+/**************************************************************************
+ *
+ * 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;
_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;
};
-PUBLIC EGLBoolean
-_eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
+extern EGLBoolean
+_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;
+}
-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);
+}
/**
- * 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 */
projects / mesa.git / blobdiff