Kent Mein
209a2ede2c
#ifdef HAVE_CONFIG_H #include <config.h> #endif added to these files. Kent -- mein@cs.umn.edu
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/**
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* $Id$
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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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, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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*/
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#include "IMG_CanvasRGBA32.h"
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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IMG_CanvasRGBA32::IMG_CanvasRGBA32(TUns32 width, TUns32 height)
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: IMG_PixmapRGBA32(width, height)
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{
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}
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IMG_CanvasRGBA32::IMG_CanvasRGBA32(void* image, TUns32 width, TUns32 height, TUns32 rowBytes)
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: IMG_PixmapRGBA32(image, width, height, rowBytes)
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{
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}
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void IMG_CanvasRGBA32::blendPixmap(
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TUns32 xStart, TUns32 yStart, TUns32 xEnd, TUns32 yEnd,
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const IMG_PixmapRGBA32& pixmap)
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{
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// Determine visibility of the line
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IMG_Line l (xStart, yStart, xEnd, yEnd); // Line used for blending
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IMG_Rect bnds (0, 0, m_width, m_height); // Bounds of this pixmap
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TVisibility v = bnds.getVisibility(l);
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if (v == kNotVisible) return;
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if (v == kPartiallyVisible) {
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bnds.clip(l);
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}
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float numSteps = (((float)l.getLength()) / ((float)pixmap.getWidth() / 4));
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//numSteps *= 4;
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numSteps = numSteps ? numSteps : 1;
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float step = 0.f, stepSize = 1.f / ((float)numSteps);
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TInt32 x, y;
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for (TUns32 s = 0; s < numSteps; s++) {
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l.getPoint(step, x, y);
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IMG_PixmapRGBA32::blendPixmap((TUns32)x, (TUns32)y, pixmap);
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step += stepSize;
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}
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}
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void IMG_CanvasRGBA32::blendPixmap(
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float uStart, float vStart, float uEnd, float vEnd,
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const IMG_PixmapRGBA32& pixmap)
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{
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TUns32 xStart, yStart, xEnd, yEnd;
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getPixelAddress(uStart, vStart, xStart, yStart);
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getPixelAddress(uEnd, vEnd, xEnd, yEnd);
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blendPixmap(xStart, yStart, xEnd, yEnd, pixmap);
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}
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