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/****************************************************************************
*
* Mesa 3-D graphics library
* Direct3D Driver Interface
*
* ========================================================================
*
* Copyright (C) 1991-2004 SciTech Software, 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, sublicense,
* 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 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
* SCITECH SOFTWARE INC 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.
*
* ======================================================================
*
* Language: ANSI C
* Environment: Windows 9x (Win32)
*
* Description: Useful generic macros.
*
****************************************************************************/
#ifndef __DGLMACROS_H
#define __DGLMACROS_H
#include <ddraw.h>
// Define the relevant RELEASE macro depending on C or C++
#if !defined(__cplusplus) || defined(CINTERFACE)
// Standard C version
#define RELEASE(x) if (x!=NULL) { x->lpVtbl->Release(x); x=NULL; }
#else
// C++ version
#define RELEASE(x) if (x!=NULL) { x->Release(); x=NULL; }
#endif
// We don't want a message *every* time we call an unsupported function
#define UNSUPPORTED(x) \
{ \
static BOOL bFirstTime = TRUE; \
if (bFirstTime) { \
bFirstTime = FALSE; \
ddlogError(DDLOG_WARN, (x), DDERR_CURRENTLYNOTAVAIL); \
} \
}
#define DGL_CHECK_CONTEXT \
if (ctx == NULL) return;
// Don't render if bCanRender is not TRUE.
#define DGL_CHECK_RENDER \
if (!dgl->bCanRender) return;
#if 0
#define TRY(a,b) (a)
#define TRY_ERR(a,b) (a)
#else
// hResult should be defined in the function
// Return codes should be checked via SUCCEDDED and FAILED macros
#define TRY(a,b) \
{ \
if (FAILED(hResult=(a))) \
ddlogError(DDLOG_ERROR, (b), hResult); \
}
// hResult is a global
// The label exit_with_error should be defined within the calling scope
#define TRY_ERR(a,b) \
{ \
if (FAILED(hResult=(a))) { \
ddlogError(DDLOG_ERROR, (b), hResult); \
goto exit_with_error; \
} \
}
#endif // #if 1
#endif
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