diff options
Diffstat (limited to 'src/glx/x11/glxext.c')
| -rw-r--r-- | src/glx/x11/glxext.c | 1198 |
1 files changed, 1043 insertions, 155 deletions
diff --git a/src/glx/x11/glxext.c b/src/glx/x11/glxext.c index 4d814744cd..6403cbd56d 100644 --- a/src/glx/x11/glxext.c +++ b/src/glx/x11/glxext.c @@ -44,25 +44,57 @@ */ #include "glxclient.h" +#include <stdio.h> #include <X11/extensions/Xext.h> #include <X11/extensions/extutil.h> +#include <X11/extensions/Xfixes.h> +#include <X11/extensions/Xdamage.h> +#include <assert.h> +#include "indirect_init.h" #include "glapi.h" #include "glxextensions.h" #include "glcontextmodes.h" #include "glheader.h" +#ifdef GLX_DIRECT_RENDERING +#include <inttypes.h> +#include <sys/mman.h> +#include "xf86dri.h" +#include "sarea.h" +#include "dri_glx.h" +#endif + #ifdef USE_XCB #include <X11/Xlib-xcb.h> #include <xcb/xcb.h> #include <xcb/glx.h> #endif +#include <assert.h> #ifdef DEBUG void __glXDumpDrawBuffer(__GLXcontext *ctx); #endif #ifdef USE_SPARC_ASM +/* + * This is where our dispatch table's bounds are. + * And the static mesa_init is taken directly from + * Mesa's 'sparc.c' initializer. + * + * We need something like this here, because this version + * of openGL/glx never initializes a Mesa context, and so + * the address of the dispatch table pointer never gets stuffed + * into the dispatch jump table otherwise. + * + * It matters only on SPARC, and only if you are using assembler + * code instead of C-code indirect dispatch. + * + * -- FEM, 04.xii.03 + */ +extern unsigned int _mesa_sparc_glapi_begin; +extern unsigned int _mesa_sparc_glapi_end; +extern void __glapi_sparc_icache_flush(unsigned int *); static void _glx_mesa_init_sparc_glapi_relocs(void); static int _mesa_sparc_needs_init = 1; #define INIT_MESA_SPARC { \ @@ -75,11 +107,173 @@ static int _mesa_sparc_needs_init = 1; #define INIT_MESA_SPARC #endif +#ifdef GLX_DIRECT_RENDERING +static __DRIscreen *__glXFindDRIScreen(__DRInativeDisplay *dpy, int scrn); +#endif /* GLX_DIRECT_RENDERING */ + +static Bool MakeContextCurrent(Display *dpy, GLXDrawable draw, + GLXDrawable read, GLXContext gc); + +/* +** We setup some dummy structures here so that the API can be used +** even if no context is current. +*/ + +static GLubyte dummyBuffer[__GLX_BUFFER_LIMIT_SIZE]; + +/* +** Dummy context used by small commands when there is no current context. +** All the +** gl and glx entry points are designed to operate as nop's when using +** the dummy context structure. +*/ +static __GLXcontext dummyContext = { + &dummyBuffer[0], + &dummyBuffer[0], + &dummyBuffer[0], + &dummyBuffer[__GLX_BUFFER_LIMIT_SIZE], + sizeof(dummyBuffer), +}; + + +/* +** All indirect rendering contexts will share the same indirect dispatch table. +*/ +static __GLapi *IndirectAPI = NULL; + + +/* + * Current context management and locking + */ + +#if defined( USE_XTHREADS ) + +/* thread safe */ +static GLboolean TSDinitialized = GL_FALSE; +static xthread_key_t ContextTSD; + +__GLXcontext *__glXGetCurrentContext(void) +{ + if (!TSDinitialized) { + xthread_key_create(&ContextTSD, NULL); + TSDinitialized = GL_TRUE; + return &dummyContext; + } + else { + void *p; + xthread_get_specific(ContextTSD, &p); + if (!p) + return &dummyContext; + else + return (__GLXcontext *) p; + } +} + +void __glXSetCurrentContext(__GLXcontext *c) +{ + if (!TSDinitialized) { + xthread_key_create(&ContextTSD, NULL); + TSDinitialized = GL_TRUE; + } + xthread_set_specific(ContextTSD, c); +} + + +/* Used by the __glXLock() and __glXUnlock() macros */ +xmutex_rec __glXmutex; + +#elif defined( PTHREADS ) + +pthread_mutex_t __glXmutex = PTHREAD_MUTEX_INITIALIZER; + +# if defined( GLX_USE_TLS ) + +/** + * Per-thread GLX context pointer. + * + * \c __glXSetCurrentContext is written is such a way that this pointer can + * \b never be \c NULL. This is important! Because of this + * \c __glXGetCurrentContext can be implemented as trivial macro. + */ +__thread void * __glX_tls_Context __attribute__((tls_model("initial-exec"))) + = &dummyContext; + +void __glXSetCurrentContext( __GLXcontext * c ) +{ + __glX_tls_Context = (c != NULL) ? c : &dummyContext; +} + +# else + +static pthread_once_t once_control = PTHREAD_ONCE_INIT; + +/** + * Per-thread data key. + * + * Once \c init_thread_data has been called, the per-thread data key will + * take a value of \c NULL. As each new thread is created the default + * value, in that thread, will be \c NULL. + */ +static pthread_key_t ContextTSD; + +/** + * Initialize the per-thread data key. + * + * This function is called \b exactly once per-process (not per-thread!) to + * initialize the per-thread data key. This is ideally done using the + * \c pthread_once mechanism. + */ +static void init_thread_data( void ) +{ + if ( pthread_key_create( & ContextTSD, NULL ) != 0 ) { + perror( "pthread_key_create" ); + exit( -1 ); + } +} + +void __glXSetCurrentContext( __GLXcontext * c ) +{ + pthread_once( & once_control, init_thread_data ); + pthread_setspecific( ContextTSD, c ); +} + +__GLXcontext * __glXGetCurrentContext( void ) +{ + void * v; + + pthread_once( & once_control, init_thread_data ); + + v = pthread_getspecific( ContextTSD ); + return (v == NULL) ? & dummyContext : (__GLXcontext *) v; +} + +# endif /* defined( GLX_USE_TLS ) */ + +#elif defined( THREADS ) + +#error Unknown threading method specified. + +#else + +/* not thread safe */ +__GLXcontext *__glXcurrentContext = &dummyContext; + +#endif + + /* ** You can set this cell to 1 to force the gl drawing stuff to be ** one command per packet */ -_X_HIDDEN int __glXDebug = 0; +int __glXDebug = 0; + +/* +** forward prototype declarations +*/ +int __glXCloseDisplay(Display *dpy, XExtCodes *codes); + + +/************************************************************************/ /* Extension required boiler plate */ @@ -102,13 +296,16 @@ static /* const */ char *error_list[] = { "GLXBadWindow", }; -static int __glXCloseDisplay(Display *dpy, XExtCodes *codes) +int __glXCloseDisplay(Display *dpy, XExtCodes *codes) { GLXContext gc; gc = __glXGetCurrentContext(); if (dpy == gc->currentDpy) { - __glXSetCurrentContextNull(); + __glXSetCurrentContext(&dummyContext); +#ifdef GLX_DIRECT_RENDERING + _glapi_set_dispatch(NULL); /* no-op functions */ +#endif __glXFreeContext(gc); } @@ -163,10 +360,11 @@ static void FreeScreenConfigs(__GLXdisplayPrivate *priv) Xfree((char*) psc->serverGLXexts); #ifdef GLX_DIRECT_RENDERING - if (psc->driScreen) { - psc->driScreen->destroyScreen(psc); - __glxHashDestroy(psc->drawHash); - } + /* Free the direct rendering per screen data */ + if (psc->driScreen.private) + (*psc->driScreen.destroyScreen)(priv->dpy, i, + psc->driScreen.private); + psc->driScreen.private = NULL; #endif } XFree((char*) priv->screenConfigs); @@ -193,12 +391,14 @@ static int __glXFreeDisplayPrivate(XExtData *extension) #ifdef GLX_DIRECT_RENDERING /* Free the direct rendering per display data */ - if (priv->driDisplay) - (*priv->driDisplay->destroyDisplay)(priv->driDisplay); - priv->driDisplay = NULL; - if (priv->dri2Display) - (*priv->dri2Display->destroyDisplay)(priv->dri2Display); - priv->dri2Display = NULL; + if (priv->driDisplay.private) + (*priv->driDisplay.destroyDisplay)(priv->dpy, + priv->driDisplay.private); + priv->driDisplay.private = NULL; + if (priv->driDisplay.createNewScreen) { + Xfree(priv->driDisplay.createNewScreen); /* free array of ptrs */ + priv->driDisplay.createNewScreen = NULL; + } #endif Xfree((char*) priv); @@ -240,7 +440,7 @@ static Bool QueryVersion(Display *dpy, int opcode, int *major, int *minor) } -_X_HIDDEN void +void __glXInitializeVisualConfigFromTags( __GLcontextModes *config, int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags ) @@ -434,128 +634,371 @@ __glXInitializeVisualConfigFromTags( __GLcontextModes *config, int count, config->haveStencilBuffer = (config->stencilBits > 0); } -static __GLcontextModes * -createConfigsFromProperties(Display *dpy, int nvisuals, int nprops, - int screen, GLboolean tagged_only) + +#ifdef GLX_DIRECT_RENDERING +static unsigned +filter_modes( __GLcontextModes ** server_modes, + const __GLcontextModes * driver_modes ) { - INT32 buf[__GLX_TOTAL_CONFIG], *props; - unsigned prop_size; - __GLcontextModes *modes, *m; - int i; + __GLcontextModes * m; + __GLcontextModes ** prev_next; + const __GLcontextModes * check; + unsigned modes_count = 0; - if (nprops == 0) - return NULL; + if ( driver_modes == NULL ) { + fprintf(stderr, "libGL warning: 3D driver returned no fbconfigs.\n"); + return 0; + } - /* FIXME: Is the __GLX_MIN_CONFIG_PROPS test correct for FBconfigs? */ + /* For each mode in server_modes, check to see if a matching mode exists + * in driver_modes. If not, then the mode is not available. + */ - /* Check number of properties */ - if (nprops < __GLX_MIN_CONFIG_PROPS || nprops > __GLX_MAX_CONFIG_PROPS) - return NULL; + prev_next = server_modes; + for ( m = *prev_next ; m != NULL ; m = *prev_next ) { + GLboolean do_delete = GL_TRUE; - /* Allocate memory for our config structure */ - modes = _gl_context_modes_create(nvisuals, sizeof(__GLcontextModes)); - if (!modes) - return NULL; + for ( check = driver_modes ; check != NULL ; check = check->next ) { + if ( _gl_context_modes_are_same( m, check ) ) { + do_delete = GL_FALSE; + break; + } + } - prop_size = nprops * __GLX_SIZE_INT32; - if (prop_size <= sizeof(buf)) - props = buf; - else - props = Xmalloc(prop_size); + /* The 3D has to support all the modes that match the GLX visuals + * sent from the X server. + */ + if ( do_delete && (m->visualID != 0) ) { + do_delete = GL_FALSE; - /* Read each config structure and convert it into our format */ - m = modes; - for (i = 0; i < nvisuals; i++) { - _XRead(dpy, (char *)props, prop_size); - /* Older X servers don't send this so we default it here. */ - m->drawableType = GLX_WINDOW_BIT; - __glXInitializeVisualConfigFromTags(m, nprops, props, - tagged_only, GL_TRUE); - m->screen = screen; - m = m->next; - } + if (getenv("LIBGL_DEBUG")) { + fprintf(stderr, "libGL warning: 3D driver claims to not support " + "visual 0x%02x\n", m->visualID); + } + } - if (props != buf) - Xfree(props); + if ( do_delete ) { + *prev_next = m->next; - return modes; + m->next = NULL; + _gl_context_modes_destroy( m ); + } + else { + modes_count++; + prev_next = & m->next; + } + } + + return modes_count; } -static GLboolean -getVisualConfigs(Display *dpy, __GLXdisplayPrivate *priv, int screen) + +/** + * Implement \c __DRIinterfaceMethods::getProcAddress. + */ +static __DRIfuncPtr get_proc_address( const char * proc_name ) { - xGLXGetVisualConfigsReq *req; - __GLXscreenConfigs *psc; - xGLXGetVisualConfigsReply reply; + if (strcmp( proc_name, "glxEnableExtension" ) == 0) { + return (__DRIfuncPtr) __glXScrEnableExtension; + } - LockDisplay(dpy); + return NULL; +} + +#ifdef XDAMAGE_1_1_INTERFACE +static GLboolean has_damage_post(__DRInativeDisplay *dpy) +{ + static GLboolean inited = GL_FALSE; + static GLboolean has_damage; + + if (!inited) { + int major, minor; - psc = priv->screenConfigs + screen; - psc->visuals = NULL; - GetReq(GLXGetVisualConfigs, req); - req->reqType = priv->majorOpcode; - req->glxCode = X_GLXGetVisualConfigs; - req->screen = screen; + if (XDamageQueryVersion(dpy, &major, &minor) && + major == 1 && minor >= 1) + { + has_damage = GL_TRUE; + } else { + has_damage = GL_FALSE; + } + inited = GL_TRUE; + } - if (!_XReply(dpy, (xReply*) &reply, 0, False)) - goto out; + return has_damage; +} +#endif /* XDAMAGE_1_1_INTERFACE */ - psc->visuals = createConfigsFromProperties(dpy, - reply.numVisuals, - reply.numProps, - screen, GL_FALSE); +static void __glXReportDamage(__DRInativeDisplay *dpy, int screen, + __DRIid drawable, + int x, int y, + drm_clip_rect_t *rects, int num_rects, + GLboolean front_buffer) +{ +#ifdef XDAMAGE_1_1_INTERFACE + XRectangle *xrects; + XserverRegion region; + int i; + int x_off, y_off; + + if (!has_damage_post(dpy)) + return; + + if (front_buffer) { + x_off = x; + y_off = y; + drawable = RootWindow(dpy, screen); + } else{ + x_off = 0; + y_off = 0; + } - out: - UnlockDisplay(dpy); - return psc->visuals != NULL; + xrects = malloc(sizeof(XRectangle) * num_rects); + if (xrects == NULL) + return; + + for (i = 0; i < num_rects; i++) { + xrects[i].x = rects[i].x1 + x_off; + xrects[i].y = rects[i].y1 + y_off; + xrects[i].width = rects[i].x2 - rects[i].x1; + xrects[i].height = rects[i].y2 - rects[i].y1; + } + region = XFixesCreateRegion(dpy, xrects, num_rects); + free(xrects); + XDamageAdd(dpy, drawable, region); + XFixesDestroyRegion(dpy, region); +#endif } -static GLboolean -getFBConfigs(Display *dpy, __GLXdisplayPrivate *priv, int screen) +/** + * Table of functions exported by the loader to the driver. + */ +static const __DRIinterfaceMethods interface_methods = { + get_proc_address, + + _gl_context_modes_create, + _gl_context_modes_destroy, + + __glXFindDRIScreen, + __glXWindowExists, + + XF86DRICreateContextWithConfig, + XF86DRIDestroyContext, + + XF86DRICreateDrawable, + XF86DRIDestroyDrawable, + XF86DRIGetDrawableInfo, + + __glXGetUST, + __glXGetMscRateOML, + + __glXReportDamage, +}; + + + +/** + * Perform the required libGL-side initialization and call the client-side + * driver's \c __driCreateNewScreen function. + * + * \param dpy Display pointer. + * \param scrn Screen number on the display. + * \param psc DRI screen information. + * \param driDpy DRI display information. + * \param createNewScreen Pointer to the client-side driver's + * \c __driCreateNewScreen function. + * \returns A pointer to the \c __DRIscreenPrivate structure returned by + * the client-side driver on success, or \c NULL on failure. + * + * \todo This function needs to be modified to remove context-modes from the + * list stored in the \c __GLXscreenConfigsRec to match the list + * returned by the client-side driver. + */ +static void * +CallCreateNewScreen(Display *dpy, int scrn, __DRIscreen *psc, + __DRIdisplay * driDpy, + PFNCREATENEWSCREENFUNC createNewScreen) { - xGLXGetFBConfigsReq *fb_req; - xGLXGetFBConfigsSGIXReq *sgi_req; - xGLXVendorPrivateWithReplyReq *vpreq; - xGLXGetFBConfigsReply reply; - __GLXscreenConfigs *psc; + __DRIscreenPrivate *psp = NULL; +#ifndef GLX_USE_APPLEGL + drm_handle_t hSAREA; + drmAddress pSAREA = MAP_FAILED; + char *BusID; + __DRIversion ddx_version; + __DRIversion dri_version; + __DRIversion drm_version; + __DRIframebuffer framebuffer; + int fd = -1; + int status; + const char * err_msg; + const char * err_extra; + int api_ver = __glXGetInternalVersion(); + + + dri_version.major = driDpy->private->driMajor; + dri_version.minor = driDpy->private->driMinor; + dri_version.patch = driDpy->private->driPatch; + + + err_msg = "XF86DRIOpenConnection"; + err_extra = NULL; + + framebuffer.base = MAP_FAILED; + framebuffer.dev_priv = NULL; + + if (XF86DRIOpenConnection(dpy, scrn, &hSAREA, &BusID)) { + int newlyopened; + fd = drmOpenOnce(NULL,BusID, &newlyopened); + Xfree(BusID); /* No longer needed */ + + err_msg = "open DRM"; + err_extra = strerror( -fd ); + + if (fd >= 0) { + drm_magic_t magic; + + err_msg = "drmGetMagic"; + err_extra = NULL; + + if (!drmGetMagic(fd, &magic)) { + drmVersionPtr version = drmGetVersion(fd); + if (version) { + drm_version.major = version->version_major; + drm_version.minor = version->version_minor; + drm_version.patch = version->version_patchlevel; + drmFreeVersion(version); + } + else { + drm_version.major = -1; + drm_version.minor = -1; + drm_version.patch = -1; + } + + err_msg = "XF86DRIAuthConnection"; + if (!newlyopened || XF86DRIAuthConnection(dpy, scrn, magic)) { + char *driverName; + + /* + * Get device name (like "tdfx") and the ddx version + * numbers. We'll check the version in each DRI driver's + * "createNewScreen" function. + */ + err_msg = "XF86DRIGetClientDriverName"; + if (XF86DRIGetClientDriverName(dpy, scrn, + &ddx_version.major, + &ddx_version.minor, + &ddx_version.patch, + &driverName)) { + drm_handle_t hFB; + int junk; + + /* No longer needed. */ + Xfree( driverName ); + + + /* + * Get device-specific info. pDevPriv will point to a struct + * (such as DRIRADEONRec in xfree86/driver/ati/radeon_dri.h) + * that has information about the screen size, depth, pitch, + * ancilliary buffers, DRM mmap handles, etc. + */ + err_msg = "XF86DRIGetDeviceInfo"; + if (XF86DRIGetDeviceInfo(dpy, scrn, + &hFB, + &junk, + &framebuffer.size, + &framebuffer.stride, + &framebuffer.dev_priv_size, + &framebuffer.dev_priv)) { + framebuffer.width = DisplayWidth(dpy, scrn); + framebuffer.height = DisplayHeight(dpy, scrn); + + /* + * Map the framebuffer region. + */ + status = drmMap(fd, hFB, framebuffer.size, + (drmAddressPtr)&framebuffer.base); + + err_msg = "drmMap of framebuffer"; + err_extra = strerror( -status ); + + if ( status == 0 ) { + /* + * Map the SAREA region. Further mmap regions + * may be setup in each DRI driver's + * "createNewScreen" function. + */ + status = drmMap(fd, hSAREA, SAREA_MAX, + &pSAREA); + + err_msg = "drmMap of sarea"; + err_extra = strerror( -status ); + + if ( status == 0 ) { + __GLcontextModes * driver_modes = NULL; + __GLXscreenConfigs *configs = psc->screenConfigs; + + err_msg = "InitDriver"; + err_extra = NULL; + psp = (*createNewScreen)(dpy, scrn, + psc, + configs->configs, + & ddx_version, + & dri_version, + & drm_version, + & framebuffer, + pSAREA, + fd, + api_ver, + & interface_methods, + & driver_modes ); + + filter_modes( & configs->configs, + driver_modes ); + _gl_context_modes_destroy( driver_modes ); + } + } + } + } + } + } + } + } - psc = priv->screenConfigs + screen; - psc->serverGLXexts = __glXGetStringFromServer(dpy, priv->majorOpcode, - X_GLXQueryServerString, - screen, GLX_EXTENSIONS); + if ( psp == NULL ) { + if ( pSAREA != MAP_FAILED ) { + (void)drmUnmap(pSAREA, SAREA_MAX); + } - LockDisplay(dpy); + if ( framebuffer.base != MAP_FAILED ) { + (void)drmUnmap((drmAddress)framebuffer.base, framebuffer.size); + } - psc->configs = NULL; - if (atof(priv->serverGLXversion) >= 1.3) { - GetReq(GLXGetFBConfigs, fb_req); - fb_req->reqType = priv->majorOpcode; - fb_req->glxCode = X_GLXGetFBConfigs; - fb_req->screen = screen; - } else if (strstr(psc->serverGLXexts, "GLX_SGIX_fbconfig") != NULL) { - GetReqExtra(GLXVendorPrivateWithReply, - sz_xGLXGetFBConfigsSGIXReq + - sz_xGLXVendorPrivateWithReplyReq, vpreq); - sgi_req = (xGLXGetFBConfigsSGIXReq *) vpreq; - sgi_req->reqType = priv->majorOpcode; - sgi_req->glxCode = X_GLXVendorPrivateWithReply; - sgi_req->vendorCode = X_GLXvop_GetFBConfigsSGIX; - sgi_req->screen = screen; - } else - goto out; + if ( framebuffer.dev_priv != NULL ) { + Xfree(framebuffer.dev_priv); + } - if (!_XReply(dpy, (xReply*) &reply, 0, False)) - goto out; + if ( fd >= 0 ) { + (void)drmCloseOnce(fd); + } - psc->configs = createConfigsFromProperties(dpy, - reply.numFBConfigs, - reply.numAttribs * 2, - screen, GL_TRUE); + (void)XF86DRICloseConnection(dpy, scrn); - out: - UnlockDisplay(dpy); - return psc->configs != NULL; + if ( err_extra != NULL ) { + fprintf(stderr, "libGL error: %s failed (%s)\n", err_msg, + err_extra); + } + else { + fprintf(stderr, "libGL error: %s failed\n", err_msg ); + } + + fprintf(stderr, "libGL error: reverting to (slow) indirect rendering\n"); + } +#endif /* !GLX_USE_APPLEGL */ + + return psp; } +#endif /* GLX_DIRECT_RENDERING */ + /* ** Allocate the memory for the per screen configs for each screen. @@ -563,8 +1006,17 @@ getFBConfigs(Display *dpy, __GLXdisplayPrivate *priv, int screen) */ static Bool AllocAndFetchScreenConfigs(Display *dpy, __GLXdisplayPrivate *priv) { + xGLXGetVisualConfigsReq *req; + xGLXGetFBConfigsReq *fb_req; + xGLXVendorPrivateWithReplyReq *vpreq; + xGLXGetFBConfigsSGIXReq *sgi_req; + xGLXGetVisualConfigsReply reply; __GLXscreenConfigs *psc; - GLint i, screens; + __GLcontextModes *config; + GLint i, j, nprops, screens; + INT32 buf[__GLX_TOTAL_CONFIG], *props; + unsigned supported_request = 0; + unsigned prop_size; /* ** First allocate memory for the array of per screen configs. @@ -578,30 +1030,159 @@ static Bool AllocAndFetchScreenConfigs(Display *dpy, __GLXdisplayPrivate *priv) priv->screenConfigs = psc; priv->serverGLXversion = __glXGetStringFromServer(dpy, priv->majorOpcode, - X_GLXQueryServerString, - 0, GLX_VERSION); + X_GLXQueryServerString, + 0, GLX_VERSION); if ( priv->serverGLXversion == NULL ) { FreeScreenConfigs(priv); return GL_FALSE; } + if ( atof( priv->serverGLXversion ) >= 1.3 ) { + supported_request = 1; + } + + /* + ** Now fetch each screens configs structures. If a screen supports + ** GL (by returning a numVisuals > 0) then allocate memory for our + ** config structure and then fill it in. + */ for (i = 0; i < screens; i++, psc++) { - getVisualConfigs(dpy, priv, i); - getFBConfigs(dpy, priv, i); + if ( supported_request != 1 ) { + psc->serverGLXexts = __glXGetStringFromServer(dpy, priv->majorOpcode, + X_GLXQueryServerString, + i, GLX_EXTENSIONS); + if ( strstr( psc->serverGLXexts, "GLX_SGIX_fbconfig" ) != NULL ) { + supported_request = 2; + } + else { + supported_request = 3; + } + } - psc->scr = i; - psc->dpy = dpy; -#ifdef GLX_DIRECT_RENDERING - psc->drawHash = __glxHashCreate(); - if (psc->drawHash == NULL) + + LockDisplay(dpy); + switch( supported_request ) { + case 1: + GetReq(GLXGetFBConfigs,fb_req); + fb_req->reqType = priv->majorOpcode; + fb_req->glxCode = X_GLXGetFBConfigs; + fb_req->screen = i; + break; + + case 2: + GetReqExtra(GLXVendorPrivateWithReply, + sz_xGLXGetFBConfigsSGIXReq-sz_xGLXVendorPrivateWithReplyReq,vpreq); + sgi_req = (xGLXGetFBConfigsSGIXReq *) vpreq; + sgi_req->reqType = priv->majorOpcode; + sgi_req->glxCode = X_GLXVendorPrivateWithReply; + sgi_req->vendorCode = X_GLXvop_GetFBConfigsSGIX; + sgi_req->screen = i; + break; + + case 3: + GetReq(GLXGetVisualConfigs,req); + req->reqType = priv->majorOpcode; + req->glxCode = X_GLXGetVisualConfigs; + req->screen = i; + break; + } + + if (!_XReply(dpy, (xReply*) &reply, 0, False)) { + /* Something is busted. Punt. */ + UnlockDisplay(dpy); + SyncHandle(); + FreeScreenConfigs(priv); + return GL_FALSE; + } + + if (!reply.numVisuals) { + /* This screen does not support GL rendering */ + UnlockDisplay(dpy); continue; - if (priv->dri2Display) - psc->driScreen = (*priv->dri2Display->createScreen)(psc, i, priv); - if (psc->driScreen == NULL && priv->driDisplay) - psc->driScreen = (*priv->driDisplay->createScreen)(psc, i, priv); - if (psc->driScreen == NULL) { - __glxHashDestroy(psc->drawHash); - psc->drawHash = NULL; + } + + /* FIXME: Is the __GLX_MIN_CONFIG_PROPS test correct for + * FIXME: FBconfigs? + */ + /* Check number of properties */ + nprops = reply.numProps; + if ((nprops < __GLX_MIN_CONFIG_PROPS) || + (nprops > __GLX_MAX_CONFIG_PROPS)) { + /* Huh? Not in protocol defined limits. Punt */ + UnlockDisplay(dpy); + SyncHandle(); + FreeScreenConfigs(priv); + return GL_FALSE; + } + + /* Allocate memory for our config structure */ + psc->configs = _gl_context_modes_create(reply.numVisuals, + sizeof(__GLcontextModes)); + if (!psc->configs) { + UnlockDisplay(dpy); + SyncHandle(); + FreeScreenConfigs(priv); + return GL_FALSE; + } + + /* Allocate memory for the properties, if needed */ + if ( supported_request != 3 ) { + nprops *= 2; + } + + prop_size = nprops * __GLX_SIZE_INT32; + + if (prop_size <= sizeof(buf)) { + props = buf; + } else { + props = (INT32 *) Xmalloc(prop_size); + } + + /* Read each config structure and convert it into our format */ + config = psc->configs; + for (j = 0; j < reply.numVisuals; j++) { + assert( config != NULL ); + _XRead(dpy, (char *)props, prop_size); + + if ( supported_request != 3 ) { + config->rgbMode = GL_TRUE; + config->drawableType = GLX_WINDOW_BIT; + } + else { + config->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT; + } + + __glXInitializeVisualConfigFromTags( config, nprops, props, + (supported_request != 3), + GL_TRUE ); + if ( config->fbconfigID == GLX_DONT_CARE ) { + config->fbconfigID = config->visualID; + } + config->screen = i; + config = config->next; + } + if (props != buf) { + Xfree((char *)props); + } + UnlockDisplay(dpy); + +#ifdef GLX_DIRECT_RENDERING + /* Initialize per screen dynamic client GLX extensions */ + psc->ext_list_first_time = GL_TRUE; + /* Initialize the direct rendering per screen data and functions */ + if (priv->driDisplay.private != NULL) { + /* FIXME: Should it be some sort of an error if createNewScreen[i] + * FIXME: is NULL? + */ + if (priv->driDisplay.createNewScreen && + priv->driDisplay.createNewScreen[i]) { + + psc->driScreen.screenConfigs = (void *)psc; + psc->driScreen.private = + CallCreateNewScreen(dpy, i, & psc->driScreen, + & priv->driDisplay, + priv->driDisplay.createNewScreen[i] ); + } } #endif } @@ -612,7 +1193,7 @@ static Bool AllocAndFetchScreenConfigs(Display *dpy, __GLXdisplayPrivate *priv) /* ** Initialize the client side extension code. */ -_X_HIDDEN __GLXdisplayPrivate *__glXInitialize(Display* dpy) +__GLXdisplayPrivate *__glXInitialize(Display* dpy) { XExtDisplayInfo *info = __glXFindDisplay(dpy); XExtData **privList, *private, *found; @@ -692,8 +1273,8 @@ _X_HIDDEN __GLXdisplayPrivate *__glXInitialize(Display* dpy) ** (e.g., those called in AllocAndFetchScreenConfigs). */ if (getenv("LIBGL_ALWAYS_INDIRECT") == NULL) { - dpyPriv->dri2Display = dri2CreateDisplay(dpy); - dpyPriv->driDisplay = driCreateDisplay(dpy); + dpyPriv->driDisplay.private = + driCreateDisplay(dpy, &dpyPriv->driDisplay); } #endif @@ -727,7 +1308,7 @@ _X_HIDDEN __GLXdisplayPrivate *__glXInitialize(Display* dpy) ** Setup for sending a GLX command on dpy. Make sure the extension is ** initialized. Try to avoid calling __glXInitialize as its kinda slow. */ -_X_HIDDEN CARD8 __glXSetupForCommand(Display *dpy) +CARD8 __glXSetupForCommand(Display *dpy) { GLXContext gc; __GLXdisplayPrivate *priv; @@ -768,7 +1349,7 @@ _X_HIDDEN CARD8 __glXSetupForCommand(Display *dpy) * Modify this function to use \c ctx->pc instead of the explicit * \c pc parameter. */ -_X_HIDDEN GLubyte *__glXFlushRenderBuffer(__GLXcontext *ctx, GLubyte *pc) +GLubyte *__glXFlushRenderBuffer(__GLXcontext *ctx, GLubyte *pc) { Display * const dpy = ctx->currentDpy; #ifdef USE_XCB @@ -780,8 +1361,7 @@ _X_HIDDEN GLubyte *__glXFlushRenderBuffer(__GLXcontext *ctx, GLubyte *pc) if ( (dpy != NULL) && (size > 0) ) { #ifdef USE_XCB - xcb_glx_render(c, ctx->currentContextTag, size, - (const uint8_t *)ctx->buf); + xcb_glx_render(c, ctx->currentContextTag, size, (char *)ctx->buf); #else /* Send the entire buffer as an X request */ LockDisplay(dpy); @@ -818,9 +1398,9 @@ _X_HIDDEN GLubyte *__glXFlushRenderBuffer(__GLXcontext *ctx, GLubyte *pc) * \param data Command data. * \param dataLen Size, in bytes, of the command data. */ -_X_HIDDEN void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber, - GLint totalRequests, - const GLvoid * data, GLint dataLen) +void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber, + GLint totalRequests, + const GLvoid * data, GLint dataLen) { Display *dpy = gc->currentDpy; #ifdef USE_XCB @@ -866,9 +1446,9 @@ _X_HIDDEN void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber, * \param data Command data. * \param dataLen Size, in bytes, of the command data. */ -_X_HIDDEN void __glXSendLargeCommand(__GLXcontext *ctx, - const GLvoid *header, GLint headerLen, - const GLvoid *data, GLint dataLen) +void __glXSendLargeCommand(__GLXcontext *ctx, + const GLvoid *header, GLint headerLen, + const GLvoid *data, GLint dataLen) { GLint maxSize; GLint totalRequests, requestNumber; @@ -904,8 +1484,330 @@ _X_HIDDEN void __glXSendLargeCommand(__GLXcontext *ctx, /************************************************************************/ +PUBLIC GLXContext glXGetCurrentContext(void) +{ + GLXContext cx = __glXGetCurrentContext(); + + if (cx == &dummyContext) { + return NULL; + } else { + return cx; + } +} + +PUBLIC GLXDrawable glXGetCurrentDrawable(void) +{ + GLXContext gc = __glXGetCurrentContext(); + return gc->currentDrawable; +} + + +/************************************************************************/ + +#ifdef GLX_DIRECT_RENDERING +/* Return the DRI per screen structure */ +__DRIscreen *__glXFindDRIScreen(__DRInativeDisplay *dpy, int scrn) +{ + __DRIscreen *pDRIScreen = NULL; + XExtDisplayInfo *info = __glXFindDisplay(dpy); + XExtData **privList, *found; + __GLXdisplayPrivate *dpyPriv; + XEDataObject dataObj; + + __glXLock(); + dataObj.display = dpy; + privList = XEHeadOfExtensionList(dataObj); + found = XFindOnExtensionList(privList, info->codes->extension); + __glXUnlock(); + + if (found) { + dpyPriv = (__GLXdisplayPrivate *)found->private_data; + pDRIScreen = &dpyPriv->screenConfigs[scrn].driScreen; + } + + return pDRIScreen; +} +#endif + +/************************************************************************/ + +static Bool SendMakeCurrentRequest( Display *dpy, CARD8 opcode, + GLXContextID gc, GLXContextTag old_gc, GLXDrawable draw, GLXDrawable read, + xGLXMakeCurrentReply * reply ); + +/** + * Sends a GLX protocol message to the specified display to make the context + * and the drawables current. + * + * \param dpy Display to send the message to. + * \param opcode Major opcode value for the display. + * \param gc_id Context tag for the context to be made current. + * \param draw Drawable ID for the "draw" drawable. + * \param read Drawable ID for the "read" drawable. + * \param reply Space to store the X-server's reply. + * + * \warning + * This function assumes that \c dpy is locked with \c LockDisplay on entry. + */ +static Bool SendMakeCurrentRequest(Display *dpy, CARD8 opcode, + GLXContextID gc_id, GLXContextTag gc_tag, + GLXDrawable draw, GLXDrawable read, + xGLXMakeCurrentReply *reply) +{ + Bool ret; + + + LockDisplay(dpy); + + if (draw == read) { + xGLXMakeCurrentReq *req; + + GetReq(GLXMakeCurrent,req); + req->reqType = opcode; + req->glxCode = X_GLXMakeCurrent; + req->drawable = draw; + req->context = gc_id; + req->oldContextTag = gc_tag; + } + else { + __GLXdisplayPrivate *priv = __glXInitialize(dpy); + + /* If the server can support the GLX 1.3 version, we should + * perfer that. Not only that, some servers support GLX 1.3 but + * not the SGI extension. + */ + + if ((priv->majorVersion > 1) || (priv->minorVersion >= 3)) { + xGLXMakeContextCurrentReq *req; + + GetReq(GLXMakeContextCurrent,req); + req->reqType = opcode; + req->glxCode = X_GLXMakeContextCurrent; + req->drawable = draw; + req->readdrawable = read; + req->context = gc_id; + req->oldContextTag = gc_tag; + } + else { + xGLXVendorPrivateWithReplyReq *vpreq; + xGLXMakeCurrentReadSGIReq *req; + + GetReqExtra(GLXVendorPrivateWithReply, + sz_xGLXMakeCurrentReadSGIReq-sz_xGLXVendorPrivateWithReplyReq,vpreq); + req = (xGLXMakeCurrentReadSGIReq *)vpreq; + req->reqType = opcode; + req->glxCode = X_GLXVendorPrivateWithReply; + req->vendorCode = X_GLXvop_MakeCurrentReadSGI; + req->drawable = draw; + req->readable = read; + req->context = gc_id; + req->oldContextTag = gc_tag; + } + } + + ret = _XReply(dpy, (xReply*) reply, 0, False); + + UnlockDisplay(dpy); + SyncHandle(); + + return ret; +} + + +#ifdef GLX_DIRECT_RENDERING +static Bool BindContextWrapper( Display *dpy, GLXContext gc, + GLXDrawable draw, GLXDrawable read ) +{ + return (*gc->driContext.bindContext)(dpy, gc->screen, draw, read, + & gc->driContext); +} + + +static Bool UnbindContextWrapper( GLXContext gc ) +{ + return (*gc->driContext.unbindContext)(gc->currentDpy, gc->screen, + gc->currentDrawable, + gc->currentReadable, + & gc->driContext ); +} +#endif /* GLX_DIRECT_RENDERING */ + + +/** + * Make a particular context current. + * + * \note This is in this file so that it can access dummyContext. + */ +USED static Bool MakeContextCurrent(Display *dpy, GLXDrawable draw, + GLXDrawable read, GLXContext gc) +{ + xGLXMakeCurrentReply reply; + const GLXContext oldGC = __glXGetCurrentContext(); + const CARD8 opcode = __glXSetupForCommand(dpy); + const CARD8 oldOpcode = ((gc == oldGC) || (oldGC == &dummyContext)) + ? opcode : __glXSetupForCommand(oldGC->currentDpy); + Bool bindReturnValue; + + + if (!opcode || !oldOpcode) { + return GL_FALSE; + } + + /* Make sure that the new context has a nonzero ID. In the request, + * a zero context ID is used only to mean that we bind to no current + * context. + */ + if ((gc != NULL) && (gc->xid == None)) { + return GL_FALSE; + } + +#ifndef GLX_DIRECT_RENDERING + if (gc && gc->isDirect) { + return GL_FALSE; + } +#endif + + _glapi_check_multithread(); + +#ifdef GLX_DIRECT_RENDERING + /* Bind the direct rendering context to the drawable */ + if (gc && gc->isDirect) { + bindReturnValue = (gc->driContext.private) + ? BindContextWrapper(dpy, gc, draw, read) + : False; + } else +#endif + { + /* Send a glXMakeCurrent request to bind the new context. */ + bindReturnValue = + SendMakeCurrentRequest(dpy, opcode, gc ? gc->xid : None, + ((dpy != oldGC->currentDpy) || oldGC->isDirect) + ? None : oldGC->currentContextTag, + draw, read, &reply); + } + + + if (!bindReturnValue) { + return False; + } + + if ((dpy != oldGC->currentDpy || (gc && gc->isDirect)) && + !oldGC->isDirect && oldGC != &dummyContext) { + xGLXMakeCurrentReply dummy_reply; + + /* We are either switching from one dpy to another and have to + * send a request to the previous dpy to unbind the previous + * context, or we are switching away from a indirect context to + * a direct context and have to send a request to the dpy to + * unbind the previous context. + */ + (void) SendMakeCurrentRequest(oldGC->currentDpy, oldOpcode, None, + oldGC->currentContextTag, None, None, + & dummy_reply); + } +#ifdef GLX_DIRECT_RENDERING + else if (oldGC->isDirect && oldGC->driContext.private) { + (void) UnbindContextWrapper(oldGC); + } +#endif + + + /* Update our notion of what is current */ + __glXLock(); + if (gc == oldGC) { + /* Even though the contexts are the same the drawable might have + * changed. Note that gc cannot be the dummy, and that oldGC + * cannot be NULL, therefore if they are the same, gc is not + * NULL and not the dummy. + */ + gc->currentDrawable = draw; + gc->currentReadable = read; + } else { + if (oldGC != &dummyContext) { + /* Old current context is no longer current to anybody */ + oldGC->currentDpy = 0; + oldGC->currentDrawable = None; + oldGC->currentReadable = None; + oldGC->currentContextTag = 0; + + if (oldGC->xid == None) { + /* We are switching away from a context that was + * previously destroyed, so we need to free the memory + * for the old handle. + */ +#ifdef GLX_DIRECT_RENDERING + /* Destroy the old direct rendering context */ + if (oldGC->isDirect) { + if (oldGC->driContext.private) { + (*oldGC->driContext.destroyContext) + (dpy, oldGC->screen, oldGC->driContext.private); + oldGC->driContext.private = NULL; + } + } +#endif + __glXFreeContext(oldGC); + } + } + if (gc) { + __glXSetCurrentContext(gc); + + gc->currentDpy = dpy; + gc->currentDrawable = draw; + gc->currentReadable = read; + + if (!gc->isDirect) { + if (!IndirectAPI) + IndirectAPI = __glXNewIndirectAPI(); + _glapi_set_dispatch(IndirectAPI); + +#ifdef GLX_USE_APPLEGL + do { + extern void XAppleDRIUseIndirectDispatch(void); + XAppleDRIUseIndirectDispatch(); + } while (0); +#endif + + __GLXattribute *state = + (__GLXattribute *)(gc->client_state_private); + + gc->currentContextTag = reply.contextTag; + if (state->array_state == NULL) { + (void) glGetString(GL_EXTENSIONS); + (void) glGetString(GL_VERSION); + __glXInitVertexArrayState(gc); + } + } + else { + gc->currentContextTag = -1; + } + } else { + __glXSetCurrentContext(&dummyContext); +#ifdef GLX_DIRECT_RENDERING + _glapi_set_dispatch(NULL); /* no-op functions */ +#endif + } + } + __glXUnlock(); + return GL_TRUE; +} + + +PUBLIC Bool glXMakeCurrent(Display *dpy, GLXDrawable draw, GLXContext gc) +{ + return MakeContextCurrent( dpy, draw, draw, gc ); +} + +PUBLIC GLX_ALIAS(Bool, glXMakeCurrentReadSGI, + (Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx), + (dpy, d, r, ctx), MakeContextCurrent) + +PUBLIC GLX_ALIAS(Bool, glXMakeContextCurrent, + (Display *dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx), + (dpy, d, r, ctx), MakeContextCurrent) + + #ifdef DEBUG -_X_HIDDEN void __glXDumpDrawBuffer(__GLXcontext *ctx) +void __glXDumpDrawBuffer(__GLXcontext *ctx) { GLubyte *p = ctx->buf; GLubyte *end = ctx->pc; @@ -930,23 +1832,9 @@ _X_HIDDEN void __glXDumpDrawBuffer(__GLXcontext *ctx) #ifdef USE_SPARC_ASM /* - * This is where our dispatch table's bounds are. - * And the static mesa_init is taken directly from - * Mesa's 'sparc.c' initializer. + * Used only when we are sparc, using sparc assembler. * - * We need something like this here, because this version - * of openGL/glx never initializes a Mesa context, and so - * the address of the dispatch table pointer never gets stuffed - * into the dispatch jump table otherwise. - * - * It matters only on SPARC, and only if you are using assembler - * code instead of C-code indirect dispatch. - * - * -- FEM, 04.xii.03 */ -extern unsigned int _mesa_sparc_glapi_begin; -extern unsigned int _mesa_sparc_glapi_end; -extern void __glapi_sparc_icache_flush(unsigned int *); static void _glx_mesa_init_sparc_glapi_relocs(void) |