// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// Reference EGL implementation to support EGL sync objects and OpenWF extensions

#include "eglprivate.h"

#include <e32debug.h>

// Helper macros

//

#define GET_THREAD_SESSION(s,r) CEglThreadSession* s = CEglThreadSession::Static(); \

                                if (!s) \

                                    { \

                                    return r; \

                                    }

#define PANIC_NOT_SUPPORTED     RDebug::Printf("EGL Panic %s %s:%d\n",__func__,__FILE__,__LINE__);User::Panic(KEglPanicCategory, EEglPanicNotSupported); \

                                return 0;

// EGL API entrypoints

//

EXPORT_C EGLDisplay eglGetDisplay(NativeDisplayType display_id)

	{

	GET_THREAD_SESSION(session, EGL_NO_DISPLAY)

	return session->EglGetDisplay(display_id);

	}

EXPORT_C EGLBoolean eglInitialize(EGLDisplay dpy, EGLint* major, EGLint* minor)

	{

	GET_THREAD_SESSION(session, EGL_FALSE)

	return session->EglInitialize(dpy, major, minor);

	}

EXPORT_C EGLBoolean eglTerminate(EGLDisplay dpy)

	{

	GET_THREAD_SESSION(session, EGL_FALSE)

	return session->EglTerminate(dpy);

	}

EXPORT_C EGLBoolean eglReleaseThread(void)

	{

	// do not call CEglThreadSession::Static() here as it may create thread state if it does not exist

	//

	CEglThreadSession* session = reinterpret_cast<CEglThreadSession*>(Dll::Tls());

	if (session)

		{

		delete session;

		Dll::FreeTls();

		}

	return EGL_TRUE;

	}

EXPORT_C EGLint eglGetError(void)

	{

	// EGL spec section 3.11: GetError will create thread state object, 

	// it is recommended not to call this API immediately after calling ReleaseThread

	// for that reason.

	// If session creation fails, we returns BAD_ALLOC

	//

	GET_THREAD_SESSION(session, EGL_BAD_ALLOC)

	return session->EglGetError();

	}

EXPORT_C const char* eglQueryString(EGLDisplay dpy, EGLint name)

	{

	GET_THREAD_SESSION(session, NULL)

	return session->EglQueryString(dpy, name);

	}

EXPORT_C TFuncPtrEglProc eglGetProcAddress (const char *procname)

	{

	GET_THREAD_SESSION(session, NULL)

	return session->EglGetProcAddress(procname);

	}

// Unsupported EGL APIs

//

EXPORT_C EGLBoolean eglGetConfigs(EGLDisplay /*dpy*/, EGLConfig */*configs*/,

			 EGLint /*config_size*/, EGLint */*num_config*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglChooseConfig(EGLDisplay /*dpy*/, const EGLint */*attrib_list*/,

			   EGLConfig */*configs*/, EGLint /*config_size*/,

			   EGLint */*num_config*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglGetConfigAttrib(EGLDisplay /*dpy*/, EGLConfig /*config*/,

			      EGLint /*attribute*/, EGLint */*value*/)

	{

	PANIC_NOT_SUPPORTED	

	}

EXPORT_C EGLSurface eglCreateWindowSurface(EGLDisplay /*dpy*/, EGLConfig /*config*/,

				  EGLNativeWindowType /*win*/,

				  const EGLint */*attrib_list*/)

	{

	PANIC_NOT_SUPPORTED	

	}

EXPORT_C EGLSurface eglCreatePbufferSurface(EGLDisplay /*dpy*/, EGLConfig /*config*/,

				   const EGLint */*attrib_list*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLSurface eglCreatePixmapSurface(EGLDisplay /*dpy*/, EGLConfig /*config*/,

				  EGLNativePixmapType /*pixmap*/,

				  const EGLint */*attrib_list*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglDestroySurface(EGLDisplay /*dpy*/, EGLSurface /*surface*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglQuerySurface(EGLDisplay /*dpy*/, EGLSurface /*surface*/,

			   EGLint /*attribute*/, EGLint */*value*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglBindAPI(EGLenum /*api*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLenum eglQueryAPI(void)

	{

	PANIC_NOT_SUPPORTED	

	}

EXPORT_C EGLBoolean eglWaitClient(void)

	{

	PANIC_NOT_SUPPORTED	

	}

EXPORT_C EGLSurface eglCreatePbufferFromClientBuffer(

	      EGLDisplay /*dpy*/, EGLenum /*buftype*/, EGLClientBuffer /*buffer*/,

	      EGLConfig /*config*/, const EGLint */*attrib_list*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglSurfaceAttrib(EGLDisplay /*dpy*/, EGLSurface /*surface*/,

			    EGLint /*attribute*/, EGLint /*value*/)

	{

	PANIC_NOT_SUPPORTED	

	}

EXPORT_C EGLBoolean eglBindTexImage(EGLDisplay /*dpy*/, EGLSurface /*surface*/, EGLint /*buffer*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglReleaseTexImage(EGLDisplay /*dpy*/, EGLSurface /*surface*/, EGLint /*buffer*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglSwapInterval(EGLDisplay /*dpy*/, EGLint /*interval*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLContext eglCreateContext(EGLDisplay /*dpy*/, EGLConfig /*config*/,

			    EGLContext /*share_context*/,

			    const EGLint */*attrib_list*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglDestroyContext(EGLDisplay /*dpy*/, EGLContext /*ctx*/)

	{

	PANIC_NOT_SUPPORTED	

	}

EXPORT_C EGLBoolean eglMakeCurrent(EGLDisplay /*dpy*/, EGLSurface /*draw*/,

			  EGLSurface /*read*/, EGLContext /*ctx*/)

	{

	PANIC_NOT_SUPPORTED	

	}

EXPORT_C EGLContext eglGetCurrentContext(void)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLSurface eglGetCurrentSurface(EGLint /*readdraw*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLDisplay eglGetCurrentDisplay(void)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglQueryContext(EGLDisplay /*dpy*/, EGLContext /*ctx*/,

			   EGLint /*attribute*/, EGLint */*value*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglWaitGL(void)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglWaitNative(EGLint /*engine*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglSwapBuffers(EGLDisplay /*dpy*/, EGLSurface /*surface*/)

	{

	PANIC_NOT_SUPPORTED

	}

EXPORT_C EGLBoolean eglCopyBuffers(EGLDisplay /*dpy*/, EGLSurface /*surface*/,

			  EGLNativePixmapType /*target*/)

	{

	PANIC_NOT_SUPPORTED

	}

// EGL_KHR_reusable_sync APIs

//

EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)

    {

    GET_THREAD_SESSION(session, EGL_NO_SYNC_KHR)

    return session->EglCreateSyncKhr(dpy, type, attrib_list);

    }

EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)

    {

    GET_THREAD_SESSION(session, EGL_FALSE)

    return session->EglDestroySyncKhr(dpy, sync);

    }

EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout)

    {

    GET_THREAD_SESSION(session, EGL_FALSE)

    return session->EglClientWaitSyncKhr(dpy, sync, flags, timeout);

    }

EGLBoolean eglSignalSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode)

    {

    GET_THREAD_SESSION(session, EGL_FALSE)

    return session->EglSignalSyncKhr(dpy, sync, mode);

    }

EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value)

    {

    GET_THREAD_SESSION(session, EGL_FALSE)

    return session->EglGetSyncAttribKhr(dpy, sync, attribute, value);

    }

// Private extensions

//

EGLint egl_Private_SignalSyncNOK(EGLDisplay dpy, EGLSyncKHR sync, EGLenum mode)

    {

    GET_THREAD_SESSION(session, EGL_BAD_ALLOC)

    return session->EglSignalSyncInternal(dpy, sync, mode);

    }

// Debug APIs

//

#ifdef _DEBUG

#define GET_THREAD_SESSION_ASSERT(s)    CEglThreadSession* s = CEglThreadSession::Static(); \

                                        __ASSERT_DEBUG(s, User::Panic(KEglPanicCategory, EEglPanicInvalidSession));

void egliDebugHeapMarkStart()

    {

    GET_THREAD_SESSION_ASSERT(session)

    session->EglHeapMarkStart();

    }

EGLint egliDebugHeapMarkEnd(EGLint count)

    {

    GET_THREAD_SESSION_ASSERT(session)    

    return session->EglHeapMarkEnd(count);

    }

void egliDebugSetBurstAllocFail(EGLenum type, EGLint rate, EGLint burst)

    {

    GET_THREAD_SESSION_ASSERT(session)

    session->EglHeapSetBurstAllocFail(type, rate, burst);

}

#endif //_DEBUG