wine/dlls/ttydrv/palette.c

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/*
* TTY palette driver
*
* Copyright 1999 Patrik Stridvall
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include "gdi.h"
#include "winbase.h"
#include "ttydrv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ttydrv);
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/**********************************************************************/
static PALETTEENTRY *COLOR_sysPal;
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static unsigned int palette_size = 256; /* FIXME */
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/***********************************************************************
* TTYDRV_PALETTE_Initialize
*/
BOOL TTYDRV_PALETTE_Initialize(void)
{
unsigned int i;
PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS];
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TRACE("(void)\n");
COLOR_sysPal = (PALETTEENTRY *) HeapAlloc(GetProcessHeap(), 0, sizeof(PALETTEENTRY) * palette_size);
if(COLOR_sysPal == NULL) {
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WARN("No memory to create system palette!\n");
return FALSE;
}
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GetPaletteEntries( GetStockObject(DEFAULT_PALETTE), 0, NB_RESERVED_COLORS, sys_pal_template );
for(i=0; i < palette_size; i++ ) {
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const PALETTEENTRY *src;
PALETTEENTRY *dst = &COLOR_sysPal[i];
if(i < NB_RESERVED_COLORS/2) {
src = &sys_pal_template[i];
} else if(i >= palette_size - NB_RESERVED_COLORS/2) {
src = &sys_pal_template[NB_RESERVED_COLORS + i - palette_size];
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} else {
PALETTEENTRY pe = { 0, 0, 0, 0 };
src = &pe;
}
if((src->peRed + src->peGreen + src->peBlue) <= 0xB0) {
dst->peRed = 0;
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dst->peGreen = 0;
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dst->peBlue = 0;
dst->peFlags = PC_SYS_USED;
} else {
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dst->peRed = 255;
dst->peGreen= 255;
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dst->peBlue = 255;
dst->peFlags = PC_SYS_USED;
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}
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}
return TRUE;
}
/***********************************************************************
* GetSystemPaletteEntries (TTYDRV.@)
*/
UINT TTYDRV_GetSystemPaletteEntries( TTYDRV_PDEVICE *dev, UINT start, UINT count,
LPPALETTEENTRY entries )
{
UINT i;
if (!entries) return palette_size;
if (start >= palette_size) return 0;
if (start + count >= palette_size) count = palette_size - start;
for (i = 0; i < count; i++)
{
entries[i].peRed = COLOR_sysPal[start + i].peRed;
entries[i].peGreen = COLOR_sysPal[start + i].peGreen;
entries[i].peBlue = COLOR_sysPal[start + i].peBlue;
entries[i].peFlags = 0;
TRACE("\tidx(%02x) -> RGB(%08lx)\n", start + i, *(COLORREF*)(entries + i) );
}
return count;
}