/* $Id: glxapi.c,v 1.28 2001/09/14 02:43:03 brianp Exp $ */ /* * Mesa 3-D graphics library * Version: 3.5 * * Copyright (C) 1999-2001 Brian Paul 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 and this permission notice 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 * BRIAN PAUL 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. */ /* * This is the GLX API dispatcher. Calls to the glX* functions are * either routed to the real GLX encoders or to Mesa's pseudo-GLX functions. */ #include <assert.h> #include <stdlib.h> #include <stdio.h> #include <string.h> /*#include <dlfcn.h>*/ /* XXX not portable? */ #include "glapi.h" #include "glxapi.h" extern struct _glxapi_table *_real_GetGLXDispatchTable(void); extern struct _glxapi_table *_mesa_GetGLXDispatchTable(void); struct display_dispatch { Display *Dpy; struct _glxapi_table *Table; struct display_dispatch *Next; }; static struct display_dispatch *DispatchList = NULL; /* Display -> Dispatch caching */ static Display *prevDisplay = NULL; static struct _glxapi_table *prevTable = NULL; static struct _glxapi_table * get_dispatch(Display *dpy) { if (!dpy) return NULL; /* search list of display/dispatch pairs for this display */ { const struct display_dispatch *d = DispatchList; while (d) { if (d->Dpy == dpy) { prevDisplay = dpy; prevTable = d->Table; return d->Table; /* done! */ } d = d->Next; } } /* A new display, determine if we should use real GLX * or Mesa's pseudo-GLX. */ { struct _glxapi_table *t = NULL; #ifdef GLX_BUILT_IN_XMESA if (!getenv("LIBGL_FORCE_XMESA")) { int ignore; if (XQueryExtension( dpy, "GLX", &ignore, &ignore, &ignore )) { /* the X server has the GLX extension */ t = _real_GetGLXDispatchTable(); } } #endif if (!t) { /* Fallback to Mesa with Xlib driver */ #ifdef GLX_BUILT_IN_XMESA if (getenv("LIBGL_DEBUG")) { fprintf(stderr, "libGL: server %s lacks the GLX extension.", dpy->display_name); fprintf(stderr, " Using Mesa Xlib renderer.\n"); } #endif t = _mesa_GetGLXDispatchTable(); assert(t); /* this has to work */ } if (t) { struct display_dispatch *d; d = (struct display_dispatch *) malloc(sizeof(struct display_dispatch)); if (d) { d->Dpy = dpy; d->Table = t; /* insert at head of list */ d->Next = DispatchList; DispatchList = d; /* update cache */ prevDisplay = dpy; prevTable = t; return t; } } } /* If we get here that means we can't use real GLX on this display * and the Mesa pseudo-GLX software renderer wasn't compiled in. * Or, we ran out of memory! */ return NULL; } #define GET_DISPATCH(DPY, TABLE) \ if (DPY == prevDisplay) { \ TABLE = prevTable; \ } \ else if (!DPY) { \ TABLE = NULL; \ } \ else { \ TABLE = get_dispatch(DPY); \ } /* Set by glXMakeCurrent() and glXMakeContextCurrent() only */ #ifndef GLX_BUILT_IN_XMESA static GLXContext CurrentContext = 0; #define __glXGetCurrentContext() CurrentContext; #endif /* * GLX API entrypoints */ /*** GLX_VERSION_1_0 ***/ XVisualInfo *glXChooseVisual(Display *dpy, int screen, int *list) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return NULL; return (t->ChooseVisual)(dpy, screen, list); } void glXCopyContext(Display *dpy, GLXContext src, GLXContext dst, unsigned long mask) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->CopyContext)(dpy, src, dst, mask); } GLXContext glXCreateContext(Display *dpy, XVisualInfo *visinfo, GLXContext shareList, Bool direct) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateContext)(dpy, visinfo, shareList, direct); } GLXPixmap glXCreateGLXPixmap(Display *dpy, XVisualInfo *visinfo, Pixmap pixmap) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateGLXPixmap)(dpy, visinfo, pixmap); } void glXDestroyContext(Display *dpy, GLXContext ctx) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->DestroyContext)(dpy, ctx); } void glXDestroyGLXPixmap(Display *dpy, GLXPixmap pixmap) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->DestroyGLXPixmap)(dpy, pixmap); } int glXGetConfig(Display *dpy, XVisualInfo *visinfo, int attrib, int *value) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return GLX_NO_EXTENSION; return (t->GetConfig)(dpy, visinfo, attrib, value); } #ifdef GLX_BUILT_IN_XMESA /* Use real libGL's glXGetCurrentContext() function */ #else /* stand-alone Mesa */ GLXContext glXGetCurrentContext(void) { return CurrentContext; } #endif #ifdef GLX_BUILT_IN_XMESA /* Use real libGL's glXGetCurrentContext() function */ #else /* stand-alone Mesa */ GLXDrawable glXGetCurrentDrawable(void) { __GLXcontext *gc = (__GLXcontext *) glXGetCurrentContext(); return gc ? gc->currentDrawable : 0; } #endif Bool glXIsDirect(Display *dpy, GLXContext ctx) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; return (t->IsDirect)(dpy, ctx); } Bool glXMakeCurrent(Display *dpy, GLXDrawable drawable, GLXContext ctx) { Bool b; struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) { return False; } b = (*t->MakeCurrent)(dpy, drawable, ctx); #ifndef GLX_BUILT_IN_XMESA if (b) { CurrentContext = ctx; } #endif return b; } Bool glXQueryExtension(Display *dpy, int *errorb, int *event) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; return (t->QueryExtension)(dpy, errorb, event); } Bool glXQueryVersion(Display *dpy, int *maj, int *min) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; return (t->QueryVersion)(dpy, maj, min); } void glXSwapBuffers(Display *dpy, GLXDrawable drawable) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->SwapBuffers)(dpy, drawable); } void glXUseXFont(Font font, int first, int count, int listBase) { struct _glxapi_table *t; Display *dpy = glXGetCurrentDisplay(); GET_DISPATCH(dpy, t); if (!t) return; (t->UseXFont)(font, first, count, listBase); } void glXWaitGL(void) { struct _glxapi_table *t; Display *dpy = glXGetCurrentDisplay(); GET_DISPATCH(dpy, t); if (!t) return; (t->WaitGL)(); } void glXWaitX(void) { struct _glxapi_table *t; Display *dpy = glXGetCurrentDisplay(); GET_DISPATCH(dpy, t); if (!t) return; (t->WaitX)(); } /*** GLX_VERSION_1_1 ***/ const char *glXGetClientString(Display *dpy, int name) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return NULL; return (t->GetClientString)(dpy, name); } const char *glXQueryExtensionsString(Display *dpy, int screen) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return NULL; return (t->QueryExtensionsString)(dpy, screen); } const char *glXQueryServerString(Display *dpy, int screen, int name) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return NULL; return (t->QueryServerString)(dpy, screen, name); } /*** GLX_VERSION_1_2 ***/ #if !defined(GLX_BUILT_IN_XMESA) Display *glXGetCurrentDisplay(void) { /* Same code as in libGL's glxext.c */ __GLXcontext *gc = (__GLXcontext *) glXGetCurrentContext(); if (NULL == gc) return NULL; return gc->currentDpy; } #endif /*** GLX_VERSION_1_3 ***/ GLXFBConfig *glXChooseFBConfig(Display *dpy, int screen, const int *attribList, int *nitems) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->ChooseFBConfig)(dpy, screen, attribList, nitems); } GLXContext glXCreateNewContext(Display *dpy, GLXFBConfig config, int renderType, GLXContext shareList, Bool direct) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateNewContext)(dpy, config, renderType, shareList, direct); } GLXPbuffer glXCreatePbuffer(Display *dpy, GLXFBConfig config, const int *attribList) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreatePbuffer)(dpy, config, attribList); } GLXPixmap glXCreatePixmap(Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attribList) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreatePixmap)(dpy, config, pixmap, attribList); } GLXWindow glXCreateWindow(Display *dpy, GLXFBConfig config, Window win, const int *attribList) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateWindow)(dpy, config, win, attribList); } void glXDestroyPbuffer(Display *dpy, GLXPbuffer pbuf) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->DestroyPbuffer)(dpy, pbuf); } void glXDestroyPixmap(Display *dpy, GLXPixmap pixmap) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->DestroyPixmap)(dpy, pixmap); } void glXDestroyWindow(Display *dpy, GLXWindow window) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->DestroyWindow)(dpy, window); } #ifdef GLX_BUILT_IN_XMESA /* Use the glXGetCurrentReadDrawable() function from libGL */ #else GLXDrawable glXGetCurrentReadDrawable(void) { __GLXcontext *gc = (__GLXcontext *) glXGetCurrentContext(); return gc ? gc->currentReadable : 0; } #endif int glXGetFBConfigAttrib(Display *dpy, GLXFBConfig config, int attribute, int *value) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return GLX_NO_EXTENSION; return (t->GetFBConfigAttrib)(dpy, config, attribute, value); } GLXFBConfig *glXGetFBConfigs(Display *dpy, int screen, int *nelements) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->GetFBConfigs)(dpy, screen, nelements); } void glXGetSelectedEvent(Display *dpy, GLXDrawable drawable, unsigned long *mask) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->GetSelectedEvent)(dpy, drawable, mask); } XVisualInfo *glXGetVisualFromFBConfig(Display *dpy, GLXFBConfig config) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return NULL; return (t->GetVisualFromFBConfig)(dpy, config); } Bool glXMakeContextCurrent(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx) { Bool b; struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; b = (t->MakeContextCurrent)(dpy, draw, read, ctx); #ifndef GLX_BUILT_IN_XMESA if (b) { CurrentContext = ctx; } #endif return b; } int glXQueryContext(Display *dpy, GLXContext ctx, int attribute, int *value) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); assert(t); if (!t) return 0; /* XXX correct? */ return (t->QueryContext)(dpy, ctx, attribute, value); } void glXQueryDrawable(Display *dpy, GLXDrawable draw, int attribute, unsigned int *value) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->QueryDrawable)(dpy, draw, attribute, value); } void glXSelectEvent(Display *dpy, GLXDrawable drawable, unsigned long mask) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->SelectEvent)(dpy, drawable, mask); } /*** GLX_SGI_swap_control ***/ int glXSwapIntervalSGI(int interval) { struct _glxapi_table *t; Display *dpy = glXGetCurrentDisplay(); GET_DISPATCH(dpy, t); if (!t) return 0; return (t->SwapIntervalSGI)(interval); } /*** GLX_SGI_video_sync ***/ int glXGetVideoSyncSGI(unsigned int *count) { struct _glxapi_table *t; Display *dpy = glXGetCurrentDisplay(); GET_DISPATCH(dpy, t); if (!t) return 0; return (t->GetVideoSyncSGI)(count); } int glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count) { struct _glxapi_table *t; Display *dpy = glXGetCurrentDisplay(); GET_DISPATCH(dpy, t); if (!t) return 0; return (t->WaitVideoSyncSGI)(divisor, remainder, count); } /*** GLX_SGI_make_current_read ***/ Bool glXMakeCurrentReadSGI(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->MakeCurrentReadSGI)(dpy, draw, read, ctx); } #ifdef GLX_BUILT_IN_XMESA /* Use glXGetCurrentReadDrawableSGI() from libGL */ #else /* stand-alone Mesa */ GLXDrawable glXGetCurrentReadDrawableSGI(void) { return glXGetCurrentReadDrawable(); } #endif #if defined(_VL_H) GLXVideoSourceSGIX glXCreateGLXVideoSourceSGIX(Display *dpy, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateGLXVideoSourceSGIX)(dpy, screen, server, path, nodeClass, drainNode); } void glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->DestroyGLXVideoSourceSGIX)(dpy, src); } #endif /*** GLX_EXT_import_context ***/ void glXFreeContextEXT(Display *dpy, GLXContext context) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->FreeContextEXT)(dpy, context); } #ifdef GLX_BUILT_IN_XMESA /* Use real libGL's glXGetContextIDEXT() function */ #else /* stand-alone Mesa */ GLXContextID glXGetContextIDEXT(const GLXContext context) { return ((__GLXcontext *) context)->xid; } #endif #ifdef GLX_BUILT_IN_XMESA /* Use real libGL's glXGetCurrentDisplayEXT() function */ #else /* stand-alone Mesa */ Display *glXGetCurrentDisplayEXT(void) { return glXGetCurrentDisplay(); } #endif GLXContext glXImportContextEXT(Display *dpy, GLXContextID contextID) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->ImportContextEXT)(dpy, contextID); } int glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute,int *value) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; /* XXX ok? */ return (t->QueryContextInfoEXT)(dpy, context, attribute, value); } /*** GLX_SGIX_fbconfig ***/ int glXGetFBConfigAttribSGIX(Display *dpy, GLXFBConfigSGIX config, int attribute, int *value) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->GetFBConfigAttribSGIX)(dpy, config, attribute, value); } GLXFBConfigSGIX *glXChooseFBConfigSGIX(Display *dpy, int screen, int *attrib_list, int *nelements) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->ChooseFBConfigSGIX)(dpy, screen, attrib_list, nelements); } GLXPixmap glXCreateGLXPixmapWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, Pixmap pixmap) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateGLXPixmapWithConfigSGIX)(dpy, config, pixmap); } GLXContext glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateContextWithConfigSGIX)(dpy, config, render_type, share_list, direct); } XVisualInfo * glXGetVisualFromFBConfigSGIX(Display *dpy, GLXFBConfigSGIX config) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->GetVisualFromFBConfigSGIX)(dpy, config); } GLXFBConfigSGIX glXGetFBConfigFromVisualSGIX(Display *dpy, XVisualInfo *vis) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->GetFBConfigFromVisualSGIX)(dpy, vis); } /*** GLX_SGIX_pbuffer ***/ GLXPbufferSGIX glXCreateGLXPbufferSGIX(Display *dpy, GLXFBConfigSGIX config, unsigned int width, unsigned int height, int *attrib_list) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateGLXPbufferSGIX)(dpy, config, width, height, attrib_list); } void glXDestroyGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->DestroyGLXPbufferSGIX)(dpy, pbuf); } int glXQueryGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf, int attribute, unsigned int *value) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->QueryGLXPbufferSGIX)(dpy, pbuf, attribute, value); } void glXSelectEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long mask) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->SelectEventSGIX)(dpy, drawable, mask); } void glXGetSelectedEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long *mask) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->GetSelectedEventSGIX)(dpy, drawable, mask); } /*** GLX_SGI_cushion ***/ void glXCushionSGI(Display *dpy, Window win, float cushion) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->CushionSGI)(dpy, win, cushion); } /*** GLX_SGIX_video_resize ***/ int glXBindChannelToWindowSGIX(Display *dpy, int screen, int channel , Window window) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->BindChannelToWindowSGIX)(dpy, screen, channel, window); } int glXChannelRectSGIX(Display *dpy, int screen, int channel, int x, int y, int w, int h) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->ChannelRectSGIX)(dpy, screen, channel, x, y, w, h); } int glXQueryChannelRectSGIX(Display *dpy, int screen, int channel, int *x, int *y, int *w, int *h) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->QueryChannelRectSGIX)(dpy, screen, channel, x, y, w, h); } int glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel, int *dx, int *dy, int *dw, int *dh) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->QueryChannelDeltasSGIX)(dpy, screen, channel, dx, dy, dw, dh); } int glXChannelRectSyncSGIX(Display *dpy, int screen, int channel, GLenum synctype) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->ChannelRectSyncSGIX)(dpy, screen, channel, synctype); } #if defined(_DM_BUFFER_H_) Bool glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; return (t->AssociateDMPbufferSGIX)(dpy, pbuffer, params, dmbuffer); } #endif /*** GLX_SGIX_swap_group ***/ void glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (*t->JoinSwapGroupSGIX)(dpy, drawable, member); } /*** GLX_SGIX_swap_barrier ***/ void glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (*t->BindSwapBarrierSGIX)(dpy, drawable, barrier); } Bool glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; return (*t->QueryMaxSwapBarriersSGIX)(dpy, screen, max); } /*** GLX_SUN_get_transparent_index ***/ Status glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay, long *pTransparent) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; return (*t->GetTransparentIndexSUN)(dpy, overlay, underlay, pTransparent); } /*** GLX_MESA_copy_sub_buffer ***/ void glXCopySubBufferMESA(Display *dpy, GLXDrawable drawable, int x, int y, int width, int height) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return; (t->CopySubBufferMESA)(dpy, drawable, x, y, width, height); } /*** GLX_MESA_release_buffers ***/ Bool glXReleaseBuffersMESA(Display *dpy, Window w) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return False; return (t->ReleaseBuffersMESA)(dpy, w); } /*** GLX_MESA_pixmap_colormap ***/ GLXPixmap glXCreateGLXPixmapMESA(Display *dpy, XVisualInfo *visinfo, Pixmap pixmap, Colormap cmap) { struct _glxapi_table *t; GET_DISPATCH(dpy, t); if (!t) return 0; return (t->CreateGLXPixmapMESA)(dpy, visinfo, pixmap, cmap); } /*** GLX_MESA_set_3dfx_mode ***/ Bool glXSet3DfxModeMESA(int mode) { struct _glxapi_table *t; Display *dpy = glXGetCurrentDisplay(); GET_DISPATCH(dpy, t); if (!t) return False; return (t->Set3DfxModeMESA)(mode); } /**********************************************************************/ /* GLX API management functions */ /**********************************************************************/ const char * _glxapi_get_version(void) { return "1.3"; } /* * Return array of extension strings. */ const char ** _glxapi_get_extensions(void) { static const char *extensions[] = { #ifdef GLX_EXT_import_context "GLX_EXT_import_context", #endif #ifdef GLX_SGI_video_sync "GLX_SGI_video_sync", #endif #ifdef GLX_MESA_copy_sub_buffer "GLX_MESA_copy_sub_buffer", #endif #ifdef GLX_MESA_release_buffers "GLX_MESA_release_buffers", #endif #ifdef GLX_MESA_pixmap_colormap "GLX_MESA_pixmap_colormap", #endif #ifdef GLX_MESA_set_3dfx_mode "GLX_MESA_set_3dfx_mode", #endif NULL }; return extensions; } /* * Return size of the GLX dispatch table, in entries, not bytes. */ GLuint _glxapi_get_dispatch_table_size(void) { return sizeof(struct _glxapi_table) / sizeof(void *); } static int generic_no_op_func(void) { return 0; } /* * Initialize all functions in given dispatch table to be no-ops */ void _glxapi_set_no_op_table(struct _glxapi_table *t) { GLuint n = _glxapi_get_dispatch_table_size(); GLuint i; void **dispatch = (void **) t; for (i = 0; i < n; i++) { dispatch[i] = (void *) generic_no_op_func; } } #if 00 /* * Open the named library and use dlsym() to populate the given dispatch * table with GLX function pointers. * Return: true = all OK * false = can't open libName or can't get required GLX function */ GLboolean _glxapi_load_library_table(const char *libName, struct _glxapi_table *t) { void *libHandle; void **entry; /* used to avoid a lot of cast/type warnings */ libHandle = dlopen(libName, 0); if (!libHandle) { return GL_FALSE; } #define GET_REQ_FUNCTION(ENTRY, NAME) \ entry = (void **) &(t->ENTRY); \ *entry = dlsym(libHandle, NAME); \ if (!*entry) { \ fprintf(stderr, "libGL Error: couldn't load %s from %s\n", \ NAME, libName); \ dlclose(libHandle); \ return GL_FALSE; \ } /* 1.0 and 1.1 functions */ GET_REQ_FUNCTION(ChooseVisual, "glXChooseVisual"); GET_REQ_FUNCTION(CopyContext, "glXCopyContext"); GET_REQ_FUNCTION(CreateContext, "glXCreateContext"); GET_REQ_FUNCTION(CreateGLXPixmap, "glXCreateGLXPixmap"); GET_REQ_FUNCTION(DestroyContext, "glXDestroyContext"); GET_REQ_FUNCTION(GetConfig, "glXGetConfig"); GET_REQ_FUNCTION(IsDirect, "glXIsDirect"); GET_REQ_FUNCTION(MakeCurrent, "glXMakeCurrent"); GET_REQ_FUNCTION(QueryExtension, "glXQueryExtension"); GET_REQ_FUNCTION(QueryVersion, "glXQueryVersion"); GET_REQ_FUNCTION(SwapBuffers, "glXSwapBuffers"); GET_REQ_FUNCTION(UseXFont, "glXUseXFont"); GET_REQ_FUNCTION(WaitGL, "glXWaitGL"); GET_REQ_FUNCTION(WaitX, "glXWaitX"); GET_REQ_FUNCTION(GetClientString, "glXGetClientString"); GET_REQ_FUNCTION(QueryExtensionsString, "glXQueryExtensionsString"); GET_REQ_FUNCTION(QueryServerString, "glXQueryServerString"); #define GET_OPT_FUNCTION(ENTRY, NAME) \ entry = (void **) &(t->ENTRY); \ *entry = dlsym(libHandle, NAME); \ if (!*entry) { \ *entry = (void *) generic_no_op_func; \ } /* 1.2, 1.3 and extensions */ GET_OPT_FUNCTION(ChooseFBConfig, "glXChooseFBConfig"); GET_OPT_FUNCTION(CreateNewContext, "glXCreateNewContext"); GET_OPT_FUNCTION(CreatePbuffer, "glXCreatePbuffer"); GET_OPT_FUNCTION(CreatePixmap, "glXCreatePixmap"); GET_OPT_FUNCTION(CreateWindow, "glXCreateWindow"); GET_OPT_FUNCTION(DestroyPbuffer, "glXDestroyPbuffer"); GET_OPT_FUNCTION(DestroyPixmap, "glXDestroyPixmap"); GET_OPT_FUNCTION(DestroyWindow, "glXDestroyWindow"); GET_OPT_FUNCTION(GetFBConfigAttrib, "glXGetFBConfigAttrib"); GET_OPT_FUNCTION(GetFBConfigs, "glXGetFBConfigs"); GET_OPT_FUNCTION(GetSelectedEvent, "glXGetSelectedEvent"); GET_OPT_FUNCTION(GetVisualFromFBConfig, "glXGetVisualFromFBConfig"); GET_OPT_FUNCTION(MakeContextCurrent, "glXMakeContextCurrent"); GET_OPT_FUNCTION(QueryContext, "glXQueryContext"); GET_OPT_FUNCTION(QueryDrawable, "glXQueryDrawable"); GET_OPT_FUNCTION(SelectEvent, "glXSelectEvent"); /*** GLX_SGI_swap_control ***/ GET_OPT_FUNCTION(SwapIntervalSGI, "glXSwapIntervalSGI"); /*** GLX_SGI_video_sync ***/ GET_OPT_FUNCTION(GetVideoSyncSGI, "glXGetVideoSyncSGI"); GET_OPT_FUNCTION(WaitVideoSyncSGI, "glXWaitVideoSyncSGI"); /*** GLX_SGI_make_current_read ***/ GET_OPT_FUNCTION(MakeCurrentReadSGI, "glXMakeCurrentReadSGI"); GET_OPT_FUNCTION(GetCurrentReadDrawableSGI, "glXGetCurrentReadDrawableSGI"); /*** GLX_SGIX_video_source ***/ #if defined(_VL_H) GET_OPT_FUNCTION(CreateGLXVideoSourceSGIX, "glXCreateGLXVideoSourceSGIX"); GET_OPT_FUNCTION(DestroyGLXVideoSourceSGIX, "glXDestroyGLXVideoSourceSGIX"); #endif /*** GLX_EXT_import_context ***/ GET_OPT_FUNCTION(FreeContextEXT, "glXFreeContextEXT"); GET_OPT_FUNCTION(GetContextIDEXT, "glXGetContextIDEXT"); GET_OPT_FUNCTION(GetCurrentDisplayEXT, "glXGetCurrentDisplayEXT"); GET_OPT_FUNCTION(ImportContextEXT, "glXImportContextEXT"); GET_OPT_FUNCTION(QueryContextInfoEXT, "glXQueryContextInfoEXT"); /*** GLX_SGIX_fbconfig ***/ GET_OPT_FUNCTION(GetFBConfigAttribSGIX, "glXGetFBConfigAttribSGIX"); GET_OPT_FUNCTION(ChooseFBConfigSGIX, "glXChooseFBConfigSGIX"); GET_OPT_FUNCTION(CreateGLXPixmapWithConfigSGIX, "glXCreateGLXPixmapWithConfigSGIX"); GET_OPT_FUNCTION(CreateContextWithConfigSGIX, "glXCreateContextWithConfigSGIX"); GET_OPT_FUNCTION(GetVisualFromFBConfigSGIX, "glXGetVisualFromFBConfigSGIX"); GET_OPT_FUNCTION(GetFBConfigFromVisualSGIX, "glXGetFBConfigFromVisualSGIX"); /*** GLX_SGIX_pbuffer ***/ GET_OPT_FUNCTION(CreateGLXPbufferSGIX, "glXCreateGLXPbufferSGIX"); GET_OPT_FUNCTION(DestroyGLXPbufferSGIX, "glXDestroyGLXPbufferSGIX"); GET_OPT_FUNCTION(QueryGLXPbufferSGIX, "glXQueryGLXPbufferSGIX"); GET_OPT_FUNCTION(SelectEventSGIX, "glXSelectEventSGIX"); GET_OPT_FUNCTION(GetSelectedEventSGIX, "glXGetSelectedEventSGIX"); /*** GLX_SGI_cushion ***/ GET_OPT_FUNCTION(CushionSGI, "glXCushionSGI"); /*** GLX_SGIX_video_resize ***/ GET_OPT_FUNCTION(BindChannelToWindowSGIX, "glXBindChannelToWindowSGIX"); GET_OPT_FUNCTION(ChannelRectSGIX, "glXChannelRectSGIX"); GET_OPT_FUNCTION(QueryChannelRectSGIX, "glXQueryChannelRectSGIX"); GET_OPT_FUNCTION(QueryChannelDeltasSGIX, "glXQueryChannelDeltasSGIX"); GET_OPT_FUNCTION(ChannelRectSyncSGIX, "glXChannelRectSyncSGIX"); /*** GLX_SGIX_dmbuffer ***/ #if defined (_DM_BUFFER_H_) GET_OPT_FUNCTION(AssociateDMPbufferSGIX, "glXAssociateDMPbufferSGIX"); #endif /*** GLX_SGIX_swap_group ***/ GET_OPT_FUNCTION(JoinSwapGroupSGIX, "glXJoinSwapGroupSGIX"); /*** GLX_SGIX_swap_barrier ***/ GET_OPT_FUNCTION(BindSwapBarrierSGIX, "glXBindSwapBarrierSGIX"); GET_OPT_FUNCTION(QueryMaxSwapBarriersSGIX, "glXQueryMaxSwapBarriersSGIX"); /*** GLX_SUN_get_transparent_index ***/ GET_OPT_FUNCTION(GetTransparentIndexSUN, "glXGetTransparentIndexSUN"); /*** GLX_MESA_copy_sub_buffer ***/ GET_OPT_FUNCTION(CopySubBufferMESA, "glXCopySubBufferMESA"); /*** GLX_MESA_release_buffers ***/ GET_OPT_FUNCTION(ReleaseBuffersMESA, "glXReleaseBuffersMESA"); /*** GLX_MESA_pixmap_colormap ***/ GET_OPT_FUNCTION(CreateGLXPixmapMESA, "glXCreateGLXPixmapMESA"); /*** GLX_MESA_set_3dfx_mode ***/ GET_OPT_FUNCTION(Set3DfxModeMESA, "glXSet3DfxModeMESA"); return GL_TRUE; } #endif struct name_address_pair { const char *Name; GLvoid *Address; }; static struct name_address_pair GLX_functions[] = { /*** GLX_VERSION_1_0 ***/ { "glXChooseVisual", (GLvoid *) glXChooseVisual }, { "glXCopyContext", (GLvoid *) glXCopyContext }, { "glXCreateContext", (GLvoid *) glXCreateContext }, { "glXCreateGLXPixmap", (GLvoid *) glXCreateGLXPixmap }, { "glXDestroyContext", (GLvoid *) glXDestroyContext }, { "glXDestroyGLXPixmap", (GLvoid *) glXDestroyGLXPixmap }, { "glXGetConfig", (GLvoid *) glXGetConfig }, { "glXGetCurrentContext", (GLvoid *) glXGetCurrentContext }, { "glXGetCurrentDrawable", (GLvoid *) glXGetCurrentDrawable }, { "glXIsDirect", (GLvoid *) glXIsDirect }, { "glXMakeCurrent", (GLvoid *) glXMakeCurrent }, { "glXQueryExtension", (GLvoid *) glXQueryExtension }, { "glXQueryVersion", (GLvoid *) glXQueryVersion }, { "glXSwapBuffers", (GLvoid *) glXSwapBuffers }, { "glXUseXFont", (GLvoid *) glXUseXFont }, { "glXWaitGL", (GLvoid *) glXWaitGL }, { "glXWaitX", (GLvoid *) glXWaitX }, /*** GLX_VERSION_1_1 ***/ { "glXGetClientString", (GLvoid *) glXGetClientString }, { "glXQueryExtensionsString", (GLvoid *) glXQueryExtensionsString }, { "glXQueryServerString", (GLvoid *) glXQueryServerString }, /*** GLX_VERSION_1_2 ***/ { "glXGetCurrentDisplay", (GLvoid *) glXGetCurrentDisplay }, /*** GLX_VERSION_1_3 ***/ { "glXChooseFBConfig", (GLvoid *) glXChooseFBConfig }, { "glXCreateNewContext", (GLvoid *) glXCreateNewContext }, { "glXCreatePbuffer", (GLvoid *) glXCreatePbuffer }, { "glXCreatePixmap", (GLvoid *) glXCreatePixmap }, { "glXCreateWindow", (GLvoid *) glXCreateWindow }, { "glXDestroyPbuffer", (GLvoid *) glXDestroyPbuffer }, { "glXDestroyPixmap", (GLvoid *) glXDestroyPixmap }, { "glXDestroyWindow", (GLvoid *) glXDestroyWindow }, { "glXGetCurrentReadDrawable", (GLvoid *) glXGetCurrentReadDrawable }, { "glXGetFBConfigAttrib", (GLvoid *) glXGetFBConfigAttrib }, { "glXGetFBConfigs", (GLvoid *) glXGetFBConfigs }, { "glXGetSelectedEvent", (GLvoid *) glXGetSelectedEvent }, { "glXGetVisualFromFBConfig", (GLvoid *) glXGetVisualFromFBConfig }, { "glXMakeContextCurrent", (GLvoid *) glXMakeContextCurrent }, { "glXQueryContext", (GLvoid *) glXQueryContext }, { "glXQueryDrawable", (GLvoid *) glXQueryDrawable }, { "glXSelectEvent", (GLvoid *) glXSelectEvent }, /*** GLX_VERSION_1_4 ***/ { "glXGetProcAddress", (GLvoid *) glXGetProcAddress }, /*** GLX_SGI_swap_control ***/ { "glXSwapIntervalSGI", (GLvoid *) glXSwapIntervalSGI }, /*** GLX_SGI_video_sync ***/ { "glXGetVideoSyncSGI", (GLvoid *) glXGetVideoSyncSGI }, { "glXWaitVideoSyncSGI", (GLvoid *) glXWaitVideoSyncSGI }, /*** GLX_SGI_make_current_read ***/ { "glXMakeCurrentReadSGI", (GLvoid *) glXMakeCurrentReadSGI }, { "glXGetCurrentReadDrawableSGI", (GLvoid *) glXGetCurrentReadDrawableSGI }, /*** GLX_SGIX_video_source ***/ #if defined(_VL_H) { "glXCreateGLXVideoSourceSGIX", (GLvoid *) glXCreateGLXVideoSourceSGIX }, { "glXDestroyGLXVideoSourceSGIX", (GLvoid *) glXDestroyGLXVideoSourceSGIX }, #endif /*** GLX_EXT_import_context ***/ { "glXFreeContextEXT", (GLvoid *) glXFreeContextEXT }, { "glXGetContextIDEXT", (GLvoid *) glXGetContextIDEXT }, { "glXGetCurrentDisplayEXT", (GLvoid *) glXGetCurrentDisplayEXT }, { "glXImportContextEXT", (GLvoid *) glXImportContextEXT }, { "glXQueryContextInfoEXT", (GLvoid *) glXQueryContextInfoEXT }, /*** GLX_SGIX_fbconfig ***/ { "glXGetFBConfigAttribSGIX", (GLvoid *) glXGetFBConfigAttribSGIX }, { "glXChooseFBConfigSGIX", (GLvoid *) glXChooseFBConfigSGIX }, { "glXCreateGLXPixmapWithConfigSGIX", (GLvoid *) glXCreateGLXPixmapWithConfigSGIX }, { "glXCreateContextWithConfigSGIX", (GLvoid *) glXCreateContextWithConfigSGIX }, { "glXGetVisualFromFBConfigSGIX", (GLvoid *) glXGetVisualFromFBConfigSGIX }, { "glXGetFBConfigFromVisualSGIX", (GLvoid *) glXGetFBConfigFromVisualSGIX }, /*** GLX_SGIX_pbuffer ***/ { "glXCreateGLXPbufferSGIX", (GLvoid *) glXCreateGLXPbufferSGIX }, { "glXDestroyGLXPbufferSGIX", (GLvoid *) glXDestroyGLXPbufferSGIX }, { "glXQueryGLXPbufferSGIX", (GLvoid *) glXQueryGLXPbufferSGIX }, { "glXSelectEventSGIX", (GLvoid *) glXSelectEventSGIX }, { "glXGetSelectedEventSGIX", (GLvoid *) glXGetSelectedEventSGIX }, /*** GLX_SGI_cushion ***/ { "glXCushionSGI", (GLvoid *) glXCushionSGI }, /*** GLX_SGIX_video_resize ***/ { "glXBindChannelToWindowSGIX", (GLvoid *) glXBindChannelToWindowSGIX }, { "glXChannelRectSGIX", (GLvoid *) glXChannelRectSGIX }, { "glXQueryChannelRectSGIX", (GLvoid *) glXQueryChannelRectSGIX }, { "glXQueryChannelDeltasSGIX", (GLvoid *) glXQueryChannelDeltasSGIX }, { "glXChannelRectSyncSGIX", (GLvoid *) glXChannelRectSyncSGIX }, /*** GLX_SGIX_dmbuffer **/ #if defined(_DM_BUFFER_H_) { "glXAssociateDMPbufferSGIX", (GLvoid *) glXAssociateDMPbufferSGIX }, #endif /*** GLX_SGIX_swap_group ***/ { "glXJoinSwapGroupSGIX", (GLvoid *) glXJoinSwapGroupSGIX }, /*** GLX_SGIX_swap_barrier ***/ { "glXBindSwapBarrierSGIX", (GLvoid *) glXBindSwapBarrierSGIX }, { "glXQueryMaxSwapBarriersSGIX", (GLvoid *) glXQueryMaxSwapBarriersSGIX }, /*** GLX_SUN_get_transparent_index ***/ { "glXGetTransparentIndexSUN", (GLvoid *) glXGetTransparentIndexSUN }, /*** GLX_MESA_copy_sub_buffer ***/ { "glXCopySubBufferMESA", (GLvoid *) glXCopySubBufferMESA }, /*** GLX_MESA_pixmap_colormap ***/ { "glXCreateGLXPixmapMESA", (GLvoid *) glXCreateGLXPixmapMESA }, /*** GLX_MESA_release_buffers ***/ { "glXReleaseBuffersMESA", (GLvoid *) glXReleaseBuffersMESA }, /*** GLX_MESA_set_3dfx_mode ***/ { "glXSet3DfxModeMESA", (GLvoid *) glXSet3DfxModeMESA }, /*** GLX_ARB_get_proc_address ***/ { "glXGetProcAddressARB", (GLvoid *) glXGetProcAddressARB }, { NULL, NULL } /* end of list */ }; /* * Return address of named glX function, or NULL if not found. */ const GLvoid * _glxapi_get_proc_address(const char *funcName) { GLuint i; for (i = 0; GLX_functions[i].Name; i++) { if (strcmp(GLX_functions[i].Name, funcName) == 0) return GLX_functions[i].Address; } return NULL; } /* * This function does not get dispatched through the dispatch table * since it's really a "meta" function. */ void (*glXGetProcAddressARB(const GLubyte *procName))() { typedef void (*gl_function)(); gl_function f; f = (gl_function) _glxapi_get_proc_address((const char *) procName); if (f) { return f; } f = (gl_function) _glapi_get_proc_address((const char *) procName); return f; } /* GLX 1.4 */ void (*glXGetProcAddress(const GLubyte *procName))() { return glXGetProcAddressARB(procName); }