| /* $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 <extutil.h> |
| #include <Xext.h> |
| #include <assert.h> |
| #include <string.h> |
| #include "glapi.h" |
| #ifdef GLX_DIRECT_RENDERING |
| #include "indirect_init.h" |
| #include "xf86vmode.h" |
| #endif |
| #include "glxextensions.h" |
| #include "glcontextmodes.h" |
| #include <sys/time.h> |
| |
| #ifdef IN_DOXYGEN |
| #define GLX_PREFIX(x) x |
| #endif /* IN_DOXYGEN */ |
| |
| static const char __glXGLXClientVendorName[] = "SGI"; |
| static const char __glXGLXClientVersion[] = "1.4"; |
| |
| |
| #if defined(GLX_DIRECT_RENDERING) |
| #include "xf86dri.h" |
| |
| static Bool __glXWindowExists(Display *dpy, GLXDrawable draw); |
| |
| static void * DriverCreateContextWrapper( const __GLXscreenConfigs *psc, |
| Display *dpy, XVisualInfo *vis, void *shared, __DRIcontext *ctx, |
| const __GLcontextModes *fbconfig, int render_type ); |
| |
| static Bool dummyBindContext2( Display *dpy, int scrn, |
| GLXDrawable draw, GLXDrawable read, GLXContext gc ); |
| |
| static Bool dummyUnbindContext2( Display *dpy, int scrn, |
| GLXDrawable draw, GLXDrawable read, GLXContext gc ); |
| |
| /****************************************************************************/ |
| |
| /** |
| * Used as glue when a driver does not support |
| * \c __DRIcontextRec::bindContext2. |
| * |
| * XXX .bindContext is only defined as a function pointer if |
| * !DRI_NEW_INTERFACE_ONLY. |
| * |
| * \sa DriverCreateContextWrapper, __DRIcontextRec::bindContext2 |
| */ |
| static Bool dummyBindContext2( Display *dpy, int scrn, |
| GLXDrawable draw, GLXDrawable read, |
| GLXContext gc ) |
| { |
| assert( draw == read ); |
| return (*gc->driContext.bindContext)( dpy, scrn, draw, gc ); |
| } |
| |
| /** |
| * Used as glue when a driver does not support |
| * \c __DRIcontextRec::unbindContext2. |
| * |
| * XXX .unbindContext is only defined as a function pointer if |
| * !DRI_NEW_INTERFACE_ONLY. |
| * |
| * \sa DriverCreateContextWrapper, __DRIcontextRec::unbindContext2 |
| */ |
| static Bool dummyUnbindContext2( Display *dpy, int scrn, |
| GLXDrawable draw, GLXDrawable read, |
| GLXContext gc ) |
| { |
| assert( draw == read ); |
| return (*gc->driContext.unbindContext)( dpy, scrn, draw, gc, GL_FALSE ); |
| } |
| |
| |
| /****************************************************************************/ |
| /** |
| * Wrap the call to the driver's \c createContext function. |
| * |
| * The \c createContext function is wrapped because not all drivers support |
| * the "new" \c unbindContext2 and \c bindContext2 interfaces. libGL should |
| * not have to check to see which functions the driver supports. Instead, |
| * if either function is not supported it is wrapped. The wrappers test to |
| * make sure that both drawables are the same and pass control to the old |
| * interface. |
| * |
| * \sa dummyBindContext2, dummyUnbindContext2, |
| * __DRIcontextRec::bindContext2, __DRIcontextRec::unbindContext2 |
| */ |
| |
| static void * DriverCreateContextWrapper( const __GLXscreenConfigs *psc, |
| Display *dpy, XVisualInfo *vis, |
| void *shared, |
| __DRIcontext *ctx, |
| const __GLcontextModes *modes, |
| int render_type ) |
| { |
| void * ctx_priv = NULL; |
| |
| if ( psc->driScreen.createNewContext != NULL ) { |
| assert( modes != NULL ); |
| ctx_priv = (*psc->driScreen.createNewContext)(dpy, modes, render_type, |
| shared, ctx); |
| |
| /* If the driver supports the createNewContext interface, then |
| * it MUST also support either the bindContext2 / unbindContext2 |
| * interface or the bindContext3 / unbindContext3 interface. |
| */ |
| |
| assert( (ctx_priv == NULL) || (ctx->unbindContext2 != NULL) |
| || (ctx->unbindContext3 != NULL) ); |
| assert( (ctx_priv == NULL) || (ctx->bindContext2 != NULL) |
| || (ctx->bindContext3 != NULL) ); |
| } |
| else { |
| if ( vis != NULL ) { |
| ctx_priv = (*psc->driScreen.createContext)(dpy, vis, shared, ctx); |
| |
| if ( ctx_priv != NULL ) { |
| if ( ctx->unbindContext2 == NULL ) { |
| ctx->unbindContext2 = dummyUnbindContext2; |
| } |
| |
| if ( ctx->bindContext2 == NULL ) { |
| ctx->bindContext2 = dummyBindContext2; |
| } |
| } |
| } |
| } |
| |
| return ctx_priv; |
| } |
| #endif |
| |
| |
| /****************************************************************************/ |
| /** |
| * 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; |
| |
| __glXInitVertexArrayState(gc); |
| |
| 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 = |
| DriverCreateContextWrapper( psc, dpy, vis, shared, |
| &gc->driContext, mode, |
| renderType ); |
| 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; |
| } |
| |
| |
| GLXContext GLX_PREFIX(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(); |
| } |
| } |
| void GLX_PREFIX(glXDestroyContext)(Display *dpy, GLXContext gc) |
| { |
| DestroyContext(dpy, gc); |
| } |
| |
| /* |
| ** Return the major and minor version #s for the GLX extension |
| */ |
| Bool GLX_PREFIX(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 |
| */ |
| Bool GLX_PREFIX(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. |
| */ |
| void GLX_PREFIX(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. |
| */ |
| void GLX_PREFIX(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(); |
| } |
| |
| void GLX_PREFIX(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". |
| */ |
| void GLX_PREFIX(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; |
| } |
| |
| Bool GLX_PREFIX(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); |
| } |
| |
| GLXPixmap GLX_PREFIX(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 |
| */ |
| void GLX_PREFIX(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(); |
| } |
| |
| void GLX_PREFIX(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. |
| */ |
| int GLX_PREFIX(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. |
| */ |
| XVisualInfo *GLX_PREFIX(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; |
| } |
| |
| |
| const char *GLX_PREFIX(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 |
| (priv->driDisplay.private != NULL), |
| #else |
| GL_FALSE, |
| #endif |
| priv->minorVersion); |
| } |
| |
| return psc->effectiveGLXexts; |
| } |
| |
| const char *GLX_PREFIX(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; |
| } |
| } |
| |
| const char *GLX_PREFIX(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 |
| */ |
| |
| Display *glXGetCurrentDisplay(void) |
| { |
| GLXContext gc = __glXGetCurrentContext(); |
| if (NULL == gc) return NULL; |
| return gc->currentDpy; |
| } |
| |
| 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; |
| } |
| |
| int |
| GLX_PREFIX(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; |
| } |
| |
| GLX_ALIAS( int, glXQueryContextInfoEXT, |
| (Display *dpy, GLXContext ctx, int attribute, int *value), |
| (dpy, ctx, attribute, value), |
| glXQueryContext ) |
| |
| GLXContextID glXGetContextIDEXT(const GLXContext ctx) |
| { |
| return ctx->xid; |
| } |
| |
| GLXContext GLX_PREFIX(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; |
| } |
| |
| void GLX_PREFIX(glXFreeContextEXT)(Display *dpy, GLXContext ctx) |
| { |
| DestroyContext(dpy, ctx); |
| } |
| |
| |
| |
| /* |
| * GLX 1.3 functions - these are just stubs for now! |
| */ |
| |
| GLXFBConfig *GLX_PREFIX(glXChooseFBConfig)(Display *dpy, int screen, const int *attribList, int *nitems) |
| { |
| __GLcontextModes ** config_list; |
| int list_size; |
| |
| |
| config_list = (__GLcontextModes **) |
| GLX_PREFIX(glXGetFBConfigs)( dpy, screen, & list_size ); |
| |
| if ( (config_list != NULL) && (list_size > 0) ) { |
| 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; |
| } |
| |
| |
| GLXContext GLX_PREFIX(glXCreateNewContext)(Display *dpy, GLXFBConfig config, int renderType, GLXContext shareList, Bool allowDirect) |
| { |
| return CreateContext( dpy, NULL, (__GLcontextModes *) config, shareList, |
| allowDirect, None, True, renderType ); |
| } |
| |
| |
| GLXDrawable GLX_PREFIX(glXGetCurrentReadDrawable)(void) |
| { |
| GLXContext gc = __glXGetCurrentContext(); |
| return gc->currentReadable; |
| } |
| |
| |
| GLXFBConfig *GLX_PREFIX(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; |
| } |
| |
| |
| int GLX_PREFIX(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; |
| } |
| |
| |
| XVisualInfo *GLX_PREFIX(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 |
| */ |
| |
| GLX_ALIAS(GLXDrawable, glXGetCurrentReadDrawableSGI, (void), (), |
| glXGetCurrentReadDrawable) |
| |
| |
| /* |
| ** GLX_SGI_swap_control |
| */ |
| int GLX_PREFIX(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 |
| */ |
| GLint GLX_PREFIX(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; |
| } |
| |
| GLint GLX_PREFIX(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 |
| */ |
| |
| GLint GLX_PREFIX(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; |
| } |
| |
| |
| GLint GLX_PREFIX(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; |
| } |
| |
| |
| GLint GLX_PREFIX(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; |
| } |
| |
| |
| GLint GLX_PREFIX(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 |
| */ |
| int GLX_PREFIX(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; |
| } |
| |
| int GLX_PREFIX(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) |
| |
| GLXVideoSourceSGIX GLX_PREFIX(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; |
| } |
| |
| void GLX_PREFIX(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. |
| */ |
| |
| GLX_ALIAS(int, glXGetFBConfigAttribSGIX, |
| (Display *dpy, GLXFBConfigSGIX config, int attribute, int *value), |
| (dpy, config, attribute, value), |
| glXGetFBConfigAttrib) |
| |
| GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX, |
| (Display *dpy, int screen, int *attrib_list, int *nelements), |
| (dpy, screen, attrib_list, nelements), |
| glXChooseFBConfig) |
| |
| GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX, |
| (Display * dpy, GLXFBConfigSGIX config), |
| (dpy, config), |
| glXGetVisualFromFBConfig) |
| |
| GLXPixmap GLX_PREFIX(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; |
| } |
| |
| GLXContext GLX_PREFIX(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; |
| } |
| |
| |
| GLXFBConfigSGIX GLX_PREFIX(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 |
| */ |
| void GLX_PREFIX(glXCushionSGI)(Display *dpy, Window win, float cushion) |
| { |
| (void) dpy; |
| (void) win; |
| (void) cushion; |
| } |
| |
| |
| /* |
| ** GLX_SGIX_video_resize |
| */ |
| int GLX_PREFIX(glXBindChannelToWindowSGIX)(Display *dpy, int screen, int channel , Window window) |
| { |
| (void) dpy; |
| (void) screen; |
| (void) channel; |
| (void) window; |
| return 0; |
| } |
| |
| int GLX_PREFIX(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; |
| } |
| |
| int GLX_PREFIX(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 GLX_PREFIX(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; |
| } |
| |
| int GLX_PREFIX(glXChannelRectSyncSGIX)(Display *dpy, int screen, int channel, GLenum synctype) |
| { |
| (void) dpy; |
| (void) screen; |
| (void) channel; |
| (void) synctype; |
| return 0; |
| } |
| |
| |
| #if defined(_DM_BUFFER_H_) |
| |
| Bool GLX_PREFIX(glXAssociateDMPbufferSGIX)(Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer) |
| { |
| (void) dpy; |
| (void) pbuffer; |
| (void) params; |
| (void) dmbuffer; |
| return False; |
| } |
| |
| #endif |
| |
| |
| /* |
| ** GLX_SGIX_swap_group |
| */ |
| void GLX_PREFIX(glXJoinSwapGroupSGIX)(Display *dpy, GLXDrawable drawable, GLXDrawable member) |
| { |
| (void) dpy; |
| (void) drawable; |
| (void) member; |
| } |
| |
| |
| /* |
| ** GLX_SGIX_swap_barrier |
| */ |
| void GLX_PREFIX(glXBindSwapBarrierSGIX)(Display *dpy, GLXDrawable drawable, int barrier) |
| { |
| (void) dpy; |
| (void) drawable; |
| (void) barrier; |
| } |
| |
| Bool GLX_PREFIX(glXQueryMaxSwapBarriersSGIX)(Display *dpy, int screen, int *max) |
| { |
| (void) dpy; |
| (void) screen; |
| (void) max; |
| return False; |
| } |
| |
| |
| /* |
| ** GLX_SUN_get_transparent_index |
| */ |
| Status GLX_PREFIX(glXGetTransparentIndexSUN)(Display *dpy, Window overlay, Window underlay, long *pTransparent) |
| { |
| (void) dpy; |
| (void) overlay; |
| (void) underlay; |
| (void) pTransparent; |
| return 0; |
| } |
| |
| |
| /* |
| ** GLX_OML_sync_control |
| */ |
| Bool GLX_PREFIX(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. |
| */ |
| |
| Bool GLX_PREFIX(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; |
| } |
| |
| |
| int64_t GLX_PREFIX(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; |
| } |
| |
| |
| Bool GLX_PREFIX(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; |
| } |
| |
| |
| Bool GLX_PREFIX(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 |
| */ |
| /*@{*/ |
| |
| void *GLX_PREFIX(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; |
| } |
| |
| |
| void GLX_PREFIX(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 */ |
| } |
| |
| |
| GLuint GLX_PREFIX(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 |
| */ |
| Bool GLX_PREFIX(glXReleaseBuffersMESA)( Display *dpy, GLXDrawable d ) |
| { |
| (void) dpy; |
| (void) d; |
| return False; |
| } |
| |
| |
| GLXPixmap GLX_PREFIX(glXCreateGLXPixmapMESA)( Display *dpy, |
| XVisualInfo *visual, |
| Pixmap pixmap, Colormap cmap ) |
| { |
| (void) dpy; |
| (void) visual; |
| (void) pixmap; |
| (void) cmap; |
| return 0; |
| } |
| |
| |
| void GLX_PREFIX(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; |
| } |
| |
| |
| Bool GLX_PREFIX(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 |
| /*** |
| *** Internal functions useful to DRI drivers |
| *** With this, the DRI drivers shouldn't need dlopen()/dlsym() to |
| *** access internal libGL functions which may or may not exist. |
| ***/ |
| GLX_FUNCTION( __glXInitialize ), |
| GLX_FUNCTION( __glXFindDRIScreen ), |
| GLX_FUNCTION( __glXGetInternalVersion ), |
| GLX_FUNCTION( __glXWindowExists ), |
| GLX_FUNCTION2( __glXCreateContextWithConfig, XF86DRICreateContextWithConfig ), |
| GLX_FUNCTION2( __glXGetDrawableInfo, XF86DRIGetDrawableInfo ), |
| |
| /*** DRI configuration ***/ |
| GLX_FUNCTION( glXGetScreenDriver ), |
| GLX_FUNCTION( glXGetDriverConfig ), |
| |
| GLX_FUNCTION( __glXScrEnableExtension ), |
| |
| GLX_FUNCTION( __glXGetUST ), |
| |
| GLX_FUNCTION2( __glXCreateContextModes, _gl_context_modes_create ), |
| GLX_FUNCTION2( __glXDestroyContextModes, _gl_context_modes_destroy ), |
| #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; |
| } |
| |
| |
| #ifndef GLX_BUILT_IN_XMESA |
| /** |
| * 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 |
| */ |
| 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 |
| */ |
| void (*glXGetProcAddress(const GLubyte *procName))( void ) |
| #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED) |
| __attribute__ ((alias ("glXGetProcAddressARB"))); |
| #else |
| { |
| return glXGetProcAddressARB(procName); |
| } |
| #endif /* __GNUC__ */ |
| #endif /* GLX_BUILT_IN_XMESA */ |
| |
| |
| #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. :( |
| */ |
| return 20040602; |
| } |
| |
| |
| |
| 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. |
| */ |
| static 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 */ |