From 96d6df5da9cddedf4931bf8e17f96e242467c661 Mon Sep 17 00:00:00 2001 From: marha Date: Wed, 27 Apr 2011 06:58:32 +0000 Subject: xserver libX11 libxtrans mesa pixman xkeyboard-config git update 27 Apr 2011 --- xorg-server/glx/Makefile.am | 199 +- xorg-server/glx/glxcmds.c | 4665 ++++++++++++++++++++++--------------------- xorg-server/glx/glxdri2.c | 1583 +++++++-------- xorg-server/glx/glxext.c | 1108 +++++----- 4 files changed, 3783 insertions(+), 3772 deletions(-) (limited to 'xorg-server/glx') diff --git a/xorg-server/glx/Makefile.am b/xorg-server/glx/Makefile.am index 41fdf5fc2..ef8677a7c 100644 --- a/xorg-server/glx/Makefile.am +++ b/xorg-server/glx/Makefile.am @@ -1,98 +1,101 @@ -if AIGLX -GLXDRI_LIBRARY = libglxdri.la -endif - -noinst_LTLIBRARIES = libglx.la $(GLXDRI_LIBRARY) - -AM_CFLAGS = \ - @DIX_CFLAGS@ \ - @GL_CFLAGS@ \ - @DRI_CFLAGS@ \ - @XLIB_CFLAGS@ \ - @LIBDRM_CFLAGS@ \ - @DRIPROTO_CFLAGS@ \ - @GLX_DEFINES@ \ - @GLX_ARCH_DEFINES@ - -# none yet -#sdk_HEADERS = - -INCLUDES = \ - -I$(top_srcdir)/hw/xfree86/os-support \ - -I$(top_srcdir)/hw/xfree86/os-support/bus \ - -I$(top_srcdir)/hw/xfree86/common \ - -I$(top_srcdir)/hw/xfree86/dri \ - -I$(top_srcdir)/mi - -if DRI2_AIGLX -INCLUDES += -I$(top_srcdir)/hw/xfree86/dri2 -endif - -glapi_sources = \ - indirect_dispatch.c \ - indirect_dispatch.h \ - indirect_dispatch_swap.c \ - indirect_reqsize.c \ - indirect_reqsize.h \ - indirect_size.h \ - indirect_size_get.c \ - indirect_size_get.h \ - indirect_table.c \ - dispatch.h \ - glapitable.h \ - glapi.c \ - glapi.h \ - glapioffsets.h \ - glprocs.h \ - glthread.c \ - glthread.h - -libglxdri_la_SOURCES = \ - glxdri.c \ - extension_string.c \ - extension_string.h - -if DRI2_AIGLX -libglxdri_la_SOURCES += glxdri2.c -endif - -libglxdri_la_LIBADD = $(DLOPEN_LIBS) - -libglx_la_SOURCES = \ - $(indirect_sources) \ - $(glapi_sources) \ - indirect_util.c \ - indirect_util.h \ - indirect_program.c \ - indirect_table.h \ - indirect_texture_compression.c \ - glxbyteorder.h \ - glxcmds.c \ - glxcmdsswap.c \ - glxcontext.h \ - glxdrawable.h \ - glxext.c \ - glxext.h \ - glxdriswrast.c \ - glxdricommon.c \ - glxdricommon.h \ - glxscreens.c \ - glxscreens.h \ - glxserver.h \ - glxutil.h \ - render2.c \ - render2swap.c \ - renderpix.c \ - renderpixswap.c \ - rensize.c \ - single2.c \ - single2swap.c \ - singlepix.c \ - singlepixswap.c \ - singlesize.c \ - singlesize.h \ - swap_interval.c \ - unpack.h \ - xfont.c - -libglx_la_LIBADD = $(DLOPEN_LIBS) +if AIGLX +GLXDRI_LIBRARY = libglxdri.la +endif + +noinst_LTLIBRARIES = libglx.la $(GLXDRI_LIBRARY) + +AM_CFLAGS = \ + @DIX_CFLAGS@ \ + @GL_CFLAGS@ \ + @DRI_CFLAGS@ \ + @XLIB_CFLAGS@ \ + @LIBDRM_CFLAGS@ \ + @DRIPROTO_CFLAGS@ \ + @GLX_DEFINES@ \ + @GLX_ARCH_DEFINES@ + +# none yet +#sdk_HEADERS = + +INCLUDES = \ + -I$(top_srcdir)/hw/xfree86/os-support \ + -I$(top_srcdir)/hw/xfree86/os-support/bus \ + -I$(top_srcdir)/hw/xfree86/common \ + -I$(top_srcdir)/hw/xfree86/dri \ + -I$(top_srcdir)/mi + +if DRI2_AIGLX +INCLUDES += -I$(top_srcdir)/hw/xfree86/dri2 +endif + +glapi_sources = \ + indirect_dispatch.c \ + indirect_dispatch.h \ + indirect_dispatch_swap.c \ + indirect_reqsize.c \ + indirect_reqsize.h \ + indirect_size.h \ + indirect_size_get.c \ + indirect_size_get.h \ + indirect_table.c \ + dispatch.h \ + glapitable.h \ + glapi.c \ + glapi.h \ + glapioffsets.h \ + glprocs.h \ + glthread.c \ + glthread.h + +libglxdri_la_SOURCES = \ + extension_string.c \ + extension_string.h + +if DRI +libglxdri_la_SOURCES += glxdri.c +endif + +if DRI2_AIGLX +libglxdri_la_SOURCES += glxdri2.c +endif + +libglxdri_la_LIBADD = $(DLOPEN_LIBS) + +libglx_la_SOURCES = \ + $(indirect_sources) \ + $(glapi_sources) \ + indirect_util.c \ + indirect_util.h \ + indirect_program.c \ + indirect_table.h \ + indirect_texture_compression.c \ + glxbyteorder.h \ + glxcmds.c \ + glxcmdsswap.c \ + glxcontext.h \ + glxdrawable.h \ + glxext.c \ + glxext.h \ + glxdriswrast.c \ + glxdricommon.c \ + glxdricommon.h \ + glxscreens.c \ + glxscreens.h \ + glxserver.h \ + glxutil.h \ + render2.c \ + render2swap.c \ + renderpix.c \ + renderpixswap.c \ + rensize.c \ + single2.c \ + single2swap.c \ + singlepix.c \ + singlepixswap.c \ + singlesize.c \ + singlesize.h \ + swap_interval.c \ + unpack.h \ + xfont.c + +libglx_la_LIBADD = $(DLOPEN_LIBS) diff --git a/xorg-server/glx/glxcmds.c b/xorg-server/glx/glxcmds.c index b524597a8..d5b764fd0 100644 --- a/xorg-server/glx/glxcmds.c +++ b/xorg-server/glx/glxcmds.c @@ -1,2331 +1,2334 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -#ifdef HAVE_DIX_CONFIG_H -#include -#endif - -#include -#include - -#include "glxserver.h" -#include -#include -#include -#include -#include "glxutil.h" -#include "glxext.h" -#include "glapitable.h" -#include "glapi.h" -#include "glthread.h" -#include "dispatch.h" -#include "indirect_dispatch.h" -#include "indirect_table.h" -#include "indirect_util.h" - -static int -validGlxScreen(ClientPtr client, int screen, __GLXscreen **pGlxScreen, int *err) -{ - /* - ** Check if screen exists. - */ - if (screen < 0 || screen >= screenInfo.numScreens) { - client->errorValue = screen; - *err = BadValue; - return FALSE; - } - *pGlxScreen = glxGetScreen(screenInfo.screens[screen]); - - return TRUE; -} - -static int -validGlxFBConfig(ClientPtr client, __GLXscreen *pGlxScreen, XID id, - __GLXconfig **config, int *err) -{ - __GLXconfig *m; - - for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next) - if (m->fbconfigID == id) { - *config = m; - return TRUE; - } - - client->errorValue = id; - *err = __glXError(GLXBadFBConfig); - - return FALSE; -} - -static int -validGlxVisual(ClientPtr client, __GLXscreen *pGlxScreen, XID id, - __GLXconfig **config, int *err) -{ - int i; - - for (i = 0; i < pGlxScreen->numVisuals; i++) - if (pGlxScreen->visuals[i]->visualID == id) { - *config = pGlxScreen->visuals[i]; - return TRUE; - } - - client->errorValue = id; - *err = BadValue; - - return FALSE; -} - -static int -validGlxFBConfigForWindow(ClientPtr client, __GLXconfig *config, - DrawablePtr pDraw, int *err) -{ - ScreenPtr pScreen = pDraw->pScreen; - VisualPtr pVisual = NULL; - XID vid; - int i; - - vid = wVisual((WindowPtr)pDraw); - for (i = 0; i < pScreen->numVisuals; i++) { - if (pScreen->visuals[i].vid == vid) { - pVisual = &pScreen->visuals[i]; - break; - } - } - - /* FIXME: What exactly should we check here... */ - if (pVisual->class != glxConvertToXVisualType(config->visualType) || - !(config->drawableType & GLX_WINDOW_BIT)) { - client->errorValue = pDraw->id; - *err = BadMatch; - return FALSE; - } - - return TRUE; -} - -static int -validGlxContext(ClientPtr client, XID id, int access_mode, - __GLXcontext **context, int *err) -{ - *err = dixLookupResourceByType((pointer *) context, id, - __glXContextRes, client, access_mode); - if (*err != Success || (*context)->idExists == GL_FALSE) { - client->errorValue = id; - if (*err == BadValue || *err == Success) - *err = __glXError(GLXBadContext); - return FALSE; - } - - return TRUE; -} - -static int -validGlxDrawable(ClientPtr client, XID id, int type, int access_mode, - __GLXdrawable **drawable, int *err) -{ - int rc; - - rc = dixLookupResourceByType((pointer *) drawable, id, - __glXDrawableRes, client, access_mode); - if (rc != Success && rc != BadValue) { - *err = rc; - client->errorValue = id; - return FALSE; - } - - /* If the ID of the glx drawable we looked up doesn't match the id - * we looked for, it's because we looked it up under the X - * drawable ID (see DoCreateGLXDrawable). */ - if (rc == BadValue || - (*drawable)->drawId != id || - (type != GLX_DRAWABLE_ANY && type != (*drawable)->type)) { - client->errorValue = id; - switch (type) { - case GLX_DRAWABLE_WINDOW: - *err = __glXError(GLXBadWindow); - return FALSE; - case GLX_DRAWABLE_PIXMAP: - *err = __glXError(GLXBadPixmap); - return FALSE; - case GLX_DRAWABLE_PBUFFER: - *err = __glXError(GLXBadPbuffer); - return FALSE; - case GLX_DRAWABLE_ANY: - *err = __glXError(GLXBadDrawable); - return FALSE; - } - } - - return TRUE; -} - -void -__glXContextDestroy(__GLXcontext *context) -{ - __glXFlushContextCache(); -} - -static void __glXdirectContextDestroy(__GLXcontext *context) -{ - __glXContextDestroy(context); - free(context); -} - -static __GLXcontext *__glXdirectContextCreate(__GLXscreen *screen, - __GLXconfig *modes, - __GLXcontext *shareContext) -{ - __GLXcontext *context; - - context = calloc(1, sizeof (__GLXcontext)); - if (context == NULL) - return NULL; - - context->destroy = __glXdirectContextDestroy; - - return context; -} - -/** - * Create a GL context with the given properties. This routine is used - * to implement \c glXCreateContext, \c glXCreateNewContext, and - * \c glXCreateContextWithConfigSGIX. This works becuase of the hack way - * that GLXFBConfigs are implemented. Basically, the FBConfigID is the - * same as the VisualID. - */ - -static int -DoCreateContext(__GLXclientState *cl, GLXContextID gcId, - GLXContextID shareList, __GLXconfig *config, - __GLXscreen *pGlxScreen, GLboolean isDirect) -{ - ClientPtr client = cl->client; - __GLXcontext *glxc, *shareglxc; - int err; - - LEGAL_NEW_RESOURCE(gcId, client); - - /* - ** Find the display list space that we want to share. - ** - ** NOTE: In a multithreaded X server, we would need to keep a reference - ** count for each display list so that if one client detroyed a list that - ** another client was using, the list would not really be freed until it - ** was no longer in use. Since this sample implementation has no support - ** for multithreaded servers, we don't do this. - */ - if (shareList == None) { - shareglxc = 0; - } else { - if (!validGlxContext(client, shareList, DixReadAccess, - &shareglxc, &err)) - return err; - - if (shareglxc->isDirect) { - /* - ** NOTE: no support for sharing display lists between direct - ** contexts, even if they are in the same address space. - */ -#if 0 - /* Disabling this code seems to allow shared display lists - * and texture objects to work. We'll leave it disabled for now. - */ - client->errorValue = shareList; - return BadMatch; -#endif - } else { - /* - ** Create an indirect context regardless of what the client asked - ** for; this way we can share display list space with shareList. - */ - isDirect = GL_FALSE; - } - } - - /* - ** Allocate memory for the new context - */ - if (!isDirect) - glxc = pGlxScreen->createContext(pGlxScreen, config, shareglxc); - else - glxc = __glXdirectContextCreate(pGlxScreen, config, shareglxc); - if (!glxc) { - return BadAlloc; - } - - /* - ** Initially, setup the part of the context that could be used by - ** a GL core that needs windowing information (e.g., Mesa). - */ - glxc->pGlxScreen = pGlxScreen; - glxc->config = config; - - /* - ** Register this context as a resource. - */ - if (!AddResource(gcId, __glXContextRes, (pointer)glxc)) { - (*glxc->destroy)(glxc); - client->errorValue = gcId; - return BadAlloc; - } - - /* - ** Finally, now that everything is working, setup the rest of the - ** context. - */ - glxc->id = gcId; - glxc->share_id = shareList; - glxc->idExists = GL_TRUE; - glxc->isCurrent = GL_FALSE; - glxc->isDirect = isDirect; - glxc->renderMode = GL_RENDER; - - __glXAddToContextList(glxc); - - return Success; -} - -int __glXDisp_CreateContext(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc; - __GLXconfig *config; - __GLXscreen *pGlxScreen; - int err; - - REQUEST_SIZE_MATCH(xGLXCreateContextReq); - - if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) - return err; - if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err)) - return err; - - return DoCreateContext(cl, req->context, req->shareList, - config, pGlxScreen, req->isDirect); -} - -int __glXDisp_CreateNewContext(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc; - __GLXconfig *config; - __GLXscreen *pGlxScreen; - int err; - - REQUEST_SIZE_MATCH(xGLXCreateNewContextReq); - - if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) - return err; - if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) - return err; - - return DoCreateContext(cl, req->context, req->shareList, - config, pGlxScreen, req->isDirect); -} - -int __glXDisp_CreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreateContextWithConfigSGIXReq *req = - (xGLXCreateContextWithConfigSGIXReq *) pc; - __GLXconfig *config; - __GLXscreen *pGlxScreen; - int err; - - REQUEST_SIZE_MATCH(xGLXCreateContextWithConfigSGIXReq); - - if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) - return err; - if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) - return err; - - return DoCreateContext(cl, req->context, req->shareList, - config, pGlxScreen, req->isDirect); -} - -int __glXDisp_DestroyContext(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc; - __GLXcontext *glxc; - int err; - - REQUEST_SIZE_MATCH(xGLXDestroyContextReq); - - if (!validGlxContext(cl->client, req->context, DixDestroyAccess, - &glxc, &err)) - return err; - - glxc->idExists = GL_FALSE; - if (!glxc->isCurrent) - FreeResourceByType(req->context, __glXContextRes, FALSE); - - return Success; -} - -/* - * This will return "deleted" contexts, ie, where idExists is GL_FALSE. - * Contrast validGlxContext, which will not. We're cheating here and - * using the XID as the context tag, which is fine as long as we defer - * actually destroying the context until it's no longer referenced, and - * block clients from trying to MakeCurrent on contexts that are on the - * way to destruction. Notice that DoMakeCurrent calls validGlxContext - * for new contexts but __glXLookupContextByTag for previous contexts. - */ -__GLXcontext *__glXLookupContextByTag(__GLXclientState *cl, GLXContextTag tag) -{ - __GLXcontext *ret; - - if (dixLookupResourceByType((void **)&ret, tag, __glXContextRes, - cl->client, DixUseAccess) == Success) - return ret; - - return NULL; -} - -/*****************************************************************************/ - -static void StopUsingContext(__GLXcontext *glxc) -{ - if (glxc) { - if (glxc == __glXLastContext) { - /* Tell server GL library */ - __glXLastContext = 0; - } - glxc->isCurrent = GL_FALSE; - if (!glxc->idExists) { - FreeResourceByType(glxc->id, __glXContextRes, FALSE); - } - } -} - -static void StartUsingContext(__GLXclientState *cl, __GLXcontext *glxc) -{ - glxc->isCurrent = GL_TRUE; - __glXLastContext = glxc; -} - -/** - * This is a helper function to handle the legacy (pre GLX 1.3) cases - * where passing an X window to glXMakeCurrent is valid. Given a - * resource ID, look up the GLX drawable if available, otherwise, make - * sure it's an X window and create a GLX drawable one the fly. - */ -static __GLXdrawable * -__glXGetDrawable(__GLXcontext *glxc, GLXDrawable drawId, ClientPtr client, - int *error) -{ - DrawablePtr pDraw; - __GLXdrawable *pGlxDraw; - int rc; - - if (validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY, - DixWriteAccess, &pGlxDraw, &rc)) { - if (glxc != NULL && pGlxDraw->config != glxc->config) { - client->errorValue = drawId; - *error = BadMatch; - return NULL; - } - - return pGlxDraw; - } - - /* No active context and an unknown drawable, bail. */ - if (glxc == NULL) { - client->errorValue = drawId; - *error = BadMatch; - return NULL; - } - - /* The drawId wasn't a GLX drawable. Make sure it's a window and - * create a GLXWindow for it. Check that the drawable screen - * matches the context screen and that the context fbconfig is - * compatible with the window visual. */ - - rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixGetAttrAccess); - if (rc != Success || pDraw->type != DRAWABLE_WINDOW) { - client->errorValue = drawId; - *error = __glXError(GLXBadDrawable); - return NULL; - } - - if (pDraw->pScreen != glxc->pGlxScreen->pScreen) { - client->errorValue = pDraw->pScreen->myNum; - *error = BadMatch; - return NULL; - } - - if (!validGlxFBConfigForWindow(client, glxc->config, pDraw, error)) - return NULL; - - pGlxDraw = glxc->pGlxScreen->createDrawable(client, glxc->pGlxScreen, - pDraw, drawId, - GLX_DRAWABLE_WINDOW, - drawId, glxc->config); - - /* since we are creating the drawablePrivate, drawId should be new */ - if (!AddResource(drawId, __glXDrawableRes, pGlxDraw)) { - pGlxDraw->destroy (pGlxDraw); - *error = BadAlloc; - return NULL; - } - - return pGlxDraw; -} - -/*****************************************************************************/ -/* -** Make an OpenGL context and drawable current. -*/ - -static int -DoMakeCurrent(__GLXclientState *cl, - GLXDrawable drawId, GLXDrawable readId, - GLXContextID contextId, GLXContextTag tag) -{ - ClientPtr client = cl->client; - xGLXMakeCurrentReply reply; - __GLXcontext *glxc, *prevglxc; - __GLXdrawable *drawPriv = NULL; - __GLXdrawable *readPriv = NULL; - int error; - GLuint mask; - - /* - ** If one is None and the other isn't, it's a bad match. - */ - - mask = (drawId == None) ? (1 << 0) : 0; - mask |= (readId == None) ? (1 << 1) : 0; - mask |= (contextId == None) ? (1 << 2) : 0; - - if ( (mask != 0x00) && (mask != 0x07) ) { - return BadMatch; - } - - /* - ** Lookup old context. If we have one, it must be in a usable state. - */ - if (tag != 0) { - prevglxc = __glXLookupContextByTag(cl, tag); - if (!prevglxc) { - /* - ** Tag for previous context is invalid. - */ - return __glXError(GLXBadContextTag); - } - if (prevglxc->renderMode != GL_RENDER) { - /* Oops. Not in render mode render. */ - client->errorValue = prevglxc->id; - return __glXError(GLXBadContextState); - } - } else { - prevglxc = 0; - } - - /* - ** Lookup new context. It must not be current for someone else. - */ - if (contextId != None) { - int status; - - if (!validGlxContext(client, contextId, DixUseAccess, &glxc, &error)) - return error; - if ((glxc != prevglxc) && glxc->isCurrent) { - /* Context is current to somebody else */ - return BadAccess; - } - - assert( drawId != None ); - assert( readId != None ); - - drawPriv = __glXGetDrawable(glxc, drawId, client, &status); - if (drawPriv == NULL) - return status; - - readPriv = __glXGetDrawable(glxc, readId, client, &status); - if (readPriv == NULL) - return status; - - } else { - /* Switching to no context. Ignore new drawable. */ - glxc = 0; - drawPriv = 0; - readPriv = 0; - } - - - if (prevglxc) { - /* - ** Flush the previous context if needed. - */ - if (prevglxc->hasUnflushedCommands) { - if (__glXForceCurrent(cl, tag, (int *)&error)) { - CALL_Flush( GET_DISPATCH(), () ); - prevglxc->hasUnflushedCommands = GL_FALSE; - } else { - return error; - } - } - - /* - ** Make the previous context not current. - */ - if (!(*prevglxc->loseCurrent)(prevglxc)) { - return __glXError(GLXBadContext); - } - __glXFlushContextCache(); - if (!prevglxc->isDirect) { - prevglxc->drawPriv = NULL; - prevglxc->readPriv = NULL; - } - } - - - if ((glxc != 0) && !glxc->isDirect) { - - glxc->drawPriv = drawPriv; - glxc->readPriv = readPriv; - - /* make the context current */ - if (!(*glxc->makeCurrent)(glxc)) { - glxc->drawPriv = NULL; - glxc->readPriv = NULL; - return __glXError(GLXBadContext); - } - - glxc->isCurrent = GL_TRUE; - } - - StopUsingContext(prevglxc); - - if (glxc) { - StartUsingContext(cl, glxc); - reply.contextTag = glxc->id; - } else { - reply.contextTag = 0; - } - - reply.length = 0; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - - if (client->swapped) { - __glXSwapMakeCurrentReply(client, &reply); - } else { - WriteToClient(client, sz_xGLXMakeCurrentReply, (char *)&reply); - } - return Success; -} - -int __glXDisp_MakeCurrent(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc; - - REQUEST_SIZE_MATCH(xGLXMakeCurrentReq); - - return DoMakeCurrent( cl, req->drawable, req->drawable, - req->context, req->oldContextTag ); -} - -int __glXDisp_MakeContextCurrent(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc; - - REQUEST_SIZE_MATCH(xGLXMakeContextCurrentReq); - - return DoMakeCurrent( cl, req->drawable, req->readdrawable, - req->context, req->oldContextTag ); -} - -int __glXDisp_MakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc; - - REQUEST_SIZE_MATCH(xGLXMakeCurrentReadSGIReq); - - return DoMakeCurrent( cl, req->drawable, req->readable, - req->context, req->oldContextTag ); -} - -int __glXDisp_IsDirect(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc; - xGLXIsDirectReply reply; - __GLXcontext *glxc; - int err; - - REQUEST_SIZE_MATCH(xGLXIsDirectReq); - - if (!validGlxContext(cl->client, req->context, DixReadAccess, &glxc, &err)) - return err; - - reply.isDirect = glxc->isDirect; - reply.length = 0; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - - if (client->swapped) { - __glXSwapIsDirectReply(client, &reply); - } else { - WriteToClient(client, sz_xGLXIsDirectReply, (char *)&reply); - } - - return Success; -} - -int __glXDisp_QueryVersion(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc; - xGLXQueryVersionReply reply; - GLuint major, minor; - - REQUEST_SIZE_MATCH(xGLXQueryVersionReq); - - major = req->majorVersion; - minor = req->minorVersion; - (void)major; - (void)minor; - - /* - ** Server should take into consideration the version numbers sent by the - ** client if it wants to work with older clients; however, in this - ** implementation the server just returns its version number. - */ - reply.majorVersion = glxMajorVersion; - reply.minorVersion = glxMinorVersion; - reply.length = 0; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - - if (client->swapped) { - __glXSwapQueryVersionReply(client, &reply); - } else { - WriteToClient(client, sz_xGLXQueryVersionReply, (char *)&reply); - } - return Success; -} - -int __glXDisp_WaitGL(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXWaitGLReq *req = (xGLXWaitGLReq *)pc; - GLXContextTag tag; - __GLXcontext *glxc = NULL; - int error; - - REQUEST_SIZE_MATCH(xGLXWaitGLReq); - - tag = req->contextTag; - if (tag) { - glxc = __glXLookupContextByTag(cl, tag); - if (!glxc) - return __glXError(GLXBadContextTag); - - if (!__glXForceCurrent(cl, req->contextTag, &error)) - return error; - - CALL_Finish( GET_DISPATCH(), () ); - } - - if (glxc && glxc->drawPriv->waitGL) - (*glxc->drawPriv->waitGL)(glxc->drawPriv); - - return Success; -} - -int __glXDisp_WaitX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXWaitXReq *req = (xGLXWaitXReq *)pc; - GLXContextTag tag; - __GLXcontext *glxc = NULL; - int error; - - REQUEST_SIZE_MATCH(xGLXWaitXReq); - - tag = req->contextTag; - if (tag) { - glxc = __glXLookupContextByTag(cl, tag); - if (!glxc) - return __glXError(GLXBadContextTag); - - if (!__glXForceCurrent(cl, req->contextTag, &error)) - return error; - } - - if (glxc && glxc->drawPriv->waitX) - (*glxc->drawPriv->waitX)(glxc->drawPriv); - - return Success; -} - -int __glXDisp_CopyContext(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc; - GLXContextID source; - GLXContextID dest; - GLXContextTag tag; - unsigned long mask; - __GLXcontext *src, *dst; - int error; - - REQUEST_SIZE_MATCH(xGLXCopyContextReq); - - source = req->source; - dest = req->dest; - tag = req->contextTag; - mask = req->mask; - if (!validGlxContext(cl->client, source, DixReadAccess, &src, &error)) - return error; - if (!validGlxContext(cl->client, dest, DixWriteAccess, &dst, &error)) - return error; - - /* - ** They must be in the same address space, and same screen. - ** NOTE: no support for direct rendering contexts here. - */ - if (src->isDirect || dst->isDirect || - (src->pGlxScreen != dst->pGlxScreen)) { - client->errorValue = source; - return BadMatch; - } - - /* - ** The destination context must not be current for any client. - */ - if (dst->isCurrent) { - client->errorValue = dest; - return BadAccess; - } - - if (tag) { - __GLXcontext *tagcx = __glXLookupContextByTag(cl, tag); - - if (!tagcx) { - return __glXError(GLXBadContextTag); - } - if (tagcx != src) { - /* - ** This would be caused by a faulty implementation of the client - ** library. - */ - return BadMatch; - } - /* - ** In this case, glXCopyContext is in both GL and X streams, in terms - ** of sequentiality. - */ - if (__glXForceCurrent(cl, tag, &error)) { - /* - ** Do whatever is needed to make sure that all preceding requests - ** in both streams are completed before the copy is executed. - */ - CALL_Finish( GET_DISPATCH(), () ); - tagcx->hasUnflushedCommands = GL_FALSE; - } else { - return error; - } - } - /* - ** Issue copy. The only reason for failure is a bad mask. - */ - if (!(*dst->copy)(dst, src, mask)) { - client->errorValue = mask; - return BadValue; - } - return Success; -} - -enum { - GLX_VIS_CONFIG_UNPAIRED = 18, - GLX_VIS_CONFIG_PAIRED = 20 -}; - -enum { - GLX_VIS_CONFIG_TOTAL = GLX_VIS_CONFIG_UNPAIRED + GLX_VIS_CONFIG_PAIRED -}; - -int __glXDisp_GetVisualConfigs(__GLXclientState *cl, GLbyte *pc) -{ - xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc; - ClientPtr client = cl->client; - xGLXGetVisualConfigsReply reply; - __GLXscreen *pGlxScreen; - __GLXconfig *modes; - CARD32 buf[GLX_VIS_CONFIG_TOTAL]; - int p, i, err; - __GLX_DECLARE_SWAP_VARIABLES; - __GLX_DECLARE_SWAP_ARRAY_VARIABLES; - - REQUEST_SIZE_MATCH(xGLXGetVisualConfigsReq); - - if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) - return err; - - reply.numVisuals = pGlxScreen->numVisuals; - reply.numProps = GLX_VIS_CONFIG_TOTAL; - reply.length = (reply.numVisuals * __GLX_SIZE_CARD32 * GLX_VIS_CONFIG_TOTAL) >> 2; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - - if (client->swapped) { - __GLX_SWAP_SHORT(&reply.sequenceNumber); - __GLX_SWAP_INT(&reply.length); - __GLX_SWAP_INT(&reply.numVisuals); - __GLX_SWAP_INT(&reply.numProps); - } - - WriteToClient(client, sz_xGLXGetVisualConfigsReply, (char *)&reply); - - for (i = 0; i < pGlxScreen->numVisuals; i++) { - modes = pGlxScreen->visuals[i]; - - p = 0; - buf[p++] = modes->visualID; - buf[p++] = glxConvertToXVisualType( modes->visualType ); - buf[p++] = (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE; - - buf[p++] = modes->redBits; - buf[p++] = modes->greenBits; - buf[p++] = modes->blueBits; - buf[p++] = modes->alphaBits; - buf[p++] = modes->accumRedBits; - buf[p++] = modes->accumGreenBits; - buf[p++] = modes->accumBlueBits; - buf[p++] = modes->accumAlphaBits; - - buf[p++] = modes->doubleBufferMode; - buf[p++] = modes->stereoMode; - - buf[p++] = modes->rgbBits; - buf[p++] = modes->depthBits; - buf[p++] = modes->stencilBits; - buf[p++] = modes->numAuxBuffers; - buf[p++] = modes->level; - - assert(p == GLX_VIS_CONFIG_UNPAIRED); - /* - ** Add token/value pairs for extensions. - */ - buf[p++] = GLX_VISUAL_CAVEAT_EXT; - buf[p++] = modes->visualRating; - buf[p++] = GLX_TRANSPARENT_TYPE; - buf[p++] = modes->transparentPixel; - buf[p++] = GLX_TRANSPARENT_RED_VALUE; - buf[p++] = modes->transparentRed; - buf[p++] = GLX_TRANSPARENT_GREEN_VALUE; - buf[p++] = modes->transparentGreen; - buf[p++] = GLX_TRANSPARENT_BLUE_VALUE; - buf[p++] = modes->transparentBlue; - buf[p++] = GLX_TRANSPARENT_ALPHA_VALUE; - buf[p++] = modes->transparentAlpha; - buf[p++] = GLX_TRANSPARENT_INDEX_VALUE; - buf[p++] = modes->transparentIndex; - buf[p++] = GLX_SAMPLES_SGIS; - buf[p++] = modes->samples; - buf[p++] = GLX_SAMPLE_BUFFERS_SGIS; - buf[p++] = modes->sampleBuffers; - buf[p++] = 0; /* copy over visualSelectGroup (GLX_VISUAL_SELECT_GROUP_SGIX)? */ - buf[p++] = 0; - - assert(p == GLX_VIS_CONFIG_TOTAL); - if (client->swapped) { - __GLX_SWAP_INT_ARRAY(buf, p); - } - WriteToClient(client, __GLX_SIZE_CARD32 * p, (char *)buf); - } - return Success; -} - -#define __GLX_TOTAL_FBCONFIG_ATTRIBS (36) -#define __GLX_FBCONFIG_ATTRIBS_LENGTH (__GLX_TOTAL_FBCONFIG_ATTRIBS * 2) -/** - * Send the set of GLXFBConfigs to the client. There is not currently - * and interface into the driver on the server-side to get GLXFBConfigs, - * so we "invent" some based on the \c __GLXvisualConfig structures that - * the driver does supply. - * - * The reply format for both \c glXGetFBConfigs and \c glXGetFBConfigsSGIX - * is the same, so this routine pulls double duty. - */ - -static int -DoGetFBConfigs(__GLXclientState *cl, unsigned screen) -{ - ClientPtr client = cl->client; - xGLXGetFBConfigsReply reply; - __GLXscreen *pGlxScreen; - CARD32 buf[__GLX_FBCONFIG_ATTRIBS_LENGTH]; - int p, err; - __GLXconfig *modes; - __GLX_DECLARE_SWAP_VARIABLES; - __GLX_DECLARE_SWAP_ARRAY_VARIABLES; - - if (!validGlxScreen(cl->client, screen, &pGlxScreen, &err)) - return err; - - reply.numFBConfigs = pGlxScreen->numFBConfigs; - reply.numAttribs = __GLX_TOTAL_FBCONFIG_ATTRIBS; - reply.length = (__GLX_FBCONFIG_ATTRIBS_LENGTH * reply.numFBConfigs); - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - - if (client->swapped) { - __GLX_SWAP_SHORT(&reply.sequenceNumber); - __GLX_SWAP_INT(&reply.length); - __GLX_SWAP_INT(&reply.numFBConfigs); - __GLX_SWAP_INT(&reply.numAttribs); - } - - WriteToClient(client, sz_xGLXGetFBConfigsReply, (char *)&reply); - - for (modes = pGlxScreen->fbconfigs; modes != NULL; modes = modes->next) { - p = 0; - -#define WRITE_PAIR(tag,value) \ - do { buf[p++] = tag ; buf[p++] = value ; } while( 0 ) - - WRITE_PAIR( GLX_VISUAL_ID, modes->visualID ); - WRITE_PAIR( GLX_FBCONFIG_ID, modes->fbconfigID ); - WRITE_PAIR( GLX_X_RENDERABLE, GL_TRUE ); - - WRITE_PAIR( GLX_RGBA, - (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE ); - WRITE_PAIR( GLX_RENDER_TYPE, modes->renderType ); - WRITE_PAIR( GLX_DOUBLEBUFFER, modes->doubleBufferMode ); - WRITE_PAIR( GLX_STEREO, modes->stereoMode ); - - WRITE_PAIR( GLX_BUFFER_SIZE, modes->rgbBits ); - WRITE_PAIR( GLX_LEVEL, modes->level ); - WRITE_PAIR( GLX_AUX_BUFFERS, modes->numAuxBuffers ); - WRITE_PAIR( GLX_RED_SIZE, modes->redBits ); - WRITE_PAIR( GLX_GREEN_SIZE, modes->greenBits ); - WRITE_PAIR( GLX_BLUE_SIZE, modes->blueBits ); - WRITE_PAIR( GLX_ALPHA_SIZE, modes->alphaBits ); - WRITE_PAIR( GLX_ACCUM_RED_SIZE, modes->accumRedBits ); - WRITE_PAIR( GLX_ACCUM_GREEN_SIZE, modes->accumGreenBits ); - WRITE_PAIR( GLX_ACCUM_BLUE_SIZE, modes->accumBlueBits ); - WRITE_PAIR( GLX_ACCUM_ALPHA_SIZE, modes->accumAlphaBits ); - WRITE_PAIR( GLX_DEPTH_SIZE, modes->depthBits ); - WRITE_PAIR( GLX_STENCIL_SIZE, modes->stencilBits ); - WRITE_PAIR( GLX_X_VISUAL_TYPE, modes->visualType ); - WRITE_PAIR( GLX_CONFIG_CAVEAT, modes->visualRating ); - WRITE_PAIR( GLX_TRANSPARENT_TYPE, modes->transparentPixel ); - WRITE_PAIR( GLX_TRANSPARENT_RED_VALUE, modes->transparentRed ); - WRITE_PAIR( GLX_TRANSPARENT_GREEN_VALUE, modes->transparentGreen ); - WRITE_PAIR( GLX_TRANSPARENT_BLUE_VALUE, modes->transparentBlue ); - WRITE_PAIR( GLX_TRANSPARENT_ALPHA_VALUE, modes->transparentAlpha ); - WRITE_PAIR( GLX_TRANSPARENT_INDEX_VALUE, modes->transparentIndex ); - WRITE_PAIR( GLX_SWAP_METHOD_OML, modes->swapMethod ); - WRITE_PAIR( GLX_SAMPLES_SGIS, modes->samples ); - WRITE_PAIR( GLX_SAMPLE_BUFFERS_SGIS, modes->sampleBuffers ); - /* GLX_VISUAL_SELECT_GROUP_SGIX ? */ - WRITE_PAIR( GLX_DRAWABLE_TYPE, modes->drawableType ); - WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGB_EXT, modes->bindToTextureRgb ); - WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGBA_EXT, modes->bindToTextureRgba ); - WRITE_PAIR( GLX_BIND_TO_MIPMAP_TEXTURE_EXT, modes->bindToMipmapTexture ); - WRITE_PAIR( GLX_BIND_TO_TEXTURE_TARGETS_EXT, modes->bindToTextureTargets ); - - if (client->swapped) { - __GLX_SWAP_INT_ARRAY(buf, __GLX_FBCONFIG_ATTRIBS_LENGTH); - } - WriteToClient(client, __GLX_SIZE_CARD32 * __GLX_FBCONFIG_ATTRIBS_LENGTH, - (char *)buf); - } - return Success; -} - - -int __glXDisp_GetFBConfigs(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc; - REQUEST_SIZE_MATCH(xGLXGetFBConfigsReq); - return DoGetFBConfigs(cl, req->screen); -} - -int __glXDisp_GetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc; - /* work around mesa bug, don't use REQUEST_SIZE_MATCH */ - REQUEST_AT_LEAST_SIZE(xGLXGetFBConfigsSGIXReq); - return DoGetFBConfigs(cl, req->screen); -} - -GLboolean -__glXDrawableInit(__GLXdrawable *drawable, - __GLXscreen *screen, DrawablePtr pDraw, int type, - XID drawId, __GLXconfig *config) -{ - drawable->pDraw = pDraw; - drawable->type = type; - drawable->drawId = drawId; - drawable->config = config; - drawable->eventMask = 0; - - return GL_TRUE; -} - -void -__glXDrawableRelease(__GLXdrawable *drawable) -{ -} - -static int -DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen, - __GLXconfig *config, DrawablePtr pDraw, XID drawableId, - XID glxDrawableId, int type) -{ - __GLXdrawable *pGlxDraw; - - if (pGlxScreen->pScreen != pDraw->pScreen) - return BadMatch; - - pGlxDraw = pGlxScreen->createDrawable(client, pGlxScreen, pDraw, - drawableId, type, - glxDrawableId, config); - if (pGlxDraw == NULL) - return BadAlloc; - - if (!AddResource(glxDrawableId, __glXDrawableRes, pGlxDraw)) { - pGlxDraw->destroy (pGlxDraw); - return BadAlloc; - } - - /* Add the glx drawable under the XID of the underlying X drawable - * too. That way we'll get a callback in DrawableGone and can - * clean up properly when the drawable is destroyed. */ - if (drawableId != glxDrawableId && - !AddResource(pDraw->id, __glXDrawableRes, pGlxDraw)) { - pGlxDraw->destroy (pGlxDraw); - return BadAlloc; - } - - return Success; -} - -static int -DoCreateGLXPixmap(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *config, - XID drawableId, XID glxDrawableId) -{ - DrawablePtr pDraw; - int err; - - LEGAL_NEW_RESOURCE(glxDrawableId, client); - - err = dixLookupDrawable(&pDraw, drawableId, client, 0, DixAddAccess); - if (err != Success) { - client->errorValue = drawableId; - return err; - } - if (pDraw->type != DRAWABLE_PIXMAP) { - client->errorValue = drawableId; - return BadPixmap; - } - - err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw, drawableId, - glxDrawableId, GLX_DRAWABLE_PIXMAP); - - return err; -} - -static void -determineTextureTarget(ClientPtr client, XID glxDrawableID, - CARD32 *attribs, CARD32 numAttribs) -{ - GLenum target = 0; - GLenum format = 0; - int i, err; - __GLXdrawable *pGlxDraw; - - if (!validGlxDrawable(client, glxDrawableID, GLX_DRAWABLE_PIXMAP, - DixWriteAccess, &pGlxDraw, &err)) - /* We just added it in CreatePixmap, so we should never get here. */ - return; - - for (i = 0; i < numAttribs; i++) { - if (attribs[2 * i] == GLX_TEXTURE_TARGET_EXT) { - switch (attribs[2 * i + 1]) { - case GLX_TEXTURE_2D_EXT: - target = GL_TEXTURE_2D; - break; - case GLX_TEXTURE_RECTANGLE_EXT: - target = GL_TEXTURE_RECTANGLE_ARB; - break; - } - } - - if (attribs[2 * i] == GLX_TEXTURE_FORMAT_EXT) - format = attribs[2 * i + 1]; - } - - if (!target) { - int w = pGlxDraw->pDraw->width, h = pGlxDraw->pDraw->height; - - if (h & (h - 1) || w & (w - 1)) - target = GL_TEXTURE_RECTANGLE_ARB; - else - target = GL_TEXTURE_2D; - } - - pGlxDraw->target = target; - pGlxDraw->format = format; -} - -int __glXDisp_CreateGLXPixmap(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc; - __GLXconfig *config; - __GLXscreen *pGlxScreen; - int err; - - REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapReq); - - if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) - return err; - if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err)) - return err; - - return DoCreateGLXPixmap(cl->client, pGlxScreen, config, - req->pixmap, req->glxpixmap); -} - -int __glXDisp_CreatePixmap(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc; - __GLXconfig *config; - __GLXscreen *pGlxScreen; - int err; - - REQUEST_AT_LEAST_SIZE(xGLXCreatePixmapReq); - if (req->numAttribs > (UINT32_MAX >> 3)) { - client->errorValue = req->numAttribs; - return BadValue; - } - REQUEST_FIXED_SIZE(xGLXCreatePixmapReq, req->numAttribs << 3); - - if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) - return err; - if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) - return err; - - err = DoCreateGLXPixmap(cl->client, pGlxScreen, config, - req->pixmap, req->glxpixmap); - if (err != Success) - return err; - - determineTextureTarget(cl->client, req->glxpixmap, - (CARD32*) (req + 1), req->numAttribs); - - return Success; -} - -int __glXDisp_CreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreateGLXPixmapWithConfigSGIXReq *req = - (xGLXCreateGLXPixmapWithConfigSGIXReq *) pc; - __GLXconfig *config; - __GLXscreen *pGlxScreen; - int err; - - REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapWithConfigSGIXReq); - - if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) - return err; - if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) - return err; - - return DoCreateGLXPixmap(cl->client, pGlxScreen, - config, req->pixmap, req->glxpixmap); -} - - -static int DoDestroyDrawable(__GLXclientState *cl, XID glxdrawable, int type) -{ - __GLXdrawable *pGlxDraw; - int err; - - if (!validGlxDrawable(cl->client, glxdrawable, type, - DixDestroyAccess, &pGlxDraw, &err)) - return err; - - FreeResource(glxdrawable, FALSE); - - return Success; -} - -int __glXDisp_DestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc; - - REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq); - - return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP); -} - -int __glXDisp_DestroyPixmap(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXDestroyPixmapReq *req = (xGLXDestroyPixmapReq *) pc; - - /* should be REQUEST_SIZE_MATCH, but mesa's glXDestroyPixmap used to set - * length to 3 instead of 2 */ - REQUEST_AT_LEAST_SIZE(xGLXDestroyPixmapReq); - - return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP); -} - -static int -DoCreatePbuffer(ClientPtr client, int screenNum, XID fbconfigId, - int width, int height, XID glxDrawableId) -{ - __GLXconfig *config; - __GLXscreen *pGlxScreen; - PixmapPtr pPixmap; - int err; - - LEGAL_NEW_RESOURCE(glxDrawableId, client); - - if (!validGlxScreen(client, screenNum, &pGlxScreen, &err)) - return err; - if (!validGlxFBConfig(client, pGlxScreen, fbconfigId, &config, &err)) - return err; - - __glXenterServer(GL_FALSE); - pPixmap = (*pGlxScreen->pScreen->CreatePixmap) (pGlxScreen->pScreen, - width, height, config->rgbBits, 0); - __glXleaveServer(GL_FALSE); - - /* Assign the pixmap the same id as the pbuffer and add it as a - * resource so it and the DRI2 drawable will be reclaimed when the - * pbuffer is destroyed. */ - pPixmap->drawable.id = glxDrawableId; - if (!AddResource(pPixmap->drawable.id, RT_PIXMAP, pPixmap)) - return BadAlloc; - - return DoCreateGLXDrawable(client, pGlxScreen, config, &pPixmap->drawable, - glxDrawableId, glxDrawableId, - GLX_DRAWABLE_PBUFFER); -} - -int __glXDisp_CreatePbuffer(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreatePbufferReq *req = (xGLXCreatePbufferReq *) pc; - CARD32 *attrs; - int width, height, i; - - REQUEST_AT_LEAST_SIZE(xGLXCreatePbufferReq); - if (req->numAttribs > (UINT32_MAX >> 3)) { - client->errorValue = req->numAttribs; - return BadValue; - } - REQUEST_FIXED_SIZE(xGLXCreatePbufferReq, req->numAttribs << 3); - - attrs = (CARD32 *) (req + 1); - width = 0; - height = 0; - - for (i = 0; i < req->numAttribs; i++) { - switch (attrs[i * 2]) { - case GLX_PBUFFER_WIDTH: - width = attrs[i * 2 + 1]; - break; - case GLX_PBUFFER_HEIGHT: - height = attrs[i * 2 + 1]; - break; - case GLX_LARGEST_PBUFFER: - case GLX_PRESERVED_CONTENTS: - /* FIXME: huh... */ - break; - } - } - - return DoCreatePbuffer(cl->client, req->screen, req->fbconfig, - width, height, req->pbuffer); -} - -int __glXDisp_CreateGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc; - - REQUEST_AT_LEAST_SIZE(xGLXCreateGLXPbufferSGIXReq); - - return DoCreatePbuffer(cl->client, req->screen, req->fbconfig, - req->width, req->height, req->pbuffer); -} - -int __glXDisp_DestroyPbuffer(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc; - - REQUEST_SIZE_MATCH(xGLXDestroyPbufferReq); - - return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER); -} - -int __glXDisp_DestroyGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc; - - REQUEST_SIZE_MATCH(xGLXDestroyGLXPbufferSGIXReq); - - return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER); -} - -static int -DoChangeDrawableAttributes(ClientPtr client, XID glxdrawable, - int numAttribs, CARD32 *attribs) -{ - __GLXdrawable *pGlxDraw; - int i, err; - - if (!validGlxDrawable(client, glxdrawable, GLX_DRAWABLE_ANY, - DixSetAttrAccess, &pGlxDraw, &err)) - return err; - - for (i = 0; i < numAttribs; i++) { - switch(attribs[i * 2]) { - case GLX_EVENT_MASK: - /* All we do is to record the event mask so we can send it - * back when queried. We never actually clobber the - * pbuffers, so we never need to send out the event. */ - pGlxDraw->eventMask = attribs[i * 2 + 1]; - break; - } - } - - return Success; -} - -int __glXDisp_ChangeDrawableAttributes(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXChangeDrawableAttributesReq *req = - (xGLXChangeDrawableAttributesReq *) pc; - - REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesReq); - if (req->numAttribs > (UINT32_MAX >> 3)) { - client->errorValue = req->numAttribs; - return BadValue; - } -#if 0 - /* mesa sends an additional 8 bytes */ - REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesReq, req->numAttribs << 3); -#else - if (((sizeof(xGLXChangeDrawableAttributesReq) + (req->numAttribs << 3)) >> 2) < client->req_len) - return BadLength; -#endif - - return DoChangeDrawableAttributes(cl->client, req->drawable, - req->numAttribs, (CARD32 *) (req + 1)); -} - -int __glXDisp_ChangeDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXChangeDrawableAttributesSGIXReq *req = - (xGLXChangeDrawableAttributesSGIXReq *)pc; - - REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesSGIXReq); - if (req->numAttribs > (UINT32_MAX >> 3)) { - client->errorValue = req->numAttribs; - return BadValue; - } - REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesSGIXReq, req->numAttribs << 3); - - return DoChangeDrawableAttributes(cl->client, req->drawable, - req->numAttribs, (CARD32 *) (req + 1)); -} - -int __glXDisp_CreateWindow(__GLXclientState *cl, GLbyte *pc) -{ - xGLXCreateWindowReq *req = (xGLXCreateWindowReq *) pc; - __GLXconfig *config; - __GLXscreen *pGlxScreen; - ClientPtr client = cl->client; - DrawablePtr pDraw; - int err; - - REQUEST_AT_LEAST_SIZE(xGLXCreateWindowReq); - if (req->numAttribs > (UINT32_MAX >> 3)) { - client->errorValue = req->numAttribs; - return BadValue; - } - REQUEST_FIXED_SIZE(xGLXCreateWindowReq, req->numAttribs << 3); - - LEGAL_NEW_RESOURCE(req->glxwindow, client); - - if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) - return err; - if (!validGlxFBConfig(client, pGlxScreen, req->fbconfig, &config, &err)) - return err; - - err = dixLookupDrawable(&pDraw, req->window, client, 0, DixAddAccess); - if (err != Success || pDraw->type != DRAWABLE_WINDOW) { - client->errorValue = req->window; - return BadWindow; - } - - if (!validGlxFBConfigForWindow(client, config, pDraw, &err)) - return err; - - return DoCreateGLXDrawable(client, pGlxScreen, config, - pDraw, req->window, - req->glxwindow, GLX_DRAWABLE_WINDOW); -} - -int __glXDisp_DestroyWindow(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc; - - /* mesa's glXDestroyWindow used to set length to 3 instead of 2 */ - REQUEST_AT_LEAST_SIZE(xGLXDestroyWindowReq); - - return DoDestroyDrawable(cl, req->glxwindow, GLX_DRAWABLE_WINDOW); -} - - -/*****************************************************************************/ - -/* -** NOTE: There is no portable implementation for swap buffers as of -** this time that is of value. Consequently, this code must be -** implemented by somebody other than SGI. -*/ -int __glXDisp_SwapBuffers(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc; - GLXContextTag tag; - XID drawId; - __GLXcontext *glxc = NULL; - __GLXdrawable *pGlxDraw; - int error; - - REQUEST_SIZE_MATCH(xGLXSwapBuffersReq); - - tag = req->contextTag; - drawId = req->drawable; - if (tag) { - glxc = __glXLookupContextByTag(cl, tag); - if (!glxc) { - return __glXError(GLXBadContextTag); - } - /* - ** The calling thread is swapping its current drawable. In this case, - ** glxSwapBuffers is in both GL and X streams, in terms of - ** sequentiality. - */ - if (__glXForceCurrent(cl, tag, &error)) { - /* - ** Do whatever is needed to make sure that all preceding requests - ** in both streams are completed before the swap is executed. - */ - CALL_Finish( GET_DISPATCH(), () ); - glxc->hasUnflushedCommands = GL_FALSE; - } else { - return error; - } - } - - pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error); - if (pGlxDraw == NULL) - return error; - - if (pGlxDraw->type == DRAWABLE_WINDOW && - (*pGlxDraw->swapBuffers)(cl->client, pGlxDraw) == GL_FALSE) - return __glXError(GLXBadDrawable); - - return Success; -} - - -static int -DoQueryContext(__GLXclientState *cl, GLXContextID gcId) -{ - ClientPtr client = cl->client; - __GLXcontext *ctx; - xGLXQueryContextInfoEXTReply reply; - int nProps; - int *sendBuf, *pSendBuf; - int nReplyBytes; - int err; - - if (!validGlxContext(cl->client, gcId, DixReadAccess, &ctx, &err)) - return err; - - nProps = 3; - reply.length = nProps << 1; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - reply.n = nProps; - - nReplyBytes = reply.length << 2; - sendBuf = (int *)malloc((size_t)nReplyBytes); - if (sendBuf == NULL) { - return __glXError(GLXBadContext); /* XXX: Is this correct? */ - } - pSendBuf = sendBuf; - *pSendBuf++ = GLX_SHARE_CONTEXT_EXT; - *pSendBuf++ = (int)(ctx->share_id); - *pSendBuf++ = GLX_VISUAL_ID_EXT; - *pSendBuf++ = (int)(ctx->config->visualID); - *pSendBuf++ = GLX_SCREEN_EXT; - *pSendBuf++ = (int)(ctx->pGlxScreen->pScreen->myNum); - - if (client->swapped) { - __glXSwapQueryContextInfoEXTReply(client, &reply, sendBuf); - } else { - WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, (char *)&reply); - WriteToClient(client, nReplyBytes, (char *)sendBuf); - } - free((char *)sendBuf); - - return Success; -} - -int __glXDisp_QueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc; - - REQUEST_SIZE_MATCH(xGLXQueryContextInfoEXTReq); - - return DoQueryContext(cl, req->context); -} - -int __glXDisp_QueryContext(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc; - - REQUEST_SIZE_MATCH(xGLXQueryContextReq); - - return DoQueryContext(cl, req->context); -} - -int __glXDisp_BindTexImageEXT(__GLXclientState *cl, GLbyte *pc) -{ - xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; - ClientPtr client = cl->client; - __GLXcontext *context; - __GLXdrawable *pGlxDraw; - GLXDrawable drawId; - int buffer; - int error; - CARD32 num_attribs; - - if ((sizeof(xGLXVendorPrivateReq) + 12) >> 2 > client->req_len) - return BadLength; - - pc += __GLX_VENDPRIV_HDR_SIZE; - - drawId = *((CARD32 *) (pc)); - buffer = *((INT32 *) (pc + 4)); - num_attribs = *((CARD32 *) (pc + 8)); - if (num_attribs > (UINT32_MAX >> 3)) { - client->errorValue = num_attribs; - return BadValue; - } - REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 12 + (num_attribs << 3)); - - if (buffer != GLX_FRONT_LEFT_EXT) - return __glXError(GLXBadPixmap); - - context = __glXForceCurrent (cl, req->contextTag, &error); - if (!context) - return error; - - if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP, - DixReadAccess, &pGlxDraw, &error)) - return error; - - if (!context->textureFromPixmap) - return __glXError(GLXUnsupportedPrivateRequest); - - return context->textureFromPixmap->bindTexImage(context, - buffer, - pGlxDraw); -} - -int __glXDisp_ReleaseTexImageEXT(__GLXclientState *cl, GLbyte *pc) -{ - xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; - ClientPtr client = cl->client; - __GLXdrawable *pGlxDraw; - __GLXcontext *context; - GLXDrawable drawId; - int buffer; - int error; - - REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8); - - pc += __GLX_VENDPRIV_HDR_SIZE; - - drawId = *((CARD32 *) (pc)); - buffer = *((INT32 *) (pc + 4)); - - context = __glXForceCurrent (cl, req->contextTag, &error); - if (!context) - return error; - - if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP, - DixReadAccess, &pGlxDraw, &error)) - return error; - - if (!context->textureFromPixmap) - return __glXError(GLXUnsupportedPrivateRequest); - - return context->textureFromPixmap->releaseTexImage(context, - buffer, - pGlxDraw); -} - -int __glXDisp_CopySubBufferMESA(__GLXclientState *cl, GLbyte *pc) -{ - xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; - GLXContextTag tag = req->contextTag; - __GLXcontext *glxc = NULL; - __GLXdrawable *pGlxDraw; - ClientPtr client = cl->client; - GLXDrawable drawId; - int error; - int x, y, width, height; - - (void) client; - (void) req; - - REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 20); - - pc += __GLX_VENDPRIV_HDR_SIZE; - - drawId = *((CARD32 *) (pc)); - x = *((INT32 *) (pc + 4)); - y = *((INT32 *) (pc + 8)); - width = *((INT32 *) (pc + 12)); - height = *((INT32 *) (pc + 16)); - - if (tag) { - glxc = __glXLookupContextByTag(cl, tag); - if (!glxc) { - return __glXError(GLXBadContextTag); - } - /* - ** The calling thread is swapping its current drawable. In this case, - ** glxSwapBuffers is in both GL and X streams, in terms of - ** sequentiality. - */ - if (__glXForceCurrent(cl, tag, &error)) { - /* - ** Do whatever is needed to make sure that all preceding requests - ** in both streams are completed before the swap is executed. - */ - CALL_Finish( GET_DISPATCH(), () ); - glxc->hasUnflushedCommands = GL_FALSE; - } else { - return error; - } - } - - pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error); - if (!pGlxDraw) - return error; - - if (pGlxDraw == NULL || - pGlxDraw->type != GLX_DRAWABLE_WINDOW || - pGlxDraw->copySubBuffer == NULL) - return __glXError(GLXBadDrawable); - - (*pGlxDraw->copySubBuffer)(pGlxDraw, x, y, width, height); - - return Success; -} - -/* -** Get drawable attributes -*/ -static int -DoGetDrawableAttributes(__GLXclientState *cl, XID drawId) -{ - ClientPtr client = cl->client; - xGLXGetDrawableAttributesReply reply; - __GLXdrawable *pGlxDraw; - CARD32 attributes[6]; - int numAttribs, error; - - if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY, - DixGetAttrAccess, &pGlxDraw, &error)) - return error; - - numAttribs = 3; - reply.length = numAttribs << 1; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - reply.numAttribs = numAttribs; - - attributes[0] = GLX_TEXTURE_TARGET_EXT; - attributes[1] = pGlxDraw->target == GL_TEXTURE_2D ? GLX_TEXTURE_2D_EXT : - GLX_TEXTURE_RECTANGLE_EXT; - attributes[2] = GLX_Y_INVERTED_EXT; - attributes[3] = GL_FALSE; - attributes[4] = GLX_EVENT_MASK; - attributes[5] = pGlxDraw->eventMask; - - if (client->swapped) { - __glXSwapGetDrawableAttributesReply(client, &reply, attributes); - } else { - WriteToClient(client, sz_xGLXGetDrawableAttributesReply, - (char *)&reply); - WriteToClient(client, reply.length * sizeof (CARD32), - (char *)attributes); - } - - return Success; -} - -int __glXDisp_GetDrawableAttributes(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc; - - /* this should be REQUEST_SIZE_MATCH, but mesa sends an additional 4 bytes */ - REQUEST_AT_LEAST_SIZE(xGLXGetDrawableAttributesReq); - - return DoGetDrawableAttributes(cl, req->drawable); -} - -int __glXDisp_GetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXGetDrawableAttributesSGIXReq *req = - (xGLXGetDrawableAttributesSGIXReq *)pc; - - REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesSGIXReq); - - return DoGetDrawableAttributes(cl, req->drawable); -} - -/************************************************************************/ - -/* -** Render and Renderlarge are not in the GLX API. They are used by the GLX -** client library to send batches of GL rendering commands. -*/ - -/* -** Execute all the drawing commands in a request. -*/ -int __glXDisp_Render(__GLXclientState *cl, GLbyte *pc) -{ - xGLXRenderReq *req; - ClientPtr client= cl->client; - int left, cmdlen, error; - int commandsDone; - CARD16 opcode; - __GLXrenderHeader *hdr; - __GLXcontext *glxc; - __GLX_DECLARE_SWAP_VARIABLES; - - REQUEST_AT_LEAST_SIZE(xGLXRenderReq); - - req = (xGLXRenderReq *) pc; - if (client->swapped) { - __GLX_SWAP_SHORT(&req->length); - __GLX_SWAP_INT(&req->contextTag); - } - - glxc = __glXForceCurrent(cl, req->contextTag, &error); - if (!glxc) { - return error; - } - - commandsDone = 0; - pc += sz_xGLXRenderReq; - left = (req->length << 2) - sz_xGLXRenderReq; - while (left > 0) { - __GLXrenderSizeData entry; - int extra; - __GLXdispatchRenderProcPtr proc; - int err; - - if (left < sizeof(__GLXrenderHeader)) - return BadLength; - - /* - ** Verify that the header length and the overall length agree. - ** Also, each command must be word aligned. - */ - hdr = (__GLXrenderHeader *) pc; - if (client->swapped) { - __GLX_SWAP_SHORT(&hdr->length); - __GLX_SWAP_SHORT(&hdr->opcode); - } - cmdlen = hdr->length; - opcode = hdr->opcode; - - /* - ** Check for core opcodes and grab entry data. - */ - err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry); - proc = (__GLXdispatchRenderProcPtr) - __glXGetProtocolDecodeFunction(& Render_dispatch_info, - opcode, client->swapped); - - if ((err < 0) || (proc == NULL)) { - client->errorValue = commandsDone; - return __glXError(GLXBadRenderRequest); - } - - if (entry.varsize) { - /* variable size command */ - extra = (*entry.varsize)(pc + __GLX_RENDER_HDR_SIZE, - client->swapped); - if (extra < 0) { - extra = 0; - } - if (cmdlen != __GLX_PAD(entry.bytes + extra)) { - return BadLength; - } - } else { - /* constant size command */ - if (cmdlen != __GLX_PAD(entry.bytes)) { - return BadLength; - } - } - if (left < cmdlen) { - return BadLength; - } - - /* - ** Skip over the header and execute the command. We allow the - ** caller to trash the command memory. This is useful especially - ** for things that require double alignment - they can just shift - ** the data towards lower memory (trashing the header) by 4 bytes - ** and achieve the required alignment. - */ - (*proc)(pc + __GLX_RENDER_HDR_SIZE); - pc += cmdlen; - left -= cmdlen; - commandsDone++; - } - glxc->hasUnflushedCommands = GL_TRUE; - return Success; -} - - -/* -** Execute a large rendering request (one that spans multiple X requests). -*/ -int __glXDisp_RenderLarge(__GLXclientState *cl, GLbyte *pc) -{ - xGLXRenderLargeReq *req; - ClientPtr client= cl->client; - size_t dataBytes; - __GLXrenderLargeHeader *hdr; - __GLXcontext *glxc; - int error; - CARD16 opcode; - __GLX_DECLARE_SWAP_VARIABLES; - - req = (xGLXRenderLargeReq *) pc; - if (client->swapped) { - __GLX_SWAP_SHORT(&req->length); - __GLX_SWAP_INT(&req->contextTag); - __GLX_SWAP_INT(&req->dataBytes); - __GLX_SWAP_SHORT(&req->requestNumber); - __GLX_SWAP_SHORT(&req->requestTotal); - } - - glxc = __glXForceCurrent(cl, req->contextTag, &error); - if (!glxc) { - /* Reset in case this isn't 1st request. */ - __glXResetLargeCommandStatus(cl); - return error; - } - dataBytes = req->dataBytes; - - /* - ** Check the request length. - */ - if ((req->length << 2) != __GLX_PAD(dataBytes) + sz_xGLXRenderLargeReq) { - client->errorValue = req->length; - /* Reset in case this isn't 1st request. */ - __glXResetLargeCommandStatus(cl); - return BadLength; - } - pc += sz_xGLXRenderLargeReq; - - if (cl->largeCmdRequestsSoFar == 0) { - __GLXrenderSizeData entry; - int extra; - size_t cmdlen; - int err; - - /* - ** This is the first request of a multi request command. - ** Make enough space in the buffer, then copy the entire request. - */ - if (req->requestNumber != 1) { - client->errorValue = req->requestNumber; - return __glXError(GLXBadLargeRequest); - } - - hdr = (__GLXrenderLargeHeader *) pc; - if (client->swapped) { - __GLX_SWAP_INT(&hdr->length); - __GLX_SWAP_INT(&hdr->opcode); - } - cmdlen = hdr->length; - opcode = hdr->opcode; - - /* - ** Check for core opcodes and grab entry data. - */ - err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry); - if (err < 0) { - client->errorValue = opcode; - return __glXError(GLXBadLargeRequest); - } - - if (entry.varsize) { - /* - ** If it's a variable-size command (a command whose length must - ** be computed from its parameters), all the parameters needed - ** will be in the 1st request, so it's okay to do this. - */ - extra = (*entry.varsize)(pc + __GLX_RENDER_LARGE_HDR_SIZE, - client->swapped); - if (extra < 0) { - extra = 0; - } - /* large command's header is 4 bytes longer, so add 4 */ - if (cmdlen != __GLX_PAD(entry.bytes + 4 + extra)) { - return BadLength; - } - } else { - /* constant size command */ - if (cmdlen != __GLX_PAD(entry.bytes + 4)) { - return BadLength; - } - } - /* - ** Make enough space in the buffer, then copy the entire request. - */ - if (cl->largeCmdBufSize < cmdlen) { - if (!cl->largeCmdBuf) { - cl->largeCmdBuf = (GLbyte *) malloc(cmdlen); - } else { - cl->largeCmdBuf = (GLbyte *) realloc(cl->largeCmdBuf, cmdlen); - } - if (!cl->largeCmdBuf) { - return BadAlloc; - } - cl->largeCmdBufSize = cmdlen; - } - memcpy(cl->largeCmdBuf, pc, dataBytes); - - cl->largeCmdBytesSoFar = dataBytes; - cl->largeCmdBytesTotal = cmdlen; - cl->largeCmdRequestsSoFar = 1; - cl->largeCmdRequestsTotal = req->requestTotal; - return Success; - - } else { - /* - ** We are receiving subsequent (i.e. not the first) requests of a - ** multi request command. - */ - - /* - ** Check the request number and the total request count. - */ - if (req->requestNumber != cl->largeCmdRequestsSoFar + 1) { - client->errorValue = req->requestNumber; - __glXResetLargeCommandStatus(cl); - return __glXError(GLXBadLargeRequest); - } - if (req->requestTotal != cl->largeCmdRequestsTotal) { - client->errorValue = req->requestTotal; - __glXResetLargeCommandStatus(cl); - return __glXError(GLXBadLargeRequest); - } - - /* - ** Check that we didn't get too much data. - */ - if ((cl->largeCmdBytesSoFar + dataBytes) > cl->largeCmdBytesTotal) { - client->errorValue = dataBytes; - __glXResetLargeCommandStatus(cl); - return __glXError(GLXBadLargeRequest); - } - memcpy(cl->largeCmdBuf + cl->largeCmdBytesSoFar, pc, dataBytes); - cl->largeCmdBytesSoFar += dataBytes; - cl->largeCmdRequestsSoFar++; - - if (req->requestNumber == cl->largeCmdRequestsTotal) { - __GLXdispatchRenderProcPtr proc; - - /* - ** This is the last request; it must have enough bytes to complete - ** the command. - */ - /* NOTE: the two pad macros have been added below; they are needed - ** because the client library pads the total byte count, but not - ** the per-request byte counts. The Protocol Encoding says the - ** total byte count should not be padded, so a proposal will be - ** made to the ARB to relax the padding constraint on the total - ** byte count, thus preserving backward compatibility. Meanwhile, - ** the padding done below fixes a bug that did not allow - ** large commands of odd sizes to be accepted by the server. - */ - if (__GLX_PAD(cl->largeCmdBytesSoFar) != - __GLX_PAD(cl->largeCmdBytesTotal)) { - client->errorValue = dataBytes; - __glXResetLargeCommandStatus(cl); - return __glXError(GLXBadLargeRequest); - } - hdr = (__GLXrenderLargeHeader *) cl->largeCmdBuf; - /* - ** The opcode and length field in the header had already been - ** swapped when the first request was received. - ** - ** Use the opcode to index into the procedure table. - */ - opcode = hdr->opcode; - - proc = (__GLXdispatchRenderProcPtr) - __glXGetProtocolDecodeFunction(& Render_dispatch_info, opcode, - client->swapped); - if (proc == NULL) { - client->errorValue = opcode; - return __glXError(GLXBadLargeRequest); - } - - /* - ** Skip over the header and execute the command. - */ - (*proc)(cl->largeCmdBuf + __GLX_RENDER_LARGE_HDR_SIZE); - glxc->hasUnflushedCommands = GL_TRUE; - - /* - ** Reset for the next RenderLarge series. - */ - __glXResetLargeCommandStatus(cl); - } else { - /* - ** This is neither the first nor the last request. - */ - } - return Success; - } -} - -/************************************************************************/ - -/* -** No support is provided for the vendor-private requests other than -** allocating the entry points in the dispatch table. -*/ - -int __glXDisp_VendorPrivate(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; - GLint vendorcode = req->vendorCode; - __GLXdispatchVendorPrivProcPtr proc; - - REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq); - - proc = (__GLXdispatchVendorPrivProcPtr) - __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info, - vendorcode, 0); - if (proc != NULL) { - (*proc)(cl, (GLbyte*)req); - return Success; - } - - cl->client->errorValue = req->vendorCode; - return __glXError(GLXUnsupportedPrivateRequest); -} - -int __glXDisp_VendorPrivateWithReply(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; - GLint vendorcode = req->vendorCode; - __GLXdispatchVendorPrivProcPtr proc; - - REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq); - - proc = (__GLXdispatchVendorPrivProcPtr) - __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info, - vendorcode, 0); - if (proc != NULL) { - return (*proc)(cl, (GLbyte*)req); - } - - cl->client->errorValue = vendorcode; - return __glXError(GLXUnsupportedPrivateRequest); -} - -int __glXDisp_QueryExtensionsString(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *) pc; - xGLXQueryExtensionsStringReply reply; - __GLXscreen *pGlxScreen; - size_t n, length; - char *buf; - int err; - - REQUEST_SIZE_MATCH(xGLXQueryExtensionsStringReq); - - if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) - return err; - - n = strlen(pGlxScreen->GLXextensions) + 1; - length = __GLX_PAD(n) >> 2; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - reply.length = length; - reply.n = n; - - /* Allocate buffer to make sure it's a multiple of 4 bytes big.*/ - buf = (char *) malloc(length << 2); - if (buf == NULL) - return BadAlloc; - memcpy(buf, pGlxScreen->GLXextensions, n); - - if (client->swapped) { - glxSwapQueryExtensionsStringReply(client, &reply, buf); - } else { - WriteToClient(client, sz_xGLXQueryExtensionsStringReply,(char *)&reply); - WriteToClient(client, (int)(length << 2), (char *)buf); - } - - free(buf); - return Success; -} - -int __glXDisp_QueryServerString(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *) pc; - xGLXQueryServerStringReply reply; - size_t n, length; - const char *ptr; - char *buf; - __GLXscreen *pGlxScreen; - int err; - char ver_str[16]; - - REQUEST_SIZE_MATCH(xGLXQueryServerStringReq); - - if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) - return err; - - switch(req->name) { - case GLX_VENDOR: - ptr = pGlxScreen->GLXvendor; - break; - case GLX_VERSION: - /* Return to the server version rather than the screen version - * to prevent confusion when they do not match. - */ - snprintf(ver_str, 16, "%d.%d", glxMajorVersion, glxMinorVersion); - ptr = ver_str; - break; - case GLX_EXTENSIONS: - ptr = pGlxScreen->GLXextensions; - break; - default: - return BadValue; - } - - n = strlen(ptr) + 1; - length = __GLX_PAD(n) >> 2; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - reply.length = length; - reply.n = n; - - buf = (char *) malloc(length << 2); - if (buf == NULL) { - return BadAlloc; - } - memcpy(buf, ptr, n); - - if (client->swapped) { - glxSwapQueryServerStringReply(client, &reply, buf); - } else { - WriteToClient(client, sz_xGLXQueryServerStringReply, (char *)&reply); - WriteToClient(client, (int)(length << 2), buf); - } - - free(buf); - return Success; -} - -int __glXDisp_ClientInfo(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client = cl->client; - xGLXClientInfoReq *req = (xGLXClientInfoReq *) pc; - const char *buf; - - REQUEST_AT_LEAST_SIZE(xGLXClientInfoReq); - - buf = (const char *)(req+1); - if (!memchr(buf, 0, (client->req_len << 2) - sizeof(xGLXClientInfoReq))) - return BadLength; - - cl->GLClientmajorVersion = req->major; - cl->GLClientminorVersion = req->minor; - free(cl->GLClientextensions); - cl->GLClientextensions = strdup(buf); - - return Success; -} +/* + * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) + * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice including the dates of first publication and + * either this permission notice or a reference to + * http://oss.sgi.com/projects/FreeB/ + * shall be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF + * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Except as contained in this notice, the name of Silicon Graphics, Inc. + * shall not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization from + * Silicon Graphics, Inc. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include +#include + +#include "glxserver.h" +#include +#include +#include +#include +#include "glxutil.h" +#include "glxext.h" +#include "glapitable.h" +#include "glapi.h" +#include "glthread.h" +#include "dispatch.h" +#include "indirect_dispatch.h" +#include "indirect_table.h" +#include "indirect_util.h" + +static int +validGlxScreen(ClientPtr client, int screen, __GLXscreen **pGlxScreen, int *err) +{ + /* + ** Check if screen exists. + */ + if (screen < 0 || screen >= screenInfo.numScreens) { + client->errorValue = screen; + *err = BadValue; + return FALSE; + } + *pGlxScreen = glxGetScreen(screenInfo.screens[screen]); + + return TRUE; +} + +static int +validGlxFBConfig(ClientPtr client, __GLXscreen *pGlxScreen, XID id, + __GLXconfig **config, int *err) +{ + __GLXconfig *m; + + for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next) + if (m->fbconfigID == id) { + *config = m; + return TRUE; + } + + client->errorValue = id; + *err = __glXError(GLXBadFBConfig); + + return FALSE; +} + +static int +validGlxVisual(ClientPtr client, __GLXscreen *pGlxScreen, XID id, + __GLXconfig **config, int *err) +{ + int i; + + for (i = 0; i < pGlxScreen->numVisuals; i++) + if (pGlxScreen->visuals[i]->visualID == id) { + *config = pGlxScreen->visuals[i]; + return TRUE; + } + + client->errorValue = id; + *err = BadValue; + + return FALSE; +} + +static int +validGlxFBConfigForWindow(ClientPtr client, __GLXconfig *config, + DrawablePtr pDraw, int *err) +{ + ScreenPtr pScreen = pDraw->pScreen; + VisualPtr pVisual = NULL; + XID vid; + int i; + + vid = wVisual((WindowPtr)pDraw); + for (i = 0; i < pScreen->numVisuals; i++) { + if (pScreen->visuals[i].vid == vid) { + pVisual = &pScreen->visuals[i]; + break; + } + } + + /* FIXME: What exactly should we check here... */ + if (pVisual->class != glxConvertToXVisualType(config->visualType) || + !(config->drawableType & GLX_WINDOW_BIT)) { + client->errorValue = pDraw->id; + *err = BadMatch; + return FALSE; + } + + return TRUE; +} + +static int +validGlxContext(ClientPtr client, XID id, int access_mode, + __GLXcontext **context, int *err) +{ + *err = dixLookupResourceByType((pointer *) context, id, + __glXContextRes, client, access_mode); + if (*err != Success || (*context)->idExists == GL_FALSE) { + client->errorValue = id; + if (*err == BadValue || *err == Success) + *err = __glXError(GLXBadContext); + return FALSE; + } + + return TRUE; +} + +static int +validGlxDrawable(ClientPtr client, XID id, int type, int access_mode, + __GLXdrawable **drawable, int *err) +{ + int rc; + + rc = dixLookupResourceByType((pointer *) drawable, id, + __glXDrawableRes, client, access_mode); + if (rc != Success && rc != BadValue) { + *err = rc; + client->errorValue = id; + return FALSE; + } + + /* If the ID of the glx drawable we looked up doesn't match the id + * we looked for, it's because we looked it up under the X + * drawable ID (see DoCreateGLXDrawable). */ + if (rc == BadValue || + (*drawable)->drawId != id || + (type != GLX_DRAWABLE_ANY && type != (*drawable)->type)) { + client->errorValue = id; + switch (type) { + case GLX_DRAWABLE_WINDOW: + *err = __glXError(GLXBadWindow); + return FALSE; + case GLX_DRAWABLE_PIXMAP: + *err = __glXError(GLXBadPixmap); + return FALSE; + case GLX_DRAWABLE_PBUFFER: + *err = __glXError(GLXBadPbuffer); + return FALSE; + case GLX_DRAWABLE_ANY: + *err = __glXError(GLXBadDrawable); + return FALSE; + } + } + + return TRUE; +} + +void +__glXContextDestroy(__GLXcontext *context) +{ + __glXFlushContextCache(); +} + +static void __glXdirectContextDestroy(__GLXcontext *context) +{ + __glXContextDestroy(context); + free(context); +} + +static __GLXcontext *__glXdirectContextCreate(__GLXscreen *screen, + __GLXconfig *modes, + __GLXcontext *shareContext) +{ + __GLXcontext *context; + + context = calloc(1, sizeof (__GLXcontext)); + if (context == NULL) + return NULL; + + context->destroy = __glXdirectContextDestroy; + + return context; +} + +/** + * Create a GL context with the given properties. This routine is used + * to implement \c glXCreateContext, \c glXCreateNewContext, and + * \c glXCreateContextWithConfigSGIX. This works becuase of the hack way + * that GLXFBConfigs are implemented. Basically, the FBConfigID is the + * same as the VisualID. + */ + +static int +DoCreateContext(__GLXclientState *cl, GLXContextID gcId, + GLXContextID shareList, __GLXconfig *config, + __GLXscreen *pGlxScreen, GLboolean isDirect) +{ + ClientPtr client = cl->client; + __GLXcontext *glxc, *shareglxc; + int err; + + LEGAL_NEW_RESOURCE(gcId, client); + + /* + ** Find the display list space that we want to share. + ** + ** NOTE: In a multithreaded X server, we would need to keep a reference + ** count for each display list so that if one client detroyed a list that + ** another client was using, the list would not really be freed until it + ** was no longer in use. Since this sample implementation has no support + ** for multithreaded servers, we don't do this. + */ + if (shareList == None) { + shareglxc = 0; + } else { + if (!validGlxContext(client, shareList, DixReadAccess, + &shareglxc, &err)) + return err; + + if (shareglxc->isDirect) { + /* + ** NOTE: no support for sharing display lists between direct + ** contexts, even if they are in the same address space. + */ +#if 0 + /* Disabling this code seems to allow shared display lists + * and texture objects to work. We'll leave it disabled for now. + */ + client->errorValue = shareList; + return BadMatch; +#endif + } else { + /* + ** Create an indirect context regardless of what the client asked + ** for; this way we can share display list space with shareList. + */ + isDirect = GL_FALSE; + } + } + + /* + ** Allocate memory for the new context + */ + if (!isDirect) + glxc = pGlxScreen->createContext(pGlxScreen, config, shareglxc); + else + glxc = __glXdirectContextCreate(pGlxScreen, config, shareglxc); + if (!glxc) { + return BadAlloc; + } + + /* + ** Initially, setup the part of the context that could be used by + ** a GL core that needs windowing information (e.g., Mesa). + */ + glxc->pGlxScreen = pGlxScreen; + glxc->config = config; + + /* + ** Register this context as a resource. + */ + if (!AddResource(gcId, __glXContextRes, (pointer)glxc)) { + (*glxc->destroy)(glxc); + client->errorValue = gcId; + return BadAlloc; + } + + /* + ** Finally, now that everything is working, setup the rest of the + ** context. + */ + glxc->id = gcId; + glxc->share_id = shareList; + glxc->idExists = GL_TRUE; + glxc->isCurrent = GL_FALSE; + glxc->isDirect = isDirect; + glxc->renderMode = GL_RENDER; + + __glXAddToContextList(glxc); + + return Success; +} + +int __glXDisp_CreateContext(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc; + __GLXconfig *config; + __GLXscreen *pGlxScreen; + int err; + + REQUEST_SIZE_MATCH(xGLXCreateContextReq); + + if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) + return err; + if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err)) + return err; + + return DoCreateContext(cl, req->context, req->shareList, + config, pGlxScreen, req->isDirect); +} + +int __glXDisp_CreateNewContext(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc; + __GLXconfig *config; + __GLXscreen *pGlxScreen; + int err; + + REQUEST_SIZE_MATCH(xGLXCreateNewContextReq); + + if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) + return err; + if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) + return err; + + return DoCreateContext(cl, req->context, req->shareList, + config, pGlxScreen, req->isDirect); +} + +int __glXDisp_CreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreateContextWithConfigSGIXReq *req = + (xGLXCreateContextWithConfigSGIXReq *) pc; + __GLXconfig *config; + __GLXscreen *pGlxScreen; + int err; + + REQUEST_SIZE_MATCH(xGLXCreateContextWithConfigSGIXReq); + + if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) + return err; + if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) + return err; + + return DoCreateContext(cl, req->context, req->shareList, + config, pGlxScreen, req->isDirect); +} + +int __glXDisp_DestroyContext(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc; + __GLXcontext *glxc; + int err; + + REQUEST_SIZE_MATCH(xGLXDestroyContextReq); + + if (!validGlxContext(cl->client, req->context, DixDestroyAccess, + &glxc, &err)) + return err; + + glxc->idExists = GL_FALSE; + if (!glxc->isCurrent) + FreeResourceByType(req->context, __glXContextRes, FALSE); + + return Success; +} + +/* + * This will return "deleted" contexts, ie, where idExists is GL_FALSE. + * Contrast validGlxContext, which will not. We're cheating here and + * using the XID as the context tag, which is fine as long as we defer + * actually destroying the context until it's no longer referenced, and + * block clients from trying to MakeCurrent on contexts that are on the + * way to destruction. Notice that DoMakeCurrent calls validGlxContext + * for new contexts but __glXLookupContextByTag for previous contexts. + */ +__GLXcontext *__glXLookupContextByTag(__GLXclientState *cl, GLXContextTag tag) +{ + __GLXcontext *ret; + + if (dixLookupResourceByType((void **)&ret, tag, __glXContextRes, + cl->client, DixUseAccess) == Success) + return ret; + + return NULL; +} + +/*****************************************************************************/ + +static void StopUsingContext(__GLXcontext *glxc) +{ + if (glxc) { + if (glxc == __glXLastContext) { + /* Tell server GL library */ + __glXLastContext = 0; + } + glxc->isCurrent = GL_FALSE; + if (!glxc->idExists) { + FreeResourceByType(glxc->id, __glXContextRes, FALSE); + } + } +} + +static void StartUsingContext(__GLXclientState *cl, __GLXcontext *glxc) +{ + glxc->isCurrent = GL_TRUE; + __glXLastContext = glxc; +} + +/** + * This is a helper function to handle the legacy (pre GLX 1.3) cases + * where passing an X window to glXMakeCurrent is valid. Given a + * resource ID, look up the GLX drawable if available, otherwise, make + * sure it's an X window and create a GLX drawable one the fly. + */ +static __GLXdrawable * +__glXGetDrawable(__GLXcontext *glxc, GLXDrawable drawId, ClientPtr client, + int *error) +{ + DrawablePtr pDraw; + __GLXdrawable *pGlxDraw; + int rc; + + if (validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY, + DixWriteAccess, &pGlxDraw, &rc)) { + if (glxc != NULL && pGlxDraw->config != glxc->config) { + client->errorValue = drawId; + *error = BadMatch; + return NULL; + } + + return pGlxDraw; + } + + /* No active context and an unknown drawable, bail. */ + if (glxc == NULL) { + client->errorValue = drawId; + *error = BadMatch; + return NULL; + } + + /* The drawId wasn't a GLX drawable. Make sure it's a window and + * create a GLXWindow for it. Check that the drawable screen + * matches the context screen and that the context fbconfig is + * compatible with the window visual. */ + + rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixGetAttrAccess); + if (rc != Success || pDraw->type != DRAWABLE_WINDOW) { + client->errorValue = drawId; + *error = __glXError(GLXBadDrawable); + return NULL; + } + + if (pDraw->pScreen != glxc->pGlxScreen->pScreen) { + client->errorValue = pDraw->pScreen->myNum; + *error = BadMatch; + return NULL; + } + + if (!validGlxFBConfigForWindow(client, glxc->config, pDraw, error)) + return NULL; + + pGlxDraw = glxc->pGlxScreen->createDrawable(client, glxc->pGlxScreen, + pDraw, drawId, + GLX_DRAWABLE_WINDOW, + drawId, glxc->config); + + /* since we are creating the drawablePrivate, drawId should be new */ + if (!AddResource(drawId, __glXDrawableRes, pGlxDraw)) { + pGlxDraw->destroy (pGlxDraw); + *error = BadAlloc; + return NULL; + } + + return pGlxDraw; +} + +/*****************************************************************************/ +/* +** Make an OpenGL context and drawable current. +*/ + +static int +DoMakeCurrent(__GLXclientState *cl, + GLXDrawable drawId, GLXDrawable readId, + GLXContextID contextId, GLXContextTag tag) +{ + ClientPtr client = cl->client; + xGLXMakeCurrentReply reply; + __GLXcontext *glxc, *prevglxc; + __GLXdrawable *drawPriv = NULL; + __GLXdrawable *readPriv = NULL; + int error; + GLuint mask; + + /* + ** If one is None and the other isn't, it's a bad match. + */ + + mask = (drawId == None) ? (1 << 0) : 0; + mask |= (readId == None) ? (1 << 1) : 0; + mask |= (contextId == None) ? (1 << 2) : 0; + + if ( (mask != 0x00) && (mask != 0x07) ) { + return BadMatch; + } + + /* + ** Lookup old context. If we have one, it must be in a usable state. + */ + if (tag != 0) { + prevglxc = __glXLookupContextByTag(cl, tag); + if (!prevglxc) { + /* + ** Tag for previous context is invalid. + */ + return __glXError(GLXBadContextTag); + } + if (prevglxc->renderMode != GL_RENDER) { + /* Oops. Not in render mode render. */ + client->errorValue = prevglxc->id; + return __glXError(GLXBadContextState); + } + } else { + prevglxc = 0; + } + + /* + ** Lookup new context. It must not be current for someone else. + */ + if (contextId != None) { + int status; + + if (!validGlxContext(client, contextId, DixUseAccess, &glxc, &error)) + return error; + if ((glxc != prevglxc) && glxc->isCurrent) { + /* Context is current to somebody else */ + return BadAccess; + } + + assert( drawId != None ); + assert( readId != None ); + + drawPriv = __glXGetDrawable(glxc, drawId, client, &status); + if (drawPriv == NULL) + return status; + + readPriv = __glXGetDrawable(glxc, readId, client, &status); + if (readPriv == NULL) + return status; + + } else { + /* Switching to no context. Ignore new drawable. */ + glxc = 0; + drawPriv = 0; + readPriv = 0; + } + + + if (prevglxc) { + /* + ** Flush the previous context if needed. + */ + if (prevglxc->hasUnflushedCommands) { + if (__glXForceCurrent(cl, tag, (int *)&error)) { + CALL_Flush( GET_DISPATCH(), () ); + prevglxc->hasUnflushedCommands = GL_FALSE; + } else { + return error; + } + } + + /* + ** Make the previous context not current. + */ + if (!(*prevglxc->loseCurrent)(prevglxc)) { + return __glXError(GLXBadContext); + } + __glXFlushContextCache(); + if (!prevglxc->isDirect) { + prevglxc->drawPriv = NULL; + prevglxc->readPriv = NULL; + } + } + + + if ((glxc != 0) && !glxc->isDirect) { + + glxc->drawPriv = drawPriv; + glxc->readPriv = readPriv; + + /* make the context current */ + if (!(*glxc->makeCurrent)(glxc)) { + glxc->drawPriv = NULL; + glxc->readPriv = NULL; + return __glXError(GLXBadContext); + } + + glxc->isCurrent = GL_TRUE; + } + + StopUsingContext(prevglxc); + + if (glxc) { + StartUsingContext(cl, glxc); + reply.contextTag = glxc->id; + } else { + reply.contextTag = 0; + } + + reply.length = 0; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + + if (client->swapped) { + __glXSwapMakeCurrentReply(client, &reply); + } else { + WriteToClient(client, sz_xGLXMakeCurrentReply, (char *)&reply); + } + return Success; +} + +int __glXDisp_MakeCurrent(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc; + + REQUEST_SIZE_MATCH(xGLXMakeCurrentReq); + + return DoMakeCurrent( cl, req->drawable, req->drawable, + req->context, req->oldContextTag ); +} + +int __glXDisp_MakeContextCurrent(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc; + + REQUEST_SIZE_MATCH(xGLXMakeContextCurrentReq); + + return DoMakeCurrent( cl, req->drawable, req->readdrawable, + req->context, req->oldContextTag ); +} + +int __glXDisp_MakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc; + + REQUEST_SIZE_MATCH(xGLXMakeCurrentReadSGIReq); + + return DoMakeCurrent( cl, req->drawable, req->readable, + req->context, req->oldContextTag ); +} + +int __glXDisp_IsDirect(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc; + xGLXIsDirectReply reply; + __GLXcontext *glxc; + int err; + + REQUEST_SIZE_MATCH(xGLXIsDirectReq); + + if (!validGlxContext(cl->client, req->context, DixReadAccess, &glxc, &err)) + return err; + + reply.isDirect = glxc->isDirect; + reply.length = 0; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + + if (client->swapped) { + __glXSwapIsDirectReply(client, &reply); + } else { + WriteToClient(client, sz_xGLXIsDirectReply, (char *)&reply); + } + + return Success; +} + +int __glXDisp_QueryVersion(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc; + xGLXQueryVersionReply reply; + GLuint major, minor; + + REQUEST_SIZE_MATCH(xGLXQueryVersionReq); + + major = req->majorVersion; + minor = req->minorVersion; + (void)major; + (void)minor; + + /* + ** Server should take into consideration the version numbers sent by the + ** client if it wants to work with older clients; however, in this + ** implementation the server just returns its version number. + */ + reply.majorVersion = glxMajorVersion; + reply.minorVersion = glxMinorVersion; + reply.length = 0; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + + if (client->swapped) { + __glXSwapQueryVersionReply(client, &reply); + } else { + WriteToClient(client, sz_xGLXQueryVersionReply, (char *)&reply); + } + return Success; +} + +int __glXDisp_WaitGL(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXWaitGLReq *req = (xGLXWaitGLReq *)pc; + GLXContextTag tag; + __GLXcontext *glxc = NULL; + int error; + + REQUEST_SIZE_MATCH(xGLXWaitGLReq); + + tag = req->contextTag; + if (tag) { + glxc = __glXLookupContextByTag(cl, tag); + if (!glxc) + return __glXError(GLXBadContextTag); + + if (!__glXForceCurrent(cl, req->contextTag, &error)) + return error; + + CALL_Finish( GET_DISPATCH(), () ); + } + + if (glxc && glxc->drawPriv->waitGL) + (*glxc->drawPriv->waitGL)(glxc->drawPriv); + + return Success; +} + +int __glXDisp_WaitX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXWaitXReq *req = (xGLXWaitXReq *)pc; + GLXContextTag tag; + __GLXcontext *glxc = NULL; + int error; + + REQUEST_SIZE_MATCH(xGLXWaitXReq); + + tag = req->contextTag; + if (tag) { + glxc = __glXLookupContextByTag(cl, tag); + if (!glxc) + return __glXError(GLXBadContextTag); + + if (!__glXForceCurrent(cl, req->contextTag, &error)) + return error; + } + + if (glxc && glxc->drawPriv->waitX) + (*glxc->drawPriv->waitX)(glxc->drawPriv); + + return Success; +} + +int __glXDisp_CopyContext(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc; + GLXContextID source; + GLXContextID dest; + GLXContextTag tag; + unsigned long mask; + __GLXcontext *src, *dst; + int error; + + REQUEST_SIZE_MATCH(xGLXCopyContextReq); + + source = req->source; + dest = req->dest; + tag = req->contextTag; + mask = req->mask; + if (!validGlxContext(cl->client, source, DixReadAccess, &src, &error)) + return error; + if (!validGlxContext(cl->client, dest, DixWriteAccess, &dst, &error)) + return error; + + /* + ** They must be in the same address space, and same screen. + ** NOTE: no support for direct rendering contexts here. + */ + if (src->isDirect || dst->isDirect || + (src->pGlxScreen != dst->pGlxScreen)) { + client->errorValue = source; + return BadMatch; + } + + /* + ** The destination context must not be current for any client. + */ + if (dst->isCurrent) { + client->errorValue = dest; + return BadAccess; + } + + if (tag) { + __GLXcontext *tagcx = __glXLookupContextByTag(cl, tag); + + if (!tagcx) { + return __glXError(GLXBadContextTag); + } + if (tagcx != src) { + /* + ** This would be caused by a faulty implementation of the client + ** library. + */ + return BadMatch; + } + /* + ** In this case, glXCopyContext is in both GL and X streams, in terms + ** of sequentiality. + */ + if (__glXForceCurrent(cl, tag, &error)) { + /* + ** Do whatever is needed to make sure that all preceding requests + ** in both streams are completed before the copy is executed. + */ + CALL_Finish( GET_DISPATCH(), () ); + tagcx->hasUnflushedCommands = GL_FALSE; + } else { + return error; + } + } + /* + ** Issue copy. The only reason for failure is a bad mask. + */ + if (!(*dst->copy)(dst, src, mask)) { + client->errorValue = mask; + return BadValue; + } + return Success; +} + +enum { + GLX_VIS_CONFIG_UNPAIRED = 18, + GLX_VIS_CONFIG_PAIRED = 20 +}; + +enum { + GLX_VIS_CONFIG_TOTAL = GLX_VIS_CONFIG_UNPAIRED + GLX_VIS_CONFIG_PAIRED +}; + +int __glXDisp_GetVisualConfigs(__GLXclientState *cl, GLbyte *pc) +{ + xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc; + ClientPtr client = cl->client; + xGLXGetVisualConfigsReply reply; + __GLXscreen *pGlxScreen; + __GLXconfig *modes; + CARD32 buf[GLX_VIS_CONFIG_TOTAL]; + int p, i, err; + __GLX_DECLARE_SWAP_VARIABLES; + __GLX_DECLARE_SWAP_ARRAY_VARIABLES; + + REQUEST_SIZE_MATCH(xGLXGetVisualConfigsReq); + + if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) + return err; + + reply.numVisuals = pGlxScreen->numVisuals; + reply.numProps = GLX_VIS_CONFIG_TOTAL; + reply.length = (reply.numVisuals * __GLX_SIZE_CARD32 * GLX_VIS_CONFIG_TOTAL) >> 2; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + + if (client->swapped) { + __GLX_SWAP_SHORT(&reply.sequenceNumber); + __GLX_SWAP_INT(&reply.length); + __GLX_SWAP_INT(&reply.numVisuals); + __GLX_SWAP_INT(&reply.numProps); + } + + WriteToClient(client, sz_xGLXGetVisualConfigsReply, (char *)&reply); + + for (i = 0; i < pGlxScreen->numVisuals; i++) { + modes = pGlxScreen->visuals[i]; + + p = 0; + buf[p++] = modes->visualID; + buf[p++] = glxConvertToXVisualType( modes->visualType ); + buf[p++] = (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE; + + buf[p++] = modes->redBits; + buf[p++] = modes->greenBits; + buf[p++] = modes->blueBits; + buf[p++] = modes->alphaBits; + buf[p++] = modes->accumRedBits; + buf[p++] = modes->accumGreenBits; + buf[p++] = modes->accumBlueBits; + buf[p++] = modes->accumAlphaBits; + + buf[p++] = modes->doubleBufferMode; + buf[p++] = modes->stereoMode; + + buf[p++] = modes->rgbBits; + buf[p++] = modes->depthBits; + buf[p++] = modes->stencilBits; + buf[p++] = modes->numAuxBuffers; + buf[p++] = modes->level; + + assert(p == GLX_VIS_CONFIG_UNPAIRED); + /* + ** Add token/value pairs for extensions. + */ + buf[p++] = GLX_VISUAL_CAVEAT_EXT; + buf[p++] = modes->visualRating; + buf[p++] = GLX_TRANSPARENT_TYPE; + buf[p++] = modes->transparentPixel; + buf[p++] = GLX_TRANSPARENT_RED_VALUE; + buf[p++] = modes->transparentRed; + buf[p++] = GLX_TRANSPARENT_GREEN_VALUE; + buf[p++] = modes->transparentGreen; + buf[p++] = GLX_TRANSPARENT_BLUE_VALUE; + buf[p++] = modes->transparentBlue; + buf[p++] = GLX_TRANSPARENT_ALPHA_VALUE; + buf[p++] = modes->transparentAlpha; + buf[p++] = GLX_TRANSPARENT_INDEX_VALUE; + buf[p++] = modes->transparentIndex; + buf[p++] = GLX_SAMPLES_SGIS; + buf[p++] = modes->samples; + buf[p++] = GLX_SAMPLE_BUFFERS_SGIS; + buf[p++] = modes->sampleBuffers; + buf[p++] = 0; /* copy over visualSelectGroup (GLX_VISUAL_SELECT_GROUP_SGIX)? */ + buf[p++] = 0; + + assert(p == GLX_VIS_CONFIG_TOTAL); + if (client->swapped) { + __GLX_SWAP_INT_ARRAY(buf, p); + } + WriteToClient(client, __GLX_SIZE_CARD32 * p, (char *)buf); + } + return Success; +} + +#define __GLX_TOTAL_FBCONFIG_ATTRIBS (36) +#define __GLX_FBCONFIG_ATTRIBS_LENGTH (__GLX_TOTAL_FBCONFIG_ATTRIBS * 2) +/** + * Send the set of GLXFBConfigs to the client. There is not currently + * and interface into the driver on the server-side to get GLXFBConfigs, + * so we "invent" some based on the \c __GLXvisualConfig structures that + * the driver does supply. + * + * The reply format for both \c glXGetFBConfigs and \c glXGetFBConfigsSGIX + * is the same, so this routine pulls double duty. + */ + +static int +DoGetFBConfigs(__GLXclientState *cl, unsigned screen) +{ + ClientPtr client = cl->client; + xGLXGetFBConfigsReply reply; + __GLXscreen *pGlxScreen; + CARD32 buf[__GLX_FBCONFIG_ATTRIBS_LENGTH]; + int p, err; + __GLXconfig *modes; + __GLX_DECLARE_SWAP_VARIABLES; + __GLX_DECLARE_SWAP_ARRAY_VARIABLES; + + if (!validGlxScreen(cl->client, screen, &pGlxScreen, &err)) + return err; + + reply.numFBConfigs = pGlxScreen->numFBConfigs; + reply.numAttribs = __GLX_TOTAL_FBCONFIG_ATTRIBS; + reply.length = (__GLX_FBCONFIG_ATTRIBS_LENGTH * reply.numFBConfigs); + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + + if (client->swapped) { + __GLX_SWAP_SHORT(&reply.sequenceNumber); + __GLX_SWAP_INT(&reply.length); + __GLX_SWAP_INT(&reply.numFBConfigs); + __GLX_SWAP_INT(&reply.numAttribs); + } + + WriteToClient(client, sz_xGLXGetFBConfigsReply, (char *)&reply); + + for (modes = pGlxScreen->fbconfigs; modes != NULL; modes = modes->next) { + p = 0; + +#define WRITE_PAIR(tag,value) \ + do { buf[p++] = tag ; buf[p++] = value ; } while( 0 ) + + WRITE_PAIR( GLX_VISUAL_ID, modes->visualID ); + WRITE_PAIR( GLX_FBCONFIG_ID, modes->fbconfigID ); + WRITE_PAIR( GLX_X_RENDERABLE, GL_TRUE ); + + WRITE_PAIR( GLX_RGBA, + (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE ); + WRITE_PAIR( GLX_RENDER_TYPE, modes->renderType ); + WRITE_PAIR( GLX_DOUBLEBUFFER, modes->doubleBufferMode ); + WRITE_PAIR( GLX_STEREO, modes->stereoMode ); + + WRITE_PAIR( GLX_BUFFER_SIZE, modes->rgbBits ); + WRITE_PAIR( GLX_LEVEL, modes->level ); + WRITE_PAIR( GLX_AUX_BUFFERS, modes->numAuxBuffers ); + WRITE_PAIR( GLX_RED_SIZE, modes->redBits ); + WRITE_PAIR( GLX_GREEN_SIZE, modes->greenBits ); + WRITE_PAIR( GLX_BLUE_SIZE, modes->blueBits ); + WRITE_PAIR( GLX_ALPHA_SIZE, modes->alphaBits ); + WRITE_PAIR( GLX_ACCUM_RED_SIZE, modes->accumRedBits ); + WRITE_PAIR( GLX_ACCUM_GREEN_SIZE, modes->accumGreenBits ); + WRITE_PAIR( GLX_ACCUM_BLUE_SIZE, modes->accumBlueBits ); + WRITE_PAIR( GLX_ACCUM_ALPHA_SIZE, modes->accumAlphaBits ); + WRITE_PAIR( GLX_DEPTH_SIZE, modes->depthBits ); + WRITE_PAIR( GLX_STENCIL_SIZE, modes->stencilBits ); + WRITE_PAIR( GLX_X_VISUAL_TYPE, modes->visualType ); + WRITE_PAIR( GLX_CONFIG_CAVEAT, modes->visualRating ); + WRITE_PAIR( GLX_TRANSPARENT_TYPE, modes->transparentPixel ); + WRITE_PAIR( GLX_TRANSPARENT_RED_VALUE, modes->transparentRed ); + WRITE_PAIR( GLX_TRANSPARENT_GREEN_VALUE, modes->transparentGreen ); + WRITE_PAIR( GLX_TRANSPARENT_BLUE_VALUE, modes->transparentBlue ); + WRITE_PAIR( GLX_TRANSPARENT_ALPHA_VALUE, modes->transparentAlpha ); + WRITE_PAIR( GLX_TRANSPARENT_INDEX_VALUE, modes->transparentIndex ); + WRITE_PAIR( GLX_SWAP_METHOD_OML, modes->swapMethod ); + WRITE_PAIR( GLX_SAMPLES_SGIS, modes->samples ); + WRITE_PAIR( GLX_SAMPLE_BUFFERS_SGIS, modes->sampleBuffers ); + /* GLX_VISUAL_SELECT_GROUP_SGIX ? */ + WRITE_PAIR( GLX_DRAWABLE_TYPE, modes->drawableType ); + WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGB_EXT, modes->bindToTextureRgb ); + WRITE_PAIR( GLX_BIND_TO_TEXTURE_RGBA_EXT, modes->bindToTextureRgba ); + WRITE_PAIR( GLX_BIND_TO_MIPMAP_TEXTURE_EXT, modes->bindToMipmapTexture ); + WRITE_PAIR( GLX_BIND_TO_TEXTURE_TARGETS_EXT, modes->bindToTextureTargets ); + + if (client->swapped) { + __GLX_SWAP_INT_ARRAY(buf, __GLX_FBCONFIG_ATTRIBS_LENGTH); + } + WriteToClient(client, __GLX_SIZE_CARD32 * __GLX_FBCONFIG_ATTRIBS_LENGTH, + (char *)buf); + } + return Success; +} + + +int __glXDisp_GetFBConfigs(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc; + REQUEST_SIZE_MATCH(xGLXGetFBConfigsReq); + return DoGetFBConfigs(cl, req->screen); +} + +int __glXDisp_GetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc; + /* work around mesa bug, don't use REQUEST_SIZE_MATCH */ + REQUEST_AT_LEAST_SIZE(xGLXGetFBConfigsSGIXReq); + return DoGetFBConfigs(cl, req->screen); +} + +GLboolean +__glXDrawableInit(__GLXdrawable *drawable, + __GLXscreen *screen, DrawablePtr pDraw, int type, + XID drawId, __GLXconfig *config) +{ + drawable->pDraw = pDraw; + drawable->type = type; + drawable->drawId = drawId; + drawable->config = config; + drawable->eventMask = 0; + + return GL_TRUE; +} + +void +__glXDrawableRelease(__GLXdrawable *drawable) +{ +} + +static int +DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen, + __GLXconfig *config, DrawablePtr pDraw, XID drawableId, + XID glxDrawableId, int type) +{ + __GLXdrawable *pGlxDraw; + + if (pGlxScreen->pScreen != pDraw->pScreen) + return BadMatch; + + pGlxDraw = pGlxScreen->createDrawable(client, pGlxScreen, pDraw, + drawableId, type, + glxDrawableId, config); + if (pGlxDraw == NULL) + return BadAlloc; + + if (!AddResource(glxDrawableId, __glXDrawableRes, pGlxDraw)) { + pGlxDraw->destroy (pGlxDraw); + return BadAlloc; + } + + /* + * Windows aren't refcounted, so track both the X and the GLX window + * so we get called regardless of destruction order. + */ + if (drawableId != glxDrawableId && type == GLX_DRAWABLE_WINDOW && + !AddResource(pDraw->id, __glXDrawableRes, pGlxDraw)) { + pGlxDraw->destroy (pGlxDraw); + return BadAlloc; + } + + return Success; +} + +static int +DoCreateGLXPixmap(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *config, + XID drawableId, XID glxDrawableId) +{ + DrawablePtr pDraw; + int err; + + LEGAL_NEW_RESOURCE(glxDrawableId, client); + + err = dixLookupDrawable(&pDraw, drawableId, client, 0, DixAddAccess); + if (err != Success) { + client->errorValue = drawableId; + return err; + } + if (pDraw->type != DRAWABLE_PIXMAP) { + client->errorValue = drawableId; + return BadPixmap; + } + + err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw, drawableId, + glxDrawableId, GLX_DRAWABLE_PIXMAP); + + ((PixmapPtr)pDraw)->refcnt++; + + return err; +} + +static void +determineTextureTarget(ClientPtr client, XID glxDrawableID, + CARD32 *attribs, CARD32 numAttribs) +{ + GLenum target = 0; + GLenum format = 0; + int i, err; + __GLXdrawable *pGlxDraw; + + if (!validGlxDrawable(client, glxDrawableID, GLX_DRAWABLE_PIXMAP, + DixWriteAccess, &pGlxDraw, &err)) + /* We just added it in CreatePixmap, so we should never get here. */ + return; + + for (i = 0; i < numAttribs; i++) { + if (attribs[2 * i] == GLX_TEXTURE_TARGET_EXT) { + switch (attribs[2 * i + 1]) { + case GLX_TEXTURE_2D_EXT: + target = GL_TEXTURE_2D; + break; + case GLX_TEXTURE_RECTANGLE_EXT: + target = GL_TEXTURE_RECTANGLE_ARB; + break; + } + } + + if (attribs[2 * i] == GLX_TEXTURE_FORMAT_EXT) + format = attribs[2 * i + 1]; + } + + if (!target) { + int w = pGlxDraw->pDraw->width, h = pGlxDraw->pDraw->height; + + if (h & (h - 1) || w & (w - 1)) + target = GL_TEXTURE_RECTANGLE_ARB; + else + target = GL_TEXTURE_2D; + } + + pGlxDraw->target = target; + pGlxDraw->format = format; +} + +int __glXDisp_CreateGLXPixmap(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc; + __GLXconfig *config; + __GLXscreen *pGlxScreen; + int err; + + REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapReq); + + if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) + return err; + if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err)) + return err; + + return DoCreateGLXPixmap(cl->client, pGlxScreen, config, + req->pixmap, req->glxpixmap); +} + +int __glXDisp_CreatePixmap(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc; + __GLXconfig *config; + __GLXscreen *pGlxScreen; + int err; + + REQUEST_AT_LEAST_SIZE(xGLXCreatePixmapReq); + if (req->numAttribs > (UINT32_MAX >> 3)) { + client->errorValue = req->numAttribs; + return BadValue; + } + REQUEST_FIXED_SIZE(xGLXCreatePixmapReq, req->numAttribs << 3); + + if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) + return err; + if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) + return err; + + err = DoCreateGLXPixmap(cl->client, pGlxScreen, config, + req->pixmap, req->glxpixmap); + if (err != Success) + return err; + + determineTextureTarget(cl->client, req->glxpixmap, + (CARD32*) (req + 1), req->numAttribs); + + return Success; +} + +int __glXDisp_CreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreateGLXPixmapWithConfigSGIXReq *req = + (xGLXCreateGLXPixmapWithConfigSGIXReq *) pc; + __GLXconfig *config; + __GLXscreen *pGlxScreen; + int err; + + REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapWithConfigSGIXReq); + + if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) + return err; + if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) + return err; + + return DoCreateGLXPixmap(cl->client, pGlxScreen, + config, req->pixmap, req->glxpixmap); +} + + +static int DoDestroyDrawable(__GLXclientState *cl, XID glxdrawable, int type) +{ + __GLXdrawable *pGlxDraw; + int err; + + if (!validGlxDrawable(cl->client, glxdrawable, type, + DixDestroyAccess, &pGlxDraw, &err)) + return err; + + FreeResource(glxdrawable, FALSE); + + return Success; +} + +int __glXDisp_DestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc; + + REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq); + + return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP); +} + +int __glXDisp_DestroyPixmap(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXDestroyPixmapReq *req = (xGLXDestroyPixmapReq *) pc; + + /* should be REQUEST_SIZE_MATCH, but mesa's glXDestroyPixmap used to set + * length to 3 instead of 2 */ + REQUEST_AT_LEAST_SIZE(xGLXDestroyPixmapReq); + + return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP); +} + +static int +DoCreatePbuffer(ClientPtr client, int screenNum, XID fbconfigId, + int width, int height, XID glxDrawableId) +{ + __GLXconfig *config; + __GLXscreen *pGlxScreen; + PixmapPtr pPixmap; + int err; + + LEGAL_NEW_RESOURCE(glxDrawableId, client); + + if (!validGlxScreen(client, screenNum, &pGlxScreen, &err)) + return err; + if (!validGlxFBConfig(client, pGlxScreen, fbconfigId, &config, &err)) + return err; + + __glXenterServer(GL_FALSE); + pPixmap = (*pGlxScreen->pScreen->CreatePixmap) (pGlxScreen->pScreen, + width, height, config->rgbBits, 0); + __glXleaveServer(GL_FALSE); + + /* Assign the pixmap the same id as the pbuffer and add it as a + * resource so it and the DRI2 drawable will be reclaimed when the + * pbuffer is destroyed. */ + pPixmap->drawable.id = glxDrawableId; + if (!AddResource(pPixmap->drawable.id, RT_PIXMAP, pPixmap)) + return BadAlloc; + + return DoCreateGLXDrawable(client, pGlxScreen, config, &pPixmap->drawable, + glxDrawableId, glxDrawableId, + GLX_DRAWABLE_PBUFFER); +} + +int __glXDisp_CreatePbuffer(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreatePbufferReq *req = (xGLXCreatePbufferReq *) pc; + CARD32 *attrs; + int width, height, i; + + REQUEST_AT_LEAST_SIZE(xGLXCreatePbufferReq); + if (req->numAttribs > (UINT32_MAX >> 3)) { + client->errorValue = req->numAttribs; + return BadValue; + } + REQUEST_FIXED_SIZE(xGLXCreatePbufferReq, req->numAttribs << 3); + + attrs = (CARD32 *) (req + 1); + width = 0; + height = 0; + + for (i = 0; i < req->numAttribs; i++) { + switch (attrs[i * 2]) { + case GLX_PBUFFER_WIDTH: + width = attrs[i * 2 + 1]; + break; + case GLX_PBUFFER_HEIGHT: + height = attrs[i * 2 + 1]; + break; + case GLX_LARGEST_PBUFFER: + case GLX_PRESERVED_CONTENTS: + /* FIXME: huh... */ + break; + } + } + + return DoCreatePbuffer(cl->client, req->screen, req->fbconfig, + width, height, req->pbuffer); +} + +int __glXDisp_CreateGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc; + + REQUEST_AT_LEAST_SIZE(xGLXCreateGLXPbufferSGIXReq); + + return DoCreatePbuffer(cl->client, req->screen, req->fbconfig, + req->width, req->height, req->pbuffer); +} + +int __glXDisp_DestroyPbuffer(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc; + + REQUEST_SIZE_MATCH(xGLXDestroyPbufferReq); + + return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER); +} + +int __glXDisp_DestroyGLXPbufferSGIX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc; + + REQUEST_SIZE_MATCH(xGLXDestroyGLXPbufferSGIXReq); + + return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER); +} + +static int +DoChangeDrawableAttributes(ClientPtr client, XID glxdrawable, + int numAttribs, CARD32 *attribs) +{ + __GLXdrawable *pGlxDraw; + int i, err; + + if (!validGlxDrawable(client, glxdrawable, GLX_DRAWABLE_ANY, + DixSetAttrAccess, &pGlxDraw, &err)) + return err; + + for (i = 0; i < numAttribs; i++) { + switch(attribs[i * 2]) { + case GLX_EVENT_MASK: + /* All we do is to record the event mask so we can send it + * back when queried. We never actually clobber the + * pbuffers, so we never need to send out the event. */ + pGlxDraw->eventMask = attribs[i * 2 + 1]; + break; + } + } + + return Success; +} + +int __glXDisp_ChangeDrawableAttributes(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXChangeDrawableAttributesReq *req = + (xGLXChangeDrawableAttributesReq *) pc; + + REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesReq); + if (req->numAttribs > (UINT32_MAX >> 3)) { + client->errorValue = req->numAttribs; + return BadValue; + } +#if 0 + /* mesa sends an additional 8 bytes */ + REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesReq, req->numAttribs << 3); +#else + if (((sizeof(xGLXChangeDrawableAttributesReq) + (req->numAttribs << 3)) >> 2) < client->req_len) + return BadLength; +#endif + + return DoChangeDrawableAttributes(cl->client, req->drawable, + req->numAttribs, (CARD32 *) (req + 1)); +} + +int __glXDisp_ChangeDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXChangeDrawableAttributesSGIXReq *req = + (xGLXChangeDrawableAttributesSGIXReq *)pc; + + REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesSGIXReq); + if (req->numAttribs > (UINT32_MAX >> 3)) { + client->errorValue = req->numAttribs; + return BadValue; + } + REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesSGIXReq, req->numAttribs << 3); + + return DoChangeDrawableAttributes(cl->client, req->drawable, + req->numAttribs, (CARD32 *) (req + 1)); +} + +int __glXDisp_CreateWindow(__GLXclientState *cl, GLbyte *pc) +{ + xGLXCreateWindowReq *req = (xGLXCreateWindowReq *) pc; + __GLXconfig *config; + __GLXscreen *pGlxScreen; + ClientPtr client = cl->client; + DrawablePtr pDraw; + int err; + + REQUEST_AT_LEAST_SIZE(xGLXCreateWindowReq); + if (req->numAttribs > (UINT32_MAX >> 3)) { + client->errorValue = req->numAttribs; + return BadValue; + } + REQUEST_FIXED_SIZE(xGLXCreateWindowReq, req->numAttribs << 3); + + LEGAL_NEW_RESOURCE(req->glxwindow, client); + + if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) + return err; + if (!validGlxFBConfig(client, pGlxScreen, req->fbconfig, &config, &err)) + return err; + + err = dixLookupDrawable(&pDraw, req->window, client, 0, DixAddAccess); + if (err != Success || pDraw->type != DRAWABLE_WINDOW) { + client->errorValue = req->window; + return BadWindow; + } + + if (!validGlxFBConfigForWindow(client, config, pDraw, &err)) + return err; + + return DoCreateGLXDrawable(client, pGlxScreen, config, + pDraw, req->window, + req->glxwindow, GLX_DRAWABLE_WINDOW); +} + +int __glXDisp_DestroyWindow(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc; + + /* mesa's glXDestroyWindow used to set length to 3 instead of 2 */ + REQUEST_AT_LEAST_SIZE(xGLXDestroyWindowReq); + + return DoDestroyDrawable(cl, req->glxwindow, GLX_DRAWABLE_WINDOW); +} + + +/*****************************************************************************/ + +/* +** NOTE: There is no portable implementation for swap buffers as of +** this time that is of value. Consequently, this code must be +** implemented by somebody other than SGI. +*/ +int __glXDisp_SwapBuffers(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc; + GLXContextTag tag; + XID drawId; + __GLXcontext *glxc = NULL; + __GLXdrawable *pGlxDraw; + int error; + + REQUEST_SIZE_MATCH(xGLXSwapBuffersReq); + + tag = req->contextTag; + drawId = req->drawable; + if (tag) { + glxc = __glXLookupContextByTag(cl, tag); + if (!glxc) { + return __glXError(GLXBadContextTag); + } + /* + ** The calling thread is swapping its current drawable. In this case, + ** glxSwapBuffers is in both GL and X streams, in terms of + ** sequentiality. + */ + if (__glXForceCurrent(cl, tag, &error)) { + /* + ** Do whatever is needed to make sure that all preceding requests + ** in both streams are completed before the swap is executed. + */ + CALL_Finish( GET_DISPATCH(), () ); + glxc->hasUnflushedCommands = GL_FALSE; + } else { + return error; + } + } + + pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error); + if (pGlxDraw == NULL) + return error; + + if (pGlxDraw->type == DRAWABLE_WINDOW && + (*pGlxDraw->swapBuffers)(cl->client, pGlxDraw) == GL_FALSE) + return __glXError(GLXBadDrawable); + + return Success; +} + + +static int +DoQueryContext(__GLXclientState *cl, GLXContextID gcId) +{ + ClientPtr client = cl->client; + __GLXcontext *ctx; + xGLXQueryContextInfoEXTReply reply; + int nProps; + int *sendBuf, *pSendBuf; + int nReplyBytes; + int err; + + if (!validGlxContext(cl->client, gcId, DixReadAccess, &ctx, &err)) + return err; + + nProps = 3; + reply.length = nProps << 1; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + reply.n = nProps; + + nReplyBytes = reply.length << 2; + sendBuf = (int *)malloc((size_t)nReplyBytes); + if (sendBuf == NULL) { + return __glXError(GLXBadContext); /* XXX: Is this correct? */ + } + pSendBuf = sendBuf; + *pSendBuf++ = GLX_SHARE_CONTEXT_EXT; + *pSendBuf++ = (int)(ctx->share_id); + *pSendBuf++ = GLX_VISUAL_ID_EXT; + *pSendBuf++ = (int)(ctx->config->visualID); + *pSendBuf++ = GLX_SCREEN_EXT; + *pSendBuf++ = (int)(ctx->pGlxScreen->pScreen->myNum); + + if (client->swapped) { + __glXSwapQueryContextInfoEXTReply(client, &reply, sendBuf); + } else { + WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, (char *)&reply); + WriteToClient(client, nReplyBytes, (char *)sendBuf); + } + free((char *)sendBuf); + + return Success; +} + +int __glXDisp_QueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc; + + REQUEST_SIZE_MATCH(xGLXQueryContextInfoEXTReq); + + return DoQueryContext(cl, req->context); +} + +int __glXDisp_QueryContext(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc; + + REQUEST_SIZE_MATCH(xGLXQueryContextReq); + + return DoQueryContext(cl, req->context); +} + +int __glXDisp_BindTexImageEXT(__GLXclientState *cl, GLbyte *pc) +{ + xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; + ClientPtr client = cl->client; + __GLXcontext *context; + __GLXdrawable *pGlxDraw; + GLXDrawable drawId; + int buffer; + int error; + CARD32 num_attribs; + + if ((sizeof(xGLXVendorPrivateReq) + 12) >> 2 > client->req_len) + return BadLength; + + pc += __GLX_VENDPRIV_HDR_SIZE; + + drawId = *((CARD32 *) (pc)); + buffer = *((INT32 *) (pc + 4)); + num_attribs = *((CARD32 *) (pc + 8)); + if (num_attribs > (UINT32_MAX >> 3)) { + client->errorValue = num_attribs; + return BadValue; + } + REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 12 + (num_attribs << 3)); + + if (buffer != GLX_FRONT_LEFT_EXT) + return __glXError(GLXBadPixmap); + + context = __glXForceCurrent (cl, req->contextTag, &error); + if (!context) + return error; + + if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP, + DixReadAccess, &pGlxDraw, &error)) + return error; + + if (!context->textureFromPixmap) + return __glXError(GLXUnsupportedPrivateRequest); + + return context->textureFromPixmap->bindTexImage(context, + buffer, + pGlxDraw); +} + +int __glXDisp_ReleaseTexImageEXT(__GLXclientState *cl, GLbyte *pc) +{ + xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; + ClientPtr client = cl->client; + __GLXdrawable *pGlxDraw; + __GLXcontext *context; + GLXDrawable drawId; + int buffer; + int error; + + REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8); + + pc += __GLX_VENDPRIV_HDR_SIZE; + + drawId = *((CARD32 *) (pc)); + buffer = *((INT32 *) (pc + 4)); + + context = __glXForceCurrent (cl, req->contextTag, &error); + if (!context) + return error; + + if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP, + DixReadAccess, &pGlxDraw, &error)) + return error; + + if (!context->textureFromPixmap) + return __glXError(GLXUnsupportedPrivateRequest); + + return context->textureFromPixmap->releaseTexImage(context, + buffer, + pGlxDraw); +} + +int __glXDisp_CopySubBufferMESA(__GLXclientState *cl, GLbyte *pc) +{ + xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; + GLXContextTag tag = req->contextTag; + __GLXcontext *glxc = NULL; + __GLXdrawable *pGlxDraw; + ClientPtr client = cl->client; + GLXDrawable drawId; + int error; + int x, y, width, height; + + (void) client; + (void) req; + + REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 20); + + pc += __GLX_VENDPRIV_HDR_SIZE; + + drawId = *((CARD32 *) (pc)); + x = *((INT32 *) (pc + 4)); + y = *((INT32 *) (pc + 8)); + width = *((INT32 *) (pc + 12)); + height = *((INT32 *) (pc + 16)); + + if (tag) { + glxc = __glXLookupContextByTag(cl, tag); + if (!glxc) { + return __glXError(GLXBadContextTag); + } + /* + ** The calling thread is swapping its current drawable. In this case, + ** glxSwapBuffers is in both GL and X streams, in terms of + ** sequentiality. + */ + if (__glXForceCurrent(cl, tag, &error)) { + /* + ** Do whatever is needed to make sure that all preceding requests + ** in both streams are completed before the swap is executed. + */ + CALL_Finish( GET_DISPATCH(), () ); + glxc->hasUnflushedCommands = GL_FALSE; + } else { + return error; + } + } + + pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error); + if (!pGlxDraw) + return error; + + if (pGlxDraw == NULL || + pGlxDraw->type != GLX_DRAWABLE_WINDOW || + pGlxDraw->copySubBuffer == NULL) + return __glXError(GLXBadDrawable); + + (*pGlxDraw->copySubBuffer)(pGlxDraw, x, y, width, height); + + return Success; +} + +/* +** Get drawable attributes +*/ +static int +DoGetDrawableAttributes(__GLXclientState *cl, XID drawId) +{ + ClientPtr client = cl->client; + xGLXGetDrawableAttributesReply reply; + __GLXdrawable *pGlxDraw; + CARD32 attributes[6]; + int numAttribs, error; + + if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY, + DixGetAttrAccess, &pGlxDraw, &error)) + return error; + + numAttribs = 3; + reply.length = numAttribs << 1; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + reply.numAttribs = numAttribs; + + attributes[0] = GLX_TEXTURE_TARGET_EXT; + attributes[1] = pGlxDraw->target == GL_TEXTURE_2D ? GLX_TEXTURE_2D_EXT : + GLX_TEXTURE_RECTANGLE_EXT; + attributes[2] = GLX_Y_INVERTED_EXT; + attributes[3] = GL_FALSE; + attributes[4] = GLX_EVENT_MASK; + attributes[5] = pGlxDraw->eventMask; + + if (client->swapped) { + __glXSwapGetDrawableAttributesReply(client, &reply, attributes); + } else { + WriteToClient(client, sz_xGLXGetDrawableAttributesReply, + (char *)&reply); + WriteToClient(client, reply.length * sizeof (CARD32), + (char *)attributes); + } + + return Success; +} + +int __glXDisp_GetDrawableAttributes(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *)pc; + + /* this should be REQUEST_SIZE_MATCH, but mesa sends an additional 4 bytes */ + REQUEST_AT_LEAST_SIZE(xGLXGetDrawableAttributesReq); + + return DoGetDrawableAttributes(cl, req->drawable); +} + +int __glXDisp_GetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXGetDrawableAttributesSGIXReq *req = + (xGLXGetDrawableAttributesSGIXReq *)pc; + + REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesSGIXReq); + + return DoGetDrawableAttributes(cl, req->drawable); +} + +/************************************************************************/ + +/* +** Render and Renderlarge are not in the GLX API. They are used by the GLX +** client library to send batches of GL rendering commands. +*/ + +/* +** Execute all the drawing commands in a request. +*/ +int __glXDisp_Render(__GLXclientState *cl, GLbyte *pc) +{ + xGLXRenderReq *req; + ClientPtr client= cl->client; + int left, cmdlen, error; + int commandsDone; + CARD16 opcode; + __GLXrenderHeader *hdr; + __GLXcontext *glxc; + __GLX_DECLARE_SWAP_VARIABLES; + + REQUEST_AT_LEAST_SIZE(xGLXRenderReq); + + req = (xGLXRenderReq *) pc; + if (client->swapped) { + __GLX_SWAP_SHORT(&req->length); + __GLX_SWAP_INT(&req->contextTag); + } + + glxc = __glXForceCurrent(cl, req->contextTag, &error); + if (!glxc) { + return error; + } + + commandsDone = 0; + pc += sz_xGLXRenderReq; + left = (req->length << 2) - sz_xGLXRenderReq; + while (left > 0) { + __GLXrenderSizeData entry; + int extra; + __GLXdispatchRenderProcPtr proc; + int err; + + if (left < sizeof(__GLXrenderHeader)) + return BadLength; + + /* + ** Verify that the header length and the overall length agree. + ** Also, each command must be word aligned. + */ + hdr = (__GLXrenderHeader *) pc; + if (client->swapped) { + __GLX_SWAP_SHORT(&hdr->length); + __GLX_SWAP_SHORT(&hdr->opcode); + } + cmdlen = hdr->length; + opcode = hdr->opcode; + + /* + ** Check for core opcodes and grab entry data. + */ + err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry); + proc = (__GLXdispatchRenderProcPtr) + __glXGetProtocolDecodeFunction(& Render_dispatch_info, + opcode, client->swapped); + + if ((err < 0) || (proc == NULL)) { + client->errorValue = commandsDone; + return __glXError(GLXBadRenderRequest); + } + + if (entry.varsize) { + /* variable size command */ + extra = (*entry.varsize)(pc + __GLX_RENDER_HDR_SIZE, + client->swapped); + if (extra < 0) { + extra = 0; + } + if (cmdlen != __GLX_PAD(entry.bytes + extra)) { + return BadLength; + } + } else { + /* constant size command */ + if (cmdlen != __GLX_PAD(entry.bytes)) { + return BadLength; + } + } + if (left < cmdlen) { + return BadLength; + } + + /* + ** Skip over the header and execute the command. We allow the + ** caller to trash the command memory. This is useful especially + ** for things that require double alignment - they can just shift + ** the data towards lower memory (trashing the header) by 4 bytes + ** and achieve the required alignment. + */ + (*proc)(pc + __GLX_RENDER_HDR_SIZE); + pc += cmdlen; + left -= cmdlen; + commandsDone++; + } + glxc->hasUnflushedCommands = GL_TRUE; + return Success; +} + + +/* +** Execute a large rendering request (one that spans multiple X requests). +*/ +int __glXDisp_RenderLarge(__GLXclientState *cl, GLbyte *pc) +{ + xGLXRenderLargeReq *req; + ClientPtr client= cl->client; + size_t dataBytes; + __GLXrenderLargeHeader *hdr; + __GLXcontext *glxc; + int error; + CARD16 opcode; + __GLX_DECLARE_SWAP_VARIABLES; + + req = (xGLXRenderLargeReq *) pc; + if (client->swapped) { + __GLX_SWAP_SHORT(&req->length); + __GLX_SWAP_INT(&req->contextTag); + __GLX_SWAP_INT(&req->dataBytes); + __GLX_SWAP_SHORT(&req->requestNumber); + __GLX_SWAP_SHORT(&req->requestTotal); + } + + glxc = __glXForceCurrent(cl, req->contextTag, &error); + if (!glxc) { + /* Reset in case this isn't 1st request. */ + __glXResetLargeCommandStatus(cl); + return error; + } + dataBytes = req->dataBytes; + + /* + ** Check the request length. + */ + if ((req->length << 2) != __GLX_PAD(dataBytes) + sz_xGLXRenderLargeReq) { + client->errorValue = req->length; + /* Reset in case this isn't 1st request. */ + __glXResetLargeCommandStatus(cl); + return BadLength; + } + pc += sz_xGLXRenderLargeReq; + + if (cl->largeCmdRequestsSoFar == 0) { + __GLXrenderSizeData entry; + int extra; + size_t cmdlen; + int err; + + /* + ** This is the first request of a multi request command. + ** Make enough space in the buffer, then copy the entire request. + */ + if (req->requestNumber != 1) { + client->errorValue = req->requestNumber; + return __glXError(GLXBadLargeRequest); + } + + hdr = (__GLXrenderLargeHeader *) pc; + if (client->swapped) { + __GLX_SWAP_INT(&hdr->length); + __GLX_SWAP_INT(&hdr->opcode); + } + cmdlen = hdr->length; + opcode = hdr->opcode; + + /* + ** Check for core opcodes and grab entry data. + */ + err = __glXGetProtocolSizeData(& Render_dispatch_info, opcode, & entry); + if (err < 0) { + client->errorValue = opcode; + return __glXError(GLXBadLargeRequest); + } + + if (entry.varsize) { + /* + ** If it's a variable-size command (a command whose length must + ** be computed from its parameters), all the parameters needed + ** will be in the 1st request, so it's okay to do this. + */ + extra = (*entry.varsize)(pc + __GLX_RENDER_LARGE_HDR_SIZE, + client->swapped); + if (extra < 0) { + extra = 0; + } + /* large command's header is 4 bytes longer, so add 4 */ + if (cmdlen != __GLX_PAD(entry.bytes + 4 + extra)) { + return BadLength; + } + } else { + /* constant size command */ + if (cmdlen != __GLX_PAD(entry.bytes + 4)) { + return BadLength; + } + } + /* + ** Make enough space in the buffer, then copy the entire request. + */ + if (cl->largeCmdBufSize < cmdlen) { + if (!cl->largeCmdBuf) { + cl->largeCmdBuf = (GLbyte *) malloc(cmdlen); + } else { + cl->largeCmdBuf = (GLbyte *) realloc(cl->largeCmdBuf, cmdlen); + } + if (!cl->largeCmdBuf) { + return BadAlloc; + } + cl->largeCmdBufSize = cmdlen; + } + memcpy(cl->largeCmdBuf, pc, dataBytes); + + cl->largeCmdBytesSoFar = dataBytes; + cl->largeCmdBytesTotal = cmdlen; + cl->largeCmdRequestsSoFar = 1; + cl->largeCmdRequestsTotal = req->requestTotal; + return Success; + + } else { + /* + ** We are receiving subsequent (i.e. not the first) requests of a + ** multi request command. + */ + + /* + ** Check the request number and the total request count. + */ + if (req->requestNumber != cl->largeCmdRequestsSoFar + 1) { + client->errorValue = req->requestNumber; + __glXResetLargeCommandStatus(cl); + return __glXError(GLXBadLargeRequest); + } + if (req->requestTotal != cl->largeCmdRequestsTotal) { + client->errorValue = req->requestTotal; + __glXResetLargeCommandStatus(cl); + return __glXError(GLXBadLargeRequest); + } + + /* + ** Check that we didn't get too much data. + */ + if ((cl->largeCmdBytesSoFar + dataBytes) > cl->largeCmdBytesTotal) { + client->errorValue = dataBytes; + __glXResetLargeCommandStatus(cl); + return __glXError(GLXBadLargeRequest); + } + memcpy(cl->largeCmdBuf + cl->largeCmdBytesSoFar, pc, dataBytes); + cl->largeCmdBytesSoFar += dataBytes; + cl->largeCmdRequestsSoFar++; + + if (req->requestNumber == cl->largeCmdRequestsTotal) { + __GLXdispatchRenderProcPtr proc; + + /* + ** This is the last request; it must have enough bytes to complete + ** the command. + */ + /* NOTE: the two pad macros have been added below; they are needed + ** because the client library pads the total byte count, but not + ** the per-request byte counts. The Protocol Encoding says the + ** total byte count should not be padded, so a proposal will be + ** made to the ARB to relax the padding constraint on the total + ** byte count, thus preserving backward compatibility. Meanwhile, + ** the padding done below fixes a bug that did not allow + ** large commands of odd sizes to be accepted by the server. + */ + if (__GLX_PAD(cl->largeCmdBytesSoFar) != + __GLX_PAD(cl->largeCmdBytesTotal)) { + client->errorValue = dataBytes; + __glXResetLargeCommandStatus(cl); + return __glXError(GLXBadLargeRequest); + } + hdr = (__GLXrenderLargeHeader *) cl->largeCmdBuf; + /* + ** The opcode and length field in the header had already been + ** swapped when the first request was received. + ** + ** Use the opcode to index into the procedure table. + */ + opcode = hdr->opcode; + + proc = (__GLXdispatchRenderProcPtr) + __glXGetProtocolDecodeFunction(& Render_dispatch_info, opcode, + client->swapped); + if (proc == NULL) { + client->errorValue = opcode; + return __glXError(GLXBadLargeRequest); + } + + /* + ** Skip over the header and execute the command. + */ + (*proc)(cl->largeCmdBuf + __GLX_RENDER_LARGE_HDR_SIZE); + glxc->hasUnflushedCommands = GL_TRUE; + + /* + ** Reset for the next RenderLarge series. + */ + __glXResetLargeCommandStatus(cl); + } else { + /* + ** This is neither the first nor the last request. + */ + } + return Success; + } +} + +/************************************************************************/ + +/* +** No support is provided for the vendor-private requests other than +** allocating the entry points in the dispatch table. +*/ + +int __glXDisp_VendorPrivate(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; + GLint vendorcode = req->vendorCode; + __GLXdispatchVendorPrivProcPtr proc; + + REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq); + + proc = (__GLXdispatchVendorPrivProcPtr) + __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info, + vendorcode, 0); + if (proc != NULL) { + (*proc)(cl, (GLbyte*)req); + return Success; + } + + cl->client->errorValue = req->vendorCode; + return __glXError(GLXUnsupportedPrivateRequest); +} + +int __glXDisp_VendorPrivateWithReply(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; + GLint vendorcode = req->vendorCode; + __GLXdispatchVendorPrivProcPtr proc; + + REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq); + + proc = (__GLXdispatchVendorPrivProcPtr) + __glXGetProtocolDecodeFunction(& VendorPriv_dispatch_info, + vendorcode, 0); + if (proc != NULL) { + return (*proc)(cl, (GLbyte*)req); + } + + cl->client->errorValue = vendorcode; + return __glXError(GLXUnsupportedPrivateRequest); +} + +int __glXDisp_QueryExtensionsString(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *) pc; + xGLXQueryExtensionsStringReply reply; + __GLXscreen *pGlxScreen; + size_t n, length; + char *buf; + int err; + + REQUEST_SIZE_MATCH(xGLXQueryExtensionsStringReq); + + if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) + return err; + + n = strlen(pGlxScreen->GLXextensions) + 1; + length = __GLX_PAD(n) >> 2; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + reply.length = length; + reply.n = n; + + /* Allocate buffer to make sure it's a multiple of 4 bytes big.*/ + buf = (char *) malloc(length << 2); + if (buf == NULL) + return BadAlloc; + memcpy(buf, pGlxScreen->GLXextensions, n); + + if (client->swapped) { + glxSwapQueryExtensionsStringReply(client, &reply, buf); + } else { + WriteToClient(client, sz_xGLXQueryExtensionsStringReply,(char *)&reply); + WriteToClient(client, (int)(length << 2), (char *)buf); + } + + free(buf); + return Success; +} + +int __glXDisp_QueryServerString(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *) pc; + xGLXQueryServerStringReply reply; + size_t n, length; + const char *ptr; + char *buf; + __GLXscreen *pGlxScreen; + int err; + char ver_str[16]; + + REQUEST_SIZE_MATCH(xGLXQueryServerStringReq); + + if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) + return err; + + switch(req->name) { + case GLX_VENDOR: + ptr = pGlxScreen->GLXvendor; + break; + case GLX_VERSION: + /* Return to the server version rather than the screen version + * to prevent confusion when they do not match. + */ + snprintf(ver_str, 16, "%d.%d", glxMajorVersion, glxMinorVersion); + ptr = ver_str; + break; + case GLX_EXTENSIONS: + ptr = pGlxScreen->GLXextensions; + break; + default: + return BadValue; + } + + n = strlen(ptr) + 1; + length = __GLX_PAD(n) >> 2; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + reply.length = length; + reply.n = n; + + buf = (char *) malloc(length << 2); + if (buf == NULL) { + return BadAlloc; + } + memcpy(buf, ptr, n); + + if (client->swapped) { + glxSwapQueryServerStringReply(client, &reply, buf); + } else { + WriteToClient(client, sz_xGLXQueryServerStringReply, (char *)&reply); + WriteToClient(client, (int)(length << 2), buf); + } + + free(buf); + return Success; +} + +int __glXDisp_ClientInfo(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client = cl->client; + xGLXClientInfoReq *req = (xGLXClientInfoReq *) pc; + const char *buf; + + REQUEST_AT_LEAST_SIZE(xGLXClientInfoReq); + + buf = (const char *)(req+1); + if (!memchr(buf, 0, (client->req_len << 2) - sizeof(xGLXClientInfoReq))) + return BadLength; + + cl->GLClientmajorVersion = req->major; + cl->GLClientminorVersion = req->minor; + free(cl->GLClientextensions); + cl->GLClientextensions = strdup(buf); + + return Success; +} diff --git a/xorg-server/glx/glxdri2.c b/xorg-server/glx/glxdri2.c index db0d3d999..d97971739 100644 --- a/xorg-server/glx/glxdri2.c +++ b/xorg-server/glx/glxdri2.c @@ -1,791 +1,792 @@ -/* - * Copyright © 2007 Red Hat, Inc - * - * Permission to use, copy, modify, distribute, and sell this software - * and its documentation for any purpose is hereby granted without - * fee, provided that the above copyright notice appear in all copies - * and that both that copyright notice and this permission notice - * appear in supporting documentation, and that the name of Red Hat, - * Inc not be used in advertising or publicity pertaining to - * distribution of the software without specific, written prior - * permission. Red Hat, Inc makes no representations about the - * suitability of this software for any purpose. It is provided "as - * is" without express or implied warranty. - * - * RED HAT, INC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN - * NO EVENT SHALL RED HAT, INC BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS - * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, - * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifdef HAVE_DIX_CONFIG_H -#include -#endif - -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include -#include - -#define _XF86DRI_SERVER_ -#include -#include -#include - -#include "glxserver.h" -#include "glxutil.h" -#include "glxdricommon.h" - -#include "glapitable.h" -#include "glapi.h" -#include "glthread.h" -#include "dispatch.h" -#include "extension_string.h" - -typedef struct __GLXDRIscreen __GLXDRIscreen; -typedef struct __GLXDRIcontext __GLXDRIcontext; -typedef struct __GLXDRIdrawable __GLXDRIdrawable; - -struct __GLXDRIscreen { - __GLXscreen base; - __DRIscreen *driScreen; - void *driver; - int fd; - - xf86EnterVTProc *enterVT; - xf86LeaveVTProc *leaveVT; - - const __DRIcoreExtension *core; - const __DRIdri2Extension *dri2; - const __DRI2flushExtension *flush; - const __DRIcopySubBufferExtension *copySubBuffer; - const __DRIswapControlExtension *swapControl; - const __DRItexBufferExtension *texBuffer; - - unsigned char glx_enable_bits[__GLX_EXT_BYTES]; -}; - -struct __GLXDRIcontext { - __GLXcontext base; - __DRIcontext *driContext; -}; - -#define MAX_DRAWABLE_BUFFERS 5 - -struct __GLXDRIdrawable { - __GLXdrawable base; - __DRIdrawable *driDrawable; - __GLXDRIscreen *screen; - - /* Dimensions as last reported by DRI2GetBuffers. */ - int width; - int height; - __DRIbuffer buffers[MAX_DRAWABLE_BUFFERS]; - int count; -}; - -static void -__glXDRIdrawableDestroy(__GLXdrawable *drawable) -{ - __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; - const __DRIcoreExtension *core = private->screen->core; - - (*core->destroyDrawable)(private->driDrawable); - - __glXDrawableRelease(drawable); - - free(private); -} - -static void -__glXDRIdrawableCopySubBuffer(__GLXdrawable *drawable, - int x, int y, int w, int h) -{ - __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; - BoxRec box; - RegionRec region; - - box.x1 = x; - box.y1 = private->height - y - h; - box.x2 = x + w; - box.y2 = private->height - y; - RegionInit(®ion, &box, 0); - - DRI2CopyRegion(drawable->pDraw, ®ion, - DRI2BufferFrontLeft, DRI2BufferBackLeft); -} - -static void -__glXDRIdrawableWaitX(__GLXdrawable *drawable) -{ - __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; - BoxRec box; - RegionRec region; - - box.x1 = 0; - box.y1 = 0; - box.x2 = private->width; - box.y2 = private->height; - RegionInit(®ion, &box, 0); - - DRI2CopyRegion(drawable->pDraw, ®ion, - DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft); -} - -static void -__glXDRIdrawableWaitGL(__GLXdrawable *drawable) -{ - __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; - BoxRec box; - RegionRec region; - - box.x1 = 0; - box.y1 = 0; - box.x2 = private->width; - box.y2 = private->height; - RegionInit(®ion, &box, 0); - - DRI2CopyRegion(drawable->pDraw, ®ion, - DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft); -} - -static void -__glXdriSwapEvent(ClientPtr client, void *data, int type, CARD64 ust, - CARD64 msc, CARD64 sbc) -{ - __GLXdrawable *drawable = data; - xGLXBufferSwapComplete wire; - - if (!(drawable->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK)) - return; - - wire.type = __glXEventBase + GLX_BufferSwapComplete; - switch (type) { - case DRI2_EXCHANGE_COMPLETE: - wire.event_type = GLX_EXCHANGE_COMPLETE_INTEL; - break; - case DRI2_BLIT_COMPLETE: - wire.event_type = GLX_BLIT_COMPLETE_INTEL; - break; - case DRI2_FLIP_COMPLETE: - wire.event_type = GLX_FLIP_COMPLETE_INTEL; - break; - default: - /* unknown swap completion type */ - break; - } - wire.drawable = drawable->drawId; - wire.ust_hi = ust >> 32; - wire.ust_lo = ust & 0xffffffff; - wire.msc_hi = msc >> 32; - wire.msc_lo = msc & 0xffffffff; - wire.sbc_hi = sbc >> 32; - wire.sbc_lo = sbc & 0xffffffff; - - WriteEventsToClient(client, 1, (xEvent *) &wire); -} - -/* - * Copy or flip back to front, honoring the swap interval if possible. - * - * If the kernel supports it, we request an event for the frame when the - * swap should happen, then perform the copy when we receive it. - */ -static GLboolean -__glXDRIdrawableSwapBuffers(ClientPtr client, __GLXdrawable *drawable) -{ - __GLXDRIdrawable *priv = (__GLXDRIdrawable *) drawable; - __GLXDRIscreen *screen = priv->screen; - CARD64 unused; - -#if __DRI2_FLUSH_VERSION >= 3 - if (screen->flush) { - (*screen->flush->flush)(priv->driDrawable); - (*screen->flush->invalidate)(priv->driDrawable); - } -#else - if (screen->flush) - (*screen->flush->flushInvalidate)(priv->driDrawable); -#endif - - if (DRI2SwapBuffers(client, drawable->pDraw, 0, 0, 0, &unused, - __glXdriSwapEvent, drawable->pDraw) != Success) - return FALSE; - - return TRUE; -} - -static int -__glXDRIdrawableSwapInterval(__GLXdrawable *drawable, int interval) -{ - if (interval <= 0) /* || interval > BIGNUM? */ - return GLX_BAD_VALUE; - - DRI2SwapInterval(drawable->pDraw, interval); - - return 0; -} - -static void -__glXDRIcontextDestroy(__GLXcontext *baseContext) -{ - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; - - (*screen->core->destroyContext)(context->driContext); - __glXContextDestroy(&context->base); - free(context); -} - -static int -__glXDRIcontextMakeCurrent(__GLXcontext *baseContext) -{ - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv; - __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv; - __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; - - return (*screen->core->bindContext)(context->driContext, - draw->driDrawable, - read->driDrawable); -} - -static int -__glXDRIcontextLoseCurrent(__GLXcontext *baseContext) -{ - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; - - return (*screen->core->unbindContext)(context->driContext); -} - -static int -__glXDRIcontextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc, - unsigned long mask) -{ - __GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst; - __GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc; - __GLXDRIscreen *screen = (__GLXDRIscreen *) dst->base.pGlxScreen; - - return (*screen->core->copyContext)(dst->driContext, - src->driContext, mask); -} - -static Bool -__glXDRIcontextWait(__GLXcontext *baseContext, - __GLXclientState *cl, int *error) -{ - if (DRI2WaitSwap(cl->client, baseContext->drawPriv->pDraw)) { - *error = cl->client->noClientException; - return TRUE; - } - - return FALSE; -} - -#ifdef __DRI_TEX_BUFFER - -static int -__glXDRIbindTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *glxPixmap) -{ - __GLXDRIdrawable *drawable = (__GLXDRIdrawable *) glxPixmap; - const __DRItexBufferExtension *texBuffer = drawable->screen->texBuffer; - __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; - - if (texBuffer == NULL) - return Success; - -#if __DRI_TEX_BUFFER_VERSION >= 2 - if (texBuffer->base.version >= 2 && texBuffer->setTexBuffer2 != NULL) { - (*texBuffer->setTexBuffer2)(context->driContext, - glxPixmap->target, - glxPixmap->format, - drawable->driDrawable); - } else -#endif - { - texBuffer->setTexBuffer(context->driContext, - glxPixmap->target, - drawable->driDrawable); - } - - return Success; -} - -static int -__glXDRIreleaseTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *pixmap) -{ - /* FIXME: Just unbind the texture? */ - return Success; -} - -#else - -static int -__glXDRIbindTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *glxPixmap) -{ - return Success; -} - -static int -__glXDRIreleaseTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *pixmap) -{ - return Success; -} - -#endif - -static __GLXtextureFromPixmap __glXDRItextureFromPixmap = { - __glXDRIbindTexImage, - __glXDRIreleaseTexImage -}; - -static void -__glXDRIscreenDestroy(__GLXscreen *baseScreen) -{ - __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen; - - (*screen->core->destroyScreen)(screen->driScreen); - - dlclose(screen->driver); - - __glXScreenDestroy(baseScreen); - - free(screen); -} - -static __GLXcontext * -__glXDRIscreenCreateContext(__GLXscreen *baseScreen, - __GLXconfig *glxConfig, - __GLXcontext *baseShareContext) -{ - __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen; - __GLXDRIcontext *context, *shareContext; - __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig; - __DRIcontext *driShare; - - shareContext = (__GLXDRIcontext *) baseShareContext; - if (shareContext) - driShare = shareContext->driContext; - else - driShare = NULL; - - context = calloc(1, sizeof *context); - if (context == NULL) - return NULL; - - context->base.destroy = __glXDRIcontextDestroy; - context->base.makeCurrent = __glXDRIcontextMakeCurrent; - context->base.loseCurrent = __glXDRIcontextLoseCurrent; - context->base.copy = __glXDRIcontextCopy; - context->base.textureFromPixmap = &__glXDRItextureFromPixmap; - context->base.wait = __glXDRIcontextWait; - - context->driContext = - (*screen->dri2->createNewContext)(screen->driScreen, - config->driConfig, - driShare, context); - if (context->driContext == NULL) { - free(context); - return NULL; - } - - return &context->base; -} - -static void -__glXDRIinvalidateBuffers(DrawablePtr pDraw, void *priv) -{ -#if __DRI2_FLUSH_VERSION >= 3 - __GLXDRIdrawable *private = priv; - __GLXDRIscreen *screen = private->screen; - - if (screen->flush) - (*screen->flush->invalidate)(private->driDrawable); -#endif -} - -static __GLXdrawable * -__glXDRIscreenCreateDrawable(ClientPtr client, - __GLXscreen *screen, - DrawablePtr pDraw, - XID drawId, - int type, - XID glxDrawId, - __GLXconfig *glxConfig) -{ - __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen; - __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig; - __GLXDRIdrawable *private; - - private = calloc(1, sizeof *private); - if (private == NULL) - return NULL; - - private->screen = driScreen; - if (!__glXDrawableInit(&private->base, screen, - pDraw, type, glxDrawId, glxConfig)) { - free(private); - return NULL; - } - - private->base.destroy = __glXDRIdrawableDestroy; - private->base.swapBuffers = __glXDRIdrawableSwapBuffers; - private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer; - private->base.waitGL = __glXDRIdrawableWaitGL; - private->base.waitX = __glXDRIdrawableWaitX; - - if (DRI2CreateDrawable(client, pDraw, drawId, - __glXDRIinvalidateBuffers, private)) { - free(private); - return NULL; - } - - private->driDrawable = - (*driScreen->dri2->createNewDrawable)(driScreen->driScreen, - config->driConfig, private); - - return &private->base; -} - -static __DRIbuffer * -dri2GetBuffers(__DRIdrawable *driDrawable, - int *width, int *height, - unsigned int *attachments, int count, - int *out_count, void *loaderPrivate) -{ - __GLXDRIdrawable *private = loaderPrivate; - DRI2BufferPtr *buffers; - int i; - int j; - - buffers = DRI2GetBuffers(private->base.pDraw, - width, height, attachments, count, out_count); - if (*out_count > MAX_DRAWABLE_BUFFERS) { - *out_count = 0; - return NULL; - } - - private->width = *width; - private->height = *height; - - /* This assumes the DRI2 buffer attachment tokens matches the - * __DRIbuffer tokens. */ - j = 0; - for (i = 0; i < *out_count; i++) { - /* Do not send the real front buffer of a window to the client. - */ - if ((private->base.pDraw->type == DRAWABLE_WINDOW) - && (buffers[i]->attachment == DRI2BufferFrontLeft)) { - continue; - } - - private->buffers[j].attachment = buffers[i]->attachment; - private->buffers[j].name = buffers[i]->name; - private->buffers[j].pitch = buffers[i]->pitch; - private->buffers[j].cpp = buffers[i]->cpp; - private->buffers[j].flags = buffers[i]->flags; - j++; - } - - *out_count = j; - return private->buffers; -} - -static __DRIbuffer * -dri2GetBuffersWithFormat(__DRIdrawable *driDrawable, - int *width, int *height, - unsigned int *attachments, int count, - int *out_count, void *loaderPrivate) -{ - __GLXDRIdrawable *private = loaderPrivate; - DRI2BufferPtr *buffers; - int i; - int j = 0; - - buffers = DRI2GetBuffersWithFormat(private->base.pDraw, - width, height, attachments, count, - out_count); - if (*out_count > MAX_DRAWABLE_BUFFERS) { - *out_count = 0; - return NULL; - } - - private->width = *width; - private->height = *height; - - /* This assumes the DRI2 buffer attachment tokens matches the - * __DRIbuffer tokens. */ - for (i = 0; i < *out_count; i++) { - /* Do not send the real front buffer of a window to the client. - */ - if ((private->base.pDraw->type == DRAWABLE_WINDOW) - && (buffers[i]->attachment == DRI2BufferFrontLeft)) { - continue; - } - - private->buffers[j].attachment = buffers[i]->attachment; - private->buffers[j].name = buffers[i]->name; - private->buffers[j].pitch = buffers[i]->pitch; - private->buffers[j].cpp = buffers[i]->cpp; - private->buffers[j].flags = buffers[i]->flags; - j++; - } - - *out_count = j; - return private->buffers; -} - -static void -dri2FlushFrontBuffer(__DRIdrawable *driDrawable, void *loaderPrivate) -{ - (void) driDrawable; - __glXDRIdrawableWaitGL((__GLXdrawable *) loaderPrivate); -} - -static const __DRIdri2LoaderExtension loaderExtension = { - { __DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION }, - dri2GetBuffers, - dri2FlushFrontBuffer, - dri2GetBuffersWithFormat, -}; - -#ifdef __DRI_USE_INVALIDATE -static const __DRIuseInvalidateExtension dri2UseInvalidate = { - { __DRI_USE_INVALIDATE, __DRI_USE_INVALIDATE_VERSION } -}; -#endif - -static const __DRIextension *loader_extensions[] = { - &systemTimeExtension.base, - &loaderExtension.base, -#ifdef __DRI_USE_INVALIDATE - &dri2UseInvalidate.base, -#endif - NULL -}; - -static Bool -glxDRIEnterVT (int index, int flags) -{ - ScrnInfoPtr scrn = xf86Screens[index]; - Bool ret; - __GLXDRIscreen *screen = (__GLXDRIscreen *) - glxGetScreen(screenInfo.screens[index]); - - LogMessage(X_INFO, "AIGLX: Resuming AIGLX clients after VT switch\n"); - - scrn->EnterVT = screen->enterVT; - - ret = scrn->EnterVT (index, flags); - - screen->enterVT = scrn->EnterVT; - scrn->EnterVT = glxDRIEnterVT; - - if (!ret) - return FALSE; - - glxResumeClients(); - - return TRUE; -} - -static void -glxDRILeaveVT (int index, int flags) -{ - ScrnInfoPtr scrn = xf86Screens[index]; - __GLXDRIscreen *screen = (__GLXDRIscreen *) - glxGetScreen(screenInfo.screens[index]); - - LogMessage(X_INFO, "AIGLX: Suspending AIGLX clients for VT switch\n"); - - glxSuspendClients(); - - scrn->LeaveVT = screen->leaveVT; - (*screen->leaveVT) (index, flags); - screen->leaveVT = scrn->LeaveVT; - scrn->LeaveVT = glxDRILeaveVT; -} - -static void -initializeExtensions(__GLXDRIscreen *screen) -{ - ScreenPtr pScreen = screen->base.pScreen; - const __DRIextension **extensions; - int i; - - extensions = screen->core->getExtensions(screen->driScreen); - - __glXEnableExtension(screen->glx_enable_bits, - "GLX_MESA_copy_sub_buffer"); - LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n"); - - __glXEnableExtension(screen->glx_enable_bits, "GLX_INTEL_swap_event"); - LogMessage(X_INFO, "AIGLX: enabled GLX_INTEL_swap_event\n"); - - if (DRI2HasSwapControl(pScreen)) { - __glXEnableExtension(screen->glx_enable_bits, - "GLX_SGI_swap_control"); - __glXEnableExtension(screen->glx_enable_bits, - "GLX_MESA_swap_control"); - LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n"); - } - - for (i = 0; extensions[i]; i++) { -#ifdef __DRI_READ_DRAWABLE - if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) { - __glXEnableExtension(screen->glx_enable_bits, - "GLX_SGI_make_current_read"); - - LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n"); - } -#endif - -#ifdef __DRI_TEX_BUFFER - if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) { - screen->texBuffer = - (const __DRItexBufferExtension *) extensions[i]; - /* GLX_EXT_texture_from_pixmap is always enabled. */ - LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n"); - } -#endif - -#ifdef __DRI2_FLUSH - if (strcmp(extensions[i]->name, __DRI2_FLUSH) == 0 && - extensions[i]->version >= 3) { - screen->flush = (__DRI2flushExtension *) extensions[i]; - } -#endif - - /* Ignore unknown extensions */ - } -} - -static __GLXscreen * -__glXDRIscreenProbe(ScreenPtr pScreen) -{ - const char *driverName, *deviceName; - __GLXDRIscreen *screen; - size_t buffer_size; - ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; - const __DRIconfig **driConfigs; - - screen = calloc(1, sizeof *screen); - if (screen == NULL) - return NULL; - - if (!xf86LoaderCheckSymbol("DRI2Connect") || - !DRI2Connect(pScreen, DRI2DriverDRI, - &screen->fd, &driverName, &deviceName)) { - LogMessage(X_INFO, - "AIGLX: Screen %d is not DRI2 capable\n", pScreen->myNum); - return NULL; - } - - screen->base.destroy = __glXDRIscreenDestroy; - screen->base.createContext = __glXDRIscreenCreateContext; - screen->base.createDrawable = __glXDRIscreenCreateDrawable; - screen->base.swapInterval = __glXDRIdrawableSwapInterval; - screen->base.pScreen = pScreen; - - __glXInitExtensionEnableBits(screen->glx_enable_bits); - - screen->driver = glxProbeDriver(driverName, (void **)&screen->core, __DRI_CORE, 1, - (void **)&screen->dri2, __DRI_DRI2, 1); - if (screen->driver == NULL) { - goto handle_error; - } - - screen->driScreen = - (*screen->dri2->createNewScreen)(pScreen->myNum, - screen->fd, - loader_extensions, - &driConfigs, - screen); - - if (screen->driScreen == NULL) { - LogMessage(X_ERROR, - "AIGLX error: Calling driver entry point failed\n"); - goto handle_error; - } - - initializeExtensions(screen); - - screen->base.fbconfigs = glxConvertConfigs(screen->core, driConfigs, - GLX_WINDOW_BIT | - GLX_PIXMAP_BIT | - GLX_PBUFFER_BIT); - - __glXScreenInit(&screen->base, pScreen); - - /* The first call simply determines the length of the extension string. - * This allows us to allocate some memory to hold the extension string, - * but it requires that we call __glXGetExtensionString a second time. - */ - buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL); - if (buffer_size > 0) { - free(screen->base.GLXextensions); - - screen->base.GLXextensions = xnfalloc(buffer_size); - (void) __glXGetExtensionString(screen->glx_enable_bits, - screen->base.GLXextensions); - } - - /* We're going to assume (perhaps incorrectly?) that all DRI2-enabled - * drivers support the required extensions for GLX 1.4. The extensions - * we're assuming are: - * - * - GLX_SGI_make_current_read (1.3) - * - GLX_SGIX_fbconfig (1.3) - * - GLX_SGIX_pbuffer (1.3) - * - GLX_ARB_multisample (1.4) - */ - screen->base.GLXmajor = 1; - screen->base.GLXminor = 4; - - screen->enterVT = pScrn->EnterVT; - pScrn->EnterVT = glxDRIEnterVT; - screen->leaveVT = pScrn->LeaveVT; - pScrn->LeaveVT = glxDRILeaveVT; - - LogMessage(X_INFO, - "AIGLX: Loaded and initialized %s\n", driverName); - - return &screen->base; - - handle_error: - if (screen->driver) - dlclose(screen->driver); - - free(screen); - - LogMessage(X_ERROR, "AIGLX: reverting to software rendering\n"); - - return NULL; -} - -_X_EXPORT __GLXprovider __glXDRI2Provider = { - __glXDRIscreenProbe, - "DRI2", - NULL -}; +/* + * Copyright © 2007 Red Hat, Inc + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of Red Hat, + * Inc not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN + * NO EVENT SHALL RED HAT, INC BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS + * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#define _XF86DRI_SERVER_ +#include +#include +#include + +#include "glxserver.h" +#include "glxutil.h" +#include "glxdricommon.h" + +#include "glapitable.h" +#include "glapi.h" +#include "glthread.h" +#include "dispatch.h" +#include "extension_string.h" + +typedef struct __GLXDRIscreen __GLXDRIscreen; +typedef struct __GLXDRIcontext __GLXDRIcontext; +typedef struct __GLXDRIdrawable __GLXDRIdrawable; + +struct __GLXDRIscreen { + __GLXscreen base; + __DRIscreen *driScreen; + void *driver; + int fd; + + xf86EnterVTProc *enterVT; + xf86LeaveVTProc *leaveVT; + + const __DRIcoreExtension *core; + const __DRIdri2Extension *dri2; + const __DRI2flushExtension *flush; + const __DRIcopySubBufferExtension *copySubBuffer; + const __DRIswapControlExtension *swapControl; + const __DRItexBufferExtension *texBuffer; + + unsigned char glx_enable_bits[__GLX_EXT_BYTES]; +}; + +struct __GLXDRIcontext { + __GLXcontext base; + __DRIcontext *driContext; +}; + +#define MAX_DRAWABLE_BUFFERS 5 + +struct __GLXDRIdrawable { + __GLXdrawable base; + __DRIdrawable *driDrawable; + __GLXDRIscreen *screen; + + /* Dimensions as last reported by DRI2GetBuffers. */ + int width; + int height; + __DRIbuffer buffers[MAX_DRAWABLE_BUFFERS]; + int count; +}; + +static void +__glXDRIdrawableDestroy(__GLXdrawable *drawable) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + const __DRIcoreExtension *core = private->screen->core; + + (*core->destroyDrawable)(private->driDrawable); + + __glXDrawableRelease(drawable); + + free(private); +} + +static void +__glXDRIdrawableCopySubBuffer(__GLXdrawable *drawable, + int x, int y, int w, int h) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + BoxRec box; + RegionRec region; + + box.x1 = x; + box.y1 = private->height - y - h; + box.x2 = x + w; + box.y2 = private->height - y; + RegionInit(®ion, &box, 0); + + DRI2CopyRegion(drawable->pDraw, ®ion, + DRI2BufferFrontLeft, DRI2BufferBackLeft); +} + +static void +__glXDRIdrawableWaitX(__GLXdrawable *drawable) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = private->width; + box.y2 = private->height; + RegionInit(®ion, &box, 0); + + DRI2CopyRegion(drawable->pDraw, ®ion, + DRI2BufferFakeFrontLeft, DRI2BufferFrontLeft); +} + +static void +__glXDRIdrawableWaitGL(__GLXdrawable *drawable) +{ + __GLXDRIdrawable *private = (__GLXDRIdrawable *) drawable; + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = private->width; + box.y2 = private->height; + RegionInit(®ion, &box, 0); + + DRI2CopyRegion(drawable->pDraw, ®ion, + DRI2BufferFrontLeft, DRI2BufferFakeFrontLeft); +} + +static void +__glXdriSwapEvent(ClientPtr client, void *data, int type, CARD64 ust, + CARD64 msc, CARD64 sbc) +{ + __GLXdrawable *drawable = data; + xGLXBufferSwapComplete wire; + + if (!(drawable->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK)) + return; + + wire.type = __glXEventBase + GLX_BufferSwapComplete; + switch (type) { + case DRI2_EXCHANGE_COMPLETE: + wire.event_type = GLX_EXCHANGE_COMPLETE_INTEL; + break; + case DRI2_BLIT_COMPLETE: + wire.event_type = GLX_BLIT_COMPLETE_INTEL; + break; + case DRI2_FLIP_COMPLETE: + wire.event_type = GLX_FLIP_COMPLETE_INTEL; + break; + default: + /* unknown swap completion type */ + wire.event_type = 0; + break; + } + wire.drawable = drawable->drawId; + wire.ust_hi = ust >> 32; + wire.ust_lo = ust & 0xffffffff; + wire.msc_hi = msc >> 32; + wire.msc_lo = msc & 0xffffffff; + wire.sbc_hi = sbc >> 32; + wire.sbc_lo = sbc & 0xffffffff; + + WriteEventsToClient(client, 1, (xEvent *) &wire); +} + +/* + * Copy or flip back to front, honoring the swap interval if possible. + * + * If the kernel supports it, we request an event for the frame when the + * swap should happen, then perform the copy when we receive it. + */ +static GLboolean +__glXDRIdrawableSwapBuffers(ClientPtr client, __GLXdrawable *drawable) +{ + __GLXDRIdrawable *priv = (__GLXDRIdrawable *) drawable; + __GLXDRIscreen *screen = priv->screen; + CARD64 unused; + +#if __DRI2_FLUSH_VERSION >= 3 + if (screen->flush) { + (*screen->flush->flush)(priv->driDrawable); + (*screen->flush->invalidate)(priv->driDrawable); + } +#else + if (screen->flush) + (*screen->flush->flushInvalidate)(priv->driDrawable); +#endif + + if (DRI2SwapBuffers(client, drawable->pDraw, 0, 0, 0, &unused, + __glXdriSwapEvent, drawable->pDraw) != Success) + return FALSE; + + return TRUE; +} + +static int +__glXDRIdrawableSwapInterval(__GLXdrawable *drawable, int interval) +{ + if (interval <= 0) /* || interval > BIGNUM? */ + return GLX_BAD_VALUE; + + DRI2SwapInterval(drawable->pDraw, interval); + + return 0; +} + +static void +__glXDRIcontextDestroy(__GLXcontext *baseContext) +{ + __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; + __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; + + (*screen->core->destroyContext)(context->driContext); + __glXContextDestroy(&context->base); + free(context); +} + +static int +__glXDRIcontextMakeCurrent(__GLXcontext *baseContext) +{ + __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; + __GLXDRIdrawable *draw = (__GLXDRIdrawable *) baseContext->drawPriv; + __GLXDRIdrawable *read = (__GLXDRIdrawable *) baseContext->readPriv; + __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; + + return (*screen->core->bindContext)(context->driContext, + draw->driDrawable, + read->driDrawable); +} + +static int +__glXDRIcontextLoseCurrent(__GLXcontext *baseContext) +{ + __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; + __GLXDRIscreen *screen = (__GLXDRIscreen *) context->base.pGlxScreen; + + return (*screen->core->unbindContext)(context->driContext); +} + +static int +__glXDRIcontextCopy(__GLXcontext *baseDst, __GLXcontext *baseSrc, + unsigned long mask) +{ + __GLXDRIcontext *dst = (__GLXDRIcontext *) baseDst; + __GLXDRIcontext *src = (__GLXDRIcontext *) baseSrc; + __GLXDRIscreen *screen = (__GLXDRIscreen *) dst->base.pGlxScreen; + + return (*screen->core->copyContext)(dst->driContext, + src->driContext, mask); +} + +static Bool +__glXDRIcontextWait(__GLXcontext *baseContext, + __GLXclientState *cl, int *error) +{ + if (DRI2WaitSwap(cl->client, baseContext->drawPriv->pDraw)) { + *error = cl->client->noClientException; + return TRUE; + } + + return FALSE; +} + +#ifdef __DRI_TEX_BUFFER + +static int +__glXDRIbindTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *glxPixmap) +{ + __GLXDRIdrawable *drawable = (__GLXDRIdrawable *) glxPixmap; + const __DRItexBufferExtension *texBuffer = drawable->screen->texBuffer; + __GLXDRIcontext *context = (__GLXDRIcontext *) baseContext; + + if (texBuffer == NULL) + return Success; + +#if __DRI_TEX_BUFFER_VERSION >= 2 + if (texBuffer->base.version >= 2 && texBuffer->setTexBuffer2 != NULL) { + (*texBuffer->setTexBuffer2)(context->driContext, + glxPixmap->target, + glxPixmap->format, + drawable->driDrawable); + } else +#endif + { + texBuffer->setTexBuffer(context->driContext, + glxPixmap->target, + drawable->driDrawable); + } + + return Success; +} + +static int +__glXDRIreleaseTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *pixmap) +{ + /* FIXME: Just unbind the texture? */ + return Success; +} + +#else + +static int +__glXDRIbindTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *glxPixmap) +{ + return Success; +} + +static int +__glXDRIreleaseTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *pixmap) +{ + return Success; +} + +#endif + +static __GLXtextureFromPixmap __glXDRItextureFromPixmap = { + __glXDRIbindTexImage, + __glXDRIreleaseTexImage +}; + +static void +__glXDRIscreenDestroy(__GLXscreen *baseScreen) +{ + __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen; + + (*screen->core->destroyScreen)(screen->driScreen); + + dlclose(screen->driver); + + __glXScreenDestroy(baseScreen); + + free(screen); +} + +static __GLXcontext * +__glXDRIscreenCreateContext(__GLXscreen *baseScreen, + __GLXconfig *glxConfig, + __GLXcontext *baseShareContext) +{ + __GLXDRIscreen *screen = (__GLXDRIscreen *) baseScreen; + __GLXDRIcontext *context, *shareContext; + __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig; + __DRIcontext *driShare; + + shareContext = (__GLXDRIcontext *) baseShareContext; + if (shareContext) + driShare = shareContext->driContext; + else + driShare = NULL; + + context = calloc(1, sizeof *context); + if (context == NULL) + return NULL; + + context->base.destroy = __glXDRIcontextDestroy; + context->base.makeCurrent = __glXDRIcontextMakeCurrent; + context->base.loseCurrent = __glXDRIcontextLoseCurrent; + context->base.copy = __glXDRIcontextCopy; + context->base.textureFromPixmap = &__glXDRItextureFromPixmap; + context->base.wait = __glXDRIcontextWait; + + context->driContext = + (*screen->dri2->createNewContext)(screen->driScreen, + config->driConfig, + driShare, context); + if (context->driContext == NULL) { + free(context); + return NULL; + } + + return &context->base; +} + +static void +__glXDRIinvalidateBuffers(DrawablePtr pDraw, void *priv) +{ +#if __DRI2_FLUSH_VERSION >= 3 + __GLXDRIdrawable *private = priv; + __GLXDRIscreen *screen = private->screen; + + if (screen->flush) + (*screen->flush->invalidate)(private->driDrawable); +#endif +} + +static __GLXdrawable * +__glXDRIscreenCreateDrawable(ClientPtr client, + __GLXscreen *screen, + DrawablePtr pDraw, + XID drawId, + int type, + XID glxDrawId, + __GLXconfig *glxConfig) +{ + __GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen; + __GLXDRIconfig *config = (__GLXDRIconfig *) glxConfig; + __GLXDRIdrawable *private; + + private = calloc(1, sizeof *private); + if (private == NULL) + return NULL; + + private->screen = driScreen; + if (!__glXDrawableInit(&private->base, screen, + pDraw, type, glxDrawId, glxConfig)) { + free(private); + return NULL; + } + + private->base.destroy = __glXDRIdrawableDestroy; + private->base.swapBuffers = __glXDRIdrawableSwapBuffers; + private->base.copySubBuffer = __glXDRIdrawableCopySubBuffer; + private->base.waitGL = __glXDRIdrawableWaitGL; + private->base.waitX = __glXDRIdrawableWaitX; + + if (DRI2CreateDrawable(client, pDraw, drawId, + __glXDRIinvalidateBuffers, private)) { + free(private); + return NULL; + } + + private->driDrawable = + (*driScreen->dri2->createNewDrawable)(driScreen->driScreen, + config->driConfig, private); + + return &private->base; +} + +static __DRIbuffer * +dri2GetBuffers(__DRIdrawable *driDrawable, + int *width, int *height, + unsigned int *attachments, int count, + int *out_count, void *loaderPrivate) +{ + __GLXDRIdrawable *private = loaderPrivate; + DRI2BufferPtr *buffers; + int i; + int j; + + buffers = DRI2GetBuffers(private->base.pDraw, + width, height, attachments, count, out_count); + if (*out_count > MAX_DRAWABLE_BUFFERS) { + *out_count = 0; + return NULL; + } + + private->width = *width; + private->height = *height; + + /* This assumes the DRI2 buffer attachment tokens matches the + * __DRIbuffer tokens. */ + j = 0; + for (i = 0; i < *out_count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if ((private->base.pDraw->type == DRAWABLE_WINDOW) + && (buffers[i]->attachment == DRI2BufferFrontLeft)) { + continue; + } + + private->buffers[j].attachment = buffers[i]->attachment; + private->buffers[j].name = buffers[i]->name; + private->buffers[j].pitch = buffers[i]->pitch; + private->buffers[j].cpp = buffers[i]->cpp; + private->buffers[j].flags = buffers[i]->flags; + j++; + } + + *out_count = j; + return private->buffers; +} + +static __DRIbuffer * +dri2GetBuffersWithFormat(__DRIdrawable *driDrawable, + int *width, int *height, + unsigned int *attachments, int count, + int *out_count, void *loaderPrivate) +{ + __GLXDRIdrawable *private = loaderPrivate; + DRI2BufferPtr *buffers; + int i; + int j = 0; + + buffers = DRI2GetBuffersWithFormat(private->base.pDraw, + width, height, attachments, count, + out_count); + if (*out_count > MAX_DRAWABLE_BUFFERS) { + *out_count = 0; + return NULL; + } + + private->width = *width; + private->height = *height; + + /* This assumes the DRI2 buffer attachment tokens matches the + * __DRIbuffer tokens. */ + for (i = 0; i < *out_count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if ((private->base.pDraw->type == DRAWABLE_WINDOW) + && (buffers[i]->attachment == DRI2BufferFrontLeft)) { + continue; + } + + private->buffers[j].attachment = buffers[i]->attachment; + private->buffers[j].name = buffers[i]->name; + private->buffers[j].pitch = buffers[i]->pitch; + private->buffers[j].cpp = buffers[i]->cpp; + private->buffers[j].flags = buffers[i]->flags; + j++; + } + + *out_count = j; + return private->buffers; +} + +static void +dri2FlushFrontBuffer(__DRIdrawable *driDrawable, void *loaderPrivate) +{ + (void) driDrawable; + __glXDRIdrawableWaitGL((__GLXdrawable *) loaderPrivate); +} + +static const __DRIdri2LoaderExtension loaderExtension = { + { __DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION }, + dri2GetBuffers, + dri2FlushFrontBuffer, + dri2GetBuffersWithFormat, +}; + +#ifdef __DRI_USE_INVALIDATE +static const __DRIuseInvalidateExtension dri2UseInvalidate = { + { __DRI_USE_INVALIDATE, __DRI_USE_INVALIDATE_VERSION } +}; +#endif + +static const __DRIextension *loader_extensions[] = { + &systemTimeExtension.base, + &loaderExtension.base, +#ifdef __DRI_USE_INVALIDATE + &dri2UseInvalidate.base, +#endif + NULL +}; + +static Bool +glxDRIEnterVT (int index, int flags) +{ + ScrnInfoPtr scrn = xf86Screens[index]; + Bool ret; + __GLXDRIscreen *screen = (__GLXDRIscreen *) + glxGetScreen(screenInfo.screens[index]); + + LogMessage(X_INFO, "AIGLX: Resuming AIGLX clients after VT switch\n"); + + scrn->EnterVT = screen->enterVT; + + ret = scrn->EnterVT (index, flags); + + screen->enterVT = scrn->EnterVT; + scrn->EnterVT = glxDRIEnterVT; + + if (!ret) + return FALSE; + + glxResumeClients(); + + return TRUE; +} + +static void +glxDRILeaveVT (int index, int flags) +{ + ScrnInfoPtr scrn = xf86Screens[index]; + __GLXDRIscreen *screen = (__GLXDRIscreen *) + glxGetScreen(screenInfo.screens[index]); + + LogMessage(X_INFO, "AIGLX: Suspending AIGLX clients for VT switch\n"); + + glxSuspendClients(); + + scrn->LeaveVT = screen->leaveVT; + (*screen->leaveVT) (index, flags); + screen->leaveVT = scrn->LeaveVT; + scrn->LeaveVT = glxDRILeaveVT; +} + +static void +initializeExtensions(__GLXDRIscreen *screen) +{ + ScreenPtr pScreen = screen->base.pScreen; + const __DRIextension **extensions; + int i; + + extensions = screen->core->getExtensions(screen->driScreen); + + __glXEnableExtension(screen->glx_enable_bits, + "GLX_MESA_copy_sub_buffer"); + LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n"); + + __glXEnableExtension(screen->glx_enable_bits, "GLX_INTEL_swap_event"); + LogMessage(X_INFO, "AIGLX: enabled GLX_INTEL_swap_event\n"); + + if (DRI2HasSwapControl(pScreen)) { + __glXEnableExtension(screen->glx_enable_bits, + "GLX_SGI_swap_control"); + __glXEnableExtension(screen->glx_enable_bits, + "GLX_MESA_swap_control"); + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n"); + } + + for (i = 0; extensions[i]; i++) { +#ifdef __DRI_READ_DRAWABLE + if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) { + __glXEnableExtension(screen->glx_enable_bits, + "GLX_SGI_make_current_read"); + + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n"); + } +#endif + +#ifdef __DRI_TEX_BUFFER + if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) { + screen->texBuffer = + (const __DRItexBufferExtension *) extensions[i]; + /* GLX_EXT_texture_from_pixmap is always enabled. */ + LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n"); + } +#endif + +#ifdef __DRI2_FLUSH + if (strcmp(extensions[i]->name, __DRI2_FLUSH) == 0 && + extensions[i]->version >= 3) { + screen->flush = (__DRI2flushExtension *) extensions[i]; + } +#endif + + /* Ignore unknown extensions */ + } +} + +static __GLXscreen * +__glXDRIscreenProbe(ScreenPtr pScreen) +{ + const char *driverName, *deviceName; + __GLXDRIscreen *screen; + size_t buffer_size; + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + const __DRIconfig **driConfigs; + + screen = calloc(1, sizeof *screen); + if (screen == NULL) + return NULL; + + if (!xf86LoaderCheckSymbol("DRI2Connect") || + !DRI2Connect(pScreen, DRI2DriverDRI, + &screen->fd, &driverName, &deviceName)) { + LogMessage(X_INFO, + "AIGLX: Screen %d is not DRI2 capable\n", pScreen->myNum); + return NULL; + } + + screen->base.destroy = __glXDRIscreenDestroy; + screen->base.createContext = __glXDRIscreenCreateContext; + screen->base.createDrawable = __glXDRIscreenCreateDrawable; + screen->base.swapInterval = __glXDRIdrawableSwapInterval; + screen->base.pScreen = pScreen; + + __glXInitExtensionEnableBits(screen->glx_enable_bits); + + screen->driver = glxProbeDriver(driverName, (void **)&screen->core, __DRI_CORE, 1, + (void **)&screen->dri2, __DRI_DRI2, 1); + if (screen->driver == NULL) { + goto handle_error; + } + + screen->driScreen = + (*screen->dri2->createNewScreen)(pScreen->myNum, + screen->fd, + loader_extensions, + &driConfigs, + screen); + + if (screen->driScreen == NULL) { + LogMessage(X_ERROR, + "AIGLX error: Calling driver entry point failed\n"); + goto handle_error; + } + + initializeExtensions(screen); + + screen->base.fbconfigs = glxConvertConfigs(screen->core, driConfigs, + GLX_WINDOW_BIT | + GLX_PIXMAP_BIT | + GLX_PBUFFER_BIT); + + __glXScreenInit(&screen->base, pScreen); + + /* The first call simply determines the length of the extension string. + * This allows us to allocate some memory to hold the extension string, + * but it requires that we call __glXGetExtensionString a second time. + */ + buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL); + if (buffer_size > 0) { + free(screen->base.GLXextensions); + + screen->base.GLXextensions = xnfalloc(buffer_size); + (void) __glXGetExtensionString(screen->glx_enable_bits, + screen->base.GLXextensions); + } + + /* We're going to assume (perhaps incorrectly?) that all DRI2-enabled + * drivers support the required extensions for GLX 1.4. The extensions + * we're assuming are: + * + * - GLX_SGI_make_current_read (1.3) + * - GLX_SGIX_fbconfig (1.3) + * - GLX_SGIX_pbuffer (1.3) + * - GLX_ARB_multisample (1.4) + */ + screen->base.GLXmajor = 1; + screen->base.GLXminor = 4; + + screen->enterVT = pScrn->EnterVT; + pScrn->EnterVT = glxDRIEnterVT; + screen->leaveVT = pScrn->LeaveVT; + pScrn->LeaveVT = glxDRILeaveVT; + + LogMessage(X_INFO, + "AIGLX: Loaded and initialized %s\n", driverName); + + return &screen->base; + + handle_error: + if (screen->driver) + dlclose(screen->driver); + + free(screen); + + LogMessage(X_ERROR, "AIGLX: reverting to software rendering\n"); + + return NULL; +} + +_X_EXPORT __GLXprovider __glXDRI2Provider = { + __glXDRIscreenProbe, + "DRI2", + NULL +}; diff --git a/xorg-server/glx/glxext.c b/xorg-server/glx/glxext.c index 054ece76d..9cfc096c3 100644 --- a/xorg-server/glx/glxext.c +++ b/xorg-server/glx/glxext.c @@ -1,552 +1,556 @@ -/* - * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) - * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice including the dates of first publication and - * either this permission notice or a reference to - * http://oss.sgi.com/projects/FreeB/ - * shall be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF - * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - * Except as contained in this notice, the name of Silicon Graphics, Inc. - * shall not be used in advertising or otherwise to promote the sale, use or - * other dealings in this Software without prior written authorization from - * Silicon Graphics, Inc. - */ - -#ifdef HAVE_DIX_CONFIG_H -#include -#endif - -#include -#include "glxserver.h" -#include -#include -#include -#include "privates.h" -#include -#include "unpack.h" -#include "glxutil.h" -#include "glxext.h" -#include "indirect_table.h" -#include "indirect_util.h" - -/* -** The last context used by the server. It is the context that is current -** from the server's perspective. -*/ -__GLXcontext *__glXLastContext; - -/* -** X resources. -*/ -RESTYPE __glXContextRes; -RESTYPE __glXDrawableRes; - -/* -** Reply for most singles. -*/ -xGLXSingleReply __glXReply; - -static DevPrivateKeyRec glxClientPrivateKeyRec; -#define glxClientPrivateKey (&glxClientPrivateKeyRec) - -/* -** Forward declarations. -*/ -static int __glXDispatch(ClientPtr); - -/* -** Called when the extension is reset. -*/ -static void ResetExtension(ExtensionEntry* extEntry) -{ - __glXFlushContextCache(); -} - -/* -** Reset state used to keep track of large (multi-request) commands. -*/ -void __glXResetLargeCommandStatus(__GLXclientState *cl) -{ - cl->largeCmdBytesSoFar = 0; - cl->largeCmdBytesTotal = 0; - cl->largeCmdRequestsSoFar = 0; - cl->largeCmdRequestsTotal = 0; -} - -/* -** This procedure is called when the client who created the context goes -** away OR when glXDestroyContext is called. In either case, all we do is -** flag that the ID is no longer valid, and (maybe) free the context. -** use. -*/ -static int ContextGone(__GLXcontext* cx, XID id) -{ - cx->idExists = GL_FALSE; - if (!cx->isCurrent) { - __glXFreeContext(cx); - } - - return True; -} - -static __GLXcontext *glxPendingDestroyContexts; -static __GLXcontext *glxAllContexts; -static int glxServerLeaveCount; -static int glxBlockClients; - -/* -** Destroy routine that gets called when a drawable is freed. A drawable -** contains the ancillary buffers needed for rendering. -*/ -static Bool DrawableGone(__GLXdrawable *glxPriv, XID xid) -{ - __GLXcontext *c, *next; - - /* If this drawable was created using glx 1.3 drawable - * constructors, we added it as a glx drawable resource under both - * its glx drawable ID and it X drawable ID. Remove the other - * resource now so we don't a callback for freed memory. */ - if (glxPriv->drawId != glxPriv->pDraw->id) { - if (xid == glxPriv->drawId) - FreeResourceByType(glxPriv->pDraw->id, __glXDrawableRes, TRUE); - else - FreeResourceByType(glxPriv->drawId, __glXDrawableRes, TRUE); - } - - for (c = glxAllContexts; c; c = next) { - next = c->next; - if (c->isCurrent && (c->drawPriv == glxPriv || c->readPriv == glxPriv)) { - (*c->loseCurrent)(c); - c->isCurrent = GL_FALSE; - if (c == __glXLastContext) - __glXFlushContextCache(); - } - if (c->drawPriv == glxPriv) - c->drawPriv = NULL; - if (c->readPriv == glxPriv) - c->readPriv = NULL; - } - - glxPriv->destroy(glxPriv); - - return True; -} - -void __glXAddToContextList(__GLXcontext *cx) -{ - cx->next = glxAllContexts; - glxAllContexts = cx; -} - -static void __glXRemoveFromContextList(__GLXcontext *cx) -{ - __GLXcontext *c, *prev; - - if (cx == glxAllContexts) - glxAllContexts = cx->next; - else { - prev = glxAllContexts; - for (c = glxAllContexts; c; c = c->next) { - if (c == cx) - prev->next = c->next; - prev = c; - } - } -} - -/* -** Free a context. -*/ -GLboolean __glXFreeContext(__GLXcontext *cx) -{ - if (cx->idExists || cx->isCurrent) return GL_FALSE; - - free(cx->feedbackBuf); - free(cx->selectBuf); - if (cx == __glXLastContext) { - __glXFlushContextCache(); - } - - __glXRemoveFromContextList(cx); - - /* We can get here through both regular dispatching from - * __glXDispatch() or as a callback from the resource manager. In - * the latter case we need to lift the DRI lock manually. */ - - if (!glxBlockClients) { - __glXleaveServer(GL_FALSE); - cx->destroy(cx); - __glXenterServer(GL_FALSE); - } else { - cx->next = glxPendingDestroyContexts; - glxPendingDestroyContexts = cx; - } - - return GL_TRUE; -} - -/************************************************************************/ - -/* -** These routines can be used to check whether a particular GL command -** has caused an error. Specifically, we use them to check whether a -** given query has caused an error, in which case a zero-length data -** reply is sent to the client. -*/ - -static GLboolean errorOccured = GL_FALSE; - -/* -** The GL was will call this routine if an error occurs. -*/ -void __glXErrorCallBack(GLenum code) -{ - errorOccured = GL_TRUE; -} - -/* -** Clear the error flag before calling the GL command. -*/ -void __glXClearErrorOccured(void) -{ - errorOccured = GL_FALSE; -} - -/* -** Check if the GL command caused an error. -*/ -GLboolean __glXErrorOccured(void) -{ - return errorOccured; -} - -static int __glXErrorBase; -int __glXEventBase; - -int __glXError(int error) -{ - return __glXErrorBase + error; -} - -__GLXclientState * -glxGetClient(ClientPtr pClient) -{ - return dixLookupPrivate(&pClient->devPrivates, glxClientPrivateKey); -} - -static void -glxClientCallback (CallbackListPtr *list, - pointer closure, - pointer data) -{ - NewClientInfoRec *clientinfo = (NewClientInfoRec *) data; - ClientPtr pClient = clientinfo->client; - __GLXclientState *cl = glxGetClient(pClient); - - switch (pClient->clientState) { - case ClientStateRunning: - /* - ** By default, assume that the client supports - ** GLX major version 1 minor version 0 protocol. - */ - cl->GLClientmajorVersion = 1; - cl->GLClientminorVersion = 0; - cl->client = pClient; - break; - - case ClientStateGone: - free(cl->returnBuf); - free(cl->largeCmdBuf); - free(cl->GLClientextensions); - break; - - default: - break; - } -} - -/************************************************************************/ - -static __GLXprovider *__glXProviderStack; - -void GlxPushProvider(__GLXprovider *provider) -{ - provider->next = __glXProviderStack; - __glXProviderStack = provider; -} - -/* -** Initialize the GLX extension. -*/ -void GlxExtensionInit(void) -{ - ExtensionEntry *extEntry; - ScreenPtr pScreen; - int i; - __GLXprovider *p; - Bool glx_provided = False; - - __glXContextRes = CreateNewResourceType((DeleteType)ContextGone, - "GLXContext"); - __glXDrawableRes = CreateNewResourceType((DeleteType)DrawableGone, - "GLXDrawable"); - if (!__glXContextRes || !__glXDrawableRes) - return; - - if (!dixRegisterPrivateKey(&glxClientPrivateKeyRec, PRIVATE_CLIENT, sizeof (__GLXclientState))) - return; - if (!AddCallback (&ClientStateCallback, glxClientCallback, 0)) - return; - - for (i = 0; i < screenInfo.numScreens; i++) { - pScreen = screenInfo.screens[i]; - - for (p = __glXProviderStack; p != NULL; p = p->next) { - __GLXscreen *glxScreen; - - glxScreen = p->screenProbe(pScreen); - if (glxScreen != NULL) { - if (glxScreen->GLXminor < glxMinorVersion) - glxMinorVersion = glxScreen->GLXminor; - LogMessage(X_INFO, - "GLX: Initialized %s GL provider for screen %d\n", - p->name, i); - break; - } - - } - - if (!p) - LogMessage(X_INFO, - "GLX: no usable GL providers found for screen %d\n", i); - else - glx_provided = True; - } - - /* don't register extension if GL is not provided on any screen */ - if (!glx_provided) - return; - - /* - ** Add extension to server extensions. - */ - extEntry = AddExtension(GLX_EXTENSION_NAME, __GLX_NUMBER_EVENTS, - __GLX_NUMBER_ERRORS, __glXDispatch, - __glXDispatch, ResetExtension, - StandardMinorOpcode); - if (!extEntry) { - FatalError("__glXExtensionInit: AddExtensions failed\n"); - return; - } - if (!AddExtensionAlias(GLX_EXTENSION_ALIAS, extEntry)) { - ErrorF("__glXExtensionInit: AddExtensionAlias failed\n"); - return; - } - - __glXErrorBase = extEntry->errorBase; - __glXEventBase = extEntry->eventBase; -} - -/************************************************************************/ - -void __glXFlushContextCache(void) -{ - __glXLastContext = 0; -} - -/* -** Make a context the current one for the GL (in this implementation, there -** is only one instance of the GL, and we use it to serve all GL clients by -** switching it between different contexts). While we are at it, look up -** a context by its tag and return its (__GLXcontext *). -*/ -__GLXcontext *__glXForceCurrent(__GLXclientState *cl, GLXContextTag tag, - int *error) -{ - __GLXcontext *cx; - - /* - ** See if the context tag is legal; it is managed by the extension, - ** so if it's invalid, we have an implementation error. - */ - cx = __glXLookupContextByTag(cl, tag); - if (!cx) { - cl->client->errorValue = tag; - *error = __glXError(GLXBadContextTag); - return 0; - } - - if (!cx->isDirect) { - if (cx->drawPriv == NULL) { - /* - ** The drawable has vanished. It must be a window, because only - ** windows can be destroyed from under us; GLX pixmaps are - ** refcounted and don't go away until no one is using them. - */ - *error = __glXError(GLXBadCurrentWindow); - return 0; - } - } - - if (cx->wait && (*cx->wait)(cx, cl, error)) - return NULL; - - if (cx == __glXLastContext) { - /* No need to re-bind */ - return cx; - } - - /* Make this context the current one for the GL. */ - if (!cx->isDirect) { - if (!(*cx->makeCurrent)(cx)) { - /* Bind failed, and set the error code. Bummer */ - cl->client->errorValue = cx->id; - *error = __glXError(GLXBadContextState); - return 0; - } - } - __glXLastContext = cx; - return cx; -} - -/************************************************************************/ - -void glxSuspendClients(void) -{ - int i; - - for (i = 1; i < currentMaxClients; i++) { - if (clients[i] && glxGetClient(clients[i])->inUse) - IgnoreClient(clients[i]); - } - - glxBlockClients = TRUE; -} - -void glxResumeClients(void) -{ - __GLXcontext *cx, *next; - int i; - - glxBlockClients = FALSE; - - for (i = 1; i < currentMaxClients; i++) { - if (clients[i] && glxGetClient(clients[i])->inUse) - AttendClient(clients[i]); - } - - __glXleaveServer(GL_FALSE); - for (cx = glxPendingDestroyContexts; cx != NULL; cx = next) { - next = cx->next; - - cx->destroy(cx); - } - glxPendingDestroyContexts = NULL; - __glXenterServer(GL_FALSE); -} - -static void -__glXnopEnterServer(GLboolean rendering) -{ -} - -static void -__glXnopLeaveServer(GLboolean rendering) -{ -} - -static void (*__glXenterServerFunc)(GLboolean) = __glXnopEnterServer; -static void (*__glXleaveServerFunc)(GLboolean) = __glXnopLeaveServer; - -void __glXsetEnterLeaveServerFuncs(void (*enter)(GLboolean), - void (*leave)(GLboolean)) -{ - __glXenterServerFunc = enter; - __glXleaveServerFunc = leave; -} - - -void __glXenterServer(GLboolean rendering) -{ - glxServerLeaveCount--; - - if (glxServerLeaveCount == 0) - (*__glXenterServerFunc)(rendering); -} - -void __glXleaveServer(GLboolean rendering) -{ - if (glxServerLeaveCount == 0) - (*__glXleaveServerFunc)(rendering); - - glxServerLeaveCount++; -} - -/* -** Top level dispatcher; all commands are executed from here down. -*/ -static int __glXDispatch(ClientPtr client) -{ - REQUEST(xGLXSingleReq); - CARD8 opcode; - __GLXdispatchSingleProcPtr proc; - __GLXclientState *cl; - int retval; - - opcode = stuff->glxCode; - cl = glxGetClient(client); - /* Mark it in use so we suspend it on VT switch. */ - cl->inUse = TRUE; - - /* - ** If we're expecting a glXRenderLarge request, this better be one. - */ - if ((cl->largeCmdRequestsSoFar != 0) && (opcode != X_GLXRenderLarge)) { - client->errorValue = stuff->glxCode; - return __glXError(GLXBadLargeRequest); - } - - /* If we're currently blocking GLX clients, just put this guy to - * sleep, reset the request and return. */ - if (glxBlockClients) { - ResetCurrentRequest(client); - client->sequence--; - IgnoreClient(client); - return Success; - } - - /* - ** Use the opcode to index into the procedure table. - */ - proc = __glXGetProtocolDecodeFunction(& Single_dispatch_info, opcode, - client->swapped); - if (proc != NULL) { - GLboolean rendering = opcode <= X_GLXRenderLarge; - __glXleaveServer(rendering); - - retval = (*proc)(cl, (GLbyte *) stuff); - - __glXenterServer(rendering); - } - else { - retval = BadRequest; - } - - return retval; -} +/* + * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) + * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice including the dates of first publication and + * either this permission notice or a reference to + * http://oss.sgi.com/projects/FreeB/ + * shall be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF + * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Except as contained in this notice, the name of Silicon Graphics, Inc. + * shall not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization from + * Silicon Graphics, Inc. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include +#include "glxserver.h" +#include +#include +#include +#include "privates.h" +#include +#include "unpack.h" +#include "glxutil.h" +#include "glxext.h" +#include "indirect_table.h" +#include "indirect_util.h" + +/* +** The last context used by the server. It is the context that is current +** from the server's perspective. +*/ +__GLXcontext *__glXLastContext; + +/* +** X resources. +*/ +RESTYPE __glXContextRes; +RESTYPE __glXDrawableRes; + +/* +** Reply for most singles. +*/ +xGLXSingleReply __glXReply; + +static DevPrivateKeyRec glxClientPrivateKeyRec; +#define glxClientPrivateKey (&glxClientPrivateKeyRec) + +/* +** Forward declarations. +*/ +static int __glXDispatch(ClientPtr); + +/* +** Called when the extension is reset. +*/ +static void ResetExtension(ExtensionEntry* extEntry) +{ + __glXFlushContextCache(); +} + +/* +** Reset state used to keep track of large (multi-request) commands. +*/ +void __glXResetLargeCommandStatus(__GLXclientState *cl) +{ + cl->largeCmdBytesSoFar = 0; + cl->largeCmdBytesTotal = 0; + cl->largeCmdRequestsSoFar = 0; + cl->largeCmdRequestsTotal = 0; +} + +/* +** This procedure is called when the client who created the context goes +** away OR when glXDestroyContext is called. In either case, all we do is +** flag that the ID is no longer valid, and (maybe) free the context. +** use. +*/ +static int ContextGone(__GLXcontext* cx, XID id) +{ + cx->idExists = GL_FALSE; + if (!cx->isCurrent) { + __glXFreeContext(cx); + } + + return True; +} + +static __GLXcontext *glxPendingDestroyContexts; +static __GLXcontext *glxAllContexts; +static int glxServerLeaveCount; +static int glxBlockClients; + +/* +** Destroy routine that gets called when a drawable is freed. A drawable +** contains the ancillary buffers needed for rendering. +*/ +static Bool DrawableGone(__GLXdrawable *glxPriv, XID xid) +{ + __GLXcontext *c, *next; + + if (glxPriv->type == GLX_DRAWABLE_WINDOW) { + /* If this was created by glXCreateWindow, free the matching resource */ + if (glxPriv->drawId != glxPriv->pDraw->id) { + if (xid == glxPriv->drawId) + FreeResourceByType(glxPriv->pDraw->id, __glXDrawableRes, TRUE); + else + FreeResourceByType(glxPriv->drawId, __glXDrawableRes, TRUE); + } + /* otherwise this window was implicitly created by MakeCurrent */ + } + + for (c = glxAllContexts; c; c = next) { + next = c->next; + if (c->isCurrent && (c->drawPriv == glxPriv || c->readPriv == glxPriv)) { + (*c->loseCurrent)(c); + c->isCurrent = GL_FALSE; + if (c == __glXLastContext) + __glXFlushContextCache(); + } + if (c->drawPriv == glxPriv) + c->drawPriv = NULL; + if (c->readPriv == glxPriv) + c->readPriv = NULL; + } + + /* drop our reference to any backing pixmap */ + if (glxPriv->type == GLX_DRAWABLE_PIXMAP) + glxPriv->pDraw->pScreen->DestroyPixmap((PixmapPtr)glxPriv->pDraw); + + glxPriv->destroy(glxPriv); + + return True; +} + +void __glXAddToContextList(__GLXcontext *cx) +{ + cx->next = glxAllContexts; + glxAllContexts = cx; +} + +static void __glXRemoveFromContextList(__GLXcontext *cx) +{ + __GLXcontext *c, *prev; + + if (cx == glxAllContexts) + glxAllContexts = cx->next; + else { + prev = glxAllContexts; + for (c = glxAllContexts; c; c = c->next) { + if (c == cx) + prev->next = c->next; + prev = c; + } + } +} + +/* +** Free a context. +*/ +GLboolean __glXFreeContext(__GLXcontext *cx) +{ + if (cx->idExists || cx->isCurrent) return GL_FALSE; + + free(cx->feedbackBuf); + free(cx->selectBuf); + if (cx == __glXLastContext) { + __glXFlushContextCache(); + } + + __glXRemoveFromContextList(cx); + + /* We can get here through both regular dispatching from + * __glXDispatch() or as a callback from the resource manager. In + * the latter case we need to lift the DRI lock manually. */ + + if (!glxBlockClients) { + __glXleaveServer(GL_FALSE); + cx->destroy(cx); + __glXenterServer(GL_FALSE); + } else { + cx->next = glxPendingDestroyContexts; + glxPendingDestroyContexts = cx; + } + + return GL_TRUE; +} + +/************************************************************************/ + +/* +** These routines can be used to check whether a particular GL command +** has caused an error. Specifically, we use them to check whether a +** given query has caused an error, in which case a zero-length data +** reply is sent to the client. +*/ + +static GLboolean errorOccured = GL_FALSE; + +/* +** The GL was will call this routine if an error occurs. +*/ +void __glXErrorCallBack(GLenum code) +{ + errorOccured = GL_TRUE; +} + +/* +** Clear the error flag before calling the GL command. +*/ +void __glXClearErrorOccured(void) +{ + errorOccured = GL_FALSE; +} + +/* +** Check if the GL command caused an error. +*/ +GLboolean __glXErrorOccured(void) +{ + return errorOccured; +} + +static int __glXErrorBase; +int __glXEventBase; + +int __glXError(int error) +{ + return __glXErrorBase + error; +} + +__GLXclientState * +glxGetClient(ClientPtr pClient) +{ + return dixLookupPrivate(&pClient->devPrivates, glxClientPrivateKey); +} + +static void +glxClientCallback (CallbackListPtr *list, + pointer closure, + pointer data) +{ + NewClientInfoRec *clientinfo = (NewClientInfoRec *) data; + ClientPtr pClient = clientinfo->client; + __GLXclientState *cl = glxGetClient(pClient); + + switch (pClient->clientState) { + case ClientStateRunning: + /* + ** By default, assume that the client supports + ** GLX major version 1 minor version 0 protocol. + */ + cl->GLClientmajorVersion = 1; + cl->GLClientminorVersion = 0; + cl->client = pClient; + break; + + case ClientStateGone: + free(cl->returnBuf); + free(cl->largeCmdBuf); + free(cl->GLClientextensions); + break; + + default: + break; + } +} + +/************************************************************************/ + +static __GLXprovider *__glXProviderStack; + +void GlxPushProvider(__GLXprovider *provider) +{ + provider->next = __glXProviderStack; + __glXProviderStack = provider; +} + +/* +** Initialize the GLX extension. +*/ +void GlxExtensionInit(void) +{ + ExtensionEntry *extEntry; + ScreenPtr pScreen; + int i; + __GLXprovider *p; + Bool glx_provided = False; + + __glXContextRes = CreateNewResourceType((DeleteType)ContextGone, + "GLXContext"); + __glXDrawableRes = CreateNewResourceType((DeleteType)DrawableGone, + "GLXDrawable"); + if (!__glXContextRes || !__glXDrawableRes) + return; + + if (!dixRegisterPrivateKey(&glxClientPrivateKeyRec, PRIVATE_CLIENT, sizeof (__GLXclientState))) + return; + if (!AddCallback (&ClientStateCallback, glxClientCallback, 0)) + return; + + for (i = 0; i < screenInfo.numScreens; i++) { + pScreen = screenInfo.screens[i]; + + for (p = __glXProviderStack; p != NULL; p = p->next) { + __GLXscreen *glxScreen; + + glxScreen = p->screenProbe(pScreen); + if (glxScreen != NULL) { + if (glxScreen->GLXminor < glxMinorVersion) + glxMinorVersion = glxScreen->GLXminor; + LogMessage(X_INFO, + "GLX: Initialized %s GL provider for screen %d\n", + p->name, i); + break; + } + + } + + if (!p) + LogMessage(X_INFO, + "GLX: no usable GL providers found for screen %d\n", i); + else + glx_provided = True; + } + + /* don't register extension if GL is not provided on any screen */ + if (!glx_provided) + return; + + /* + ** Add extension to server extensions. + */ + extEntry = AddExtension(GLX_EXTENSION_NAME, __GLX_NUMBER_EVENTS, + __GLX_NUMBER_ERRORS, __glXDispatch, + __glXDispatch, ResetExtension, + StandardMinorOpcode); + if (!extEntry) { + FatalError("__glXExtensionInit: AddExtensions failed\n"); + return; + } + if (!AddExtensionAlias(GLX_EXTENSION_ALIAS, extEntry)) { + ErrorF("__glXExtensionInit: AddExtensionAlias failed\n"); + return; + } + + __glXErrorBase = extEntry->errorBase; + __glXEventBase = extEntry->eventBase; +} + +/************************************************************************/ + +void __glXFlushContextCache(void) +{ + __glXLastContext = 0; +} + +/* +** Make a context the current one for the GL (in this implementation, there +** is only one instance of the GL, and we use it to serve all GL clients by +** switching it between different contexts). While we are at it, look up +** a context by its tag and return its (__GLXcontext *). +*/ +__GLXcontext *__glXForceCurrent(__GLXclientState *cl, GLXContextTag tag, + int *error) +{ + __GLXcontext *cx; + + /* + ** See if the context tag is legal; it is managed by the extension, + ** so if it's invalid, we have an implementation error. + */ + cx = __glXLookupContextByTag(cl, tag); + if (!cx) { + cl->client->errorValue = tag; + *error = __glXError(GLXBadContextTag); + return 0; + } + + if (!cx->isDirect) { + if (cx->drawPriv == NULL) { + /* + ** The drawable has vanished. It must be a window, because only + ** windows can be destroyed from under us; GLX pixmaps are + ** refcounted and don't go away until no one is using them. + */ + *error = __glXError(GLXBadCurrentWindow); + return 0; + } + } + + if (cx->wait && (*cx->wait)(cx, cl, error)) + return NULL; + + if (cx == __glXLastContext) { + /* No need to re-bind */ + return cx; + } + + /* Make this context the current one for the GL. */ + if (!cx->isDirect) { + if (!(*cx->makeCurrent)(cx)) { + /* Bind failed, and set the error code. Bummer */ + cl->client->errorValue = cx->id; + *error = __glXError(GLXBadContextState); + return 0; + } + } + __glXLastContext = cx; + return cx; +} + +/************************************************************************/ + +void glxSuspendClients(void) +{ + int i; + + for (i = 1; i < currentMaxClients; i++) { + if (clients[i] && glxGetClient(clients[i])->inUse) + IgnoreClient(clients[i]); + } + + glxBlockClients = TRUE; +} + +void glxResumeClients(void) +{ + __GLXcontext *cx, *next; + int i; + + glxBlockClients = FALSE; + + for (i = 1; i < currentMaxClients; i++) { + if (clients[i] && glxGetClient(clients[i])->inUse) + AttendClient(clients[i]); + } + + __glXleaveServer(GL_FALSE); + for (cx = glxPendingDestroyContexts; cx != NULL; cx = next) { + next = cx->next; + + cx->destroy(cx); + } + glxPendingDestroyContexts = NULL; + __glXenterServer(GL_FALSE); +} + +static void +__glXnopEnterServer(GLboolean rendering) +{ +} + +static void +__glXnopLeaveServer(GLboolean rendering) +{ +} + +static void (*__glXenterServerFunc)(GLboolean) = __glXnopEnterServer; +static void (*__glXleaveServerFunc)(GLboolean) = __glXnopLeaveServer; + +void __glXsetEnterLeaveServerFuncs(void (*enter)(GLboolean), + void (*leave)(GLboolean)) +{ + __glXenterServerFunc = enter; + __glXleaveServerFunc = leave; +} + + +void __glXenterServer(GLboolean rendering) +{ + glxServerLeaveCount--; + + if (glxServerLeaveCount == 0) + (*__glXenterServerFunc)(rendering); +} + +void __glXleaveServer(GLboolean rendering) +{ + if (glxServerLeaveCount == 0) + (*__glXleaveServerFunc)(rendering); + + glxServerLeaveCount++; +} + +/* +** Top level dispatcher; all commands are executed from here down. +*/ +static int __glXDispatch(ClientPtr client) +{ + REQUEST(xGLXSingleReq); + CARD8 opcode; + __GLXdispatchSingleProcPtr proc; + __GLXclientState *cl; + int retval; + + opcode = stuff->glxCode; + cl = glxGetClient(client); + /* Mark it in use so we suspend it on VT switch. */ + cl->inUse = TRUE; + + /* + ** If we're expecting a glXRenderLarge request, this better be one. + */ + if ((cl->largeCmdRequestsSoFar != 0) && (opcode != X_GLXRenderLarge)) { + client->errorValue = stuff->glxCode; + return __glXError(GLXBadLargeRequest); + } + + /* If we're currently blocking GLX clients, just put this guy to + * sleep, reset the request and return. */ + if (glxBlockClients) { + ResetCurrentRequest(client); + client->sequence--; + IgnoreClient(client); + return Success; + } + + /* + ** Use the opcode to index into the procedure table. + */ + proc = __glXGetProtocolDecodeFunction(& Single_dispatch_info, opcode, + client->swapped); + if (proc != NULL) { + GLboolean rendering = opcode <= X_GLXRenderLarge; + __glXleaveServer(rendering); + + retval = (*proc)(cl, (GLbyte *) stuff); + + __glXenterServer(rendering); + } + else { + retval = BadRequest; + } + + return retval; +} -- cgit v1.2.3