Create EGL 1.4 implementation by merging eglrefimpl and EGL from sfopenvg
Subject to some fixes in uiresources and uiaccelerator, this version removes the EGL 1 panics.
A quick attempt to use the compositor renderstage wasn't successful, but not apparently due to EGL issues.
There are a lot of RDebug::Printf statements still in this code, which will be removed in the next commit.
#ifndef __RIIMAGE_H
#define __RIIMAGE_H
/*------------------------------------------------------------------------
*
* OpenVG 1.1 Reference Implementation
* -----------------------------------
*
* Copyright (c) 2007 The Khronos Group Inc.
*
* 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 "openvg.h"
#endif
#ifndef __RIMATH_H
#include "riMath.h"
#endif
#ifndef __RIARRAY_H
#include "riArray.h"
#endif
//==============================================================================================
namespace OpenVGRI
{
/*-------------------------------------------------------------------*//*!
* \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;
}
}
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 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)
};
class Descriptor
{
public:
bool isNonlinear() const { return (internalFormat & NONLINEAR) ? true : false; }
bool isPremultiplied() const { return (internalFormat & PREMULTIPLIED) ? true : false; }
bool isLuminance() const { return (internalFormat & LUMINANCE) ? true : false; }
bool isAlphaOnly() const { return (alphaBits && (redBits+greenBits+blueBits+luminanceBits) == 0) ? true : false; }
int redBits;
int redShift;
int greenBits;
int greenShift;
int blueBits;
int blueShift;
int alphaBits;
int alphaShift;
int luminanceBits;
int luminanceShift;
VGImageFormat format;
InternalFormat internalFormat;
int bitsPerPixel;
};
RI_INLINE Color() : r(0.0f), g(0.0f), b(0.0f), a(0.0f), m_format(lRGBA) {}
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;
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 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
}
//==============================================================================================
/*-------------------------------------------------------------------*//*!
* \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 clear(const Color& clearColor, int x, int y, int w, int h);
void blit(const Image& src, int sx, int sy, int dx, int dy, int w, int h, bool dither); //throws bad_alloc
void blit(const Surface* src, int sx, int sy, int dx, int dy, int w, int h); //throws bad_alloc
Color readPixel(int x, int y) const;
void writePixel(int x, int y, const Color& c);
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);
private:
Image(const Image&); //!< Not allowed.
void operator=(const Image&); //!< Not allowed.
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_mipmapsValid;
Array<Image*> m_mipmaps;
};
/*-------------------------------------------------------------------*//*!
* \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 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);
void clear(const Color& clearColor, int x, int y, int w, int h, const Array<Rectangle>& scissors);
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
void mask(const Image* src, VGMaskOperation operation, int x, int y, int w, int h);
void mask(const Surface* src, VGMaskOperation operation, int x, int y, int w, int h);
RI_INLINE Color readSample(int x, int y, int sample) const { return m_image->readPixel(x*m_numSamples+sample, y); }
RI_INLINE void writeSample(int x, int y, int sample, const Color& c) { m_image->writePixel(x*m_numSamples+sample, y, c); }
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);
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;
Image* m_image;
};
/*-------------------------------------------------------------------*//*!
* \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(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 */