mirror of
https://github.com/scummvm/scummvm.git
synced 2026-06-20 05:45:29 +00:00
Willem Jan Palenstijn
14cb1f09c0
This fixes two issues: * The rendering rectangle was not rotated, causing garbage to be drawn if the rotated rectangle did not fully cover the unrotated rectangle, or sprites to be clipped in the opposite case. * The order of mirror/scale/rotation operations was inconsistent. This commit does scaling first, followed by rotation. (This is only an issue because scaling is specified separately in X and Y directions.) For now only FIXMEs are added for mirroring.
54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
/* 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 WINTERMUTE_TRANSFORM_TOOLS_H
|
|
#define WINTERMUTE_TRANSFORM_TOOLS_H
|
|
|
|
#include "engines/wintermute/math/rect32.h"
|
|
#include "engines/wintermute/math/floatpoint.h"
|
|
#include "engines/wintermute/graphics/transform_struct.h"
|
|
|
|
namespace Wintermute {
|
|
|
|
class TransformTools {
|
|
public:
|
|
/**
|
|
* Basic transform (scale + rotate) for a single point
|
|
*/
|
|
static FloatPoint transformPoint(FloatPoint point, const float rotate, const Point32 &zoom, const bool mirrorX = false, const bool mirrorY = false);
|
|
|
|
/**
|
|
* @param &point the point on which the transform is to be applied
|
|
* @param rotate the angle in degrees
|
|
* @param &zoom zoom x,y in percent
|
|
* @param mirrorX flip along the vertical axis?
|
|
* @param mirrorY flip along the horizontal axis?
|
|
* @return the smallest rect that can contain the transformed sprite
|
|
* and, as a side-effect, "newHotspot" will tell you where the hotspot will
|
|
* have ended up in the new rect, for centering.
|
|
*/
|
|
static Rect32 newRect(const Rect32 &oldRect, const TransformStruct &transform, Point32 *newHotspot);
|
|
};
|
|
|
|
} // End of namespace Wintermute
|
|
#endif
|