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81 lines
3.0 KiB
81 lines
3.0 KiB
/*
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* Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
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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 2 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef KIS_U16_BASE_COLORSPACE_H_
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#define KIS_U16_BASE_COLORSPACE_H_
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#include "kis_global.h"
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#include "kis_abstract_colorspace.h"
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#include "kis_integer_maths.h"
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/**
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* This is the base class for 16-bit/channel colorspaces with 16-bit alpha
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* channels. It defines a number of common methods, like handling 16-bit alpha
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* and up- and down-scaling of channels.
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*/
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class KisU16BaseColorSpace : public KisAbstractColorSpace {
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public:
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static const TQ_UINT16 U16_OPACITY_OPAQUE = UINT16_MAX;
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static const TQ_UINT16 U16_OPACITY_TRANSPARENT = UINT16_MIN;
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public:
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KisU16BaseColorSpace(const KisID & id, DWORD cmType, icColorSpaceSignature colorSpaceSignature,
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KisColorSpaceFactoryRegistry * parent,
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KisProfile *p)
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: KisAbstractColorSpace(id, cmType, colorSpaceSignature,
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parent,
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p)
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{
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m_alphaSize = sizeof(TQ_UINT16);
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};
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virtual TQ_UINT8 getAlpha(const TQ_UINT8 * pixel) const;
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virtual void setAlpha(TQ_UINT8 * pixels, TQ_UINT8 alpha, TQ_INT32 nPixels) const;
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virtual void multiplyAlpha(TQ_UINT8 * pixels, TQ_UINT8 alpha, TQ_INT32 nPixels);
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virtual void applyAlphaU8Mask(TQ_UINT8 * pixels, TQ_UINT8 * alpha, TQ_INT32 nPixels);
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virtual void applyInverseAlphaU8Mask(TQ_UINT8 * pixels, TQ_UINT8 * alpha, TQ_INT32 nPixels);
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virtual TQString channelValueText(const TQ_UINT8 *pixel, TQ_UINT32 channelIndex) const;
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virtual TQString normalisedChannelValueText(const TQ_UINT8 *pixel, TQ_UINT32 channelIndex) const;
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virtual TQ_UINT8 scaleToU8(const TQ_UINT8 * srcPixel, TQ_INT32 channelPos);
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virtual TQ_UINT16 scaleToU16(const TQ_UINT8 * srcPixel, TQ_INT32 channelPos);
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protected:
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// For Alpha Composite
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struct U16Mult {
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inline TQ_UINT16 operator()(const TQ_UINT16& a, const TQ_UINT16& b) const {
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return UINT16_MULT(a, b);
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}
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};
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struct Uint8ToU16 {
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inline TQ_UINT16 operator()(const TQ_UINT8 src) const {
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return UINT8_TO_UINT16(src);
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}
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};
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struct U16OpacityTest {
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inline bool operator()(const TQ_UINT16& opacity) const {
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return opacity != U16_OPACITY_TRANSPARENT;
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}
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};
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};
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#endif // KIS_U16_BASE_COLORSPACE_H_
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