[Scummvm-cvs-logs] CVS: scummvm/scumm palette_he.cpp,NONE,1.1

[kirben]

Update of /cvsroot/scummvm/scummvm/scumm
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv1888/scumm

Added Files:
	palette_he.cpp 
Log Message:



--- NEW FILE: palette_he.cpp ---
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2001  Ludvig Strigeus
 * Copyright (C) 2001-2005 The ScummVM project
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/scumm/palette_he.cpp,v 1.1 2005/04/07 10:55:53 kirben Exp $
 *
 */

#include "stdafx.h"
#include "common/system.h"
#include "common/util.h"
#include "scumm/scumm.h"
#include "scumm/intern.h"
#include "scumm/resource.h"


namespace Scumm {

void ScummEngine_v99he::setPaletteFromPtr(const byte *ptr, int numcolor) {
	int i;
	byte *dest, r, g, b;

	if (numcolor < 0) {
		numcolor = getResourceDataSize(ptr) / 3;
	}

	checkRange(256, 0, numcolor, "Too many colors (%d) in Palette");

	dest = _hePalettes + 1024;

	for (i = 0; i < numcolor; i++) {
		r = *ptr++;
		g = *ptr++;
		b = *ptr++;

		if (i <= 15 || r < 252 || g < 252 || b < 252) {
			*dest++ = r;
			*dest++ = g;
			*dest++ = b;
			_hePalettes[1792 + i] = i;
		} else {
			dest += 3;
		}
	}

	for (i = 0; i < 10; ++i)
		_hePalettes[1792 + i] = i;
	for (i = 246; i < 256; ++i)
		_hePalettes[1792 + i] = i;

	setDirtyColors(0, numcolor - 1);
}

void ScummEngine_v99he::darkenPalette(int redScale, int greenScale, int blueScale, int startColor, int endColor) {
	if (startColor <= endColor) {
		const byte *cptr;
		const byte *palptr;
		int color, idx, j;

		palptr = getPalettePtr(_curPalIndex, _roomResource);
		for (j = startColor; j <= endColor; j++) {
			idx = _hePalettes[1792 + j];
			cptr = palptr + idx * 3;
			setDirtyColors(idx, idx);

			color = *cptr++;
			color = color * redScale / 0xFF;
			if (color > 255)
				color = 255;
			_hePalettes[1024 + idx * 3 + 0] = color;

			color = *cptr++;
			color = color * greenScale / 0xFF;
			if (color > 255)
				color = 255;
			_hePalettes[1024 + idx * 3 + 1] = color;

			color = *cptr++;
			color = color * blueScale / 0xFF;
			if (color > 255)
				color = 255;
			_hePalettes[1024 + idx * 3 + 2] = color;
		}
	}
}

void ScummEngine_v99he::copyPalColor(int dst, int src) {
	byte *dp, *sp;

	if ((uint) dst >= 256 || (uint) src >= 256)
		error("copyPalColor: invalid values, %d, %d", dst, src);

	dp = &_hePalettes[1024 + dst * 3];
	sp = &_hePalettes[1024 + src * 3];

	dp[0] = sp[0];
	dp[1] = sp[1];
	dp[2] = sp[2];
	_hePalettes[1768 + dst] = _hePalettes[1768 + src];

	setDirtyColors(dst, dst);
}

void ScummEngine_v99he::setPalColor(int idx, int r, int g, int b) {
	_hePalettes[1024 + idx * 3 + 0] = r;
	_hePalettes[1024 + idx * 3 + 1] = g;
	_hePalettes[1024 + idx * 3 + 2] = b;
	_hePalettes[1792 + idx] = idx;;
	setDirtyColors(idx, idx);
}

void ScummEngine_v99he::updatePalette() {
	if (_palDirtyMax == -1)
		return;

	int first = _palDirtyMin;
	int num = _palDirtyMax - first + 1;
	int i;

	byte palette_colors[1024];
	byte *p = palette_colors;

	for (i = _palDirtyMin; i <= _palDirtyMax; i++) {
		byte *data = _hePalettes + 1024 + i * 3;

		*p++ = data[0];
		*p++ = data[1];
		*p++ = data[2];
		*p++ = 0;
	}
	
	_system->setPalette(palette_colors, first, num);

	_palDirtyMax = -1;
	_palDirtyMin = 256;
}

} // End of namespace Scumm