diff options
Diffstat (limited to 'src/glx/x11/dri_glx.c')
| -rw-r--r-- | src/glx/x11/dri_glx.c | 883 |
1 files changed, 538 insertions, 345 deletions
diff --git a/src/glx/x11/dri_glx.c b/src/glx/x11/dri_glx.c index 5cf9923979a..d53f2d98541 100644 --- a/src/glx/x11/dri_glx.c +++ b/src/glx/x11/dri_glx.c @@ -24,7 +24,6 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. **************************************************************************/ -/* $XFree86: xc/lib/GL/dri/dri_glx.c,v 1.14 2003/07/16 00:54:00 dawes Exp $ */ /* * Authors: @@ -35,260 +34,47 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #ifdef GLX_DIRECT_RENDERING -#include <unistd.h> -#include <X11/Xlibint.h> -#include <X11/extensions/Xext.h> -#include <X11/extensions/extutil.h> +#include <X11/Xlib.h> +#include <X11/extensions/Xfixes.h> +#include <X11/extensions/Xdamage.h> #include "glheader.h" #include "glxclient.h" +#include "glcontextmodes.h" #include "xf86dri.h" #include "sarea.h" -#include <stdio.h> #include <dlfcn.h> -#include "dri_glx.h" #include <sys/types.h> -#include <stdarg.h> - -#ifndef RTLD_NOW -#define RTLD_NOW 0 -#endif -#ifndef RTLD_GLOBAL -#define RTLD_GLOBAL 0 -#endif - - -#ifndef DEFAULT_DRIVER_DIR -/* this is normally defined in Mesa/configs/default with DRI_DRIVER_SEARCH_PATH */ -#define DEFAULT_DRIVER_DIR "/usr/X11R6/lib/modules/dri" -#endif - -static __DRIdriver *Drivers = NULL; - - -/* - * printf wrappers - */ - -static void InfoMessageF(const char *f, ...) -{ - va_list args; - const char *env; - - if ((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose")) { - fprintf(stderr, "libGL: "); - va_start(args, f); - vfprintf(stderr, f, args); - va_end(args); - } -} - -/** - * Print error to stderr, unless LIBGL_DEBUG=="quiet". - */ -static void ErrorMessageF(const char *f, ...) -{ - va_list args; - const char *env; - - if ((env = getenv("LIBGL_DEBUG")) && !strstr(env, "quiet")) { - fprintf(stderr, "libGL error: "); - va_start(args, f); - vfprintf(stderr, f, args); - va_end(args); - } -} - - -/** - * Extract the ith directory path out of a colon-separated list of paths. No - * more than \c dirLen characters, including the terminating \c NUL, will be - * written to \c dir. - * - * \param index Index of path to extract (starting at zero) - * \param paths The colon-separated list of paths - * \param dirLen Maximum length of result to store in \c dir - * \param dir Buffer to hold the extracted directory path - * - * \returns - * The number of characters that would have been written to \c dir had there - * been enough room. This does not include the terminating \c NUL. When - * extraction fails, zero will be returned. - * - * \todo - * It seems like this function could be rewritten to use \c strchr. - */ -static size_t -ExtractDir(int index, const char *paths, int dirLen, char *dir) -{ - int i, len; - const char *start, *end; - - /* find ith colon */ - start = paths; - i = 0; - while (i < index) { - if (*start == ':') { - i++; - start++; - } - else if (*start == 0) { - /* end of string and couldn't find ith colon */ - dir[0] = 0; - return 0; - } - else { - start++; - } - } - - while (*start == ':') - start++; - - /* find next colon, or end of string */ - end = start + 1; - while (*end != ':' && *end != 0) { - end++; - } - - /* copy string between <start> and <end> into result string */ - len = end - start; - if (len > dirLen - 1) - len = dirLen - 1; - strncpy(dir, start, len); - dir[len] = 0; - - return( end - start ); -} - - -/** - * Versioned name of the expected \c __driCreateNewScreen function. - * - * The version of the last incompatible loader/driver inteface change is - * appended to the name of the \c __driCreateNewScreen function. This - * prevents loaders from trying to load drivers that are too old. - * - * \todo - * Create a macro or something so that this is automatically updated. - */ -static const char createNewScreenName[] = "__driCreateNewScreen_20050727"; - - -/** - * Try to \c dlopen the named driver. - * - * This function adds the "_dri.so" suffix to the driver name and searches the - * directories specified by the \c LIBGL_DRIVERS_PATH environment variable in - * order to find the driver. - * - * \param driverName - a name like "tdfx", "i810", "mga", etc. - * - * \returns - * A handle from \c dlopen, or \c NULL if driver file not found. - */ -static __DRIdriver *OpenDriver(const char *driverName) -{ - void *glhandle = NULL; - char *libPaths = NULL; - char libDir[1000]; - int i; - __DRIdriver *driver; - - /* First, search Drivers list to see if we've already opened this driver */ - for (driver = Drivers; driver; driver = driver->next) { - if (strcmp(driver->name, driverName) == 0) { - /* found it */ - return driver; - } - } - - /* Attempt to make sure libGL symbols will be visible to the driver */ - glhandle = dlopen("libGL.so.1", RTLD_NOW | RTLD_GLOBAL); - - if (geteuid() == getuid()) { - /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */ - libPaths = getenv("LIBGL_DRIVERS_PATH"); - if (!libPaths) - libPaths = getenv("LIBGL_DRIVERS_DIR"); /* deprecated */ - } - if (!libPaths) - libPaths = DEFAULT_DRIVER_DIR; - - for ( i = 0 ; ExtractDir(i, libPaths, 1000, libDir) != 0 ; i++ ) { - char realDriverName[200]; - void *handle = NULL; - - - /* If TLS support is enabled, try to open the TLS version of the driver - * binary first. If that fails, try the non-TLS version. - */ -#ifdef GLX_USE_TLS - snprintf(realDriverName, 200, "%s/tls/%s_dri.so", libDir, driverName); - InfoMessageF("OpenDriver: trying %s\n", realDriverName); - handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL); -#endif - - if ( handle == NULL ) { - snprintf(realDriverName, 200, "%s/%s_dri.so", libDir, driverName); - InfoMessageF("OpenDriver: trying %s\n", realDriverName); - handle = dlopen(realDriverName, RTLD_NOW | RTLD_GLOBAL); - } - - if ( handle != NULL ) { - /* allocate __DRIdriver struct */ - driver = (__DRIdriver *) Xmalloc(sizeof(__DRIdriver)); - if (!driver) - break; /* out of memory! */ - /* init the struct */ - driver->name = __glXstrdup(driverName); - if (!driver->name) { - Xfree(driver); - driver = NULL; - break; /* out of memory! */ - } - - driver->createNewScreenFunc = (PFNCREATENEWSCREENFUNC) - dlsym(handle, createNewScreenName); - - if ( driver->createNewScreenFunc == NULL ) { - /* If the driver doesn't have this symbol then something's - * really, really wrong. - */ - ErrorMessageF("%s not defined in %s_dri.so!\n" - "Your driver may be too old for this libGL.\n", - createNewScreenName, driverName); - Xfree(driver); - driver = NULL; - dlclose(handle); - continue; - } - driver->handle = handle; - /* put at head of linked list */ - driver->next = Drivers; - Drivers = driver; - break; - } - else { - ErrorMessageF("dlopen %s failed (%s)\n", realDriverName, dlerror()); - } - } - - if (!driver) - ErrorMessageF("unable to load driver: %s_dri.so\n", driverName); - - if (glhandle) - dlclose(glhandle); - - return driver; -} - +#include <sys/mman.h> +#include "xf86drm.h" +#include "dri_common.h" + +typedef struct __GLXDRIdisplayPrivateRec __GLXDRIdisplayPrivate; +typedef struct __GLXDRIcontextPrivateRec __GLXDRIcontextPrivate; + +struct __GLXDRIdisplayPrivateRec { + __GLXDRIdisplay base; + + /* + ** XFree86-DRI version information + */ + int driMajor; + int driMinor; + int driPatch; +}; + +struct __GLXDRIcontextPrivateRec { + __GLXDRIcontext base; + __DRIcontext *driContext; + XID hwContextID; + __GLXscreenConfigs *psc; +}; /* * Given a display pointer and screen number, determine the name of * the DRI driver for the screen. (I.e. "r128", "tdfx", etc). * Return True for success, False for failure. */ -static Bool GetDriverName(Display *dpy, int scrNum, char **driverName) +static Bool driGetDriverName(Display *dpy, int scrNum, char **driverName) { int directCapable; Bool b; @@ -318,25 +104,6 @@ static Bool GetDriverName(Display *dpy, int scrNum, char **driverName) return True; } - -/* - * Given a display pointer and screen number, return a __DRIdriver handle. - * Return NULL if anything goes wrong. - */ -__DRIdriver *driGetDriver(Display *dpy, int scrNum) -{ - char *driverName; - if (GetDriverName(dpy, scrNum, &driverName)) { - __DRIdriver *ret; - ret = OpenDriver(driverName); - if (driverName) - Xfree(driverName); - return ret; - } - return NULL; -} - - /* * Exported function for querying the DRI driver for a given screen. * @@ -346,7 +113,7 @@ __DRIdriver *driGetDriver(Display *dpy, int scrNum) PUBLIC const char *glXGetScreenDriver (Display *dpy, int scrNum) { static char ret[32]; char *driverName; - if (GetDriverName(dpy, scrNum, &driverName)) { + if (driGetDriverName(dpy, scrNum, &driverName)) { int len; if (!driverName) return NULL; @@ -360,7 +127,6 @@ PUBLIC const char *glXGetScreenDriver (Display *dpy, int scrNum) { return NULL; } - /* * Exported function for obtaining a driver's option list (UTF-8 encoded XML). * @@ -372,71 +138,529 @@ PUBLIC const char *glXGetScreenDriver (Display *dpy, int scrNum) { * * Note: The driver remains opened after this function returns. */ -PUBLIC const char *glXGetDriverConfig (const char *driverName) { - __DRIdriver *driver = OpenDriver (driverName); - if (driver) - return dlsym (driver->handle, "__driConfigOptions"); +PUBLIC const char *glXGetDriverConfig (const char *driverName) +{ + void *handle = driOpenDriver (driverName); + if (handle) + return dlsym (handle, "__driConfigOptions"); else return NULL; } +#ifdef XDAMAGE_1_1_INTERFACE -/* Called from __glXFreeDisplayPrivate. +static GLboolean has_damage_post(Display *dpy) +{ + static GLboolean inited = GL_FALSE; + static GLboolean has_damage; + + if (!inited) { + int major, minor; + + if (XDamageQueryVersion(dpy, &major, &minor) && + major == 1 && minor >= 1) + { + has_damage = GL_TRUE; + } else { + has_damage = GL_FALSE; + } + inited = GL_TRUE; + } + + return has_damage; +} + +static void __glXReportDamage(__DRIdrawable *driDraw, + int x, int y, + drm_clip_rect_t *rects, int num_rects, + GLboolean front_buffer, + void *loaderPrivate) +{ + XRectangle *xrects; + XserverRegion region; + int i; + int x_off, y_off; + __GLXDRIdrawable *glxDraw = loaderPrivate; + __GLXscreenConfigs *psc = glxDraw->psc; + Display *dpy = psc->dpy; + Drawable drawable; + + if (!has_damage_post(dpy)) + return; + + if (front_buffer) { + x_off = x; + y_off = y; + drawable = RootWindow(dpy, psc->scr); + } else{ + x_off = 0; + y_off = 0; + drawable = glxDraw->xDrawable; + } + + 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); +} + +static const __DRIdamageExtension damageExtension = { + { __DRI_DAMAGE, __DRI_DAMAGE_VERSION }, + __glXReportDamage, +}; + +#endif + +static GLboolean +__glXDRIGetDrawableInfo(__DRIdrawable *drawable, + unsigned int *index, unsigned int *stamp, + int *X, int *Y, int *W, int *H, + int *numClipRects, drm_clip_rect_t ** pClipRects, + int *backX, int *backY, + int *numBackClipRects, drm_clip_rect_t **pBackClipRects, + void *loaderPrivate) +{ + __GLXDRIdrawable *glxDraw = loaderPrivate; + __GLXscreenConfigs *psc = glxDraw->psc; + Display *dpy = psc->dpy; + + return XF86DRIGetDrawableInfo(dpy, psc->scr, glxDraw->drawable, + index, stamp, X, Y, W, H, + numClipRects, pClipRects, + backX, backY, + numBackClipRects, pBackClipRects); +} + +static const __DRIgetDrawableInfoExtension getDrawableInfoExtension = { + { __DRI_GET_DRAWABLE_INFO, __DRI_GET_DRAWABLE_INFO_VERSION }, + __glXDRIGetDrawableInfo +}; + +static const __DRIextension *loader_extensions[] = { + &systemTimeExtension.base, + &getDrawableInfoExtension.base, +#ifdef XDAMAGE_1_1_INTERFACE + &damageExtension.base, +#endif + NULL +}; + +#ifndef GLX_USE_APPLEGL + +/** + * 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. */ -static void driDestroyDisplay(Display *dpy, void *private) +static void * +CallCreateNewScreen(Display *dpy, int scrn, __GLXscreenConfigs *psc, + __GLXDRIdisplayPrivate * driDpy) +{ + void *psp = NULL; + 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; + + drm_magic_t magic; + drmVersionPtr version; + int newlyopened; + char *driverName; + drm_handle_t hFB; + int junk; + const __DRIconfig **driver_configs; + + /* DRI protocol version. */ + dri_version.major = driDpy->driMajor; + dri_version.minor = driDpy->driMinor; + dri_version.patch = driDpy->driPatch; + + framebuffer.base = MAP_FAILED; + framebuffer.dev_priv = NULL; + + if (!XF86DRIOpenConnection(dpy, scrn, &hSAREA, &BusID)) { + ErrorMessageF("XF86DRIOpenConnection failed\n"); + goto handle_error; + } + + fd = drmOpenOnce(NULL, BusID, &newlyopened); + + Xfree(BusID); /* No longer needed */ + + if (fd < 0) { + ErrorMessageF("drmOpenOnce failed (%s)\n", strerror(-fd)); + goto handle_error; + } + + if (drmGetMagic(fd, &magic)) { + ErrorMessageF("drmGetMagic failed\n"); + goto handle_error; + } + + 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; + } + + if (newlyopened && !XF86DRIAuthConnection(dpy, scrn, magic)) { + ErrorMessageF("XF86DRIAuthConnection failed\n"); + goto handle_error; + } + + /* Get device name (like "tdfx") and the ddx version numbers. + * We'll check the version in each DRI driver's "createNewScreen" + * function. */ + if (!XF86DRIGetClientDriverName(dpy, scrn, + &ddx_version.major, + &ddx_version.minor, + &ddx_version.patch, + &driverName)) { + ErrorMessageF("XF86DRIGetClientDriverName failed\n"); + goto handle_error; + } + + Xfree(driverName); /* No longer needed. */ + + /* + * 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. + */ + if (!XF86DRIGetDeviceInfo(dpy, scrn, &hFB, &junk, + &framebuffer.size, &framebuffer.stride, + &framebuffer.dev_priv_size, &framebuffer.dev_priv)) { + ErrorMessageF("XF86DRIGetDeviceInfo failed"); + goto handle_error; + } + + framebuffer.width = DisplayWidth(dpy, scrn); + framebuffer.height = DisplayHeight(dpy, scrn); + + /* Map the framebuffer region. */ + status = drmMap(fd, hFB, framebuffer.size, + (drmAddressPtr)&framebuffer.base); + if (status != 0) { + ErrorMessageF("drmMap of framebuffer failed (%s)", strerror(-status)); + goto handle_error; + } + + /* Map the SAREA region. Further mmap regions may be setup in + * each DRI driver's "createNewScreen" function. + */ + status = drmMap(fd, hSAREA, SAREA_MAX, &pSAREA); + if (status != 0) { + ErrorMessageF("drmMap of SAREA failed (%s)", strerror(-status)); + goto handle_error; + } + + psp = (*psc->legacy->createNewScreen)(scrn, + &ddx_version, + &dri_version, + &drm_version, + &framebuffer, + pSAREA, + fd, + loader_extensions, + &driver_configs, + psc); + + if (psp == NULL) { + ErrorMessageF("Calling driver entry point failed"); + goto handle_error; + } + + psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs); + psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs); + + return psp; + + handle_error: + if (pSAREA != MAP_FAILED) + drmUnmap(pSAREA, SAREA_MAX); + + if (framebuffer.base != MAP_FAILED) + drmUnmap((drmAddress)framebuffer.base, framebuffer.size); + + if (framebuffer.dev_priv != NULL) + Xfree(framebuffer.dev_priv); + + if (fd >= 0) + drmCloseOnce(fd); + + XF86DRICloseConnection(dpy, scrn); + + ErrorMessageF("reverting to software direct rendering\n"); + + return NULL; +} + +#else /* !GLX_USE_APPLEGL */ + +static void * +CallCreateNewScreen(Display *dpy, int scrn, __GLXscreenConfigs *psc, + __GLXDRIdisplayPrivate * driDpy) { - __DRIdisplayPrivate *pdpyp = (__DRIdisplayPrivate *)private; - - if (pdpyp) { - const int numScreens = ScreenCount(dpy); - int i; - for (i = 0; i < numScreens; i++) { - if (pdpyp->libraryHandles[i]) { - __DRIdriver *driver, *prev; - - /* Remove driver from Drivers list */ - for (prev = NULL, driver = Drivers; driver; - prev = driver, driver = driver->next) { - if (driver->handle == pdpyp->libraryHandles[i]) { - if (prev) - prev->next = driver->next; - else - Drivers = driver->next; - - Xfree(driver->name); - Xfree(driver); - break; - } - } - - dlclose(pdpyp->libraryHandles[i]); - } - } - Xfree(pdpyp->libraryHandles); - Xfree(pdpyp); + return NULL; +} + +#endif /* !GLX_USE_APPLEGL */ + +static void driDestroyContext(__GLXDRIcontext *context, + __GLXscreenConfigs *psc, Display *dpy) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + + (*psc->core->destroyContext)(pcp->driContext); + + XF86DRIDestroyContext(psc->dpy, psc->scr, pcp->hwContextID); +} + +static Bool driBindContext(__GLXDRIcontext *context, + __GLXDRIdrawable *draw, __GLXDRIdrawable *read) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + return (*core->bindContext)(pcp->driContext, + draw->driDrawable, + read->driDrawable); +} + +static void driUnbindContext(__GLXDRIcontext *context) +{ + __GLXDRIcontextPrivate *pcp = (__GLXDRIcontextPrivate *) context; + const __DRIcoreExtension *core = pcp->psc->core; + + (*core->unbindContext)(pcp->driContext); +} + +static __GLXDRIcontext *driCreateContext(__GLXscreenConfigs *psc, + const __GLcontextModes *mode, + GLXContext gc, + GLXContext shareList, int renderType) +{ + __GLXDRIcontextPrivate *pcp, *pcp_shared; + drm_context_t hwContext; + __DRIcontext *shared = NULL; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) mode; + + if (!psc || !psc->driScreen) + return NULL; + + if (shareList) { + pcp_shared = (__GLXDRIcontextPrivate *) shareList->driContext; + shared = pcp_shared->driContext; + } + + pcp = Xmalloc(sizeof *pcp); + if (pcp == NULL) + return NULL; + + pcp->psc = psc; + if (!XF86DRICreateContextWithConfig(psc->dpy, psc->scr, + mode->visualID, + &pcp->hwContextID, &hwContext)) { + Xfree(pcp); + return NULL; } + + pcp->driContext = + (*psc->legacy->createNewContext)(psc->__driScreen, + config->driConfig, + renderType, + shared, + hwContext, + pcp); + if (pcp->driContext == NULL) { + XF86DRIDestroyContext(psc->dpy, psc->scr, pcp->hwContextID); + Xfree(pcp); + return NULL; + } + + pcp->base.destroyContext = driDestroyContext; + pcp->base.bindContext = driBindContext; + pcp->base.unbindContext = driUnbindContext; + + return &pcp->base; } +static void driDestroyDrawable(__GLXDRIdrawable *pdraw) +{ + __GLXscreenConfigs *psc = pdraw->psc; + + (*psc->core->destroyDrawable)(pdraw->driDrawable); + XF86DRIDestroyDrawable(psc->dpy, psc->scr, pdraw->drawable); + Xfree(pdraw); +} + +static __GLXDRIdrawable *driCreateDrawable(__GLXscreenConfigs *psc, + XID xDrawable, + GLXDrawable drawable, + const __GLcontextModes *modes) +{ + __GLXDRIdrawable *pdraw; + drm_drawable_t hwDrawable; + void *empty_attribute_list = NULL; + __GLXDRIconfigPrivate *config = (__GLXDRIconfigPrivate *) modes; + + /* Old dri can't handle GLX 1.3+ drawable constructors. */ + if (xDrawable != drawable) + return NULL; + + pdraw = Xmalloc(sizeof(*pdraw)); + if (!pdraw) + return NULL; + + pdraw->drawable = drawable; + pdraw->psc = psc; + + if (!XF86DRICreateDrawable(psc->dpy, psc->scr, drawable, &hwDrawable)) + return NULL; + + /* Create a new drawable */ + pdraw->driDrawable = + (*psc->legacy->createNewDrawable)(psc->__driScreen, + config->driConfig, + hwDrawable, + GLX_WINDOW_BIT, + empty_attribute_list, + pdraw); + + if (!pdraw->driDrawable) { + XF86DRIDestroyDrawable(psc->dpy, psc->scr, drawable); + Xfree(pdraw); + return NULL; + } + + pdraw->destroyDrawable = driDestroyDrawable; + + return pdraw; +} + +static void driDestroyScreen(__GLXscreenConfigs *psc) +{ + /* Free the direct rendering per screen data */ + if (psc->__driScreen) + (*psc->core->destroyScreen)(psc->__driScreen); + psc->__driScreen = NULL; + if (psc->driver) + dlclose(psc->driver); +} + +static __GLXDRIscreen *driCreateScreen(__GLXscreenConfigs *psc, int screen, + __GLXdisplayPrivate *priv) +{ + __GLXDRIdisplayPrivate *pdp; + __GLXDRIscreen *psp; + const __DRIextension **extensions; + char *driverName; + int i; + + psp = Xmalloc(sizeof *psp); + if (psp == NULL) + return NULL; + + /* Initialize per screen dynamic client GLX extensions */ + psc->ext_list_first_time = GL_TRUE; + + if (!driGetDriverName(priv->dpy, screen, &driverName)) { + Xfree(psp); + return NULL; + } + + psc->driver = driOpenDriver(driverName); + Xfree(driverName); + if (psc->driver == NULL) { + Xfree(psp); + return NULL; + } + + extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS); + if (extensions == NULL) { + ErrorMessageF("driver exports no extensions (%s)\n", dlerror()); + Xfree(psp); + return NULL; + } + + for (i = 0; extensions[i]; i++) { + if (strcmp(extensions[i]->name, __DRI_CORE) == 0) + psc->core = (__DRIcoreExtension *) extensions[i]; + if (strcmp(extensions[i]->name, __DRI_LEGACY) == 0) + psc->legacy = (__DRIlegacyExtension *) extensions[i]; + } + + if (psc->core == NULL || psc->legacy == NULL) { + Xfree(psp); + return NULL; + } + + pdp = (__GLXDRIdisplayPrivate *) priv->driDisplay; + psc->__driScreen = + CallCreateNewScreen(psc->dpy, screen, psc, pdp); + if (psc->__driScreen == NULL) { + dlclose(psc->driver); + Xfree(psp); + return NULL; + } + + driBindExtensions(psc); + + psp->destroyScreen = driDestroyScreen; + psp->createContext = driCreateContext; + psp->createDrawable = driCreateDrawable; + + return psp; +} + +/* Called from __glXFreeDisplayPrivate. + */ +static void driDestroyDisplay(__GLXDRIdisplay *dpy) +{ + Xfree(dpy); +} /* * Allocate, initialize and return a __DRIdisplayPrivate object. * This is called from __glXInitialize() when we are given a new * display pointer. */ -void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp) +_X_HIDDEN __GLXDRIdisplay *driCreateDisplay(Display *dpy) { - const int numScreens = ScreenCount(dpy); - __DRIdisplayPrivate *pdpyp; + __GLXDRIdisplayPrivate *pdpyp; int eventBase, errorBase; int major, minor, patch; - int scrn; - - /* Initialize these fields to NULL in case we fail. - * If we don't do this we may later get segfaults trying to free random - * addresses when the display is closed. - */ - pdisp->private = NULL; - pdisp->destroyDisplay = NULL; if (!XF86DRIQueryExtension(dpy, &eventBase, &errorBase)) { return NULL; @@ -446,7 +670,7 @@ void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp) return NULL; } - pdpyp = (__DRIdisplayPrivate *)Xmalloc(sizeof(__DRIdisplayPrivate)); + pdpyp = Xmalloc(sizeof *pdpyp); if (!pdpyp) { return NULL; } @@ -455,41 +679,10 @@ void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp) pdpyp->driMinor = minor; pdpyp->driPatch = patch; - pdisp->destroyDisplay = driDestroyDisplay; - - /* allocate array of pointers to createNewScreen funcs */ - pdisp->createNewScreen = (PFNCREATENEWSCREENFUNC *) - Xmalloc(numScreens * sizeof(void *)); - if (!pdisp->createNewScreen) { - Xfree(pdpyp); - return NULL; - } - - /* allocate array of library handles */ - pdpyp->libraryHandles = (void **) Xmalloc(numScreens * sizeof(void*)); - if (!pdpyp->libraryHandles) { - Xfree(pdisp->createNewScreen); - Xfree(pdpyp); - return NULL; - } - - /* dynamically discover DRI drivers for all screens, saving each - * driver's "__driCreateScreen" function pointer. That's the bootstrap - * entrypoint for all DRI drivers. - */ - for (scrn = 0; scrn < numScreens; scrn++) { - __DRIdriver *driver = driGetDriver(dpy, scrn); - if (driver) { - pdisp->createNewScreen[scrn] = driver->createNewScreenFunc; - pdpyp->libraryHandles[scrn] = driver->handle; - } - else { - pdisp->createNewScreen[scrn] = NULL; - pdpyp->libraryHandles[scrn] = NULL; - } - } + pdpyp->base.destroyDisplay = driDestroyDisplay; + pdpyp->base.createScreen = driCreateScreen; - return (void *)pdpyp; + return &pdpyp->base; } #endif /* GLX_DIRECT_RENDERING */ |