| /* |
| * 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 "indirect.h" |
| #include "glx_error.h" |
| |
| #ifdef GLX_DIRECT_RENDERING |
| #ifdef GLX_USE_APPLEGL |
| #include "apple/apple_glx_context.h" |
| #include "apple/apple_glx.h" |
| #include "util/debug.h" |
| #else |
| #include <sys/time.h> |
| #ifndef GLX_USE_WINDOWSGL |
| #include <X11/extensions/xf86vmode.h> |
| #endif /* GLX_USE_WINDOWSGL */ |
| #endif |
| #endif |
| |
| #include <X11/Xlib-xcb.h> |
| #include <xcb/xcb.h> |
| #include <xcb/glx.h> |
| #include "GL/mesa_glinterop.h" |
| |
| static const char __glXGLXClientVendorName[] = "Mesa Project and SGI"; |
| static const char __glXGLXClientVersion[] = "1.4"; |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| |
| /** |
| * 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) |
| { |
| struct glx_display *priv = __glXInitialize(dpy); |
| __GLXDRIdrawable *pdraw; |
| |
| if (priv == NULL) |
| return NULL; |
| |
| if (__glxHashLookup(priv->drawHash, drawable, (void *) &pdraw) == 0) |
| return pdraw; |
| |
| return NULL; |
| } |
| |
| #endif |
| |
| _X_HIDDEN struct glx_drawable * |
| GetGLXDrawable(Display *dpy, GLXDrawable drawable) |
| { |
| struct glx_display *priv = __glXInitialize(dpy); |
| struct glx_drawable *glxDraw; |
| |
| if (priv == NULL) |
| return NULL; |
| |
| if (__glxHashLookup(priv->glXDrawHash, drawable, (void *) &glxDraw) == 0) |
| return glxDraw; |
| |
| return NULL; |
| } |
| |
| _X_HIDDEN int |
| InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw, XID xDrawable, |
| GLXDrawable drawable) |
| { |
| struct glx_display *priv = __glXInitialize(dpy); |
| |
| if (!priv) |
| return -1; |
| |
| glxDraw->xDrawable = xDrawable; |
| glxDraw->drawable = drawable; |
| glxDraw->lastEventSbc = 0; |
| glxDraw->eventSbcWrap = 0; |
| |
| return __glxHashInsert(priv->glXDrawHash, drawable, glxDraw); |
| } |
| |
| _X_HIDDEN void |
| DestroyGLXDrawable(Display *dpy, GLXDrawable drawable) |
| { |
| struct glx_display *priv = __glXInitialize(dpy); |
| struct glx_drawable *glxDraw; |
| |
| if (!priv) |
| return; |
| |
| glxDraw = GetGLXDrawable(dpy, drawable); |
| __glxHashDelete(priv->glXDrawHash, drawable); |
| free(glxDraw); |
| } |
| |
| /** |
| * 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? |
| */ |
| |
| _X_HIDDEN struct glx_screen * |
| GetGLXScreenConfigs(Display * dpy, int scrn) |
| { |
| struct glx_display *const priv = __glXInitialize(dpy); |
| |
| return (priv |
| && priv->screens != |
| NULL) ? priv->screens[scrn] : NULL; |
| } |
| |
| |
| static int |
| GetGLXPrivScreenConfig(Display * dpy, int scrn, struct glx_display ** ppriv, |
| struct glx_screen ** 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)->screens[scrn]; |
| if ((*ppsc)->configs == NULL && (*ppsc)->visuals == 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 struct glx_config structure is returned. Otherwise, \c NULL |
| * is returned. |
| */ |
| static struct glx_config * |
| ValidateGLXFBConfig(Display * dpy, GLXFBConfig fbconfig) |
| { |
| struct glx_display *const priv = __glXInitialize(dpy); |
| int num_screens = ScreenCount(dpy); |
| unsigned i; |
| struct glx_config *config; |
| |
| if (priv != NULL) { |
| for (i = 0; i < num_screens; i++) { |
| for (config = priv->screens[i]->configs; config != NULL; |
| config = config->next) { |
| if (config == (struct glx_config *) fbconfig) { |
| return config; |
| } |
| } |
| } |
| } |
| |
| return NULL; |
| } |
| |
| /** |
| * Verifies context's GLX_RENDER_TYPE value with config. |
| * |
| * \param config GLX FBConfig which will support the returned renderType. |
| * \param renderType The context render type to be verified. |
| * \return True if the value of context renderType was approved, or 0 if no |
| * valid value was found. |
| */ |
| Bool |
| validate_renderType_against_config(const struct glx_config *config, |
| int renderType) |
| { |
| /* GLX_EXT_no_config_context supports any render type */ |
| if (!config) |
| return True; |
| |
| switch (renderType) { |
| case GLX_RGBA_TYPE: |
| return (config->renderType & GLX_RGBA_BIT) != 0; |
| case GLX_COLOR_INDEX_TYPE: |
| return (config->renderType & GLX_COLOR_INDEX_BIT) != 0; |
| case GLX_RGBA_FLOAT_TYPE_ARB: |
| return (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) != 0; |
| case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT: |
| return (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) != 0; |
| default: |
| break; |
| } |
| return 0; |
| } |
| |
| _X_HIDDEN Bool |
| glx_context_init(struct glx_context *gc, |
| struct glx_screen *psc, struct glx_config *config) |
| { |
| gc->majorOpcode = __glXSetupForCommand(psc->display->dpy); |
| if (!gc->majorOpcode) |
| return False; |
| |
| gc->screen = psc->scr; |
| gc->psc = psc; |
| gc->config = config; |
| gc->isDirect = GL_TRUE; |
| gc->currentContextTag = -1; |
| |
| return True; |
| } |
| |
| /** |
| * Determine if a context uses direct rendering. |
| * |
| * \param dpy Display where the context was created. |
| * \param contextID ID of the context to be tested. |
| * \param error Out parameter, set to True on error if not NULL |
| * |
| * \returns \c True if the context is direct rendering or not. |
| */ |
| static Bool |
| __glXIsDirect(Display * dpy, GLXContextID contextID, Bool *error) |
| { |
| CARD8 opcode; |
| xcb_connection_t *c; |
| xcb_generic_error_t *err; |
| xcb_glx_is_direct_reply_t *reply; |
| Bool is_direct; |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return False; |
| } |
| |
| c = XGetXCBConnection(dpy); |
| reply = xcb_glx_is_direct_reply(c, xcb_glx_is_direct(c, contextID), &err); |
| is_direct = (reply != NULL && reply->is_direct) ? True : False; |
| |
| if (err != NULL) { |
| if (error) |
| *error = True; |
| __glXSendErrorForXcb(dpy, err); |
| free(err); |
| } |
| |
| free(reply); |
| |
| return is_direct; |
| } |
| |
| /** |
| * Create a new context. |
| * |
| * \param renderType For FBConfigs, what is the rendering type? |
| */ |
| |
| static GLXContext |
| CreateContext(Display *dpy, int generic_id, struct glx_config *config, |
| GLXContext shareList_user, Bool allowDirect, |
| unsigned code, int renderType, int screen) |
| { |
| struct glx_context *gc; |
| struct glx_screen *psc; |
| struct glx_context *shareList = (struct glx_context *) shareList_user; |
| if (dpy == NULL) |
| return NULL; |
| |
| psc = GetGLXScreenConfigs(dpy, screen); |
| if (psc == NULL) |
| return NULL; |
| |
| if (generic_id == None) |
| return NULL; |
| |
| gc = NULL; |
| #ifdef GLX_USE_APPLEGL |
| gc = applegl_create_context(psc, config, shareList, renderType); |
| #else |
| if (allowDirect && psc->vtable->create_context) |
| gc = psc->vtable->create_context(psc, config, shareList, renderType); |
| if (!gc) |
| gc = indirect_create_context(psc, config, shareList, renderType); |
| #endif |
| if (!gc) |
| return NULL; |
| |
| LockDisplay(dpy); |
| switch (code) { |
| case X_GLXCreateContext: { |
| 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 = generic_id; |
| req->screen = screen; |
| req->shareList = shareList ? shareList->xid : None; |
| req->isDirect = gc->isDirect; |
| break; |
| } |
| |
| case X_GLXCreateNewContext: { |
| 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 = generic_id; |
| req->screen = screen; |
| req->renderType = renderType; |
| req->shareList = shareList ? shareList->xid : None; |
| req->isDirect = gc->isDirect; |
| break; |
| } |
| |
| case X_GLXvop_CreateContextWithConfigSGIX: { |
| 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 = generic_id; |
| req->screen = screen; |
| req->renderType = renderType; |
| req->shareList = shareList ? shareList->xid : None; |
| req->isDirect = gc->isDirect; |
| break; |
| } |
| |
| default: |
| /* What to do here? This case is the sign of an internal error. It |
| * should never be reachable. |
| */ |
| break; |
| } |
| |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| |
| gc->share_xid = shareList ? shareList->xid : None; |
| gc->imported = GL_FALSE; |
| |
| /* Unlike most X resource creation requests, we're about to return a handle |
| * with client-side state, not just an XID. To simplify error handling |
| * elsewhere in libGL, force a round-trip here to ensure the CreateContext |
| * request above succeeded. |
| */ |
| { |
| Bool error = False; |
| int isDirect = __glXIsDirect(dpy, gc->xid, &error); |
| |
| if (error != False || isDirect != gc->isDirect) { |
| gc->vtable->destroy(gc); |
| gc = NULL; |
| } |
| } |
| |
| return (GLXContext) gc; |
| } |
| |
| _GLX_PUBLIC GLXContext |
| glXCreateContext(Display * dpy, XVisualInfo * vis, |
| GLXContext shareList, Bool allowDirect) |
| { |
| struct glx_config *config = NULL; |
| int renderType = GLX_RGBA_TYPE; |
| |
| #if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL) |
| struct glx_screen *const psc = GetGLXScreenConfigs(dpy, vis->screen); |
| |
| if (psc) |
| config = glx_config_find_visual(psc->visuals, vis->visualid); |
| |
| if (config == NULL) { |
| __glXSendError(dpy, BadValue, vis->visualid, X_GLXCreateContext, True); |
| return None; |
| } |
| |
| /* Choose the context render type based on DRI config values. It is |
| * unusual to set this type from config, but we have no other choice, as |
| * this old API does not provide renderType parameter. |
| */ |
| if (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) { |
| renderType = GLX_RGBA_FLOAT_TYPE_ARB; |
| } else if (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) { |
| renderType = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT; |
| } else if (config->renderType & GLX_RGBA_BIT) { |
| renderType = GLX_RGBA_TYPE; |
| } else if (config->renderType & GLX_COLOR_INDEX_BIT) { |
| renderType = GLX_COLOR_INDEX_TYPE; |
| } else if (config->rgbMode) { |
| /* If we're here, then renderType is not set correctly. Let's use a |
| * safeguard - any TrueColor or DirectColor mode is RGB mode. Such |
| * default value is needed by old DRI drivers, which didn't set |
| * renderType correctly as the value was just ignored. |
| */ |
| renderType = GLX_RGBA_TYPE; |
| } else { |
| /* Safeguard - only one option left, all non-RGB modes are indexed |
| * modes. Again, this allows drivers with invalid renderType to work |
| * properly. |
| */ |
| renderType = GLX_COLOR_INDEX_TYPE; |
| } |
| #endif |
| |
| return CreateContext(dpy, vis->visualid, config, shareList, allowDirect, |
| X_GLXCreateContext, renderType, vis->screen); |
| } |
| |
| static void |
| glx_send_destroy_context(Display *dpy, XID xid) |
| { |
| CARD8 opcode = __glXSetupForCommand(dpy); |
| xGLXDestroyContextReq *req; |
| |
| LockDisplay(dpy); |
| GetReq(GLXDestroyContext, req); |
| req->reqType = opcode; |
| req->glxCode = X_GLXDestroyContext; |
| req->context = xid; |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| /* |
| ** Destroy the named context |
| */ |
| |
| _GLX_PUBLIC void |
| glXDestroyContext(Display * dpy, GLXContext ctx) |
| { |
| struct glx_context *gc = (struct glx_context *) ctx; |
| |
| if (gc == NULL || gc->xid == None) |
| return; |
| |
| __glXLock(); |
| if (!gc->imported) |
| glx_send_destroy_context(dpy, gc->xid); |
| |
| 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. |
| */ |
| gc->xid = None; |
| } else { |
| gc->vtable->destroy(gc); |
| } |
| __glXUnlock(); |
| } |
| |
| /* |
| ** Return the major and minor version #s for the GLX extension |
| */ |
| _GLX_PUBLIC Bool |
| glXQueryVersion(Display * dpy, int *major, int *minor) |
| { |
| struct glx_display *priv; |
| |
| /* Init the extension. This fetches the major and minor version. */ |
| priv = __glXInitialize(dpy); |
| if (!priv) |
| return False; |
| |
| if (major) |
| *major = priv->majorVersion; |
| if (minor) |
| *minor = priv->minorVersion; |
| return True; |
| } |
| |
| /* |
| ** Query the existence of the GLX extension |
| */ |
| _GLX_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. |
| */ |
| _GLX_PUBLIC void |
| glXWaitGL(void) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc->vtable->wait_gl) |
| gc->vtable->wait_gl(gc); |
| } |
| |
| /* |
| ** Put a barrier in the token stream that forces X to finish its |
| ** work before GL can proceed. |
| */ |
| _GLX_PUBLIC void |
| glXWaitX(void) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc->vtable->wait_x) |
| gc->vtable->wait_x(gc); |
| } |
| |
| _GLX_PUBLIC void |
| glXUseXFont(Font font, int first, int count, int listBase) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc->vtable->use_x_font) |
| gc->vtable->use_x_font(gc, font, first, count, listBase); |
| } |
| |
| /************************************************************************/ |
| |
| /* |
| ** Copy the source context to the destination context using the |
| ** attribute "mask". |
| */ |
| _GLX_PUBLIC void |
| glXCopyContext(Display * dpy, GLXContext source_user, |
| GLXContext dest_user, unsigned long mask) |
| { |
| struct glx_context *source = (struct glx_context *) source_user; |
| struct glx_context *dest = (struct glx_context *) dest_user; |
| #ifdef GLX_USE_APPLEGL |
| struct glx_context *gc = __glXGetCurrentContext(); |
| int errorcode; |
| bool x11error; |
| |
| if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext, |
| mask, &errorcode, &x11error)) { |
| __glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error); |
| } |
| |
| #else |
| xGLXCopyContextReq *req; |
| struct glx_context *gc = __glXGetCurrentContext(); |
| GLXContextTag tag; |
| CARD8 opcode; |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return; |
| } |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| 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(); |
| #endif /* GLX_USE_APPLEGL */ |
| } |
| |
| |
| /** |
| * \todo |
| * Shouldn't this function \b always return \c False when |
| * \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with |
| * the GLX protocol here at all? |
| */ |
| _GLX_PUBLIC Bool |
| glXIsDirect(Display * dpy, GLXContext gc_user) |
| { |
| struct glx_context *gc = (struct glx_context *) gc_user; |
| |
| if (!gc) { |
| return False; |
| } |
| else if (gc->isDirect) { |
| return True; |
| } |
| #ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */ |
| return False; |
| #else |
| return __glXIsDirect(dpy, gc->xid, NULL); |
| #endif |
| } |
| |
| _GLX_PUBLIC GLXPixmap |
| glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap) |
| { |
| #ifdef GLX_USE_APPLEGL |
| int screen = vis->screen; |
| struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen); |
| const struct glx_config *config; |
| |
| config = glx_config_find_visual(psc->visuals, vis->visualid); |
| |
| if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, config)) |
| return None; |
| |
| return pixmap; |
| #else |
| xGLXCreateGLXPixmapReq *req; |
| struct glx_drawable *glxDraw; |
| GLXPixmap xid; |
| CARD8 opcode; |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| struct glx_display *const priv = __glXInitialize(dpy); |
| |
| if (priv == NULL) |
| return None; |
| #endif |
| |
| opcode = __glXSetupForCommand(dpy); |
| if (!opcode) { |
| return None; |
| } |
| |
| glxDraw = malloc(sizeof(*glxDraw)); |
| if (!glxDraw) |
| 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(); |
| |
| if (InitGLXDrawable(dpy, glxDraw, pixmap, req->glxpixmap)) { |
| free(glxDraw); |
| return None; |
| } |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| do { |
| /* FIXME: Maybe delay __DRIdrawable creation until the drawable |
| * is actually bound to a context... */ |
| |
| __GLXDRIdrawable *pdraw; |
| struct glx_screen *psc; |
| struct glx_config *config; |
| |
| psc = priv->screens[vis->screen]; |
| if (psc->driScreen == NULL) |
| return xid; |
| |
| config = glx_config_find_visual(psc->visuals, vis->visualid); |
| pdraw = psc->driScreen->createDrawable(psc, pixmap, xid, config); |
| if (pdraw == NULL) { |
| fprintf(stderr, "failed to create pixmap\n"); |
| xid = None; |
| break; |
| } |
| |
| if (__glxHashInsert(priv->drawHash, xid, pdraw)) { |
| (*pdraw->destroyDrawable) (pdraw); |
| xid = None; |
| break; |
| } |
| } while (0); |
| |
| if (xid == None) { |
| xGLXDestroyGLXPixmapReq *dreq; |
| LockDisplay(dpy); |
| GetReq(GLXDestroyGLXPixmap, dreq); |
| dreq->reqType = opcode; |
| dreq->glxCode = X_GLXDestroyGLXPixmap; |
| dreq->glxpixmap = xid; |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| #endif |
| |
| return xid; |
| #endif |
| } |
| |
| /* |
| ** Destroy the named pixmap |
| */ |
| _GLX_PUBLIC void |
| glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap) |
| { |
| #ifdef GLX_USE_APPLEGL |
| if(apple_glx_pixmap_destroy(dpy, glxpixmap)) |
| __glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false); |
| #else |
| 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(); |
| |
| DestroyGLXDrawable(dpy, glxpixmap); |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| { |
| struct glx_display *const priv = __glXInitialize(dpy); |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap); |
| |
| if (priv != NULL && pdraw != NULL) { |
| (*pdraw->destroyDrawable) (pdraw); |
| __glxHashDelete(priv->drawHash, glxpixmap); |
| } |
| } |
| #endif |
| #endif /* GLX_USE_APPLEGL */ |
| } |
| |
| _GLX_PUBLIC void |
| glXSwapBuffers(Display * dpy, GLXDrawable drawable) |
| { |
| #ifdef GLX_USE_APPLEGL |
| struct glx_context * gc = __glXGetCurrentContext(); |
| if(gc != &dummyContext && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) { |
| apple_glx_swap_buffers(gc->driContext); |
| } else { |
| __glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false); |
| } |
| #else |
| struct glx_context *gc; |
| GLXContextTag tag; |
| CARD8 opcode; |
| xcb_connection_t *c; |
| |
| gc = __glXGetCurrentContext(); |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| { |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); |
| |
| if (pdraw != NULL) { |
| Bool flush = gc != &dummyContext && drawable == gc->currentDrawable; |
| |
| (*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0, flush); |
| 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. |
| */ |
| if ((gc != &dummyContext) && (dpy == gc->currentDpy) && |
| ((drawable == gc->currentDrawable) |
| || (drawable == gc->currentReadable))) { |
| tag = gc->currentContextTag; |
| } |
| else { |
| tag = 0; |
| } |
| |
| c = XGetXCBConnection(dpy); |
| xcb_glx_swap_buffers(c, tag, drawable); |
| xcb_flush(c); |
| #endif /* GLX_USE_APPLEGL */ |
| } |
| |
| |
| /* |
| ** Return configuration information for the given display, screen and |
| ** visual combination. |
| */ |
| _GLX_PUBLIC int |
| glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute, |
| int *value_return) |
| { |
| struct glx_display *priv; |
| struct glx_screen *psc; |
| struct glx_config *config; |
| int status; |
| |
| status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc); |
| if (status == Success) { |
| config = glx_config_find_visual(psc->visuals, vis->visualid); |
| |
| /* Lookup attribute after first finding a match on the visual */ |
| if (config != NULL) { |
| return glx_config_get(config, 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 = False; |
| status = Success; |
| } |
| |
| return status; |
| } |
| |
| /************************************************************************/ |
| |
| static void |
| init_fbconfig_for_chooser(struct glx_config * config, |
| GLboolean fbconfig_style_tags) |
| { |
| memset(config, 0, sizeof(struct glx_config)); |
| config->visualID = (XID) GLX_DONT_CARE; |
| config->visualType = GLX_DONT_CARE; |
| |
| /* glXChooseFBConfig specifies different defaults for these properties than |
| * glXChooseVisual. |
| */ |
| if (fbconfig_style_tags) { |
| config->rgbMode = GL_TRUE; |
| config->doubleBufferMode = GLX_DONT_CARE; |
| config->renderType = GLX_RGBA_BIT; |
| } |
| |
| config->drawableType = GLX_WINDOW_BIT; |
| 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->xRenderable = GLX_DONT_CARE; |
| config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE); |
| |
| config->swapMethod = GLX_DONT_CARE; |
| config->sRGBCapable = GLX_DONT_CARE; |
| } |
| |
| #define MATCH_DONT_CARE( param ) \ |
| do { \ |
| if ( ((int) a-> param != (int) GLX_DONT_CARE) \ |
| && (a-> param != b-> param) ) { \ |
| return False; \ |
| } \ |
| } while ( 0 ) |
| |
| #define MATCH_MINIMUM( param ) \ |
| do { \ |
| if ( ((int) a-> param != (int) 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 ) |
| |
| /* Test that all bits from a are contained in b */ |
| #define MATCH_MASK(param) \ |
| do { \ |
| if ( ((int) a-> param != (int) GLX_DONT_CARE) \ |
| && ((a->param & ~b->param) != 0) ) { \ |
| 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 struct glx_config * const a, |
| const struct glx_config * 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); |
| |
| MATCH_MASK(drawableType); |
| MATCH_MASK(renderType); |
| MATCH_DONT_CARE(sRGBCapable); |
| |
| /* 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 != (int) 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(struct glx_config **a, struct glx_config **b) |
| { |
| /* The order of these comparisons must NOT change. It is defined by |
| * the GLX 1.4 specification. |
| */ |
| |
| 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_SMALLER(sampleBuffers); |
| PREFER_SMALLER(samples); |
| |
| 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 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 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 is of the form |
| * expected by \c glXChooseFBConfig (where every tag has a |
| * value). |
| * \returns The number of valid elements left in \c configs. |
| * |
| * \sa glXChooseFBConfig, glXChooseFBConfigSGIX |
| */ |
| static int |
| choose_fbconfig(struct glx_config ** configs, int num_configs, |
| const int *attribList) |
| { |
| struct glx_config 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, GL_TRUE); |
| __glXInitializeVisualConfigFromTags(&test_config, 512, |
| (const INT32 *) attribList, |
| GL_TRUE, GL_TRUE); |
| |
| 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(struct glx_config *), |
| (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. |
| */ |
| _GLX_PUBLIC XVisualInfo * |
| glXChooseVisual(Display * dpy, int screen, int *attribList) |
| { |
| XVisualInfo *visualList = NULL; |
| struct glx_display *priv; |
| struct glx_screen *psc; |
| struct glx_config test_config; |
| struct glx_config *config; |
| struct glx_config *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 (config = psc->visuals; config != NULL; config = config->next) { |
| if (fbconfigs_compatible(&test_config, config) |
| && ((best_config == NULL) || |
| (fbconfig_compare (&config, &best_config) < 0))) { |
| XVisualInfo visualTemplate; |
| XVisualInfo *newList; |
| int i; |
| |
| visualTemplate.screen = screen; |
| visualTemplate.visualid = config->visualID; |
| newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask, |
| &visualTemplate, &i); |
| |
| if (newList) { |
| free(visualList); |
| visualList = newList; |
| best_config = config; |
| } |
| } |
| } |
| |
| #ifdef GLX_USE_APPLEGL |
| if(visualList && env_var_as_boolean("LIBGL_DUMP_VISUALID", false)) { |
| printf("visualid 0x%lx\n", visualList[0].visualid); |
| } |
| #endif |
| |
| return visualList; |
| } |
| |
| |
| _GLX_PUBLIC const char * |
| glXQueryExtensionsString(Display * dpy, int screen) |
| { |
| struct glx_screen *psc; |
| struct glx_display *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, |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| (psc->driScreen != NULL), |
| #else |
| GL_FALSE, |
| #endif |
| priv->minorVersion); |
| } |
| |
| return psc->effectiveGLXexts; |
| } |
| |
| _GLX_PUBLIC const char * |
| glXGetClientString(Display * dpy, int name) |
| { |
| (void) dpy; |
| |
| switch (name) { |
| case GLX_VENDOR: |
| return (__glXGLXClientVendorName); |
| case GLX_VERSION: |
| return (__glXGLXClientVersion); |
| case GLX_EXTENSIONS: |
| return (__glXGetClientExtensions()); |
| default: |
| return NULL; |
| } |
| } |
| |
| _GLX_PUBLIC const char * |
| glXQueryServerString(Display * dpy, int screen, int name) |
| { |
| struct glx_screen *psc; |
| struct glx_display *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; |
| } |
| |
| |
| /* |
| ** EXT_import_context |
| */ |
| |
| _GLX_PUBLIC Display * |
| glXGetCurrentDisplay(void) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| if (gc == &dummyContext) |
| return NULL; |
| return gc->currentDpy; |
| } |
| |
| _GLX_PUBLIC |
| GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (), |
| glXGetCurrentDisplay) |
| |
| #ifndef GLX_USE_APPLEGL |
| _GLX_PUBLIC GLXContext |
| glXImportContextEXT(Display *dpy, GLXContextID contextID) |
| { |
| struct glx_display *priv = __glXInitialize(dpy); |
| struct glx_screen *psc = NULL; |
| xGLXQueryContextReply reply; |
| CARD8 opcode; |
| struct glx_context *ctx; |
| int i, renderType = GLX_RGBA_TYPE; /* By default, assume RGBA context */ |
| XID share = None; |
| struct glx_config *mode = NULL; |
| uint32_t fbconfigID = 0; |
| uint32_t visualID = 0; |
| uint32_t screen = 0; |
| Bool got_screen = False; |
| |
| if (priv == NULL) |
| return NULL; |
| |
| /* The GLX_EXT_import_context spec says: |
| * |
| * "If <contextID> does not refer to a valid context, then a BadContext |
| * error is generated; if <contextID> refers to direct rendering |
| * context then no error is generated but glXImportContextEXT returns |
| * NULL." |
| * |
| * If contextID is None, generate BadContext on the client-side. Other |
| * sorts of invalid contexts will be detected by the server in the |
| * __glXIsDirect call. |
| */ |
| if (contextID == None) { |
| __glXSendError(dpy, GLXBadContext, contextID, X_GLXIsDirect, false); |
| return NULL; |
| } |
| |
| if (__glXIsDirect(dpy, contextID, NULL)) |
| return NULL; |
| |
| 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 = contextID; |
| } |
| 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 = contextID; |
| } |
| |
| if (_XReply(dpy, (xReply *) & reply, 0, False) && |
| reply.n < (INT32_MAX / 2)) { |
| |
| for (i = 0; i < reply.n; i++) { |
| int prop[2]; |
| |
| _XRead(dpy, (char *)prop, sizeof(prop)); |
| switch (prop[0]) { |
| case GLX_SCREEN: |
| screen = prop[1]; |
| got_screen = True; |
| break; |
| case GLX_SHARE_CONTEXT_EXT: |
| share = prop[1]; |
| break; |
| case GLX_VISUAL_ID_EXT: |
| visualID = prop[1]; |
| break; |
| case GLX_FBCONFIG_ID: |
| fbconfigID = prop[1]; |
| break; |
| case GLX_RENDER_TYPE: |
| renderType = prop[1]; |
| break; |
| } |
| } |
| } |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| |
| if (!got_screen) |
| return NULL; |
| |
| psc = GetGLXScreenConfigs(dpy, screen); |
| if (psc == NULL) |
| return NULL; |
| |
| if (fbconfigID != 0) { |
| mode = glx_config_find_fbconfig(psc->configs, fbconfigID); |
| } else if (visualID != 0) { |
| mode = glx_config_find_visual(psc->visuals, visualID); |
| } |
| |
| if (mode == NULL) |
| return NULL; |
| |
| ctx = indirect_create_context(psc, mode, NULL, renderType); |
| if (ctx == NULL) |
| return NULL; |
| |
| ctx->xid = contextID; |
| ctx->imported = GL_TRUE; |
| ctx->share_xid = share; |
| |
| return (GLXContext) ctx; |
| } |
| |
| #endif |
| |
| _GLX_PUBLIC int |
| glXQueryContext(Display * dpy, GLXContext ctx_user, int attribute, int *value) |
| { |
| struct glx_context *ctx = (struct glx_context *) ctx_user; |
| |
| switch (attribute) { |
| case GLX_SHARE_CONTEXT_EXT: |
| *value = ctx->share_xid; |
| break; |
| case GLX_VISUAL_ID_EXT: |
| *value = ctx->config ? ctx->config->visualID : None; |
| break; |
| case GLX_SCREEN: |
| *value = ctx->screen; |
| break; |
| case GLX_FBCONFIG_ID: |
| *value = ctx->config ? ctx->config->fbconfigID : None; |
| break; |
| case GLX_RENDER_TYPE: |
| *value = ctx->renderType; |
| break; |
| default: |
| return GLX_BAD_ATTRIBUTE; |
| } |
| return Success; |
| } |
| |
| _GLX_PUBLIC |
| GLX_ALIAS(int, glXQueryContextInfoEXT, |
| (Display * dpy, GLXContext ctx, int attribute, int *value), |
| (dpy, ctx, attribute, value), glXQueryContext) |
| |
| _GLX_PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx_user) |
| { |
| struct glx_context *ctx = (struct glx_context *) ctx_user; |
| |
| return (ctx == NULL) ? None : ctx->xid; |
| } |
| |
| _GLX_PUBLIC void |
| glXFreeContextEXT(Display *dpy, GLXContext ctx) |
| { |
| struct glx_context *gc = (struct glx_context *) ctx; |
| |
| if (gc == NULL || gc->xid == None) |
| return; |
| |
| /* The GLX_EXT_import_context spec says: |
| * |
| * "glXFreeContext does not free the server-side context information or |
| * the XID associated with the server-side context." |
| * |
| * Don't send any protocol. Just destroy the client-side tracking of the |
| * context. Also, only release the context structure if it's not current. |
| */ |
| __glXLock(); |
| if (gc->currentDpy) { |
| gc->xid = None; |
| } else { |
| gc->vtable->destroy(gc); |
| } |
| __glXUnlock(); |
| } |
| |
| _GLX_PUBLIC GLXFBConfig * |
| glXChooseFBConfig(Display * dpy, int screen, |
| const int *attribList, int *nitems) |
| { |
| struct glx_config **config_list; |
| int list_size; |
| |
| |
| config_list = (struct glx_config **) |
| glXGetFBConfigs(dpy, screen, &list_size); |
| |
| if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) { |
| list_size = choose_fbconfig(config_list, list_size, attribList); |
| if (list_size == 0) { |
| free(config_list); |
| config_list = NULL; |
| } |
| } |
| |
| *nitems = list_size; |
| return (GLXFBConfig *) config_list; |
| } |
| |
| |
| _GLX_PUBLIC GLXContext |
| glXCreateNewContext(Display * dpy, GLXFBConfig fbconfig, |
| int renderType, GLXContext shareList, Bool allowDirect) |
| { |
| struct glx_config *config = (struct glx_config *) fbconfig; |
| struct glx_config **config_list; |
| int list_size; |
| unsigned i; |
| |
| if (!config) { |
| __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false); |
| return NULL; |
| } |
| |
| config_list = (struct glx_config **) |
| glXGetFBConfigs(dpy, config->screen, &list_size); |
| |
| for (i = 0; i < list_size; i++) { |
| if (config_list[i] == config) |
| break; |
| } |
| free(config_list); |
| |
| if (i == list_size) { |
| __glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false); |
| return NULL; |
| } |
| |
| return CreateContext(dpy, config->fbconfigID, config, shareList, |
| allowDirect, X_GLXCreateNewContext, renderType, |
| config->screen); |
| } |
| |
| |
| _GLX_PUBLIC GLXDrawable |
| glXGetCurrentReadDrawable(void) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| return gc->currentReadable; |
| } |
| |
| |
| _GLX_PUBLIC GLXFBConfig * |
| glXGetFBConfigs(Display * dpy, int screen, int *nelements) |
| { |
| struct glx_display *priv = __glXInitialize(dpy); |
| struct glx_config **config_list = NULL; |
| struct glx_config *config; |
| unsigned num_configs = 0; |
| int i; |
| |
| *nelements = 0; |
| if (priv && (priv->screens != NULL) |
| && (screen >= 0) && (screen < ScreenCount(dpy)) |
| && (priv->screens[screen]->configs != NULL) |
| && (priv->screens[screen]->configs->fbconfigID |
| != (int) GLX_DONT_CARE)) { |
| |
| for (config = priv->screens[screen]->configs; config != NULL; |
| config = config->next) { |
| if (config->fbconfigID != (int) GLX_DONT_CARE) { |
| num_configs++; |
| } |
| } |
| |
| config_list = malloc(num_configs * sizeof *config_list); |
| if (config_list != NULL) { |
| *nelements = num_configs; |
| i = 0; |
| for (config = priv->screens[screen]->configs; config != NULL; |
| config = config->next) { |
| if (config->fbconfigID != (int) GLX_DONT_CARE) { |
| config_list[i] = config; |
| i++; |
| } |
| } |
| } |
| } |
| |
| return (GLXFBConfig *) config_list; |
| } |
| |
| |
| _GLX_PUBLIC int |
| glXGetFBConfigAttrib(Display * dpy, GLXFBConfig fbconfig, |
| int attribute, int *value) |
| { |
| struct glx_config *config = ValidateGLXFBConfig(dpy, fbconfig); |
| |
| if (config == NULL) |
| return GLXBadFBConfig; |
| |
| return glx_config_get(config, attribute, value); |
| } |
| |
| |
| _GLX_PUBLIC XVisualInfo * |
| glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig fbconfig) |
| { |
| XVisualInfo visualTemplate; |
| struct glx_config *config = (struct glx_config *) fbconfig; |
| int count; |
| |
| /* |
| ** Get a list of all visuals, return if list is empty |
| */ |
| visualTemplate.visualid = config->visualID; |
| return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count); |
| } |
| |
| #ifndef GLX_USE_APPLEGL |
| /* |
| ** GLX_SGI_swap_control |
| */ |
| static int |
| __glXSwapIntervalSGI(int interval) |
| { |
| xGLXVendorPrivateReq *req; |
| struct glx_context *gc = __glXGetCurrentContext(); |
| struct glx_screen *psc; |
| Display *dpy; |
| CARD32 *interval_ptr; |
| CARD8 opcode; |
| |
| if (gc == &dummyContext) { |
| return GLX_BAD_CONTEXT; |
| } |
| |
| if (interval <= 0) { |
| return GLX_BAD_VALUE; |
| } |
| |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (gc->isDirect && psc && psc->driScreen && |
| psc->driScreen->setSwapInterval) { |
| __GLXDRIdrawable *pdraw = |
| GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); |
| /* Simply ignore the command if the GLX drawable has been destroyed but |
| * the context is still bound. |
| */ |
| if (pdraw) |
| psc->driScreen->setSwapInterval(pdraw, interval); |
| return 0; |
| } |
| #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 |
| */ |
| static int |
| __glXSwapIntervalMESA(unsigned int interval) |
| { |
| #ifdef GLX_DIRECT_RENDERING |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc != &dummyContext && gc->isDirect) { |
| struct glx_screen *psc; |
| |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| if (psc && psc->driScreen && psc->driScreen->setSwapInterval) { |
| __GLXDRIdrawable *pdraw = |
| GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); |
| |
| /* Simply ignore the command if the GLX drawable has been destroyed but |
| * the context is still bound. |
| */ |
| if (!pdraw) |
| return 0; |
| |
| return psc->driScreen->setSwapInterval(pdraw, interval); |
| } |
| } |
| #endif |
| |
| return GLX_BAD_CONTEXT; |
| } |
| |
| |
| static int |
| __glXGetSwapIntervalMESA(void) |
| { |
| #ifdef GLX_DIRECT_RENDERING |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc != &dummyContext && gc->isDirect) { |
| struct glx_screen *psc; |
| |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| if (psc && psc->driScreen && psc->driScreen->getSwapInterval) { |
| __GLXDRIdrawable *pdraw = |
| GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); |
| if (pdraw) |
| return psc->driScreen->getSwapInterval(pdraw); |
| } |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| |
| /* |
| ** GLX_SGI_video_sync |
| */ |
| static int |
| __glXGetVideoSyncSGI(unsigned int *count) |
| { |
| int64_t ust, msc, sbc; |
| int ret; |
| struct glx_context *gc = __glXGetCurrentContext(); |
| struct glx_screen *psc; |
| #ifdef GLX_DIRECT_RENDERING |
| __GLXDRIdrawable *pdraw; |
| #endif |
| |
| if (gc == &dummyContext) |
| return GLX_BAD_CONTEXT; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (!gc->isDirect) |
| return GLX_BAD_CONTEXT; |
| #endif |
| |
| psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen); |
| #ifdef GLX_DIRECT_RENDERING |
| pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); |
| #endif |
| |
| /* 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 |
| if (psc && psc->driScreen && psc->driScreen->getDrawableMSC) { |
| ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc); |
| *count = (unsigned) msc; |
| return (ret == True) ? 0 : GLX_BAD_CONTEXT; |
| } |
| #endif |
| |
| return GLX_BAD_CONTEXT; |
| } |
| |
| static int |
| __glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| struct glx_screen *psc; |
| #ifdef GLX_DIRECT_RENDERING |
| __GLXDRIdrawable *pdraw; |
| #endif |
| int64_t ust, msc, sbc; |
| int ret; |
| |
| if (divisor <= 0 || remainder < 0) |
| return GLX_BAD_VALUE; |
| |
| if (gc == &dummyContext) |
| return GLX_BAD_CONTEXT; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (!gc->isDirect) |
| return GLX_BAD_CONTEXT; |
| #endif |
| |
| psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen); |
| #ifdef GLX_DIRECT_RENDERING |
| pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable); |
| #endif |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (psc && 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; |
| } |
| #endif |
| |
| return GLX_BAD_CONTEXT; |
| } |
| |
| #endif /* GLX_USE_APPLEGL */ |
| |
| /* |
| ** GLX_SGIX_fbconfig |
| ** Many of these functions are aliased to GLX 1.3 entry points in the |
| ** GLX_functions table. |
| */ |
| |
| _GLX_PUBLIC |
| GLX_ALIAS(int, glXGetFBConfigAttribSGIX, |
| (Display * dpy, GLXFBConfigSGIX config, int attribute, int *value), |
| (dpy, config, attribute, value), glXGetFBConfigAttrib) |
| |
| _GLX_PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX, |
| (Display * dpy, int screen, int *attrib_list, |
| int *nelements), (dpy, screen, attrib_list, nelements), |
| glXChooseFBConfig) |
| |
| _GLX_PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX, |
| (Display * dpy, GLXFBConfigSGIX config), |
| (dpy, config), glXGetVisualFromFBConfig) |
| |
| _GLX_PUBLIC GLXPixmap |
| glXCreateGLXPixmapWithConfigSGIX(Display * dpy, |
| GLXFBConfigSGIX fbconfig, |
| Pixmap pixmap) |
| { |
| #ifndef GLX_USE_APPLEGL |
| xGLXVendorPrivateWithReplyReq *vpreq; |
| xGLXCreateGLXPixmapWithConfigSGIXReq *req; |
| GLXPixmap xid = None; |
| CARD8 opcode; |
| struct glx_screen *psc; |
| #endif |
| struct glx_config *config = (struct glx_config *) fbconfig; |
| |
| |
| if ((dpy == NULL) || (config == NULL)) { |
| return None; |
| } |
| #ifdef GLX_USE_APPLEGL |
| if(apple_glx_pixmap_create(dpy, config->screen, pixmap, config)) |
| return None; |
| return pixmap; |
| #else |
| |
| psc = GetGLXScreenConfigs(dpy, config->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 = config->screen; |
| req->fbconfig = config->fbconfigID; |
| req->pixmap = pixmap; |
| req->glxpixmap = xid = XAllocID(dpy); |
| UnlockDisplay(dpy); |
| SyncHandle(); |
| } |
| |
| return xid; |
| #endif |
| } |
| |
| _GLX_PUBLIC GLXContext |
| glXCreateContextWithConfigSGIX(Display * dpy, |
| GLXFBConfigSGIX fbconfig, int renderType, |
| GLXContext shareList, Bool allowDirect) |
| { |
| GLXContext gc = NULL; |
| struct glx_config *config = (struct glx_config *) fbconfig; |
| struct glx_screen *psc; |
| |
| |
| if ((dpy == NULL) || (config == NULL)) { |
| return None; |
| } |
| |
| psc = GetGLXScreenConfigs(dpy, config->screen); |
| if ((psc != NULL) |
| && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) { |
| gc = CreateContext(dpy, config->fbconfigID, config, shareList, |
| allowDirect, |
| X_GLXvop_CreateContextWithConfigSGIX, renderType, |
| config->screen); |
| } |
| |
| return gc; |
| } |
| |
| |
| _GLX_PUBLIC GLXFBConfigSGIX |
| glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis) |
| { |
| struct glx_display *priv; |
| struct glx_screen *psc = NULL; |
| |
| if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) == Success) |
| && __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit) |
| && (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) { |
| return (GLXFBConfigSGIX) glx_config_find_visual(psc->configs, |
| vis->visualid); |
| } |
| |
| return NULL; |
| } |
| |
| #ifndef GLX_USE_APPLEGL |
| /* |
| ** GLX_OML_sync_control |
| */ |
| static Bool |
| __glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable, |
| int64_t * ust, int64_t * msc, int64_t * sbc) |
| { |
| struct glx_display * const priv = __glXInitialize(dpy); |
| int ret; |
| #ifdef GLX_DIRECT_RENDERING |
| __GLXDRIdrawable *pdraw; |
| #endif |
| struct glx_screen *psc; |
| |
| if (!priv) |
| return False; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| pdraw = GetGLXDRIDrawable(dpy, drawable); |
| psc = pdraw ? pdraw->psc : NULL; |
| if (pdraw && psc->driScreen->getDrawableMSC) { |
| ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc); |
| return ret; |
| } |
| #endif |
| |
| return False; |
| } |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| _X_HIDDEN GLboolean |
| __glxGetMscRate(struct glx_screen *psc, |
| int32_t * numerator, int32_t * denominator) |
| { |
| #if !defined(GLX_USE_WINDOWSGL) |
| XF86VidModeModeLine mode_line; |
| int dot_clock; |
| int i; |
| |
| 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; |
| } |
| #endif |
| |
| return False; |
| } |
| #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(GLX_USE_APPLEGL) && !defined(GLX_USE_WINDOWSGL) |
| __GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable); |
| |
| if (draw == NULL) |
| return False; |
| |
| return __glxGetMscRate(draw->psc, numerator, denominator); |
| #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) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| #ifdef GLX_DIRECT_RENDERING |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); |
| struct glx_screen *psc = pdraw ? pdraw->psc : NULL; |
| #endif |
| |
| if (gc == &dummyContext) /* no GLX for this */ |
| return -1; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (!pdraw || !gc->isDirect) |
| return -1; |
| #endif |
| |
| /* 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 (target_msc == 0 && divisor == 0 && remainder == 0) |
| remainder = 1; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| if (psc->driScreen && psc->driScreen->swapBuffers) |
| return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor, |
| remainder, False); |
| #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) |
| { |
| #ifdef GLX_DIRECT_RENDERING |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); |
| struct glx_screen *psc = pdraw ? pdraw->psc : NULL; |
| int ret; |
| #endif |
| |
| |
| /* 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 GLX_DIRECT_RENDERING |
| if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) { |
| ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder, |
| ust, msc, sbc); |
| return ret; |
| } |
| #endif |
| |
| return False; |
| } |
| |
| |
| static Bool |
| __glXWaitForSbcOML(Display * dpy, GLXDrawable drawable, |
| int64_t target_sbc, int64_t * ust, |
| int64_t * msc, int64_t * sbc) |
| { |
| #ifdef GLX_DIRECT_RENDERING |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); |
| struct glx_screen *psc = pdraw ? pdraw->psc : NULL; |
| int ret; |
| #endif |
| |
| /* 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 GLX_DIRECT_RENDERING |
| if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) { |
| ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc); |
| return ret; |
| } |
| #endif |
| |
| return False; |
| } |
| |
| /*@}*/ |
| |
| |
| /** |
| * 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; |
| } |
| |
| |
| _GLX_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; |
| struct glx_context *gc; |
| GLXContextTag tag; |
| CARD32 *drawable_ptr; |
| INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr; |
| CARD8 opcode; |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); |
| if (pdraw != NULL) { |
| struct glx_screen *psc = pdraw->psc; |
| if (psc->driScreen->copySubBuffer != NULL) { |
| (*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height, True); |
| } |
| |
| 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 != &dummyContext) && (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(); |
| } |
| |
| /*@{*/ |
| static void |
| __glXBindTexImageEXT(Display * dpy, |
| GLXDrawable drawable, int buffer, const int *attrib_list) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc->vtable->bind_tex_image == NULL) |
| return; |
| |
| gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list); |
| } |
| |
| static void |
| __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer) |
| { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc->vtable->release_tex_image == NULL) |
| return; |
| |
| gc->vtable->release_tex_image(dpy, drawable, buffer); |
| } |
| |
| /*@}*/ |
| |
| #endif /* GLX_USE_APPLEGL */ |
| |
| /* |
| ** 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), |
| |
| #ifndef GLX_USE_APPLEGL |
| /*** 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), |
| #endif |
| |
| /*** GLX_SGIX_fbconfig ***/ |
| GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib), |
| GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig), |
| GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX), |
| GLX_FUNCTION(glXCreateContextWithConfigSGIX), |
| GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig), |
| GLX_FUNCTION(glXGetFBConfigFromVisualSGIX), |
| |
| #ifndef GLX_USE_APPLEGL |
| /*** GLX_SGIX_pbuffer ***/ |
| GLX_FUNCTION(glXCreateGLXPbufferSGIX), |
| GLX_FUNCTION(glXDestroyGLXPbufferSGIX), |
| GLX_FUNCTION(glXQueryGLXPbufferSGIX), |
| GLX_FUNCTION(glXSelectEventSGIX), |
| GLX_FUNCTION(glXGetSelectedEventSGIX), |
| |
| /*** 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), |
| #endif |
| |
| /*** GLX_ARB_get_proc_address ***/ |
| GLX_FUNCTION(glXGetProcAddressARB), |
| |
| /*** GLX 1.4 ***/ |
| GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB), |
| |
| #ifndef GLX_USE_APPLEGL |
| /*** 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), |
| #endif |
| |
| #if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_DRM) |
| /*** DRI configuration ***/ |
| GLX_FUNCTION(glXGetScreenDriver), |
| GLX_FUNCTION(glXGetDriverConfig), |
| #endif |
| |
| /*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/ |
| GLX_FUNCTION(glXCreateContextAttribsARB), |
| |
| /*** GLX_MESA_query_renderer ***/ |
| GLX_FUNCTION(glXQueryRendererIntegerMESA), |
| GLX_FUNCTION(glXQueryRendererStringMESA), |
| GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA), |
| GLX_FUNCTION(glXQueryCurrentRendererStringMESA), |
| |
| {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 |
| */ |
| _GLX_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')) { |
| #ifdef GLX_INDIRECT_RENDERING |
| f = (gl_function) __indirect_get_proc_address((const char *) procName); |
| #endif |
| if (!f) |
| f = (gl_function) _glapi_get_proc_address((const char *) procName); |
| if (!f) { |
| struct glx_context *gc = __glXGetCurrentContext(); |
| |
| if (gc != NULL && gc->vtable->get_proc_address != NULL) |
| f = gc->vtable->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 |
| */ |
| _GLX_PUBLIC |
| GLX_ALIAS(__GLXextFuncPtr, glXGetProcAddress, |
| (const GLubyte * procName), |
| (procName), glXGetProcAddressARB) |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| /** |
| * 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 */ |
| |
| #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) |
| |
| PUBLIC int |
| MesaGLInteropGLXQueryDeviceInfo(Display *dpy, GLXContext context, |
| struct mesa_glinterop_device_info *out) |
| { |
| struct glx_context *gc = (struct glx_context*)context; |
| int ret; |
| |
| __glXLock(); |
| |
| if (!gc || gc->xid == None || !gc->isDirect) { |
| __glXUnlock(); |
| return MESA_GLINTEROP_INVALID_CONTEXT; |
| } |
| |
| if (!gc->vtable->interop_query_device_info) { |
| __glXUnlock(); |
| return MESA_GLINTEROP_UNSUPPORTED; |
| } |
| |
| ret = gc->vtable->interop_query_device_info(gc, out); |
| __glXUnlock(); |
| return ret; |
| } |
| |
| PUBLIC int |
| MesaGLInteropGLXExportObject(Display *dpy, GLXContext context, |
| struct mesa_glinterop_export_in *in, |
| struct mesa_glinterop_export_out *out) |
| { |
| struct glx_context *gc = (struct glx_context*)context; |
| int ret; |
| |
| __glXLock(); |
| |
| if (!gc || gc->xid == None || !gc->isDirect) { |
| __glXUnlock(); |
| return MESA_GLINTEROP_INVALID_CONTEXT; |
| } |
| |
| if (!gc->vtable->interop_export_object) { |
| __glXUnlock(); |
| return MESA_GLINTEROP_UNSUPPORTED; |
| } |
| |
| ret = gc->vtable->interop_export_object(gc, in, out); |
| __glXUnlock(); |
| return ret; |
| } |
| |
| #endif /* defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) */ |