Merge commit 'refs/merge-requests/194/head' of gitlab.freedesktop.org:xorg/xserver

glx/vndcmds.c

@@ -468,15 +468,24 @@ void GlxDispatchReset(void)
 int GlxDispatchRequest(ClientPtr client)
 {
     REQUEST(xReq);
+    int result;
+
     if (GlxExtensionEntry->base == 0)
         return BadRequest;
+
+    GlxSetRequestClient(client);
+
     if (stuff->data < OPCODE_ARRAY_LEN) {
         if (dispatchFuncs[stuff->data] == NULL) {
             // Try to find a dispatch stub.
             dispatchFuncs[stuff->data] = GetVendorDispatchFunc(stuff->data, 0);
         }
-        return dispatchFuncs[stuff->data](client);
+        result = dispatchFuncs[stuff->data](client);
     } else {
-        return dispatch_GLXSingle(client);
+        result = dispatch_GLXSingle(client);
     }
+
+    GlxSetRequestClient(NULL);
+
+    return result;
 }

glx/vndext.c

@@ -139,8 +139,17 @@ GlxGetClientData(ClientPtr client)
 {
     GlxClientPriv *cl = xglvGetClientPrivate(client);
     if (cl == NULL) {
-        cl = calloc(1, sizeof(GlxClientPriv));
+        cl = calloc(1, sizeof(GlxClientPriv)
+                + screenInfo.numScreens * sizeof(GlxServerVendor *));
         if (cl != NULL) {
+            int i;
+
+            cl->vendors = (GlxServerVendor **) (cl + 1);
+            for (i=0; i<screenInfo.numScreens; i++)
+            {
+                cl->vendors[i] = GlxGetVendorForScreen(NULL, screenInfo.screens[i]);
+            }
+
             xglvSetClientPrivate(client, cl);
         }
     }
@@ -315,6 +324,7 @@ _X_EXPORT const GlxServerExports glxServer = {
     .getContextTagPrivate = GlxGetContextTagPrivate,
     .getVendorForScreen = GlxGetVendorForScreen,
     .forwardRequest =  GlxForwardRequest,
+    .setClientScreenVendor = GlxSetClientScreenVendor,
 };
 
 const GlxServerExports *

glx/vndserver.h

@@ -57,6 +57,11 @@ typedef struct GlxContextTagInfoRec {
 typedef struct GlxClientPrivRec {
     GlxContextTagInfo *contextTags;
     unsigned int contextTagCount;
+
+    /**
+     * The vendor handles for each screen.
+     */
+    GlxServerVendor **vendors;
 } GlxClientPriv;
 
 extern int GlxErrorBase;
@@ -90,11 +95,19 @@ Bool GlxAddXIDMap(XID id, GlxServerVendor *vendor);
 GlxServerVendor * GlxGetXIDMap(XID id);
 void GlxRemoveXIDMap(XID id);
 
+/**
+ * Records the client that sent the current request. This is needed in
+ * GlxGetXIDMap to know which client's (screen -> vendor) mapping to use for a
+ * regular X window.
+ */
+void GlxSetRequestClient(ClientPtr client);
+
 GlxContextTagInfo *GlxAllocContextTag(ClientPtr client, GlxServerVendor *vendor);
 GlxContextTagInfo *GlxLookupContextTag(ClientPtr client, GLXContextTag tag);
 void GlxFreeContextTag(GlxContextTagInfo *tagInfo);
 
 Bool GlxSetScreenVendor(ScreenPtr screen, GlxServerVendor *vendor);
+Bool GlxSetClientScreenVendor(ClientPtr client, ScreenPtr screen, GlxServerVendor *vendor);
 GlxScreenPriv *GlxGetScreen(ScreenPtr pScreen);
 GlxServerVendor *GlxGetVendorForScreen(ClientPtr client, ScreenPtr screen);
 

glx/vndservermapping.c

@@ -33,6 +33,13 @@
 
 #include "vndservervendor.h"
 
+static ClientPtr requestClient = NULL;
+
+void GlxSetRequestClient(ClientPtr client)
+{
+    requestClient = client;
+}
+
 static GlxServerVendor *LookupXIDMapResource(XID id)
 {
     void *ptr = NULL;
@@ -59,10 +66,7 @@ GlxServerVendor *GlxGetXIDMap(XID id)
                                          DixGetAttrAccess);
         if (rv == Success && ptr != NULL) {
             DrawablePtr draw = (DrawablePtr) ptr;
-            GlxScreenPriv *screenPriv = GlxGetScreen(draw->pScreen);
-            if (screenPriv != NULL) {
-                vendor = screenPriv->vendor;
-            }
+            vendor = GlxGetVendorForScreen(requestClient, draw->pScreen);
         }
     }
     return vendor;
@@ -185,12 +189,44 @@ Bool GlxSetScreenVendor(ScreenPtr screen, GlxServerVendor *vendor)
     return TRUE;
 }
 
+Bool GlxSetClientScreenVendor(ClientPtr client, ScreenPtr screen, GlxServerVendor *vendor)
+{
+    GlxClientPriv *cl;
+
+    if (screen == NULL || screen->isGPU) {
+        return FALSE;
+    }
+
+    cl = GlxGetClientData(client);
+    if (cl == NULL) {
+        return FALSE;
+    }
+
+    if (vendor != NULL) {
+        cl->vendors[screen->myNum] = vendor;
+    } else {
+        cl->vendors[screen->myNum] = GlxGetVendorForScreen(NULL, screen);
+    }
+    return TRUE;
+}
+
 GlxServerVendor *GlxGetVendorForScreen(ClientPtr client, ScreenPtr screen)
 {
-    GlxScreenPriv *priv = GlxGetScreen(screen);
-    if (priv != NULL) {
-        return priv->vendor;
+    // Note that the client won't be sending GPU screen numbers, so we don't
+    // need per-client mappings for them.
+    if (client != NULL && !screen->isGPU) {
+        GlxClientPriv *cl = GlxGetClientData(client);
+        if (cl != NULL) {
+            return cl->vendors[screen->myNum];
+        } else {
+            return NULL;
+        }
     } else {
-        return NULL;
+        GlxScreenPriv *priv = GlxGetScreen(screen);
+        if (priv != NULL) {
+            return priv->vendor;
+        } else {
+            return NULL;
+        }
     }
 }

include/glxvndabi.h

@@ -75,7 +75,7 @@
  * will still work.
  */
 #define GLXSERVER_VENDOR_ABI_MAJOR_VERSION 0
-#define GLXSERVER_VENDOR_ABI_MINOR_VERSION 0
+#define GLXSERVER_VENDOR_ABI_MINOR_VERSION 1
 
 #if defined(__cplusplus)
 extern "C" {
@@ -236,6 +236,17 @@ typedef struct GlxServerExportsRec {
      * \param client The client.
      */
     int (* forwardRequest) (GlxServerVendor *vendor, ClientPtr client);
+
+    /**
+     * Sets the vendor library to use for a screen for a specific client.
+     *
+     * This function changes which vendor should handle GLX requests for a
+     * screen. Unlike \c setScreenVendor, this function can be called at any
+     * time, and only applies to requests from a single client.
+     *
+     * This function is available in GLXVND version 0.1 or later.
+     */
+    Bool (* setClientScreenVendor) (ClientPtr client, ScreenPtr screen, GlxServerVendor *vendor);
 } GlxServerExports;
 
 extern _X_EXPORT const GlxServerExports glxServer;