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84 lines
2.9 KiB
84 lines
2.9 KiB
/*
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* Copyright (c) 2004 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_F32_BASE_COLORSPACE_H_
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#define KIS_F32_BASE_COLORSPACE_H_
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#include <tqcolor.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 class is the base for all 32-bit float colorspaces.
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*/
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inline float UINT8_TO_FLOAT(uint c)
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{
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return static_cast<float>(c) / UINT8_MAX;
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}
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inline uint FLOAT_TO_UINT8(float c)
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{
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return static_cast<uint>(CLAMP(static_cast<int>(c * static_cast<int>(UINT8_MAX) + 0.5),
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static_cast<int>(UINT8_MIN), static_cast<int>(UINT8_MAX)));
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}
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inline uint FLOAT_TO_UINT16(float c)
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{
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return static_cast<uint>(CLAMP(static_cast<int>(c * static_cast<int>(UINT16_MAX) + 0.5),
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static_cast<int>(UINT16_MIN), static_cast<int>(UINT16_MAX)));
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}
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inline float FLOAT_BLEND(float a, float b, float alpha)
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{
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return (a - b) * alpha + b;
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}
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#define F32_OPACITY_OPAQUE 1.0f
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#define F32_OPACITY_TRANSPARENT 0.0f
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class KisF32BaseColorSpace : public KisAbstractColorSpace {
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public:
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KisF32BaseColorSpace(const KisID & id, DWORD cmType, icColorSpaceSignature colorSpaceSignature, KisColorSpaceFactoryRegistry * parent, KisProfile *p)
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: KisAbstractColorSpace(id, cmType, colorSpaceSignature, parent, p)
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{
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m_alphaSize = sizeof(float);
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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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virtual bool hasHighDynamicRange() const { return true; }
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};
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#endif // KIS_F32_BASE_COLORSPACE_H_
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