vbox的更動 51559 路徑 trunk/src/VBox/GuestHost/OpenGL/state_tracker

時間撮記:

2014-6-5 下午09:18:41 (10 年 以前)

作者:

vboxsync

訊息:

crOpenGL: wglShareLists support

檔案:

• trunk/src/VBox/GuestHost/OpenGL/state_tracker/state_init.c (修改) (6 筆差異)

trunk/src/VBox/GuestHost/OpenGL/state_tracker/state_init.c

@@ -9 +9 @@
 #include "cr_error.h"
 #include "cr_spu.h"
+
+#include <iprt/asm.h>
 
 #ifdef CHROMIUM_THREADSAFE
@@ -110 +112 @@
 crStateFreeShared(CRContext *pContext, CRSharedState *s)
 {
-    s->refCount--;
-    Assert(s->refCount >= 0);
-    if (s->refCount <= 0) {
+    int32_t refCount = ASMAtomicDecS32(&s->refCount);
+
+    Assert(refCount >= 0);
+    if (refCount <= 0) {
         if (s==gSharedState)
         {
@@ -144 +147 @@
         return NULL;
     }
-    gSharedState->refCount++;
+    ASMAtomicIncS32(&gSharedState->refCount);
     return gSharedState;
 }
@@ -176 +179 @@
             crStateFreeShared(pCtx, pCtx->shared);
             pCtx->shared = gSharedState;
-            gSharedState->refCount++;
+            ASMAtomicIncS32(&gSharedState->refCount);
         }
     }
@@ -199 +202 @@
         }
     }
+}
+
+DECLEXPORT(void) STATE_APIENTRY
+crStateShareLists(CRContext *pContext1, CRContext *pContext2)
+{
+    CRASSERT(pContext1->shared);
+    CRASSERT(pContext2->shared);
+
+    if (pContext2->shared == pContext1->shared)
+    {
+        return;
+    }
+
+    crStateFreeShared(pContext1, pContext1->shared);
+    pContext1->shared = pContext2->shared;
+    ASMAtomicIncS32(&pContext2->shared->refCount);
 }
 
@@ -271 +290 @@
         CRASSERT(shareCtx->shared);
         ctx->shared = shareCtx->shared;
-        ctx->shared->refCount ++;
+        ASMAtomicIncS32(&ctx->shared->refCount);
     }
     else {