/*******************************************************************************
 * pvbitmap.h
 *
 * Provides an API for bitmap manipulation.
 *
 * This file is derived from Microsoft sample source and is used by permission.
 *
 * ---------------------------------------------------------------------------
 * Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
 * Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
 *
 * POV-Ray is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * POV-Ray 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * ---------------------------------------------------------------------------
 * POV-Ray is based on the popular DKB raytracer version 2.12.
 * DKBTrace was originally written by David K. Buck.
 * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
 * ---------------------------------------------------------------------------
 * $File: //depot/public/povray/3.x/windows/pvbitmap.h $
 * $Revision: #1 $
 * $Change: 6069 $
 * $DateTime: 2013/11/06 11:59:40 $
 * $Author: chrisc $
 *******************************************************************************/

namespace povwin
{

/* Print Area selection */
#define PW_WINDOW        1
#define PW_CLIENT        2

/* Print Options selection */
#define PW_BESTFIT       1
#define PW_STRETCHTOPAGE 2
#define PW_SCALE         3

/* DIB Macros*/

// WIDTHBYTES performs DWORD-aligning of DIB scanlines.  The "bits"
// parameter is the bit count for the scanline (biWidth * biBitCount),
// and this macro returns the number of DWORD-aligned bytes needed
// to hold those bits.

#define WIDTHBYTES(bits)    (((bits) + 31) / 32 * 4)

/* Error constants */
enum {
      ERR_MIN = 0,                     // All error #s >= this value
      ERR_NOT_DIB = 0,                 // Tried to load a file, NOT a DIB!
      ERR_MEMORY,                      // Not enough memory!
      ERR_READ,                        // Error reading file!
      ERR_LOCK,                        // Error on a GlobalLock()!
      ERR_OPEN,                        // Error opening a file!
      ERR_CREATEPAL,                   // Error creating palette.
      ERR_GETDC,                       // Couldn't get a DC.
      ERR_CREATEDDB,                   // Error create a DDB.
      ERR_STRETCHBLT,                  // StretchBlt() returned failure.
      ERR_STRETCHDIBITS,               // StretchDIBits() returned failure.
      ERR_SETDIBITSTODEVICE,           // SetDIBitsToDevice() failed.
      ERR_STARTDOC,                    // Error calling StartDoc().
      ERR_NOGDIMODULE,                 // Couldn't find GDI module in memory.
      ERR_SETABORTPROC,                // Error calling SetAbortProc().
      ERR_STARTPAGE,                   // Error calling StartPage().
      ERR_NEWFRAME,                    // Error calling NEWFRAME escape.
      ERR_ENDPAGE,                     // Error calling EndPage().
      ERR_ENDDOC,                      // Error calling EndDoc().
      ERR_SETDIBITS,                   // Error calling SetDIBits().
      ERR_FILENOTFOUND,                // Error opening file in GetDib()
      ERR_INVALIDHANDLE,               // Invalid Handle
      ERR_DIBFUNCTION,                 // Error on call to DIB function
      ERR_MAX                          // All error #s < this value
     };



/* DIB constants */
#define PALVERSION   0x300

/* DIB macros */
#define IS_WIN30_DIB(lpbi)  ((*(LPDWORD)(lpbi)) == sizeof(BITMAPINFOHEADER))
#define RECTWIDTH(lpRect)     ((lpRect)->right - (lpRect)->left)
#define RECTHEIGHT(lpRect)    ((lpRect)->bottom - (lpRect)->top)

}