Move GLES20 source into standard locations
Move Khronos headers into their respective components, to be exported by each.
Remove hostthreadadapter as nothing outside of the vghwapiwrapper, which now contains the code, needs it
#ifndef __RIIMAGE_H
#define __RIIMAGE_H
/*------------------------------------------------------------------------
*
* OpenVG 1.1 Reference Implementation
* -----------------------------------
*
* Copyright (c) 2007 The Khronos Group Inc.
* Portions copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and /or associated documentation files
* (the "Materials "), to deal in the Materials without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Materials,
* and to permit persons to whom the Materials are furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Materials.
*
* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
* THE USE OR OTHER DEALINGS IN THE MATERIALS.
*
*//**
* \file
* \brief Color and Image classes.
* \note
*//*-------------------------------------------------------------------*/
#ifndef _OPENVG_H
#include "VG/openvg.h"
#endif
#ifndef __RIMATH_H
#include "riMath.h"
#endif
#ifndef __RIARRAY_H
#include "riArray.h"
#endif
#include "sfAlphaRcp.h"
#include "sfGammaLUT.h"
#include "riUtils.h"
//==============================================================================================
namespace OpenVGRI
{
class VGContext;
class DynamicBlitter;
/*-------------------------------------------------------------------*//*!
* \brief A class representing rectangles.
* \param
* \return
* \note
*//*-------------------------------------------------------------------*/
class Rectangle
{
public:
Rectangle() : x(0), y(0), width(0), height(0) {}
Rectangle(int rx, int ry, int rw, int rh) : x(rx), y(ry), width(rw), height(rh) {}
void intersect(const Rectangle& r)
{
if(width >= 0 && r.width >= 0 && height >= 0 && r.height >= 0)
{
int x1 = RI_INT_MIN(RI_INT_ADDSATURATE(x, width), RI_INT_ADDSATURATE(r.x, r.width));
x = RI_INT_MAX(x, r.x);
width = RI_INT_MAX(x1 - x, 0);
int y1 = RI_INT_MIN(RI_INT_ADDSATURATE(y, height), RI_INT_ADDSATURATE(r.y, r.height));
y = RI_INT_MAX(y, r.y);
height = RI_INT_MAX(y1 - y, 0);
}
else
{
x = 0;
y = 0;
width = 0;
height = 0;
}
}
bool isEmpty() const { return width == 0 || height == 0; }
int x;
int y;
int width;
int height;
};
/*-------------------------------------------------------------------*//*!
* \brief A class representing color for processing and converting it
* to and from various surface formats.
* \param
* \return
* \note
*//*-------------------------------------------------------------------*/
class Color
{
public:
enum FormatSize
{
SIZE_1 = 0,
SIZE_4 = 1,
SIZE_8 = 2,
SIZE_16 = 3,
SIZE_24 = 4,
SIZE_32 = 5
};
enum Shape
{
SHAPE_RGBA = 0,
SHAPE_RGBX = 1,
SHAPE_RGB = 2,
SHAPE_LA = 3,
SHAPE_L = 4,
SHAPE_A = 5,
SHAPE_ARGB = 6,
SHAPE_XRGB = 7,
SHAPE_AL = 8,
SHAPE_BGRA = 9,
SHAPE_BGRX = 10,
SHAPE_BGR = 11,
SHAPE_ABGR = 12,
SHAPE_XBGR = 13
};
enum InternalFormat
{
lRGBA = 0,
sRGBA = 1,
lRGBA_PRE = 2,
sRGBA_PRE = 3,
lLA = 4,
sLA = 5,
lLA_PRE = 6,
sLA_PRE = 7
};
enum FormatBits
{
NONLINEAR = (1<<0),
PREMULTIPLIED = (1<<1),
LUMINANCE = (1<<2)
};
struct SmallDescriptor
{
RIuint32 toUint32()
{
RIuint32 ret = 0;
ret = (RIuint32)size;
ret |= (RIuint32)shape << 3;
ret |= (RIuint32)internalFormat << (3 + 4);
return ret;
}
FormatSize size;
Shape shape;
InternalFormat internalFormat;
};
class Descriptor
{
public:
Descriptor() {};
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);
RI_INLINE bool isNonlinear() const { return (internalFormat & NONLINEAR) ? true : false; }
RI_INLINE void setNonlinear(bool nonlinear);
RI_INLINE bool isPremultiplied() const { return (internalFormat & PREMULTIPLIED) ? true : false; }
RI_INLINE bool isLuminance() const { return (internalFormat & LUMINANCE) ? true : false; }
RI_INLINE bool isAlphaOnly() const { return (alphaBits && (redBits+greenBits+blueBits+luminanceBits) == 0) ? true : false; }
RI_INLINE bool isBW() const { return isLuminance() && (luminanceBits == 1); }
RI_INLINE bool hasAlpha() const { return alphaBits > 0; }
RI_INLINE bool operator==(const Descriptor& rhs) const;
RI_INLINE bool isShiftConversionToLower(const Descriptor& rhs) const;
RI_INLINE bool isShiftConversion(const Descriptor& rhs) const;
RI_INLINE bool isZeroConversion(const Descriptor& rhs) const;
RI_INLINE bool maybeUnsafe() const { return internalFormat & PREMULTIPLIED ? true : false; };
static RI_INLINE RIuint32 crossConvertToLower(RIuint32 c, const Descriptor& src, const Descriptor& dst);
void toSmallDescriptor(SmallDescriptor& smallDesc) const;
RI_INLINE RIuint32 toIndex() const;
static Descriptor getDummyDescriptor();
Shape getShape() const;
int redBits;
int redShift;
int greenBits;
int greenShift;
int blueBits;
int blueShift;
int alphaBits;
int alphaShift;
int luminanceBits;
int luminanceShift;
Shape shape;
VGImageFormat vgFormat; // \note Storage only
InternalFormat internalFormat;
int bitsPerPixel;
// Derived info:
int bytesPerPixel;
int maskBits;
int maskShift;
};
RI_INLINE Color() : r(0.0f), g(0.0f), b(0.0f), a(0.0f), m_format(sRGBA_PRE) {}
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); }
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); }
RI_INLINE Color(const Color& c) : r(c.r), g(c.g), b(c.b), a(c.a), m_format(c.m_format) {}
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; }
RI_INLINE void operator*=(RIfloat f) { r *= f; g *= f; b *= f; a*= f; }
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; }
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; }
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; }
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; }
void unpack(unsigned int inputData, const Descriptor& inputDesc);
unsigned int pack(const Descriptor& outputDesc) const;
RI_INLINE InternalFormat getInternalFormat() const { return m_format; }
//clamps nonpremultiplied colors and alpha to [0,1] range, and premultiplied alpha to [0,1], colors to [0,a]
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); }
void convert(InternalFormat outputFormat);
void premultiply() { if(!(m_format & PREMULTIPLIED)) { r *= a; g *= a; b *= a; m_format = (InternalFormat)(m_format | PREMULTIPLIED); } }
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); } }
void luminanceToRGB() { if(m_format & LUMINANCE) { RI_ASSERT(r == g && g == b); m_format = (InternalFormat)(m_format & ~LUMINANCE); } }
bool isNonlinear() const { return (m_format & NONLINEAR) ? true : false; }
bool isPremultiplied() const { return (m_format & PREMULTIPLIED) ? true : false; }
bool isLuminance() const { return (m_format & LUMINANCE) ? true : false; }
RI_INLINE void assertConsistency() const;
// \note Why are these in the color class instead of descriptor?
static VGImageFormat descriptorToVGImageFormat(const Descriptor& desc);
RI_INLINE static Descriptor formatToDescriptorConst(VGImageFormat format);
static Descriptor formatToDescriptor(VGImageFormat format);
static bool isValidDescriptor(const Descriptor& desc);
RIfloat r;
RIfloat g;
RIfloat b;
RIfloat a;
private:
InternalFormat m_format;
};
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) :
redBits(dredBits),
redShift(dredShift),
greenBits(dgreenBits),
greenShift(dgreenShift),
blueBits(dblueBits),
blueShift(dblueShift),
alphaBits(dalphaBits),
alphaShift(dalphaShift),
luminanceBits(dluminanceBits),
luminanceShift(dluminanceShift),
shape(shape),
internalFormat(dinternalFormat),
bitsPerPixel(dbpp)
{
bytesPerPixel = bitsPerPixel / 8;
if (alphaBits)
{
maskBits = alphaBits;
maskShift = alphaShift;
}
else if (!this->isLuminance())
{
maskBits = redBits;
maskShift = redShift;
}
else
{
maskBits = luminanceBits;
maskShift = luminanceShift;
}
RI_ASSERT(getShape() == shape);
}
RI_INLINE void Color::Descriptor::setNonlinear(bool nonlinear)
{
if (nonlinear)
internalFormat = (InternalFormat)(((RIuint32)internalFormat)|NONLINEAR);
else
internalFormat = (InternalFormat)(((RIuint32)internalFormat)&(~NONLINEAR));
}
/**
* \brief Creates a pixel format descriptor out of VGImageFormat
* \todo The formats without alpha were non-premultiplied in the reference
* implementation, but wouldn't it make more sense to consider them
* premultiplied? This would make sense at least when blitting to
* windows, etc., where the output color should have the alpha
* multiplied "in".
*/
RI_INLINE Color::Descriptor Color::formatToDescriptorConst(VGImageFormat format)
{
switch(format)
{
case VG_sRGBX_8888:
return Color::Descriptor(8, 24, 8, 16, 8, 8, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_RGBX);
case VG_sRGBA_8888:
return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::sRGBA, 32, SHAPE_RGBA);
case VG_sRGBA_8888_PRE:
return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::sRGBA_PRE, 32, SHAPE_RGBA);
case VG_sRGB_565:
return Color::Descriptor(5, 11, 6, 5, 5, 0, 0, 0, 0, 0, Color::sRGBA, 16, SHAPE_RGB);
case VG_sRGBA_5551:
return Color::Descriptor(5, 11, 5, 6, 5, 1, 1, 0, 0, 0, Color::sRGBA, 16, SHAPE_RGBA);
case VG_sRGBA_4444:
return Color::Descriptor(4, 12, 4, 8, 4, 4, 4, 0, 0, 0, Color::sRGBA, 16, SHAPE_RGBA);
case VG_sL_8:
return Color::Descriptor(0, 0, 0, 0, 0, 0, 0, 0, 8, 0, Color::sLA, 8, SHAPE_L);
case VG_lRGBX_8888:
return Color::Descriptor(8, 24, 8, 16, 8, 8, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_RGBX);
case VG_lRGBA_8888:
return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::lRGBA, 32, SHAPE_RGBA);
case VG_lRGBA_8888_PRE:
return Color::Descriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, Color::lRGBA_PRE, 32, SHAPE_RGBA);
case VG_lL_8:
return Color::Descriptor(0, 0, 0, 0, 0, 0, 0, 0, 8, 0, Color::lLA, 8, SHAPE_L);
case VG_A_8:
return Color::Descriptor(0, 0, 0, 0, 0, 0, 8, 0, 0, 0, Color::lRGBA, 8, SHAPE_A);
case VG_BW_1:
return Color::Descriptor(0, 0, 0, 0, 0, 0, 0, 0, 1, 0, Color::lLA, 1, SHAPE_L);
case VG_A_1:
return Color::Descriptor(0, 0, 0, 0, 0, 0, 1, 0, 0, 0, Color::lRGBA, 1, SHAPE_A);
case VG_A_4:
return Color::Descriptor(0, 0, 0, 0, 0, 0, 4, 0, 0, 0, Color::lRGBA, 4, SHAPE_A);
/* {A,X}RGB channel ordering */
case VG_sXRGB_8888:
return Color::Descriptor(8, 16, 8, 8, 8, 0, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_XRGB);
case VG_sARGB_8888:
return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::sRGBA, 32, SHAPE_ARGB);
case VG_sARGB_8888_PRE:
return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::sRGBA_PRE, 32, SHAPE_ARGB);
case VG_sARGB_1555:
return Color::Descriptor(5, 10, 5, 5, 5, 0, 1, 15, 0, 0, Color::sRGBA, 16, SHAPE_ARGB);
case VG_sARGB_4444:
return Color::Descriptor(4, 8, 4, 4, 4, 0, 4, 12, 0, 0, Color::sRGBA, 16, SHAPE_ARGB);
case VG_lXRGB_8888:
return Color::Descriptor(8, 16, 8, 8, 8, 0, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_XRGB);
case VG_lARGB_8888:
return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::lRGBA, 32, SHAPE_ARGB);
case VG_lARGB_8888_PRE:
return Color::Descriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, Color::lRGBA_PRE, 32, SHAPE_ARGB);
/* BGR{A,X} channel ordering */
case VG_sBGRX_8888:
return Color::Descriptor(8, 8, 8, 16, 8, 24, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_BGRX);
case VG_sBGRA_8888:
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::sRGBA, 32, SHAPE_BGRA);
case VG_sBGRA_8888_PRE:
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::sRGBA_PRE, 32, SHAPE_BGRA);
case VG_sBGR_565:
return Color::Descriptor(5, 0, 6, 5, 5, 11, 0, 0, 0, 0, Color::sRGBA, 16, SHAPE_BGR);
case VG_sBGRA_5551:
return Color::Descriptor(5, 1, 5, 6, 5, 11, 1, 0, 0, 0, Color::sRGBA, 16, SHAPE_BGRA);
case VG_sBGRA_4444:
return Color::Descriptor(4, 4, 4, 8, 4, 12, 4, 0, 0, 0, Color::sRGBA, 16, SHAPE_BGRA);
case VG_lBGRX_8888:
return Color::Descriptor(8, 8, 8, 16, 8, 24, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_BGRX);
case VG_lBGRA_8888:
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::lRGBA, 32, SHAPE_BGRA);
case VG_lBGRA_8888_PRE:
return Color::Descriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, Color::lRGBA_PRE, 32, SHAPE_BGRA);
/* {A,X}BGR channel ordering */
case VG_sXBGR_8888:
return Color::Descriptor(8, 0, 8, 8, 8, 16, 0, 0, 0, 0, Color::sRGBA, 32, SHAPE_XBGR);
case VG_sABGR_8888:
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::sRGBA, 32, SHAPE_ABGR);
case VG_sABGR_8888_PRE:
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::sRGBA_PRE, 32, SHAPE_ABGR);
case VG_sABGR_1555:
return Color::Descriptor(5, 0, 5, 5, 5, 10, 1, 15, 0, 0, Color::sRGBA, 16, SHAPE_ABGR);
case VG_sABGR_4444:
return Color::Descriptor(4, 0, 4, 4, 4, 8, 4, 12, 0, 0, Color::sRGBA, 16, SHAPE_ABGR);
case VG_lXBGR_8888:
return Color::Descriptor(8, 0, 8, 8, 8, 16, 0, 0, 0, 0, Color::lRGBA, 32, SHAPE_XBGR);
case VG_lABGR_8888:
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::lRGBA, 32, SHAPE_ABGR);
default:
//case VG_lABGR_8888_PRE:
RI_ASSERT(format == VG_lABGR_8888_PRE);
return Color::Descriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, Color::lRGBA_PRE, 32, SHAPE_ABGR);
}
}
RI_INLINE bool Color::Descriptor::operator==(const Descriptor& rhs) const
{
return memcmp(this, &rhs, sizeof(Descriptor)) ? false : true;
}
RI_INLINE bool Color::Descriptor::isZeroConversion(const Descriptor& rhs) const
{
return (shape == rhs.shape) &&
(internalFormat == rhs.internalFormat) &&
(redBits == rhs.redBits) &&
(greenBits == rhs.greenBits) &&
(blueBits == rhs.blueBits) &&
(alphaBits == rhs.alphaBits) &&
(luminanceBits == rhs.luminanceBits);
}
RI_INLINE bool Color::Descriptor::isShiftConversion(const Descriptor& rhs) const
{
// \note BW conversion is always forced to full at the moment.
if (isBW() != rhs.isBW())
return false;
return (isPremultiplied() == rhs.isPremultiplied())
&& (isNonlinear() == rhs.isNonlinear())
&& (isLuminance() == rhs.isLuminance());
}
RI_INLINE bool Color::Descriptor::isShiftConversionToLower(const Descriptor& rhs) const
{
// \note BW conversion is always forced to full at the moment.
if (isBW() != rhs.isBW())
return false;
// \note Mask bits are not checked because they are derived information.
return (isShiftConversion(rhs)
&& (rhs.redBits <= redBits)
&& (rhs.greenBits <= greenBits)
&& (rhs.blueBits <= blueBits)
&& (rhs.alphaBits <= alphaBits)
&& (rhs.luminanceBits <= luminanceBits));
}
/**
* \brief In-place conversion of packed color to lower bit-depth
* \param c Input packed color
* \param src Source color descriptor
* \param dst Destination color descriptor
*/
RI_INLINE RIuint32 Color::Descriptor::crossConvertToLower(RIuint32 c, const Descriptor& src, const Descriptor& dst)
{
RIuint32 r = 0;
RI_ASSERT(dst.redBits <= src.redBits);
RI_ASSERT(dst.greenBits <= src.greenBits);
RI_ASSERT(dst.blueBits <= src.blueBits);
RI_ASSERT(dst.alphaBits <= src.alphaBits);
if (src.isLuminance())
{
RI_ASSERT(dst.isLuminance());
r = ((c >> (src.luminanceShift + src.luminanceBits - dst.luminanceBits)) & ((1u<<dst.luminanceBits)-1)) << dst.luminanceShift;
} else
{
r = ((c >> (src.redShift + src.redBits - dst.redBits)) & ((1u<<dst.redBits)-1)) << dst.redShift;
r |= ((c >> (src.greenShift + src.greenBits - dst.greenBits)) & ((1u<<dst.greenBits)-1)) << dst.greenShift;
r |= ((c >> (src.blueShift + src.blueBits - dst.blueBits)) & ((1u<<dst.blueBits)-1)) << dst.blueShift;
}
if (src.hasAlpha())
{
if (dst.hasAlpha())
r |= ((c >> (src.alphaShift + src.alphaBits - dst.alphaBits)) & ((1u<<dst.alphaBits)-1)) << dst.alphaShift;
else
{
// Make sure that the alpha is applied to the color if doing only a shift conversion.
RI_ASSERT(src.isPremultiplied() == dst.isPremultiplied());
}
}
return r;
}
RI_INLINE RIuint32 Color::Descriptor::toIndex() const
{
SmallDescriptor smallDesc;
toSmallDescriptor(smallDesc);
return smallDesc.toUint32();
}
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()); }
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()); }
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()); }
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()); }
RI_INLINE void Color::assertConsistency() const
{
RI_ASSERT(r >= 0.0f && r <= 1.0f);
RI_ASSERT(g >= 0.0f && g <= 1.0f);
RI_ASSERT(b >= 0.0f && b <= 1.0f);
RI_ASSERT(a >= 0.0f && a <= 1.0f);
RI_ASSERT(!isPremultiplied() || (r <= a && g <= a && b <= a)); //premultiplied colors must have color channels less than or equal to alpha
RI_ASSERT((isLuminance() && r == g && r == b) || !isLuminance()); //if luminance, r=g=b
}
class IntegerColor
{
public:
IntegerColor() {r = g = b = a = 0;}
IntegerColor(const Color& color);
RI_INLINE IntegerColor(RIuint32 packedColor, const Color::Descriptor& desc) { fromPackedColor(packedColor, desc); }
RI_INLINE IntegerColor(RIuint32 cr, RIuint32 cg, RIuint32 cb, RIuint32 ca) { r = cr; g = cg; b = cb; a = ca; }
RI_INLINE void asFixedPoint(const Color& color);
RI_INLINE void fromPackedColor(RIuint32 packedColor, const Color::Descriptor& desc);
RI_INLINE void expandColor(const Color::Descriptor& desc);
RI_INLINE void truncateColor(const Color::Descriptor& desc);
RI_INLINE void clampToAlpha();
RI_INLINE RIuint32 getPackedColor(const Color::Descriptor& desc) const;
RI_INLINE RIuint32 getPackedMaskColor(const Color::Descriptor& desc) const;
RI_INLINE void premultiply(bool luminance = false);
RI_INLINE void unpremultiply(bool luminance = false);
//RI_INLINE void linearToGamma(bool luminance, bool premultipliedIn, bool premultipliedOut);
RI_INLINE void linearToGamma(bool luminance = false);
RI_INLINE void gammaToLinear(bool luminance = false);
RI_INLINE void fromPackedMask(RIuint32 packedColor, const Color::Descriptor& desc);
RI_INLINE void expandMask(const Color::Descriptor& desc);
RI_INLINE void truncateMask(const Color::Descriptor& desc);
RI_INLINE void fullLuminanceToRGB(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut);
RI_INLINE void fullRGBToLuminance(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut);
RI_INLINE void luminanceToRGB();
RI_INLINE void rgbToLuminance();
RI_INLINE void convertToFrom(const Color::Descriptor& dst, const Color::Descriptor& src, bool srcIsMask);
RI_INLINE static IntegerColor linearBlendNS(const IntegerColor& c0, const IntegerColor& c1, int k);
RIuint32 r;
RIuint32 g;
RIuint32 b;
RIuint32 a;
};
/**
* \brief Blend two colors linearly. The output will not be scaled into original range.
* \param k Blend coefficient. Must be [0..255] for correct results.
* \todo Parameterize against bits in k? To perform well, that setup must be compiled rt.
*/
RI_INLINE IntegerColor IntegerColor::linearBlendNS(const IntegerColor& c0, const IntegerColor& c1, int k)
{
RI_ASSERT(k >= 0 && k <= 255);
IntegerColor ret;
RIuint32 ik = 255 - k;
ret.r = ik * c0.r + k * c1.r;
ret.g = ik * c0.g + k * c1.g;
ret.b = ik * c0.b + k * c1.b;
ret.a = ik * c0.a + k * c1.a;
return ret;
}
/**
* \note Assumes that each individual component is in proper range (usually indicated by the
* corresponding shift).
*/
RI_INLINE RIuint32 packRGBAInteger(RIuint32 cr, int rs, RIuint32 cg, int gs, RIuint32 cb, int bs, RIuint32 ca, int as)
{
return (cr << rs) | (cg << gs) | (cb << bs) | (ca << as);
}
/**
* \brief Packs a color into RIuint32.
* \note The color must have been truncated to contain correct amount of bits per channel
* \note This function is efficient only if runtime compilation is used.
*/
RI_INLINE RIuint32 IntegerColor::getPackedColor(const Color::Descriptor& desc) const
{
RIuint32 res = 0;
if (desc.luminanceBits)
{
RI_ASSERT(desc.redBits == 0 && desc.greenBits == 0 && desc.blueBits == 0);
RI_ASSERT(r < (1u<<desc.luminanceBits));
res = r << desc.luminanceShift;
}
else if (desc.redBits)
{
RI_ASSERT(r < (1u<<desc.redBits));
res = r << desc.redShift;
if (desc.greenBits)
{
RI_ASSERT(desc.blueBits);
RI_ASSERT(g < (1u<<desc.greenBits));
RI_ASSERT(b < (1u<<desc.blueBits));
res |= g << desc.greenShift;
res |= b << desc.blueShift;
}
}
if (desc.alphaBits)
{
RI_ASSERT(a < (1u<<desc.alphaBits));
res |= a << desc.alphaShift;
}
return res;
}
RI_INLINE RIuint32 IntegerColor::getPackedMaskColor(const Color::Descriptor& desc) const
{
if (desc.alphaBits)
return packRGBAInteger(0, desc.redShift, 0, desc.greenShift, 0, desc.blueShift, a, desc.alphaShift);
else if(desc.redBits)
return packRGBAInteger(a, desc.redShift, 0, desc.greenShift, 0, desc.blueShift, 0, desc.alphaShift);
else
{
RI_ASSERT(desc.luminanceBits);
return packRGBAInteger(a, desc.luminanceBits, 0, desc.greenShift, 0, desc.blueShift, 0, desc.alphaShift);
}
}
RI_INLINE void IntegerColor::premultiply(bool luminance)
{
// \todo Check the round!!!
RIuint32 fxa = a + (a>>7);
r = (r * fxa); r = (r + (1<<7))>>8;
if (!luminance)
{
g = (g * fxa); g = (g + (1<<7))>>8;
b = (b * fxa); b = (b + (1<<7))>>8;
}
}
RI_INLINE void IntegerColor::unpremultiply(bool luminance)
{
RI_ASSERT(a <= 255);
RIuint32 rcp = sc_alphaRcp[a];
r = (r * rcp) >> 8;
if (!luminance)
{
g = (g * rcp) >> 8;
b = (b * rcp) >> 8;
}
}
RI_INLINE void IntegerColor::linearToGamma(bool luminance)
{
RI_ASSERT(r <= 255 && g <= 255 && b <= 255 && a <= 255);
r = sc_lRGB_to_sRGB[r];
if (!luminance)
{
g = sc_lRGB_to_sRGB[g];
b = sc_lRGB_to_sRGB[b];
}
// \note Alpha is _not_ converted and it must be considered linear always
}
RI_INLINE void IntegerColor::gammaToLinear(bool luminance)
{
RI_ASSERT(r <= 255 && g <= 255 && b <= 255 && a <= 255);
r = sc_sRGB_to_lRGB[r];
if (!luminance)
{
g = sc_sRGB_to_lRGB[g];
b = sc_sRGB_to_lRGB[b];
}
// \note Alpha is _not_ converted and it must be considered linear always
}
RI_INLINE void IntegerColor::asFixedPoint(const Color& color)
{
r = (RIuint32)(color.r * 256.0f + 0.5f);
g = (RIuint32)(color.g * 256.0f + 0.5f);
b = (RIuint32)(color.b * 256.0f + 0.5f);
a = (RIuint32)(color.a * 256.0f + 0.5f);
}
RI_INLINE void IntegerColor::fromPackedColor(RIuint32 packedColor, const Color::Descriptor& desc)
{
/* \note Expand MUST be done separately! */
if (desc.luminanceBits)
{
r = (packedColor >> desc.luminanceShift) & ((1u << desc.luminanceBits)-1);
g = b = r;
}
else
{
r = (packedColor >> desc.redShift) & ((1u << desc.redBits)-1);
g = (packedColor >> desc.greenShift) & ((1u << desc.greenBits)-1);
b = (packedColor >> desc.blueShift) & ((1u << desc.blueBits)-1);
}
if (desc.alphaBits)
a = (packedColor >> desc.alphaShift) & ((1u << desc.alphaBits)-1);
else
a = 255;
}
/**
* \brief Expand color to larger (or same) bit depth as in the OpenVG specification.
* \todo 1 and 2 bpp!
*/
RI_INLINE RIuint32 expandComponent(RIuint32 c, RIuint32 srcBits)
{
const RIuint32 destBits = 8;
RI_ASSERT(destBits >= srcBits);
if (!srcBits) return 0;
if (srcBits == destBits) return c;
switch (srcBits)
{
case 6:
return (c << 2) | (c >> 4);
case 5:
return (c << 3) | (c >> 2);
case 4:
return (c << 4) | c;
case 2:
return c | (c << 2) | (c << 4) | (c << 6);
default:
RI_ASSERT(srcBits == 1);
if (c) return 0xff;
return 0;
}
}
/**
* \brief Expands integer color representation to internal format (8-bits per component atm.).
* \todo Do nothing when bits == 8.
*/
RI_INLINE void IntegerColor::expandColor(const Color::Descriptor& desc)
{
if (desc.luminanceBits)
{
r = expandComponent(r, desc.luminanceBits);
g = b = r;
a = 255;
} else
{
if (desc.redBits < 8 || desc.luminanceBits < 8)
r = expandComponent(r, desc.redBits);
if (desc.greenBits < 8)
g = expandComponent(g, desc.greenBits);
if (desc.blueBits < 8)
b = expandComponent(b, desc.blueBits);
}
if (desc.alphaBits && desc.alphaBits < 8)
a = expandComponent(a, desc.alphaBits);
if (desc.isAlphaOnly())
{
if (!desc.isPremultiplied())
r = g = b = 255;
else
r = g = b = a;
}
}
/**
* \brief Convert IntegerColor components to destination bitdepth (from internal) by
* shifting. Rounding does not take place.
*/
RI_INLINE void IntegerColor::truncateColor(const Color::Descriptor& desc)
{
if (desc.luminanceBits)
{
RI_ASSERT(desc.redBits == 0 && desc.greenBits == 0 && desc.blueBits == 0);
if (desc.luminanceBits == 1)
{
// Round the 1-bit case a bit better?
r = (r + 128)>>8;
} else if (desc.luminanceBits < 8)
r >>= (8 - desc.luminanceBits);
}
else
{
if (desc.redBits < 8)
r >>= (8 - desc.redBits);
if (desc.greenBits < 8)
g >>= (8 - desc.greenBits);
if (desc.blueBits < 8)
b >>= (8 - desc.blueBits);
}
if (desc.alphaBits < 8)
{
if (desc.alphaBits == 1)
a = (a+128)>>8;
else
a >>= (8 - desc.alphaBits);
}
}
RI_INLINE void IntegerColor::truncateMask(const Color::Descriptor& desc)
{
if (desc.redBits < 8 || desc.luminanceBits < 8)
r >>= (8 - desc.maskBits);
if (desc.greenBits < 8)
g >>= (8 - desc.maskBits);
if (desc.blueBits < 8)
b >>= (8 - desc.maskBits);
if (desc.alphaBits < 8)
a >>= (8 - desc.maskBits);
}
RI_INLINE void IntegerColor::clampToAlpha()
{
if (r > a) r = a;
if (g > a) g = a;
if (b > a) b = a;
}
RI_INLINE void IntegerColor::fromPackedMask(RIuint32 packedMask, const Color::Descriptor& desc)
{
RI_ASSERT(desc.maskBits);
a = (packedMask >> desc.maskShift) & ((1u << desc.maskBits)-1);
}
RI_INLINE void IntegerColor::expandMask(const Color::Descriptor& desc)
{
a = expandComponent(a, desc.maskBits);
r = g = b = a;
}
#if 0
RI_INLINE void IntegerColor::truncateMask(const Color::Descriptor& desc)
{
a >>= (8 - desc.maskBits);
}
#endif
RI_INLINE void IntegerColor::fullLuminanceToRGB(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut)
{
if (premultipliedIn)
unpremultiply();
luminanceToRGB();
if (gammaIn != gammaOut)
{
if (gammaIn)
gammaToLinear();
else
linearToGamma();
}
if (premultipliedOut)
premultiply();
}
RI_INLINE void IntegerColor::fullRGBToLuminance(bool premultipliedIn, bool gammaIn, bool premultipliedOut, bool gammaOut)
{
if (premultipliedIn)
unpremultiply();
if (gammaIn)
gammaToLinear();
rgbToLuminance();
if (gammaOut)
linearToGamma();
if (premultipliedOut)
premultiply();
}
// \todo This should not be needed (only r-channel is used anyway)
RI_INLINE void IntegerColor::luminanceToRGB()
{
g = b = r;
}
// \todo Only write to R!
RI_INLINE void IntegerColor::rgbToLuminance()
{
enum { Rx = 871, Gx = 2929, Bx = 296, Bits = 12 };
//enum { Rx = 54, Gx = 183, Bx = 18, Bits = 8 };
RIuint32 l = Rx * r + Gx * g + Bx * b;
r = g = b = l >> Bits;
}
#if 0
RI_INLINE void IntegerColor::convertFromInternal(const Color::Descriptor& dst)
{
}
#endif
/**
* \brief Convert color from one format to another using integer operations.
* \note Currently expands the color to intermediate format first (8 bits
* per component.
*/
RI_INLINE void IntegerColor::convertToFrom(const Color::Descriptor& dst, const Color::Descriptor& src, bool srcIsMask)
{
if (src.isZeroConversion(dst))
return;
if (src.isShiftConversionToLower(dst))
{
if (dst.luminanceBits)
{
if (dst.luminanceBits == 1)
{
RI_ASSERT(src.luminanceBits == 8);
r = (r + 128)>>8;
}
else
r = r >> (src.luminanceBits - dst.luminanceBits);
} else
{
r = r >> (src.redBits - dst.redBits);
g = g >> (src.greenBits - dst.greenBits);
b = b >> (src.blueBits - dst.blueBits);
}
if (dst.alphaBits)
{
//a = (a+128)>>8;
if (dst.alphaBits == 1)
a = (a+(1<<(src.alphaBits-1)))>>src.alphaBits;
else
a = a >> (src.alphaBits - dst.alphaBits);
}
return;
}
if (!srcIsMask)
expandColor(src);
else
expandMask(src);
if (dst.isLuminance() != src.isLuminance())
{
if (src.isLuminance())
fullLuminanceToRGB(src.isPremultiplied(), src.isNonlinear(), dst.isPremultiplied(), dst.isNonlinear());
else
fullRGBToLuminance(src.isPremultiplied(), src.isNonlinear(), dst.isPremultiplied(), dst.isNonlinear());
}
else if (dst.isNonlinear() != src.isNonlinear())
{
// No luminance/rgb change.
// Change of gamma requires unpremultiplication:
if (src.isPremultiplied() && !(src.isAlphaOnly()))
unpremultiply();
if (src.isNonlinear())
gammaToLinear(src.isLuminance());
else
linearToGamma(src.isLuminance());
if (dst.isPremultiplied() && !(dst.isAlphaOnly()))
premultiply();
}
else
if ((dst.isPremultiplied() != src.isPremultiplied()) && !(dst.isAlphaOnly() || dst.isAlphaOnly()))
{
// \todo Make sure non-alpha formats are properly handled.
if (src.isPremultiplied())
unpremultiply(dst.isLuminance());
else
premultiply(dst.isLuminance());
}
truncateColor(dst);
}
//==============================================================================================
/*-------------------------------------------------------------------*//*!
* \brief Storage and operations for VGImage.
* \param
* \return
* \note
*//*-------------------------------------------------------------------*/
class Surface;
class Image
{
public:
Image(const Color::Descriptor& desc, int width, int height, VGbitfield allowedQuality); //throws bad_alloc
//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.
Image(const Color::Descriptor& desc, int width, int height, int stride, RIuint8* data); //throws bad_alloc
//child image constructor
Image(Image* parent, int x, int y, int width, int height); //throws bad_alloc
~Image();
const Color::Descriptor& getDescriptor() const { return m_desc; }
int getWidth() const { return m_width; }
int getHeight() const { return m_height; }
int getStride() const { return m_stride; }
Image* getParent() const { return m_parent; }
VGbitfield getAllowedQuality() const { return m_allowedQuality; }
void addInUse() { m_inUse++; }
void removeInUse() { RI_ASSERT(m_inUse > 0); m_inUse--; }
int isInUse() const { return m_inUse; }
RIuint8* getData() const { return m_data; }
void addReference() { m_referenceCount++; }
int removeReference() { m_referenceCount--; RI_ASSERT(m_referenceCount >= 0); return m_referenceCount; }
bool overlaps(const Image* src) const;
void setUnsafe(bool unsafe) { if (unsafe && m_desc.maybeUnsafe()) m_unsafeData = unsafe; else m_unsafeData = false; }
bool isUnsafe() const { return m_unsafeData; }
void clear(const Color& clearColor, int x, int y, int w, int h);
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
RI_INLINE static const void* incrementPointer(const void* ptr, int bpp, RIint32 x);
RI_INLINE static void* calculateAddress(const void* basePtr, int bpp, int x, int y, int stride);
static RI_INLINE RIuint32 readPackedPixelFromAddress(const void *ptr, int bpp, int x);
static RI_INLINE void writePackedPixelToAddress(void* ptr, int bpp, int x, RIuint32 packedColor);
RI_INLINE RIuint32 readPackedPixel(int x, int y) const;
Color readPixel(int x, int y) const;
RI_INLINE void writePackedPixelToAddress(void* ptr, int x, RIuint32 packedColor);
void writePackedPixel(int x, int y, RIuint32 packedColor);
void writePixel(int x, int y, const Color& c);
void fillPacked(RIuint32 packedColor);
static RI_INLINE void fillPackedPixels(void* data, int bpp, int x, int y, int stride, int nPixels, RIuint32 packedColor);
RI_INLINE void fillPackedPixels(int x, int y, int nPixels, RIuint32 packedColor);
RI_INLINE void fillPackedRectangle(int x0, int y0, int width, int height, RIuint32 packedColor);
void writeFilteredPixel(int x, int y, const Color& c, VGbitfield channelMask);
RIfloat readMaskPixel(int x, int y) const; //can read any image format
void writeMaskPixel(int x, int y, RIfloat m); //can write only to VG_A_x
Color resample(RIfloat x, RIfloat y, const Matrix3x3& surfaceToImage, VGImageQuality quality, VGTilingMode tilingMode, const Color& tileFillColor); //throws bad_alloc
void makeMipMaps(); //throws bad_alloc
void colorMatrix(const Image& src, const RIfloat* matrix, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
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);
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);
void gaussianBlur(const Image& src, RIfloat stdDeviationX, RIfloat stdDeviationY, VGTilingMode tilingMode, const Color& edgeFillColor, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
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);
void lookupSingle(const Image& src, const RIuint32 * lookupTable, VGImageChannel sourceChannel, bool outputLinear, bool outputPremultiplied, bool filterFormatLinear, bool filterFormatPremultiplied, VGbitfield channelMask);
RI_INLINE static int descriptorToStride(const Color::Descriptor& desc, int width) { return (width*desc.bitsPerPixel+7)/8; };
void getStorageOffset(int& x, int& y) const { x = m_storageOffsetX; y = m_storageOffsetY; }
private:
Image(const Image&); //!< Not allowed.
void operator=(const Image&); //!< Not allowed.
#if defined(RI_DEBUG)
bool ptrInImage(const void* ptr) const;
#endif
Color readTexel(int u, int v, int level, VGTilingMode tilingMode, const Color& tileFillColor) const;
Color::Descriptor m_desc;
int m_width;
int m_height;
VGbitfield m_allowedQuality;
int m_inUse;
int m_stride;
RIuint8* m_data;
int m_referenceCount;
bool m_ownsData;
Image* m_parent;
int m_storageOffsetX;
int m_storageOffsetY;
bool m_unsafeData; // Data may contain incorrect pixel data
#ifndef RI_COMPILE_LLVM_BYTECODE
#endif /* RI_COMPILE_LLVM_BYTECODE */
};
#if defined(RI_DEBUG)
RI_INLINE bool Image::ptrInImage(const void* ptr) const
{
RIuint8* p = (RIuint8*)ptr;
if (p < m_data) return false;
if (p >= (m_data + m_height * m_stride)) return false;
return true;
}
#endif
RI_INLINE const void* Image::incrementPointer(const void* ptr, int bpp, int x)
{
if (bpp >= 8)
return (((RIuint8*)ptr) + (bpp >> 3));
// Increment the pointer only when the byte is actually about to change.
int mask;
if (bpp == 4)
mask = 1;
else if (bpp == 2)
mask = 3;
else
mask = 7;
if ((x & mask) == mask)
return ((RIuint8*)ptr + 1);
return ptr;
}
RI_INLINE void* Image::calculateAddress(const void* basePtr, int bpp, int x, int y, int stride)
{
if (bpp >= 8)
{
return (void*)((RIuint8*)basePtr + y * stride + x * (bpp >> 3));
} else
{
// 4, 2, or 1 bits per pixel
RI_ASSERT(bpp == 4 || bpp == 2 || bpp == 1);
return (void*)((RIuint8*)basePtr + y * stride + ((x * bpp) >> 3));
}
}
RI_INLINE RIuint32 Image::readPackedPixel(int x, int y) const
{
RI_ASSERT(m_data);
RI_ASSERT(x >= 0 && x < m_width);
RI_ASSERT(y >= 0 && y < m_height);
RI_ASSERT(m_referenceCount > 0);
RIuint32 p = 0;
void* ptr = Image::calculateAddress(m_data, m_desc.bitsPerPixel, x+m_storageOffsetX, y+m_storageOffsetY, m_stride);
p = readPackedPixelFromAddress(ptr, m_desc.bitsPerPixel, x+m_storageOffsetX);
return p;
}
RI_INLINE void Image::writePackedPixelToAddress(void* ptr, int bpp, int x, RIuint32 packedColor)
{
// \note packedColor must contain the whole data (including < 8 bpp data)?
switch(bpp)
{
case 32:
{
RIuint32* s = ((RIuint32*)ptr);
*s = (RIuint32)packedColor;
break;
}
case 16:
{
RIuint16* s = ((RIuint16*)ptr);
*s = (RIuint16)packedColor;
break;
}
case 8:
{
RIuint8* s = ((RIuint8*)ptr);
*s = (RIuint8)packedColor;
break;
}
case 4:
{
RIuint8* s = ((RIuint8*)ptr);
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
break;
}
case 2:
{
RIuint8* s = ((RIuint8*)ptr);
*s = (RIuint8)((packedColor << ((x&3)<<1)) | ((unsigned int)*s & ~(0x3 << ((x&3)<<1))));
break;
}
default:
{
RI_ASSERT(bpp == 1);
RIuint8* s = ((RIuint8*)ptr);
*s = (RIuint8)((packedColor << (x&7)) | ((unsigned int)*s & ~(0x1 << (x&7))));
break;
}
}
// m_mipmapsValid = false; // \note Will never do this, must be handled outside this class somehow!
}
/**
* \brief Write packed pixel into address.
* \param x Which x-coordinate (starting from the start of the scanline
* pointed to) is addressed? This is only required for formats
* that have less than 8 bpp.
*/
void Image::writePackedPixelToAddress(void* address, int x, RIuint32 packedColor)
{
writePackedPixelToAddress(address, m_desc.bitsPerPixel, x, packedColor);
}
/**
* \brief Read a packed pixel from a given address. Notice the use of param x!
* \param x Check which part of byte to return if bpp < 8
*/
RI_INLINE RIuint32 Image::readPackedPixelFromAddress(const void *ptr, int bpp, int x)
{
switch(bpp)
{
case 32:
{
RIuint32* s = (RIuint32*)ptr;
return *s;
}
case 16:
{
RIuint16* s = (RIuint16*)ptr;
return (RIuint32)*s;
}
case 8:
{
RIuint8* s = (RIuint8*)ptr;
return (RIuint32)*s;
}
case 4:
{
RIuint8* s = ((RIuint8*)ptr);
return (RIuint32)(*s >> ((x&1)<<2)) & 0xf;
}
case 2:
{
RIuint8* s = ((RIuint8*)ptr);
return (RIuint32)(*s >> ((x&3)<<1)) & 0x3;
}
default:
{
RI_ASSERT(bpp == 1);
RIuint8* s = ((RIuint8*)ptr);
return (RIuint32)(*s >> (x&7)) & 0x1;
}
}
}
RI_INLINE void Image::writePackedPixel(int x, int y, RIuint32 packedColor)
{
RI_ASSERT(m_data);
RI_ASSERT(x >= 0 && x < m_width);
RI_ASSERT(y >= 0 && y < m_height);
RI_ASSERT(m_referenceCount > 0);
x += m_storageOffsetX;
y += m_storageOffsetY;
RIuint8* scanline = m_data + y * m_stride;
switch(m_desc.bitsPerPixel)
{
case 32:
{
RIuint32* s = ((RIuint32*)scanline) + x;
*s = (RIuint32)packedColor;
break;
}
case 16:
{
RIuint16* s = ((RIuint16*)scanline) + x;
*s = (RIuint16)packedColor;
break;
}
case 8:
{
RIuint8* s = ((RIuint8*)scanline) + x;
*s = (RIuint8)packedColor;
break;
}
case 4:
{
RIuint8* s = ((RIuint8*)scanline) + (x>>1);
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
break;
}
case 2:
{
RIuint8* s = ((RIuint8*)scanline) + (x>>2);
*s = (RIuint8)((packedColor << ((x&3)<<1)) | ((unsigned int)*s & ~(0x3 << ((x&3)<<1))));
break;
}
default:
{
RI_ASSERT(m_desc.bitsPerPixel == 1);
RIuint8* s = ((RIuint8*)scanline) + (x>>3);
*s = (RIuint8)((packedColor << (x&7)) | ((unsigned int)*s & ~(0x1 << (x&7))));
break;
}
}
//m_mipmapsValid = false;
}
/**
* \brief Unsafe static method for setting image pixels
*/
RI_INLINE void Image::fillPackedPixels(void* data, int bpp, int x, int y, int stride, int nPixels, RIuint32 packedColor)
{
RI_ASSERT(nPixels > 0);
RI_ASSERT(data);
RIuint8* scanline = (RIuint8*)data + y * stride;
switch(bpp)
{
case 32:
{
RIuint32* s = ((RIuint32*)scanline) + x;
for (int i = 0; i < nPixels; i++)
s[i] = packedColor;
break;
}
case 16:
{
RIuint16* s = ((RIuint16*)scanline) + x;
for (int i = 0; i < nPixels; i++)
s[i] = (RIuint16)packedColor;
break;
}
case 8:
{
RIuint8* s = ((RIuint8*)scanline) + x;
for (int i = 0; i < nPixels; i++)
s[i] = (RIuint8)packedColor;
break;
}
case 4:
{
//RI_ASSERT((packedColor & 0xf) == 0);
//packedColor &= 0xf;
RIuint8* s = ((RIuint8*)scanline) + (x>>1);
if (x & 1)
{
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
s++;
x++;
nPixels--;
}
RI_ASSERT(!(x&1));
int c = nPixels / 2;
RIuint8 bytePacked = packedColor | (packedColor << 4);
while (c)
{
*s++ = bytePacked;
c--;
x+=2;
}
nPixels &= 1;
if (nPixels)
{
*s = (RIuint8)((packedColor << ((x&1)<<2)) | ((unsigned int)*s & ~(0xf << ((x&1)<<2))));
s++;
x++;
nPixels--;
}
RI_ASSERT(nPixels == 0);
break;
}
case 2:
{
// This case should not be needed!
RI_ASSERT(false);
RIuint8* s = ((RIuint8*)scanline) + (x>>2);
*s = (RIuint8)((packedColor << ((x&3)<<1)) | ((unsigned int)*s & ~(0x3 << ((x&3)<<1))));
break;
}
default:
{
RI_ASSERT(bpp == 1);
RIuint8* s = ((RIuint8*)scanline) + (x>>3);
// \todo Get this as input instead?
RI_ASSERT(packedColor == 1 || packedColor == 0);
RIuint8 fullyPacked = (RIuint8)(-(RIint8)packedColor);
if (x & 7)
{
// Handle the first byte:
RIuint8 o = *s;
int a = x&7;
RI_ASSERT(a>=1);
int b = RI_INT_MIN(a + nPixels, 8);
RI_ASSERT(b > a);
RIuint8 emask = (1u << b)-1;
RIuint8 mask = (0xffu<<a) & emask;
RI_ASSERT(mask>0);
RI_ASSERT(mask<=254);
*s++ = (o&(~mask))|(fullyPacked & mask);
nPixels -= 8-(x&7);
x += 8-(x&7);
}
if (nPixels < 0)
return;
RI_ASSERT(!(x&1));
int c = nPixels/8;
while (c)
{
*s++ = fullyPacked;
c--;
x+=8;
}
nPixels -= ((nPixels/8) * 8);
if (nPixels)
{
RI_ASSERT((x&7) == 0);
RIuint8 o = *s;
int b = nPixels;
RI_ASSERT(b<=7);
RIuint8 mask = (1u<<b)-1;
RI_ASSERT(mask <= 127);
*s++ = (o&(~mask))|(fullyPacked & mask);
}
break;
}
}
//m_mipmapsValid = false;
}
RI_INLINE void Image::fillPackedPixels(int x, int y, int nPixels, RIuint32 packedColor)
{
fillPackedPixels((void*)m_data, m_desc.bitsPerPixel, x + m_storageOffsetX, y + m_storageOffsetY, m_stride, nPixels, packedColor);
}
RI_INLINE void Image::fillPackedRectangle(int x0, int y0, int width, int height, RIuint32 packedColor)
{
int y = y0;
while (height)
{
fillPackedPixels(x0, y, width, packedColor);
y++;
height--;
}
}
/*-------------------------------------------------------------------*//*!
* \brief Surface class abstracting multisampled rendering surface.
* \param
* \return
* \note
*//*-------------------------------------------------------------------*/
class Surface
{
public:
Surface(const Color::Descriptor& desc, int width, int height, int numSamples); //throws bad_alloc
Surface(Image* image); //throws bad_alloc
Surface(const Color::Descriptor& desc, int width, int height, int stride, RIuint8* data); //throws bad_alloc
~Surface();
RI_INLINE const Image* getImage() const {return m_image;}
RI_INLINE const Color::Descriptor& getDescriptor() const { return m_image->getDescriptor(); }
RI_INLINE int getWidth() const { return m_width; }
RI_INLINE int getHeight() const { return m_height; }
RI_INLINE int getNumSamples() const { return m_numSamples; }
RI_INLINE void addReference() { m_referenceCount++; }
RI_INLINE int removeReference() { m_referenceCount--; RI_ASSERT(m_referenceCount >= 0); return m_referenceCount; }
RI_INLINE int isInUse() const { return m_image->isInUse(); }
RI_INLINE bool isInUse(Image* image) const { return image == m_image ? true : false; }
void clear(const Color& clearColor, int x, int y, int w, int h, const Array<Rectangle>* scissors = NULL);
#if 0
// Currently does not support msaa surfaces
void blit(const Image& src, int sx, int sy, int dx, int dy, int w, int h); //throws bad_alloc
void blit(const Image& src, int sx, int sy, int dx, int dy, int w, int h, const Array<Rectangle>& scissors); //throws bad_alloc
void blit(const Surface* src, int sx, int sy, int dx, int dy, int w, int h); //throws bad_alloc
void blit(const Surface* src, int sx, int sy, int dx, int dy, int w, int h, const Array<Rectangle>& scissors); //throws bad_alloc
#endif
void mask(DynamicBlitter& blitter, const Image* src, VGMaskOperation operation, int x, int y, int w, int h);
RI_INLINE void writePackedPixelToAddress(void* address, int x, RIuint32 p) { m_image->writePackedPixelToAddress(address, x, p); }
RI_INLINE RIuint32 readPackedSample(int x, int y, int sample) const { return m_image->readPackedPixel(x*m_numSamples+sample, y); }
RI_INLINE Color readSample(int x, int y, int sample) const { return m_image->readPixel(x*m_numSamples+sample, y); }
RI_INLINE void writePackedSample(int x, int y, int sample, RIuint32 p) { m_image->writePackedPixel(x*m_numSamples+sample, y, p); }
RI_INLINE void writeSample(int x, int y, int sample, const Color& c) { m_image->writePixel(x*m_numSamples+sample, y, c); }
RI_INLINE void fillPackedSamples(int x, int y, int nPixels, RIuint32 p);
RIfloat readMaskCoverage(int x, int y) const;
void writeMaskCoverage(int x, int y, RIfloat m);
unsigned int readMaskMSAA(int x, int y) const;
void writeMaskMSAA(int x, int y, unsigned int m);
RIuint32 FSAAResolvePacked(int x, int y) const;
Color FSAAResolve(int x, int y) const; //for fb=>img: vgGetPixels, vgReadPixels
private:
Surface(const Surface&); //!< Not allowed.
void operator=(const Surface&); //!< Not allowed.
struct ScissorEdge
{
ScissorEdge() : x(0), miny(0), maxy(0), direction(0) {}
bool operator<(const ScissorEdge& e) const { return x < e.x; }
int x;
int miny;
int maxy;
int direction; //1 start, -1 end
};
int m_width;
int m_height;
int m_numSamples;
int m_referenceCount;
public:
// \todo TERO: Broke the design of this by making it public, make proper
// friend/etc. C++ accessor for optimized pixel-pipelines. Combine with the
// removal of (remnants of) the FSAA support.
Image* m_image;
};
RI_INLINE void Surface::fillPackedSamples(int x, int y, int nPixels, RIuint32 p)
{
m_image->fillPackedPixels(x, y, nPixels, p);
}
/*-------------------------------------------------------------------*//*!
* \brief Drawable class for encapsulating color and mask buffers.
* \param
* \return
* \note
*//*-------------------------------------------------------------------*/
class Drawable
{
public:
Drawable(const Color::Descriptor& desc, int width, int height, int numSamples, int maskBits); //throws bad_alloc
Drawable(Image* image, int maskBits); //throws bad_alloc
Drawable(const Color::Descriptor& desc, int width, int height, int stride, RIuint8* data, int maskBits); //throws bad_alloc
~Drawable();
RI_INLINE const Color::Descriptor& getDescriptor() const { return m_color->getDescriptor(); }
RI_INLINE int getNumMaskBits() const { if(!m_mask) return 0; return m_mask->getDescriptor().alphaBits; }
RI_INLINE int getWidth() const { return m_color->getWidth(); }
RI_INLINE int getHeight() const { return m_color->getHeight(); }
RI_INLINE int getNumSamples() const { return m_color->getNumSamples(); }
RI_INLINE void addReference() { m_referenceCount++; }
RI_INLINE int removeReference() { m_referenceCount--; RI_ASSERT(m_referenceCount >= 0); return m_referenceCount; }
RI_INLINE int isInUse() const { return m_color->isInUse() || (m_mask && m_mask->isInUse()); }
RI_INLINE bool isInUse(Image* image) const { return m_color->isInUse(image) || (m_mask && m_mask->isInUse(image)); }
RI_INLINE Surface* getColorBuffer() const { return m_color; }
RI_INLINE Surface* getMaskBuffer() const { return m_mask; }
void resize(VGContext* context, int newWidth, int newHeight); //throws bad_alloc
private:
Drawable(const Drawable&); //!< Not allowed.
void operator=(const Drawable&); //!< Not allowed.
int m_referenceCount;
Surface* m_color;
Surface* m_mask;
};
//==============================================================================================
} //namespace OpenVGRI
//==============================================================================================
#endif /* __RIIMAGE_H */