mirror of
https://github.com/scummvm/scummvm.git
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132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef BAGEL_BAGLIB_PAN_BITMAP_H
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#define BAGEL_BAGLIB_PAN_BITMAP_H
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#include "bagel/boflib/gfx/bitmap.h"
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#include "bagel/boflib/fixed.h"
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namespace Bagel {
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#define MAX_DIV_VIEW (12.8 / 3) // Ratio for 480x380 Screen
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#define DEF_FOV (360 / MAX_DIV_VIEW) // 1TO1 Paint FOV
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class CBagPanBitmap : public CBofBitmap {
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public:
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enum Direction {
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kDirNONE = 0x0,
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kDirUP = 0x01,
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kDirDOWN = 0x02,
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kDirLEFT = 0x04,
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kDirRIGHT = 0x08,
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kDirVIEW = 0x10
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};
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private:
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CBofRect _xCurrView; // Viewport Window size (0->Width-1,0->Height-1,1->Width+Width/4,1->Height)
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double _xFOVAngle; // Field of view in radians
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CBofPoint _xRotateRate; // Rate of rotation on increment left, right ...
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bool _bActiveScrolling; // True when there should be screen updates
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bool _bPanorama; // True when the bitmap is a 360 panorama
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Direction _xDirection; // Set direction for next update
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int _nCorrWidth; // Size of each correction band
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CBofFixed *_pCosineTable; // Lookup table for cosine values
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int _nNumDegrees; // Number of lookups in the cosine table
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bool _bIsValid; // Is the bmp a valid object
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void normalizeViewSize();
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void generateCosineTable();
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public:
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CBagPanBitmap(const char *pszFileName, CBofPalette *pPalette, const CBofRect &xViewSize = CBofRect());
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virtual ~CBagPanBitmap();
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bool isValid() const {
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return _bIsValid;
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}
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bool isPan() const {
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return _bPanorama;
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}
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ErrorCode paint(CBofBitmap *pBmp, CBofPoint xDstOffset = CBofPoint(0, 0));
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ErrorCode paintUncorrected(CBofBitmap *pBmp, CBofRect &dstRect);
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ErrorCode paintWarped(CBofBitmap *pBmp, const CBofRect &dstRect, const CBofRect &srcRect, int offset = 0, CBofBitmap *pSrcBmp = nullptr, const CBofRect &preSrcRect = CBofRect());
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CBofRect getWarpSrcRect();
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CBofPoint warpedPoint(CBofPoint &xPoint);
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const CBofRect getMaxView(CBofSize s = CBofSize(640, 480));
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void setCorrWidth(int nWidth, bool bUpdate = true);
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void rotateRight(int nXRotRate = 0);
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void rotateLeft(int nXRotRate = 0);
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void rotateUp(int nYRotRate = 0);
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void rotateDown(int nYRotRate = 0);
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Direction updateView();
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void setCurrView(const CBofRect &xCurrView);
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void offsetCurrView(const CBofPoint &xOffset);
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void setFOV(double degrees, bool bUpdate = true);
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void setViewSize(const CBofSize &xViewSize, bool bUpdate = true);
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CBofSize setUnityViewSize();
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double setUnityFOV();
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double getFOV() const {
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return _xFOVAngle;
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}
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const CBofSize getViewSize() const {
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return CBofPoint(_xCurrView.size());
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}
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const CBofRect getCurrView() const {
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return _xCurrView;
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}
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Direction getDirection() const {
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return _xDirection;
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}
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void setRotateRate(const CBofPoint &xRotRate) {
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_xRotateRate = xRotRate;
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}
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void setDirection(const Direction xDirection) {
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_xDirection = xDirection;
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}
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int getCorrWidth() {
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return _nCorrWidth;
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}
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void activateScrolling(bool val = true) {
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_bActiveScrolling = val;
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}
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void deActivateScrolling() {
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activateScrolling(false);
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}
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};
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} // namespace Bagel
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#endif
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