--- /dev/null
+/*
+ * Copyright (c) 2008 NVIDIA, Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#define _GNU_SOURCE 1
+#include <string.h>
+
+#define NEED_REPLIES
+#include <stdlib.h>
+#include <X11/Xlibint.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.h>
+#include "va_nvctrl.h"
+
+#define NV_CONTROL_ERRORS 0
+#define NV_CONTROL_EVENTS 5
+#define NV_CONTROL_NAME "NV-CONTROL"
+
+#define NV_CTRL_TARGET_TYPE_X_SCREEN 0
+#define NV_CTRL_TARGET_TYPE_GPU 1
+#define NV_CTRL_TARGET_TYPE_FRAMELOCK 2
+#define NV_CTRL_TARGET_TYPE_VCSC 3 /* Visual Computing System */
+
+#define NV_CTRL_STRING_NVIDIA_DRIVER_VERSION 3 /* R--G */
+
+#define X_nvCtrlQueryExtension 0
+#define X_nvCtrlIsNv 1
+#define X_nvCtrlQueryStringAttribute 4
+
+typedef struct {
+ CARD8 reqType;
+ CARD8 nvReqType;
+ CARD16 length B16;
+} xnvCtrlQueryExtensionReq;
+#define sz_xnvCtrlQueryExtensionReq 4
+
+typedef struct {
+ BYTE type; /* X_Reply */
+ CARD8 padb1;
+ CARD16 sequenceNumber B16;
+ CARD32 length B32;
+ CARD16 major B16;
+ CARD16 minor B16;
+ CARD32 padl4 B32;
+ CARD32 padl5 B32;
+ CARD32 padl6 B32;
+ CARD32 padl7 B32;
+ CARD32 padl8 B32;
+} xnvCtrlQueryExtensionReply;
+#define sz_xnvCtrlQueryExtensionReply 32
+
+typedef struct {
+ CARD8 reqType;
+ CARD8 nvReqType;
+ CARD16 length B16;
+ CARD32 screen B32;
+} xnvCtrlIsNvReq;
+#define sz_xnvCtrlIsNvReq 8
+
+typedef struct {
+ BYTE type; /* X_Reply */
+ CARD8 padb1;
+ CARD16 sequenceNumber B16;
+ CARD32 length B32;
+ CARD32 isnv B32;
+ CARD32 padl4 B32;
+ CARD32 padl5 B32;
+ CARD32 padl6 B32;
+ CARD32 padl7 B32;
+ CARD32 padl8 B32;
+} xnvCtrlIsNvReply;
+#define sz_xnvCtrlIsNvReply 32
+
+typedef struct {
+ CARD8 reqType;
+ CARD8 nvReqType;
+ CARD16 length B16;
+ CARD16 target_id B16; /* X screen number or GPU number */
+ CARD16 target_type B16; /* X screen or GPU */
+ CARD32 display_mask B32;
+ CARD32 attribute B32;
+} xnvCtrlQueryStringAttributeReq;
+#define sz_xnvCtrlQueryStringAttributeReq 16
+
+typedef struct {
+ BYTE type;
+ BYTE pad0;
+ CARD16 sequenceNumber B16;
+ CARD32 length B32;
+ CARD32 flags B32;
+ CARD32 n B32; /* Length of string */
+ CARD32 pad4 B32;
+ CARD32 pad5 B32;
+ CARD32 pad6 B32;
+ CARD32 pad7 B32;
+} xnvCtrlQueryStringAttributeReply;
+#define sz_xnvCtrlQueryStringAttributeReply 32
+
+#define NVCTRL_EXT_NEED_CHECK (XPointer)(~0)
+#define NVCTRL_EXT_NEED_NOTHING (XPointer)(0)
+#define NVCTRL_EXT_NEED_TARGET_SWAP (XPointer)(1)
+
+static XExtensionInfo _nvctrl_ext_info_data;
+static XExtensionInfo *nvctrl_ext_info = &_nvctrl_ext_info_data;
+static /* const */ char *nvctrl_extension_name = NV_CONTROL_NAME;
+
+#define XNVCTRLCheckExtension(dpy,i,val) \
+ XextCheckExtension (dpy, i, nvctrl_extension_name, val)
+#define XNVCTRLSimpleCheckExtension(dpy,i) \
+ XextSimpleCheckExtension (dpy, i, nvctrl_extension_name)
+
+static int close_display();
+static /* const */ XExtensionHooks nvctrl_extension_hooks = {
+ NULL, /* create_gc */
+ NULL, /* copy_gc */
+ NULL, /* flush_gc */
+ NULL, /* free_gc */
+ NULL, /* create_font */
+ NULL, /* free_font */
+ close_display, /* close_display */
+ NULL, /* wire_to_event */
+ NULL, /* event_to_wire */
+ NULL, /* error */
+ NULL, /* error_string */
+};
+
+static XEXT_GENERATE_FIND_DISPLAY (find_display, nvctrl_ext_info,
+ nvctrl_extension_name,
+ &nvctrl_extension_hooks,
+ NV_CONTROL_EVENTS, NVCTRL_EXT_NEED_CHECK)
+
+static XEXT_GENERATE_CLOSE_DISPLAY (close_display, nvctrl_ext_info)
+
+static Bool XNVCTRLQueryVersion (Display *dpy, int *major, int *minor);
+
+/*
+ * NV-CONTROL versions 1.8 and 1.9 pack the target_type and target_id
+ * fields in reversed order. In order to talk to one of these servers,
+ * we need to swap these fields.
+ */
+static void XNVCTRLCheckTargetData(Display *dpy, XExtDisplayInfo *info,
+ int *target_type, int *target_id)
+{
+ /* Find out what the server's NV-CONTROL version is and
+ * setup for swapping if we need to.
+ */
+ if (info->data == NVCTRL_EXT_NEED_CHECK) {
+ int major, minor;
+
+ if (XNVCTRLQueryVersion(dpy, &major, &minor)) {
+ if (major == 1 &&
+ (minor == 8 || minor == 9)) {
+ info->data = NVCTRL_EXT_NEED_TARGET_SWAP;
+ } else {
+ info->data = NVCTRL_EXT_NEED_NOTHING;
+ }
+ } else {
+ info->data = NVCTRL_EXT_NEED_NOTHING;
+ }
+ }
+
+ /* We need to swap the target_type and target_id */
+ if (info->data == NVCTRL_EXT_NEED_TARGET_SWAP) {
+ int tmp;
+ tmp = *target_type;
+ *target_type = *target_id;
+ *target_id = tmp;
+ }
+}
+
+
+static Bool XNVCTRLQueryExtension (
+ Display *dpy,
+ int *event_basep,
+ int *error_basep
+){
+ XExtDisplayInfo *info = find_display (dpy);
+
+ if (XextHasExtension(info)) {
+ if (event_basep) *event_basep = info->codes->first_event;
+ if (error_basep) *error_basep = info->codes->first_error;
+ return True;
+ } else {
+ return False;
+ }
+}
+
+
+static Bool XNVCTRLQueryVersion (
+ Display *dpy,
+ int *major,
+ int *minor
+){
+ XExtDisplayInfo *info = find_display (dpy);
+ xnvCtrlQueryExtensionReply rep;
+ xnvCtrlQueryExtensionReq *req;
+
+ if(!XextHasExtension(info))
+ return False;
+
+ XNVCTRLCheckExtension (dpy, info, False);
+
+ LockDisplay (dpy);
+ GetReq (nvCtrlQueryExtension, req);
+ req->reqType = info->codes->major_opcode;
+ req->nvReqType = X_nvCtrlQueryExtension;
+ if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ return False;
+ }
+ if (major) *major = rep.major;
+ if (minor) *minor = rep.minor;
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ return True;
+}
+
+
+static Bool XNVCTRLIsNvScreen (
+ Display *dpy,
+ int screen
+){
+ XExtDisplayInfo *info = find_display (dpy);
+ xnvCtrlIsNvReply rep;
+ xnvCtrlIsNvReq *req;
+ Bool isnv;
+
+ if(!XextHasExtension(info))
+ return False;
+
+ XNVCTRLCheckExtension (dpy, info, False);
+
+ LockDisplay (dpy);
+ GetReq (nvCtrlIsNv, req);
+ req->reqType = info->codes->major_opcode;
+ req->nvReqType = X_nvCtrlIsNv;
+ req->screen = screen;
+ if (!_XReply (dpy, (xReply *) &rep, 0, xTrue)) {
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ return False;
+ }
+ isnv = rep.isnv;
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ return isnv;
+}
+
+
+static Bool XNVCTRLQueryTargetStringAttribute (
+ Display *dpy,
+ int target_type,
+ int target_id,
+ unsigned int display_mask,
+ unsigned int attribute,
+ char **ptr
+){
+ XExtDisplayInfo *info = find_display (dpy);
+ xnvCtrlQueryStringAttributeReply rep;
+ xnvCtrlQueryStringAttributeReq *req;
+ Bool exists;
+ int length, numbytes, slop;
+
+ if (!ptr) return False;
+
+ if(!XextHasExtension(info))
+ return False;
+
+ XNVCTRLCheckExtension (dpy, info, False);
+ XNVCTRLCheckTargetData(dpy, info, &target_type, &target_id);
+
+ LockDisplay (dpy);
+ GetReq (nvCtrlQueryStringAttribute, req);
+ req->reqType = info->codes->major_opcode;
+ req->nvReqType = X_nvCtrlQueryStringAttribute;
+ req->target_type = target_type;
+ req->target_id = target_id;
+ req->display_mask = display_mask;
+ req->attribute = attribute;
+ if (!_XReply (dpy, (xReply *) &rep, 0, False)) {
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ return False;
+ }
+ length = rep.length;
+ numbytes = rep.n;
+ slop = numbytes & 3;
+ *ptr = (char *) Xmalloc(numbytes);
+ if (! *ptr) {
+ _XEatData(dpy, length);
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ return False;
+ } else {
+ _XRead(dpy, (char *) *ptr, numbytes);
+ if (slop) _XEatData(dpy, 4-slop);
+ }
+ exists = rep.flags;
+ UnlockDisplay (dpy);
+ SyncHandle ();
+ return exists;
+}
+
+static Bool XNVCTRLQueryStringAttribute (
+ Display *dpy,
+ int screen,
+ unsigned int display_mask,
+ unsigned int attribute,
+ char **ptr
+){
+ return XNVCTRLQueryTargetStringAttribute(dpy, NV_CTRL_TARGET_TYPE_X_SCREEN,
+ screen, display_mask,
+ attribute, ptr);
+}
+
+
+Bool VA_NVCTRLQueryDirectRenderingCapable( Display *dpy, int screen,
+ Bool *isCapable )
+{
+ int event_base;
+ int error_base;
+
+ if (isCapable)
+ *isCapable = False;
+
+ if (!XNVCTRLQueryExtension(dpy, &event_base, &error_base))
+ return False;
+
+ if (isCapable && XNVCTRLIsNvScreen(dpy, screen))
+ *isCapable = True;
+
+ return True;
+}
+
+Bool VA_NVCTRLGetClientDriverName( Display *dpy, int screen,
+ int *ddxDriverMajorVersion, int *ddxDriverMinorVersion,
+ int *ddxDriverPatchVersion, char **clientDriverName )
+{
+ if (ddxDriverMajorVersion)
+ *ddxDriverMajorVersion = 0;
+ if (ddxDriverMinorVersion)
+ *ddxDriverMinorVersion = 0;
+ if (ddxDriverPatchVersion)
+ *ddxDriverPatchVersion = 0;
+ if (clientDriverName)
+ *clientDriverName = NULL;
+
+ char *nvidia_driver_version = NULL;
+ if (!XNVCTRLQueryStringAttribute(dpy, screen, 0, NV_CTRL_STRING_NVIDIA_DRIVER_VERSION, &nvidia_driver_version))
+ return False;
+
+ char *end, *str = nvidia_driver_version;
+ unsigned long v = strtoul(str, &end, 10);
+ if (end && end != str) {
+ if (ddxDriverMajorVersion)
+ *ddxDriverMajorVersion = v;
+ if (*(str = end) == '.') {
+ v = strtoul(str + 1, &end, 10);
+ if (end && end != str && *end == '\0') {
+ if (ddxDriverMinorVersion)
+ *ddxDriverMinorVersion = v;
+ }
+ }
+ }
+ Xfree(nvidia_driver_version);
+
+ if (clientDriverName)
+ *clientDriverName = strdup("nvidia");
+
+ return True;
+}
OSDN Git Service
