workbench/classes/zune/texteditor/mcc/AllocBitMap.c

   1 /***************************************************************************
   2
   3  TextEditor.mcc - Textediting MUI Custom Class
   4  Copyright (C) 1997-2000 Allan Odgaard
   5  Copyright (C) 2005-2014 TextEditor.mcc Open Source Team
   6
   7  This library is free software; you can redistribute it and/or
   8  modify it under the terms of the GNU Lesser General Public
   9  License as published by the Free Software Foundation; either
  10  version 2.1 of the License, or (at your option) any later version.
  11
  12  This library is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  Lesser General Public License for more details.
  16
  17  TextEditor class Support Site:  http://www.sf.net/projects/texteditor-mcc
  18
  19  $Id$
  20
  21 ***************************************************************************/
  22
  23 #include <exec/memory.h>
  24 #include <proto/graphics.h>
  25 #include <proto/exec.h>
  26
  27 #include "SDI_compiler.h"
  28
  29 #include "private.h"
  30 #include "Debug.h"
  31
  32 #if 0
  33 #define USE_OS3 (1)
  34 #else
  35 #define USE_OS3 (((struct Library *)GfxBase)->lib_Version >= 39)
  36 #endif
  37
  38 /// MUIG_AllocBitMap()
  39 struct BitMap * SAVEDS ASM MUIG_AllocBitMap(REG(d0, LONG width), REG(d1, LONG height), REG(d2, LONG depth), REG(d3, LONG flags), REG(a0, struct BitMap *friend))
  40 {
  41   struct BitMap *bm = NULL;
  42
  43   ENTER();
  44
  45   #if defined(__amigaos4__)
  46   bm = AllocBitMap(width,height,depth,flags,friend);
  47   #elif defined(__MORPHOS__) || defined(__AROS__)
  48   bm = AllocBitMap(width,height,depth,flags | BMF_MINPLANES | BMF_DISPLAYABLE, friend);
  49   #else
  50   if(USE_OS3)
  51   {
  52     if(friend != NULL)
  53     {
  54       // FindSemaphore() must be called in Forbid()den state
  55       Forbid();
  56       if(FindSemaphore((char *)"cybergraphics.library") != NULL &&
  57          (GetBitMapAttr(friend,BMA_FLAGS) & BMF_INTERLEAVED) == 0)
  58         flags |= BMF_MINPLANES;
  59       else
  60         friend = NULL;
  61       Permit();
  62     }
  63
  64     bm = AllocBitMap(width,height,depth,flags,friend);
  65   }
  66   else
  67   {
  68     if((bm = (struct BitMap *)AllocVec(sizeof(*bm), MEMF_CLEAR)) != NULL)
  69     {
  70       int i, plsize=RASSIZE(width,height);
  71
  72       InitBitMap(bm,depth,width,height);
  73
  74       if((bm->Planes[0] = AllocVec(plsize*depth,(flags & BMF_CLEAR) ? MEMF_CHIP|MEMF_CLEAR : MEMF_CHIP))) // !!!
  75       {
  76         for(i=1;i<depth;i++)
  77           bm->Planes[i] = (PLANEPTR)(((ULONG)bm->Planes[i-1]) + plsize);
  78       }
  79       else
  80       {
  81         FreeVec(bm);
  82         bm = NULL;
  83       }
  84     }
  85   }
  86   #endif
  87
  88   RETURN(bm);
  89   return bm;
  90 }
  91
  92 ///
  93 /// MUIG_FreeBitMap()
  94 void SAVEDS ASM MUIG_FreeBitMap(REG(a0, struct BitMap *bm))
  95 {
  96   ENTER();
  97
  98   #if defined(__amigaos4__) || defined(__MORPHOS__) || defined(__AROS__)
  99   FreeBitMap(bm);
 100   #else
 101   WaitBlit();  /* OCS/AGA need this before FreeBitMap() call */
 102
 103   if(USE_OS3)
 104   {
 105     FreeBitMap(bm);
 106   }
 107   else
 108   {
 109     FreeVec(bm->Planes[0]);
 110     FreeVec(bm);
 111   }
 112   #endif
 113
 114   LEAVE();
 115 }
 116
 117 ///