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-rw-r--r--src/glx/x11/dri_glx.c885
1 files changed, 344 insertions, 541 deletions
diff --git a/src/glx/x11/dri_glx.c b/src/glx/x11/dri_glx.c
index 1cb3204d4c7..21e07c19355 100644
--- a/src/glx/x11/dri_glx.c
+++ b/src/glx/x11/dri_glx.c
@@ -34,47 +34,260 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifdef GLX_DIRECT_RENDERING
-#include <X11/Xlib.h>
-#include <X11/extensions/Xfixes.h>
-#include <X11/extensions/Xdamage.h>
+#include <unistd.h>
+#include <X11/Xlibint.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.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 <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;
-};
+#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;
+}
+
/*
* 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 driGetDriverName(Display *dpy, int scrNum, char **driverName)
+static Bool GetDriverName(Display *dpy, int scrNum, char **driverName)
{
int directCapable;
Bool b;
@@ -104,6 +317,25 @@ static Bool driGetDriverName(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.
*
@@ -113,7 +345,7 @@ static Bool driGetDriverName(Display *dpy, int scrNum, char **driverName)
PUBLIC const char *glXGetScreenDriver (Display *dpy, int scrNum) {
static char ret[32];
char *driverName;
- if (driGetDriverName(dpy, scrNum, &driverName)) {
+ if (GetDriverName(dpy, scrNum, &driverName)) {
int len;
if (!driverName)
return NULL;
@@ -127,6 +359,7 @@ PUBLIC const char *glXGetScreenDriver (Display *dpy, int scrNum) {
return NULL;
}
+
/*
* Exported function for obtaining a driver's option list (UTF-8 encoded XML).
*
@@ -138,532 +371,71 @@ PUBLIC const char *glXGetScreenDriver (Display *dpy, int scrNum) {
*
* Note: The driver remains opened after this function returns.
*/
-PUBLIC const char *glXGetDriverConfig (const char *driverName)
-{
- void *handle = driOpenDriver (driverName);
- if (handle)
- return dlsym (handle, "__driConfigOptions");
+PUBLIC const char *glXGetDriverConfig (const char *driverName) {
+ __DRIdriver *driver = OpenDriver (driverName);
+ if (driver)
+ return dlsym (driver->handle, "__driConfigOptions");
else
return NULL;
}
-#ifdef XDAMAGE_1_1_INTERFACE
-
-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.
+/* Called from __glXFreeDisplayPrivate.
*/
-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)) {
- fprintf(stderr, "libGL error: XF86DRIOpenConnection failed\n");
- goto handle_error;
- }
-
- fd = drmOpenOnce(NULL, BusID, &newlyopened);
-
- Xfree(BusID); /* No longer needed */
-
- if (fd < 0) {
- fprintf(stderr, "libGL error: drmOpenOnce failed (%s)\n",
- strerror(-fd));
- goto handle_error;
- }
-
- if (drmGetMagic(fd, &magic)) {
- fprintf(stderr, "libGL error: 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)) {
- fprintf(stderr, "libGL error: 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)) {
- fprintf(stderr, "libGL error: 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)) {
- fprintf(stderr, "libGL error: 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) {
- fprintf(stderr, "libGL error: 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) {
- fprintf(stderr, "libGL error: 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) {
- fprintf(stderr, "libGL error: 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);
-
- fprintf(stderr, "libGL error: reverting to (slow) indirect rendering\n");
-
- return NULL;
-}
-
-#else /* !GLX_USE_APPLEGL */
-
-static void *
-CallCreateNewScreen(Display *dpy, int scrn, __GLXscreenConfigs *psc,
- __GLXDRIdisplayPrivate * driDpy)
+static void driDestroyDisplay(Display *dpy, void *private)
{
- 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;
+ __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);
}
-
- 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.
*/
-_X_HIDDEN __GLXDRIdisplay *driCreateDisplay(Display *dpy)
+void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp)
{
- __GLXDRIdisplayPrivate *pdpyp;
+ const int numScreens = ScreenCount(dpy);
+ __DRIdisplayPrivate *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;
@@ -673,7 +445,7 @@ _X_HIDDEN __GLXDRIdisplay *driCreateDisplay(Display *dpy)
return NULL;
}
- pdpyp = Xmalloc(sizeof *pdpyp);
+ pdpyp = (__DRIdisplayPrivate *)Xmalloc(sizeof(__DRIdisplayPrivate));
if (!pdpyp) {
return NULL;
}
@@ -682,10 +454,41 @@ _X_HIDDEN __GLXDRIdisplay *driCreateDisplay(Display *dpy)
pdpyp->driMinor = minor;
pdpyp->driPatch = patch;
- pdpyp->base.destroyDisplay = driDestroyDisplay;
- pdpyp->base.createScreen = driCreateScreen;
+ 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;
+ }
+ }
- return &pdpyp->base;
+ return (void *)pdpyp;
}
#endif /* GLX_DIRECT_RENDERING */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 08:52:19 +0000