147 lines
2.7 KiB
C++
147 lines
2.7 KiB
C++
/***************************************************************************
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qimage.cpp
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(c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>
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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 2, or (at your option)
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any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#include "qimage.h"
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void QImage::init()
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{
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img = NULL;
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bpl = 0;
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jt = NULL;
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inv = FALSE;
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}
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void QImage::check()
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{
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if (!img)
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return;
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if (GB_IMAGE_FMT_IS_SWAPPED(img->format))
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fprintf(stderr, "gb.image.effect: warning: unsupported image format: %s\n", IMAGE.FormatToString(img->format));
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inv = GB_IMAGE_FMT_IS_RGBA(img->format);
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}
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void QImage::create(int w, int h, bool t)
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{
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img = IMAGE.Create(w, h, t ? GB_IMAGE_BGRA : GB_IMAGE_BGRX, NULL);
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//GB.Ref(img);
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check();
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jumpTable();
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}
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QImage::QImage()
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{
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init();
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}
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QImage::QImage(const QSize &size, bool t)
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{
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init();
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create(size.width(), size.height(), t);
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}
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QImage::QImage(int w, int h, bool t)
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{
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init();
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create(w, h, t);
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}
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QImage::QImage(GB_IMAGE image)
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{
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init();
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img = (GB_IMG *)image;
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//GB.Ref(img);
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SYNCHRONIZE_IMAGE(img);
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check();
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jumpTable();
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}
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QImage::QImage(const QImage ©)
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{
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init();
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img = (GB_IMG *)copy.object();
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//GB.Ref(img);
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SYNCHRONIZE_IMAGE(img);
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check();
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}
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QImage::~QImage()
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{
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if (jt)
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{
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free(jt);
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jt = NULL;
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}
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}
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void QImage::release()
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{
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GB.Unref(POINTER(&img));
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img = NULL;
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}
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/*static inline uint invert(uint col)
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{
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return (col >> 24) | (col << 24) | ((col & 0x00FF0000) >> 8) | ((col & 0x0000FF00) << 8);
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}*/
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void QImage::invert()
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{
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uint i, n;
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uchar *p, t;
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n = width() * height();
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p = (uchar *)bits();
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for (i = 0; i < n; i++, p += 4)
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{
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t = p[0];
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p[0] = p[2];
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p[2] = t;
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}
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}
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uchar **QImage::jumpTable()
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{
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if (!jt && img->data)
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{
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int bpl = 4 * width();
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jt = (uchar**)malloc(height() * sizeof(uchar*));
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for (int i = 0; i < height(); i++)
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jt[i] = (uchar *)img->data + i * bpl;
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}
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return jt;
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}
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void QImage::invertPixels()
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{
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uint i, n;
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uint *p;
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n = width() * height();
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p = (uint *)bits();
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for (i = 0; i < n; i++)
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p[i] ^= 0xFFFFFF;
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}
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