| /* |
| * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) |
| * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice including the dates of first publication and |
| * either this permission notice or a reference to |
| * http://oss.sgi.com/projects/FreeB/ |
| * shall be included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| * Except as contained in this notice, the name of Silicon Graphics, Inc. |
| * shall not be used in advertising or otherwise to promote the sale, use or |
| * other dealings in this Software without prior written authorization from |
| * Silicon Graphics, Inc. |
| */ |
| |
| /** |
| * \file glxcmds.c |
| * Client-side GLX interface. |
| */ |
| |
| #include "glxclient.h" |
| #include "glapi.h" |
| #include "glxextensions.h" |
| #include "glcontextmodes.h" |
| |
| #ifdef GLX_DIRECT_RENDERING |
| #include <sys/time.h> |
| #include <X11/extensions/xf86vmode.h> |
| #include "xf86dri.h" |
| #endif |
| |
| #if defined(USE_XCB) |
| #include <X11/Xlib-xcb.h> |
| #include <xcb/xcb.h> |
| #include <xcb/glx.h> |
| #endif |
| |
| static const char __glXGLXClientVendorName[] = "Mesa Project and SGI"; |
| static const char __glXGLXClientVersion[] = "1.4"; |
| |
| |
| /****************************************************************************/ |
| |
| #ifdef GLX_DIRECT_RENDERING |
| |
| static Bool windowExistsFlag; |
| static int |
| windowExistsErrorHandler(Display * dpy, XErrorEvent * xerr) |
| { |
| if (xerr->error_code == BadWindow) { |
| windowExistsFlag = GL_FALSE; |
| } |
| return 0; |
| } |
| |
| /** |
| * Find drawables in the local hash that have been destroyed on the |
| * server. |
| * |
| * \param dpy Display to destroy drawables for |
| * \param screen Screen number to destroy drawables for |
| */ |
| static void |
| GarbageCollectDRIDrawables(Display * dpy, __GLXscreenConfigs * sc) |
| { |
| XID draw; |
| __GLXDRIdrawable *pdraw; |
| XWindowAttributes xwa; |
| int (*oldXErrorHandler) (Display *, XErrorEvent *); |
| |
| /* Set no-op error handler so Xlib doesn't bail out if the windows |
| * has alreay been destroyed on the server. */ |
| XSync(dpy, GL_FALSE); |
| oldXErrorHandler = XSetErrorHandler(windowExistsErrorHandler); |
| |
| if (__glxHashFirst(sc->drawHash, &draw, (void *) &pdraw) == 1) { |
| do { |
| windowExistsFlag = GL_TRUE; |
| XGetWindowAttributes(dpy, draw, &xwa); /* dummy request */ |
| if (!windowExistsFlag) { |
| /* Destroy the local drawable data, if the drawable no |
| longer exists in the Xserver */ |
| (*pdraw->destroyDrawable) (pdraw); |
| __glxHashDelete(sc->drawHash, draw); |
| } |
| } while (__glxHashNext(sc->drawHash, &draw, (void *) &pdraw) == 1); |
| } |
| |
| XSync(dpy, GL_FALSE); |
| XSetErrorHandler(oldXErrorHandler); |
| } |
| |
| extern __GLXDRIdrawable *GetGLXDRIDrawable(Display * dpy, |
| GLXDrawable drawable, |
| int *const scrn_num); |
| |
| /** |
| * 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. |
| * \param scrn_num If non-NULL, the drawables screen is stored there |
| * \returns A pointer to the context's __DRIdrawable on success, or NULL if |
| * the drawable is not associated with a direct-rendering context. |
| */ |
| _X_HIDDEN __GLXDRIdrawable * |
| GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable, int *const scrn_num) |
| { |
| __GLXdisplayPrivate *priv = __glXInitialize(dpy); |
| __GLXDRIdrawable *pdraw; |
| const unsigned screen_count = ScreenCount(dpy); |
| unsigned i; |
| __GLXscreenConfigs *psc; |
| |
| if (priv == NULL) |
| return NULL; |
| |
| for (i = 0; i < screen_count; i++) { |
| psc = &priv->screenConfigs[i]; |
| if (psc->drawHash == NULL) |
| continue; |
| |
| if (__glxHashLookup(psc->drawHash, drawable, (void *) &pdraw) == 0) { |
| 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 |
| && priv->screenConfigs != |
| NULL) ? &priv->screenConfigs[scrn] : NULL; |
| } |
| |
| |
| static int |
| GetGLXPrivScreenConfig(Display * dpy, int scrn, __GLXdisplayPrivate ** ppriv, |
| __GLXscreenConfigs ** ppsc) |
| { |
| /* Initialize the extension, if needed . This has the added value |
| * of initializing/allocating the display private |
| */ |
| |
| if (dpy == NULL) { |
| return GLX_NO_EXTENSION; |
| } |
| |
| *ppriv = __glXInitialize(dpy); |
| if (*ppriv == NULL) { |
| return GLX_NO_EXTENSION; |
| } |
| |
| /* Check screen number to see if its valid */ |
| if ((scrn < 0) || (scrn >= ScreenCount(dpy))) { |
| return GLX_BAD_SCREEN; |
| } |
| |
| /* Check to see if the GL is supported on this screen */ |
| *ppsc = &((*ppriv)->screenConfigs[scrn]); |
| if ((*ppsc)->configs == NULL) { |
| /* No support for GL on this screen regardless of visual */ |
| return GLX_BAD_VISUAL; |
| } |
| |
| return Success; |
| } |
| |
| |
| /** |
| * Determine if a \c GLXFBConfig supplied by the application is valid. |
| * |
| * \param dpy Application supplied \c Display pointer. |
| * \param config Application supplied \c GLXFBConfig. |
| * |
| * \returns If the \c GLXFBConfig is valid, the a pointer to the matching |
| * \c __GLcontextModes structure is returned. Otherwise, \c NULL |
| * is returned. |
| */ |
| static __GLcontextModes * |
| ValidateGLXFBConfig(Display * dpy, GLXFBConfig config) |
| { |
| __GLXdisplayPrivate *const priv = __glXInitialize(dpy); |
| const unsigned num_screens = ScreenCount(dpy); |
| unsigned i; |
| const __GLcontextModes *modes; |
| |
| |
| if (priv != NULL) { |
| for (i = 0; i < num_screens; i++) { |
| for (modes = priv->screenConfigs[i].configs; modes != NULL; |
| modes = modes->next) { |
| if (modes == (__GLcontextModes *) config) { |
| return (__GLcontextModes *) config; |
| } |
| } |
| } |
| } |
| |
| return NULL; |
| } |
| |
| |
| /** |
| * \todo It should be possible to move the allocate of \c client_state_private |
| * later in the function for direct-rendering contexts. Direct-rendering |
| * contexts don't need to track client state, so they don't need that memory |
| * at all. |
| * |
| * \todo Eliminate \c __glXInitVertexArrayState. Replace it with a new |
| * function called \c __glXAllocateClientState that allocates the memory and |
| * does all the initialization (including the pixel pack / unpack). |
| */ |
| static GLXContext |
| AllocateGLXContext(Display * dpy) |
| { |
| GLXContext gc; |
| int bufSize; |
| CARD8 opcode; |
| __GLXattribute *state; |
| |
| if (!dpy) |
| return NULL; |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return NULL; |
| } |
| |
| /* Allocate our context record */ |
| gc = (GLXContext) Xmalloc(sizeof(struct __GLXcontextRec)); |
| if (!gc) { |
| /* Out of memory */ |
| return NULL; |
| } |
| memset(gc, 0, sizeof(struct __GLXcontextRec)); |
| |
| state = Xmalloc(sizeof(struct __GLXattributeRec)); |
| if (state == NULL) { |
| /* Out of memory */ |
| Xfree(gc); |
| return NULL; |
| } |
| gc->client_state_private = state; |
| memset(gc->client_state_private, 0, sizeof(struct __GLXattributeRec)); |
| state->NoDrawArraysProtocol = (getenv("LIBGL_NO_DRAWARRAYS") != NULL); |
| |
| /* |
| ** Create a temporary buffer to hold GLX rendering commands. The size |
| ** of the buffer is selected so that the maximum number of GLX rendering |
| ** commands can fit in a single X packet and still have room in the X |
| ** packet for the GLXRenderReq header. |
| */ |
| |
| bufSize = (XMaxRequestSize(dpy) * 4) - sz_xGLXRenderReq; |
| gc->buf = (GLubyte *) Xmalloc(bufSize); |
| if (!gc->buf) { |
| Xfree(gc->client_state_private); |
| Xfree(gc); |
| return NULL; |
| } |
| gc->bufSize = bufSize; |
| |
| /* Fill in the new context */ |
| gc->renderMode = GL_RENDER; |
| |
| state->storePack.alignment = 4; |
| state->storeUnpack.alignment = 4; |
| |
| gc->attributes.stackPointer = &gc->attributes.stack[0]; |
| |
| /* |
| ** PERFORMANCE NOTE: A mode dependent fill image can speed things up. |
| ** Other code uses the fastImageUnpack bit, but it is never set |
| ** to GL_TRUE. |
| */ |
| gc->fastImageUnpack = GL_FALSE; |
| gc->fillImage = __glFillImage; |
| gc->pc = gc->buf; |
| gc->bufEnd = gc->buf + bufSize; |
| gc->isDirect = GL_FALSE; |
| 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; |
| #ifdef GLX_DIRECT_RENDERING |
| int screen = (fbconfig == NULL) ? vis->screen : fbconfig->screen; |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| #endif |
| |
| 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 && psc->driScreen) { |
| const __GLcontextModes *mode; |
| |
| if (fbconfig == NULL) { |
| mode = _gl_context_modes_find_visual(psc->visuals, vis->visualid); |
| if (mode == NULL) { |
| xError error; |
| |
| error.errorCode = BadValue; |
| error.resourceID = vis->visualid; |
| error.sequenceNumber = dpy->request; |
| error.type = X_Error; |
| error.majorCode = gc->majorOpcode; |
| error.minorCode = X_GLXCreateContext; |
| _XError(dpy, &error); |
| return None; |
| } |
| if (renderType == 0) { |
| /* Initialize renderType now */ |
| renderType = mode->rgbMode ? GLX_RGBA_TYPE : GLX_COLOR_INDEX_TYPE; |
| } |
| } |
| else { |
| mode = fbconfig; |
| } |
| |
| gc->driContext = psc->driScreen->createContext(psc, mode, gc, |
| shareList, |
| renderType); |
| if (gc->driContext != NULL) { |
| gc->screen = mode->screen; |
| gc->psc = psc; |
| gc->mode = mode; |
| gc->isDirect = GL_TRUE; |
| } |
| } |
| #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; |
| #ifdef GLX_DIRECT_RENDERING |
| req->isDirect = gc->driContext != NULL; |
| #else |
| req->isDirect = 0; |
| #endif |
| } |
| 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; |
| #ifdef GLX_DIRECT_RENDERING |
| req->isDirect = gc->driContext != NULL; |
| #else |
| req->isDirect = 0; |
| #endif |
| } |
| 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; |
| #ifdef GLX_DIRECT_RENDERING |
| req->isDirect = gc->driContext != NULL; |
| #else |
| req->isDirect = 0; |
| #endif |
| } |
| |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| gc->imported = GL_FALSE; |
| } |
| else { |
| gc->xid = contextID; |
| gc->imported = GL_TRUE; |
| } |
| |
| gc->renderType = renderType; |
| |
| return gc; |
| } |
| |
| PUBLIC GLXContext |
| glXCreateContext(Display * dpy, XVisualInfo * vis, |
| GLXContext shareList, Bool allowDirect) |
| { |
| return CreateContext(dpy, vis, NULL, shareList, allowDirect, None, |
| False, 0); |
| } |
| |
| _X_HIDDEN 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; |
| |
| if (gc->currentDpy) { |
| /* This context is bound to some thread. According to the man page, |
| * we should not actually delete the context until it's unbound. |
| * Note that we set gc->xid = None above. In MakeContextCurrent() |
| * we check for that and delete the context there. |
| */ |
| __glXUnlock(); |
| return; |
| } |
| |
| #ifdef GLX_DIRECT_RENDERING |
| /* Destroy the direct rendering context */ |
| if (gc->driContext) { |
| (*gc->driContext->destroyContext) (gc->driContext, gc->psc, dpy); |
| gc->driContext = NULL; |
| GarbageCollectDRIDrawables(dpy, gc->psc); |
| } |
| #endif |
| |
| __glXFreeVertexArrayState(gc); |
| |
| if (gc->currentDpy) { |
| /* Have to free later cuz it's in use now */ |
| __glXUnlock(); |
| } |
| else { |
| /* Destroy the handle if not current to anybody */ |
| __glXUnlock(); |
| __glXFreeContext(gc); |
| } |
| |
| if (!imported) { |
| /* |
| ** This dpy also created the server side part of the context. |
| ** Send the glXDestroyContext request. |
| */ |
| LockDisplay(dpy); |
| GetReq(GLXDestroyContext, req); |
| req->reqType = opcode; |
| req->glxCode = X_GLXDestroyContext; |
| req->context = xid; |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| } |
| |
| PUBLIC void |
| glXDestroyContext(Display * dpy, GLXContext gc) |
| { |
| DestroyContext(dpy, gc); |
| } |
| |
| /* |
| ** Return the major and minor version #s for the GLX extension |
| */ |
| PUBLIC Bool |
| glXQueryVersion(Display * dpy, int *major, int *minor) |
| { |
| __GLXdisplayPrivate *priv; |
| |
| /* Init the extension. This fetches the major and minor version. */ |
| priv = __glXInitialize(dpy); |
| if (!priv) |
| return GL_FALSE; |
| |
| if (major) |
| *major = priv->majorVersion; |
| if (minor) |
| *minor = priv->minorVersion; |
| return GL_TRUE; |
| } |
| |
| /* |
| ** Query the existance of the GLX extension |
| */ |
| PUBLIC Bool |
| glXQueryExtension(Display * dpy, int *errorBase, int *eventBase) |
| { |
| int major_op, erb, evb; |
| Bool rv; |
| |
| rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb); |
| if (rv) { |
| if (errorBase) |
| *errorBase = erb; |
| if (eventBase) |
| *eventBase = evb; |
| } |
| return rv; |
| } |
| |
| /* |
| ** Put a barrier in the token stream that forces the GL to finish its |
| ** work before X can proceed. |
| */ |
| PUBLIC void |
| glXWaitGL(void) |
| { |
| xGLXWaitGLReq *req; |
| GLXContext gc = __glXGetCurrentContext(); |
| Display *dpy = gc->currentDpy; |
| |
| if (!dpy) |
| return; |
| |
| /* Flush any pending commands out */ |
| __glXFlushRenderBuffer(gc, gc->pc); |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (gc->driContext) { |
| int screen; |
| __GLXDRIdrawable *pdraw = |
| GetGLXDRIDrawable(dpy, gc->currentDrawable, &screen); |
| |
| if (pdraw != NULL) { |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| glFlush(); |
| if (psc->driScreen->waitGL != NULL) |
| (*psc->driScreen->waitGL) (pdraw); |
| } |
| return; |
| } |
| #endif |
| |
| /* Send the glXWaitGL request */ |
| LockDisplay(dpy); |
| GetReq(GLXWaitGL, req); |
| req->reqType = gc->majorOpcode; |
| req->glxCode = X_GLXWaitGL; |
| req->contextTag = gc->currentContextTag; |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| /* |
| ** Put a barrier in the token stream that forces X to finish its |
| ** work before GL can proceed. |
| */ |
| PUBLIC void |
| glXWaitX(void) |
| { |
| xGLXWaitXReq *req; |
| GLXContext gc = __glXGetCurrentContext(); |
| Display *dpy = gc->currentDpy; |
| |
| if (!dpy) |
| return; |
| |
| /* Flush any pending commands out */ |
| __glXFlushRenderBuffer(gc, gc->pc); |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (gc->driContext) { |
| int screen; |
| __GLXDRIdrawable *pdraw = |
| GetGLXDRIDrawable(dpy, gc->currentDrawable, &screen); |
| |
| if (pdraw != NULL) { |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| if (psc->driScreen->waitX != NULL) |
| (*psc->driScreen->waitX) (pdraw); |
| } |
| else |
| XSync(dpy, False); |
| return; |
| } |
| #endif |
| |
| /* |
| ** Send the glXWaitX request. |
| */ |
| LockDisplay(dpy); |
| GetReq(GLXWaitX, req); |
| req->reqType = gc->majorOpcode; |
| req->glxCode = X_GLXWaitX; |
| req->contextTag = gc->currentContextTag; |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| PUBLIC void |
| glXUseXFont(Font font, int first, int count, int listBase) |
| { |
| xGLXUseXFontReq *req; |
| GLXContext gc = __glXGetCurrentContext(); |
| Display *dpy = gc->currentDpy; |
| |
| if (!dpy) |
| return; |
| |
| /* Flush any pending commands out */ |
| (void) __glXFlushRenderBuffer(gc, gc->pc); |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (gc->driContext) { |
| DRI_glXUseXFont(font, first, count, listBase); |
| return; |
| } |
| #endif |
| |
| /* Send the glXUseFont request */ |
| LockDisplay(dpy); |
| GetReq(GLXUseXFont, req); |
| req->reqType = gc->majorOpcode; |
| req->glxCode = X_GLXUseXFont; |
| req->contextTag = gc->currentContextTag; |
| req->font = font; |
| req->first = first; |
| req->count = count; |
| req->listBase = listBase; |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| /************************************************************************/ |
| |
| /* |
| ** Copy the source context to the destination context using the |
| ** attribute "mask". |
| */ |
| PUBLIC void |
| glXCopyContext(Display * dpy, GLXContext source, |
| GLXContext dest, unsigned long mask) |
| { |
| xGLXCopyContextReq *req; |
| GLXContext gc = __glXGetCurrentContext(); |
| GLXContextTag tag; |
| CARD8 opcode; |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return; |
| } |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (gc->driContext) { |
| /* 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) |
| { |
| #if !defined(USE_XCB) |
| xGLXIsDirectReq *req; |
| xGLXIsDirectReply reply; |
| #endif |
| CARD8 opcode; |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return GL_FALSE; |
| } |
| |
| #ifdef USE_XCB |
| xcb_connection_t *c = XGetXCBConnection(dpy); |
| xcb_glx_is_direct_reply_t *reply = xcb_glx_is_direct_reply(c, |
| xcb_glx_is_direct |
| (c, contextID), |
| NULL); |
| |
| const Bool is_direct = reply->is_direct ? True : False; |
| free(reply); |
| |
| return is_direct; |
| #else |
| /* 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; |
| #endif /* USE_XCB */ |
| } |
| |
| /** |
| * \todo |
| * Shouldn't this function \b always return \c GL_FALSE when |
| * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with |
| * the GLX protocol here at all? |
| */ |
| PUBLIC Bool |
| glXIsDirect(Display * dpy, GLXContext gc) |
| { |
| if (!gc) { |
| return GL_FALSE; |
| #ifdef GLX_DIRECT_RENDERING |
| } |
| else if (gc->driContext) { |
| return GL_TRUE; |
| #endif |
| } |
| return __glXIsDirect(dpy, gc->xid); |
| } |
| |
| PUBLIC GLXPixmap |
| glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap) |
| { |
| xGLXCreateGLXPixmapReq *req; |
| GLXPixmap xid; |
| CARD8 opcode; |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return None; |
| } |
| |
| /* Send the glXCreateGLXPixmap request */ |
| LockDisplay(dpy); |
| GetReq(GLXCreateGLXPixmap, req); |
| req->reqType = opcode; |
| req->glxCode = X_GLXCreateGLXPixmap; |
| req->screen = vis->screen; |
| req->visual = vis->visualid; |
| req->pixmap = pixmap; |
| req->glxpixmap = xid = XAllocID(dpy); |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| |
| #ifdef GLX_DIRECT_RENDERING |
| do { |
| /* FIXME: Maybe delay __DRIdrawable creation until the drawable |
| * is actually bound to a context... */ |
| |
| __GLXdisplayPrivate *const priv = __glXInitialize(dpy); |
| __GLXDRIdrawable *pdraw; |
| __GLXscreenConfigs *psc; |
| __GLcontextModes *modes; |
| |
| psc = &priv->screenConfigs[vis->screen]; |
| if (psc->driScreen == NULL) |
| break; |
| modes = _gl_context_modes_find_visual(psc->visuals, vis->visualid); |
| pdraw = psc->driScreen->createDrawable(psc, pixmap, req->glxpixmap, modes); |
| if (pdraw == NULL) { |
| fprintf(stderr, "failed to create pixmap\n"); |
| break; |
| } |
| |
| if (__glxHashInsert(psc->drawHash, req->glxpixmap, pdraw)) { |
| (*pdraw->destroyDrawable) (pdraw); |
| return None; /* FIXME: Check what we're supposed to do here... */ |
| } |
| } while (0); |
| #endif |
| |
| return xid; |
| } |
| |
| /* |
| ** Destroy the named pixmap |
| */ |
| PUBLIC void |
| glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap) |
| { |
| xGLXDestroyGLXPixmapReq *req; |
| CARD8 opcode; |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return; |
| } |
| |
| /* Send the glXDestroyGLXPixmap request */ |
| LockDisplay(dpy); |
| GetReq(GLXDestroyGLXPixmap, req); |
| req->reqType = opcode; |
| req->glxCode = X_GLXDestroyGLXPixmap; |
| req->glxpixmap = glxpixmap; |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| |
| #ifdef GLX_DIRECT_RENDERING |
| { |
| int screen; |
| __GLXdisplayPrivate *const priv = __glXInitialize(dpy); |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap, &screen); |
| __GLXscreenConfigs *psc = &priv->screenConfigs[screen]; |
| |
| if (pdraw != NULL) { |
| (*pdraw->destroyDrawable) (pdraw); |
| __glxHashDelete(psc->drawHash, glxpixmap); |
| } |
| } |
| #endif |
| } |
| |
| PUBLIC void |
| glXSwapBuffers(Display * dpy, GLXDrawable drawable) |
| { |
| GLXContext gc; |
| GLXContextTag tag; |
| CARD8 opcode; |
| #ifdef USE_XCB |
| xcb_connection_t *c; |
| #else |
| xGLXSwapBuffersReq *req; |
| #endif |
| |
| #ifdef GLX_DIRECT_RENDERING |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, NULL); |
| |
| if (pdraw != NULL) { |
| glFlush(); |
| (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0); |
| 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; |
| } |
| |
| #ifdef USE_XCB |
| c = XGetXCBConnection(dpy); |
| xcb_glx_swap_buffers(c, tag, drawable); |
| xcb_flush(c); |
| #else |
| /* 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); |
| #endif /* USE_XCB */ |
| } |
| |
| |
| /* |
| ** Return configuration information for the given display, screen and |
| ** visual combination. |
| */ |
| PUBLIC int |
| glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute, |
| int *value_return) |
| { |
| __GLXdisplayPrivate *priv; |
| __GLXscreenConfigs *psc; |
| __GLcontextModes *modes; |
| int status; |
| |
| status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc); |
| if (status == Success) { |
| modes = _gl_context_modes_find_visual(psc->visuals, vis->visualid); |
| |
| /* Lookup attribute after first finding a match on the visual */ |
| if (modes != NULL) { |
| return _gl_get_context_mode_data(modes, attribute, value_return); |
| } |
| |
| status = GLX_BAD_VISUAL; |
| } |
| |
| /* |
| ** If we can't find the config for this visual, this visual is not |
| ** supported by the OpenGL implementation on the server. |
| */ |
| if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) { |
| *value_return = GL_FALSE; |
| status = Success; |
| } |
| |
| return status; |
| } |
| |
| /************************************************************************/ |
| |
| static void |
| init_fbconfig_for_chooser(__GLcontextModes * config, |
| GLboolean fbconfig_style_tags) |
| { |
| memset(config, 0, sizeof(__GLcontextModes)); |
| config->visualID = (XID) GLX_DONT_CARE; |
| config->visualType = GLX_DONT_CARE; |
| |
| /* glXChooseFBConfig specifies different defaults for these two than |
| * glXChooseVisual. |
| */ |
| if (fbconfig_style_tags) { |
| config->rgbMode = GL_TRUE; |
| config->doubleBufferMode = GLX_DONT_CARE; |
| } |
| |
| config->visualRating = GLX_DONT_CARE; |
| config->transparentPixel = GLX_NONE; |
| config->transparentRed = GLX_DONT_CARE; |
| config->transparentGreen = GLX_DONT_CARE; |
| config->transparentBlue = GLX_DONT_CARE; |
| config->transparentAlpha = GLX_DONT_CARE; |
| config->transparentIndex = GLX_DONT_CARE; |
| |
| config->drawableType = GLX_WINDOW_BIT; |
| config->renderType = |
| (config->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; |
| config->xRenderable = GLX_DONT_CARE; |
| config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE); |
| |
| config->swapMethod = GLX_DONT_CARE; |
| } |
| |
| #define MATCH_DONT_CARE( param ) \ |
| do { \ |
| if ( (a-> param != GLX_DONT_CARE) \ |
| && (a-> param != b-> param) ) { \ |
| return False; \ |
| } \ |
| } while ( 0 ) |
| |
| #define MATCH_MINIMUM( param ) \ |
| do { \ |
| if ( (a-> param != GLX_DONT_CARE) \ |
| && (a-> param > b-> param) ) { \ |
| return False; \ |
| } \ |
| } while ( 0 ) |
| |
| #define MATCH_EXACT( param ) \ |
| do { \ |
| if ( a-> param != b-> param) { \ |
| return False; \ |
| } \ |
| } while ( 0 ) |
| |
| /** |
| * Determine if two GLXFBConfigs are compatible. |
| * |
| * \param a Application specified config to test. |
| * \param b Server specified config to test against \c a. |
| */ |
| static Bool |
| fbconfigs_compatible(const __GLcontextModes * const a, |
| const __GLcontextModes * const b) |
| { |
| MATCH_DONT_CARE(doubleBufferMode); |
| MATCH_DONT_CARE(visualType); |
| MATCH_DONT_CARE(visualRating); |
| MATCH_DONT_CARE(xRenderable); |
| MATCH_DONT_CARE(fbconfigID); |
| MATCH_DONT_CARE(swapMethod); |
| |
| MATCH_MINIMUM(rgbBits); |
| MATCH_MINIMUM(numAuxBuffers); |
| MATCH_MINIMUM(redBits); |
| MATCH_MINIMUM(greenBits); |
| MATCH_MINIMUM(blueBits); |
| MATCH_MINIMUM(alphaBits); |
| MATCH_MINIMUM(depthBits); |
| MATCH_MINIMUM(stencilBits); |
| MATCH_MINIMUM(accumRedBits); |
| MATCH_MINIMUM(accumGreenBits); |
| MATCH_MINIMUM(accumBlueBits); |
| MATCH_MINIMUM(accumAlphaBits); |
| MATCH_MINIMUM(sampleBuffers); |
| MATCH_MINIMUM(maxPbufferWidth); |
| MATCH_MINIMUM(maxPbufferHeight); |
| MATCH_MINIMUM(maxPbufferPixels); |
| MATCH_MINIMUM(samples); |
| |
| MATCH_DONT_CARE(stereoMode); |
| MATCH_EXACT(level); |
| |
| if (((a->drawableType & b->drawableType) == 0) |
| || ((a->renderType & b->renderType) == 0)) { |
| return False; |
| } |
| |
| |
| /* There is a bug in a few of the XFree86 DDX drivers. They contain |
| * visuals with a "transparent type" of 0 when they really mean GLX_NONE. |
| * Technically speaking, it is a bug in the DDX driver, but there is |
| * enough of an installed base to work around the problem here. In any |
| * case, 0 is not a valid value of the transparent type, so we'll treat 0 |
| * from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and |
| * 0 from the server to be a match to maintain backward compatibility with |
| * the (broken) drivers. |
| */ |
| |
| if (a->transparentPixel != GLX_DONT_CARE && a->transparentPixel != 0) { |
| if (a->transparentPixel == GLX_NONE) { |
| if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0) |
| return False; |
| } |
| else { |
| MATCH_EXACT(transparentPixel); |
| } |
| |
| switch (a->transparentPixel) { |
| case GLX_TRANSPARENT_RGB: |
| MATCH_DONT_CARE(transparentRed); |
| MATCH_DONT_CARE(transparentGreen); |
| MATCH_DONT_CARE(transparentBlue); |
| MATCH_DONT_CARE(transparentAlpha); |
| break; |
| |
| case GLX_TRANSPARENT_INDEX: |
| MATCH_DONT_CARE(transparentIndex); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| return True; |
| } |
| |
| |
| /* There's some trickly language in the GLX spec about how this is supposed |
| * to work. Basically, if a given component size is either not specified |
| * or the requested size is zero, it is supposed to act like PERFER_SMALLER. |
| * Well, that's really hard to do with the code as-is. This behavior is |
| * closer to correct, but still not technically right. |
| */ |
| #define PREFER_LARGER_OR_ZERO(comp) \ |
| do { \ |
| if ( ((*a)-> comp) != ((*b)-> comp) ) { \ |
| if ( ((*a)-> comp) == 0 ) { \ |
| return -1; \ |
| } \ |
| else if ( ((*b)-> comp) == 0 ) { \ |
| return 1; \ |
| } \ |
| else { \ |
| return ((*b)-> comp) - ((*a)-> comp) ; \ |
| } \ |
| } \ |
| } while( 0 ) |
| |
| #define PREFER_LARGER(comp) \ |
| do { \ |
| if ( ((*a)-> comp) != ((*b)-> comp) ) { \ |
| return ((*b)-> comp) - ((*a)-> comp) ; \ |
| } \ |
| } while( 0 ) |
| |
| #define PREFER_SMALLER(comp) \ |
| do { \ |
| if ( ((*a)-> comp) != ((*b)-> comp) ) { \ |
| return ((*a)-> comp) - ((*b)-> comp) ; \ |
| } \ |
| } while( 0 ) |
| |
| /** |
| * Compare two GLXFBConfigs. This function is intended to be used as the |
| * compare function passed in to qsort. |
| * |
| * \returns If \c a is a "better" config, according to the specification of |
| * SGIX_fbconfig, a number less than zero is returned. If \c b is |
| * better, then a number greater than zero is return. If both are |
| * equal, zero is returned. |
| * \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX |
| */ |
| static int |
| fbconfig_compare(const __GLcontextModes * const *const a, |
| const __GLcontextModes * const *const b) |
| { |
| /* The order of these comparisons must NOT change. It is defined by |
| * the GLX 1.3 spec and ARB_multisample. |
| */ |
| |
| PREFER_SMALLER(visualSelectGroup); |
| |
| /* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and |
| * GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the |
| * numerical sort order of the enums (0x8000, 0x8001, and 0x800D). |
| */ |
| PREFER_SMALLER(visualRating); |
| |
| /* This isn't quite right. It is supposed to compare the sum of the |
| * components the user specifically set minimums for. |
| */ |
| PREFER_LARGER_OR_ZERO(redBits); |
| PREFER_LARGER_OR_ZERO(greenBits); |
| PREFER_LARGER_OR_ZERO(blueBits); |
| PREFER_LARGER_OR_ZERO(alphaBits); |
| |
| PREFER_SMALLER(rgbBits); |
| |
| if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) { |
| /* Prefer single-buffer. |
| */ |
| return (!(*a)->doubleBufferMode) ? -1 : 1; |
| } |
| |
| PREFER_SMALLER(numAuxBuffers); |
| |
| PREFER_LARGER_OR_ZERO(depthBits); |
| PREFER_SMALLER(stencilBits); |
| |
| /* This isn't quite right. It is supposed to compare the sum of the |
| * components the user specifically set minimums for. |
| */ |
| PREFER_LARGER_OR_ZERO(accumRedBits); |
| PREFER_LARGER_OR_ZERO(accumGreenBits); |
| PREFER_LARGER_OR_ZERO(accumBlueBits); |
| PREFER_LARGER_OR_ZERO(accumAlphaBits); |
| |
| PREFER_SMALLER(visualType); |
| |
| /* None of the multisample specs say where this comparison should happen, |
| * so I put it near the end. |
| */ |
| PREFER_SMALLER(sampleBuffers); |
| PREFER_SMALLER(samples); |
| |
| /* None of the pbuffer or fbconfig specs say that this comparison needs |
| * to happen at all, but it seems like it should. |
| */ |
| PREFER_LARGER(maxPbufferWidth); |
| PREFER_LARGER(maxPbufferHeight); |
| PREFER_LARGER(maxPbufferPixels); |
| |
| return 0; |
| } |
| |
| |
| /** |
| * Selects and sorts a subset of the supplied configs based on the attributes. |
| * This function forms to basis of \c glXChooseVisual, \c glXChooseFBConfig, |
| * and \c glXChooseFBConfigSGIX. |
| * |
| * \param configs Array of pointers to possible configs. The elements of |
| * this array that do not meet the criteria will be set to |
| * NULL. The remaining elements will be sorted according to |
| * the various visual / FBConfig selection rules. |
| * \param num_configs Number of elements in the \c configs array. |
| * \param attribList Attributes used select from \c configs. This array is |
| * terminated by a \c None tag. The array can either take |
| * the form expected by \c glXChooseVisual (where boolean |
| * tags do not have a value) or by \c glXChooseFBConfig |
| * (where every tag has a value). |
| * \param fbconfig_style_tags Selects whether \c attribList is in |
| * \c glXChooseVisual style or |
| * \c glXChooseFBConfig style. |
| * \returns The number of valid elements left in \c configs. |
| * |
| * \sa glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX |
| */ |
| static int |
| choose_visual(__GLcontextModes ** configs, int num_configs, |
| const int *attribList, GLboolean fbconfig_style_tags) |
| { |
| __GLcontextModes test_config; |
| int base; |
| int i; |
| |
| /* This is a fairly direct implementation of the selection method |
| * described by GLX_SGIX_fbconfig. Start by culling out all the |
| * configs that are not compatible with the selected parameter |
| * list. |
| */ |
| |
| init_fbconfig_for_chooser(&test_config, fbconfig_style_tags); |
| __glXInitializeVisualConfigFromTags(&test_config, 512, |
| (const INT32 *) attribList, |
| GL_TRUE, fbconfig_style_tags); |
| |
| base = 0; |
| for (i = 0; i < num_configs; i++) { |
| if (fbconfigs_compatible(&test_config, configs[i])) { |
| configs[base] = configs[i]; |
| base++; |
| } |
| } |
| |
| if (base == 0) { |
| return 0; |
| } |
| |
| if (base < num_configs) { |
| (void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base)); |
| } |
| |
| /* After the incompatible configs are removed, the resulting |
| * list is sorted according to the rules set out in the various |
| * specifications. |
| */ |
| |
| qsort(configs, base, sizeof(__GLcontextModes *), |
| (int (*)(const void *, const void *)) fbconfig_compare); |
| return base; |
| } |
| |
| |
| |
| |
| /* |
| ** Return the visual that best matches the template. Return None if no |
| ** visual matches the template. |
| */ |
| PUBLIC XVisualInfo * |
| glXChooseVisual(Display * dpy, int screen, int *attribList) |
| { |
| XVisualInfo *visualList = NULL; |
| __GLXdisplayPrivate *priv; |
| __GLXscreenConfigs *psc; |
| __GLcontextModes test_config; |
| __GLcontextModes *modes; |
| const __GLcontextModes *best_config = NULL; |
| |
| /* |
| ** Get a list of all visuals, return if list is empty |
| */ |
| if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) { |
| return None; |
| } |
| |
| |
| /* |
| ** Build a template from the defaults and the attribute list |
| ** Free visual list and return if an unexpected token is encountered |
| */ |
| init_fbconfig_for_chooser(&test_config, GL_FALSE); |
| __glXInitializeVisualConfigFromTags(&test_config, 512, |
| (const INT32 *) attribList, |
| GL_TRUE, GL_FALSE); |
| |
| /* |
| ** Eliminate visuals that don't meet minimum requirements |
| ** Compute a score for those that do |
| ** Remember which visual, if any, got the highest score |
| ** If no visual is acceptable, return None |
| ** Otherwise, create an XVisualInfo list with just the selected X visual |
| ** and return this. |
| */ |
| for (modes = psc->visuals; modes != NULL; modes = modes->next) { |
| if (fbconfigs_compatible(&test_config, modes) |
| && ((best_config == NULL) |
| || |
| (fbconfig_compare |
| ((const __GLcontextModes * const *const) &modes, |
| &best_config) < 0))) { |
| XVisualInfo visualTemplate; |
| XVisualInfo *newList; |
| int i; |
| |
| visualTemplate.screen = screen; |
| visualTemplate.visualid = modes->visualID; |
| newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask, |
| &visualTemplate, &i); |
| |
| if (newList) { |
| Xfree(visualList); |
| visualList = newList; |
| best_config = modes; |
| } |
| } |
| } |
| |
| return visualList; |
| } |
| |
| |
| PUBLIC const char * |
| glXQueryExtensionsString(Display * dpy, int screen) |
| { |
| __GLXscreenConfigs *psc; |
| __GLXdisplayPrivate *priv; |
| |
| if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) { |
| return NULL; |
| } |
| |
| if (!psc->effectiveGLXexts) { |
| if (!psc->serverGLXexts) { |
| psc->serverGLXexts = |
| __glXQueryServerString(dpy, priv->majorOpcode, screen, |
| GLX_EXTENSIONS); |
| } |
| |
| __glXCalculateUsableExtensions(psc, |
| #ifdef GLX_DIRECT_RENDERING |
| (psc->driScreen != NULL), |
| #else |
| GL_FALSE, |
| #endif |
| priv->minorVersion); |
| } |
| |
| return psc->effectiveGLXexts; |
| } |
| |
| PUBLIC const char * |
| glXGetClientString(Display * dpy, int name) |
| { |
| switch (name) { |
| case GLX_VENDOR: |
| return (__glXGLXClientVendorName); |
| case GLX_VERSION: |
| return (__glXGLXClientVersion); |
| case GLX_EXTENSIONS: |
| return (__glXGetClientExtensions()); |
| default: |
| return NULL; |
| } |
| } |
| |
| PUBLIC const char * |
| glXQueryServerString(Display * dpy, int screen, int name) |
| { |
| __GLXscreenConfigs *psc; |
| __GLXdisplayPrivate *priv; |
| const char **str; |
| |
| |
| if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) { |
| return NULL; |
| } |
| |
| switch (name) { |
| case GLX_VENDOR: |
| str = &priv->serverGLXvendor; |
| break; |
| case GLX_VERSION: |
| str = &priv->serverGLXversion; |
| break; |
| case GLX_EXTENSIONS: |
| str = &psc->serverGLXexts; |
| break; |
| default: |
| return NULL; |
| } |
| |
| if (*str == NULL) { |
| *str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name); |
| } |
| |
| return *str; |
| } |
| |
| void |
| __glXClientInfo(Display * dpy, int opcode) |
| { |
| char *ext_str = __glXGetClientGLExtensionString(); |
| int size = strlen(ext_str) + 1; |
| |
| #ifdef USE_XCB |
| xcb_connection_t *c = XGetXCBConnection(dpy); |
| xcb_glx_client_info(c, |
| GLX_MAJOR_VERSION, GLX_MINOR_VERSION, size, ext_str); |
| #else |
| xGLXClientInfoReq *req; |
| |
| /* 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; |
| |
| req->length += (size + 3) >> 2; |
| req->numbytes = size; |
| Data(dpy, ext_str, size); |
| |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| #endif /* USE_XCB */ |
| |
| Xfree(ext_str); |
| } |
| |
| |
| /* |
| ** EXT_import_context |
| */ |
| |
| PUBLIC Display * |
| glXGetCurrentDisplay(void) |
| { |
| GLXContext gc = __glXGetCurrentContext(); |
| if (NULL == gc) |
| return NULL; |
| return gc->currentDpy; |
| } |
| |
| PUBLIC |
| GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (), |
| glXGetCurrentDisplay) |
| |
| /** |
| * Used internally by libGL to send \c xGLXQueryContextinfoExtReq requests |
| * to the X-server. |
| * |
| * \param dpy Display where \c ctx was created. |
| * \param ctx Context to query. |
| * \returns \c Success on success. \c GLX_BAD_CONTEXT if \c ctx is invalid, |
| * or zero if the request failed due to internal problems (i.e., |
| * unable to allocate temporary memory, etc.) |
| * |
| * \note |
| * This function dynamically determines whether to use the EXT_import_context |
| * version of the protocol or the GLX 1.3 version of the protocol. |
| */ |
| static int __glXQueryContextInfo(Display * dpy, GLXContext ctx) |
| { |
| __GLXdisplayPrivate *priv = __glXInitialize(dpy); |
| xGLXQueryContextReply reply; |
| CARD8 opcode; |
| GLuint numValues; |
| int retval; |
| |
| if (ctx == NULL) { |
| return GLX_BAD_CONTEXT; |
| } |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return 0; |
| } |
| |
| /* Send the glXQueryContextInfoEXT request */ |
| LockDisplay(dpy); |
| |
| if ((priv->majorVersion > 1) || (priv->minorVersion >= 3)) { |
| xGLXQueryContextReq *req; |
| |
| GetReq(GLXQueryContext, req); |
| |
| req->reqType = opcode; |
| req->glxCode = X_GLXQueryContext; |
| req->context = (unsigned int) (ctx->xid); |
| } |
| else { |
| xGLXVendorPrivateReq *vpreq; |
| xGLXQueryContextInfoEXTReq *req; |
| |
| GetReqExtra(GLXVendorPrivate, |
| sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq, |
| vpreq); |
| req = (xGLXQueryContextInfoEXTReq *) vpreq; |
| req->reqType = opcode; |
| req->glxCode = X_GLXVendorPrivateWithReply; |
| req->vendorCode = X_GLXvop_QueryContextInfoEXT; |
| req->context = (unsigned int) (ctx->xid); |
| } |
| |
| _XReply(dpy, (xReply *) & reply, 0, False); |
| |
| numValues = reply.n; |
| if (numValues == 0) |
| retval = Success; |
| else if (numValues > __GLX_MAX_CONTEXT_PROPS) |
| retval = 0; |
| else { |
| int *propList, *pProp; |
| int nPropListBytes; |
| int i; |
| |
| nPropListBytes = numValues << 3; |
| propList = (int *) Xmalloc(nPropListBytes); |
| if (NULL == propList) { |
| retval = 0; |
| } |
| else { |
| _XRead(dpy, (char *) propList, nPropListBytes); |
| pProp = propList; |
| for (i = 0; i < numValues; i++) { |
| switch (*pProp++) { |
| case GLX_SHARE_CONTEXT_EXT: |
| ctx->share_xid = *pProp++; |
| break; |
| case GLX_VISUAL_ID_EXT: |
| ctx->mode = |
| _gl_context_modes_find_visual(ctx->psc->visuals, *pProp++); |
| break; |
| case GLX_SCREEN: |
| ctx->screen = *pProp++; |
| break; |
| case GLX_FBCONFIG_ID: |
| ctx->mode = |
| _gl_context_modes_find_fbconfig(ctx->psc->configs, |
| *pProp++); |
| break; |
| case GLX_RENDER_TYPE: |
| ctx->renderType = *pProp++; |
| break; |
| default: |
| pProp++; |
| continue; |
| } |
| } |
| Xfree((char *) propList); |
| retval = Success; |
| } |
| } |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| return retval; |
| } |
| |
| PUBLIC int |
| glXQueryContext(Display * dpy, GLXContext ctx, int attribute, int *value) |
| { |
| int retVal; |
| |
| /* get the information from the server if we don't have it already */ |
| #ifdef GLX_DIRECT_RENDERING |
| if (!ctx->driContext && (ctx->mode == NULL)) { |
| #else |
| if (ctx->mode == NULL) { |
| #endif |
| 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 = ctx->mode ? ctx->mode->visualID : None; |
| break; |
| case GLX_SCREEN: |
| *value = (int) (ctx->screen); |
| break; |
| case GLX_FBCONFIG_ID: |
| *value = ctx->mode ? ctx->mode->fbconfigID : None; |
| break; |
| case GLX_RENDER_TYPE: |
| *value = (int) (ctx->renderType); |
| break; |
| default: |
| return GLX_BAD_ATTRIBUTE; |
| } |
| return Success; |
| } |
| |
| PUBLIC |
| GLX_ALIAS(int, glXQueryContextInfoEXT, |
| (Display * dpy, GLXContext ctx, int attribute, int *value), |
| (dpy, ctx, attribute, value), glXQueryContext) |
| |
| PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx) |
| { |
| return ctx->xid; |
| } |
| |
| PUBLIC GLXContext |
| glXImportContextEXT(Display * dpy, GLXContextID contextID) |
| { |
| GLXContext ctx; |
| |
| if (contextID == None) { |
| return NULL; |
| } |
| if (__glXIsDirect(dpy, contextID)) { |
| return NULL; |
| } |
| |
| ctx = CreateContext(dpy, NULL, NULL, NULL, False, contextID, False, 0); |
| if (NULL != ctx) { |
| if (Success != __glXQueryContextInfo(dpy, ctx)) { |
| return NULL; |
| } |
| } |
| return ctx; |
| } |
| |
| PUBLIC void |
| glXFreeContextEXT(Display * dpy, GLXContext ctx) |
| { |
| DestroyContext(dpy, ctx); |
| } |
| |
| |
| |
| /* |
| * GLX 1.3 functions - these are just stubs for now! |
| */ |
| |
| PUBLIC GLXFBConfig * |
| glXChooseFBConfig(Display * dpy, int screen, |
| const int *attribList, int *nitems) |
| { |
| __GLcontextModes **config_list; |
| int list_size; |
| |
| |
| config_list = (__GLcontextModes **) |
| glXGetFBConfigs(dpy, screen, &list_size); |
| |
| if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) { |
| list_size = choose_visual(config_list, list_size, attribList, GL_TRUE); |
| if (list_size == 0) { |
| XFree(config_list); |
| config_list = NULL; |
| } |
| } |
| |
| *nitems = list_size; |
| return (GLXFBConfig *) config_list; |
| } |
| |
| |
| PUBLIC GLXContext |
| glXCreateNewContext(Display * dpy, GLXFBConfig config, |
| int renderType, GLXContext shareList, Bool allowDirect) |
| { |
| return CreateContext(dpy, NULL, (__GLcontextModes *) config, shareList, |
| allowDirect, None, True, renderType); |
| } |
| |
| |
| PUBLIC GLXDrawable |
| glXGetCurrentReadDrawable(void) |
| { |
| GLXContext gc = __glXGetCurrentContext(); |
| return gc->currentReadable; |
| } |
| |
| |
| PUBLIC GLXFBConfig * |
| glXGetFBConfigs(Display * dpy, int screen, int *nelements) |
| { |
| __GLXdisplayPrivate *priv = __glXInitialize(dpy); |
| __GLcontextModes **config = NULL; |
| int i; |
| |
| *nelements = 0; |
| if (priv && (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) { |
| if (modes->fbconfigID != GLX_DONT_CARE) { |
| config[i] = modes; |
| i++; |
| } |
| } |
| } |
| } |
| return (GLXFBConfig *) config; |
| } |
| |
| |
| PUBLIC int |
| glXGetFBConfigAttrib(Display * dpy, GLXFBConfig config, |
| int attribute, int *value) |
| { |
| __GLcontextModes *const modes = ValidateGLXFBConfig(dpy, config); |
| |
| return (modes != NULL) |
| ? _gl_get_context_mode_data(modes, attribute, value) |
| : GLXBadFBConfig; |
| } |
| |
| |
| PUBLIC XVisualInfo * |
| glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig config) |
| { |
| XVisualInfo visualTemplate; |
| __GLcontextModes *fbconfig = (__GLcontextModes *) config; |
| int count; |
| |
| /* |
| ** Get a list of all visuals, return if list is empty |
| */ |
| visualTemplate.visualid = fbconfig->visualID; |
| return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count); |
| } |
| |
| |
| /* |
| ** GLX_SGI_swap_control |
| */ |
| static int |
| __glXSwapIntervalSGI(int interval) |
| { |
| xGLXVendorPrivateReq *req; |
| GLXContext gc = __glXGetCurrentContext(); |
| __GLXscreenConfigs *psc; |
| Display *dpy; |
| CARD32 *interval_ptr; |
| CARD8 opcode; |
| |
| if (gc == NULL) { |
| return GLX_BAD_CONTEXT; |
| } |
| |
| if (interval <= 0) { |
| return GLX_BAD_VALUE; |
| } |
| |
| #ifdef __DRI_SWAP_CONTROL |
| if (gc->driContext) { |
| __GLXscreenConfigs * const psc = GetGLXScreenConfigs( gc->currentDpy, |
| gc->screen ); |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy, |
| gc->currentDrawable, |
| NULL); |
| if (psc->swapControl != NULL && pdraw != NULL) { |
| psc->swapControl->setSwapInterval(pdraw->driDrawable, interval); |
| return 0; |
| } |
| else if (pdraw == NULL) { |
| return GLX_BAD_CONTEXT; |
| } |
| } |
| #endif |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| |
| if (gc->driContext && psc->driScreen && psc->driScreen->setSwapInterval) { |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy, |
| gc->currentDrawable, |
| NULL); |
| psc->driScreen->setSwapInterval(pdraw, interval); |
| return 0; |
| } |
| |
| 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 |
| */ |
| static int |
| __glXSwapIntervalMESA(unsigned int interval) |
| { |
| GLXContext gc = __glXGetCurrentContext(); |
| |
| if (interval < 0) { |
| return GLX_BAD_VALUE; |
| } |
| |
| #ifdef __DRI_SWAP_CONTROL |
| if (gc != NULL && gc->driContext) { |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(gc->currentDpy, |
| gc->screen); |
| |
| if ((psc != NULL) && (psc->driScreen != NULL)) { |
| __GLXDRIdrawable *pdraw = |
| GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL); |
| if (psc->swapControl != NULL && pdraw != NULL) { |
| psc->swapControl->setSwapInterval(pdraw->driDrawable, interval); |
| return 0; |
| } |
| } |
| } |
| #endif |
| |
| if (gc != NULL && gc->driContext) { |
| __GLXscreenConfigs *psc; |
| |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| if (psc->driScreen && psc->driScreen->setSwapInterval) { |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy, |
| gc->currentDrawable, NULL); |
| psc->driScreen->setSwapInterval(pdraw, interval); |
| return 0; |
| } |
| } |
| |
| return GLX_BAD_CONTEXT; |
| } |
| |
| |
| static int |
| __glXGetSwapIntervalMESA(void) |
| { |
| #ifdef __DRI_SWAP_CONTROL |
| GLXContext gc = __glXGetCurrentContext(); |
| |
| if (gc != NULL && gc->driContext) { |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(gc->currentDpy, |
| gc->screen); |
| |
| if ((psc != NULL) && (psc->driScreen != NULL)) { |
| __GLXDRIdrawable *pdraw = |
| GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL); |
| if (psc->swapControl != NULL && pdraw != NULL) { |
| return psc->swapControl->getSwapInterval(pdraw->driDrawable); |
| } |
| } |
| } |
| #endif |
| if (gc != NULL && gc->driContext) { |
| __GLXscreenConfigs *psc; |
| |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| if (psc->driScreen && psc->driScreen->getSwapInterval) { |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(gc->currentDpy, |
| gc->currentDrawable, NULL); |
| return psc->driScreen->getSwapInterval(pdraw); |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| /* |
| ** GLX_MESA_swap_frame_usage |
| */ |
| |
| static GLint |
| __glXBeginFrameTrackingMESA(Display * dpy, GLXDrawable drawable) |
| { |
| int status = GLX_BAD_CONTEXT; |
| #ifdef __DRI_FRAME_TRACKING |
| int screen = 0; |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen); |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| |
| if (pdraw != NULL && psc->frameTracking != NULL) |
| status = psc->frameTracking->frameTracking(pdraw->driDrawable, GL_TRUE); |
| #else |
| (void) dpy; |
| (void) drawable; |
| #endif |
| return status; |
| } |
| |
| |
| static GLint |
| __glXEndFrameTrackingMESA(Display * dpy, GLXDrawable drawable) |
| { |
| int status = GLX_BAD_CONTEXT; |
| #ifdef __DRI_FRAME_TRACKING |
| int screen = 0; |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen); |
| __GLXscreenConfigs *psc = GetGLXScreenConfigs(dpy, screen); |
| |
| if (pdraw != NULL && psc->frameTracking != NULL) |
| status = psc->frameTracking->frameTracking(pdraw->driDrawable, |
| GL_FALSE); |
| #else |
| (void) dpy; |
| (void) drawable; |
| #endif |
| return status; |
| } |
| |
| |
| static GLint |
| __glXGetFrameUsageMESA(Display * dpy, GLXDrawable drawable, GLfloat * usage) |
| { |
| int status = GLX_BAD_CONTEXT; |
| #ifdef __DRI_FRAME_TRACKING |
| int screen = 0; |
| __GLXDRIdrawable *const pdraw = GetGLXDRIDrawable(dpy, drawable, &screen); |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| |
| if (pdraw != NULL && psc->frameTracking != NULL) { |
| int64_t sbc, missedFrames; |
| float lastMissedUsage; |
| |
| status = psc->frameTracking->queryFrameTracking(pdraw->driDrawable, |
| &sbc, |
| &missedFrames, |
| &lastMissedUsage, |
| usage); |
| } |
| #else |
| (void) dpy; |
| (void) drawable; |
| (void) usage; |
| #endif |
| return status; |
| } |
| |
| |
| static GLint |
| __glXQueryFrameTrackingMESA(Display * dpy, GLXDrawable drawable, |
| int64_t * sbc, int64_t * missedFrames, |
| GLfloat * lastMissedUsage) |
| { |
| int status = GLX_BAD_CONTEXT; |
| #ifdef __DRI_FRAME_TRACKING |
| int screen = 0; |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen); |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| |
| if (pdraw != NULL && psc->frameTracking != NULL) { |
| float usage; |
| |
| status = psc->frameTracking->queryFrameTracking(pdraw->driDrawable, |
| sbc, missedFrames, |
| lastMissedUsage, |
| &usage); |
| } |
| #else |
| (void) dpy; |
| (void) drawable; |
| (void) sbc; |
| (void) missedFrames; |
| (void) lastMissedUsage; |
| #endif |
| return status; |
| } |
| |
| |
| /* |
| ** GLX_SGI_video_sync |
| */ |
| static int |
| __glXGetVideoSyncSGI(unsigned int *count) |
| { |
| int64_t ust, msc, sbc; |
| int ret; |
| GLXContext gc = __glXGetCurrentContext(); |
| __GLXscreenConfigs *psc; |
| __GLXDRIdrawable *pdraw; |
| |
| if (!gc || !gc->driContext) |
| return GLX_BAD_CONTEXT; |
| |
| psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen); |
| pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL); |
| |
| /* 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 __DRI_MEDIA_STREAM_COUNTER |
| if ( psc->msc && psc->driScreen ) { |
| ret = (*psc->msc->getDrawableMSC)(psc->__driScreen, |
| pdraw->driDrawable, &msc); |
| *count = (unsigned) msc; |
| |
| return (ret == 0) ? 0 : GLX_BAD_CONTEXT; |
| } |
| #endif |
| if (psc->driScreen && psc->driScreen->getDrawableMSC) { |
| ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc); |
| *count = (unsigned) msc; |
| return (ret == True) ? 0 : GLX_BAD_CONTEXT; |
| } |
| |
| return GLX_BAD_CONTEXT; |
| } |
| |
| static int |
| __glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count) |
| { |
| GLXContext gc = __glXGetCurrentContext(); |
| __GLXscreenConfigs *psc; |
| __GLXDRIdrawable *pdraw; |
| int64_t ust, msc, sbc; |
| int ret; |
| |
| if (divisor <= 0 || remainder < 0) |
| return GLX_BAD_VALUE; |
| |
| if (!gc || !gc->driContext) |
| return GLX_BAD_CONTEXT; |
| |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable, NULL); |
| |
| #ifdef __DRI_MEDIA_STREAM_COUNTER |
| if (psc->msc != NULL && psc->driScreen ) { |
| ret = (*psc->msc->waitForMSC)(pdraw->driDrawable, 0, |
| divisor, remainder, &msc, &sbc); |
| *count = (unsigned) msc; |
| return (ret == 0) ? 0 : GLX_BAD_CONTEXT; |
| } |
| #endif |
| if (psc->driScreen && psc->driScreen->waitForMSC) { |
| ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc, |
| &sbc); |
| *count = (unsigned) msc; |
| return (ret == True) ? 0 : GLX_BAD_CONTEXT; |
| } |
| |
| return GLX_BAD_CONTEXT; |
| } |
| |
| |
| /* |
| ** GLX_SGIX_fbconfig |
| ** Many of these functions are aliased to GLX 1.3 entry points in the |
| ** GLX_functions table. |
| */ |
| |
| PUBLIC |
| GLX_ALIAS(int, glXGetFBConfigAttribSGIX, |
| (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value), |
| (dpy, config, attribute, value), glXGetFBConfigAttrib) |
| |
| PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX, |
| (Display * dpy, int screen, int *attrib_list, |
| int *nelements), (dpy, screen, attrib_list, nelements), |
| glXChooseFBConfig) |
| |
| PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX, |
| (Display * dpy, GLXFBConfigSGIX config), |
| (dpy, config), glXGetVisualFromFBConfig) |
| |
| PUBLIC GLXPixmap |
| glXCreateGLXPixmapWithConfigSGIX(Display * dpy, |
| GLXFBConfigSGIX config, |
| Pixmap pixmap) |
| { |
| xGLXVendorPrivateWithReplyReq *vpreq; |
| xGLXCreateGLXPixmapWithConfigSGIXReq *req; |
| GLXPixmap xid = None; |
| CARD8 opcode; |
| const __GLcontextModes *const fbconfig = (__GLcontextModes *) config; |
| __GLXscreenConfigs *psc; |
| |
| |
| if ((dpy == NULL) || (config == NULL)) { |
| return None; |
| } |
| |
| psc = GetGLXScreenConfigs(dpy, fbconfig->screen); |
| if ((psc != NULL) |
| && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) { |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return None; |
| } |
| |
| /* Send the glXCreateGLXPixmapWithConfigSGIX request */ |
| LockDisplay(dpy); |
| GetReqExtra(GLXVendorPrivateWithReply, |
| sz_xGLXCreateGLXPixmapWithConfigSGIXReq - |
| sz_xGLXVendorPrivateWithReplyReq, vpreq); |
| req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq; |
| req->reqType = opcode; |
| req->glxCode = X_GLXVendorPrivateWithReply; |
| req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX; |
| req->screen = fbconfig->screen; |
| req->fbconfig = fbconfig->fbconfigID; |
| req->pixmap = pixmap; |
| req->glxpixmap = xid = XAllocID(dpy); |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| return xid; |
| } |
| |
| PUBLIC GLXContext |
| glXCreateContextWithConfigSGIX(Display * dpy, |
| GLXFBConfigSGIX config, int renderType, |
| GLXContext shareList, Bool allowDirect) |
| { |
| GLXContext gc = NULL; |
| const __GLcontextModes *const fbconfig = (__GLcontextModes *) config; |
| __GLXscreenConfigs *psc; |
| |
| |
| if ((dpy == NULL) || (config == NULL)) { |
| return None; |
| } |
| |
| psc = GetGLXScreenConfigs(dpy, fbconfig->screen); |
| if ((psc != NULL) |
| && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) { |
| gc = CreateContext(dpy, NULL, (__GLcontextModes *) config, shareList, |
| allowDirect, None, False, renderType); |
| } |
| |
| return gc; |
| } |
| |
| |
| PUBLIC GLXFBConfigSGIX |
| glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis) |
| { |
| __GLXdisplayPrivate *priv; |
| __GLXscreenConfigs *psc = NULL; |
| |
| 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_SGIX_swap_group |
| */ |
| static void |
| __glXJoinSwapGroupSGIX(Display * dpy, GLXDrawable drawable, |
| GLXDrawable member) |
| { |
| (void) dpy; |
| (void) drawable; |
| (void) member; |
| } |
| |
| |
| /* |
| ** GLX_SGIX_swap_barrier |
| */ |
| static void |
| __glXBindSwapBarrierSGIX(Display * dpy, GLXDrawable drawable, int barrier) |
| { |
| (void) dpy; |
| (void) drawable; |
| (void) barrier; |
| } |
| |
| static Bool |
| __glXQueryMaxSwapBarriersSGIX(Display * dpy, int screen, int *max) |
| { |
| (void) dpy; |
| (void) screen; |
| (void) max; |
| return False; |
| } |
| |
| |
| /* |
| ** GLX_OML_sync_control |
| */ |
| static Bool |
| __glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable, |
| int64_t * ust, int64_t * msc, int64_t * sbc) |
| { |
| __GLXdisplayPrivate * const priv = __glXInitialize(dpy); |
| int i, ret; |
| __GLXDRIdrawable *pdraw; |
| __GLXscreenConfigs *psc; |
| |
| if (!priv) |
| return False; |
| |
| pdraw = GetGLXDRIDrawable(dpy, drawable, &i); |
| psc = &priv->screenConfigs[i]; |
| |
| #if defined(__DRI_SWAP_BUFFER_COUNTER) && defined(__DRI_MEDIA_STREAM_COUNTER) |
| if (pdraw && psc->sbc && psc->sbc) |
| return ( (pdraw && psc->sbc && psc->msc) |
| && ((*psc->msc->getMSC)(psc->driScreen, msc) == 0) |
| && ((*psc->sbc->getSBC)(pdraw->driDrawable, sbc) == 0) |
| && (__glXGetUST(ust) == 0) ); |
| #endif |
| if (pdraw && psc && psc->driScreen && psc->driScreen->getDrawableMSC) { |
| ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc); |
| return ret; |
| } |
| |
| return False; |
| } |
| |
| #ifdef GLX_DIRECT_RENDERING |
| _X_HIDDEN GLboolean |
| __driGetMscRateOML(__DRIdrawable * draw, |
| int32_t * numerator, int32_t * denominator, void *private) |
| { |
| #ifdef XF86VIDMODE |
| __GLXscreenConfigs *psc; |
| XF86VidModeModeLine mode_line; |
| int dot_clock; |
| int i; |
| __GLXDRIdrawable *glxDraw = private; |
| |
| psc = glxDraw->psc; |
| if (XF86VidModeQueryVersion(psc->dpy, &i, &i) && |
| XF86VidModeGetModeLine(psc->dpy, psc->scr, &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; |
| |
| return True; |
| } |
| else |
| return False; |
| #else |
| return False; |
| #endif |
| } |
| #endif |
| |
| /** |
| * 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. |
| */ |
| |
| _X_HIDDEN GLboolean |
| __glXGetMscRateOML(Display * dpy, GLXDrawable drawable, |
| int32_t * numerator, int32_t * denominator) |
| { |
| #if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE ) |
| __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable, NULL); |
| |
| if (draw == NULL) |
| return False; |
| |
| return __driGetMscRateOML(draw->driDrawable, numerator, denominator, draw); |
| #else |
| (void) dpy; |
| (void) drawable; |
| (void) numerator; |
| (void) denominator; |
| #endif |
| return False; |
| } |
| |
| |
| static int64_t |
| __glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable, |
| int64_t target_msc, int64_t divisor, int64_t remainder) |
| { |
| GLXContext gc = __glXGetCurrentContext(); |
| int screen; |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen); |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| |
| if (!pdraw || !gc->driContext) /* no GLX for this */ |
| return -1; |
| |
| /* 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; |
| |
| #ifdef __DRI_SWAP_BUFFER_COUNTER |
| if (psc->counters != NULL) |
| return (*psc->sbc->swapBuffersMSC)(pdraw->driDrawable, target_msc, |
| divisor, remainder); |
| #endif |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (psc->driScreen && psc->driScreen->swapBuffers) |
| return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor, |
| remainder); |
| #endif |
| |
| return -1; |
| } |
| |
| |
| static Bool |
| __glXWaitForMscOML(Display * dpy, GLXDrawable drawable, |
| int64_t target_msc, int64_t divisor, |
| int64_t remainder, int64_t * ust, |
| int64_t * msc, int64_t * sbc) |
| { |
| int screen; |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen); |
| __GLXscreenConfigs * const psc = GetGLXScreenConfigs( dpy, screen ); |
| int ret; |
| |
| fprintf(stderr, "waitmsc: %lld, %lld, %lld\n", target_msc, divisor, |
| remainder); |
| |
| /* 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; |
| |
| #ifdef __DRI_MEDIA_STREAM_COUNTER |
| if (pdraw != NULL && psc->msc != NULL) { |
| fprintf(stderr, "dri1 msc\n"); |
| ret = (*psc->msc->waitForMSC) (pdraw->driDrawable, 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)); |
| } |
| #endif |
| if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) { |
| ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder, |
| ust, msc, sbc); |
| return ret; |
| } |
| |
| fprintf(stderr, "no drawable??\n"); |
| return False; |
| } |
| |
| |
| static Bool |
| __glXWaitForSbcOML(Display * dpy, GLXDrawable drawable, |
| int64_t target_sbc, int64_t * ust, |
| int64_t * msc, int64_t * sbc) |
| { |
| int screen; |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(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; |
| #ifdef __DRI_SWAP_BUFFER_COUNTER |
| if (pdraw != NULL && psc->sbc != NULL) { |
| ret = |
| (*psc->sbc->waitForSBC) (pdraw->driDrawable, 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)); |
| } |
| #endif |
| if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) { |
| ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc); |
| return ret; |
| } |
| return False; |
| } |
| |
| |
| /** |
| * GLX_MESA_allocate_memory |
| */ |
| /*@{*/ |
| |
| PUBLIC void * |
| glXAllocateMemoryMESA(Display * dpy, int scrn, |
| size_t size, float readFreq, |
| float writeFreq, float priority) |
| { |
| #ifdef __DRI_ALLOCATE |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, scrn); |
| |
| if (psc && psc->allocate) |
| return (*psc->allocate->allocateMemory) (psc->__driScreen, size, |
| readFreq, writeFreq, priority); |
| |
| #else |
| (void) dpy; |
| (void) scrn; |
| (void) size; |
| (void) readFreq; |
| (void) writeFreq; |
| (void) priority; |
| #endif /* __DRI_ALLOCATE */ |
| |
| return NULL; |
| } |
| |
| |
| PUBLIC void |
| glXFreeMemoryMESA(Display * dpy, int scrn, void *pointer) |
| { |
| #ifdef __DRI_ALLOCATE |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, scrn); |
| |
| if (psc && psc->allocate) |
| (*psc->allocate->freeMemory) (psc->__driScreen, pointer); |
| |
| #else |
| (void) dpy; |
| (void) scrn; |
| (void) pointer; |
| #endif /* __DRI_ALLOCATE */ |
| } |
| |
| |
| PUBLIC GLuint |
| glXGetMemoryOffsetMESA(Display * dpy, int scrn, const void *pointer) |
| { |
| #ifdef __DRI_ALLOCATE |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, scrn); |
| |
| if (psc && psc->allocate) |
| return (*psc->allocate->memoryOffset) (psc->__driScreen, 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 |
| */ |
| static Bool |
| __glXReleaseBuffersMESA(Display * dpy, GLXDrawable d) |
| { |
| (void) dpy; |
| (void) d; |
| return False; |
| } |
| |
| |
| PUBLIC GLXPixmap |
| glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual, |
| Pixmap pixmap, Colormap cmap) |
| { |
| (void) dpy; |
| (void) visual; |
| (void) pixmap; |
| (void) cmap; |
| return 0; |
| } |
| |
| /*@}*/ |
| |
| |
| /** |
| * GLX_MESA_copy_sub_buffer |
| */ |
| #define X_GLXvop_CopySubBufferMESA 5154 /* temporary */ |
| static void |
| __glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable, |
| int x, int y, int width, int height) |
| { |
| xGLXVendorPrivateReq *req; |
| GLXContext gc; |
| GLXContextTag tag; |
| CARD32 *drawable_ptr; |
| INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr; |
| CARD8 opcode; |
| |
| #ifdef __DRI_COPY_SUB_BUFFER |
| int screen; |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, &screen); |
| if (pdraw != NULL) { |
| __GLXscreenConfigs *const psc = GetGLXScreenConfigs(dpy, screen); |
| if (psc->driScreen->copySubBuffer != NULL) { |
| glFlush(); |
| (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height); |
| } |
| |
| 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; |
| } |
| |
| LockDisplay(dpy); |
| GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req); |
| req->reqType = opcode; |
| req->glxCode = X_GLXVendorPrivate; |
| req->vendorCode = X_GLXvop_CopySubBufferMESA; |
| req->contextTag = tag; |
| |
| drawable_ptr = (CARD32 *) (req + 1); |
| x_ptr = (INT32 *) (drawable_ptr + 1); |
| y_ptr = (INT32 *) (drawable_ptr + 2); |
| w_ptr = (INT32 *) (drawable_ptr + 3); |
| h_ptr = (INT32 *) (drawable_ptr + 4); |
| |
| *drawable_ptr = drawable; |
| *x_ptr = x; |
| *y_ptr = y; |
| *w_ptr = width; |
| *h_ptr = height; |
| |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| |
| /** |
| * GLX_EXT_texture_from_pixmap |
| */ |
| /*@{*/ |
| static void |
| __glXBindTexImageEXT(Display * dpy, |
| GLXDrawable drawable, int buffer, const int *attrib_list) |
| { |
| xGLXVendorPrivateReq *req; |
| GLXContext gc = __glXGetCurrentContext(); |
| CARD32 *drawable_ptr; |
| INT32 *buffer_ptr; |
| CARD32 *num_attrib_ptr; |
| CARD32 *attrib_ptr; |
| CARD8 opcode; |
| unsigned int i; |
| |
| if (gc == NULL) |
| return; |
| |
| i = 0; |
| if (attrib_list) { |
| while (attrib_list[i * 2] != None) |
| i++; |
| } |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (gc->driContext) { |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable, NULL); |
| |
| if (pdraw != NULL) { |
| if (pdraw->psc->texBuffer->base.version >= 2 && |
| pdraw->psc->texBuffer->setTexBuffer2 != NULL) { |
| (*pdraw->psc->texBuffer->setTexBuffer2) (gc->__driContext, |
| pdraw->textureTarget, |
| pdraw->textureFormat, |
| pdraw->driDrawable); |
| } |
| else { |
| (*pdraw->psc->texBuffer->setTexBuffer) (gc->__driContext, |
| pdraw->textureTarget, |
| pdraw->driDrawable); |
| } |
| } |
| return; |
| } |
| #endif |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) |
| return; |
| |
| LockDisplay(dpy); |
| GetReqExtra(GLXVendorPrivate, 12 + 8 * i, req); |
| req->reqType = opcode; |
| req->glxCode = X_GLXVendorPrivate; |
| req->vendorCode = X_GLXvop_BindTexImageEXT; |
| req->contextTag = gc->currentContextTag; |
| |
| drawable_ptr = (CARD32 *) (req + 1); |
| buffer_ptr = (INT32 *) (drawable_ptr + 1); |
| num_attrib_ptr = (CARD32 *) (buffer_ptr + 1); |
| attrib_ptr = (CARD32 *) (num_attrib_ptr + 1); |
| |
| *drawable_ptr = drawable; |
| *buffer_ptr = buffer; |
| *num_attrib_ptr = (CARD32) i; |
| |
| i = 0; |
| if (attrib_list) { |
| while (attrib_list[i * 2] != None) { |
| *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 0]; |
| *attrib_ptr++ = (CARD32) attrib_list[i * 2 + 1]; |
| i++; |
| } |
| } |
| |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| static void |
| __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer) |
| { |
| xGLXVendorPrivateReq *req; |
| GLXContext gc = __glXGetCurrentContext(); |
| CARD32 *drawable_ptr; |
| INT32 *buffer_ptr; |
| CARD8 opcode; |
| |
| if (gc == NULL) |
| return; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (gc->driContext) |
| return; |
| #endif |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) |
| return; |
| |
| LockDisplay(dpy); |
| GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32), req); |
| req->reqType = opcode; |
| req->glxCode = X_GLXVendorPrivate; |
| req->vendorCode = X_GLXvop_ReleaseTexImageEXT; |
| req->contextTag = gc->currentContextTag; |
| |
| drawable_ptr = (CARD32 *) (req + 1); |
| buffer_ptr = (INT32 *) (drawable_ptr + 1); |
| |
| *drawable_ptr = drawable; |
| *buffer_ptr = buffer; |
| |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| /*@}*/ |
| |
| /** |
| * \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 |
| */ |
| _X_HIDDEN 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_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI), |
| |
| /*** GLX_SGI_video_sync ***/ |
| GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI), |
| GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI), |
| |
| /*** GLX_SGI_make_current_read ***/ |
| GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent), |
| GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable), |
| |
| /*** 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_SGIX_swap_group ***/ |
| GLX_FUNCTION2(glXJoinSwapGroupSGIX, __glXJoinSwapGroupSGIX), |
| |
| /*** GLX_SGIX_swap_barrier ***/ |
| GLX_FUNCTION2(glXBindSwapBarrierSGIX, __glXBindSwapBarrierSGIX), |
| GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX, __glXQueryMaxSwapBarriersSGIX), |
| |
| /*** GLX_MESA_allocate_memory ***/ |
| GLX_FUNCTION(glXAllocateMemoryMESA), |
| GLX_FUNCTION(glXFreeMemoryMESA), |
| GLX_FUNCTION(glXGetMemoryOffsetMESA), |
| |
| /*** GLX_MESA_copy_sub_buffer ***/ |
| GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA), |
| |
| /*** GLX_MESA_pixmap_colormap ***/ |
| GLX_FUNCTION(glXCreateGLXPixmapMESA), |
| |
| /*** GLX_MESA_release_buffers ***/ |
| GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA), |
| |
| /*** GLX_MESA_swap_control ***/ |
| GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA), |
| GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA), |
| |
| /*** GLX_MESA_swap_frame_usage ***/ |
| GLX_FUNCTION2(glXBeginFrameTrackingMESA, __glXBeginFrameTrackingMESA), |
| GLX_FUNCTION2(glXEndFrameTrackingMESA, __glXEndFrameTrackingMESA), |
| GLX_FUNCTION2(glXGetFrameUsageMESA, __glXGetFrameUsageMESA), |
| GLX_FUNCTION2(glXQueryFrameTrackingMESA, __glXQueryFrameTrackingMESA), |
| |
| /*** GLX_ARB_get_proc_address ***/ |
| GLX_FUNCTION(glXGetProcAddressARB), |
| |
| /*** GLX 1.4 ***/ |
| GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB), |
| |
| /*** GLX_OML_sync_control ***/ |
| GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML), |
| GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML), |
| GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML), |
| GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML), |
| GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML), |
| |
| /*** GLX_EXT_texture_from_pixmap ***/ |
| GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT), |
| GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT), |
| |
| #ifdef GLX_DIRECT_RENDERING |
| /*** DRI configuration ***/ |
| GLX_FUNCTION(glXGetScreenDriver), |
| GLX_FUNCTION(glXGetDriverConfig), |
| #endif |
| |
| {NULL, NULL} /* end of list */ |
| }; |
| |
| |
| static const GLvoid * |
| get_glx_proc_address(const char *funcName) |
| { |
| GLuint i; |
| |
| /* try static functions */ |
| for (i = 0; GLX_functions[i].Name; i++) { |
| if (strcmp(GLX_functions[i].Name, funcName) == 0) |
| return GLX_functions[i].Address; |
| } |
| |
| return NULL; |
| } |
| |
| |
| /** |
| * Get the address of a named GL function. This is the pre-GLX 1.4 name for |
| * \c glXGetProcAddress. |
| * |
| * \param procName Name of a GL or GLX function. |
| * \returns A pointer to the named function |
| * |
| * \sa glXGetProcAddress |
| */ |
| PUBLIC void (*glXGetProcAddressARB(const GLubyte * procName)) (void) |
| { |
| typedef void (*gl_function) (void); |
| gl_function f; |
| |
| |
| /* Search the table of GLX and internal functions first. If that |
| * fails and the supplied name could be a valid core GL name, try |
| * searching the core GL function table. This check is done to prevent |
| * DRI based drivers from searching the core GL function table for |
| * internal API functions. |
| */ |
| |
| f = (gl_function) get_glx_proc_address((const char *) procName); |
| if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l') |
| && (procName[2] != 'X')) { |
| f = (gl_function) _glapi_get_proc_address((const char *) procName); |
| } |
| |
| return f; |
| } |
| |
| /** |
| * Get the address of a named GL function. This is the GLX 1.4 name for |
| * \c glXGetProcAddressARB. |
| * |
| * \param procName Name of a GL or GLX function. |
| * \returns A pointer to the named function |
| * |
| * \sa glXGetProcAddressARB |
| */ |
| PUBLIC void (*glXGetProcAddress(const GLubyte * procName)) (void) |
| #if defined(__GNUC__) && !defined(GLX_ALIAS_UNSUPPORTED) |
| __attribute__ ((alias("glXGetProcAddressARB"))); |
| #else |
| { |
| return glXGetProcAddressARB(procName); |
| } |
| #endif /* __GNUC__ */ |
| |
| |
| #ifdef GLX_DIRECT_RENDERING |
| /** |
| * 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. |
| */ |
| _X_HIDDEN 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 */ |