X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fegl%2Fmain%2Feglcontext.h;h=241917f3bead6df77675da829bb62d6c9448a3da;hb=a8617cc0428dcc8340cb85776e122c6534a0fa11;hp=cb9e3f4a892584efc419981c188e71f0928f55ce;hpb=897cb8950ae14ffe7029b1daf16113ff62ce0dfe;p=mesa.git

diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h
index cb9e3f4a892..241917f3bea 100644
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -1,9 +1,40 @@
+/**************************************************************************
+ *
+ * Copyright 2008 VMware, Inc.
+ * 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
 
+#include "c99_compat.h"
 
 #include "egltypedefs.h"
+#include "egldisplay.h"
 
 
 /**
@@ -11,9 +42,8 @@
  */
 struct _egl_context
 {
-   /* Managed by EGLDisplay for linking */
-   _EGLDisplay *Display;
-   _EGLContext *Next;
+   /* A context is a display resource */
+   _EGLResource Resource;
 
    /* The bound status of the context */
    _EGLThreadInfo *Binding;
@@ -23,45 +53,100 @@ struct _egl_context
    _EGLConfig *Config;
 
    EGLint ClientAPI; /**< EGL_OPENGL_ES_API, EGL_OPENGL_API, EGL_OPENVG_API */
-   EGLint ClientVersion; /**< 1 = OpenGLES 1.x, 2 = OpenGLES 2.x */
+   EGLint ClientMajorVersion;
+   EGLint ClientMinorVersion;
+   EGLint Flags;
+   EGLint Profile;
+   EGLint ResetNotificationStrategy;
 
    /* The real render buffer when a window surface is bound */
    EGLint WindowRenderBuffer;
 };
 
 
-PUBLIC EGLBoolean
-_eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
+extern EGLBoolean
+_eglInitContext(_EGLContext *ctx, _EGLDisplay *dpy,
                 _EGLConfig *config, const EGLint *attrib_list);
 
 
-extern _EGLContext *
-_eglCreateContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, _EGLContext *share_list, const EGLint *attrib_list);
+extern EGLBoolean
+_eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value);
 
 
 extern EGLBoolean
-_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx);
+_eglBindContext(_EGLContext *ctx, _EGLSurface *draw, _EGLSurface *read,
+                _EGLContext **old_ctx,
+                _EGLSurface **old_draw, _EGLSurface **old_read);
 
 
-extern EGLBoolean
-_eglQueryContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx, EGLint attribute, EGLint *value);
+/**
+ * Increment reference count for the context.
+ */
+static inline _EGLContext *
+_eglGetContext(_EGLContext *ctx)
+{
+   if (ctx)
+      _eglGetResource(&ctx->Resource);
+   return ctx;
+}
 
 
-PUBLIC EGLBoolean
-_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx);
+/**
+ * Decrement reference count for the context.
+ */
+static inline EGLBoolean
+_eglPutContext(_EGLContext *ctx)
+{
+   return (ctx) ? _eglPutResource(&ctx->Resource) : EGL_FALSE;
+}
 
 
-extern EGLBoolean
-_eglCopyContextMESA(_EGLDriver *drv, EGLDisplay dpy, EGLContext source, EGLContext dest, EGLint mask);
+/**
+ * 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)
+{
+   _eglLinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT);
+   return (EGLContext) ctx;
+}
+
+
+/**
+ * Unlink a linked context from its display.
+ * Accessing an unlinked context should generate EGL_BAD_CONTEXT error.
+ */
+static inline void
+_eglUnlinkContext(_EGLContext *ctx)
+{
+   _eglUnlinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT);
+}
+
+
+/**
+ * Lookup a handle to find the linked context.
+ * Return NULL if the handle has no corresponding linked context.
+ */
+static inline _EGLContext *
+_eglLookupContext(EGLContext context, _EGLDisplay *dpy)
+{
+   _EGLContext *ctx = (_EGLContext *) context;
+   if (!dpy || !_eglCheckResource((void *) ctx, _EGL_RESOURCE_CONTEXT, dpy))
+      ctx = NULL;
+   return ctx;
+}
 
 
 /**
- * Return true if the context is bound to a thread.
+ * Return the handle of a linked context, or EGL_NO_CONTEXT.
  */
-static INLINE EGLBoolean
-_eglIsContextBound(_EGLContext *ctx)
+static inline EGLContext
+_eglGetContextHandle(_EGLContext *ctx)
 {
-   return (ctx->Binding != NULL);
+   _EGLResource *res = (_EGLResource *) ctx;
+   return (res && _eglIsResourceLinked(res)) ?
+      (EGLContext) ctx : EGL_NO_CONTEXT;
 }