dlls/ttydrv/palette.c

   1 /*
   2  * TTY palette driver
   3  *
   4  * Copyright 1999 Patrik Stridvall
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24
  25 #include "gdi.h"
  26 #include "winbase.h"
  27 #include "ttydrv.h"
  28 #include "wine/debug.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(ttydrv);
  31
  32 /**********************************************************************/
  33
  34 static PALETTEENTRY *COLOR_sysPal;
  35
  36 static unsigned int palette_size = 256;  /* FIXME */
  37
  38 /***********************************************************************
  39  *           TTYDRV_PALETTE_Initialize
  40  */
  41 BOOL TTYDRV_PALETTE_Initialize(void)
  42 {
  43   unsigned int i;
  44   PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
  45
  46   TRACE("(void)\n");
  47
  48   COLOR_sysPal = HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY) * palette_size);
  49   if(COLOR_sysPal == NULL) {
  50     WARN("No memory to create system palette!\n");
  51     return FALSE;
  52   }
  53
  54   GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
  55
  56   for(i=0; i < palette_size; i++ ) {
  57     const PALETTEENTRY *src;
  58     PALETTEENTRY *dst = &COLOR_sysPal[i];
  59
  60     if(i < NB_RESERVED_COLORS/2) {
  61       src = &sys_pal_template[i];
  62     } else if(i >= palette_size - NB_RESERVED_COLORS/2) {
  63       src = &sys_pal_template[NB_RESERVED_COLORS + i - palette_size];
  64     } else {
  65       PALETTEENTRY pe = { 0, 0, 0, 0 };
  66       src = &pe;
  67     }
  68
  69     if((src->peRed + src->peGreen + src->peBlue) <= 0xB0) {
  70       dst->peRed = 0;
  71       dst->peGreen = 0;
  72       dst->peBlue = 0;
  73       dst->peFlags = PC_SYS_USED;
  74     } else {
  75       dst->peRed = 255;
  76       dst->peGreen= 255;
  77       dst->peBlue = 255;
  78       dst->peFlags = PC_SYS_USED;
  79     }
  80   }
  81
  82   return TRUE;
  83 }
  84
  85
  86 /***********************************************************************
  87  *               GetSystemPaletteEntries   (TTYDRV.@)
  88  */
  89 UINT TTYDRV_GetSystemPaletteEntries( TTYDRV_PDEVICE *dev, UINT start, UINT count,
  90                                      LPPALETTEENTRY entries )
  91 {
  92     UINT i;
  93
  94     if (!entries) return palette_size;
  95     if (start >= palette_size) return 0;
  96     if (start + count >= palette_size) count = palette_size - start;
  97
  98     for (i = 0; i < count; i++)
  99     {
 100         entries[i].peRed   = COLOR_sysPal[start + i].peRed;
 101         entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
 102         entries[i].peBlue  = COLOR_sysPal[start + i].peBlue;
 103         entries[i].peFlags = 0;
 104         TRACE("\tidx(%02x) -> RGB(%08lx)\n", start + i, *(COLORREF*)(entries + i) );
 105     }
 106     return count;
 107 }