X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fegl%2Fmain%2Feglcontext.h;h=2c6ebd19cb9c2eb6bcfdc48e81d9e7c1cbb7c387;hb=7d5a13ebf31edab412a06c075b847fc9f0137da1;hp=45c7b4717b7ab3bccc84e77337bee943ce5c2495;hpb=898de4a9d5e47ed32c600e5907476fd9338aa7e9;p=mesa.git

diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h
index 45c7b4717b7..2c6ebd19cb9 100644
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -1,19 +1,53 @@
+/**************************************************************************
+ *
+ * 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"
+
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /**
  * "Base" class for device driver contexts.
  */
 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;
@@ -23,46 +57,108 @@ 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 */
-
-   /* The real render buffer when a window surface is bound */
-   EGLint WindowRenderBuffer;
+   EGLint ClientMajorVersion;
+   EGLint ClientMinorVersion;
+   EGLint Flags;
+   EGLint Profile;
+   EGLint ResetNotificationStrategy;
+   EGLint ContextPriority;
+   EGLBoolean NoError;
+   EGLint ReleaseBehavior;
 };
 
 
 extern EGLBoolean
-_eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
+_eglInitContext(_EGLContext *ctx, _EGLDisplay *disp,
                 _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 *disp, _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 _EGLContext *
+_eglBindContextToThread(_EGLContext *ctx, _EGLThreadInfo *t);
 
-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;
+}
 
 
-extern 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);
+}
 
 
 /**
- * Return true if the context is bound to a thread.
+ * Lookup a handle to find the linked context.
+ * Return NULL if the handle has no corresponding linked context.
  */
-static INLINE EGLBoolean
-_eglIsContextBound(_EGLContext *ctx)
+static inline _EGLContext *
+_eglLookupContext(EGLContext context, _EGLDisplay *disp)
 {
-   return (ctx->Binding != NULL);
+   _EGLContext *ctx = (_EGLContext *) context;
+   if (!disp || !_eglCheckResource((void *) ctx, _EGL_RESOURCE_CONTEXT, disp))
+      ctx = NULL;
+   return ctx;
 }
 
 
+/**
+ * Return the handle of a linked context, or EGL_NO_CONTEXT.
+ */
+static inline EGLContext
+_eglGetContextHandle(_EGLContext *ctx)
+{
+   _EGLResource *res = (_EGLResource *) ctx;
+   return (res && _eglIsResourceLinked(res)) ?
+      (EGLContext) ctx : EGL_NO_CONTEXT;
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* EGLCONTEXT_INCLUDED */