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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.
*
*/
#ifndef GRAPHICS_TRANSFORM_STRUCT_H
#define GRAPHICS_TRANSFORM_STRUCT_H
#include "common/rect.h"
namespace Graphics {
enum TSpriteBlendMode {
BLEND_UNKNOWN = -1,
BLEND_NORMAL = 0,
BLEND_ADDITIVE = 1,
BLEND_SUBTRACTIVE = 2,
BLEND_MULTIPLY = 3,
NUM_BLEND_MODES
};
/**
* Contains all the required information that define a transform.
* Same source sprite + same TransformStruct = Same resulting sprite.
* Has a number of overloaded constructors to accomodate various argument lists.
*/
const int32 kDefaultZoomX = 100;
const int32 kDefaultZoomY = 100;
const uint32 kDefaultRgbaMod = 0xFFFFFFFF;
const int32 kDefaultHotspotX = 0;
const int32 kDefaultHotspotY = 0;
const int32 kDefaultOffsetX = 0;
const int32 kDefaultOffsetY = 0;
const int32 kDefaultAngle = 0;
struct TransformStruct {
private:
void init(Common::Point zoom, uint32 angle, Common::Point hotspot, bool alphaDisable, TSpriteBlendMode blendMode, uint32 alpha, bool mirrorX, bool mirrorY, Common::Point offset);
public:
TransformStruct(int32 zoomX, int32 zoomY, uint32 angle, int32 hotspotX, int32 hotspotY, TSpriteBlendMode blendMode, uint32 alpha, bool mirrorX = false, bool mirrorY = false, int32 offsetX = 0, int32 offsetY = 0);
TransformStruct(float zoomX, float zoomY, uint32 angle, int32 hotspotX, int32 hotspotY, TSpriteBlendMode blendMode, uint32 alpha, bool mirrorX = false, bool mirrorY = false, int32 offsetX = 0, int32 offsetY = 0);
TransformStruct(int32 zoomX, int32 zoomY, TSpriteBlendMode blendMode, uint32 alpha, bool mirrorX = false, bool mirrorY = false);
TransformStruct(int32 zoomX, int32 zoomY, uint32 angle, int32 hotspotX = 0, int32 hotspotY = 0);
TransformStruct(int32 numTimesX, int32 numTimesY);
TransformStruct();
Common::Point _zoom; ///< Zoom; 100 = no zoom
Common::Point _hotspot; ///< Position of the hotspot
int32 _angle; ///< Rotation angle, in degrees
byte _flip; ///< Bitflag: see TransparentSurface::FLIP_XXX
bool _alphaDisable;
TSpriteBlendMode _blendMode;
uint32 _rgbaMod; ///< RGBa
Common::Point _offset;
int32 _numTimesX;
int32 _numTimesY;
bool getMirrorX() const;
bool getMirrorY() const;
bool operator==(const TransformStruct &compare) const {
return (compare._angle == _angle &&
compare._flip == _flip &&
compare._zoom == _zoom &&
compare._offset == _offset &&
compare._alphaDisable == _alphaDisable &&
compare._rgbaMod == _rgbaMod &&
compare._blendMode == _blendMode &&
compare._numTimesX == _numTimesX &&
compare._numTimesY == _numTimesY
);
}
bool operator!=(const TransformStruct &compare) const {
return !(compare == *this);
}
};
} // End of namespace Graphics
#endif
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