static __GLXDRIscreen *
driCreateScreen(__GLXscreenConfigs * psc, int screen,
__GLXdisplayPrivate * priv)
{
__GLXDRIscreen *psp;
const __DRIconfig **driver_configs;
const __DRIextension **extensions;
const char *driverName = "swrast";
int i;
psp = Xcalloc(1, sizeof *psp);
if (psp == NULL)
return NULL;
psc->driver = driOpenDriver(driverName);
if (psc->driver == NULL)
goto handle_error;
extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS);
if (extensions == NULL) {
ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
goto handle_error;
}
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_SWRAST) == 0)
psc->swrast = (__DRIswrastExtension *) extensions[i];
}
if (psc->core == NULL || psc->swrast == NULL) {
ErrorMessageF("core dri extension not found\n");
goto handle_error;
}
psc->__driScreen =
psc->swrast->createNewScreen(screen,
loader_extensions, &driver_configs, psc);
if (psc->__driScreen == NULL) {
ErrorMessageF("failed to create dri screen\n");
goto handle_error;
}
driBindExtensions(psc);
driBindCommonExtensions(psc);
psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs);
psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs);
psc->driver_configs = driver_configs;
psp->destroyScreen = driDestroyScreen;
psp->createContext = driCreateContext;
psp->createDrawable = driCreateDrawable;
psp->swapBuffers = driSwapBuffers;
psp->waitX = NULL;
psp->waitGL = NULL;
return psp;
handle_error:
Xfree(psp);
if (psc->driver)
dlclose(psc->driver);
ErrorMessageF("reverting to indirect rendering\n");
return NULL;
}
/**
* 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 __DRIscreen structure returned by
* the client-side driver on success, or \c NULL on failure.
*/
static void *
CallCreateNewScreen(Display *dpy, int scrn, struct dri_screen *psc,
struct dri_display * 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;
struct glx_config *visual, *configs = NULL, *visuals = NULL;
/* 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;
framebuffer.size = 0;
if (!XF86DRIOpenConnection(dpy, scrn, &hSAREA, &BusID)) {
ErrorMessageF("XF86DRIOpenConnection failed\n");
goto handle_error;
}
fd = drmOpenOnce(NULL, BusID, &newlyopened);
free(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 "radeon") 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;
}
free(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\n");
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)\n", 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)\n", 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\n");
goto handle_error;
}
configs = driConvertConfigs(psc->core, psc->base.configs, driver_configs);
visuals = driConvertConfigs(psc->core, psc->base.visuals, driver_configs);
if (!configs || !visuals)
goto handle_error;
glx_config_destroy_list(psc->base.configs);
psc->base.configs = configs;
glx_config_destroy_list(psc->base.visuals);
psc->base.visuals = visuals;
psc->driver_configs = driver_configs;
/* Visuals with depth != screen depth are subject to automatic compositing
* in the X server, so DRI1 can't render to them properly. Mark them as
* non-conformant to prevent apps from picking them up accidentally.
*/
for (visual = psc->base.visuals; visual; visual = visual->next) {
XVisualInfo template;
static __GLXDRIscreen *
dri2CreateScreen(__GLXscreenConfigs * psc, int screen,
__GLXdisplayPrivate * priv)
{
const __DRIconfig **driver_configs;
const __DRIextension **extensions;
const __GLXDRIdisplayPrivate *const pdp = (__GLXDRIdisplayPrivate *)
priv->dri2Display;
__GLXDRIscreen *psp;
char *driverName, *deviceName;
drm_magic_t magic;
int i;
psp = Xmalloc(sizeof *psp);
if (psp == NULL)
return NULL;
if (!DRI2Connect(psc->dpy, RootWindow(psc->dpy, screen),
&driverName, &deviceName)) {
XFree(psp);
return NULL;
}
psc->driver = driOpenDriver(driverName);
if (psc->driver == NULL) {
ErrorMessageF("driver pointer missing\n");
goto handle_error;
}
extensions = dlsym(psc->driver, __DRI_DRIVER_EXTENSIONS);
if (extensions == NULL) {
ErrorMessageF("driver exports no extensions (%s)\n", dlerror());
goto handle_error;
}
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_DRI2) == 0)
psc->dri2 = (__DRIdri2Extension *) extensions[i];
}
if (psc->core == NULL || psc->dri2 == NULL) {
ErrorMessageF("core dri or dri2 extension not found\n");
goto handle_error;
}
psc->fd = open(deviceName, O_RDWR);
if (psc->fd < 0) {
ErrorMessageF("failed to open drm device: %s\n", strerror(errno));
goto handle_error;
}
if (drmGetMagic(psc->fd, &magic)) {
ErrorMessageF("failed to get magic\n");
goto handle_error;
}
if (!DRI2Authenticate(psc->dpy, RootWindow(psc->dpy, screen), magic)) {
ErrorMessageF("failed to authenticate magic %d\n", magic);
goto handle_error;
}
/* If the server does not support the protocol for
* DRI2GetBuffersWithFormat, don't supply that interface to the driver.
*/
psc->__driScreen =
psc->dri2->createNewScreen(screen, psc->fd, ((pdp->driMinor < 1)
? loader_extensions_old
: loader_extensions),
&driver_configs, psc);
if (psc->__driScreen == NULL) {
ErrorMessageF("failed to create dri screen\n");
goto handle_error;
}
driBindCommonExtensions(psc);
dri2BindExtensions(psc);
psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs);
psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs);
psc->driver_configs = driver_configs;
psp->destroyScreen = dri2DestroyScreen;
psp->createContext = dri2CreateContext;
psp->createDrawable = dri2CreateDrawable;
psp->swapBuffers = dri2SwapBuffers;
psp->waitGL = dri2WaitGL;
psp->waitX = dri2WaitX;
psp->getDrawableMSC = NULL;
psp->waitForMSC = NULL;
psp->waitForSBC = NULL;
psp->setSwapInterval = NULL;
psp->getSwapInterval = NULL;
if (pdp->driMinor >= 2) {
#ifdef X_DRI2GetMSC
psp->getDrawableMSC = dri2DrawableGetMSC;
#endif
#ifdef X_DRI2WaitMSC
psp->waitForMSC = dri2WaitForMSC;
psp->waitForSBC = dri2WaitForSBC;
#endif
#ifdef X_DRI2SwapInterval
psp->setSwapInterval = dri2SetSwapInterval;
psp->getSwapInterval = dri2GetSwapInterval;
#endif
#if defined(X_DRI2GetMSC) && defined(X_DRI2WaitMSC) && defined(X_DRI2SwapInterval)
__glXEnableDirectExtension(psc, "GLX_OML_sync_control");
#endif
}
/* DRI2 suports SubBuffer through DRI2CopyRegion, so it's always
* available.*/
psp->copySubBuffer = dri2CopySubBuffer;
__glXEnableDirectExtension(psc, "GLX_MESA_copy_sub_buffer");
Xfree(driverName);
Xfree(deviceName);
return psp;
handle_error:
Xfree(driverName);
Xfree(deviceName);
XFree(psp);
/* FIXME: clean up here */
return NULL;
}
