formconv.cpp

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/*
**  Command & Conquer Generals Zero Hour(tm)
**  Copyright 2025 Electronic Arts Inc.
**
**  This program is free software: you can redistribute it and/or modify
**  it under the terms of the GNU General Public License as published by
**  the Free Software Foundation, either version 3 of the License, or
**  (at your option) any later version.
**
**  This program is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
**  GNU General Public License for more details.
**
**  You should have received a copy of the GNU General Public License
**  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
 
/***********************************************************************************************
 ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
 ***********************************************************************************************
 *                                                                                             *
 *                 Project Name : WW3D                                                         *
 *                                                                                             *
 *                     $Archive:: /Commando/Code/ww3d2/formconv.cpp                           $*
 *                                                                                             *
 *              Original Author:: Nathaniel Hoffman                                            *
 *                                                                                             *
 *                       Author : Kenny Mitchell                                               * 
 *                                                                                             * 
 *                     $Modtime:: 06/27/02 1:27p                                              $*
 *                                                                                             *
 *                    $Revision:: 3                                                           $*
 *                                                                                             *
 * 06/27/02 KM Z Format support                                                                                     *
 *---------------------------------------------------------------------------------------------*
 * Functions:                                                                                  *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "formconv.h"
 
D3DFORMAT WW3DFormatToD3DFormatConversionArray[WW3D_FORMAT_COUNT] = {
    D3DFMT_UNKNOWN,
    D3DFMT_R8G8B8,
    D3DFMT_A8R8G8B8,
    D3DFMT_X8R8G8B8,
    D3DFMT_R5G6B5,
    D3DFMT_X1R5G5B5,
    D3DFMT_A1R5G5B5,
    D3DFMT_A4R4G4B4,
    D3DFMT_R3G3B2,
    D3DFMT_A8,
    D3DFMT_A8R3G3B2,
    D3DFMT_X4R4G4B4,
    D3DFMT_A8P8,
    D3DFMT_P8,
    D3DFMT_L8,
    D3DFMT_A8L8,
    D3DFMT_A4L4,
    D3DFMT_V8U8,        // Bumpmap
    D3DFMT_L6V5U5,      // Bumpmap
    D3DFMT_X8L8V8U8,    // Bumpmap
    D3DFMT_DXT1,
    D3DFMT_DXT2,
    D3DFMT_DXT3,
    D3DFMT_DXT4,
    D3DFMT_DXT5
};
 
// adding depth stencil format conversion
D3DFORMAT WW3DZFormatToD3DFormatConversionArray[WW3D_ZFORMAT_COUNT] = 
{
#ifndef _XBOX
    D3DFMT_UNKNOWN,
    D3DFMT_D16_LOCKABLE, // 16-bit z-buffer bit depth. This is an application-lockable surface format. 
    D3DFMT_D32, // 32-bit z-buffer bit depth. 
    D3DFMT_D15S1, // 16-bit z-buffer bit depth where 15 bits are reserved for the depth channel and 1 bit is reserved for the stencil channel. 
    D3DFMT_D24S8, // 32-bit z-buffer bit depth using 24 bits for the depth channel and 8 bits for the stencil channel. 
    D3DFMT_D16, // 16-bit z-buffer bit depth. 
    D3DFMT_D24X8, // 32-bit z-buffer bit depth using 24 bits for the depth channel. 
    D3DFMT_D24X4S4, // 32-bit z-buffer bit depth using 24 bits for the depth channel and 4 bits for the stencil channel. 
#else
    D3DFMT_UNKNOWN,
    D3DFMT_D16_LOCKABLE, // 16-bit z-buffer bit depth. This is an application-lockable surface format. 
    D3DFMT_D32, // 32-bit z-buffer bit depth. 
    D3DFMT_D15S1, // 16-bit z-buffer bit depth where 15 bits are reserved for the depth channel and 1 bit is reserved for the stencil channel. 
    D3DFMT_D24S8, // 32-bit z-buffer bit depth using 24 bits for the depth channel and 8 bits for the stencil channel. 
    D3DFMT_D16, // 16-bit z-buffer bit depth. 
    D3DFMT_D24X8, // 32-bit z-buffer bit depth using 24 bits for the depth channel. 
    D3DFMT_D24X4S4, // 32-bit z-buffer bit depth using 24 bits for the depth channel and 4 bits for the stencil channel. 
 
    D3DFMT_LIN_D24S8,
    D3DFMT_LIN_F24S8,
    D3DFMT_LIN_D16,
    D3DFMT_LIN_F16
#endif
};
 
 
/*
#define HIGHEST_SUPPORTED_D3DFORMAT D3DFMT_X8L8V8U8 //A4L4
WW3DFormat D3DFormatToWW3DFormatConversionArray[HIGHEST_SUPPORTED_D3DFORMAT + 1] = {
    WW3D_FORMAT_UNKNOWN,        // 0
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_R8G8B8,     // 20
    WW3D_FORMAT_A8R8G8B8,
    WW3D_FORMAT_X8R8G8B8,
    WW3D_FORMAT_R5G6B5,
    WW3D_FORMAT_X1R5G5B5,
    WW3D_FORMAT_A1R5G5B5,
    WW3D_FORMAT_A4R4G4B4,
    WW3D_FORMAT_R3G3B2,
    WW3D_FORMAT_A8,
    WW3D_FORMAT_A8R3G3B2,
    WW3D_FORMAT_X4R4G4B4,   // 30
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_A8P8,           // 40
    WW3D_FORMAT_P8,
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,    WW3D_FORMAT_UNKNOWN,
    WW3D_FORMAT_L8,         // 50
    WW3D_FORMAT_A8L8,
    WW3D_FORMAT_A4L4
};
*/
 
#ifndef _XBOX
#define HIGHEST_SUPPORTED_D3DFORMAT D3DFMT_X8L8V8U8
#define HIGHEST_SUPPORTED_D3DZFORMAT D3DFMT_D24X4S4
#else
#define HIGHEST_SUPPORTED_D3DFORMAT  D3DFMT_LIN_R8G8B8A8 
#define HIGHEST_SUPPORTED_D3DZFORMAT    D3DFMT_LIN_F16
#endif
WW3DFormat D3DFormatToWW3DFormatConversionArray[HIGHEST_SUPPORTED_D3DFORMAT + 1];
WW3DZFormat D3DFormatToWW3DZFormatConversionArray[HIGHEST_SUPPORTED_D3DZFORMAT + 1];
 
D3DFORMAT WW3DFormat_To_D3DFormat(WW3DFormat ww3d_format) {
    if (ww3d_format >= WW3D_FORMAT_COUNT) {
        return D3DFMT_UNKNOWN;
    } else {
        return WW3DFormatToD3DFormatConversionArray[(unsigned int)ww3d_format];
    }
}
 
WW3DFormat D3DFormat_To_WW3DFormat(D3DFORMAT d3d_format)
{
    switch (d3d_format) {
    // The DXT-codes are created with FOURCC macro and thus can't be placed in the conversion table
    case D3DFMT_DXT1: return WW3D_FORMAT_DXT1;
    case D3DFMT_DXT2: return WW3D_FORMAT_DXT2;
    case D3DFMT_DXT3: return WW3D_FORMAT_DXT3;
    case D3DFMT_DXT4: return WW3D_FORMAT_DXT4;
    case D3DFMT_DXT5: return WW3D_FORMAT_DXT5;
    default:
        if (d3d_format > HIGHEST_SUPPORTED_D3DFORMAT) {
            return WW3D_FORMAT_UNKNOWN;
        } else {
            return D3DFormatToWW3DFormatConversionArray[(unsigned int)d3d_format];
        }
        break;
    }
}
 
//**********************************************************************************************

D3DFORMAT WW3DZFormat_To_D3DFormat(WW3DZFormat ww3d_zformat) 
{
    if (ww3d_zformat >= WW3D_ZFORMAT_COUNT) 
    {
        return D3DFMT_UNKNOWN;
    }
    else 
    {
        return WW3DZFormatToD3DFormatConversionArray[(unsigned int)ww3d_zformat];
    }
}
 
//**********************************************************************************************

WW3DZFormat D3DFormat_To_WW3DZFormat(D3DFORMAT d3d_format)
{
    if (d3d_format>HIGHEST_SUPPORTED_D3DZFORMAT) 
    {
        return WW3D_ZFORMAT_UNKNOWN;
    }
    else 
    {
        return D3DFormatToWW3DZFormatConversionArray[(unsigned int)d3d_format];
    }
}
 
//**********************************************************************************************

void Init_D3D_To_WW3_Conversion()
{
    for (int i=0;i<HIGHEST_SUPPORTED_D3DFORMAT;++i) {
        D3DFormatToWW3DFormatConversionArray[i]=WW3D_FORMAT_UNKNOWN;
    }
 
    D3DFormatToWW3DFormatConversionArray[D3DFMT_R8G8B8]=WW3D_FORMAT_R8G8B8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A8R8G8B8]=WW3D_FORMAT_A8R8G8B8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_X8R8G8B8]=WW3D_FORMAT_X8R8G8B8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_R5G6B5]=WW3D_FORMAT_R5G6B5;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_X1R5G5B5]=WW3D_FORMAT_X1R5G5B5;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A1R5G5B5]=WW3D_FORMAT_A1R5G5B5;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A4R4G4B4]=WW3D_FORMAT_A4R4G4B4;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_R3G3B2]=WW3D_FORMAT_R3G3B2;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A8]=WW3D_FORMAT_A8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A8R3G3B2]=WW3D_FORMAT_A8R3G3B2;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_X4R4G4B4]=WW3D_FORMAT_X4R4G4B4;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A8P8]=WW3D_FORMAT_A8P8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_P8]=WW3D_FORMAT_P8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_L8]=WW3D_FORMAT_L8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A8L8]=WW3D_FORMAT_A8L8;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_A4L4]=WW3D_FORMAT_A4L4;
    D3DFormatToWW3DFormatConversionArray[D3DFMT_V8U8]=WW3D_FORMAT_U8V8;             // Bumpmap
    D3DFormatToWW3DFormatConversionArray[D3DFMT_L6V5U5]=WW3D_FORMAT_L6V5U5;       // Bumpmap
    D3DFormatToWW3DFormatConversionArray[D3DFMT_X8L8V8U8]=WW3D_FORMAT_X8L8V8U8; // Bumpmap
 
    // init depth stencil conversion
    for (i=0; i<HIGHEST_SUPPORTED_D3DZFORMAT; i++) 
    {
        D3DFormatToWW3DZFormatConversionArray[i]=WW3D_ZFORMAT_UNKNOWN;
    }
 
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_D16_LOCKABLE]=WW3D_ZFORMAT_D16_LOCKABLE;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_D32]=WW3D_ZFORMAT_D32;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_D15S1]=WW3D_ZFORMAT_D15S1;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_D24S8]=WW3D_ZFORMAT_D24S8;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_D16]=WW3D_ZFORMAT_D16;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_D24X8]=WW3D_ZFORMAT_D24X8;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_D24X4S4]=WW3D_ZFORMAT_D24X4S4;
#ifdef _XBOX
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_LIN_D24S8]=WW3D_ZFORMAT_LIN_D24S8;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_LIN_F24S8]=WW3D_ZFORMAT_LIN_F24S8;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_LIN_D16]=WW3D_ZFORMAT_LIN_D16;
    D3DFormatToWW3DZFormatConversionArray[D3DFMT_LIN_F16]=WW3D_ZFORMAT_LIN_F16;
#endif
};