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#ifndef __RIIMAGE_H
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#define __RIIMAGE_H
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/*------------------------------------------------------------------------
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*
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* OpenVG 1.1 Reference Implementation
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* -----------------------------------
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*
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* Copyright (c) 2007 The Khronos Group Inc.
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* Portions copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and /or associated documentation files
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* (the "Materials "), to deal in the Materials without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Materials,
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* and to permit persons to whom the Materials are furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Materials.
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*
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* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
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* THE USE OR OTHER DEALINGS IN THE MATERIALS.
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*
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*//**
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* \file
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* \brief Color and Image classes.
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* \note
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*//*-------------------------------------------------------------------*/
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#ifndef _OPENVG_H
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#include "VG/openvg.h"
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#endif
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#ifndef __RIMATH_H
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#include "riMath.h"
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#endif
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#ifndef __RIARRAY_H
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#include "riArray.h"
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#endif
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#include "sfAlphaRcp.h"
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#include "sfGammaLUT.h"
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#include "riUtils.h"
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//==============================================================================================
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namespace OpenVGRI
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{
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class VGContext;
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class DynamicBlitter;
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/*-------------------------------------------------------------------*//*!
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* \brief A class representing rectangles.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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class Rectangle
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{
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public:
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Rectangle() : x(0), y(0), width(0), height(0) {}
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Rectangle(int rx, int ry, int rw, int rh) : x(rx), y(ry), width(rw), height(rh) {}
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void intersect(const Rectangle& r)
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{
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if(width >= 0 && r.width >= 0 && height >= 0 && r.height >= 0)
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{
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int x1 = RI_INT_MIN(RI_INT_ADDSATURATE(x, width), RI_INT_ADDSATURATE(r.x, r.width));
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x = RI_INT_MAX(x, r.x);
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width = RI_INT_MAX(x1 - x, 0);
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int y1 = RI_INT_MIN(RI_INT_ADDSATURATE(y, height), RI_INT_ADDSATURATE(r.y, r.height));
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y = RI_INT_MAX(y, r.y);
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height = RI_INT_MAX(y1 - y, 0);
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}
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else
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{
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x = 0;
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y = 0;
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width = 0;
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height = 0;
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}
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}
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bool isEmpty() const { return width == 0 || height == 0; }
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int x;
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int y;
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int width;
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int height;
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};
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/*-------------------------------------------------------------------*//*!
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* \brief A class representing color for processing and converting it
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* to and from various surface formats.
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* \param
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* \return
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* \note
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*//*-------------------------------------------------------------------*/
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class Color
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{
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public:
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enum FormatSize
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{
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SIZE_1 = 0,
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SIZE_4 = 1,
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SIZE_8 = 2,
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SIZE_16 = 3,
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SIZE_24 = 4,
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SIZE_32 = 5
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};
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enum Shape
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{
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SHAPE_RGBA = 0,
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SHAPE_RGBX = 1,
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SHAPE_RGB = 2,
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SHAPE_LA = 3,
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SHAPE_L = 4,
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SHAPE_A = 5,
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SHAPE_ARGB = 6,
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SHAPE_XRGB = 7,
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SHAPE_AL = 8,
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SHAPE_BGRA = 9,
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SHAPE_BGRX = 10,
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SHAPE_BGR = 11,
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SHAPE_ABGR = 12,
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SHAPE_XBGR = 13
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};
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enum InternalFormat
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{
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lRGBA = 0,
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sRGBA = 1,
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lRGBA_PRE = 2,
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sRGBA_PRE = 3,
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lLA = 4,
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sLA = 5,
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lLA_PRE = 6,
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sLA_PRE = 7
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};
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enum FormatBits
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{
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NONLINEAR = (1<<0),
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PREMULTIPLIED = (1<<1),
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LUMINANCE = (1<<2)
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};
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struct SmallDescriptor
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{
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RIuint32 toUint32()
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{
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RIuint32 ret = 0;
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ret = (RIuint32)size;
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ret |= (RIuint32)shape << 3;
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ret |= (RIuint32)internalFormat << (3 + 4);
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return ret;
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}
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FormatSize size;
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Shape shape;
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InternalFormat internalFormat;
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};
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class Descriptor
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{
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public:
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Descriptor() {};
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RI_INLINE Descriptor(int dredBits, int dredShift, int dgreenBits, int dgreenShift, int dblueBits, int dblueShift, int dalphaBits, int dalphaShift, int dluminanceBits, int dluminanceShift, InternalFormat dinternalFormat, int dbpp, Shape shape);
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RI_INLINE bool isNonlinear() const { return (internalFormat & NONLINEAR) ? true : false; }
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RI_INLINE void setNonlinear(bool nonlinear);
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RI_INLINE bool isPremultiplied() const { return (internalFormat & PREMULTIPLIED) ? true : false; }
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RI_INLINE bool isLuminance() const { return (internalFormat & LUMINANCE) ? true : false; }
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RI_INLINE bool isAlphaOnly() const { return (alphaBits && (redBits+greenBits+blueBits+luminanceBits) == 0) ? true : false; }
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RI_INLINE bool isBW() const { return isLuminance() && (luminanceBits == 1); }
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RI_INLINE bool hasAlpha() const { return alphaBits > 0; }
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RI_INLINE bool operator==(const Descriptor& rhs) const;
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RI_INLINE bool isShiftConversionToLower(const Descriptor& rhs) const;
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RI_INLINE bool isShiftConversion(const Descriptor& rhs) const;
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RI_INLINE bool isZeroConversion(const Descriptor& rhs) const;
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RI_INLINE bool maybeUnsafe() const { return internalFormat & PREMULTIPLIED ? true : false; };
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static RI_INLINE RIuint32 crossConvertToLower(RIuint32 c, const Descriptor& src, const Descriptor& dst);
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void toSmallDescriptor(SmallDescriptor& smallDesc) const;
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RI_INLINE RIuint32 toIndex() const;
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static Descriptor getDummyDescriptor();
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Shape getShape() const;
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int redBits;
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int redShift;
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int greenBits;
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int greenShift;
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int blueBits;
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int blueShift;
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int alphaBits;
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int alphaShift;
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int luminanceBits;
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int luminanceShift;
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Shape shape;
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VGImageFormat vgFormat; // \note Storage only
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InternalFormat internalFormat;
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int bitsPerPixel;
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// Derived info:
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int bytesPerPixel;
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int maskBits;
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int maskShift;
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};
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RI_INLINE Color() : r(0.0f), g(0.0f), b(0.0f), a(0.0f), m_format(sRGBA_PRE) {}
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RI_INLINE Color(RIfloat cl, RIfloat ca, InternalFormat cs) : r(cl), g(cl), b(cl), a(ca), m_format(cs) { RI_ASSERT(cs == lLA || cs == sLA || cs == lLA_PRE || cs == sLA_PRE); }
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RI_INLINE Color(RIfloat cr, RIfloat cg, RIfloat cb, RIfloat ca, InternalFormat cs) : r(cr), g(cg), b(cb), a(ca), m_format(cs) { RI_ASSERT(cs == lRGBA || cs == sRGBA || cs == lRGBA_PRE || cs == sRGBA_PRE || cs == lLA || cs == sLA || cs == lLA_PRE || cs == sLA_PRE); }
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RI_INLINE Color(const Color& c) : r(c.r), g(c.g), b(c.b), a(c.a), m_format(c.m_format) {}
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RI_INLINE Color& operator=(const Color&c) { r = c.r; g = c.g; b = c.b; a = c.a; m_format = c.m_format; return *this; }
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RI_INLINE void operator*=(RIfloat f) { r *= f; g *= f; b *= f; a*= f; }
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RI_INLINE void operator+=(const Color& c1) { RI_ASSERT(m_format == c1.getInternalFormat()); r += c1.r; g += c1.g; b += c1.b; a += c1.a; }
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RI_INLINE void operator-=(const Color& c1) { RI_ASSERT(m_format == c1.getInternalFormat()); r -= c1.r; g -= c1.g; b -= c1.b; a -= c1.a; }
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void set(RIfloat cl, RIfloat ca, InternalFormat cs) { RI_ASSERT(cs == lLA || cs == sLA || cs == lLA_PRE || cs == sLA_PRE); r = cl; g = cl; b = cl; a = ca; m_format = cs; }
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void set(RIfloat cr, RIfloat cg, RIfloat cb, RIfloat ca, InternalFormat cs) { RI_ASSERT(cs == lRGBA || cs == sRGBA || cs == lRGBA_PRE || cs == sRGBA_PRE); r = cr; g = cg; b = cb; a = ca; m_format = cs; }
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void unpack(unsigned int inputData, const Descriptor& inputDesc);
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unsigned int pack(const Descriptor& outputDesc) const;
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RI_INLINE InternalFormat getInternalFormat() const { return m_format; }
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//clamps nonpremultiplied colors and alpha to [0,1] range, and premultiplied alpha to [0,1], colors to [0,a]
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void clamp() { a = RI_CLAMP(a,0.0f,1.0f); RIfloat u = (m_format & PREMULTIPLIED) ? a : (RIfloat)1.0f; r = RI_CLAMP(r,0.0f,u); g = RI_CLAMP(g,0.0f,u); b = RI_CLAMP(b,0.0f,u); }
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void convert(InternalFormat outputFormat);
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void premultiply() { if(!(m_format & PREMULTIPLIED)) { r *= a; g *= a; b *= a; m_format = (InternalFormat)(m_format | PREMULTIPLIED); } }
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void unpremultiply() { if(m_format & PREMULTIPLIED) { RIfloat ooa = (a != 0.0f) ? 1.0f/a : (RIfloat)0.0f; r *= ooa; g *= ooa; b *= ooa; m_format = (InternalFormat)(m_format & ~PREMULTIPLIED); } }
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void luminanceToRGB() { if(m_format & LUMINANCE) { RI_ASSERT(r == g && g == b); m_format = (InternalFormat)(m_format & ~LUMINANCE); } }
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bool isNonlinear() const { return (m_format & NONLINEAR) ? true : false; }
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bool isPremultiplied() const { return (m_format & PREMULTIPLIED) ? true : false; }
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bool isLuminance() const { return (m_format & LUMINANCE) ? true : false; }
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RI_INLINE void assertConsistency() const;
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// \note Why are these in the color class instead of descriptor?
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static VGImageFormat descriptorToVGImageFormat(const Descriptor& desc);
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RI_INLINE static Descriptor formatToDescriptorConst(VGImageFormat format);
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static Descriptor formatToDescriptor(VGImageFormat format);
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static bool isValidDescriptor(const Descriptor& desc);
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RIfloat r;
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RIfloat g;
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RIfloat b;
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RIfloat a;
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private:
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InternalFormat m_format;
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};
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RI_INLINE Color::Descriptor::Descriptor(int dredBits, int dredShift, int dgreenBits, int dgreenShift, int dblueBits, int dblueShift, int dalphaBits, int dalphaShift, int dluminanceBits, int dluminanceShift, InternalFormat dinternalFormat, int dbpp, Shape shape) :
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redBits(dredBits),
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redShift(dredShift),
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greenBits(dgreenBits),
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greenShift(dgreenShift),
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blueBits(dblueBits),
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blueShift(dblueShift),
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alphaBits(dalphaBits),
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alphaShift(dalphaShift),
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luminanceBits(dluminanceBits),
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luminanceShift(dluminanceShift),
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shape(shape),
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internalFormat(dinternalFormat),
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bitsPerPixel(dbpp)
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{
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bytesPerPixel = bitsPerPixel / 8;
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if (alphaBits)
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{
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maskBits = alphaBits;
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maskShift = alphaShift;
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}
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else if (!this->isLuminance())
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{
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maskBits = redBits;
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maskShift = redShift;
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}
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else
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{
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maskBits = luminanceBits;
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maskShift = luminanceShift;
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}
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RI_ASSERT(getShape() == shape);
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}
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RI_INLINE void Color::Descriptor::setNonlinear(bool nonlinear)
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{
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if (nonlinear)
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internalFormat = (InternalFormat)(((RIuint32)internalFormat)|NONLINEAR);
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else
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internalFormat = (InternalFormat)(((RIuint32)internalFormat)&(~NONLINEAR));
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296 |
}
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297 |
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/**
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* \brief Creates a pixel format descriptor out of VGImageFormat
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* \todo The formats without alpha were non-premultiplied in the reference
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* implementation, but wouldn't it make more sense to consider them
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* premultiplied? This would make sense at least when blitting to
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* windows, etc., where the output color should have the alpha
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* multiplied "in".
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*/
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RI_INLINE Color::Descriptor Color::formatToDescriptorConst(VGImageFormat format)
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{
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switch(format)
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{
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case VG_sRGBX_8888:
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return Color::Descriptor(8, 24, 8, 16, 8, 8, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_RGBX);
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case VG_sRGBA_8888:
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return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::sRGBA, 32, SHAPE_RGBA);
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case VG_sRGBA_8888_PRE:
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return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::sRGBA_PRE, 32, SHAPE_RGBA);
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case VG_sRGB_565:
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return Color::Descriptor(5, 11, 6, 5, 5, 0, 0, 0, 0, 0, Color::sRGBA, 16, SHAPE_RGB);
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case VG_sRGBA_5551:
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return Color::Descriptor(5, 11, 5, 6, 5, 1, 1, 0, 0, 0, Color::sRGBA, 16, SHAPE_RGBA);
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case VG_sRGBA_4444:
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return Color::Descriptor(4, 12, 4, 8, 4, 4, 4, 0, 0, 0, Color::sRGBA, 16, SHAPE_RGBA);
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case VG_sL_8:
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return Color::Descriptor(0, 0, 0, 0, 0, 0, 0, 0, 8, 0, Color::sLA, 8, SHAPE_L);
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case VG_lRGBX_8888:
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return Color::Descriptor(8, 24, 8, 16, 8, 8, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_RGBX);
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case VG_lRGBA_8888:
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return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::lRGBA, 32, SHAPE_RGBA);
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case VG_lRGBA_8888_PRE:
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return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::lRGBA_PRE, 32, SHAPE_RGBA);
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case VG_lL_8:
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return Color::Descriptor(0, 0, 0, 0, 0, 0, 0, 0, 8, 0, Color::lLA, 8, SHAPE_L);
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case VG_A_8:
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return Color::Descriptor(0, 0, 0, 0, 0, 0, 8, 0, 0, 0, Color::lRGBA, 8, SHAPE_A);
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case VG_BW_1:
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return Color::Descriptor(0, 0, 0, 0, 0, 0, 0, 0, 1, 0, Color::lLA, 1, SHAPE_L);
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case VG_A_1:
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return Color::Descriptor(0, 0, 0, 0, 0, 0, 1, 0, 0, 0, Color::lRGBA, 1, SHAPE_A);
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case VG_A_4:
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return Color::Descriptor(0, 0, 0, 0, 0, 0, 4, 0, 0, 0, Color::lRGBA, 4, SHAPE_A);
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/* {A,X}RGB channel ordering */
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case VG_sXRGB_8888:
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return Color::Descriptor(8, 16, 8, 8, 8, 0, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_XRGB);
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case VG_sARGB_8888:
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return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::sRGBA, 32, SHAPE_ARGB);
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case VG_sARGB_8888_PRE:
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|
347 |
return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::sRGBA_PRE, 32, SHAPE_ARGB);
|
|
348 |
case VG_sARGB_1555:
|
|
349 |
return Color::Descriptor(5, 10, 5, 5, 5, 0, 1, 15, 0, 0, Color::sRGBA, 16, SHAPE_ARGB);
|
|
350 |
case VG_sARGB_4444:
|
|
351 |
return Color::Descriptor(4, 8, 4, 4, 4, 0, 4, 12, 0, 0, Color::sRGBA, 16, SHAPE_ARGB);
|
|
352 |
case VG_lXRGB_8888:
|
|
353 |
return Color::Descriptor(8, 16, 8, 8, 8, 0, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_XRGB);
|
|
354 |
case VG_lARGB_8888:
|
|
355 |
return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::lRGBA, 32, SHAPE_ARGB);
|
|
356 |
case VG_lARGB_8888_PRE:
|
|
357 |
return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::lRGBA_PRE, 32, SHAPE_ARGB);
|
|
358 |
|
|
359 |
/* BGR{A,X} channel ordering */
|
|
360 |
case VG_sBGRX_8888:
|
|
361 |
return Color::Descriptor(8, 8, 8, 16, 8, 24, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_BGRX);
|
|
362 |
case VG_sBGRA_8888:
|
|
363 |
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::sRGBA, 32, SHAPE_BGRA);
|
|
364 |
case VG_sBGRA_8888_PRE:
|
|
365 |
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::sRGBA_PRE, 32, SHAPE_BGRA);
|
|
366 |
case VG_sBGR_565:
|
|
367 |
return Color::Descriptor(5, 0, 6, 5, 5, 11, 0, 0, 0, 0, Color::sRGBA, 16, SHAPE_BGR);
|
|
368 |
case VG_sBGRA_5551:
|
|
369 |
return Color::Descriptor(5, 1, 5, 6, 5, 11, 1, 0, 0, 0, Color::sRGBA, 16, SHAPE_BGRA);
|
|
370 |
case VG_sBGRA_4444:
|
|
371 |
return Color::Descriptor(4, 4, 4, 8, 4, 12, 4, 0, 0, 0, Color::sRGBA, 16, SHAPE_BGRA);
|
|
372 |
case VG_lBGRX_8888:
|
|
373 |
return Color::Descriptor(8, 8, 8, 16, 8, 24, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_BGRX);
|
|
374 |
case VG_lBGRA_8888:
|
|
375 |
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::lRGBA, 32, SHAPE_BGRA);
|
|
376 |
case VG_lBGRA_8888_PRE:
|
|
377 |
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::lRGBA_PRE, 32, SHAPE_BGRA);
|
|
378 |
|
|
379 |
/* {A,X}BGR channel ordering */
|
|
380 |
case VG_sXBGR_8888:
|
|
381 |
return Color::Descriptor(8, 0, 8, 8, 8, 16, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_XBGR);
|
|
382 |
case VG_sABGR_8888:
|
|
383 |
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::sRGBA, 32, SHAPE_ABGR);
|
|
384 |
case VG_sABGR_8888_PRE:
|
|
385 |
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::sRGBA_PRE, 32, SHAPE_ABGR);
|
|
386 |
case VG_sABGR_1555:
|
|
387 |
return Color::Descriptor(5, 0, 5, 5, 5, 10, 1, 15, 0, 0, Color::sRGBA, 16, SHAPE_ABGR);
|
|
388 |
case VG_sABGR_4444:
|
|
389 |
return Color::Descriptor(4, 0, 4, 4, 4, 8, 4, 12, 0, 0, Color::sRGBA, 16, SHAPE_ABGR);
|
|
390 |
case VG_lXBGR_8888:
|
|
391 |
return Color::Descriptor(8, 0, 8, 8, 8, 16, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_XBGR);
|
|
392 |
case VG_lABGR_8888:
|
|
393 |
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::lRGBA, 32, SHAPE_ABGR);
|
|
394 |
default:
|
|
395 |
//case VG_lABGR_8888_PRE:
|
|
396 |
RI_ASSERT(format == VG_lABGR_8888_PRE);
|
|
397 |
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::lRGBA_PRE, 32, SHAPE_ABGR);
|
|
398 |
}
|
|
399 |
}
|
|
400 |
|
|
401 |
RI_INLINE bool Color::Descriptor::operator==(const Descriptor& rhs) const
|
|
402 |
{
|
|
403 |
return memcmp(this, &rhs, sizeof(Descriptor)) ? false : true;
|
|
404 |
}
|
|
405 |
|
|
406 |
RI_INLINE bool Color::Descriptor::isZeroConversion(const Descriptor& rhs) const
|
|
407 |
{
|
|
408 |
return (shape == rhs.shape) &&
|
|
409 |
(internalFormat == rhs.internalFormat) &&
|
|
410 |
(redBits == rhs.redBits) &&
|
|
411 |
(greenBits == rhs.greenBits) &&
|
|
412 |
(blueBits == rhs.blueBits) &&
|
|
413 |
(alphaBits == rhs.alphaBits) &&
|
|
414 |
(luminanceBits == rhs.luminanceBits);
|
|
415 |
}
|
|
416 |
|
|
417 |
RI_INLINE bool Color::Descriptor::isShiftConversion(const Descriptor& rhs) const
|
|
418 |
{
|
|
419 |
// \note BW conversion is always forced to full at the moment.
|
|
420 |
if (isBW() != rhs.isBW())
|
|
421 |
return false;
|
|
422 |
|
|
423 |
return (isPremultiplied() == rhs.isPremultiplied())
|
|
424 |
&& (isNonlinear() == rhs.isNonlinear())
|
|
425 |
&& (isLuminance() == rhs.isLuminance());
|
|
426 |
}
|
|
427 |
|
|
428 |
RI_INLINE bool Color::Descriptor::isShiftConversionToLower(const Descriptor& rhs) const
|
|
429 |
{
|
|
430 |
// \note BW conversion is always forced to full at the moment.
|
|
431 |
if (isBW() != rhs.isBW())
|
|
432 |
return false;
|
|
433 |
// \note Mask bits are not checked because they are derived information.
|
|
434 |
return (isShiftConversion(rhs)
|
|
435 |
&& (rhs.redBits <= redBits)
|
|
436 |
&& (rhs.greenBits <= greenBits)
|
|
437 |
&& (rhs.blueBits <= blueBits)
|
|
438 |
&& (rhs.alphaBits <= alphaBits)
|
|
439 |
&& (rhs.luminanceBits <= luminanceBits));
|
|
440 |
|
|
441 |
}
|
|
442 |
|
|
443 |
/**
|
|
444 |
* \brief In-place conversion of packed color to lower bit-depth
|
|
445 |
* \param c Input packed color
|
|
446 |
* \param src Source color descriptor
|
|
447 |
* \param dst Destination color descriptor
|
|
448 |
*/
|
|
449 |
RI_INLINE RIuint32 Color::Descriptor::crossConvertToLower(RIuint32 c, const Descriptor& src, const Descriptor& dst)
|
|
450 |
{
|
|
451 |
RIuint32 r = 0;
|
|
452 |
|
|
453 |
RI_ASSERT(dst.redBits <= src.redBits);
|
|
454 |
RI_ASSERT(dst.greenBits <= src.greenBits);
|
|
455 |
RI_ASSERT(dst.blueBits <= src.blueBits);
|
|
456 |
RI_ASSERT(dst.alphaBits <= src.alphaBits);
|
|
457 |
|
|
458 |
if (src.isLuminance())
|
|
459 |
{
|
|
460 |
RI_ASSERT(dst.isLuminance());
|
|
461 |
r = ((c >> (src.luminanceShift + src.luminanceBits - dst.luminanceBits)) & ((1u<<dst.luminanceBits)-1)) << dst.luminanceShift;
|
|
462 |
} else
|
|
463 |
{
|
|
464 |
r = ((c >> (src.redShift + src.redBits - dst.redBits)) & ((1u<<dst.redBits)-1)) << dst.redShift;
|
|
465 |
r |= ((c >> (src.greenShift + src.greenBits - dst.greenBits)) & ((1u<<dst.greenBits)-1)) << dst.greenShift;
|
|
466 |
r |= ((c >> (src.blueShift + src.blueBits - dst.blueBits)) & ((1u<<dst.blueBits)-1)) << dst.blueShift;
|
|
467 |
}
|
|
468 |
|
|
469 |
if (src.hasAlpha())
|
|
470 |
{
|
|
471 |
if (dst.hasAlpha())
|
|
472 |
r |= ((c >> (src.alphaShift + src.alphaBits - dst.alphaBits)) & ((1u<<dst.alphaBits)-1)) << dst.alphaShift;
|
|
473 |
else
|
|
474 |
{
|
|
475 |
// Make sure that the alpha is applied to the color if doing only a shift conversion.
|
|
476 |
RI_ASSERT(src.isPremultiplied() == dst.isPremultiplied());
|
|
477 |
}
|
|
478 |
}
|
|
479 |
|
|
480 |
return r;
|
|
481 |
}
|
|
482 |
|
|
483 |
RI_INLINE RIuint32 Color::Descriptor::toIndex() const
|
|
484 |
{
|
|
485 |
SmallDescriptor smallDesc;
|
|
486 |
toSmallDescriptor(smallDesc);
|
|
487 |
return smallDesc.toUint32();
|
|
488 |
}
|
|
489 |
|
|
490 |
RI_INLINE Color operator*(const Color& c, RIfloat f) { return Color(c.r*f, c.g*f, c.b*f, c.a*f, c.getInternalFormat()); }
|
|
491 |
RI_INLINE Color operator*(RIfloat f, const Color& c) { return Color(c.r*f, c.g*f, c.b*f, c.a*f, c.getInternalFormat()); }
|
|
492 |
RI_INLINE Color operator+(const Color& c0, const Color& c1) { RI_ASSERT(c0.getInternalFormat() == c1.getInternalFormat()); return Color(c0.r+c1.r, c0.g+c1.g, c0.b+c1.b, c0.a+c1.a, c0.getInternalFormat()); }
|
|
493 |
RI_INLINE Color operator-(const Color& c0, const Color& c1) { RI_ASSERT(c0.getInternalFormat() == c1.getInternalFormat()); return Color(c0.r-c1.r, c0.g-c1.g, c0.b-c1.b, c0.a-c1.a, c0.getInternalFormat()); }
|
|
494 |
RI_INLINE void Color::assertConsistency() const
|
|
495 |
{
|
|
496 |
RI_ASSERT(r >= 0.0f && r <= 1.0f);
|
|
497 |
RI_ASSERT(g >= 0.0f && g <= 1.0f);
|
|
498 |
RI_ASSERT(b >= 0.0f && b <= 1.0f);
|
|
499 |
RI_ASSERT(a >= 0.0f && a <= 1.0f);
|
|
500 |
RI_ASSERT(!isPremultiplied() || (r <= a && g <= a && b <= a)); //premultiplied colors must have color channels less than or equal to alpha
|
|
501 |
RI_ASSERT((isLuminance() && r == g && r == b) || !isLuminance()); //if luminance, r=g=b
|
|
502 |
}
|
|
503 |
|
|
504 |
class IntegerColor
|
|
505 |
{
|
|
506 |
public:
|
|
507 |
|
|
508 |
IntegerColor() {r = g = b = a = 0;}
|
|
509 |
IntegerColor(const Color& color);
|
|
510 |
|
|
511 |
RI_INLINE IntegerColor(RIuint32 packedColor, const Color::Descriptor& desc) { fromPackedColor(packedColor, desc); }
|
|
512 |
RI_INLINE IntegerColor(RIuint32 cr, RIuint32 cg, RIuint32 cb, RIuint32 ca) { r = cr; g = cg; b = cb; a = ca; }
|
|
513 |
RI_INLINE void asFixedPoint(const Color& color);
|
|
514 |
RI_INLINE void fromPackedColor(RIuint32 packedColor, const Color::Descriptor& desc);
|
|
515 |
RI_INLINE void expandColor(const Color::Descriptor& desc);
|
|
516 |
RI_INLINE void truncateColor(const Color::Descriptor& desc);
|
|
517 |
RI_INLINE void clampToAlpha();
|
|
518 |
RI_INLINE RIuint32 getPackedColor(const Color::Descriptor& desc) const;
|
|
519 |
RI_INLINE RIuint32 getPackedMaskColor(const Color::Descriptor& desc) const;
|
|
520 |
RI_INLINE void premultiply(bool luminance = false);
|
|
521 |
RI_INLINE void unpremultiply(bool luminance = false);
|
|
522 |
//RI_INLINE void linearToGamma(bool luminance, bool premultipliedIn, bool premultipliedOut);
|
|
523 |
RI_INLINE void linearToGamma(bool luminance = false);
|
|
524 |
RI_INLINE void gammaToLinear(bool luminance = false);
|
|
525 |
RI_INLINE void fromPackedMask(RIuint32 packedColor, const Color::Descriptor& desc);
|
|
526 |
RI_INLINE void expandMask(const Color::Descriptor& desc);
|
|
527 |
RI_INLINE void truncateMask(const Color::Descriptor& desc);
|
|
528 |
RI_INLINE void fullLuminanceToRGB(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut);
|
|
529 |
RI_INLINE void fullRGBToLuminance(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut);
|
|
530 |
RI_INLINE void luminanceToRGB();
|
|
531 |
RI_INLINE void rgbToLuminance();
|
|
532 |
RI_INLINE void convertToFrom(const Color::Descriptor& dst, const Color::Descriptor& src, bool srcIsMask);
|
|
533 |
|
|
534 |
RI_INLINE static IntegerColor linearBlendNS(const IntegerColor& c0, const IntegerColor& c1, int k);
|
|
535 |
|
|
536 |
RIuint32 r;
|
|
537 |
RIuint32 g;
|
|
538 |
RIuint32 b;
|
|
539 |
RIuint32 a;
|
|
540 |
|
|
541 |
};
|
|
542 |
|
|
543 |
/**
|
|
544 |
* \brief Blend two colors linearly. The output will not be scaled into original range.
|
|
545 |
* \param k Blend coefficient. Must be [0..255] for correct results.
|
|
546 |
* \todo Parameterize against bits in k? To perform well, that setup must be compiled rt.
|
|
547 |
*/
|
|
548 |
RI_INLINE IntegerColor IntegerColor::linearBlendNS(const IntegerColor& c0, const IntegerColor& c1, int k)
|
|
549 |
{
|
|
550 |
RI_ASSERT(k >= 0 && k <= 255);
|
|
551 |
IntegerColor ret;
|
|
552 |
RIuint32 ik = 255 - k;
|
|
553 |
|
|
554 |
ret.r = ik * c0.r + k * c1.r;
|
|
555 |
ret.g = ik * c0.g + k * c1.g;
|
|
556 |
ret.b = ik * c0.b + k * c1.b;
|
|
557 |
ret.a = ik * c0.a + k * c1.a;
|
|
558 |
|
|
559 |
return ret;
|
|
560 |
}
|
|
561 |
|
|
562 |
/**
|
|
563 |
* \note Assumes that each individual component is in proper range (usually indicated by the
|
|
564 |
* corresponding shift).
|
|
565 |
*/
|
|
566 |
RI_INLINE RIuint32 packRGBAInteger(RIuint32 cr, int rs, RIuint32 cg, int gs, RIuint32 cb, int bs, RIuint32 ca, int as)
|
|
567 |
{
|
|
568 |
return (cr << rs) | (cg << gs) | (cb << bs) | (ca << as);
|
|
569 |
}
|
|
570 |
|
|
571 |
/**
|
|
572 |
* \brief Packs a color into RIuint32.
|
|
573 |
* \note The color must have been truncated to contain correct amount of bits per channel
|
|
574 |
* \note This function is efficient only if runtime compilation is used.
|
|
575 |
*/
|
|
576 |
RI_INLINE RIuint32 IntegerColor::getPackedColor(const Color::Descriptor& desc) const
|
|
577 |
{
|
|
578 |
RIuint32 res = 0;
|
|
579 |
if (desc.luminanceBits)
|
|
580 |
{
|
|
581 |
RI_ASSERT(desc.redBits == 0 && desc.greenBits == 0 && desc.blueBits == 0);
|
|
582 |
RI_ASSERT(r < (1u<<desc.luminanceBits));
|
|
583 |
res = r << desc.luminanceShift;
|
|
584 |
}
|
|
585 |
else if (desc.redBits)
|
|
586 |
{
|
|
587 |
RI_ASSERT(r < (1u<<desc.redBits));
|
|
588 |
res = r << desc.redShift;
|
|
589 |
if (desc.greenBits)
|
|
590 |
{
|
|
591 |
RI_ASSERT(desc.blueBits);
|
|
592 |
RI_ASSERT(g < (1u<<desc.greenBits));
|
|
593 |
RI_ASSERT(b < (1u<<desc.blueBits));
|
|
594 |
res |= g << desc.greenShift;
|
|
595 |
res |= b << desc.blueShift;
|
|
596 |
}
|
|
597 |
}
|
|
598 |
|
|
599 |
if (desc.alphaBits)
|
|
600 |
{
|
|
601 |
RI_ASSERT(a < (1u<<desc.alphaBits));
|
|
602 |
res |= a << desc.alphaShift;
|
|
603 |
}
|
|
604 |
|
|
605 |
return res;
|
|
606 |
}
|
|
607 |
|
|
608 |
RI_INLINE RIuint32 IntegerColor::getPackedMaskColor(const Color::Descriptor& desc) const
|
|
609 |
{
|
|
610 |
if (desc.alphaBits)
|
|
611 |
return packRGBAInteger(0, desc.redShift, 0, desc.greenShift, 0, desc.blueShift, a, desc.alphaShift);
|
|
612 |
else if(desc.redBits)
|
|
613 |
return packRGBAInteger(a, desc.redShift, 0, desc.greenShift, 0, desc.blueShift, 0, desc.alphaShift);
|
|
614 |
else
|
|
615 |
{
|
|
616 |
RI_ASSERT(desc.luminanceBits);
|
|
617 |
return packRGBAInteger(a, desc.luminanceBits, 0, desc.greenShift, 0, desc.blueShift, 0, desc.alphaShift);
|
|
618 |
}
|
|
619 |
|
|
620 |
}
|
|
621 |
|
|
622 |
RI_INLINE void IntegerColor::premultiply(bool luminance)
|
|
623 |
{
|
|
624 |
// \todo Check the round!!!
|
|
625 |
RIuint32 fxa = a + (a>>7);
|
|
626 |
r = (r * fxa); r = (r + (1<<7))>>8;
|
|
627 |
|
|
628 |
if (!luminance)
|
|
629 |
{
|
|
630 |
g = (g * fxa); g = (g + (1<<7))>>8;
|
|
631 |
b = (b * fxa); b = (b + (1<<7))>>8;
|
|
632 |
}
|
|
633 |
}
|
|
634 |
|
|
635 |
RI_INLINE void IntegerColor::unpremultiply(bool luminance)
|
|
636 |
{
|
|
637 |
RI_ASSERT(a <= 255);
|
|
638 |
|
|
639 |
RIuint32 rcp = sc_alphaRcp[a];
|
|
640 |
r = (r * rcp) >> 8;
|
|
641 |
|
|
642 |
if (!luminance)
|
|
643 |
{
|
|
644 |
g = (g * rcp) >> 8;
|
|
645 |
b = (b * rcp) >> 8;
|
|
646 |
}
|
|
647 |
}
|
|
648 |
|
|
649 |
RI_INLINE void IntegerColor::linearToGamma(bool luminance)
|
|
650 |
{
|
|
651 |
RI_ASSERT(r <= 255 && g <= 255 && b <= 255 && a <= 255);
|
|
652 |
|
|
653 |
r = sc_lRGB_to_sRGB[r];
|
|
654 |
|
|
655 |
if (!luminance)
|
|
656 |
{
|
|
657 |
g = sc_lRGB_to_sRGB[g];
|
|
658 |
b = sc_lRGB_to_sRGB[b];
|
|
659 |
}
|
|
660 |
|
|
661 |
// \note Alpha is _not_ converted and it must be considered linear always
|
|
662 |
}
|
|
663 |
|
|
664 |
RI_INLINE void IntegerColor::gammaToLinear(bool luminance)
|
|
665 |
{
|
|
666 |
RI_ASSERT(r <= 255 && g <= 255 && b <= 255 && a <= 255);
|
|
667 |
|
|
668 |
r = sc_sRGB_to_lRGB[r];
|
|
669 |
if (!luminance)
|
|
670 |
{
|
|
671 |
g = sc_sRGB_to_lRGB[g];
|
|
672 |
b = sc_sRGB_to_lRGB[b];
|
|
673 |
}
|
|
674 |
|
|
675 |
// \note Alpha is _not_ converted and it must be considered linear always
|
|
676 |
}
|
|
677 |
|
|
678 |
RI_INLINE void IntegerColor::asFixedPoint(const Color& color)
|
|
679 |
{
|
|
680 |
r = (RIuint32)(color.r * 256.0f + 0.5f);
|
|
681 |
g = (RIuint32)(color.g * 256.0f + 0.5f);
|
|
682 |
b = (RIuint32)(color.b * 256.0f + 0.5f);
|
|
683 |
a = (RIuint32)(color.a * 256.0f + 0.5f);
|
|
684 |
}
|
|
685 |
|
|
686 |
RI_INLINE void IntegerColor::fromPackedColor(RIuint32 packedColor, const Color::Descriptor& desc)
|
|
687 |
{
|
|
688 |
/* \note Expand MUST be done separately! */
|
|
689 |
|
|
690 |
if (desc.luminanceBits)
|
|
691 |
{
|
|
692 |
r = (packedColor >> desc.luminanceShift) & ((1u << desc.luminanceBits)-1);
|
|
693 |
g = b = r;
|
|
694 |
}
|
|
695 |
else
|
|
696 |
{
|
|
697 |
r = (packedColor >> desc.redShift) & ((1u << desc.redBits)-1);
|
|
698 |
g = (packedColor >> desc.greenShift) & ((1u << desc.greenBits)-1);
|
|
699 |
b = (packedColor >> desc.blueShift) & ((1u << desc.blueBits)-1);
|
|
700 |
}
|
|
701 |
|
|
702 |
if (desc.alphaBits)
|
|
703 |
a = (packedColor >> desc.alphaShift) & ((1u << desc.alphaBits)-1);
|
|
704 |
else
|
|
705 |
a = 255;
|
|
706 |
}
|
|
707 |
|
|
708 |
/**
|
|
709 |
* \brief Expand color to larger (or same) bit depth as in the OpenVG specification.
|
|
710 |
* \todo 1 and 2 bpp!
|
|
711 |
*/
|
|
712 |
RI_INLINE RIuint32 expandComponent(RIuint32 c, RIuint32 srcBits)
|
|
713 |
{
|
|
714 |
const RIuint32 destBits = 8;
|
|
715 |
RI_ASSERT(destBits >= srcBits);
|
|
716 |
|
|
717 |
if (!srcBits) return 0;
|
|
718 |
|
|
719 |
if (srcBits == destBits) return c;
|
|
720 |
|
|
721 |
switch (srcBits)
|
|
722 |
{
|
|
723 |
case 6:
|
|
724 |
return (c << 2) | (c >> 4);
|
|
725 |
case 5:
|
|
726 |
return (c << 3) | (c >> 2);
|
|
727 |
case 4:
|
|
728 |
return (c << 4) | c;
|
|
729 |
case 2:
|
|
730 |
return c | (c << 2) | (c << 4) | (c << 6);
|
|
731 |
default:
|
|
732 |
RI_ASSERT(srcBits == 1);
|
|
733 |
if (c) return 0xff;
|
|
734 |
return 0;
|
|
735 |
}
|
|
736 |
}
|
|
737 |
|
|
738 |
/**
|
|
739 |
* \brief Expands integer color representation to internal format (8-bits per component atm.).
|
|
740 |
* \todo Do nothing when bits == 8.
|
|
741 |
*/
|
|
742 |
RI_INLINE void IntegerColor::expandColor(const Color::Descriptor& desc)
|
|
743 |
{
|
|
744 |
if (desc.luminanceBits)
|
|
745 |
{
|
|
746 |
r = expandComponent(r, desc.luminanceBits);
|
|
747 |
g = b = r;
|
|
748 |
a = 255;
|
|
749 |
} else
|
|
750 |
{
|
|
751 |
if (desc.redBits < 8 || desc.luminanceBits < 8)
|
|
752 |
r = expandComponent(r, desc.redBits);
|
|
753 |
if (desc.greenBits < 8)
|
|
754 |
g = expandComponent(g, desc.greenBits);
|
|
755 |
if (desc.blueBits < 8)
|
|
756 |
b = expandComponent(b, desc.blueBits);
|
|
757 |
}
|
|
758 |
|
|
759 |
if (desc.alphaBits && desc.alphaBits < 8)
|
|
760 |
a = expandComponent(a, desc.alphaBits);
|
|
761 |
|
|
762 |
if (desc.isAlphaOnly())
|
|
763 |
{
|
|
764 |
if (!desc.isPremultiplied())
|
|
765 |
r = g = b = 255;
|
|
766 |
else
|
|
767 |
r = g = b = a;
|
|
768 |
}
|
|
769 |
}
|
|
770 |
|
|
771 |
/**
|
|
772 |
* \brief Convert IntegerColor components to destination bitdepth (from internal) by
|
|
773 |
* shifting. Rounding does not take place.
|
|
774 |
*/
|
|
775 |
RI_INLINE void IntegerColor::truncateColor(const Color::Descriptor& desc)
|
|
776 |
{
|
|
777 |
if (desc.luminanceBits)
|
|
778 |
{
|
|
779 |
RI_ASSERT(desc.redBits == 0 && desc.greenBits == 0 && desc.blueBits == 0);
|
|
780 |
if (desc.luminanceBits == 1)
|
|
781 |
{
|
|
782 |
// Round the 1-bit case a bit better?
|
|
783 |
r = (r + 128)>>8;
|
|
784 |
} else if (desc.luminanceBits < 8)
|
|
785 |
r >>= (8 - desc.luminanceBits);
|
|
786 |
}
|
|
787 |
else
|
|
788 |
{
|
|
789 |
if (desc.redBits < 8)
|
|
790 |
r >>= (8 - desc.redBits);
|
|
791 |
if (desc.greenBits < 8)
|
|
792 |
g >>= (8 - desc.greenBits);
|
|
793 |
if (desc.blueBits < 8)
|
|
794 |
b >>= (8 - desc.blueBits);
|
|
795 |
}
|
|
796 |
|
|
797 |
if (desc.alphaBits < 8)
|
|
798 |
{
|
|
799 |
if (desc.alphaBits == 1)
|
|
800 |
a = (a+128)>>8;
|
|
801 |
else
|
|
802 |
a >>= (8 - desc.alphaBits);
|
|
803 |
}
|
|
804 |
}
|
|
805 |
|
|
806 |
RI_INLINE void IntegerColor::truncateMask(const Color::Descriptor& desc)
|
|
807 |
{
|
|
808 |
if (desc.redBits < 8 || desc.luminanceBits < 8)
|
|
809 |
r >>= (8 - desc.maskBits);
|
|
810 |
if (desc.greenBits < 8)
|
|
811 |
g >>= (8 - desc.maskBits);
|
|
812 |
if (desc.blueBits < 8)
|
|
813 |
b >>= (8 - desc.maskBits);
|
|
814 |
if (desc.alphaBits < 8)
|
|
815 |
a >>= (8 - desc.maskBits);
|
|
816 |
}
|
|
817 |
|
|
818 |
RI_INLINE void IntegerColor::clampToAlpha()
|
|
819 |
{
|
|
820 |
if (r > a) r = a;
|
|
821 |
if (g > a) g = a;
|
|
822 |
if (b > a) b = a;
|
|
823 |
}
|
|
824 |
|
|
825 |
RI_INLINE void IntegerColor::fromPackedMask(RIuint32 packedMask, const Color::Descriptor& desc)
|
|
826 |
{
|
|
827 |
RI_ASSERT(desc.maskBits);
|
|
828 |
a = (packedMask >> desc.maskShift) & ((1u << desc.maskBits)-1);
|
|
829 |
}
|
|
830 |
|
|
831 |
RI_INLINE void IntegerColor::expandMask(const Color::Descriptor& desc)
|
|
832 |
{
|
|
833 |
a = expandComponent(a, desc.maskBits);
|
|
834 |
r = g = b = a;
|
|
835 |
}
|
|
836 |
|
|
837 |
#if 0
|
|
838 |
RI_INLINE void IntegerColor::truncateMask(const Color::Descriptor& desc)
|
|
839 |
{
|
|
840 |
a >>= (8 - desc.maskBits);
|
|
841 |
}
|
|
842 |
#endif
|
|
843 |
|
|
844 |
RI_INLINE void IntegerColor::fullLuminanceToRGB(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut)
|
|
845 |
{
|
|
846 |
if (premultipliedIn)
|
|
847 |
unpremultiply();
|
|
848 |
|
|
849 |
luminanceToRGB();
|
|
850 |
|
|
851 |
if (gammaIn != gammaOut)
|
|
852 |
{
|
|
853 |
if (gammaIn)
|
|
854 |
gammaToLinear();
|
|
855 |
else
|
|
856 |
linearToGamma();
|
|
857 |
}
|
|
858 |
|
|
859 |
if (premultipliedOut)
|
|
860 |
premultiply();
|
|
861 |
|
|
862 |
}
|
|
863 |
|
|
864 |
RI_INLINE void IntegerColor::fullRGBToLuminance(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut)
|
|
865 |
{
|
|
866 |
if (premultipliedIn)
|
|
867 |
unpremultiply();
|
|
868 |
|
|
869 |
if (gammaIn)
|
|
870 |
gammaToLinear();
|
|
871 |
|
|
872 |
rgbToLuminance();
|
|
873 |
|
|
874 |
if (gammaOut)
|
|
875 |
linearToGamma();
|
|
876 |
|
|
877 |
if (premultipliedOut)
|
|
878 |
premultiply();
|
|
879 |
|
|
880 |
}
|
|
881 |
|
|
882 |
|
|
883 |
// \todo This should not be needed (only r-channel is used anyway)
|
|
884 |
RI_INLINE void IntegerColor::luminanceToRGB()
|
|
885 |
{
|
|
886 |
g = b = r;
|
|
887 |
}
|
|
888 |
|
|
889 |
// \todo Only write to R!
|
|
890 |
RI_INLINE void IntegerColor::rgbToLuminance()
|
|
891 |
{
|
|
892 |
enum { Rx = 871, Gx = 2929, Bx = 296, Bits = 12 };
|
|
893 |
//enum { Rx = 54, Gx = 183, Bx = 18, Bits = 8 };
|
|
894 |
RIuint32 l = Rx * r + Gx * g + Bx * b;
|
|
895 |
r = g = b = l >> Bits;
|
|
896 |
}
|
|
897 |
|
|
898 |
#if 0
|
|
899 |
RI_INLINE void IntegerColor::convertFromInternal(const Color::Descriptor& dst)
|
|
900 |
{
|
|
901 |
}
|
|
902 |
#endif
|
|
903 |
|
|
904 |
/**
|
|
905 |
* \brief Convert color from one format to another using integer operations.
|
|
906 |
* \note Currently expands the color to intermediate format first (8 bits
|
|
907 |
* per component.
|
|
908 |
*/
|
|
909 |
RI_INLINE void IntegerColor::convertToFrom(const Color::Descriptor& dst, const Color::Descriptor& src, bool srcIsMask)
|
|
910 |
{
|
|
911 |
if (src.isZeroConversion(dst))
|
|
912 |
return;
|
|
913 |
|
|
914 |
if (src.isShiftConversionToLower(dst))
|
|
915 |
{
|
|
916 |
if (dst.luminanceBits)
|
|
917 |
{
|
|
918 |
if (dst.luminanceBits == 1)
|
|
919 |
{
|
|
920 |
RI_ASSERT(src.luminanceBits == 8);
|
|
921 |
r = (r + 128)>>8;
|
|
922 |
}
|
|
923 |
else
|
|
924 |
r = r >> (src.luminanceBits - dst.luminanceBits);
|
|
925 |
} else
|
|
926 |
{
|
|
927 |
r = r >> (src.redBits - dst.redBits);
|
|
928 |
g = g >> (src.greenBits - dst.greenBits);
|
|
929 |
b = b >> (src.blueBits - dst.blueBits);
|
|
930 |
}
|
|
931 |
if (dst.alphaBits)
|
|
932 |
{
|
|
933 |
//a = (a+128)>>8;
|
|
934 |
if (dst.alphaBits == 1)
|
|
935 |
a = (a+(1<<(src.alphaBits-1)))>>src.alphaBits;
|
|
936 |
else
|
|
937 |
a = a >> (src.alphaBits - dst.alphaBits);
|
|
938 |
}
|
|
939 |
|
|
940 |
return;
|
|
941 |
}
|
|
942 |
|
|
943 |
if (!srcIsMask)
|
|
944 |
expandColor(src);
|
|
945 |
else
|
|
946 |
expandMask(src);
|
|
947 |
|
|
948 |
|
|
949 |
if (dst.isLuminance() != src.isLuminance())
|
|
950 |
{
|
|
951 |
if (src.isLuminance())
|
|
952 |
fullLuminanceToRGB(src.isPremultiplied(), src.isNonlinear(), dst.isPremultiplied(), dst.isNonlinear());
|
|
953 |
else
|
|
954 |
fullRGBToLuminance(src.isPremultiplied(), src.isNonlinear(), dst.isPremultiplied(), dst.isNonlinear());
|
|
955 |
}
|
|
956 |
else if (dst.isNonlinear() != src.isNonlinear())
|
|
957 |
{
|
|
958 |
// No luminance/rgb change.
|
|
959 |
// Change of gamma requires unpremultiplication:
|
|
960 |
if (src.isPremultiplied() && !(src.isAlphaOnly()))
|
|
961 |
unpremultiply();
|
|
962 |
|
|
963 |
if (src.isNonlinear())
|
|
964 |
gammaToLinear(src.isLuminance());
|
|
965 |
else
|
|
966 |
linearToGamma(src.isLuminance());
|
|
967 |
|
|
968 |
if (dst.isPremultiplied() && !(dst.isAlphaOnly()))
|
|
969 |
premultiply();
|
|
970 |
}
|
|
971 |
else
|
|
972 |
if ((dst.isPremultiplied() != src.isPremultiplied()) && !(dst.isAlphaOnly() || dst.isAlphaOnly()))
|
|
973 |
{
|
|
974 |
// \todo Make sure non-alpha formats are properly handled.
|
|
975 |
if (src.isPremultiplied())
|
|
976 |
unpremultiply(dst.isLuminance());
|
|
977 |
else
|
|
978 |
premultiply(dst.isLuminance());
|
|
979 |
}
|
|
980 |
|
|
981 |
truncateColor(dst);
|
|
982 |
}
|
|
983 |
|
|
984 |
//==============================================================================================
|
|
985 |
|
|
986 |
/*-------------------------------------------------------------------*//*!
|
|
987 |
* \brief Storage and operations for VGImage.
|
|
988 |
* \param
|
|
989 |
* \return
|
|
990 |
* \note
|
|
991 |
*//*-------------------------------------------------------------------*/
|
|
992 |
|
|
993 |
class Surface;
|
|
994 |
class Image
|
|
995 |
{
|
|
996 |
public:
|
|
997 |
Image(const Color::Descriptor& desc, int width, int height, VGbitfield allowedQuality); //throws bad_alloc
|
|
998 |
//use data from a memory buffer. NOTE: data is not copied, so it is user's responsibility to make sure the data remains valid while the Image is in use.
|
|
999 |
Image(const Color::Descriptor& desc, int width, int height, int stride, RIuint8* data); //throws bad_alloc
|
|
1000 |
//child image constructor
|
|
1001 |
Image(Image* parent, int x, int y, int width, int height); //throws bad_alloc
|
|
1002 |
~Image();
|
|
1003 |
|
|
1004 |
const Color::Descriptor& getDescriptor() const { return m_desc; }
|
|
1005 |
int getWidth() const { return m_width; }
|
|
1006 |
int getHeight() const { return m_height; }
|
|
1007 |
int getStride() const { return m_stride; }
|
|
1008 |
Image* getParent() const { return m_parent; }
|
|
1009 |
VGbitfield getAllowedQuality() const { return m_allowedQuality; }
|
|
1010 |
void addInUse() { m_inUse++; }
|
|
1011 |
void removeInUse() { RI_ASSERT(m_inUse > 0); m_inUse--; }
|
|
1012 |
int isInUse() const { return m_inUse; }
|
|
1013 |
RIuint8* getData() const { return m_data; }
|
|
1014 |
void addReference() { m_referenceCount++; }
|
|
1015 |
int removeReference() { m_referenceCount--; RI_ASSERT(m_referenceCount >= 0); return m_referenceCount; }
|
|
1016 |
bool overlaps(const Image* src) const;
|
|
1017 |
void setUnsafe(bool unsafe) { if (unsafe && m_desc.maybeUnsafe()) m_unsafeData = unsafe; else m_unsafeData = false; }
|
|
1018 |
bool isUnsafe() const { return m_unsafeData; }
|
|
1019 |
|
|
1020 |
void clear(const Color& clearColor, int x, int y, int w, int h);
|
|
1021 |
void blit(VGContext* context, const Image* src, int sx, int sy, int dx, int dy, int w, int h, Array<Rectangle>* scissors = NULL, bool dither = false); //throws bad_alloc
|
|
1022 |
|
|
1023 |
RI_INLINE static const void* incrementPointer(const void* ptr, int bpp, RIint32 x);
|
|
1024 |
RI_INLINE static void* calculateAddress(const void* basePtr, int bpp, int x, int y, int stride);
|
|
1025 |
|
|
1026 |
static RI_INLINE RIuint32 readPackedPixelFromAddress(const void *ptr, int bpp, int x);
|
|
1027 |
static RI_INLINE void writePackedPixelToAddress(void* ptr, int bpp, int x, RIuint32 packedColor);
|
|
1028 |
|
|
1029 |
RI_INLINE RIuint32 readPackedPixel(int x, int y) const;
|
|
1030 |
Color readPixel(int x, int y) const;
|
|
1031 |
RI_INLINE void writePackedPixelToAddress(void* ptr, int x, RIuint32 packedColor);
|
|
1032 |
void writePackedPixel(int x, int y, RIuint32 packedColor);
|
|
1033 |
void writePixel(int x, int y, const Color& c);
|
|
1034 |
|
|
1035 |
void fillPacked(RIuint32 packedColor);
|
|
1036 |
|
|
1037 |
static RI_INLINE void fillPackedPixels(void* data, int bpp, int x, int y, int stride, int nPixels, RIuint32 packedColor);
|
|
1038 |
RI_INLINE void fillPackedPixels(int x, int y, int nPixels, RIuint32 packedColor);
|
|
1039 |
RI_INLINE void fillPackedRectangle(int x0, int y0, int width, int height, RIuint32 packedColor);
|
|
1040 |
|
|
1041 |
void writeFilteredPixel(int x, int y, const Color& c, VGbitfield channelMask);
|
|
1042 |
|
|
1043 |
RIfloat readMaskPixel(int x, int y) const; //can read any image format
|
|
1044 |
void writeMaskPixel(int x, int y, RIfloat m); //can write only to VG_A_x
|
|
1045 |
|
|
1046 |
Color resample(RIfloat x, RIfloat y, const Matrix3x3& surfaceToImage, VGImageQuality quality, VGTilingMode tilingMode, const Color& tileFillColor); //throws bad_alloc
|
|
1047 |
void makeMipMaps(); //throws bad_alloc
|
|
1048 |
|
|
1049 |
void colorMatrix(const Image& src, const RIfloat* matrix, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
|
|
1050 |
void convolve(const Image& src, int kernelWidth, int kernelHeight, int shiftX, int shiftY, const RIint16* kernel, RIfloat scale, RIfloat bias, VGTilingMode tilingMode, const Color& edgeFillColor, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
|
|
1051 |
void separableConvolve(const Image& src, int kernelWidth, int kernelHeight, int shiftX, int shiftY, const RIint16* kernelX, const RIint16* kernelY, RIfloat scale, RIfloat bias, VGTilingMode tilingMode, const Color& edgeFillColor, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
|
|
1052 |
void gaussianBlur(const Image& src, RIfloat stdDeviationX, RIfloat stdDeviationY, VGTilingMode tilingMode, const Color& edgeFillColor, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
|
|
1053 |
void lookup(const Image& src, const RIuint8 * redLUT, const RIuint8 * greenLUT, const RIuint8 * blueLUT, const RIuint8 * alphaLUT, bool outputLinear, bool outputPremultiplied, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
|
|
1054 |
void lookupSingle(const Image& src, const RIuint32 * lookupTable, VGImageChannel sourceChannel, bool outputLinear, bool outputPremultiplied, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
|
|
1055 |
|
|
1056 |
RI_INLINE static int descriptorToStride(const Color::Descriptor& desc, int width) { return (width*desc.bitsPerPixel+7)/8; };
|
|
1057 |
|
|
1058 |
void getStorageOffset(int& x, int& y) const { x = m_storageOffsetX; y = m_storageOffsetY; }
|
|
1059 |
|
|
1060 |
private:
|
|
1061 |
Image(const Image&); //!< Not allowed.
|
|
1062 |
void operator=(const Image&); //!< Not allowed.
|
|
1063 |
|
|
1064 |
#if defined(RI_DEBUG)
|
|
1065 |
bool ptrInImage(const void* ptr) const;
|
|
1066 |
#endif
|
|
1067 |
Color readTexel(int u, int v, int level, VGTilingMode tilingMode, const Color& tileFillColor) const;
|
|
1068 |
|
|
1069 |
Color::Descriptor m_desc;
|
|
1070 |
int m_width;
|
|
1071 |
int m_height;
|
|
1072 |
VGbitfield m_allowedQuality;
|
|
1073 |
int m_inUse;
|
|
1074 |
int m_stride;
|
|
1075 |
RIuint8* m_data;
|
|
1076 |
int m_referenceCount;
|
|
1077 |
bool m_ownsData;
|
|
1078 |
Image* m_parent;
|
|
1079 |
int m_storageOffsetX;
|
|
1080 |
int m_storageOffsetY;
|
|
1081 |
bool m_unsafeData; // Data may contain incorrect pixel data
|
|
1082 |
|
|
1083 |
#ifndef RI_COMPILE_LLVM_BYTECODE
|
|
1084 |
|
|
1085 |
#endif /* RI_COMPILE_LLVM_BYTECODE */
|
|
1086 |
};
|
|
1087 |
|
|
1088 |
#if defined(RI_DEBUG)
|
|
1089 |
RI_INLINE bool Image::ptrInImage(const void* ptr) const
|
|
1090 |
{
|
|
1091 |
RIuint8* p = (RIuint8*)ptr;
|
|
1092 |
|
|
1093 |
if (p < m_data) return false;
|
|
1094 |
if (p >= (m_data + m_height * m_stride)) return false;
|
|
1095 |
return true;
|
|
1096 |
}
|
|
1097 |
#endif
|
|
1098 |
|
|
1099 |
RI_INLINE const void* Image::incrementPointer(const void* ptr, int bpp, int x)
|
|
1100 |
{
|
|
1101 |
if (bpp >= 8)
|
|
1102 |
return (((RIuint8*)ptr) + (bpp >> 3));
|
|
1103 |
// Increment the pointer only when the byte is actually about to change.
|
|
1104 |
int mask;
|
|
1105 |
if (bpp == 4)
|
|
1106 |
mask = 1;
|
|
1107 |
else if (bpp == 2)
|
|
1108 |
mask = 3;
|
|
1109 |
else
|
|
1110 |
mask = 7;
|
|
1111 |
if ((x & mask) == mask)
|
|
1112 |
return ((RIuint8*)ptr + 1);
|
|
1113 |
return ptr;
|
|
1114 |
}
|
|
1115 |
|
|
1116 |
RI_INLINE void* Image::calculateAddress(const void* basePtr, int bpp, int x, int y, int stride)
|
|
1117 |
{
|
|
1118 |
if (bpp >= 8)
|
|
1119 |
{
|
|
1120 |
return (void*)((RIuint8*)basePtr + y * stride + x * (bpp >> 3));
|
|
1121 |
} else
|
|
1122 |
{
|
|
1123 |
// 4, 2, or 1 bits per pixel
|
|
1124 |
RI_ASSERT(bpp == 4 || bpp == 2 || bpp == 1);
|
|
1125 |
return (void*)((RIuint8*)basePtr + y * stride + ((x * bpp) >> 3));
|
|
1126 |
}
|
|
1127 |
}
|
|
1128 |
|
|
1129 |
RI_INLINE RIuint32 Image::readPackedPixel(int x, int y) const
|
|
1130 |
{
|
|
1131 |
RI_ASSERT(m_data);
|
|
1132 |
RI_ASSERT(x >= 0 && x < m_width);
|
|
1133 |
RI_ASSERT(y >= 0 && y < m_height);
|
|
1134 |
RI_ASSERT(m_referenceCount > 0);
|
|
1135 |
|
|
1136 |
RIuint32 p = 0;
|
|
1137 |
|
|
1138 |
void* ptr = Image::calculateAddress(m_data, m_desc.bitsPerPixel, x+m_storageOffsetX, y+m_storageOffsetY, m_stride);
|
|
1139 |
p = readPackedPixelFromAddress(ptr, m_desc.bitsPerPixel, x+m_storageOffsetX);
|
|
1140 |
|
|
1141 |
return p;
|
|
1142 |
}
|
|
1143 |
|
|
1144 |
|
|
1145 |
RI_INLINE void Image::writePackedPixelToAddress(void* ptr, int bpp, int x, RIuint32 packedColor)
|
|
1146 |
{
|
|
1147 |
// \note packedColor must contain the whole data (including < 8 bpp data)?
|
|
1148 |
switch(bpp)
|
|
1149 |
{
|
|
1150 |
case 32:
|
|
1151 |
{
|
|
1152 |
RIuint32* s = ((RIuint32*)ptr);
|
|
1153 |
*s = (RIuint32)packedColor;
|
|
1154 |
break;
|
|
1155 |
}
|
|
1156 |
|
|
1157 |
case 16:
|
|
1158 |
{
|
|
1159 |
RIuint16* s = ((RIuint16*)ptr);
|
|
1160 |
*s = (RIuint16)packedColor;
|
|
1161 |
break;
|
|
1162 |
}
|
|
1163 |
|
|
1164 |
case 8:
|
|
1165 |
{
|
|
1166 |
RIuint8* s = ((RIuint8*)ptr);
|
|
1167 |
*s = (RIuint8)packedColor;
|
|
1168 |
break;
|
|
1169 |
}
|
|
1170 |
case 4:
|
|
1171 |
{
|
|
1172 |
RIuint8* s = ((RIuint8*)ptr);
|
|
1173 |
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
|
|
1174 |
break;
|
|
1175 |
}
|
|
1176 |
|
|
1177 |
case 2:
|
|
1178 |
{
|
|
1179 |
RIuint8* s = ((RIuint8*)ptr);
|
|
1180 |
*s = (RIuint8)((packedColor << ((x&3)<<1)) | ((unsigned int)*s & ~(0x3 << ((x&3)<<1))));
|
|
1181 |
break;
|
|
1182 |
}
|
|
1183 |
|
|
1184 |
default:
|
|
1185 |
{
|
|
1186 |
RI_ASSERT(bpp == 1);
|
|
1187 |
RIuint8* s = ((RIuint8*)ptr);
|
|
1188 |
*s = (RIuint8)((packedColor << (x&7)) | ((unsigned int)*s & ~(0x1 << (x&7))));
|
|
1189 |
break;
|
|
1190 |
}
|
|
1191 |
}
|
|
1192 |
// m_mipmapsValid = false; // \note Will never do this, must be handled outside this class somehow!
|
|
1193 |
}
|
|
1194 |
|
|
1195 |
/**
|
|
1196 |
* \brief Write packed pixel into address.
|
|
1197 |
* \param x Which x-coordinate (starting from the start of the scanline
|
|
1198 |
* pointed to) is addressed? This is only required for formats
|
|
1199 |
* that have less than 8 bpp.
|
|
1200 |
*/
|
|
1201 |
void Image::writePackedPixelToAddress(void* address, int x, RIuint32 packedColor)
|
|
1202 |
{
|
|
1203 |
writePackedPixelToAddress(address, m_desc.bitsPerPixel, x, packedColor);
|
|
1204 |
}
|
|
1205 |
|
|
1206 |
/**
|
|
1207 |
* \brief Read a packed pixel from a given address. Notice the use of param x!
|
|
1208 |
* \param x Check which part of byte to return if bpp < 8
|
|
1209 |
*/
|
|
1210 |
RI_INLINE RIuint32 Image::readPackedPixelFromAddress(const void *ptr, int bpp, int x)
|
|
1211 |
{
|
|
1212 |
switch(bpp)
|
|
1213 |
{
|
|
1214 |
case 32:
|
|
1215 |
{
|
|
1216 |
RIuint32* s = (RIuint32*)ptr;
|
|
1217 |
return *s;
|
|
1218 |
}
|
|
1219 |
|
|
1220 |
case 16:
|
|
1221 |
{
|
|
1222 |
RIuint16* s = (RIuint16*)ptr;
|
|
1223 |
return (RIuint32)*s;
|
|
1224 |
}
|
|
1225 |
|
|
1226 |
case 8:
|
|
1227 |
{
|
|
1228 |
RIuint8* s = (RIuint8*)ptr;
|
|
1229 |
return (RIuint32)*s;
|
|
1230 |
}
|
|
1231 |
case 4:
|
|
1232 |
{
|
|
1233 |
RIuint8* s = ((RIuint8*)ptr);
|
|
1234 |
return (RIuint32)(*s >> ((x&1)<<2)) & 0xf;
|
|
1235 |
}
|
|
1236 |
|
|
1237 |
case 2:
|
|
1238 |
{
|
|
1239 |
RIuint8* s = ((RIuint8*)ptr);
|
|
1240 |
return (RIuint32)(*s >> ((x&3)<<1)) & 0x3;
|
|
1241 |
}
|
|
1242 |
|
|
1243 |
default:
|
|
1244 |
{
|
|
1245 |
RI_ASSERT(bpp == 1);
|
|
1246 |
RIuint8* s = ((RIuint8*)ptr);
|
|
1247 |
return (RIuint32)(*s >> (x&7)) & 0x1;
|
|
1248 |
}
|
|
1249 |
}
|
|
1250 |
}
|
|
1251 |
|
|
1252 |
RI_INLINE void Image::writePackedPixel(int x, int y, RIuint32 packedColor)
|
|
1253 |
{
|
|
1254 |
RI_ASSERT(m_data);
|
|
1255 |
RI_ASSERT(x >= 0 && x < m_width);
|
|
1256 |
RI_ASSERT(y >= 0 && y < m_height);
|
|
1257 |
RI_ASSERT(m_referenceCount > 0);
|
|
1258 |
|
|
1259 |
x += m_storageOffsetX;
|
|
1260 |
y += m_storageOffsetY;
|
|
1261 |
|
|
1262 |
RIuint8* scanline = m_data + y * m_stride;
|
|
1263 |
switch(m_desc.bitsPerPixel)
|
|
1264 |
{
|
|
1265 |
case 32:
|
|
1266 |
{
|
|
1267 |
RIuint32* s = ((RIuint32*)scanline) + x;
|
|
1268 |
*s = (RIuint32)packedColor;
|
|
1269 |
break;
|
|
1270 |
}
|
|
1271 |
|
|
1272 |
case 16:
|
|
1273 |
{
|
|
1274 |
RIuint16* s = ((RIuint16*)scanline) + x;
|
|
1275 |
*s = (RIuint16)packedColor;
|
|
1276 |
break;
|
|
1277 |
}
|
|
1278 |
|
|
1279 |
case 8:
|
|
1280 |
{
|
|
1281 |
RIuint8* s = ((RIuint8*)scanline) + x;
|
|
1282 |
*s = (RIuint8)packedColor;
|
|
1283 |
break;
|
|
1284 |
}
|
|
1285 |
case 4:
|
|
1286 |
{
|
|
1287 |
RIuint8* s = ((RIuint8*)scanline) + (x>>1);
|
|
1288 |
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
|
|
1289 |
break;
|
|
1290 |
}
|
|
1291 |
|
|
1292 |
case 2:
|
|
1293 |
{
|
|
1294 |
RIuint8* s = ((RIuint8*)scanline) + (x>>2);
|
|
1295 |
*s = (RIuint8)((packedColor << ((x&3)<<1)) | ((unsigned int)*s & ~(0x3 << ((x&3)<<1))));
|
|
1296 |
break;
|
|
1297 |
}
|
|
1298 |
|
|
1299 |
default:
|
|
1300 |
{
|
|
1301 |
RI_ASSERT(m_desc.bitsPerPixel == 1);
|
|
1302 |
RIuint8* s = ((RIuint8*)scanline) + (x>>3);
|
|
1303 |
*s = (RIuint8)((packedColor << (x&7)) | ((unsigned int)*s & ~(0x1 << (x&7))));
|
|
1304 |
break;
|
|
1305 |
}
|
|
1306 |
}
|
|
1307 |
//m_mipmapsValid = false;
|
|
1308 |
}
|
|
1309 |
|
|
1310 |
|
|
1311 |
/**
|
|
1312 |
* \brief Unsafe static method for setting image pixels
|
|
1313 |
*/
|
|
1314 |
RI_INLINE void Image::fillPackedPixels(void* data, int bpp, int x, int y, int stride, int nPixels, RIuint32 packedColor)
|
|
1315 |
{
|
|
1316 |
RI_ASSERT(nPixels > 0);
|
|
1317 |
RI_ASSERT(data);
|
|
1318 |
|
|
1319 |
RIuint8* scanline = (RIuint8*)data + y * stride;
|
|
1320 |
|
|
1321 |
switch(bpp)
|
|
1322 |
{
|
|
1323 |
case 32:
|
|
1324 |
{
|
|
1325 |
RIuint32* s = ((RIuint32*)scanline) + x;
|
|
1326 |
|
|
1327 |
for (int i = 0; i < nPixels; i++)
|
|
1328 |
s[i] = packedColor;
|
|
1329 |
|
|
1330 |
break;
|
|
1331 |
}
|
|
1332 |
|
|
1333 |
case 16:
|
|
1334 |
{
|
|
1335 |
RIuint16* s = ((RIuint16*)scanline) + x;
|
|
1336 |
|
|
1337 |
for (int i = 0; i < nPixels; i++)
|
|
1338 |
s[i] = (RIuint16)packedColor;
|
|
1339 |
|
|
1340 |
break;
|
|
1341 |
}
|
|
1342 |
|
|
1343 |
case 8:
|
|
1344 |
{
|
|
1345 |
RIuint8* s = ((RIuint8*)scanline) + x;
|
|
1346 |
|
|
1347 |
for (int i = 0; i < nPixels; i++)
|
|
1348 |
s[i] = (RIuint8)packedColor;
|
|
1349 |
|
|
1350 |
break;
|
|
1351 |
}
|
|
1352 |
case 4:
|
|
1353 |
{
|
|
1354 |
//RI_ASSERT((packedColor & 0xf) == 0);
|
|
1355 |
//packedColor &= 0xf;
|
|
1356 |
RIuint8* s = ((RIuint8*)scanline) + (x>>1);
|
|
1357 |
if (x & 1)
|
|
1358 |
{
|
|
1359 |
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
|
|
1360 |
s++;
|
|
1361 |
x++;
|
|
1362 |
nPixels--;
|
|
1363 |
}
|
|
1364 |
RI_ASSERT(!(x&1));
|
|
1365 |
|
|
1366 |
int c = nPixels / 2;
|
|
1367 |
RIuint8 bytePacked = packedColor | (packedColor << 4);
|
|
1368 |
while (c)
|
|
1369 |
{
|
|
1370 |
*s++ = bytePacked;
|
|
1371 |
c--;
|
|
1372 |
x+=2;
|
|
1373 |
}
|
|
1374 |
nPixels &= 1;
|
|
1375 |
|
|
1376 |
if (nPixels)
|
|
1377 |
{
|
|
1378 |
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
|
|
1379 |
s++;
|
|
1380 |
x++;
|
|
1381 |
nPixels--;
|
|
1382 |
}
|
|
1383 |
RI_ASSERT(nPixels == 0);
|
|
1384 |
break;
|
|
1385 |
}
|
|
1386 |
|
|
1387 |
case 2:
|
|
1388 |
{
|
|
1389 |
// This case should not be needed!
|
|
1390 |
RI_ASSERT(false);
|
|
1391 |
RIuint8* s = ((RIuint8*)scanline) + (x>>2);
|
|
1392 |
*s = (RIuint8)((packedColor << ((x&3)<<1)) | ((unsigned int)*s & ~(0x3 << ((x&3)<<1))));
|
|
1393 |
break;
|
|
1394 |
}
|
|
1395 |
|
|
1396 |
default:
|
|
1397 |
{
|
|
1398 |
RI_ASSERT(bpp == 1);
|
|
1399 |
RIuint8* s = ((RIuint8*)scanline) + (x>>3);
|
|
1400 |
// \todo Get this as input instead?
|
|
1401 |
RI_ASSERT(packedColor == 1 || packedColor == 0);
|
|
1402 |
RIuint8 fullyPacked = (RIuint8)(-(RIint8)packedColor);
|
|
1403 |
|
|
1404 |
if (x & 7)
|
|
1405 |
{
|
|
1406 |
// Handle the first byte:
|
|
1407 |
RIuint8 o = *s;
|
|
1408 |
int a = x&7;
|
|
1409 |
RI_ASSERT(a>=1);
|
|
1410 |
int b = RI_INT_MIN(a + nPixels, 8);
|
|
1411 |
RI_ASSERT(b > a);
|
|
1412 |
RIuint8 emask = (1u << b)-1;
|
|
1413 |
RIuint8 mask = (0xffu<<a) & emask;
|
|
1414 |
RI_ASSERT(mask>0);
|
|
1415 |
RI_ASSERT(mask<=254);
|
|
1416 |
*s++ = (o&(~mask))|(fullyPacked & mask);
|
|
1417 |
nPixels -= 8-(x&7);
|
|
1418 |
x += 8-(x&7);
|
|
1419 |
}
|
|
1420 |
|
|
1421 |
if (nPixels < 0)
|
|
1422 |
return;
|
|
1423 |
|
|
1424 |
RI_ASSERT(!(x&1));
|
|
1425 |
|
|
1426 |
int c = nPixels/8;
|
|
1427 |
while (c)
|
|
1428 |
{
|
|
1429 |
*s++ = fullyPacked;
|
|
1430 |
c--;
|
|
1431 |
x+=8;
|
|
1432 |
}
|
|
1433 |
nPixels -= ((nPixels/8) * 8);
|
|
1434 |
|
|
1435 |
|
|
1436 |
if (nPixels)
|
|
1437 |
{
|
|
1438 |
RI_ASSERT((x&7) == 0);
|
|
1439 |
|
|
1440 |
RIuint8 o = *s;
|
|
1441 |
int b = nPixels;
|
|
1442 |
RI_ASSERT(b<=7);
|
|
1443 |
RIuint8 mask = (1u<<b)-1;
|
|
1444 |
RI_ASSERT(mask <= 127);
|
|
1445 |
*s++ = (o&(~mask))|(fullyPacked & mask);
|
|
1446 |
}
|
|
1447 |
break;
|
|
1448 |
}
|
|
1449 |
}
|
|
1450 |
//m_mipmapsValid = false;
|
|
1451 |
}
|
|
1452 |
RI_INLINE void Image::fillPackedPixels(int x, int y, int nPixels, RIuint32 packedColor)
|
|
1453 |
{
|
|
1454 |
fillPackedPixels((void*)m_data, m_desc.bitsPerPixel, x + m_storageOffsetX, y + m_storageOffsetY, m_stride, nPixels, packedColor);
|
|
1455 |
}
|
|
1456 |
|
|
1457 |
RI_INLINE void Image::fillPackedRectangle(int x0, int y0, int width, int height, RIuint32 packedColor)
|
|
1458 |
{
|
|
1459 |
int y = y0;
|
|
1460 |
while (height)
|
|
1461 |
{
|
|
1462 |
fillPackedPixels(x0, y, width, packedColor);
|
|
1463 |
y++;
|
|
1464 |
height--;
|
|
1465 |
}
|
|
1466 |
}
|
|
1467 |
|
|
1468 |
/*-------------------------------------------------------------------*//*!
|
|
1469 |
* \brief Surface class abstracting multisampled rendering surface.
|
|
1470 |
* \param
|
|
1471 |
* \return
|
|
1472 |
* \note
|
|
1473 |
*//*-------------------------------------------------------------------*/
|
|
1474 |
|
|
1475 |
class Surface
|
|
1476 |
{
|
|
1477 |
public:
|
|
1478 |
Surface(const Color::Descriptor& desc, int width, int height, int numSamples); //throws bad_alloc
|
|
1479 |
Surface(Image* image); //throws bad_alloc
|
|
1480 |
Surface(const Color::Descriptor& desc, int width, int height, int stride, RIuint8* data); //throws bad_alloc
|
|
1481 |
~Surface();
|
|
1482 |
|
|
1483 |
RI_INLINE const Image* getImage() const {return m_image;}
|
|
1484 |
RI_INLINE const Color::Descriptor& getDescriptor() const { return m_image->getDescriptor(); }
|
|
1485 |
RI_INLINE int getWidth() const { return m_width; }
|
|
1486 |
RI_INLINE int getHeight() const { return m_height; }
|
|
1487 |
RI_INLINE int getNumSamples() const { return m_numSamples; }
|
|
1488 |
RI_INLINE void addReference() { m_referenceCount++; }
|
|
1489 |
RI_INLINE int removeReference() { m_referenceCount--; RI_ASSERT(m_referenceCount >= 0); return m_referenceCount; }
|
|
1490 |
RI_INLINE int isInUse() const { return m_image->isInUse(); }
|
|
1491 |
RI_INLINE bool isInUse(Image* image) const { return image == m_image ? true : false; }
|
|
1492 |
|
|
1493 |
void clear(const Color& clearColor, int x, int y, int w, int h, const Array<Rectangle>* scissors = NULL);
|
|
1494 |
#if 0
|
|
1495 |
// Currently does not support msaa surfaces
|
|
1496 |
void blit(const Image& src, int sx, int sy, int dx, int dy, int w, int h); //throws bad_alloc
|
|
1497 |
void blit(const Image& src, int sx, int sy, int dx, int dy, int w, int h, const Array<Rectangle>& scissors); //throws bad_alloc
|
|
1498 |
void blit(const Surface* src, int sx, int sy, int dx, int dy, int w, int h); //throws bad_alloc
|
|
1499 |
void blit(const Surface* src, int sx, int sy, int dx, int dy, int w, int h, const Array<Rectangle>& scissors); //throws bad_alloc
|
|
1500 |
#endif
|
|
1501 |
void mask(DynamicBlitter& blitter, const Image* src, VGMaskOperation operation, int x, int y, int w, int h);
|
|
1502 |
|
|
1503 |
RI_INLINE void writePackedPixelToAddress(void* address, int x, RIuint32 p) { m_image->writePackedPixelToAddress(address, x, p); }
|
|
1504 |
RI_INLINE RIuint32 readPackedSample(int x, int y, int sample) const { return m_image->readPackedPixel(x*m_numSamples+sample, y); }
|
|
1505 |
RI_INLINE Color readSample(int x, int y, int sample) const { return m_image->readPixel(x*m_numSamples+sample, y); }
|
|
1506 |
RI_INLINE void writePackedSample(int x, int y, int sample, RIuint32 p) { m_image->writePackedPixel(x*m_numSamples+sample, y, p); }
|
|
1507 |
RI_INLINE void writeSample(int x, int y, int sample, const Color& c) { m_image->writePixel(x*m_numSamples+sample, y, c); }
|
|
1508 |
RI_INLINE void fillPackedSamples(int x, int y, int nPixels, RIuint32 p);
|
|
1509 |
|
|
1510 |
RIfloat readMaskCoverage(int x, int y) const;
|
|
1511 |
void writeMaskCoverage(int x, int y, RIfloat m);
|
|
1512 |
unsigned int readMaskMSAA(int x, int y) const;
|
|
1513 |
void writeMaskMSAA(int x, int y, unsigned int m);
|
|
1514 |
|
|
1515 |
RIuint32 FSAAResolvePacked(int x, int y) const;
|
|
1516 |
Color FSAAResolve(int x, int y) const; //for fb=>img: vgGetPixels, vgReadPixels
|
|
1517 |
|
|
1518 |
private:
|
|
1519 |
Surface(const Surface&); //!< Not allowed.
|
|
1520 |
void operator=(const Surface&); //!< Not allowed.
|
|
1521 |
|
|
1522 |
struct ScissorEdge
|
|
1523 |
{
|
|
1524 |
ScissorEdge() : x(0), miny(0), maxy(0), direction(0) {}
|
|
1525 |
bool operator<(const ScissorEdge& e) const { return x < e.x; }
|
|
1526 |
int x;
|
|
1527 |
int miny;
|
|
1528 |
int maxy;
|
|
1529 |
int direction; //1 start, -1 end
|
|
1530 |
};
|
|
1531 |
|
|
1532 |
int m_width;
|
|
1533 |
int m_height;
|
|
1534 |
int m_numSamples;
|
|
1535 |
int m_referenceCount;
|
|
1536 |
|
|
1537 |
public:
|
|
1538 |
// \todo TERO: Broke the design of this by making it public, make proper
|
|
1539 |
// friend/etc. C++ accessor for optimized pixel-pipelines. Combine with the
|
|
1540 |
// removal of (remnants of) the FSAA support.
|
|
1541 |
Image* m_image;
|
|
1542 |
};
|
|
1543 |
|
|
1544 |
RI_INLINE void Surface::fillPackedSamples(int x, int y, int nPixels, RIuint32 p)
|
|
1545 |
{
|
|
1546 |
m_image->fillPackedPixels(x, y, nPixels, p);
|
|
1547 |
}
|
|
1548 |
|
|
1549 |
|
|
1550 |
/*-------------------------------------------------------------------*//*!
|
|
1551 |
* \brief Drawable class for encapsulating color and mask buffers.
|
|
1552 |
* \param
|
|
1553 |
* \return
|
|
1554 |
* \note
|
|
1555 |
*//*-------------------------------------------------------------------*/
|
|
1556 |
|
|
1557 |
class Drawable
|
|
1558 |
{
|
|
1559 |
public:
|
|
1560 |
Drawable(const Color::Descriptor& desc, int width, int height, int numSamples, int maskBits); //throws bad_alloc
|
|
1561 |
Drawable(Image* image, int maskBits); //throws bad_alloc
|
|
1562 |
Drawable(const Color::Descriptor& desc, int width, int height, int stride, RIuint8* data, int maskBits); //throws bad_alloc
|
|
1563 |
~Drawable();
|
|
1564 |
|
|
1565 |
RI_INLINE const Color::Descriptor& getDescriptor() const { return m_color->getDescriptor(); }
|
|
1566 |
RI_INLINE int getNumMaskBits() const { if(!m_mask) return 0; return m_mask->getDescriptor().alphaBits; }
|
|
1567 |
RI_INLINE int getWidth() const { return m_color->getWidth(); }
|
|
1568 |
RI_INLINE int getHeight() const { return m_color->getHeight(); }
|
|
1569 |
RI_INLINE int getNumSamples() const { return m_color->getNumSamples(); }
|
|
1570 |
RI_INLINE void addReference() { m_referenceCount++; }
|
|
1571 |
RI_INLINE int removeReference() { m_referenceCount--; RI_ASSERT(m_referenceCount >= 0); return m_referenceCount; }
|
|
1572 |
RI_INLINE int isInUse() const { return m_color->isInUse() || (m_mask && m_mask->isInUse()); }
|
|
1573 |
RI_INLINE bool isInUse(Image* image) const { return m_color->isInUse(image) || (m_mask && m_mask->isInUse(image)); }
|
|
1574 |
RI_INLINE Surface* getColorBuffer() const { return m_color; }
|
|
1575 |
RI_INLINE Surface* getMaskBuffer() const { return m_mask; }
|
|
1576 |
|
|
1577 |
void resize(VGContext* context, int newWidth, int newHeight); //throws bad_alloc
|
|
1578 |
private:
|
|
1579 |
Drawable(const Drawable&); //!< Not allowed.
|
|
1580 |
void operator=(const Drawable&); //!< Not allowed.
|
|
1581 |
|
|
1582 |
int m_referenceCount;
|
|
1583 |
Surface* m_color;
|
|
1584 |
Surface* m_mask;
|
|
1585 |
};
|
|
1586 |
|
|
1587 |
//==============================================================================================
|
|
1588 |
|
|
1589 |
} //namespace OpenVGRI
|
|
1590 |
|
|
1591 |
//==============================================================================================
|
|
1592 |
|
|
1593 |
#endif /* __RIIMAGE_H */
|