compsize.c \
eval.c \
glxcmds.c \
+ glxcurrent.c \
glxext.c \
glxextensions.c \
indirect.c \
#ifdef GLX_DIRECT_RENDERING
#include <unistd.h>
-#include <X11/Xlibint.h>
-#include <X11/extensions/Xext.h>
-#include <X11/extensions/extutil.h>
#include <X11/extensions/Xfixes.h>
#include <X11/extensions/Xdamage.h>
#include "glheader.h"
#include "glxclient.h"
+#include "glcontextmodes.h"
#include "xf86dri.h"
#include "sarea.h"
-#include <stdio.h>
#include <dlfcn.h>
#include <sys/types.h>
-#include <stdarg.h>
-#include "glcontextmodes.h"
#include <sys/mman.h>
#include "xf86drm.h"
#include "dri2.h"
#ifdef GLX_DIRECT_RENDERING
#include <unistd.h>
-#include <X11/Xlibint.h>
-#include <X11/extensions/Xext.h>
-#include <X11/extensions/extutil.h>
#include <X11/extensions/Xfixes.h>
#include <X11/extensions/Xdamage.h>
#include "glheader.h"
#include "glxclient.h"
+#include "glcontextmodes.h"
#include "xf86dri.h"
#include "sarea.h"
-#include <stdio.h>
#include <dlfcn.h>
#include <sys/types.h>
-#include <stdarg.h>
-#include "glcontextmodes.h"
#include <sys/mman.h>
#include "xf86drm.h"
extern const char *glXGetDriverConfig (const char *driverName);
-extern Bool __glXWindowExists(Display *dpy, GLXDrawable draw);
-
#endif
/************************************************************************/
};
-void __glXFreeContext(__GLXcontext*);
-
extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*);
extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber,
#endif /* defined( USE_XTHREADS ) || defined( PTHREADS ) */
+extern void __glXSetCurrentContextNull(void);
+
+extern void __glXFreeContext(__GLXcontext*);
+
/*
** Global lock for all threads in this address space using the GLX
* Client-side GLX interface.
*/
-#include <inttypes.h>
#include "glxclient.h"
-#include <X11/extensions/extutil.h>
-#include <X11/extensions/Xext.h>
-#include <assert.h>
-#include <string.h>
#include "glapi.h"
-#ifdef GLX_DIRECT_RENDERING
-#include "indirect_init.h"
-#include <X11/extensions/xf86vmode.h>
-#include "xf86dri.h"
-#endif
#include "glxextensions.h"
#include "glcontextmodes.h"
#include "glheader.h"
+
+#ifdef GLX_DIRECT_RENDERING
#include <sys/time.h>
+#include <X11/extensions/xf86vmode.h>
+#include "xf86dri.h"
+#endif
static const char __glXGLXClientVendorName[] = "SGI";
static const char __glXGLXClientVersion[] = "1.4";
--- /dev/null
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of the License. You may not use
+** this file except in compliance with the License. You may obtain a copy
+** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+**
+** http://oss.sgi.com/projects/FreeB
+**
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+**
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+/**
+ * \file glxcurrent.c
+ * Client-side GLX interface for current context management.
+ */
+
+#include "glxclient.h"
+#include "glapi.h"
+#include "glheader.h"
+#include "indirect_init.h"
+
+#ifdef GLX_DIRECT_RENDERING
+#include "xf86dri.h"
+#endif
+
+/*
+** We setup some dummy structures here so that the API can be used
+** even if no context is current.
+*/
+
+static GLubyte dummyBuffer[__GLX_BUFFER_LIMIT_SIZE];
+
+/*
+** Dummy context used by small commands when there is no current context.
+** All the
+** gl and glx entry points are designed to operate as nop's when using
+** the dummy context structure.
+*/
+static __GLXcontext dummyContext = {
+ &dummyBuffer[0],
+ &dummyBuffer[0],
+ &dummyBuffer[0],
+ &dummyBuffer[__GLX_BUFFER_LIMIT_SIZE],
+ sizeof(dummyBuffer),
+};
+
+
+/*
+** All indirect rendering contexts will share the same indirect dispatch table.
+*/
+static __GLapi *IndirectAPI = NULL;
+
+
+/*
+ * Current context management and locking
+ */
+
+#if defined( USE_XTHREADS )
+
+/* thread safe */
+static GLboolean TSDinitialized = GL_FALSE;
+static xthread_key_t ContextTSD;
+
+_X_HIDDEN __GLXcontext *__glXGetCurrentContext(void)
+{
+ if (!TSDinitialized) {
+ xthread_key_create(&ContextTSD, NULL);
+ TSDinitialized = GL_TRUE;
+ return &dummyContext;
+ }
+ else {
+ void *p;
+ xthread_get_specific(ContextTSD, &p);
+ if (!p)
+ return &dummyContext;
+ else
+ return (__GLXcontext *) p;
+ }
+}
+
+_X_HIDDEN void __glXSetCurrentContext(__GLXcontext *c)
+{
+ if (!TSDinitialized) {
+ xthread_key_create(&ContextTSD, NULL);
+ TSDinitialized = GL_TRUE;
+ }
+ xthread_set_specific(ContextTSD, c);
+}
+
+
+/* Used by the __glXLock() and __glXUnlock() macros */
+_X_HIDDEN xmutex_rec __glXmutex;
+
+#elif defined( PTHREADS )
+
+_X_HIDDEN pthread_mutex_t __glXmutex = PTHREAD_MUTEX_INITIALIZER;
+
+# if defined( GLX_USE_TLS )
+
+/**
+ * Per-thread GLX context pointer.
+ *
+ * \c __glXSetCurrentContext is written is such a way that this pointer can
+ * \b never be \c NULL. This is important! Because of this
+ * \c __glXGetCurrentContext can be implemented as trivial macro.
+ */
+__thread void * __glX_tls_Context __attribute__((tls_model("initial-exec")))
+ = &dummyContext;
+
+_X_HIDDEN void __glXSetCurrentContext( __GLXcontext * c )
+{
+ __glX_tls_Context = (c != NULL) ? c : &dummyContext;
+}
+
+# else
+
+static pthread_once_t once_control = PTHREAD_ONCE_INIT;
+
+/**
+ * Per-thread data key.
+ *
+ * Once \c init_thread_data has been called, the per-thread data key will
+ * take a value of \c NULL. As each new thread is created the default
+ * value, in that thread, will be \c NULL.
+ */
+static pthread_key_t ContextTSD;
+
+/**
+ * Initialize the per-thread data key.
+ *
+ * This function is called \b exactly once per-process (not per-thread!) to
+ * initialize the per-thread data key. This is ideally done using the
+ * \c pthread_once mechanism.
+ */
+static void init_thread_data( void )
+{
+ if ( pthread_key_create( & ContextTSD, NULL ) != 0 ) {
+ perror( "pthread_key_create" );
+ exit( -1 );
+ }
+}
+
+_X_HIDDEN void __glXSetCurrentContext( __GLXcontext * c )
+{
+ pthread_once( & once_control, init_thread_data );
+ pthread_setspecific( ContextTSD, c );
+}
+
+_X_HIDDEN __GLXcontext * __glXGetCurrentContext( void )
+{
+ void * v;
+
+ pthread_once( & once_control, init_thread_data );
+
+ v = pthread_getspecific( ContextTSD );
+ return (v == NULL) ? & dummyContext : (__GLXcontext *) v;
+}
+
+# endif /* defined( GLX_USE_TLS ) */
+
+#elif defined( THREADS )
+
+#error Unknown threading method specified.
+
+#else
+
+/* not thread safe */
+_X_HIDDEN __GLXcontext *__glXcurrentContext = &dummyContext;
+
+#endif
+
+
+_X_HIDDEN void __glXSetCurrentContextNull(void)
+{
+ __glXSetCurrentContext(&dummyContext);
+#ifdef GLX_DIRECT_RENDERING
+ _glapi_set_dispatch(NULL); /* no-op functions */
+#endif
+}
+
+
+/************************************************************************/
+
+PUBLIC GLXContext glXGetCurrentContext(void)
+{
+ GLXContext cx = __glXGetCurrentContext();
+
+ if (cx == &dummyContext) {
+ return NULL;
+ } else {
+ return cx;
+ }
+}
+
+PUBLIC GLXDrawable glXGetCurrentDrawable(void)
+{
+ GLXContext gc = __glXGetCurrentContext();
+ return gc->currentDrawable;
+}
+
+
+/************************************************************************/
+
+/**
+ * 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)
+{
+ Bool ret;
+
+
+ LockDisplay(dpy);
+
+ 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;
+ }
+ }
+
+ ret = _XReply(dpy, (xReply*) reply, 0, False);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ return ret;
+}
+
+
+#ifdef GLX_DIRECT_RENDERING
+static __GLXDRIdrawable *
+FetchDRIDrawable(Display *dpy,
+ GLXDrawable glxDrawable, GLXContext gc, Bool pre13)
+{
+ __GLXdisplayPrivate * const priv = __glXInitialize(dpy);
+ __GLXDRIdrawable *pdraw;
+ __GLXscreenConfigs *psc;
+ XID drawable;
+
+ if (priv == NULL)
+ return NULL;
+
+ psc = &priv->screenConfigs[gc->screen];
+ if (psc->drawHash == NULL)
+ return NULL;
+
+ if (__glxHashLookup(psc->drawHash, glxDrawable, (void *) &pdraw) == 0)
+ return pdraw;
+
+ /* If this is glXMakeCurrent (pre GLX 1.3) we allow creating the
+ * GLX drawable on the fly. Otherwise we pass None as the X
+ * drawable */
+ if (pre13)
+ drawable = glxDrawable;
+ else
+ drawable = None;
+
+ pdraw = psc->driScreen->createDrawable(psc, drawable,
+ glxDrawable, gc->mode);
+ if (__glxHashInsert(psc->drawHash, glxDrawable, pdraw)) {
+ (*pdraw->destroyDrawable)(pdraw);
+ return NULL;
+ }
+
+ return pdraw;
+}
+#endif /* GLX_DIRECT_RENDERING */
+
+
+/**
+ * Make a particular context current.
+ *
+ * \note This is in this file so that it can access dummyContext.
+ */
+static Bool MakeContextCurrent(Display *dpy, GLXDrawable draw,
+ GLXDrawable read, GLXContext gc,
+ Bool pre13)
+{
+ xGLXMakeCurrentReply reply;
+ const GLXContext oldGC = __glXGetCurrentContext();
+ const CARD8 opcode = __glXSetupForCommand(dpy);
+ const CARD8 oldOpcode = ((gc == oldGC) || (oldGC == &dummyContext))
+ ? opcode : __glXSetupForCommand(oldGC->currentDpy);
+ Bool bindReturnValue;
+
+
+ if (!opcode || !oldOpcode) {
+ 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;
+ }
+
+ _glapi_check_multithread();
+
+#ifdef GLX_DIRECT_RENDERING
+ /* Bind the direct rendering context to the drawable */
+ if (gc && gc->driContext) {
+ __GLXDRIdrawable *pdraw = FetchDRIDrawable(dpy, draw, gc, pre13);
+ __GLXDRIdrawable *pread = FetchDRIDrawable(dpy, read, gc, pre13);
+
+ bindReturnValue =
+ (gc->driContext->bindContext) (gc->driContext, pdraw, pread);
+ } else
+#endif
+ {
+ /* Send a glXMakeCurrent request to bind the new context. */
+ bindReturnValue =
+ SendMakeCurrentRequest(dpy, opcode, gc ? gc->xid : None,
+ ((dpy != oldGC->currentDpy) || oldGC->isDirect)
+ ? None : oldGC->currentContextTag,
+ draw, read, &reply);
+ }
+
+
+ if (!bindReturnValue) {
+ return False;
+ }
+
+ if ((dpy != oldGC->currentDpy || (gc && gc->driContext)) &&
+ !oldGC->isDirect && oldGC != &dummyContext) {
+ xGLXMakeCurrentReply dummy_reply;
+
+ /* 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.
+ */
+ (void) SendMakeCurrentRequest(oldGC->currentDpy, oldOpcode, None,
+ oldGC->currentContextTag, None, None,
+ & dummy_reply);
+ }
+#ifdef GLX_DIRECT_RENDERING
+ else if (oldGC->driContext) {
+ oldGC->driContext->unbindContext(oldGC->driContext);
+ }
+#endif
+
+
+ /* 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->driContext) {
+ oldGC->driContext->destroyContext(oldGC->driContext,
+ oldGC->psc,
+ oldGC->createDpy);
+ oldGC->driContext = NULL;
+ }
+#endif
+ __glXFreeContext(oldGC);
+ }
+ }
+ if (gc) {
+ __glXSetCurrentContext(gc);
+
+ gc->currentDpy = dpy;
+ gc->currentDrawable = draw;
+ gc->currentReadable = read;
+
+ if (!gc->driContext) {
+ if (!IndirectAPI)
+ IndirectAPI = __glXNewIndirectAPI();
+ _glapi_set_dispatch(IndirectAPI);
+
+#ifdef GLX_USE_APPLEGL
+ do {
+ extern void XAppleDRIUseIndirectDispatch(void);
+ XAppleDRIUseIndirectDispatch();
+ } while (0);
+#endif
+
+ __GLXattribute *state =
+ (__GLXattribute *)(gc->client_state_private);
+
+ gc->currentContextTag = reply.contextTag;
+ if (state->array_state == NULL) {
+ (void) glGetString(GL_EXTENSIONS);
+ (void) glGetString(GL_VERSION);
+ __glXInitVertexArrayState(gc);
+ }
+ }
+ else {
+ gc->currentContextTag = -1;
+ }
+ } else {
+ __glXSetCurrentContextNull();
+ }
+ }
+ __glXUnlock();
+ return GL_TRUE;
+}
+
+
+PUBLIC Bool glXMakeCurrent(Display *dpy, GLXDrawable draw, GLXContext gc)
+{
+ return MakeContextCurrent(dpy, draw, draw, gc, True);
+}
+
+PUBLIC GLX_ALIAS(Bool, glXMakeCurrentReadSGI,
+ (Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx),
+ (dpy, d, r, ctx, False), MakeContextCurrent)
+
+PUBLIC GLX_ALIAS(Bool, glXMakeContextCurrent,
+ (Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx),
+ (dpy, d, r, ctx, False), MakeContextCurrent)
*/
#include "glxclient.h"
-#include <stdio.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/extutil.h>
-#include <X11/extensions/Xfixes.h>
-#include <X11/extensions/Xdamage.h>
-#include <assert.h>
-#include "indirect_init.h"
#include "glapi.h"
#include "glxextensions.h"
#include "glcontextmodes.h"
#include "glheader.h"
-#ifdef GLX_DIRECT_RENDERING
-#include <inttypes.h>
-#include <sys/mman.h>
-#include "xf86dri.h"
-#include "xf86drm.h"
-#include "sarea.h"
-#endif
-
#ifdef USE_XCB
#include <X11/Xlib-xcb.h>
#include <xcb/xcb.h>
#endif
#ifdef USE_SPARC_ASM
-/*
- * This is where our dispatch table's bounds are.
- * And the static mesa_init is taken directly from
- * Mesa's 'sparc.c' initializer.
- *
- * We need something like this here, because this version
- * of openGL/glx never initializes a Mesa context, and so
- * the address of the dispatch table pointer never gets stuffed
- * into the dispatch jump table otherwise.
- *
- * It matters only on SPARC, and only if you are using assembler
- * code instead of C-code indirect dispatch.
- *
- * -- FEM, 04.xii.03
- */
-extern unsigned int _mesa_sparc_glapi_begin;
-extern unsigned int _mesa_sparc_glapi_end;
-extern void __glapi_sparc_icache_flush(unsigned int *);
static void _glx_mesa_init_sparc_glapi_relocs(void);
static int _mesa_sparc_needs_init = 1;
#define INIT_MESA_SPARC { \
#define INIT_MESA_SPARC
#endif
-/*
-** We setup some dummy structures here so that the API can be used
-** even if no context is current.
-*/
-
-static GLubyte dummyBuffer[__GLX_BUFFER_LIMIT_SIZE];
-
-/*
-** Dummy context used by small commands when there is no current context.
-** All the
-** gl and glx entry points are designed to operate as nop's when using
-** the dummy context structure.
-*/
-static __GLXcontext dummyContext = {
- &dummyBuffer[0],
- &dummyBuffer[0],
- &dummyBuffer[0],
- &dummyBuffer[__GLX_BUFFER_LIMIT_SIZE],
- sizeof(dummyBuffer),
-};
-
-
-/*
-** All indirect rendering contexts will share the same indirect dispatch table.
-*/
-static __GLapi *IndirectAPI = NULL;
-
-
-/*
- * Current context management and locking
- */
-
-#if defined( USE_XTHREADS )
-
-/* thread safe */
-static GLboolean TSDinitialized = GL_FALSE;
-static xthread_key_t ContextTSD;
-
-_X_HIDDEN __GLXcontext *__glXGetCurrentContext(void)
-{
- if (!TSDinitialized) {
- xthread_key_create(&ContextTSD, NULL);
- TSDinitialized = GL_TRUE;
- return &dummyContext;
- }
- else {
- void *p;
- xthread_get_specific(ContextTSD, &p);
- if (!p)
- return &dummyContext;
- else
- return (__GLXcontext *) p;
- }
-}
-
-_X_HIDDEN void __glXSetCurrentContext(__GLXcontext *c)
-{
- if (!TSDinitialized) {
- xthread_key_create(&ContextTSD, NULL);
- TSDinitialized = GL_TRUE;
- }
- xthread_set_specific(ContextTSD, c);
-}
-
-
-/* Used by the __glXLock() and __glXUnlock() macros */
-_X_HIDDEN xmutex_rec __glXmutex;
-
-#elif defined( PTHREADS )
-
-_X_HIDDEN pthread_mutex_t __glXmutex = PTHREAD_MUTEX_INITIALIZER;
-
-# if defined( GLX_USE_TLS )
-
-/**
- * Per-thread GLX context pointer.
- *
- * \c __glXSetCurrentContext is written is such a way that this pointer can
- * \b never be \c NULL. This is important! Because of this
- * \c __glXGetCurrentContext can be implemented as trivial macro.
- */
-__thread void * __glX_tls_Context __attribute__((tls_model("initial-exec")))
- = &dummyContext;
-
-_X_HIDDEN void __glXSetCurrentContext( __GLXcontext * c )
-{
- __glX_tls_Context = (c != NULL) ? c : &dummyContext;
-}
-
-# else
-
-static pthread_once_t once_control = PTHREAD_ONCE_INIT;
-
-/**
- * Per-thread data key.
- *
- * Once \c init_thread_data has been called, the per-thread data key will
- * take a value of \c NULL. As each new thread is created the default
- * value, in that thread, will be \c NULL.
- */
-static pthread_key_t ContextTSD;
-
-/**
- * Initialize the per-thread data key.
- *
- * This function is called \b exactly once per-process (not per-thread!) to
- * initialize the per-thread data key. This is ideally done using the
- * \c pthread_once mechanism.
- */
-static void init_thread_data( void )
-{
- if ( pthread_key_create( & ContextTSD, NULL ) != 0 ) {
- perror( "pthread_key_create" );
- exit( -1 );
- }
-}
-
-_X_HIDDEN void __glXSetCurrentContext( __GLXcontext * c )
-{
- pthread_once( & once_control, init_thread_data );
- pthread_setspecific( ContextTSD, c );
-}
-
-_X_HIDDEN __GLXcontext * __glXGetCurrentContext( void )
-{
- void * v;
-
- pthread_once( & once_control, init_thread_data );
-
- v = pthread_getspecific( ContextTSD );
- return (v == NULL) ? & dummyContext : (__GLXcontext *) v;
-}
-
-# endif /* defined( GLX_USE_TLS ) */
-
-#elif defined( THREADS )
-
-#error Unknown threading method specified.
-
-#else
-
-/* not thread safe */
-_X_HIDDEN __GLXcontext *__glXcurrentContext = &dummyContext;
-
-#endif
-
-
/*
** You can set this cell to 1 to force the gl drawing stuff to be
** one command per packet
gc = __glXGetCurrentContext();
if (dpy == gc->currentDpy) {
- __glXSetCurrentContext(&dummyContext);
-#ifdef GLX_DIRECT_RENDERING
- _glapi_set_dispatch(NULL); /* no-op functions */
-#endif
+ __glXSetCurrentContextNull();
__glXFreeContext(gc);
}
/************************************************************************/
-PUBLIC GLXContext glXGetCurrentContext(void)
-{
- GLXContext cx = __glXGetCurrentContext();
-
- if (cx == &dummyContext) {
- return NULL;
- } else {
- return cx;
- }
-}
-
-PUBLIC GLXDrawable glXGetCurrentDrawable(void)
-{
- GLXContext gc = __glXGetCurrentContext();
- return gc->currentDrawable;
-}
-
-
-/************************************************************************/
-
-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)
-{
- Bool ret;
-
-
- LockDisplay(dpy);
-
- 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;
- }
- }
-
- ret = _XReply(dpy, (xReply*) reply, 0, False);
-
- UnlockDisplay(dpy);
- SyncHandle();
-
- return ret;
-}
-
-
-#ifdef GLX_DIRECT_RENDERING
-static __GLXDRIdrawable *
-FetchDRIDrawable(Display *dpy,
- GLXDrawable glxDrawable, GLXContext gc, Bool pre13)
-{
- __GLXdisplayPrivate * const priv = __glXInitialize(dpy);
- __GLXDRIdrawable *pdraw;
- __GLXscreenConfigs *psc;
- XID drawable;
-
- if (priv == NULL)
- return NULL;
-
- psc = &priv->screenConfigs[gc->screen];
- if (psc->drawHash == NULL)
- return NULL;
-
- if (__glxHashLookup(psc->drawHash, glxDrawable, (void *) &pdraw) == 0)
- return pdraw;
-
- /* If this is glXMakeCurrent (pre GLX 1.3) we allow creating the
- * GLX drawable on the fly. Otherwise we pass None as the X
- * drawable */
- if (pre13)
- drawable = glxDrawable;
- else
- drawable = None;
-
- pdraw = psc->driScreen->createDrawable(psc, drawable,
- glxDrawable, gc->mode);
- if (__glxHashInsert(psc->drawHash, glxDrawable, pdraw)) {
- (*pdraw->destroyDrawable)(pdraw);
- return NULL;
- }
-
- return pdraw;
-}
-#endif /* GLX_DIRECT_RENDERING */
-
-
-/**
- * Make a particular context current.
- *
- * \note This is in this file so that it can access dummyContext.
- */
-static Bool MakeContextCurrent(Display *dpy, GLXDrawable draw,
- GLXDrawable read, GLXContext gc,
- Bool pre13)
-{
- xGLXMakeCurrentReply reply;
- const GLXContext oldGC = __glXGetCurrentContext();
- const CARD8 opcode = __glXSetupForCommand(dpy);
- const CARD8 oldOpcode = ((gc == oldGC) || (oldGC == &dummyContext))
- ? opcode : __glXSetupForCommand(oldGC->currentDpy);
- Bool bindReturnValue;
-
-
- if (!opcode || !oldOpcode) {
- 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;
- }
-
- _glapi_check_multithread();
-
-#ifdef GLX_DIRECT_RENDERING
- /* Bind the direct rendering context to the drawable */
- if (gc && gc->driContext) {
- __GLXDRIdrawable *pdraw = FetchDRIDrawable(dpy, draw, gc, pre13);
- __GLXDRIdrawable *pread = FetchDRIDrawable(dpy, read, gc, pre13);
-
- bindReturnValue =
- (gc->driContext->bindContext) (gc->driContext, pdraw, pread);
- } else
-#endif
- {
- /* Send a glXMakeCurrent request to bind the new context. */
- bindReturnValue =
- SendMakeCurrentRequest(dpy, opcode, gc ? gc->xid : None,
- ((dpy != oldGC->currentDpy) || oldGC->isDirect)
- ? None : oldGC->currentContextTag,
- draw, read, &reply);
- }
-
-
- if (!bindReturnValue) {
- return False;
- }
-
- if ((dpy != oldGC->currentDpy || (gc && gc->driContext)) &&
- !oldGC->isDirect && oldGC != &dummyContext) {
- xGLXMakeCurrentReply dummy_reply;
-
- /* 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.
- */
- (void) SendMakeCurrentRequest(oldGC->currentDpy, oldOpcode, None,
- oldGC->currentContextTag, None, None,
- & dummy_reply);
- }
-#ifdef GLX_DIRECT_RENDERING
- else if (oldGC->driContext) {
- oldGC->driContext->unbindContext(oldGC->driContext);
- }
-#endif
-
-
- /* 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->driContext) {
- oldGC->driContext->destroyContext(oldGC->driContext,
- oldGC->psc,
- oldGC->createDpy);
- oldGC->driContext = NULL;
- }
-#endif
- __glXFreeContext(oldGC);
- }
- }
- if (gc) {
- __glXSetCurrentContext(gc);
-
- gc->currentDpy = dpy;
- gc->currentDrawable = draw;
- gc->currentReadable = read;
-
- if (!gc->driContext) {
- if (!IndirectAPI)
- IndirectAPI = __glXNewIndirectAPI();
- _glapi_set_dispatch(IndirectAPI);
-
-#ifdef GLX_USE_APPLEGL
- do {
- extern void XAppleDRIUseIndirectDispatch(void);
- XAppleDRIUseIndirectDispatch();
- } while (0);
-#endif
-
- __GLXattribute *state =
- (__GLXattribute *)(gc->client_state_private);
-
- gc->currentContextTag = reply.contextTag;
- if (state->array_state == NULL) {
- (void) glGetString(GL_EXTENSIONS);
- (void) glGetString(GL_VERSION);
- __glXInitVertexArrayState(gc);
- }
- }
- else {
- gc->currentContextTag = -1;
- }
- } else {
- __glXSetCurrentContext(&dummyContext);
-#ifdef GLX_DIRECT_RENDERING
- _glapi_set_dispatch(NULL); /* no-op functions */
-#endif
- }
- }
- __glXUnlock();
- return GL_TRUE;
-}
-
-
-PUBLIC Bool glXMakeCurrent(Display *dpy, GLXDrawable draw, GLXContext gc)
-{
- return MakeContextCurrent(dpy, draw, draw, gc, True);
-}
-
-PUBLIC GLX_ALIAS(Bool, glXMakeCurrentReadSGI,
- (Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx),
- (dpy, d, r, ctx, False), MakeContextCurrent)
-
-PUBLIC GLX_ALIAS(Bool, glXMakeContextCurrent,
- (Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx),
- (dpy, d, r, ctx, False), MakeContextCurrent)
-
-
#ifdef DEBUG
_X_HIDDEN void __glXDumpDrawBuffer(__GLXcontext *ctx)
{
#ifdef USE_SPARC_ASM
/*
- * Used only when we are sparc, using sparc assembler.
+ * This is where our dispatch table's bounds are.
+ * And the static mesa_init is taken directly from
+ * Mesa's 'sparc.c' initializer.
*
+ * We need something like this here, because this version
+ * of openGL/glx never initializes a Mesa context, and so
+ * the address of the dispatch table pointer never gets stuffed
+ * into the dispatch jump table otherwise.
+ *
+ * It matters only on SPARC, and only if you are using assembler
+ * code instead of C-code indirect dispatch.
+ *
+ * -- FEM, 04.xii.03
*/
+extern unsigned int _mesa_sparc_glapi_begin;
+extern unsigned int _mesa_sparc_glapi_end;
+extern void __glapi_sparc_icache_flush(unsigned int *);
static void
_glx_mesa_init_sparc_glapi_relocs(void)
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