/*
** Free the per screen configs data as well as the array of
** __glXScreenConfigs.
*/
static void
FreeScreenConfigs(struct glx_display * priv)
{
struct glx_screen *psc;
GLint i, screens;
/* Free screen configuration information */
screens = ScreenCount(priv->dpy);
for (i = 0; i < screens; i++) {
psc = priv->screens[i];
if (psc->configs) {
glx_config_destroy_list(psc->configs);
if (psc->effectiveGLXexts)
Xfree(psc->effectiveGLXexts);
psc->configs = NULL; /* NOTE: just for paranoia */
}
if (psc->visuals) {
glx_config_destroy_list(psc->visuals);
psc->visuals = NULL; /* NOTE: just for paranoia */
}
Xfree((char *) psc->serverGLXexts);
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
if (psc->driScreen) {
psc->driScreen->destroyScreen(psc);
} else {
Xfree(psc);
}
#else
Xfree(psc);
#endif
}
XFree((char *) priv->screens);
priv->screens = NULL;
}
_X_HIDDEN void
glx_screen_cleanup(struct glx_screen *psc)
{
if (psc->configs) {
glx_config_destroy_list(psc->configs);
free(psc->effectiveGLXexts);
psc->configs = NULL; /* NOTE: just for paranoia */
}
if (psc->visuals) {
glx_config_destroy_list(psc->visuals);
psc->visuals = NULL; /* NOTE: just for paranoia */
}
free((char *) psc->serverGLXexts);
}
/**
* Allocate a linked list of \c struct glx_config structures. The fields of
* each structure will be initialized to "reasonable" default values. In
* most cases this is the default value defined by table 3.4 of the GLX
* 1.3 specification. This means that most values are either initialized to
* zero or \c GLX_DONT_CARE (which is -1). As support for additional
* extensions is added, the new values will be initialized to appropriate
* values from the extension specification.
*
* \param count Number of structures to allocate.
* \param minimum_size Minimum size of a structure to allocate. This allows
* for differences in the version of the
* \c struct glx_config stucture used in libGL and in a
* DRI-based driver.
* \returns A pointer to the first element in a linked list of \c count
* stuctures on success, or \c NULL on failure.
*/
_X_HIDDEN struct glx_config *
glx_config_create_list(unsigned count)
{
const size_t size = sizeof(struct glx_config);
struct glx_config *base = NULL;
struct glx_config **next;
unsigned i;
next = &base;
for (i = 0; i < count; i++) {
*next = (struct glx_config *) malloc(size);
if (*next == NULL) {
glx_config_destroy_list(base);
base = NULL;
break;
}
(void) memset(*next, 0, size);
(*next)->visualID = GLX_DONT_CARE;
(*next)->visualType = GLX_DONT_CARE;
(*next)->visualRating = GLX_NONE;
(*next)->transparentPixel = GLX_NONE;
(*next)->transparentRed = GLX_DONT_CARE;
(*next)->transparentGreen = GLX_DONT_CARE;
(*next)->transparentBlue = GLX_DONT_CARE;
(*next)->transparentAlpha = GLX_DONT_CARE;
(*next)->transparentIndex = GLX_DONT_CARE;
(*next)->xRenderable = GLX_DONT_CARE;
(*next)->fbconfigID = GLX_DONT_CARE;
(*next)->swapMethod = GLX_SWAP_UNDEFINED_OML;
(*next)->bindToTextureRgb = GLX_DONT_CARE;
(*next)->bindToTextureRgba = GLX_DONT_CARE;
(*next)->bindToMipmapTexture = GLX_DONT_CARE;
(*next)->bindToTextureTargets = GLX_DONT_CARE;
(*next)->yInverted = GLX_DONT_CARE;
next = &((*next)->next);
}
return base;
}
_X_HIDDEN struct glx_config *
driConvertConfigs(const __DRIcoreExtension * core,
struct glx_config *configs, const __DRIconfig **driConfigs)
{
struct glx_config head, *tail, *m;
tail = &head;
head.next = NULL;
for (m = configs; m; m = m->next) {
tail->next = createDriMode(core, m, driConfigs);
if (tail->next == NULL) {
/* no matching dri config for m */
continue;
}
tail = tail->next;
}
glx_config_destroy_list(configs);
return head.next;
}
/**
* 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;
