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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef BACKENDS_GRAPHICS_ATARI_CURSOR_H
#define BACKENDS_GRAPHICS_ATARI_CURSOR_H
#include "common/rect.h"
#include "common/scummsys.h"
#include "graphics/surface.h"
//#include "backends/platform/atari/atari-debug.h"
class AtariGraphicsManager;
struct Screen;
// Global state consists of:
// - palette (used for the overlay only atm)
// - shape (surface, dimensions, hotspot, keycolor)
// - visibility
// These always get updates by ScummVM, no need to differentiate between engines and the overlay.
struct Cursor {
Cursor(const AtariGraphicsManager *manager, const Screen *screen, int x, int y);
void reset(const Graphics::Surface *boundingSurf, int xOffset) {
_boundingSurf = boundingSurf;
_xOffset = xOffset;
_positionChanged = true;
_surfaceChanged = true;
_visibilityChanged = false;
_savedRect = _previousSrcRect = _alignedDstRect = Common::Rect();
}
// updates outOfScreen OR srcRect/dstRect (only if visible/needed)
void update();
// visibility
bool setVisible(bool visible) {
if (_visible == visible) {
return _visible;
}
bool last = _visible;
_visible = visible;
_visibilityChanged = true;
return last;
}
// position
Common::Point getPosition() const {
return Common::Point(_x, _y);
}
void setPosition(int x, int y) {
//atari_debug("Cursor::setPosition: %d, %d", x, y);
if (_x == x && _y == y)
return;
_x = x;
_y = y;
_positionChanged = true;
}
void updatePosition(int deltaX, int deltaY);
// surface
void setSurface(const void *buf, int w, int h, int hotspotX, int hotspotY, uint32 keycolor);
void setPalette(const byte *colors, uint start, uint num);
void convertSurfaceTo(const Graphics::PixelFormat &format);
bool isVisible() const {
return !_outOfScreen && _visible;
}
bool isChanged() const {
return _positionChanged || _surfaceChanged || _visibilityChanged;
}
Common::Rect flushBackground(const Common::Rect &alignedRect, bool directRendering);
void saveBackground();
void draw();
private:
void restoreBackground();
static byte _palette[256*3];
const AtariGraphicsManager *_manager;
const Screen *_parentScreen;
const Graphics::Surface *_boundingSurf;
int _xOffset = 0;
bool _positionChanged = true;
bool _surfaceChanged = true;
bool _visibilityChanged = false;
bool _visible = false;
int _x;
int _y;
bool _outOfScreen = true;
Common::Rect _srcRect;
Common::Rect _dstRect;
Graphics::Surface _savedBackground;
Common::Rect _savedRect;
Common::Rect _previousSrcRect;
Common::Rect _alignedDstRect;
// related to 'surface'
const byte *_buf = nullptr;
int _width;
int _height;
int _hotspotX;
int _hotspotY;
uint32 _keycolor;
// TODO: make all surface-related variables and functions static, similar to _palette/
// but there's a catch: we still need _surfaceChanged instantiated and convertTo may
// be called when clipping changes. Perhaps Cursor should be a singleton and those
// flags moved to Screen...
Graphics::Surface _surface;
Graphics::Surface _surfaceMask;
int _rShift, _gShift, _bShift;
int _rMask, _gMask, _bMask;
};
#endif // BACKENDS_GRAPHICS_ATARI_CURSOR_H
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