File indexing completed on 2024-04-21 14:45:58

0001 /*
0002     SPDX-FileCopyrightText: 2015-2017 Pavel Mraz
0003 
0004     SPDX-FileCopyrightText: 2017 Jasem Mutlaq
0005 
0006     SPDX-License-Identifier: GPL-2.0-or-later
0007 */
0008 
0009 #pragma once
0010 
0011 #include <QImage>
0012 #include <QColor>
0013 #include <QPointF>
0014 
0015 #define MAX_BK_SCANLINES      32000
0016 
0017 typedef struct
0018 {
0019   int   scan[2];
0020   float uv[2][2];
0021 } bkScan_t;
0022 
0023 
0024 class ScanRender
0025 {
0026   public:
0027     explicit ScanRender(void);
0028     void setBilinearInterpolationEnabled(bool enable);
0029     bool isBilinearInterpolationEnabled(void);
0030     void resetScanPoly(int sx, int sy);
0031     void scanLine(int x1, int y1, int x2, int y2);
0032     void scanLine(int x1, int y1, int x2, int y2, float u1, float v1, float u2, float v2);
0033     void renderPolygon(QColor col, QImage *dst);
0034     void renderPolygon(QImage *dst, QImage *src);
0035     void renderPolygon(int interpolation, QPointF *pts, QImage *pDest, QImage *pSrc, QPointF *uv);
0036 
0037     void renderPolygonNI(QImage *dst, QImage *src);
0038     void renderPolygonBI(QImage *dst, QImage *src);
0039 
0040     void renderPolygonAlpha(QImage *dst, QImage *src);
0041     void renderPolygonAlphaBI(QImage *dst, QImage *src);
0042     void renderPolygonAlphaNI(QImage *dst, QImage *src);
0043 
0044     void renderPolygonAlpha(QColor col, QImage *dst);
0045     void setOpacity(float opacity);
0046 
0047 private:
0048     float    m_opacity { 1.0f };
0049     int      plMinY { 0 };
0050     int      plMaxY { 0 };
0051     int      m_sx { 0 };
0052     int      m_sy { 0 };
0053     bkScan_t scLR[MAX_BK_SCANLINES];
0054     bool     bBilinear { false };
0055 };