|
&reply ) ) {
|
|
|
|
/* The make current failed. Just return GL_FALSE. */
|
|
|
|
UnlockDisplay(oldGC->currentDpy);
|
|
|
|
SyncHandle();
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
oldGC->currentContextTag = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
/* Unbind the old direct rendering context */
|
|
|
|
if (oldGC->isDirect) {
|
|
|
|
if (oldGC->driContext.private) {
|
|
|
|
if (! UnbindContextWrapper( oldGC->currentDpy, oldGC )) {
|
|
|
|
/* The make current failed. Just return GL_FALSE. */
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
oldGC->currentContextTag = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Bind the direct rendering context to the drawable */
|
|
|
|
if (gc && gc->isDirect) {
|
|
|
|
if (gc->driContext.private) {
|
|
|
|
bindReturnValue = BindContextWrapper( dpy, gc, draw, read );
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
#endif
|
|
|
|
_glapi_check_multithread();
|
|
|
|
/* Send a glXMakeCurrent request to bind the new context. */
|
|
|
|
LockDisplay(dpy);
|
|
|
|
|
|
|
|
bindReturnValue = SendMakeCurrentRequest( dpy, opcode,
|
|
|
|
gc ? gc->xid : None,
|
|
|
|
oldGC->currentContextTag,
|
|
|
|
draw, read, &reply );
|
|
|
|
UnlockDisplay(dpy);
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
if (!bindReturnValue) {
|
|
|
|
/* The make current failed. */
|
|
|
|
if (gc && !gc->isDirect) {
|
|
|
|
SyncHandle();
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
/* If the old context was direct rendering, then re-bind to it. */
|
|
|
|
if (oldGC->isDirect) {
|
|
|
|
if (oldGC->driContext.private) {
|
|
|
|
if (! BindContextWrapper( oldGC->currentDpy, oldGC,
|
|
|
|
oldGC->currentDrawable,
|
|
|
|
oldGC->currentReadable )) {
|
|
|
|
/*
|
|
|
|
** The request failed; this cannot happen with the
|
|
|
|
** current API. If in the future the API is
|
|
|
|
** extended to allow context sharing between
|
|
|
|
** clients, then this may fail (because another
|
|
|
|
** client may have grabbed the context); in that
|
|
|
|
** case, we cannot undo the previous request, and
|
|
|
|
** cannot adhere to the "no-op" behavior.
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
#endif
|
|
|
|
/*
|
|
|
|
** If we had just sent a request to a previous dpy, we have to
|
|
|
|
** undo that request (because if a command fails, it should act
|
|
|
|
** like a no-op) by making current to the previous context and
|
|
|
|
** drawable.
|
|
|
|
*/
|
|
|
|
if (sentRequestToOldDpy) {
|
|
|
|
if ( !SendMakeCurrentRequest( oldGC->currentDpy, oldOpcode,
|
|
|
|
oldGC->xid, 0,
|
|
|
|
oldGC->currentDrawable,
|
|
|
|
oldGC->currentReadable, &reply ) ) {
|
|
|
|
UnlockDisplay(oldGC->currentDpy);
|
|
|
|
SyncHandle();
|
|
|
|
/*
|
|
|
|
** The request failed; this cannot happen with the
|
|
|
|
** current API. If in the future the API is extended to
|
|
|
|
** allow context sharing between clients, then this may
|
|
|
|
** fail (because another client may have grabbed the
|
|
|
|
** context); in that case, we cannot undo the previous
|
|
|
|
** request, and cannot adhere to the "no-op" behavior.
|
|
|
|
*/
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
UnlockDisplay(oldGC->currentDpy);
|
|
|
|
}
|
|
|
|
oldGC->currentContextTag = reply.contextTag;
|
|
|
|
}
|
|
|
|
return GL_FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Update our notion of what is current */
|
|
|
|
__glXLock();
|
|
|
|
if (gc == oldGC) {
|
|
|
|
/*
|
|
|
|
** Even though the contexts are the same the drawable might have
|
|
|
|
** changed. Note that gc cannot be the dummy, and that oldGC
|
|
|
|
** cannot be NULL, therefore if they are the same, gc is not
|
|
|
|
** NULL and not the dummy.
|
|
|
|
*/
|
|
|
|
gc->currentDrawable = draw;
|
|
|
|
gc->currentReadable = read;
|
|
|
|
} else {
|
|
|
|
if (oldGC != &dummyContext) {
|
|
|
|
/* Old current context is no longer current to anybody */
|
|
|
|
oldGC->currentDpy = 0;
|
|
|
|
oldGC->currentDrawable = None;
|
|
|
|
oldGC->currentReadable = None;
|
|
|
|
oldGC->currentContextTag = 0;
|
|
|
|
|
|
|
|
if (oldGC->xid == None) {
|
|
|
|
/*
|
|
|
|
** We are switching away from a context that was
|
|
|
|
** previously destroyed, so we need to free the memory
|
|
|
|
** for the old handle.
|
|
|
|
*/
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
/* Destroy the old direct rendering context */
|
|
|
|
if (oldGC->isDirect) {
|
|
|
|
if (oldGC->driContext.private) {
|
|
|
|
(*oldGC->driContext.destroyContext)
|
|
|
|
(dpy, oldGC->screen, oldGC->driContext.private);
|
|
|
|
oldGC->driContext.private = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
__glXFreeContext(oldGC);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (gc) {
|
|
|
|
__glXSetCurrentContext(gc);
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
if (!gc->isDirect) {
|
|
|
|
if (!IndirectAPI)
|
|
|
|
IndirectAPI = __glXNewIndirectAPI();
|
|
|
|
_glapi_set_dispatch(IndirectAPI);
|
|
|
|
# ifdef GLX_USE_APPLEGL
|
|
|
|
do {
|
|
|
|
extern void XAppleDRIUseIndirectDispatch(void);
|
|
|
|
XAppleDRIUseIndirectDispatch();
|
|
|
|
} while (0);
|
|
|
|
# endif
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
/* if not direct rendering, always need indirect dispatch */
|
|
|
|
if (!IndirectAPI)
|
|
|
|
IndirectAPI = __glXNewIndirectAPI();
|
|
|
|
_glapi_set_dispatch(IndirectAPI);
|
|
|
|
#endif
|
|
|
|
gc->currentDpy = dpy;
|
|
|
|
gc->currentDrawable = draw;
|
|
|
|
gc->currentReadable = read;
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
if (gc->isDirect) reply.contextTag = -1;
|
|
|
|
#endif
|
|
|
|
gc->currentContextTag = reply.contextTag;
|
|
|
|
} else {
|
|
|
|
__glXSetCurrentContext(&dummyContext);
|
|
|
|
#ifdef GLX_DIRECT_RENDERING
|
|
|
|
_glapi_set_dispatch(NULL); /* no-op functions */
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
}
|
|
|
|
__glXUnlock();
|
|
|
|
return GL_TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-12-15 17:18:06 +00:00
|
|
|
PUBLIC Bool GLX_PREFIX(glXMakeCurrent)(Display *dpy, GLXDrawable draw,
|
|
|
|
GLXContext gc)
|
2004-10-25 22:09:16 +01:00
|
|
|
{
|
|
|
|
return MakeContextCurrent( dpy, draw, draw, gc );
|
|
|
|
}
|
|
|
|
|
2004-12-15 17:18:06 +00:00
|
|
|
PUBLIC GLX_ALIAS(Bool, glXMakeCurrentReadSGI,
|
2004-10-25 22:09:16 +01:00
|
|
|
(Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx),
|
|
|
|
(dpy, d, r, ctx), MakeContextCurrent)
|
|
|
|
|
2004-12-15 17:18:06 +00:00
|
|
|
PUBLIC GLX_ALIAS(Bool, glXMakeContextCurrent,
|
2004-10-25 22:09:16 +01:00
|
|
|
(Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx),
|
|
|
|
(dpy, d, r, ctx), MakeContextCurrent)
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
void __glXDumpDrawBuffer(__GLXcontext *ctx)
|
|
|
|
{
|
|
|
|
GLubyte *p = ctx->buf;
|
|
|
|
GLubyte *end = ctx->pc;
|
|
|
|
GLushort opcode, length;
|
|
|
|
|
|
|
|
while (p < end) {
|
|
|
|
/* Fetch opcode */
|
|
|
|
opcode = *((GLushort*) p);
|
|
|
|
length = *((GLushort*) (p + 2));
|
|
|
|
printf("%2x: %5d: ", opcode, length);
|
|
|
|
length -= 4;
|
|
|
|
p += 4;
|
|
|
|
while (length > 0) {
|
|
|
|
printf("%08x ", *((unsigned *) p));
|
|
|
|
p += 4;
|
|
|
|
length -= 4;
|
|
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef USE_SPARC_ASM
|
|
|
|
/*
|
|
|
|
* Used only when we are sparc, using sparc assembler.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void
|
|
|
|
_glx_mesa_init_sparc_glapi_relocs(void)
|
|
|
|
{
|
|
|
|
unsigned int *insn_ptr, *end_ptr;
|
|
|
|
unsigned long disp_addr;
|
|
|
|
|
|
|
|
insn_ptr = &_mesa_sparc_glapi_begin;
|
|
|
|
end_ptr = &_mesa_sparc_glapi_end;
|
|
|
|
disp_addr = (unsigned long) &_glapi_Dispatch;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Verbatim from Mesa sparc.c. It's needed because there doesn't
|
|
|
|
* seem to be a better way to do this:
|
|
|
|
*
|
|
|
|
* UNCONDITIONAL_JUMP ( (*_glapi_Dispatch) + entry_offset )
|
|
|
|
*
|
|
|
|
* This code is patching in the ADDRESS of the pointer to the
|
|
|
|
* dispatch table. Hence, it must be called exactly once, because
|
|
|
|
* that address is not going to change.
|
|
|
|
*
|
|
|
|
* What it points to can change, but Mesa (and hence, we) assume
|
|
|
|
* that there is only one pointer.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
while (insn_ptr < end_ptr) {
|
|
|
|
#if ( defined(__sparc_v9__) && ( !defined(__linux__) || defined(__linux_64__) ) )
|
|
|
|
/*
|
|
|
|
This code patches for 64-bit addresses. This had better
|
|
|
|
not happen for Sparc/Linux, no matter what architecture we
|
|
|
|
are building for. So, don't do this.
|
|
|
|
|
|
|
|
The 'defined(__linux_64__)' is used here as a placeholder for
|
|
|
|
when we do do 64-bit usermode on sparc linux.
|
|
|
|
*/
|
|
|
|
insn_ptr[0] |= (disp_addr >> (32 + 10));
|
|
|
|
insn_ptr[1] |= ((disp_addr & 0xffffffff) >> 10);
|
|
|
|
__glapi_sparc_icache_flush(&insn_ptr[0]);
|
|
|
|
insn_ptr[2] |= ((disp_addr >> 32) & ((1 << 10) - 1));
|
|
|
|
insn_ptr[3] |= (disp_addr & ((1 << 10) - 1));
|
|
|
|
__glapi_sparc_icache_flush(&insn_ptr[2]);
|
|
|
|
insn_ptr += 11;
|
|
|
|
#else
|
|
|
|
insn_ptr[0] |= (disp_addr >> 10);
|
|
|
|
insn_ptr[1] |= (disp_addr & ((1 << 10) - 1));
|
|
|
|
__glapi_sparc_icache_flush(&insn_ptr[0]);
|
|
|
|
insn_ptr += 5;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* sparc ASM in use */
|
|
|
|
|