Merge branch 'xa_branch'

[mesa.git] / src / egl / main / eglcontext.h

diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h
index 148f160cae0603238d163bf731bbeacb2f14e773..0ac846219a7b2e41a1fc9b1c2e092baaa3dca610 100644 (file)
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -1,3 +1,33 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
+ * Copyright 2010-2011 LunarG, Inc.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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.
+ *
+ **************************************************************************/
+
+
 #ifndef EGLCONTEXT_INCLUDED
 #define EGLCONTEXT_INCLUDED
 
@@ -39,30 +69,41 @@ _eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint att
 
 
 PUBLIC EGLBoolean
-_eglBindContext(_EGLContext **ctx, _EGLSurface **draw, _EGLSurface **read);
+_eglBindContext(_EGLContext *ctx, _EGLSurface *draw, _EGLSurface *read,
+                _EGLContext **old_ctx,
+                _EGLSurface **old_draw, _EGLSurface **old_read);
 
 
 /**
- * Return true if the context is bound to a thread.
- *
- * The binding is considered a reference to the context.  Drivers should not
- * destroy a context when it is bound.
+ * Increment reference count for the context.
+ */
+static INLINE _EGLContext *
+_eglGetContext(_EGLContext *ctx)
+{
+   if (ctx)
+      _eglGetResource(&ctx->Resource);
+   return ctx;
+}
+
+
+/**
+ * Decrement reference count for the context.
  */
 static INLINE EGLBoolean
-_eglIsContextBound(_EGLContext *ctx)
+_eglPutContext(_EGLContext *ctx)
 {
-   return (ctx->Binding != NULL);
+   return (ctx) ? _eglPutResource(&ctx->Resource) : EGL_FALSE;
 }
 
 
 /**
- * Link a context to a display and return the handle of the link.
+ * Link a context to its display and return the handle of the link.
  * The handle can be passed to client directly.
  */
 static INLINE EGLContext
-_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy)
+_eglLinkContext(_EGLContext *ctx)
 {
-   _eglLinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT, dpy);
+   _eglLinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT);
    return (EGLContext) ctx;
 }
 
@@ -104,18 +145,4 @@ _eglGetContextHandle(_EGLContext *ctx)
 }
 
 
-/**
- * Return true if the context is linked to a display.
- *
- * The link is considered a reference to the context (the display is owning the
- * context).  Drivers should not destroy a context when it is linked.
- */
-static INLINE EGLBoolean
-_eglIsContextLinked(_EGLContext *ctx)
-{
-   _EGLResource *res = (_EGLResource *) ctx;
-   return (res && _eglIsResourceLinked(res));
-}
-
-
 #endif /* EGLCONTEXT_INCLUDED */