diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/glx/x11/glxcmds.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/glx/x11/glxcmds.c | 2969 |
1 files changed, 0 insertions, 2969 deletions
diff --git a/nx-X11/extras/Mesa/src/glx/x11/glxcmds.c b/nx-X11/extras/Mesa/src/glx/x11/glxcmds.c deleted file mode 100644 index 6a31f24dd..000000000 --- a/nx-X11/extras/Mesa/src/glx/x11/glxcmds.c +++ /dev/null @@ -1,2969 +0,0 @@ -/* $XFree86: xc/lib/GL/glx/glxcmds.c,v 1.30 2004/01/30 20:33:06 alanh Exp $ */ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -*/ - -/** - * \file glxcmds.c - * Client-side GLX interface. - */ - -#include <inttypes.h> -#include "glxclient.h" -#include <X11/extensions/extutil.h> -#include <X11/extensions/Xext.h> -#include <assert.h> -#include <string.h> -#include "glapi.h" -#ifdef GLX_DIRECT_RENDERING -#include "indirect_init.h" -#include <X11/extensions/xf86vmode.h> -#include "xf86dri.h" -#endif -#include "glxextensions.h" -#include "glcontextmodes.h" -#include "glheader.h" -#include <sys/time.h> - -static const char __glXGLXClientVendorName[] = "SGI"; -static const char __glXGLXClientVersion[] = "1.4"; - - -/****************************************************************************/ -/** - * Get the __DRIdrawable for the drawable associated with a GLXContext - * - * \param dpy The display associated with \c drawable. - * \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved. - * \returns A pointer to the context's __DRIdrawable on success, or NULL if - * the drawable is not associated with a direct-rendering context. - */ - -#ifdef GLX_DIRECT_RENDERING -static __DRIdrawable * -GetDRIDrawable( Display *dpy, GLXDrawable drawable, int * const scrn_num ) -{ - __GLXdisplayPrivate * const priv = __glXInitialize(dpy); - - if ( (priv != NULL) && (priv->driDisplay.private != NULL) ) { - const unsigned screen_count = ScreenCount(dpy); - unsigned i; - - for ( i = 0 ; i < screen_count ; i++ ) { - __DRIscreen * const psc = &priv->screenConfigs[i].driScreen; - __DRIdrawable * const pdraw = (psc->private != NULL) - ? (*psc->getDrawable)(dpy, drawable, psc->private) : NULL; - - if ( pdraw != NULL ) { - if ( scrn_num != NULL ) { - *scrn_num = i; - } - return pdraw; - } - } - } - - return NULL; -} -#endif - - -/** - * Get the GLX per-screen data structure associated with a GLX context. - * - * \param dpy Display for which the GLX per-screen information is to be - * retrieved. - * \param scrn Screen on \c dpy for which the GLX per-screen information is - * to be retrieved. - * \returns A pointer to the GLX per-screen data if \c dpy and \c scrn - * specify a valid GLX screen, or NULL otherwise. - * - * \todo Should this function validate that \c scrn is within the screen - * number range for \c dpy? - */ - -static __GLXscreenConfigs * -GetGLXScreenConfigs(Display *dpy, int scrn) -{ - __GLXdisplayPrivate * const priv = __glXInitialize(dpy); - - return (priv->screenConfigs != NULL) ? &priv->screenConfigs[scrn] : NULL; -} - - -static int -GetGLXPrivScreenConfig( Display *dpy, int scrn, __GLXdisplayPrivate ** ppriv, - __GLXscreenConfigs ** ppsc ) -{ - /* Initialize the extension, if needed . This has the added value - * of initializing/allocating the display private - */ - - if ( dpy == NULL ) { - return GLX_NO_EXTENSION; - } - - *ppriv = __glXInitialize(dpy); - if ( *ppriv == NULL ) { - return GLX_NO_EXTENSION; - } - - /* Check screen number to see if its valid */ - if ((scrn < 0) || (scrn >= ScreenCount(dpy))) { - return GLX_BAD_SCREEN; - } - - /* Check to see if the GL is supported on this screen */ - *ppsc = &((*ppriv)->screenConfigs[scrn]); - if ( (*ppsc)->configs == NULL ) { - /* No support for GL on this screen regardless of visual */ - return GLX_BAD_VISUAL; - } - - return Success; -} - - -/** - * Determine if a \c GLXFBConfig supplied by the application is valid. - * - * \param dpy Application supplied \c Display pointer. - * \param config Application supplied \c GLXFBConfig. - * - * \returns If the \c GLXFBConfig is valid, the a pointer to the matching - * \c __GLcontextModes structure is returned. Otherwise, \c NULL - * is returned. - */ -static __GLcontextModes * -ValidateGLXFBConfig( Display * dpy, GLXFBConfig config ) -{ - __GLXdisplayPrivate * const priv = __glXInitialize(dpy); - const unsigned num_screens = ScreenCount(dpy); - unsigned i; - const __GLcontextModes * modes; - - - if ( priv != NULL ) { - for ( i = 0 ; i < num_screens ; i++ ) { - for ( modes = priv->screenConfigs[i].configs - ; modes != NULL - ; modes = modes->next ) { - if ( modes == (__GLcontextModes *) config ) { - return (__GLcontextModes *) config; - } - } - } - } - - return NULL; -} - - -/** - * \todo It should be possible to move the allocate of \c client_state_private - * later in the function for direct-rendering contexts. Direct-rendering - * contexts don't need to track client state, so they don't need that memory - * at all. - * - * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new - * function called \c __glXAllocateClientState that allocates the memory and - * does all the initialization (including the pixel pack / unpack). - */ -static -GLXContext AllocateGLXContext( Display *dpy ) -{ - GLXContext gc; - int bufSize; - CARD8 opcode; - __GLXattribute *state; - - if (!dpy) - return NULL; - - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return NULL; - } - - /* Allocate our context record */ - gc = (GLXContext) Xmalloc(sizeof(struct __GLXcontextRec)); - if (!gc) { - /* Out of memory */ - return NULL; - } - memset(gc, 0, sizeof(struct __GLXcontextRec)); - - state = Xmalloc(sizeof(struct __GLXattributeRec)); - if (state == NULL) { - /* Out of memory */ - Xfree(gc); - return NULL; - } - gc->client_state_private = state; - memset(gc->client_state_private, 0, sizeof(struct __GLXattributeRec)); - state->NoDrawArraysProtocol = (getenv("LIBGL_NO_DRAWARRAYS") != NULL); - - /* - ** Create a temporary buffer to hold GLX rendering commands. The size - ** of the buffer is selected so that the maximum number of GLX rendering - ** commands can fit in a single X packet and still have room in the X - ** packet for the GLXRenderReq header. - */ - - bufSize = (XMaxRequestSize(dpy) * 4) - sz_xGLXRenderReq; - gc->buf = (GLubyte *) Xmalloc(bufSize); - if (!gc->buf) { - Xfree(gc->client_state_private); - Xfree(gc); - return NULL; - } - gc->bufSize = bufSize; - - /* Fill in the new context */ - gc->renderMode = GL_RENDER; - - state->storePack.alignment = 4; - state->storeUnpack.alignment = 4; - - gc->attributes.stackPointer = &gc->attributes.stack[0]; - - /* - ** PERFORMANCE NOTE: A mode dependent fill image can speed things up. - ** Other code uses the fastImageUnpack bit, but it is never set - ** to GL_TRUE. - */ - gc->fastImageUnpack = GL_FALSE; - gc->fillImage = __glFillImage; - gc->isDirect = GL_FALSE; - gc->pc = gc->buf; - gc->bufEnd = gc->buf + bufSize; - if (__glXDebug) { - /* - ** Set limit register so that there will be one command per packet - */ - gc->limit = gc->buf; - } else { - gc->limit = gc->buf + bufSize - __GLX_BUFFER_LIMIT_SIZE; - } - gc->createDpy = dpy; - gc->majorOpcode = opcode; - - /* - ** Constrain the maximum drawing command size allowed to be - ** transfered using the X_GLXRender protocol request. First - ** constrain by a software limit, then constrain by the protocl - ** limit. - */ - if (bufSize > __GLX_RENDER_CMD_SIZE_LIMIT) { - bufSize = __GLX_RENDER_CMD_SIZE_LIMIT; - } - if (bufSize > __GLX_MAX_RENDER_CMD_SIZE) { - bufSize = __GLX_MAX_RENDER_CMD_SIZE; - } - gc->maxSmallRenderCommandSize = bufSize; - return gc; -} - - -/** - * Create a new context. Exactly one of \c vis and \c fbconfig should be - * non-NULL. - * - * \param use_glx_1_3 For FBConfigs, should GLX 1.3 protocol or - * SGIX_fbconfig protocol be used? - * \param renderType For FBConfigs, what is the rendering type? - */ - -static GLXContext -CreateContext(Display *dpy, XVisualInfo *vis, - const __GLcontextModes * const fbconfig, - GLXContext shareList, - Bool allowDirect, GLXContextID contextID, - Bool use_glx_1_3, int renderType) -{ - GLXContext gc; - - if ( dpy == NULL ) - return NULL; - - gc = AllocateGLXContext(dpy); - if (!gc) - return NULL; - - if (None == contextID) { - if ( (vis == NULL) && (fbconfig == NULL) ) - return NULL; - -#ifdef GLX_DIRECT_RENDERING - if (allowDirect) { - int screen = (fbconfig == NULL) ? vis->screen : fbconfig->screen; - __GLXscreenConfigs * const psc = GetGLXScreenConfigs(dpy, screen); - const __GLcontextModes * mode; - - /* The value of fbconfig cannot change because it is tested - * later in the function. - */ - if ( fbconfig == NULL ) { - /* FIXME: Is it possible for the __GLcontextModes structure - * FIXME: to not be found? - */ - mode = _gl_context_modes_find_visual( psc->configs, - vis->visualid ); - assert( mode != NULL ); - assert( mode->screen == screen ); - } - else { - mode = fbconfig; - } - - if (psc && psc->driScreen.private) { - void * const shared = (shareList != NULL) - ? shareList->driContext.private : NULL; - gc->driContext.private = - (*psc->driScreen.createNewContext)( dpy, mode, renderType, - shared, - &gc->driContext ); - if (gc->driContext.private) { - gc->isDirect = GL_TRUE; - gc->screen = mode->screen; - gc->vid = mode->visualID; - gc->fbconfigID = mode->fbconfigID; - gc->driContext.mode = mode; - } - } - } -#endif - - LockDisplay(dpy); - if ( fbconfig == NULL ) { - xGLXCreateContextReq *req; - - /* Send the glXCreateContext request */ - GetReq(GLXCreateContext,req); - req->reqType = gc->majorOpcode; - req->glxCode = X_GLXCreateContext; - req->context = gc->xid = XAllocID(dpy); - req->visual = vis->visualid; - req->screen = vis->screen; - req->shareList = shareList ? shareList->xid : None; - req->isDirect = gc->isDirect; - } - else if ( use_glx_1_3 ) { - xGLXCreateNewContextReq *req; - - /* Send the glXCreateNewContext request */ - GetReq(GLXCreateNewContext,req); - req->reqType = gc->majorOpcode; - req->glxCode = X_GLXCreateNewContext; - req->context = gc->xid = XAllocID(dpy); - req->fbconfig = fbconfig->fbconfigID; - req->screen = fbconfig->screen; - req->renderType = renderType; - req->shareList = shareList ? shareList->xid : None; - req->isDirect = gc->isDirect; - } - else { - xGLXVendorPrivateWithReplyReq *vpreq; - xGLXCreateContextWithConfigSGIXReq *req; - - /* Send the glXCreateNewContext request */ - GetReqExtra(GLXVendorPrivateWithReply, - sz_xGLXCreateContextWithConfigSGIXReq-sz_xGLXVendorPrivateWithReplyReq,vpreq); - req = (xGLXCreateContextWithConfigSGIXReq *)vpreq; - req->reqType = gc->majorOpcode; - req->glxCode = X_GLXVendorPrivateWithReply; - req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX; - req->context = gc->xid = XAllocID(dpy); - req->fbconfig = fbconfig->fbconfigID; - req->screen = fbconfig->screen; - req->renderType = renderType; - req->shareList = shareList ? shareList->xid : None; - req->isDirect = gc->isDirect; - } - - UnlockDisplay(dpy); - SyncHandle(); - gc->imported = GL_FALSE; - } - else { - gc->xid = contextID; - gc->imported = GL_TRUE; - } - - return gc; -} - -PUBLIC GLXContext glXCreateContext(Display *dpy, XVisualInfo *vis, - GLXContext shareList, Bool allowDirect) -{ - return CreateContext(dpy, vis, NULL, shareList, allowDirect, None, - False, 0); -} - -void __glXFreeContext(__GLXcontext *gc) -{ - if (gc->vendor) XFree((char *) gc->vendor); - if (gc->renderer) XFree((char *) gc->renderer); - if (gc->version) XFree((char *) gc->version); - if (gc->extensions) XFree((char *) gc->extensions); - __glFreeAttributeState(gc); - XFree((char *) gc->buf); - Xfree((char *) gc->client_state_private); - XFree((char *) gc); - -} - -/* -** Destroy the named context -*/ -static void -DestroyContext(Display *dpy, GLXContext gc) -{ - xGLXDestroyContextReq *req; - GLXContextID xid; - CARD8 opcode; - GLboolean imported; - - opcode = __glXSetupForCommand(dpy); - if (!opcode || !gc) { - return; - } - - __glXLock(); - xid = gc->xid; - imported = gc->imported; - gc->xid = None; - -#ifdef GLX_DIRECT_RENDERING - /* Destroy the direct rendering context */ - if (gc->isDirect) { - if (gc->driContext.private) { - (*gc->driContext.destroyContext)(dpy, gc->screen, - gc->driContext.private); - gc->driContext.private = NULL; - } - } -#endif - - if (gc->currentDpy) { - /* Have to free later cuz it's in use now */ - __glXUnlock(); - } else { - /* Destroy the handle if not current to anybody */ - __glXUnlock(); - __glXFreeContext(gc); - } - - if (!imported) { - /* - ** This dpy also created the server side part of the context. - ** Send the glXDestroyContext request. - */ - LockDisplay(dpy); - GetReq(GLXDestroyContext,req); - req->reqType = opcode; - req->glxCode = X_GLXDestroyContext; - req->context = xid; - UnlockDisplay(dpy); - SyncHandle(); - } -} - -PUBLIC void glXDestroyContext(Display *dpy, GLXContext gc) -{ - DestroyContext(dpy, gc); -} - -/* -** Return the major and minor version #s for the GLX extension -*/ -PUBLIC Bool glXQueryVersion(Display *dpy, int *major, int *minor) -{ - __GLXdisplayPrivate *priv; - - /* Init the extension. This fetches the major and minor version. */ - priv = __glXInitialize(dpy); - if (!priv) return GL_FALSE; - - if (major) *major = priv->majorVersion; - if (minor) *minor = priv->minorVersion; - return GL_TRUE; -} - -/* -** Query the existance of the GLX extension -*/ -PUBLIC Bool glXQueryExtension(Display *dpy, int *errorBase, int *eventBase) -{ - int major_op, erb, evb; - Bool rv; - - rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb); - if (rv) { - if (errorBase) *errorBase = erb; - if (eventBase) *eventBase = evb; - } - return rv; -} - -/* -** Put a barrier in the token stream that forces the GL to finish its -** work before X can proceed. -*/ -PUBLIC void glXWaitGL(void) -{ - xGLXWaitGLReq *req; - GLXContext gc = __glXGetCurrentContext(); - Display *dpy = gc->currentDpy; - - if (!dpy) return; - - /* Flush any pending commands out */ - __glXFlushRenderBuffer(gc, gc->pc); - -#ifdef GLX_DIRECT_RENDERING - if (gc->isDirect) { -/* This bit of ugliness unwraps the glFinish function */ -#ifdef glFinish -#undef glFinish -#endif - glFinish(); - return; - } -#endif - - /* Send the glXWaitGL request */ - LockDisplay(dpy); - GetReq(GLXWaitGL,req); - req->reqType = gc->majorOpcode; - req->glxCode = X_GLXWaitGL; - req->contextTag = gc->currentContextTag; - UnlockDisplay(dpy); - SyncHandle(); -} - -/* -** Put a barrier in the token stream that forces X to finish its -** work before GL can proceed. -*/ -PUBLIC void glXWaitX(void) -{ - xGLXWaitXReq *req; - GLXContext gc = __glXGetCurrentContext(); - Display *dpy = gc->currentDpy; - - if (!dpy) return; - - /* Flush any pending commands out */ - __glXFlushRenderBuffer(gc, gc->pc); - -#ifdef GLX_DIRECT_RENDERING - if (gc->isDirect) { - XSync(dpy, False); - return; - } -#endif - - /* - ** Send the glXWaitX request. - */ - LockDisplay(dpy); - GetReq(GLXWaitX,req); - req->reqType = gc->majorOpcode; - req->glxCode = X_GLXWaitX; - req->contextTag = gc->currentContextTag; - UnlockDisplay(dpy); - SyncHandle(); -} - -PUBLIC void glXUseXFont(Font font, int first, int count, int listBase) -{ - xGLXUseXFontReq *req; - GLXContext gc = __glXGetCurrentContext(); - Display *dpy = gc->currentDpy; - - if (!dpy) return; - - /* Flush any pending commands out */ - (void) __glXFlushRenderBuffer(gc, gc->pc); - -#ifdef GLX_DIRECT_RENDERING - if (gc->isDirect) { - DRI_glXUseXFont(font, first, count, listBase); - return; - } -#endif - - /* Send the glXUseFont request */ - LockDisplay(dpy); - GetReq(GLXUseXFont,req); - req->reqType = gc->majorOpcode; - req->glxCode = X_GLXUseXFont; - req->contextTag = gc->currentContextTag; - req->font = font; - req->first = first; - req->count = count; - req->listBase = listBase; - UnlockDisplay(dpy); - SyncHandle(); -} - -/************************************************************************/ - -/* -** Copy the source context to the destination context using the -** attribute "mask". -*/ -PUBLIC void glXCopyContext(Display *dpy, GLXContext source, - GLXContext dest, unsigned long mask) -{ - xGLXCopyContextReq *req; - GLXContext gc = __glXGetCurrentContext(); - GLXContextTag tag; - CARD8 opcode; - - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return; - } - -#ifdef GLX_DIRECT_RENDERING - if (gc->isDirect) { - /* NOT_DONE: This does not work yet */ - } -#endif - - /* - ** If the source is the current context, send its tag so that the context - ** can be flushed before the copy. - */ - if (source == gc && dpy == gc->currentDpy) { - tag = gc->currentContextTag; - } else { - tag = 0; - } - - /* Send the glXCopyContext request */ - LockDisplay(dpy); - GetReq(GLXCopyContext,req); - req->reqType = opcode; - req->glxCode = X_GLXCopyContext; - req->source = source ? source->xid : None; - req->dest = dest ? dest->xid : None; - req->mask = mask; - req->contextTag = tag; - UnlockDisplay(dpy); - SyncHandle(); -} - - -/** - * Determine if a context uses direct rendering. - * - * \param dpy Display where the context was created. - * \param contextID ID of the context to be tested. - * - * \returns \c GL_TRUE if the context is direct rendering or not. - */ -static Bool __glXIsDirect(Display *dpy, GLXContextID contextID) -{ - xGLXIsDirectReq *req; - xGLXIsDirectReply reply; - CARD8 opcode; - - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return GL_FALSE; - } - - /* Send the glXIsDirect request */ - LockDisplay(dpy); - GetReq(GLXIsDirect,req); - req->reqType = opcode; - req->glxCode = X_GLXIsDirect; - req->context = contextID; - _XReply(dpy, (xReply*) &reply, 0, False); - UnlockDisplay(dpy); - SyncHandle(); - - return reply.isDirect; -} - -/** - * \todo - * Shouldn't this function \b always return \c GL_FALSE when - * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with - * the GLX protocol here at all? - */ -PUBLIC Bool glXIsDirect(Display *dpy, GLXContext gc) -{ - if (!gc) { - return GL_FALSE; -#ifdef GLX_DIRECT_RENDERING - } else if (gc->isDirect) { - return GL_TRUE; -#endif - } - return __glXIsDirect(dpy, gc->xid); -} - -PUBLIC GLXPixmap glXCreateGLXPixmap(Display *dpy, XVisualInfo *vis, - Pixmap pixmap) -{ - xGLXCreateGLXPixmapReq *req; - GLXPixmap xid; - CARD8 opcode; - - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return None; - } - - /* Send the glXCreateGLXPixmap request */ - LockDisplay(dpy); - GetReq(GLXCreateGLXPixmap,req); - req->reqType = opcode; - req->glxCode = X_GLXCreateGLXPixmap; - req->screen = vis->screen; - req->visual = vis->visualid; - req->pixmap = pixmap; - req->glxpixmap = xid = XAllocID(dpy); - UnlockDisplay(dpy); - SyncHandle(); - return xid; -} - -/* -** Destroy the named pixmap -*/ -PUBLIC void glXDestroyGLXPixmap(Display *dpy, GLXPixmap glxpixmap) -{ - xGLXDestroyGLXPixmapReq *req; - CARD8 opcode; - - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return; - } - - /* Send the glXDestroyGLXPixmap request */ - LockDisplay(dpy); - GetReq(GLXDestroyGLXPixmap,req); - req->reqType = opcode; - req->glxCode = X_GLXDestroyGLXPixmap; - req->glxpixmap = glxpixmap; - UnlockDisplay(dpy); - SyncHandle(); -} - -PUBLIC void glXSwapBuffers(Display *dpy, GLXDrawable drawable) -{ - xGLXSwapBuffersReq *req; - GLXContext gc; - GLXContextTag tag; - CARD8 opcode; -#ifdef GLX_DIRECT_RENDERING - __DRIdrawable *pdraw = GetDRIDrawable( dpy, drawable, NULL ); - - if ( pdraw != NULL ) { - (*pdraw->swapBuffers)(dpy, pdraw->private); - return; - } -#endif - - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return; - } - - /* - ** The calling thread may or may not have a current context. If it - ** does, send the context tag so the server can do a flush. - */ - gc = __glXGetCurrentContext(); - if ((gc != NULL) && (dpy == gc->currentDpy) && - ((drawable == gc->currentDrawable) || (drawable == gc->currentReadable)) ) { - tag = gc->currentContextTag; - } else { - tag = 0; - } - - /* Send the glXSwapBuffers request */ - LockDisplay(dpy); - GetReq(GLXSwapBuffers,req); - req->reqType = opcode; - req->glxCode = X_GLXSwapBuffers; - req->drawable = drawable; - req->contextTag = tag; - UnlockDisplay(dpy); - SyncHandle(); - XFlush(dpy); -} - - -/* -** Return configuration information for the given display, screen and -** visual combination. -*/ -PUBLIC int glXGetConfig(Display *dpy, XVisualInfo *vis, int attribute, - int *value_return) -{ - __GLXdisplayPrivate *priv; - __GLXscreenConfigs *psc; - int status; - - status = GetGLXPrivScreenConfig( dpy, vis->screen, & priv, & psc ); - if ( status == Success ) { - const __GLcontextModes * const modes = _gl_context_modes_find_visual( - psc->configs, vis->visualid ); - - /* Lookup attribute after first finding a match on the visual */ - if ( modes != NULL ) { - return _gl_get_context_mode_data( modes, attribute, value_return ); - } - - status = GLX_BAD_VISUAL; - } - - /* - ** If we can't find the config for this visual, this visual is not - ** supported by the OpenGL implementation on the server. - */ - if ( (status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL) ) { - *value_return = GL_FALSE; - status = Success; - } - - return status; -} - -/************************************************************************/ - -static void -init_fbconfig_for_chooser( __GLcontextModes * config, - GLboolean fbconfig_style_tags ) -{ - memset( config, 0, sizeof( __GLcontextModes ) ); - config->visualID = (XID) GLX_DONT_CARE; - config->visualType = GLX_DONT_CARE; - - /* glXChooseFBConfig specifies different defaults for these two than - * glXChooseVisual. - */ - if ( fbconfig_style_tags ) { - config->rgbMode = GL_TRUE; - config->doubleBufferMode = GLX_DONT_CARE; - } - - config->visualRating = GLX_DONT_CARE; - config->transparentPixel = GLX_NONE; - config->transparentRed = GLX_DONT_CARE; - config->transparentGreen = GLX_DONT_CARE; - config->transparentBlue = GLX_DONT_CARE; - config->transparentAlpha = GLX_DONT_CARE; - config->transparentIndex = GLX_DONT_CARE; - - config->drawableType = GLX_WINDOW_BIT; - config->renderType = (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; - config->xRenderable = GLX_DONT_CARE; - config->fbconfigID = (GLXFBConfigID)(GLX_DONT_CARE); - - config->swapMethod = GLX_DONT_CARE; -} - -#define MATCH_DONT_CARE( param ) \ - do { \ - if ( (a-> param != GLX_DONT_CARE) \ - && (a-> param != b-> param) ) { \ - return False; \ - } \ - } while ( 0 ) - -#define MATCH_MINIMUM( param ) \ - do { \ - if ( (a-> param != GLX_DONT_CARE) \ - && (a-> param > b-> param) ) { \ - return False; \ - } \ - } while ( 0 ) - -#define MATCH_EXACT( param ) \ - do { \ - if ( a-> param != b-> param) { \ - return False; \ - } \ - } while ( 0 ) - -/** - * Determine if two GLXFBConfigs are compatible. - * - * \param a Application specified config to test. - * \param b Server specified config to test against \c a. - */ -static Bool -fbconfigs_compatible( const __GLcontextModes * const a, - const __GLcontextModes * const b ) -{ - MATCH_DONT_CARE( doubleBufferMode ); - MATCH_DONT_CARE( visualType ); - MATCH_DONT_CARE( visualRating ); - MATCH_DONT_CARE( xRenderable ); - MATCH_DONT_CARE( fbconfigID ); - MATCH_DONT_CARE( swapMethod ); - - MATCH_MINIMUM( rgbBits ); - MATCH_MINIMUM( numAuxBuffers ); - MATCH_MINIMUM( redBits ); - MATCH_MINIMUM( greenBits ); - MATCH_MINIMUM( blueBits ); - MATCH_MINIMUM( alphaBits ); - MATCH_MINIMUM( depthBits ); - MATCH_MINIMUM( stencilBits ); - MATCH_MINIMUM( accumRedBits ); - MATCH_MINIMUM( accumGreenBits ); - MATCH_MINIMUM( accumBlueBits ); - MATCH_MINIMUM( accumAlphaBits ); - MATCH_MINIMUM( sampleBuffers ); - MATCH_MINIMUM( maxPbufferWidth ); - MATCH_MINIMUM( maxPbufferHeight ); - MATCH_MINIMUM( maxPbufferPixels ); - MATCH_MINIMUM( samples ); - - MATCH_DONT_CARE( stereoMode ); - MATCH_EXACT( level ); - - if ( ((a->drawableType & b->drawableType) == 0) - || ((a->renderType & b->renderType) == 0) ) { - return False; - } - - - /* There is a bug in a few of the XFree86 DDX drivers. They contain - * visuals with a "transparent type" of 0 when they really mean GLX_NONE. - * Technically speaking, it is a bug in the DDX driver, but there is - * enough of an installed base to work around the problem here. In any - * case, 0 is not a valid value of the transparent type, so we'll treat 0 - * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and - * 0 from the server to be a match to maintain backward compatibility with - * the (broken) drivers. - */ - - if ( a->transparentPixel != GLX_DONT_CARE - && a->transparentPixel != 0 ) { - if ( a->transparentPixel == GLX_NONE ) { - if ( b->transparentPixel != GLX_NONE && b->transparentPixel != 0 ) - return False; - } else { - MATCH_EXACT( transparentPixel ); - } - - switch ( a->transparentPixel ) { - case GLX_TRANSPARENT_RGB: - MATCH_DONT_CARE( transparentRed ); - MATCH_DONT_CARE( transparentGreen ); - MATCH_DONT_CARE( transparentBlue ); - MATCH_DONT_CARE( transparentAlpha ); - break; - - case GLX_TRANSPARENT_INDEX: - MATCH_DONT_CARE( transparentIndex ); - break; - - default: - break; - } - } - - return True; -} - - -/* There's some trickly language in the GLX spec about how this is supposed - * to work. Basically, if a given component size is either not specified - * or the requested size is zero, it is supposed to act like PERFER_SMALLER. - * Well, that's really hard to do with the code as-is. This behavior is - * closer to correct, but still not technically right. - */ -#define PREFER_LARGER_OR_ZERO(comp) \ - do { \ - if ( ((*a)-> comp) != ((*b)-> comp) ) { \ - if ( ((*a)-> comp) == 0 ) { \ - return -1; \ - } \ - else if ( ((*b)-> comp) == 0 ) { \ - return 1; \ - } \ - else { \ - return ((*b)-> comp) - ((*a)-> comp) ; \ - } \ - } \ - } while( 0 ) - -#define PREFER_LARGER(comp) \ - do { \ - if ( ((*a)-> comp) != ((*b)-> comp) ) { \ - return ((*b)-> comp) - ((*a)-> comp) ; \ - } \ - } while( 0 ) - -#define PREFER_SMALLER(comp) \ - do { \ - if ( ((*a)-> comp) != ((*b)-> comp) ) { \ - return ((*a)-> comp) - ((*b)-> comp) ; \ - } \ - } while( 0 ) - -/** - * Compare two GLXFBConfigs. This function is intended to be used as the - * compare function passed in to qsort. - * - * \returns If \c a is a "better" config, according to the specification of - * SGIX_fbconfig, a number less than zero is returned. If \c b is - * better, then a number greater than zero is return. If both are - * equal, zero is returned. - * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX - */ -static int -fbconfig_compare( const __GLcontextModes * const * const a, - const __GLcontextModes * const * const b ) -{ - /* The order of these comparisons must NOT change. It is defined by - * the GLX 1.3 spec and ARB_multisample. - */ - - PREFER_SMALLER( visualSelectGroup ); - - /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and - * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the - * numerical sort order of the enums (0x8000, 0x8001, and 0x800D). - */ - PREFER_SMALLER( visualRating ); - - /* This isn't quite right. It is supposed to compare the sum of the - * components the user specifically set minimums for. - */ - PREFER_LARGER_OR_ZERO( redBits ); - PREFER_LARGER_OR_ZERO( greenBits ); - PREFER_LARGER_OR_ZERO( blueBits ); - PREFER_LARGER_OR_ZERO( alphaBits ); - - PREFER_SMALLER( rgbBits ); - - if ( ((*a)->doubleBufferMode != (*b)->doubleBufferMode) ) { - /* Prefer single-buffer. - */ - return ( !(*a)->doubleBufferMode ) ? -1 : 1; - } - - PREFER_SMALLER( numAuxBuffers ); - - PREFER_LARGER_OR_ZERO( depthBits ); - PREFER_SMALLER( stencilBits ); - - /* This isn't quite right. It is supposed to compare the sum of the - * components the user specifically set minimums for. - */ - PREFER_LARGER_OR_ZERO( accumRedBits ); - PREFER_LARGER_OR_ZERO( accumGreenBits ); - PREFER_LARGER_OR_ZERO( accumBlueBits ); - PREFER_LARGER_OR_ZERO( accumAlphaBits ); - - PREFER_SMALLER( visualType ); - - /* None of the multisample specs say where this comparison should happen, - * so I put it near the end. - */ - PREFER_SMALLER( sampleBuffers ); - PREFER_SMALLER( samples ); - - /* None of the pbuffer or fbconfig specs say that this comparison needs - * to happen at all, but it seems like it should. - */ - PREFER_LARGER( maxPbufferWidth ); - PREFER_LARGER( maxPbufferHeight ); - PREFER_LARGER( maxPbufferPixels ); - - return 0; -} - - -/** - * Selects and sorts a subset of the supplied configs based on the attributes. - * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig, - * and \c glXChooseFBConfigSGIX. - * - * \param configs Array of pointers to possible configs. The elements of - * this array that do not meet the criteria will be set to - * NULL. The remaining elements will be sorted according to - * the various visual / FBConfig selection rules. - * \param num_configs Number of elements in the \c configs array. - * \param attribList Attributes used select from \c configs. This array is - * terminated by a \c None tag. The array can either take - * the form expected by \c glXChooseVisual (where boolean - * tags do not have a value) or by \c glXChooseFBConfig - * (where every tag has a value). - * \param fbconfig_style_tags Selects whether \c attribList is in - * \c glXChooseVisual style or - * \c glXChooseFBConfig style. - * \returns The number of valid elements left in \c configs. - * - * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX - */ -static int -choose_visual( __GLcontextModes ** configs, int num_configs, - const int *attribList, GLboolean fbconfig_style_tags ) -{ - __GLcontextModes test_config; - int base; - int i; - - /* This is a fairly direct implementation of the selection method - * described by GLX_SGIX_fbconfig. Start by culling out all the - * configs that are not compatible with the selected parameter - * list. - */ - - init_fbconfig_for_chooser( & test_config, fbconfig_style_tags ); - __glXInitializeVisualConfigFromTags( & test_config, 512, - (const INT32 *) attribList, - GL_TRUE, fbconfig_style_tags ); - - base = 0; - for ( i = 0 ; i < num_configs ; i++ ) { - if ( fbconfigs_compatible( & test_config, configs[i] ) ) { - configs[ base ] = configs[ i ]; - base++; - } - } - - if ( base == 0 ) { - return 0; - } - - if ( base < num_configs ) { - (void) memset( & configs[ base ], 0, - sizeof( void * ) * (num_configs - base) ); - } - - /* After the incompatible configs are removed, the resulting - * list is sorted according to the rules set out in the various - * specifications. - */ - - qsort( configs, base, sizeof( __GLcontextModes * ), - (int (*)(const void*, const void*)) fbconfig_compare ); - return base; -} - - - - -/* -** Return the visual that best matches the template. Return None if no -** visual matches the template. -*/ -PUBLIC XVisualInfo *glXChooseVisual(Display *dpy, int screen, int *attribList) -{ - XVisualInfo *visualList = NULL; - __GLXdisplayPrivate *priv; - __GLXscreenConfigs *psc; - __GLcontextModes test_config; - __GLcontextModes *modes; - const __GLcontextModes *best_config = NULL; - - /* - ** Get a list of all visuals, return if list is empty - */ - if ( GetGLXPrivScreenConfig( dpy, screen, & priv, & psc ) != Success ) { - return None; - } - - - /* - ** Build a template from the defaults and the attribute list - ** Free visual list and return if an unexpected token is encountered - */ - init_fbconfig_for_chooser( & test_config, GL_FALSE ); - __glXInitializeVisualConfigFromTags( & test_config, 512, - (const INT32 *) attribList, - GL_TRUE, GL_FALSE ); - - /* - ** Eliminate visuals that don't meet minimum requirements - ** Compute a score for those that do - ** Remember which visual, if any, got the highest score - */ - for ( modes = psc->configs ; modes != NULL ; modes = modes->next ) { - if ( fbconfigs_compatible( & test_config, modes ) - && ((best_config == NULL) - || (fbconfig_compare( (const __GLcontextModes * const * const)&modes, &best_config ) < 0)) ) { - best_config = modes; - } - } - - /* - ** If no visual is acceptable, return None - ** Otherwise, create an XVisualInfo list with just the selected X visual - ** and return this. - */ - if (best_config != NULL) { - XVisualInfo visualTemplate; - int i; - - visualTemplate.screen = screen; - visualTemplate.visualid = best_config->visualID; - visualList = XGetVisualInfo( dpy, VisualScreenMask|VisualIDMask, - &visualTemplate, &i ); - } - - return visualList; -} - - -PUBLIC const char *glXQueryExtensionsString( Display *dpy, int screen ) -{ - __GLXscreenConfigs *psc; - __GLXdisplayPrivate *priv; - - if ( GetGLXPrivScreenConfig( dpy, screen, & priv, & psc ) != Success ) { - return NULL; - } - - if (!psc->effectiveGLXexts) { - if (!psc->serverGLXexts) { - psc->serverGLXexts = __glXGetStringFromServer(dpy, priv->majorOpcode, - X_GLXQueryServerString, - screen, GLX_EXTENSIONS); - } - - __glXCalculateUsableExtensions(psc, -#ifdef GLX_DIRECT_RENDERING - (psc->driScreen.private != NULL), -#else - GL_FALSE, -#endif - priv->minorVersion); - } - - return psc->effectiveGLXexts; -} - -PUBLIC const char *glXGetClientString( Display *dpy, int name ) -{ - switch(name) { - case GLX_VENDOR: - return (__glXGLXClientVendorName); - case GLX_VERSION: - return (__glXGLXClientVersion); - case GLX_EXTENSIONS: - return (__glXGetClientExtensions()); - default: - return NULL; - } -} - -PUBLIC const char *glXQueryServerString( Display *dpy, int screen, int name ) -{ - __GLXscreenConfigs *psc; - __GLXdisplayPrivate *priv; - const char ** str; - - - if ( GetGLXPrivScreenConfig( dpy, screen, & priv, & psc ) != Success ) { - return NULL; - } - - switch(name) { - case GLX_VENDOR: - str = & priv->serverGLXvendor; - break; - case GLX_VERSION: - str = & priv->serverGLXversion; - break; - case GLX_EXTENSIONS: - str = & psc->serverGLXexts; - break; - default: - return NULL; - } - - if ( *str == NULL ) { - *str = __glXGetStringFromServer(dpy, priv->majorOpcode, - X_GLXQueryServerString, screen, name); - } - - return *str; -} - -void __glXClientInfo ( Display *dpy, int opcode ) -{ - xGLXClientInfoReq *req; - int size; - char * ext_str = __glXGetClientGLExtensionString(); - - /* Send the glXClientInfo request */ - LockDisplay(dpy); - GetReq(GLXClientInfo,req); - req->reqType = opcode; - req->glxCode = X_GLXClientInfo; - req->major = GLX_MAJOR_VERSION; - req->minor = GLX_MINOR_VERSION; - - size = strlen( ext_str ) + 1; - req->length += (size + 3) >> 2; - req->numbytes = size; - Data(dpy, ext_str, size); - - UnlockDisplay(dpy); - SyncHandle(); - - Xfree( ext_str ); -} - - -/* -** EXT_import_context -*/ - -PUBLIC Display *glXGetCurrentDisplay(void) -{ - GLXContext gc = __glXGetCurrentContext(); - if (NULL == gc) return NULL; - return gc->currentDpy; -} - -PUBLIC GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (), - glXGetCurrentDisplay) - -/** - * Used internally by libGL to send \c xGLXQueryContextinfoExtReq requests - * to the X-server. - * - * \param dpy Display where \c ctx was created. - * \param ctx Context to query. - * \returns \c Success on success. \c GLX_BAD_CONTEXT if \c ctx is invalid, - * or zero if the request failed due to internal problems (i.e., - * unable to allocate temporary memory, etc.) - * - * \note - * This function dynamically determines whether to use the EXT_import_context - * version of the protocol or the GLX 1.3 version of the protocol. - */ -static int __glXQueryContextInfo(Display *dpy, GLXContext ctx) -{ - __GLXdisplayPrivate *priv = __glXInitialize(dpy); - xGLXQueryContextReply reply; - CARD8 opcode; - GLuint numValues; - int retval; - - if (ctx == NULL) { - return GLX_BAD_CONTEXT; - } - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return 0; - } - - /* Send the glXQueryContextInfoEXT request */ - LockDisplay(dpy); - - if ( (priv->majorVersion > 1) || (priv->minorVersion >= 3) ) { - xGLXQueryContextReq *req; - - GetReq(GLXQueryContext, req); - - req->reqType = opcode; - req->glxCode = X_GLXQueryContext; - req->context = (unsigned int)(ctx->xid); - } - else { - xGLXVendorPrivateReq *vpreq; - xGLXQueryContextInfoEXTReq *req; - - GetReqExtra( GLXVendorPrivate, - sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq, - vpreq ); - req = (xGLXQueryContextInfoEXTReq *)vpreq; - req->reqType = opcode; - req->glxCode = X_GLXVendorPrivateWithReply; - req->vendorCode = X_GLXvop_QueryContextInfoEXT; - req->context = (unsigned int)(ctx->xid); - } - - _XReply(dpy, (xReply*) &reply, 0, False); - - numValues = reply.n; - if (numValues == 0) - retval = Success; - else if (numValues > __GLX_MAX_CONTEXT_PROPS) - retval = 0; - else - { - int *propList, *pProp; - int nPropListBytes; - int i; - - nPropListBytes = numValues << 3; - propList = (int *) Xmalloc(nPropListBytes); - if (NULL == propList) { - retval = 0; - } else { - _XRead(dpy, (char *)propList, nPropListBytes); - pProp = propList; - for (i=0; i < numValues; i++) { - switch (*pProp++) { - case GLX_SHARE_CONTEXT_EXT: - ctx->share_xid = *pProp++; - break; - case GLX_VISUAL_ID_EXT: - ctx->vid = *pProp++; - break; - case GLX_SCREEN: - ctx->screen = *pProp++; - break; - case GLX_FBCONFIG_ID: - ctx->fbconfigID = *pProp++; - break; - case GLX_RENDER_TYPE: - ctx->renderType = *pProp++; - break; - default: - pProp++; - continue; - } - } - Xfree((char *)propList); - retval = Success; - } - } - UnlockDisplay(dpy); - SyncHandle(); - return retval; -} - -PUBLIC int -glXQueryContext(Display *dpy, GLXContext ctx, int attribute, int *value) -{ - int retVal; - - /* get the information from the server if we don't have it already */ - if (!ctx->isDirect && (ctx->vid == None)) { - retVal = __glXQueryContextInfo(dpy, ctx); - if (Success != retVal) return retVal; - } - switch (attribute) { - case GLX_SHARE_CONTEXT_EXT: - *value = (int)(ctx->share_xid); - break; - case GLX_VISUAL_ID_EXT: - *value = (int)(ctx->vid); - break; - case GLX_SCREEN: - *value = (int)(ctx->screen); - break; - case GLX_FBCONFIG_ID: - *value = (int)(ctx->fbconfigID); - break; - case GLX_RENDER_TYPE: - *value = (int)(ctx->renderType); - break; - default: - return GLX_BAD_ATTRIBUTE; - } - return Success; -} - -PUBLIC GLX_ALIAS( int, glXQueryContextInfoEXT, - (Display *dpy, GLXContext ctx, int attribute, int *value), - (dpy, ctx, attribute, value), - glXQueryContext ) - -PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx) -{ - return ctx->xid; -} - -PUBLIC GLXContext glXImportContextEXT(Display *dpy, GLXContextID contextID) -{ - GLXContext ctx; - - if (contextID == None) { - return NULL; - } - if (__glXIsDirect(dpy, contextID)) { - return NULL; - } - - ctx = CreateContext(dpy, NULL, NULL, NULL, False, contextID, False, 0); - if (NULL != ctx) { - if (Success != __glXQueryContextInfo(dpy, ctx)) { - return NULL; - } - } - return ctx; -} - -PUBLIC void glXFreeContextEXT(Display *dpy, GLXContext ctx) -{ - DestroyContext(dpy, ctx); -} - - - -/* - * GLX 1.3 functions - these are just stubs for now! - */ - -PUBLIC GLXFBConfig *glXChooseFBConfig(Display *dpy, int screen, - const int *attribList, int *nitems) -{ - __GLcontextModes ** config_list; - int list_size; - - - config_list = (__GLcontextModes **) - glXGetFBConfigs( dpy, screen, & list_size ); - - if ( (config_list != NULL) && (list_size > 0) && (attribList != NULL) ) { - list_size = choose_visual( config_list, list_size, attribList, - GL_TRUE ); - if ( list_size == 0 ) { - XFree( config_list ); - config_list = NULL; - } - } - - *nitems = list_size; - return (GLXFBConfig *) config_list; -} - - -PUBLIC GLXContext glXCreateNewContext(Display *dpy, GLXFBConfig config, - int renderType, GLXContext shareList, - Bool allowDirect) -{ - return CreateContext( dpy, NULL, (__GLcontextModes *) config, shareList, - allowDirect, None, True, renderType ); -} - - -PUBLIC GLXDrawable glXGetCurrentReadDrawable(void) -{ - GLXContext gc = __glXGetCurrentContext(); - return gc->currentReadable; -} - - -PUBLIC GLXFBConfig *glXGetFBConfigs(Display *dpy, int screen, int *nelements) -{ - __GLXdisplayPrivate *priv = __glXInitialize(dpy); - __GLcontextModes ** config = NULL; - int i; - - if ( (priv->screenConfigs != NULL) - && (screen >= 0) && (screen <= ScreenCount(dpy)) - && (priv->screenConfigs[screen].configs != NULL) - && (priv->screenConfigs[screen].configs->fbconfigID != GLX_DONT_CARE) ) { - unsigned num_configs = 0; - __GLcontextModes * modes; - - - for ( modes = priv->screenConfigs[screen].configs - ; modes != NULL - ; modes = modes->next ) { - if ( modes->fbconfigID != GLX_DONT_CARE ) { - num_configs++; - } - } - - config = (__GLcontextModes **) Xmalloc( sizeof(__GLcontextModes *) - * num_configs ); - if ( config != NULL ) { - *nelements = num_configs; - i = 0; - for ( modes = priv->screenConfigs[screen].configs - ; modes != NULL - ; modes = modes->next ) { - config[i] = modes; - i++; - } - } - } - return (GLXFBConfig *) config; -} - - -PUBLIC int glXGetFBConfigAttrib(Display *dpy, GLXFBConfig config, - int attribute, int *value) -{ - __GLcontextModes * const modes = ValidateGLXFBConfig( dpy, config ); - - return (modes != NULL) - ? _gl_get_context_mode_data( modes, attribute, value ) - : GLXBadFBConfig; -} - - -PUBLIC XVisualInfo *glXGetVisualFromFBConfig(Display *dpy, GLXFBConfig config) -{ - XVisualInfo visualTemplate; - __GLcontextModes * fbconfig = (__GLcontextModes *) config; - int count; - - /* - ** Get a list of all visuals, return if list is empty - */ - visualTemplate.visualid = fbconfig->visualID; - return XGetVisualInfo(dpy,VisualIDMask,&visualTemplate,&count); -} - - -/* -** GLX_SGI_make_current_read -*/ - -PUBLIC GLX_ALIAS(GLXDrawable, glXGetCurrentReadDrawableSGI, (void), (), - glXGetCurrentReadDrawable) - - -/* -** GLX_SGI_swap_control -*/ -PUBLIC int glXSwapIntervalSGI(int interval) -{ - xGLXVendorPrivateReq *req; - GLXContext gc = __glXGetCurrentContext(); - Display * dpy; - CARD32 * interval_ptr; - CARD8 opcode; - - if ( gc == NULL ) { - return GLX_BAD_CONTEXT; - } - - if ( interval <= 0 ) { - return GLX_BAD_VALUE; - } - -#ifdef GLX_DIRECT_RENDERING - if ( gc->isDirect ) { - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( gc->currentDpy, - gc->screen ); - __DRIdrawable * const pdraw = GetDRIDrawable( gc->currentDpy, - gc->currentDrawable, - NULL ); - if ( __glXExtensionBitIsEnabled( psc, SGI_swap_control_bit ) - && (pdraw != NULL) ) { - pdraw->swap_interval = interval; - return 0; - } - else { - return GLX_BAD_CONTEXT; - } - } -#endif - dpy = gc->currentDpy; - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return 0; - } - - /* Send the glXSwapIntervalSGI request */ - LockDisplay(dpy); - GetReqExtra(GLXVendorPrivate,sizeof(CARD32),req); - req->reqType = opcode; - req->glxCode = X_GLXVendorPrivate; - req->vendorCode = X_GLXvop_SwapIntervalSGI; - req->contextTag = gc->currentContextTag; - - interval_ptr = (CARD32 *) req + 1; - *interval_ptr = interval; - - UnlockDisplay(dpy); - SyncHandle(); - XFlush(dpy); - - return 0; -} - - -/* -** GLX_MESA_swap_control -*/ -PUBLIC GLint glXSwapIntervalMESA(unsigned interval) -{ -#ifdef GLX_DIRECT_RENDERING - GLXContext gc = __glXGetCurrentContext(); - - if ( interval < 0 ) { - return GLX_BAD_VALUE; - } - - if ( (gc != NULL) && gc->isDirect ) { - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( gc->currentDpy, - gc->screen ); - - if ( (psc != NULL) && (psc->driScreen.private != NULL) - && __glXExtensionBitIsEnabled( psc, MESA_swap_control_bit ) ) { - __DRIdrawable * const pdraw = - (*psc->driScreen.getDrawable)(gc->currentDpy, - gc->currentDrawable, - psc->driScreen.private); - if ( pdraw != NULL ) { - pdraw->swap_interval = interval; - return 0; - } - } - } -#else - (void) interval; -#endif - - return GLX_BAD_CONTEXT; -} - -PUBLIC GLint glXGetSwapIntervalMESA( void ) -{ -#ifdef GLX_DIRECT_RENDERING - GLXContext gc = __glXGetCurrentContext(); - - if ( (gc != NULL) && gc->isDirect ) { - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( gc->currentDpy, - gc->screen ); - - if ( (psc != NULL) && (psc->driScreen.private != NULL) - && __glXExtensionBitIsEnabled( psc, MESA_swap_control_bit ) ) { - __DRIdrawable * const pdraw = - (*psc->driScreen.getDrawable)(gc->currentDpy, - gc->currentDrawable, - psc->driScreen.private); - if ( pdraw != NULL ) { - return pdraw->swap_interval; - } - } - } -#endif - - return 0; -} - - -/* -** GLX_MESA_swap_frame_usage -*/ - -PUBLIC GLint glXBeginFrameTrackingMESA(Display *dpy, GLXDrawable drawable) -{ - int status = GLX_BAD_CONTEXT; -#ifdef GLX_DIRECT_RENDERING - int screen; - __DRIdrawable * const pdraw = GetDRIDrawable(dpy, drawable, & screen); - __GLXscreenConfigs * const psc = GetGLXScreenConfigs(dpy, screen); - - if ( (pdraw != NULL) && (pdraw->frameTracking != NULL) - && __glXExtensionBitIsEnabled( psc, MESA_swap_frame_usage_bit ) ) { - status = pdraw->frameTracking( dpy, pdraw->private, GL_TRUE ); - } -#else - (void) dpy; - (void) drawable; -#endif - return status; -} - - -PUBLIC GLint glXEndFrameTrackingMESA(Display *dpy, GLXDrawable drawable) -{ - int status = GLX_BAD_CONTEXT; -#ifdef GLX_DIRECT_RENDERING - int screen; - __DRIdrawable * const pdraw = GetDRIDrawable(dpy, drawable, & screen); - __GLXscreenConfigs * const psc = GetGLXScreenConfigs(dpy, screen); - - if ( (pdraw != NULL) && (pdraw->frameTracking != NULL) - && __glXExtensionBitIsEnabled( psc, MESA_swap_frame_usage_bit ) ) { - status = pdraw->frameTracking( dpy, pdraw->private, GL_FALSE ); - } -#else - (void) dpy; - (void) drawable; -#endif - return status; -} - - -PUBLIC GLint glXGetFrameUsageMESA(Display *dpy, GLXDrawable drawable, - GLfloat *usage) -{ - int status = GLX_BAD_CONTEXT; -#ifdef GLX_DIRECT_RENDERING - int screen; - __DRIdrawable * const pdraw = GetDRIDrawable(dpy, drawable, & screen); - __GLXscreenConfigs * const psc = GetGLXScreenConfigs(dpy, screen); - - if ( (pdraw != NULL ) && (pdraw->queryFrameTracking != NULL) - && __glXExtensionBitIsEnabled( psc, MESA_swap_frame_usage_bit ) ) { - int64_t sbc, missedFrames; - float lastMissedUsage; - - status = pdraw->queryFrameTracking( dpy, pdraw->private, &sbc, - &missedFrames, &lastMissedUsage, - usage ); - } -#else - (void) dpy; - (void) drawable; - (void) usage; -#endif - return status; -} - - -PUBLIC GLint glXQueryFrameTrackingMESA(Display *dpy, GLXDrawable drawable, - int64_t *sbc, int64_t *missedFrames, - GLfloat *lastMissedUsage) -{ - int status = GLX_BAD_CONTEXT; -#ifdef GLX_DIRECT_RENDERING - int screen; - __DRIdrawable * const pdraw = GetDRIDrawable(dpy, drawable, & screen); - __GLXscreenConfigs * const psc = GetGLXScreenConfigs(dpy, screen); - - if ( (pdraw != NULL ) && (pdraw->queryFrameTracking != NULL) - && __glXExtensionBitIsEnabled( psc, MESA_swap_frame_usage_bit ) ) { - float usage; - - status = pdraw->queryFrameTracking( dpy, pdraw->private, sbc, - missedFrames, lastMissedUsage, - & usage ); - } -#else - (void) dpy; - (void) drawable; - (void) sbc; - (void) missedFrames; - (void) lastMissedUsage; -#endif - return status; -} - - -/* -** GLX_SGI_video_sync -*/ -PUBLIC int glXGetVideoSyncSGI(unsigned int *count) -{ - /* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry, - * FIXME: there should be a GLX encoding for this call. I can find no - * FIXME: documentation for the GLX encoding. - */ -#ifdef GLX_DIRECT_RENDERING - GLXContext gc = __glXGetCurrentContext(); - - - if ( (gc != NULL) && gc->isDirect ) { - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( gc->currentDpy, - gc->screen ); - if ( __glXExtensionBitIsEnabled( psc, SGI_video_sync_bit ) - && psc->driScreen.private && psc->driScreen.getMSC) { - int ret; - int64_t temp; - - ret = psc->driScreen.getMSC( psc->driScreen.private, & temp ); - *count = (unsigned) temp; - return (ret == 0) ? 0 : GLX_BAD_CONTEXT; - } - } -#else - (void) count; -#endif - return GLX_BAD_CONTEXT; -} - -PUBLIC int glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count) -{ -#ifdef GLX_DIRECT_RENDERING - GLXContext gc = __glXGetCurrentContext(); - - if ( divisor <= 0 || remainder < 0 ) - return GLX_BAD_VALUE; - - if ( (gc != NULL) && gc->isDirect ) { - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( gc->currentDpy, - gc->screen ); - if ( __glXExtensionBitIsEnabled( psc, SGI_video_sync_bit ) - && psc->driScreen.private ) { - __DRIdrawable * const pdraw = - (*psc->driScreen.getDrawable)(gc->currentDpy, - gc->currentDrawable, - psc->driScreen.private); - if ( (pdraw != NULL) && (pdraw->waitForMSC != NULL) ) { - int ret; - int64_t msc; - int64_t sbc; - - ret = (*pdraw->waitForMSC)( gc->currentDpy, pdraw->private, - 0, divisor, remainder, - & msc, & sbc ); - *count = (unsigned) msc; - return (ret == 0) ? 0 : GLX_BAD_CONTEXT; - } - } - } -#else - (void) count; -#endif - return GLX_BAD_CONTEXT; -} - - -/* -** GLX_SGIS_video_source -*/ -#if defined(_VL_H) - -PUBLIC GLXVideoSourceSGIX glXCreateGLXVideoSourceSGIX(Display *dpy, - int screen, VLServer server, VLPath path, - int nodeClass, VLNode drainNode) -{ - (void) dpy; - (void) screen; - (void) server; - (void) path; - (void) nodeClass; - (void) drainNode; - return 0; -} - -PUBLIC void glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src) -{ - (void) dpy; - (void) src; -} - -#endif - - -/* -** GLX_SGIX_fbconfig -** Many of these functions are aliased to GLX 1.3 entry points in the -** GLX_functions table. -*/ - -PUBLIC GLX_ALIAS(int, glXGetFBConfigAttribSGIX, - (Display *dpy, GLXFBConfigSGIX config, int attribute, int *value), - (dpy, config, attribute, value), - glXGetFBConfigAttrib) - -PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX, - (Display *dpy, int screen, int *attrib_list, int *nelements), - (dpy, screen, attrib_list, nelements), - glXChooseFBConfig) - -PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX, - (Display * dpy, GLXFBConfigSGIX config), - (dpy, config), - glXGetVisualFromFBConfig) - -PUBLIC GLXPixmap glXCreateGLXPixmapWithConfigSGIX(Display *dpy, - GLXFBConfigSGIX config, Pixmap pixmap) -{ - xGLXVendorPrivateWithReplyReq *vpreq; - xGLXCreateGLXPixmapWithConfigSGIXReq *req; - GLXPixmap xid = None; - CARD8 opcode; - const __GLcontextModes * const fbconfig = (__GLcontextModes *) config; - __GLXscreenConfigs * psc; - - - if ( (dpy == NULL) || (config == NULL) ) { - return None; - } - - psc = GetGLXScreenConfigs( dpy, fbconfig->screen ); - if ( (psc != NULL) - && __glXExtensionBitIsEnabled( psc, SGIX_fbconfig_bit ) ) { - opcode = __glXSetupForCommand(dpy); - if (!opcode) { - return None; - } - - /* Send the glXCreateGLXPixmapWithConfigSGIX request */ - LockDisplay(dpy); - GetReqExtra(GLXVendorPrivateWithReply, - sz_xGLXCreateGLXPixmapWithConfigSGIXReq-sz_xGLXVendorPrivateWithReplyReq,vpreq); - req = (xGLXCreateGLXPixmapWithConfigSGIXReq *)vpreq; - req->reqType = opcode; - req->glxCode = X_GLXVendorPrivateWithReply; - req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX; - req->screen = fbconfig->screen; - req->fbconfig = fbconfig->fbconfigID; - req->pixmap = pixmap; - req->glxpixmap = xid = XAllocID(dpy); - UnlockDisplay(dpy); - SyncHandle(); - } - - return xid; -} - -PUBLIC GLXContext glXCreateContextWithConfigSGIX(Display *dpy, - GLXFBConfigSGIX config, int renderType, - GLXContext shareList, Bool allowDirect) -{ - GLXContext gc = NULL; - const __GLcontextModes * const fbconfig = (__GLcontextModes *) config; - __GLXscreenConfigs * psc; - - - if ( (dpy == NULL) || (config == NULL) ) { - return None; - } - - psc = GetGLXScreenConfigs( dpy, fbconfig->screen ); - if ( (psc != NULL) - && __glXExtensionBitIsEnabled( psc, SGIX_fbconfig_bit ) ) { - gc = CreateContext( dpy, NULL, (__GLcontextModes *) config, shareList, - allowDirect, None, False, renderType ); - } - - return gc; -} - - -PUBLIC GLXFBConfigSGIX glXGetFBConfigFromVisualSGIX(Display *dpy, - XVisualInfo *vis) -{ - __GLXdisplayPrivate *priv; - __GLXscreenConfigs *psc; - - if ( (GetGLXPrivScreenConfig( dpy, vis->screen, & priv, & psc ) != Success) - && __glXExtensionBitIsEnabled( psc, SGIX_fbconfig_bit ) - && (psc->configs->fbconfigID != GLX_DONT_CARE) ) { - return (GLXFBConfigSGIX) _gl_context_modes_find_visual( psc->configs, - vis->visualid ); - } - - return NULL; -} - - -/* -** GLX_SGI_cushion -*/ -PUBLIC void glXCushionSGI(Display *dpy, Window win, float cushion) -{ - (void) dpy; - (void) win; - (void) cushion; -} - - -/* -** GLX_SGIX_video_resize -*/ -PUBLIC int glXBindChannelToWindowSGIX(Display *dpy, int screen, - int channel , Window window) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) window; - return 0; -} - -PUBLIC int glXChannelRectSGIX(Display *dpy, int screen, int channel, - int x, int y, int w, int h) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) x; - (void) y; - (void) w; - (void) h; - return 0; -} - -PUBLIC int glXQueryChannelRectSGIX(Display *dpy, int screen, int channel, - int *x, int *y, int *w, int *h) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) x; - (void) y; - (void) w; - (void) h; - return 0; -} - -int glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel, - int *dx, int *dy, int *dw, int *dh) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) dx; - (void) dy; - (void) dw; - (void) dh; - return 0; -} - -PUBLIC int glXChannelRectSyncSGIX(Display *dpy, int screen, - int channel, GLenum synctype) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) synctype; - return 0; -} - - -#if defined(_DM_BUFFER_H_) - -PUBLIC Bool glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer, - DMparams *params, DMbuffer dmbuffer) -{ - (void) dpy; - (void) pbuffer; - (void) params; - (void) dmbuffer; - return False; -} - -#endif - - -/* -** GLX_SGIX_swap_group -*/ -PUBLIC void glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, - GLXDrawable member) -{ - (void) dpy; - (void) drawable; - (void) member; -} - - -/* -** GLX_SGIX_swap_barrier -*/ -PUBLIC void glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, - int barrier) -{ - (void) dpy; - (void) drawable; - (void) barrier; -} - -PUBLIC Bool glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max) -{ - (void) dpy; - (void) screen; - (void) max; - return False; -} - - -/* -** GLX_SUN_get_transparent_index -*/ -PUBLIC Status glXGetTransparentIndexSUN(Display *dpy, Window overlay, - Window underlay, long *pTransparent) -{ - (void) dpy; - (void) overlay; - (void) underlay; - (void) pTransparent; - return 0; -} - - -/* -** GLX_OML_sync_control -*/ -PUBLIC Bool glXGetSyncValuesOML(Display *dpy, GLXDrawable drawable, - int64_t *ust, int64_t *msc, int64_t *sbc) -{ -#ifdef GLX_DIRECT_RENDERING - __GLXdisplayPrivate * const priv = __glXInitialize(dpy); - - if ( priv != NULL ) { - int i; - __DRIdrawable * const pdraw = GetDRIDrawable( dpy, drawable, & i ); - __GLXscreenConfigs * const psc = &priv->screenConfigs[i]; - - assert( (pdraw == NULL) || (i != -1) ); - return ( (pdraw && pdraw->getSBC && psc->driScreen.getMSC) - && __glXExtensionBitIsEnabled( psc, OML_sync_control_bit ) - && ((*psc->driScreen.getMSC)( psc->driScreen.private, msc ) == 0) - && ((*pdraw->getSBC)( dpy, psc->driScreen.private, sbc ) == 0) - && (__glXGetUST( ust ) == 0) ); - } -#else - (void) dpy; - (void) drawable; - (void) ust; - (void) msc; - (void) sbc; -#endif - return False; -} - - -/** - * Determine the refresh rate of the specified drawable and display. - * - * \param dpy Display whose refresh rate is to be determined. - * \param drawable Drawable whose refresh rate is to be determined. - * \param numerator Numerator of the refresh rate. - * \param demoninator Denominator of the refresh rate. - * \return If the refresh rate for the specified display and drawable could - * be calculated, True is returned. Otherwise False is returned. - * - * \note This function is implemented entirely client-side. A lot of other - * functionality is required to export GLX_OML_sync_control, so on - * XFree86 this function can be called for direct-rendering contexts - * when GLX_OML_sync_control appears in the client extension string. - */ - -PUBLIC Bool glXGetMscRateOML(Display * dpy, GLXDrawable drawable, - int32_t * numerator, int32_t * denominator) -{ -#if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE ) - __GLXdisplayPrivate * const priv = __glXInitialize(dpy); - - - if ( priv != NULL ) { - XF86VidModeModeLine mode_line; - int dot_clock; - int screen_num; - int i; - - - GetDRIDrawable( dpy, drawable, & screen_num ); - if ( (screen_num != -1) - && XF86VidModeQueryVersion( dpy, & i, & i ) - && XF86VidModeGetModeLine( dpy, screen_num, & dot_clock, - & mode_line ) ) { - unsigned n = dot_clock * 1000; - unsigned d = mode_line.vtotal * mode_line.htotal; - -# define V_INTERLACE 0x010 -# define V_DBLSCAN 0x020 - - if ( (mode_line.flags & V_INTERLACE) ) { - n *= 2; - } - else if ( (mode_line.flags & V_DBLSCAN) ) { - d *= 2; - } - - /* The OML_sync_control spec requires that if the refresh rate is a - * whole number, that the returned numerator be equal to the refresh - * rate and the denominator be 1. - */ - - if ( (n % d) == 0 ) { - n /= d; - d = 1; - } - else { - static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 }; - - - /* This is a poor man's way to reduce a fraction. It's far from - * perfect, but it will work well enough for this situation. - */ - - for ( i = 0 ; f[i] != 0 ; i++ ) { - while ( ((n % f[i]) == 0) && ((d % f[i]) == 0) ) { - d /= f[i]; - n /= f[i]; - } - } - } - - *numerator = n; - *denominator = d; - - (void) drawable; - return True; - } - } -#else - (void) dpy; - (void) drawable; - (void) numerator; - (void) denominator; -#endif - return False; -} - - -PUBLIC int64_t glXSwapBuffersMscOML(Display *dpy, GLXDrawable drawable, - int64_t target_msc, int64_t divisor, - int64_t remainder) -{ -#ifdef GLX_DIRECT_RENDERING - int screen; - __DRIdrawable *pdraw = GetDRIDrawable( dpy, drawable, & screen ); - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, screen ); - - /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE - * error", but it also says "It [glXSwapBuffersMscOML] will return a value - * of -1 if the function failed because of errors detected in the input - * parameters" - */ - if ( divisor < 0 || remainder < 0 || target_msc < 0 ) - return -1; - if ( divisor > 0 && remainder >= divisor ) - return -1; - - if ( (pdraw != NULL) && (pdraw->swapBuffersMSC != NULL) - && __glXExtensionBitIsEnabled( psc, OML_sync_control_bit ) ) { - return (*pdraw->swapBuffersMSC)(dpy, pdraw->private, target_msc, - divisor, remainder); - } -#else - (void) dpy; - (void) drawable; - (void) target_msc; - (void) divisor; - (void) remainder; -#endif - return 0; -} - - -PUBLIC Bool glXWaitForMscOML(Display * dpy, GLXDrawable drawable, - int64_t target_msc, int64_t divisor, - int64_t remainder, int64_t *ust, - int64_t *msc, int64_t *sbc) -{ -#ifdef GLX_DIRECT_RENDERING - int screen; - __DRIdrawable *pdraw = GetDRIDrawable( dpy, drawable, & screen ); - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, screen ); - int ret; - - /* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE - * error", but the return type in the spec is Bool. - */ - if ( divisor < 0 || remainder < 0 || target_msc < 0 ) - return False; - if ( divisor > 0 && remainder >= divisor ) - return False; - - if ( (pdraw != NULL) && (pdraw->waitForMSC != NULL) - && __glXExtensionBitIsEnabled( psc, OML_sync_control_bit ) ) { - ret = (*pdraw->waitForMSC)( dpy, pdraw->private, target_msc, - divisor, remainder, msc, sbc ); - - /* __glXGetUST returns zero on success and non-zero on failure. - * This function returns True on success and False on failure. - */ - return ( (ret == 0) && (__glXGetUST( ust ) == 0) ); - } -#else - (void) dpy; - (void) drawable; - (void) target_msc; - (void) divisor; - (void) remainder; - (void) ust; - (void) msc; - (void) sbc; -#endif - return False; -} - - -PUBLIC Bool glXWaitForSbcOML(Display * dpy, GLXDrawable drawable, - int64_t target_sbc, int64_t *ust, - int64_t *msc, int64_t *sbc ) -{ -#ifdef GLX_DIRECT_RENDERING - int screen; - __DRIdrawable *pdraw = GetDRIDrawable( dpy, drawable, & screen ); - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, screen ); - int ret; - - /* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE - * error", but the return type in the spec is Bool. - */ - if ( target_sbc < 0 ) - return False; - - if ( (pdraw != NULL) && (pdraw->waitForSBC != NULL) - && __glXExtensionBitIsEnabled( psc, OML_sync_control_bit )) { - ret = (*pdraw->waitForSBC)( dpy, pdraw->private, target_sbc, msc, sbc ); - - /* __glXGetUST returns zero on success and non-zero on failure. - * This function returns True on success and False on failure. - */ - return( (ret == 0) && (__glXGetUST( ust ) == 0) ); - } -#else - (void) dpy; - (void) drawable; - (void) target_sbc; - (void) ust; - (void) msc; - (void) sbc; -#endif - return False; -} - - -/** - * GLX_MESA_allocate_memory - */ -/*@{*/ - -PUBLIC void *glXAllocateMemoryMESA(Display *dpy, int scrn, - size_t size, float readFreq, - float writeFreq, float priority) -{ -#ifdef GLX_DIRECT_RENDERING - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, scrn ); - - if ( __glXExtensionBitIsEnabled( psc, MESA_allocate_memory_bit ) ) { - if (psc && psc->driScreen.private && psc->driScreen.allocateMemory) { - return (*psc->driScreen.allocateMemory)( dpy, scrn, size, - readFreq, writeFreq, - priority ); - } - } -#else - (void) dpy; - (void) scrn; - (void) size; - (void) readFreq; - (void) writeFreq; - (void) priority; -#endif /* GLX_DIRECT_RENDERING */ - - return NULL; -} - - -PUBLIC void glXFreeMemoryMESA(Display *dpy, int scrn, void *pointer) -{ -#ifdef GLX_DIRECT_RENDERING - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, scrn ); - - if ( __glXExtensionBitIsEnabled( psc, MESA_allocate_memory_bit ) ) { - if (psc && psc->driScreen.private && psc->driScreen.freeMemory) { - (*psc->driScreen.freeMemory)( dpy, scrn, pointer ); - } - } -#else - (void) dpy; - (void) scrn; - (void) pointer; -#endif /* GLX_DIRECT_RENDERING */ -} - - -PUBLIC GLuint glXGetMemoryOffsetMESA( Display *dpy, int scrn, - const void *pointer ) -{ -#ifdef GLX_DIRECT_RENDERING - __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, scrn ); - - if ( __glXExtensionBitIsEnabled( psc, MESA_allocate_memory_bit ) ) { - if (psc && psc->driScreen.private && psc->driScreen.memoryOffset) { - return (*psc->driScreen.memoryOffset)( dpy, scrn, pointer ); - } - } -#else - (void) dpy; - (void) scrn; - (void) pointer; -#endif /* GLX_DIRECT_RENDERING */ - - return ~0L; -} -/*@}*/ - - -/** - * Mesa extension stubs. These will help reduce portability problems. - */ -/*@{*/ - -/** - * Release all buffers associated with the specified GLX drawable. - * - * \todo - * This function was intended for stand-alone Mesa. The issue there is that - * the library doesn't get any notification when a window is closed. In - * DRI there is a similar but slightly different issue. When GLX 1.3 is - * supported, there are 3 different functions to destroy a drawable. It - * should be possible to create GLX protocol (or have it determine which - * protocol to use based on the type of the drawable) to have one function - * do the work of 3. For the direct-rendering case, this function could - * just call the driver's \c __DRIdrawableRec::destroyDrawable function. - * This would reduce the frequency with which \c __driGarbageCollectDrawables - * would need to be used. This really should be done as part of the new DRI - * interface work. - * - * \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt - * __driGarbageCollectDrawables - * glXDestroyGLXPixmap - * glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow - * glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX - */ -PUBLIC Bool glXReleaseBuffersMESA( Display *dpy, GLXDrawable d ) -{ - (void) dpy; - (void) d; - return False; -} - - -PUBLIC GLXPixmap glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visual, - Pixmap pixmap, Colormap cmap ) -{ - (void) dpy; - (void) visual; - (void) pixmap; - (void) cmap; - return 0; -} - - -PUBLIC void glXCopySubBufferMESA(Display *dpy, GLXDrawable drawable, - int x, int y, int width, int height) -{ - (void) dpy; - (void) drawable; - (void) x; - (void) y; - (void) width; - (void) height; -} - - -PUBLIC Bool glXSet3DfxModeMESA( int mode ) -{ - (void) mode; - return GL_FALSE; -} -/*@}*/ - - - -/** - * \c strdup is actually not a standard ANSI C or POSIX routine. - * Irix will not define it if ANSI mode is in effect. - * - * \sa strdup - */ -char * -__glXstrdup(const char *str) -{ - char *copy; - copy = (char *) Xmalloc(strlen(str) + 1); - if (!copy) - return NULL; - strcpy(copy, str); - return copy; -} - -/* -** glXGetProcAddress support -*/ - -struct name_address_pair { - const char *Name; - GLvoid *Address; -}; - -#define GLX_FUNCTION(f) { # f, (GLvoid *) f } -#define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f } - -static const struct name_address_pair GLX_functions[] = { - /*** GLX_VERSION_1_0 ***/ - GLX_FUNCTION( glXChooseVisual ), - GLX_FUNCTION( glXCopyContext ), - GLX_FUNCTION( glXCreateContext ), - GLX_FUNCTION( glXCreateGLXPixmap ), - GLX_FUNCTION( glXDestroyContext ), - GLX_FUNCTION( glXDestroyGLXPixmap ), - GLX_FUNCTION( glXGetConfig ), - GLX_FUNCTION( glXGetCurrentContext ), - GLX_FUNCTION( glXGetCurrentDrawable ), - GLX_FUNCTION( glXIsDirect ), - GLX_FUNCTION( glXMakeCurrent ), - GLX_FUNCTION( glXQueryExtension ), - GLX_FUNCTION( glXQueryVersion ), - GLX_FUNCTION( glXSwapBuffers ), - GLX_FUNCTION( glXUseXFont ), - GLX_FUNCTION( glXWaitGL ), - GLX_FUNCTION( glXWaitX ), - - /*** GLX_VERSION_1_1 ***/ - GLX_FUNCTION( glXGetClientString ), - GLX_FUNCTION( glXQueryExtensionsString ), - GLX_FUNCTION( glXQueryServerString ), - - /*** GLX_VERSION_1_2 ***/ - GLX_FUNCTION( glXGetCurrentDisplay ), - - /*** GLX_VERSION_1_3 ***/ - GLX_FUNCTION( glXChooseFBConfig ), - GLX_FUNCTION( glXCreateNewContext ), - GLX_FUNCTION( glXCreatePbuffer ), - GLX_FUNCTION( glXCreatePixmap ), - GLX_FUNCTION( glXCreateWindow ), - GLX_FUNCTION( glXDestroyPbuffer ), - GLX_FUNCTION( glXDestroyPixmap ), - GLX_FUNCTION( glXDestroyWindow ), - GLX_FUNCTION( glXGetCurrentReadDrawable ), - GLX_FUNCTION( glXGetFBConfigAttrib ), - GLX_FUNCTION( glXGetFBConfigs ), - GLX_FUNCTION( glXGetSelectedEvent ), - GLX_FUNCTION( glXGetVisualFromFBConfig ), - GLX_FUNCTION( glXMakeContextCurrent ), - GLX_FUNCTION( glXQueryContext ), - GLX_FUNCTION( glXQueryDrawable ), - GLX_FUNCTION( glXSelectEvent ), - - /*** GLX_SGI_swap_control ***/ - GLX_FUNCTION( glXSwapIntervalSGI ), - - /*** GLX_SGI_video_sync ***/ - GLX_FUNCTION( glXGetVideoSyncSGI ), - GLX_FUNCTION( glXWaitVideoSyncSGI ), - - /*** GLX_SGI_make_current_read ***/ - GLX_FUNCTION2( glXMakeCurrentReadSGI, glXMakeContextCurrent ), - GLX_FUNCTION2( glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable ), - - /*** GLX_SGIX_video_source ***/ -#if defined(_VL_H) - GLX_FUNCTION( glXCreateGLXVideoSourceSGIX ), - GLX_FUNCTION( glXDestroyGLXVideoSourceSGIX ), -#endif - - /*** GLX_EXT_import_context ***/ - GLX_FUNCTION( glXFreeContextEXT ), - GLX_FUNCTION( glXGetContextIDEXT ), - GLX_FUNCTION2( glXGetCurrentDisplayEXT, glXGetCurrentDisplay ), - GLX_FUNCTION( glXImportContextEXT ), - GLX_FUNCTION2( glXQueryContextInfoEXT, glXQueryContext ), - - /*** GLX_SGIX_fbconfig ***/ - GLX_FUNCTION2( glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib ), - GLX_FUNCTION2( glXChooseFBConfigSGIX, glXChooseFBConfig ), - GLX_FUNCTION( glXCreateGLXPixmapWithConfigSGIX ), - GLX_FUNCTION( glXCreateContextWithConfigSGIX ), - GLX_FUNCTION2( glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig ), - GLX_FUNCTION( glXGetFBConfigFromVisualSGIX ), - - /*** GLX_SGIX_pbuffer ***/ - GLX_FUNCTION( glXCreateGLXPbufferSGIX ), - GLX_FUNCTION( glXDestroyGLXPbufferSGIX ), - GLX_FUNCTION( glXQueryGLXPbufferSGIX ), - GLX_FUNCTION( glXSelectEventSGIX ), - GLX_FUNCTION( glXGetSelectedEventSGIX ), - - /*** GLX_SGI_cushion ***/ - GLX_FUNCTION( glXCushionSGI ), - - /*** GLX_SGIX_video_resize ***/ - GLX_FUNCTION( glXBindChannelToWindowSGIX ), - GLX_FUNCTION( glXChannelRectSGIX ), - GLX_FUNCTION( glXQueryChannelRectSGIX ), - GLX_FUNCTION( glXQueryChannelDeltasSGIX ), - GLX_FUNCTION( glXChannelRectSyncSGIX ), - - /*** GLX_SGIX_dmbuffer **/ -#if defined(_DM_BUFFER_H_) - GLX_FUNCTION( glXAssociateDMPbufferSGIX ), -#endif - - /*** GLX_SGIX_swap_group ***/ - GLX_FUNCTION( glXJoinSwapGroupSGIX ), - - /*** GLX_SGIX_swap_barrier ***/ - GLX_FUNCTION( glXBindSwapBarrierSGIX ), - GLX_FUNCTION( glXQueryMaxSwapBarriersSGIX ), - - /*** GLX_SUN_get_transparent_index ***/ - GLX_FUNCTION( glXGetTransparentIndexSUN ), - - /*** GLX_MESA_allocate_memory ***/ - GLX_FUNCTION( glXAllocateMemoryMESA ), - GLX_FUNCTION( glXFreeMemoryMESA ), - GLX_FUNCTION( glXGetMemoryOffsetMESA ), - - /*** GLX_MESA_copy_sub_buffer ***/ - GLX_FUNCTION( glXCopySubBufferMESA ), - - /*** GLX_MESA_pixmap_colormap ***/ - GLX_FUNCTION( glXCreateGLXPixmapMESA ), - - /*** GLX_MESA_release_buffers ***/ - GLX_FUNCTION( glXReleaseBuffersMESA ), - - /*** GLX_MESA_set_3dfx_mode ***/ - GLX_FUNCTION( glXSet3DfxModeMESA ), - - /*** GLX_MESA_swap_control ***/ - GLX_FUNCTION( glXSwapIntervalMESA ), - GLX_FUNCTION( glXGetSwapIntervalMESA ), - - /*** GLX_MESA_swap_frame_usage ***/ - GLX_FUNCTION( glXBeginFrameTrackingMESA ), - GLX_FUNCTION( glXEndFrameTrackingMESA ), - GLX_FUNCTION( glXGetFrameUsageMESA ), - GLX_FUNCTION( glXQueryFrameTrackingMESA ), - - /*** GLX_ARB_get_proc_address ***/ - GLX_FUNCTION( glXGetProcAddressARB ), - - /*** GLX 1.4 ***/ - GLX_FUNCTION2( glXGetProcAddress, glXGetProcAddressARB ), - - /*** GLX_OML_sync_control ***/ - GLX_FUNCTION( glXWaitForSbcOML ), - GLX_FUNCTION( glXWaitForMscOML ), - GLX_FUNCTION( glXSwapBuffersMscOML ), - GLX_FUNCTION( glXGetMscRateOML ), - GLX_FUNCTION( glXGetSyncValuesOML ), - -#ifdef GLX_DIRECT_RENDERING - /*** DRI configuration ***/ - GLX_FUNCTION( glXGetScreenDriver ), - GLX_FUNCTION( glXGetDriverConfig ), -#endif - - { NULL, NULL } /* end of list */ -}; - - -static const GLvoid * -get_glx_proc_address(const char *funcName) -{ - GLuint i; - - /* try static functions */ - for (i = 0; GLX_functions[i].Name; i++) { - if (strcmp(GLX_functions[i].Name, funcName) == 0) - return GLX_functions[i].Address; - } - - return NULL; -} - - -/** - * Get the address of a named GL function. This is the pre-GLX 1.4 name for - * \c glXGetProcAddress. - * - * \param procName Name of a GL or GLX function. - * \returns A pointer to the named function - * - * \sa glXGetProcAddress - */ -PUBLIC void (*glXGetProcAddressARB(const GLubyte *procName))( void ) -{ - typedef void (*gl_function)( void ); - gl_function f; - - - /* Search the table of GLX and internal functions first. If that - * fails and the supplied name could be a valid core GL name, try - * searching the core GL function table. This check is done to prevent - * DRI based drivers from searching the core GL function table for - * internal API functions. - */ - - f = (gl_function) get_glx_proc_address((const char *) procName); - if ( (f == NULL) && (procName[0] == 'g') && (procName[1] == 'l') - && (procName[2] != 'X') ) { - f = (gl_function) _glapi_get_proc_address((const char *) procName); - } - - return f; -} - -/** - * Get the address of a named GL function. This is the GLX 1.4 name for - * \c glXGetProcAddressARB. - * - * \param procName Name of a GL or GLX function. - * \returns A pointer to the named function - * - * \sa glXGetProcAddressARB - */ -PUBLIC void (*glXGetProcAddress(const GLubyte *procName))( void ) -#if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED) - __attribute__ ((alias ("glXGetProcAddressARB"))); -#else -{ - return glXGetProcAddressARB(procName); -} -#endif /* __GNUC__ */ - - -#ifdef GLX_DIRECT_RENDERING -/** - * Retrieves the verion of the internal libGL API in YYYYMMDD format. This - * might be used by the DRI drivers to determine how new libGL is at runtime. - * Drivers should not call this function directly. They should instead use - * \c glXGetProcAddress to obtain a pointer to the function. - * - * \returns An 8-digit decimal number representing the internal libGL API in - * YYYYMMDD format. - * - * \sa glXGetProcAddress, PFNGLXGETINTERNALVERSIONPROC - * - * \since Internal API version 20021121. - */ -int __glXGetInternalVersion(void) -{ - /* History: - * 20021121 - Initial version - * 20021128 - Added __glXWindowExists() function - * 20021207 - Added support for dynamic GLX extensions, - * GLX_SGI_swap_control, GLX_SGI_video_sync, - * GLX_OML_sync_control, and GLX_MESA_swap_control. - * Never officially released. Do NOT test against - * this version. Use 20030317 instead. - * 20030317 - Added support GLX_SGIX_fbconfig, - * GLX_MESA_swap_frame_usage, GLX_OML_swap_method, - * GLX_{ARB,SGIS}_multisample, and - * GLX_SGIX_visual_select_group. - * 20030606 - Added support for GLX_SGI_make_current_read. - * 20030813 - Made support for dynamic extensions multi-head aware. - * 20030818 - Added support for GLX_MESA_allocate_memory in place of the - * deprecated GLX_NV_vertex_array_range & GLX_MESA_agp_offset - * interfaces. - * 20031201 - Added support for the first round of DRI interface changes. - * Do NOT test against this version! It has binary - * compatibility bugs, use 20040317 instead. - * 20040317 - Added the 'mode' field to __DRIcontextRec. - * 20040415 - Added support for bindContext3 and unbindContext3. - * 20040602 - Add __glXGetDrawableInfo. I though that was there - * months ago. :( - * 20050727 - Gut all the old interfaces. This breaks compatability with - * any DRI driver built to any previous version. - */ - return 20050727; -} - - - -static Bool windowExistsFlag; - -static int windowExistsErrorHandler(Display *dpy, XErrorEvent *xerr) -{ - if (xerr->error_code == BadWindow) { - windowExistsFlag = GL_FALSE; - } - return 0; -} - -/** - * Determine if a window associated with a \c GLXDrawable exists on the - * X-server. This function is not used internally by libGL. It is provided - * as a utility function for DRI drivers. - * Drivers should not call this function directly. They should instead use - * \c glXGetProcAddress to obtain a pointer to the function. - * - * \param dpy Display associated with the drawable to be queried. - * \param draw \c GLXDrawable to test. - * - * \returns \c GL_TRUE if a window exists that is associated with \c draw, - * otherwise \c GL_FALSE is returned. - * - * \warning This function is not currently thread-safe. - * - * \sa glXGetProcAddress - * - * \since Internal API version 20021128. - */ -Bool __glXWindowExists(Display *dpy, GLXDrawable draw) -{ - XWindowAttributes xwa; - int (*oldXErrorHandler)(Display *, XErrorEvent *); - - XSync(dpy, GL_FALSE); - windowExistsFlag = GL_TRUE; - oldXErrorHandler = XSetErrorHandler(windowExistsErrorHandler); - XGetWindowAttributes(dpy, draw, &xwa); /* dummy request */ - XSetErrorHandler(oldXErrorHandler); - return windowExistsFlag; -} - - -/** - * Get the unadjusted system time (UST). Currently, the UST is measured in - * microseconds since Epoc. The actual resolution of the UST may vary from - * system to system, and the units may vary from release to release. - * Drivers should not call this function directly. They should instead use - * \c glXGetProcAddress to obtain a pointer to the function. - * - * \param ust Location to store the 64-bit UST - * \returns Zero on success or a negative errno value on failure. - * - * \sa glXGetProcAddress, PFNGLXGETUSTPROC - * - * \since Internal API version 20030317. - */ -int __glXGetUST( int64_t * ust ) -{ - struct timeval tv; - - if ( ust == NULL ) { - return -EFAULT; - } - - if ( gettimeofday( & tv, NULL ) == 0 ) { - ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec; - return 0; - } else { - return -errno; - } -} -#endif /* GLX_DIRECT_RENDERING */ |