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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 The ScummVM project
*
* The ReInherit Engine is (C)2000-2003 by Daniel Balsom.
*
* 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.
*
* $Header$
*
*/
// Graphics maniuplation routines - private header file
#ifndef SAGA_GFX_H_
#define SAGA_GFX_H_
#include <graphics/surface.h>
namespace Saga {
using Common::Point;
using Common::Rect;
struct CLIPINFO {
// input members
const Rect *src_rect;
const Rect *dst_rect;
const Point *dst_pt;
// output members
int nodraw;
int src_draw_x;
int src_draw_y;
int dst_draw_x;
int dst_draw_y;
int draw_w;
int draw_h;
};
struct PALENTRY {
byte red;
byte green;
byte blue;
};
struct COLOR {
int red;
int green;
int blue;
int alpha;
};
struct SURFACE : Graphics::Surface {
Rect clip_rect;
};
#define PAL_ENTRIES 256
#define RGB_RED 0x00FF0000UL
#define RGB_GREEN 0x0000FF00UL
#define RGB_BLUE 0x000000FFUL
#define CURSOR_W 7
#define CURSOR_H 7
#define CURSOR_ORIGIN_X 4
#define CURSOR_ORIGIN_Y 4
#define RED_WEIGHT 0.299
#define GREEN_WEIGHT 0.587
#define BLUE_WEIGHT 0.114
int drawPalette(SURFACE *dst_s);
int bufToSurface(SURFACE *ds, const byte *src, int src_w, int src_h, Rect *src_rect, Point *dst_pt);
int bufToBuffer(byte * dst_buf, int dst_w, int dst_h, const byte *src,
int src_w, int src_h, Rect *src_rect, Point *dst_pt);
int getClipInfo(CLIPINFO *clipinfo);
int drawRect(SURFACE *ds, const Rect *dst_rect, int color);
int drawFrame(SURFACE *ds, const Point *p1, const Point *p2, int color);
int drawPolyLine(SURFACE *ds, const Point *pts, int pt_ct, int draw_color);
int clipLine(SURFACE *ds, const Point *src_p1, const Point *src_p2, Point *dst_p1, Point *dst_p2);
void drawLine(SURFACE * ds, const Point *p1, const Point *p2, int color);
bool hitTestPoly(const Point *points, unsigned int npoints, const Point& test_point);
class Gfx {
public:
Gfx(OSystem *system, int width, int height, GameDetector &detector);
SURFACE *getBackBuffer();
int getWhite();
int getBlack();
int matchColor(unsigned long colormask);
int setPalette(SURFACE *surface, PALENTRY *pal);
int getCurrentPal(PALENTRY *src_pal);
int palToBlack(SURFACE *surface, PALENTRY *src_pal, double percent);
int blackToPal(SURFACE *surface, PALENTRY *src_pal, double percent);
void updateCursor() { setCursor(getWhite()); }
void showCursor(bool state);
private:
void setCursor(int best_white);
int _init;
SURFACE _back_buf;
int _white_index;
int _black_index;
byte _cur_pal[PAL_ENTRIES * 4];
OSystem *_system;
};
} // End of namespace Saga
#endif
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