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Diffstat (limited to 'xorg-server/hw/kdrive/ephyr/ephyrhostglx.c')
-rw-r--r--xorg-server/hw/kdrive/ephyr/ephyrhostglx.c703
1 files changed, 703 insertions, 0 deletions
diff --git a/xorg-server/hw/kdrive/ephyr/ephyrhostglx.c b/xorg-server/hw/kdrive/ephyr/ephyrhostglx.c
new file mode 100644
index 000000000..1eec4e02b
--- /dev/null
+++ b/xorg-server/hw/kdrive/ephyr/ephyrhostglx.c
@@ -0,0 +1,703 @@
+/*
+ * Xephyr - A kdrive X server thats runs in a host X window.
+ * Authored by Matthew Allum <mallum@openedhand.com>
+ *
+ * Copyright © 2007 OpenedHand Ltd
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of OpenedHand Ltd not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. OpenedHand Ltd makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * OpenedHand Ltd DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL OpenedHand Ltd BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * a lots of the content of this file has been adapted from the mesa source
+ * code.
+ * Authors:
+ * Dodji Seketeli <dodji@openedhand.com>
+ */
+#ifdef HAVE_CONFIG_H
+#include <kdrive-config.h>
+#endif
+
+/*
+ * including some server headers (like kdrive-config.h)
+ * might define the macro _XSERVER64
+ * on 64 bits machines. That macro must _NOT_ be defined for Xlib
+ * client code, otherwise bad things happen.
+ * So let's undef that macro if necessary.
+ */
+#ifdef _XSERVER64
+#undef _XSERVER64
+#endif
+
+#include <X11/Xlibint.h>
+#include <GL/glx.h>
+#include <GL/internal/glcore.h>
+#include <GL/glxproto.h>
+#include <GL/glxint.h>
+#include "ephyrhostglx.h"
+#define _HAVE_XALLOC_DECLS
+#include "ephyrlog.h"
+#include "hostx.h"
+
+#ifdef XEPHYR_DRI
+enum VisualConfRequestType {
+ EPHYR_GET_FB_CONFIG,
+ EPHYR_VENDOR_PRIV_GET_FB_CONFIG_SGIX,
+ EPHYR_GET_VISUAL_CONFIGS
+
+};
+
+static Bool ephyrHostGLXGetVisualConfigsInternal
+ (enum VisualConfRequestType a_type,
+ int32_t a_screen,
+ int32_t *a_num_visuals,
+ int32_t *a_num_props,
+ int32_t *a_props_buf_size,
+ int32_t **a_props_buf);
+Bool
+ephyrHostGLXGetMajorOpcode (int *a_opcode)
+{
+ Bool is_ok=FALSE ;
+ Display *dpy=hostx_get_display () ;
+ static int opcode ;
+ int first_event_return=0, first_error_return=0;
+
+ EPHYR_RETURN_VAL_IF_FAIL (dpy, FALSE) ;
+ EPHYR_LOG ("enter\n") ;
+ if (!opcode) {
+ if (!XQueryExtension (dpy, GLX_EXTENSION_NAME, &opcode,
+ &first_event_return, &first_error_return)) {
+ EPHYR_LOG_ERROR ("XQueryExtension() failed\n") ;
+ goto out ;
+ }
+ }
+ *a_opcode = opcode ;
+ is_ok = TRUE ;
+out:
+ EPHYR_LOG ("release\n") ;
+ return is_ok ;
+}
+
+Bool
+ephyrHostGLXQueryVersion (int *a_major, int *a_minor)
+{
+ Bool is_ok = FALSE ;
+ Display *dpy = hostx_get_display () ;
+ int major_opcode=0;
+ xGLXQueryVersionReq *req=NULL;
+ xGLXQueryVersionReply reply;
+
+ EPHYR_RETURN_VAL_IF_FAIL (a_major && a_minor, FALSE) ;
+ EPHYR_LOG ("enter\n") ;
+
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+ EPHYR_LOG ("major opcode: %d\n", major_opcode) ;
+
+ /* Send the glXQueryVersion request */
+ memset (&reply, 0, sizeof (reply)) ;
+ LockDisplay (dpy);
+ GetReq (GLXQueryVersion, req);
+ req->reqType = major_opcode;
+ req->glxCode = X_GLXQueryVersion;
+ req->majorVersion = 2;
+ req->minorVersion = 1;
+ _XReply(dpy, (xReply*) &reply, 0, False);
+ UnlockDisplay (dpy);
+ SyncHandle ();
+
+ *a_major = reply.majorVersion ;
+ *a_minor = reply.minorVersion ;
+
+ EPHYR_LOG ("major:%d, minor:%d\n", *a_major, *a_minor) ;
+
+ is_ok = TRUE ;
+out:
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+/**
+ * GLX protocol structure for the ficticious "GXLGenericGetString" request.
+ *
+ * This is a non-existant protocol packet. It just so happens that all of
+ * the real protocol packets used to request a string from the server have
+ * an identical binary layout. The only difference between them is the
+ * meaning of the \c for_whom field and the value of the \c glxCode.
+ * (this has been copied from the mesa source code)
+ */
+typedef struct GLXGenericGetString {
+ CARD8 reqType;
+ CARD8 glxCode;
+ CARD16 length B16;
+ CARD32 for_whom B32;
+ CARD32 name B32;
+} xGLXGenericGetStringReq;
+
+/* These defines are only needed to make the GetReq macro happy.
+ */
+#define sz_xGLXGenericGetStringReq 12
+#define X_GLXGenericGetString 0
+
+Bool
+ephyrHostGLXGetStringFromServer (int a_screen_number,
+ int a_string_name,
+ enum EphyrHostGLXGetStringOps a_op,
+ char **a_string)
+{
+ Bool is_ok=FALSE ;
+ Display *dpy = hostx_get_display () ;
+ int default_screen = DefaultScreen (dpy);
+ xGLXGenericGetStringReq *req=NULL;
+ xGLXSingleReply reply;
+ int length=0, numbytes=0, major_opcode=0, get_string_op=0;
+
+ EPHYR_RETURN_VAL_IF_FAIL (dpy && a_string, FALSE) ;
+
+ EPHYR_LOG ("enter\n") ;
+ switch (a_op) {
+ case EPHYR_HOST_GLX_QueryServerString:
+ get_string_op = X_GLXQueryServerString;
+ break ;
+ case EPHYR_HOST_GLX_GetString:
+ get_string_op = X_GLsop_GetString;
+ EPHYR_LOG ("Going to glXGetString. strname:%#x, ctxttag:%d\n",
+ a_string_name, a_screen_number) ;
+ break ;
+ default:
+ EPHYR_LOG_ERROR ("unknown EphyrHostGLXGetStringOp:%d\n", a_op) ;
+ goto out ;
+ }
+
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+ EPHYR_LOG ("major opcode: %d\n", major_opcode) ;
+
+ LockDisplay (dpy);
+
+ /* All of the GLX protocol requests for getting a string from the server
+ * look the same. The exact meaning of the a_for_whom field is usually
+ * either the screen number (for glXQueryServerString) or the context tag
+ * (for GLXSingle).
+ */
+ GetReq (GLXGenericGetString, req);
+ req->reqType = major_opcode;
+ req->glxCode = get_string_op;
+ req->for_whom = default_screen;
+ req->name = a_string_name;
+
+ _XReply (dpy, (xReply *)&reply, 0, False);
+
+ length = reply.length * 4;
+ if (!length) {
+ numbytes = 0;
+ } else {
+ numbytes = reply.size;
+ }
+ EPHYR_LOG ("going to get a string of size:%d\n", numbytes) ;
+
+ *a_string = (char *) Xmalloc (numbytes +1);
+ if (!a_string) {
+ EPHYR_LOG_ERROR ("allocation failed\n") ;
+ goto out;
+ }
+
+ memset (*a_string, 0, numbytes+1) ;
+ if (_XRead (dpy, *a_string, numbytes)) {
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ EPHYR_LOG_ERROR ("read failed\n") ;
+ goto out ;
+ }
+ length -= numbytes;
+ _XEatData (dpy, length) ;
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ EPHYR_LOG ("strname:%#x, strvalue:'%s', strlen:%d\n",
+ a_string_name, *a_string, numbytes) ;
+
+ is_ok = TRUE ;
+out:
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+static Bool
+ephyrHostGLXGetVisualConfigsInternal (enum VisualConfRequestType a_type,
+ int32_t a_screen,
+ int32_t *a_num_visuals,
+ int32_t *a_num_props,
+ int32_t *a_props_buf_size,
+ int32_t **a_props_buf)
+{
+ Bool is_ok = FALSE ;
+ Display *dpy = hostx_get_display () ;
+ xGLXGetVisualConfigsReq *req;
+ xGLXGetFBConfigsReq *fb_req;
+ xGLXVendorPrivateWithReplyReq *vpreq;
+ xGLXGetFBConfigsSGIXReq *sgi_req;
+ xGLXGetVisualConfigsReply reply;
+ char *server_glx_version=NULL,
+ *server_glx_extensions=NULL ;
+ int j=0,
+ screens=0,
+ major_opcode=0,
+ num_props=0,
+ num_visuals=0,
+ props_buf_size=0,
+ props_per_visual_size=0;
+ int32_t *props_buf=NULL;
+
+ EPHYR_RETURN_VAL_IF_FAIL (dpy, FALSE) ;
+
+ screens = ScreenCount (dpy);
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get opcode\n") ;
+ goto out ;
+ }
+
+ LockDisplay(dpy);
+ switch (a_type) {
+ case EPHYR_GET_FB_CONFIG:
+ GetReq(GLXGetFBConfigs,fb_req);
+ fb_req->reqType = major_opcode;
+ fb_req->glxCode = X_GLXGetFBConfigs;
+ fb_req->screen = DefaultScreen (dpy);
+ break;
+
+ case EPHYR_VENDOR_PRIV_GET_FB_CONFIG_SGIX:
+ GetReqExtra(GLXVendorPrivateWithReply,
+ sz_xGLXGetFBConfigsSGIXReq
+ -
+ sz_xGLXVendorPrivateWithReplyReq,
+ vpreq);
+ sgi_req = (xGLXGetFBConfigsSGIXReq *) vpreq;
+ sgi_req->reqType = major_opcode;
+ sgi_req->glxCode = X_GLXVendorPrivateWithReply;
+ sgi_req->vendorCode = X_GLXvop_GetFBConfigsSGIX;
+ sgi_req->screen = DefaultScreen (dpy);
+ break;
+
+ case EPHYR_GET_VISUAL_CONFIGS:
+ GetReq(GLXGetVisualConfigs,req);
+ req->reqType = major_opcode;
+ req->glxCode = X_GLXGetVisualConfigs;
+ req->screen = DefaultScreen (dpy);
+ break;
+ }
+
+ if (!_XReply(dpy, (xReply*) &reply, 0, False)) {
+ EPHYR_LOG_ERROR ("unknown error\n") ;
+ UnlockDisplay(dpy);
+ goto out ;
+ }
+ if (!reply.numVisuals) {
+ EPHYR_LOG_ERROR ("screen does not support GL rendering\n") ;
+ UnlockDisplay(dpy);
+ goto out ;
+ }
+ num_visuals = reply.numVisuals ;
+
+ /* FIXME: Is the __GLX_MIN_CONFIG_PROPS test correct for
+ * FIXME: FBconfigs?
+ */
+ /* Check number of properties */
+ num_props = reply.numProps;
+ if ((num_props < __GLX_MIN_CONFIG_PROPS) ||
+ (num_props > __GLX_MAX_CONFIG_PROPS)) {
+ /* Huh? Not in protocol defined limits. Punt */
+ EPHYR_LOG_ERROR ("got a bad reply to request\n") ;
+ UnlockDisplay(dpy);
+ goto out ;
+ }
+
+ if (a_type != EPHYR_GET_VISUAL_CONFIGS) {
+ num_props *= 2;
+ }
+ props_per_visual_size = num_props * __GLX_SIZE_INT32;
+ props_buf_size = props_per_visual_size * reply.numVisuals;
+ props_buf = malloc (props_buf_size) ;
+ for (j = 0; j < reply.numVisuals; j++) {
+ if (_XRead (dpy,
+ &((char*)props_buf)[j*props_per_visual_size],
+ props_per_visual_size) != Success) {
+ EPHYR_LOG_ERROR ("read failed\n") ;
+ }
+ }
+ UnlockDisplay(dpy);
+
+ *a_num_visuals = num_visuals ;
+ *a_num_props = reply.numProps ;
+ *a_props_buf_size = props_buf_size ;
+ *a_props_buf = props_buf ;
+ is_ok = TRUE ;
+
+out:
+ if (server_glx_version) {
+ XFree (server_glx_version) ;
+ server_glx_version = NULL ;
+ }
+ if (server_glx_extensions) {
+ XFree (server_glx_extensions) ;
+ server_glx_extensions = NULL ;
+ }
+ SyncHandle () ;
+ return is_ok;
+}
+
+Bool
+ephyrHostGLXGetVisualConfigs (int32_t a_screen,
+ int32_t *a_num_visuals,
+ int32_t *a_num_props,
+ int32_t *a_props_buf_size,
+ int32_t **a_props_buf)
+{
+ Bool is_ok = FALSE;
+
+ EPHYR_LOG ("enter\n") ;
+ is_ok = ephyrHostGLXGetVisualConfigsInternal (EPHYR_GET_VISUAL_CONFIGS,
+ a_screen,
+ a_num_visuals,
+ a_num_props,
+ a_props_buf_size,
+ a_props_buf) ;
+
+ EPHYR_LOG ("leave:%d\n", is_ok) ;
+ return is_ok;
+}
+
+Bool
+ephyrHostGLXVendorPrivGetFBConfigsSGIX (int a_screen,
+ int32_t *a_num_visuals,
+ int32_t *a_num_props,
+ int32_t *a_props_buf_size,
+ int32_t **a_props_buf)
+{
+ Bool is_ok=FALSE ;
+ EPHYR_LOG ("enter\n") ;
+ is_ok = ephyrHostGLXGetVisualConfigsInternal
+ (EPHYR_VENDOR_PRIV_GET_FB_CONFIG_SGIX,
+ a_screen,
+ a_num_visuals,
+ a_num_props,
+ a_props_buf_size,
+ a_props_buf) ;
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+Bool
+ephyrHostGLXSendClientInfo (int32_t a_major, int32_t a_minor,
+ const char* a_extension_list)
+{
+ Bool is_ok = FALSE ;
+ Display *dpy = hostx_get_display () ;
+ xGLXClientInfoReq *req;
+ int size;
+ int32_t major_opcode=0 ;
+
+ EPHYR_RETURN_VAL_IF_FAIL (dpy && a_extension_list, FALSE) ;
+
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+
+ LockDisplay (dpy);
+
+ GetReq (GLXClientInfo,req);
+ req->reqType = major_opcode;
+ req->glxCode = X_GLXClientInfo;
+ req->major = a_major;
+ req->minor = a_minor;
+
+ size = strlen (a_extension_list) + 1;
+ req->length += (size + 3) >> 2;
+ req->numbytes = size;
+ Data (dpy, a_extension_list, size);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ is_ok=TRUE ;
+
+out:
+ return is_ok ;
+}
+
+Bool
+ephyrHostGLXCreateContext (int a_screen,
+ int a_visual_id,
+ int a_context_id,
+ int a_share_list_ctxt_id,
+ Bool a_direct)
+{
+ Bool is_ok = FALSE;
+ Display *dpy = hostx_get_display ();
+ int major_opcode=0, remote_context_id=0;
+ xGLXCreateContextReq *req;
+
+ EPHYR_LOG ("enter. screen:%d, visual:%d, contextid:%d, direct:%d\n",
+ a_screen, a_visual_id, a_context_id, a_direct) ;
+
+ if (!hostx_allocate_resource_id_peer (a_context_id, &remote_context_id)) {
+ EPHYR_LOG_ERROR ("failed to peer the context id %d host X",
+ remote_context_id) ;
+ goto out ;
+ }
+
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+
+ LockDisplay (dpy) ;
+
+ /* Send the glXCreateContext request */
+ GetReq(GLXCreateContext,req);
+ req->reqType = major_opcode;
+ req->glxCode = X_GLXCreateContext;
+ req->context = remote_context_id;
+ req->visual = a_visual_id;
+ req->screen = DefaultScreen (dpy);
+ req->shareList = a_share_list_ctxt_id;
+ req->isDirect = a_direct;
+
+ UnlockDisplay (dpy);
+ SyncHandle ();
+
+ is_ok = TRUE ;
+
+out:
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+Bool
+ephyrHostDestroyContext (int a_ctxt_id)
+{
+ Bool is_ok=FALSE;
+ Display *dpy=hostx_get_display ();
+ int major_opcode=0, remote_ctxt_id=0 ;
+ xGLXDestroyContextReq *req=NULL;
+
+ EPHYR_LOG ("enter:%d\n", a_ctxt_id) ;
+
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+ if (!hostx_get_resource_id_peer (a_ctxt_id, &remote_ctxt_id)) {
+ EPHYR_LOG_ERROR ("failed to get remote glx ctxt id\n") ;
+ goto out ;
+ }
+ EPHYR_LOG ("host context id:%d\n", remote_ctxt_id) ;
+
+ LockDisplay (dpy);
+ GetReq (GLXDestroyContext,req);
+ req->reqType = major_opcode;
+ req->glxCode = X_GLXDestroyContext;
+ req->context = remote_ctxt_id;
+ UnlockDisplay (dpy);
+ SyncHandle ();
+
+ is_ok = TRUE ;
+
+out:
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+Bool
+ephyrHostGLXMakeCurrent (int a_drawable,
+ int a_glx_ctxt_id,
+ int a_old_ctxt_tag,
+ int *a_ctxt_tag)
+{
+ Bool is_ok=FALSE ;
+ Display *dpy = hostx_get_display () ;
+ int32_t major_opcode=0 ;
+ int remote_glx_ctxt_id=0 ;
+ xGLXMakeCurrentReq *req;
+ xGLXMakeCurrentReply reply;
+
+ EPHYR_RETURN_VAL_IF_FAIL (a_ctxt_tag, FALSE) ;
+
+ EPHYR_LOG ("enter. drawable:%d, context:%d, oldtag:%d\n",
+ a_drawable, a_glx_ctxt_id, a_old_ctxt_tag) ;
+
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+ if (!hostx_get_resource_id_peer (a_glx_ctxt_id, &remote_glx_ctxt_id)) {
+ EPHYR_LOG_ERROR ("failed to get remote glx ctxt id\n") ;
+ goto out ;
+ }
+
+ LockDisplay (dpy);
+
+ GetReq (GLXMakeCurrent,req);
+ req->reqType = major_opcode;
+ req->glxCode = X_GLXMakeCurrent;
+ req->drawable = a_drawable;
+ req->context = remote_glx_ctxt_id;
+ req->oldContextTag = a_old_ctxt_tag;
+
+ memset (&reply, 0, sizeof (reply)) ;
+ if (!_XReply (dpy, (xReply*)&reply, 0, False)) {
+ EPHYR_LOG_ERROR ("failed to get reply from host\n") ;
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ goto out ;
+ }
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ *a_ctxt_tag = reply.contextTag ;
+ EPHYR_LOG ("context tag:%d\n", *a_ctxt_tag) ;
+ is_ok = TRUE ;
+
+out:
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+#define X_GLXSingle 0
+
+#define __EPHYR_GLX_SINGLE_PUT_CHAR(offset,a) \
+ *((INT8 *) (pc + offset)) = a
+
+#define EPHYR_GLX_SINGLE_PUT_SHORT(offset,a) \
+ *((INT16 *) (pc + offset)) = a
+
+#define EPHYR_GLX_SINGLE_PUT_LONG(offset,a) \
+ *((INT32 *) (pc + offset)) = a
+
+#define EPHYR_GLX_SINGLE_PUT_FLOAT(offset,a) \
+ *((FLOAT32 *) (pc + offset)) = a
+
+#define EPHYR_GLX_SINGLE_READ_XREPLY() \
+ (void) _XReply(dpy, (xReply*) &reply, 0, False)
+
+#define EPHYR_GLX_SINGLE_GET_RETVAL(a,cast) \
+ a = (cast) reply.retval
+
+#define EPHYR_GLX_SINGLE_GET_SIZE(a) \
+ a = (GLint) reply.size
+
+#define EPHYR_GLX_SINGLE_GET_CHAR(p) \
+ *p = *(GLbyte *)&reply.pad3;
+
+#define EPHYR_GLX_SINGLE_GET_SHORT(p) \
+ *p = *(GLshort *)&reply.pad3;
+
+#define EPHYR_GLX_SINGLE_GET_LONG(p) \
+ *p = *(GLint *)&reply.pad3;
+
+#define EPHYR_GLX_SINGLE_GET_FLOAT(p) \
+ *p = *(GLfloat *)&reply.pad3;
+
+Bool
+ephyrHostGetIntegerValue (int a_current_context_tag, int a_int, int *a_val)
+{
+ Bool is_ok=FALSE;
+ Display *dpy = hostx_get_display () ;
+ int major_opcode=0, size=0;
+ xGLXSingleReq *req=NULL;
+ xGLXSingleReply reply;
+ unsigned char* pc=NULL ;
+
+ EPHYR_RETURN_VAL_IF_FAIL (a_val, FALSE) ;
+
+ EPHYR_LOG ("enter\n") ;
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+ LockDisplay (dpy) ;
+ GetReqExtra (GLXSingle, 4, req) ;
+ req->reqType = major_opcode ;
+ req->glxCode = X_GLsop_GetIntegerv ;
+ req->contextTag = a_current_context_tag;
+ pc = ((unsigned char *)(req) + sz_xGLXSingleReq) ;
+ EPHYR_GLX_SINGLE_PUT_LONG (0, a_int) ;
+ EPHYR_GLX_SINGLE_READ_XREPLY () ;
+ EPHYR_GLX_SINGLE_GET_SIZE (size) ;
+ if (!size) {
+ UnlockDisplay (dpy) ;
+ SyncHandle () ;
+ EPHYR_LOG_ERROR ("X_GLsop_GetIngerv failed\n") ;
+ goto out ;
+ }
+ EPHYR_GLX_SINGLE_GET_LONG (a_val) ;
+ UnlockDisplay (dpy) ;
+ SyncHandle () ;
+ is_ok = TRUE ;
+
+out:
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+Bool
+ephyrHostIsContextDirect (int a_ctxt_id,
+ int *a_is_direct)
+{
+ Bool is_ok=FALSE;
+ Display *dpy = hostx_get_display () ;
+ xGLXIsDirectReq *req=NULL;
+ xGLXIsDirectReply reply;
+ int major_opcode=0, remote_glx_ctxt_id=0;
+
+ EPHYR_LOG ("enter\n") ;
+ if (!ephyrHostGLXGetMajorOpcode (&major_opcode)) {
+ EPHYR_LOG_ERROR ("failed to get major opcode\n") ;
+ goto out ;
+ }
+ if (!hostx_get_resource_id_peer (a_ctxt_id, &remote_glx_ctxt_id)) {
+ EPHYR_LOG_ERROR ("failed to get remote glx ctxt id\n") ;
+ goto out ;
+ }
+ memset (&reply, 0, sizeof (reply)) ;
+
+ /* Send the glXIsDirect request */
+ LockDisplay (dpy);
+ GetReq (GLXIsDirect,req);
+ req->reqType = major_opcode;
+ req->glxCode = X_GLXIsDirect;
+ req->context = remote_glx_ctxt_id;
+ if (!_XReply (dpy, (xReply*) &reply, 0, False)) {
+ EPHYR_LOG_ERROR ("fail in reading reply from host\n") ;
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ goto out ;
+ }
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ *a_is_direct = reply.isDirect ;
+ is_ok = TRUE ;
+
+out:
+ EPHYR_LOG ("leave\n") ;
+ return is_ok ;
+}
+
+#endif /*XEPHYR_DRI*/
+