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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
// 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;
enum CursorType {
kCursorNormal,
kCursorBusy
};
struct ClipData {
// input members
Rect sourceRect;
Rect destRect;
Point destPoint;
// output members
Point drawSource;
Point drawDest;
int drawWidth;
int drawHeight;
bool calcClip() {
Common::Rect s;
// Adjust the rect to draw to its screen coordinates
s = sourceRect;
s.left += destPoint.x;
s.right += destPoint.x;
s.top += destPoint.y;
s.bottom += destPoint.y;
s.clip(destRect);
if ((s.width() <= 0) || (s.height() <= 0)) {
return false;
}
drawSource.x = s.left - sourceRect.left - destPoint.x;
drawSource.y = s.top - sourceRect.top - destPoint.y;
drawDest.x = s.left;
drawDest.y = s.top;
drawWidth = s.width();
drawHeight = s.height();
return true;
}
};
#include "common/pack-start.h" // START STRUCT PACKING
struct PalEntry {
byte red;
byte green;
byte blue;
} PACKED_STRUCT;
#include "common/pack-end.h" // END STRUCT PACKING
struct Color {
int red;
int green;
int blue;
int alpha;
};
struct Surface : Graphics::Surface {
void transitionDissolve(const byte *sourceBuffer, const Common::Rect &sourceRect, int flags, double percent);
void drawPalette();
void drawPolyLine(const Point *points, int count, int color);
void blit(const Common::Rect &destRect, const byte *sourceBuffer);
void getRect(Common::Rect &rect) {
rect.left = rect.top = 0;
rect.right = w;
rect.bottom = h;
}
void drawFrame(const Common::Point &p1, const Common::Point &p2, int color) {
Common::Rect rect(MIN(p1.x, p2.x), MIN(p1.y, p2.y), MAX(p1.x, p2.x) + 1, MAX(p1.y, p2.y) + 1);
frameRect(rect, color);
}
void drawRect(const Common::Rect &destRect, int color) {
Common::Rect rect(w , h);
rect.clip(destRect);
if (rect.isValidRect()) {
fillRect(rect, color);
}
}
};
#define PAL_ENTRIES 256
#define CURSOR_W 7
#define CURSOR_H 7
#define CURSOR_ORIGIN_X 4
#define CURSOR_ORIGIN_Y 4
bool hitTestPoly(const Point *points, unsigned int npoints, const Point& test_point);
class SagaEngine;
class Gfx {
public:
Gfx(SagaEngine *vm, OSystem *system, int width, int height);
~Gfx();
Surface *getBackBuffer() {
return &_backBuffer;
}
void initPalette();
void setPalette(const PalEntry *pal, bool full = false);
void setPaletteColor(int n, int r, int g, int b);
void getCurrentPal(PalEntry *src_pal);
void savePalette() { getCurrentPal(_savedPalette); }
void restorePalette() { setPalette(_savedPalette, true); }
void palToBlack(PalEntry *src_pal, double percent);
void blackToPal(PalEntry *src_pal, double percent);
void palFade(PalEntry *srcPal, int16 from, int16 to, int16 start, int16 numColors, double percent);
void showCursor(bool state);
void setCursor(CursorType cursorType = kCursorNormal);
private:
int _init;
Surface _backBuffer;
byte _currentPal[PAL_ENTRIES * 4];
OSystem *_system;
SagaEngine *_vm;
PalEntry _globalPalette[PAL_ENTRIES];
PalEntry _savedPalette[PAL_ENTRIES];
};
} // End of namespace Saga
#endif
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