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koffice/chalk/colorspaces/wet/kis_wet_colorspace.cc

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/*
* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <limits.h>
#include <stdlib.h>
#include <config.h>
#include LCMS_HEADER
#include <tqimage.h>
#include <tdelocale.h>
#include <kdebug.h>
#include <kis_debug_areas.h>
#include "kis_abstract_colorspace.h"
#include "kis_colorspace_factory_registry.h"
#include "kis_image.h"
#include "kis_wet_colorspace.h"
#include "wetphysicsfilter.h"
#include "kis_integer_maths.h"
namespace {
static const WetPix m_paint = { 707, 0, 707, 0, 707, 0, 240, 0 };
/* colors from Curtis et al, Siggraph 97 */
static const WetPix m_paintbox[] = {
{496, 0, 16992, 0, 3808, 0, 0, 0},
{16992, 9744, 21712, 6400, 25024, 3296, 0, 0},
{6512, 6512, 6512, 4880, 11312, 0, 0, 0},
{16002, 0, 2848, 0, 16992, 0, 0, 0},
{22672, 0, 5328, 2272, 4288, 2640, 0, 0},
{8000, 0, 16992, 0, 28352, 0, 0, 0},
{5696, 5696, 12416, 2496, 28352, 0, 0, 0},
{0, 0, 5136, 0, 28352, 0, 0, 0},
{2320, 1760, 7344, 4656, 28352, 0, 0, 0},
{8000, 0, 3312, 0, 5504, 0, 0, 0},
{13680, 0, 16992, 0, 3312, 0, 0, 0},
{5264, 5136, 1056, 544, 6448, 6304, 0, 0},
{11440, 11440, 11440, 11440, 11440, 11440, 0, 0},
{11312, 0, 11312, 0, 11312, 0, 0, 0},
{0, 0, 0, 0, 0, 0, 0, 0} };
static const int m_nPaints = 15;
}
void wetPixToDouble(WetPixDbl * dst, WetPix *src)
{
dst->rd = (1.0 / 8192.0) * src->rd;
dst->rw = (1.0 / 8192.0) * src->rw;
dst->gd = (1.0 / 8192.0) * src->gd;
dst->gw = (1.0 / 8192.0) * src->gw;
dst->bd = (1.0 / 8192.0) * src->bd;
dst->bw = (1.0 / 8192.0) * src->bw;
dst->w = (1.0 / 8192.0) * src->w;
dst->h = (1.0 / 8192.0) * src->h;
}
void wetPixFromDouble(WetPix * dst, WetPixDbl *src)
{
int v;
v = (int)floor (8192.0 * src->rd + 0.5);
dst->rd = CLAMP(v, 0, 65535);
v = (int)floor (8192.0 * src->rw + 0.5);
dst->rw = CLAMP(v, 0, 65535);
v = (int)floor (8192.0 * src->gd + 0.5);
dst->gd = CLAMP(v, 0, 65535);
v = (int)floor (8192.0 * src->gw + 0.5);
dst->gw = CLAMP(v, 0, 65535);
v = (int)floor (8192.0 * src->bd + 0.5);
dst->bd = CLAMP(v, 0, 65535);
v = (int)floor (8192.0 * src->bw + 0.5);
dst->bw = CLAMP(v, 0, 65535);
v = (int)floor (8192.0 * src->w + 0.5);
dst->w = CLAMP(v, 0, 511);
v = (int)floor (8192.0 * src->h + 0.5);
dst->h = CLAMP(v, 0, 511);
}
int getH(int r, int g, int b)
{
int h, s, v;
TQColor c(r,g, b);
c.getHsv(&h, &s, &v);
return h;
}
KisWetColorSpace::KisWetColorSpace(KisColorSpaceFactoryRegistry * parent, KisProfile *p) :
KisAbstractColorSpace(KisID("WET", i18n("Watercolors")), 0, icMaxEnumData, parent, p)
{
wet_init_render_tab();
m_paintNames << i18n("Quinacridone Rose")
<< i18n("Indian Red")
<< i18n("Cadmium Yellow")
<< i18n("Hookers Green")
<< i18n("Cerulean Blue")
<< i18n("Burnt Umber")
<< i18n("Cadmium Red")
<< i18n("Brilliant Orange")
<< i18n("Hansa Yellow")
<< i18n("Phthalo Green")
<< i18n("French Ultramarine")
<< i18n("Interference Lilac")
<< i18n("Titanium White")
<< i18n("Ivory Black")
<< i18n("Pure Water");
m_channels.push_back(new KisChannelInfo(i18n("Red Concentration"), "Rc", 0, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Myth Red"), "Rm", 1, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Green Concentration"), "Gc", 2, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Myth Green"), "Gm", 3, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Blue Concentration"), "Bc", 4, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Myth Blue"), "Bm", 5, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Water Volume"), "W", 6, KisChannelInfo::SUBSTANCE, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Paper Height"), "H", 7, KisChannelInfo::SUBSTANCE, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Red Concentration"), "Rc", 8, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Myth Red"), "Rm", 9, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Green Concentration"), "Gc", 10, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Myth Green"), "Gm", 11, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Blue Concentration"), "Bc", 12, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Myth Blue"), "Bm", 13, KisChannelInfo::COLOR, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Water Volume"), "W", 14, KisChannelInfo::SUBSTANCE, KisChannelInfo::UINT16));
m_channels.push_back(new KisChannelInfo(i18n("Adsorbed Paper Height"), "H", 15, KisChannelInfo::SUBSTANCE, KisChannelInfo::UINT16));
// Store the hue; we'll pick the paintbox color that closest to the given TQColor's hue.
m_conversionMap[getH(240, 32, 160)] = m_paintbox[0]; // Quinacridone Rose
m_conversionMap[getH(159, 88, 43)] = m_paintbox[1]; // Indian Red
m_conversionMap[getH(254, 220, 64)] = m_paintbox[2]; // Cadmium Yellow
m_conversionMap[getH(36, 180, 32)] = m_paintbox[3]; // Hookers Green
m_conversionMap[getH(16, 185, 215)] = m_paintbox[4]; // Cerulean Blue
m_conversionMap[getH(96, 32, 8)] = m_paintbox[5]; // Burnt Umber
m_conversionMap[getH(254, 96, 8)] = m_paintbox[6]; // Cadmium Red
m_conversionMap[getH(255, 136, 8)] = m_paintbox[7]; // Brilliant Orange
m_conversionMap[getH(240, 199, 8)] = m_paintbox[8]; // Hansa Yellow
m_conversionMap[getH(96, 170, 130)] = m_paintbox[9]; // Phthalo Green
m_conversionMap[getH(48, 32, 170)] = m_paintbox[10]; // French Ultramarine
m_conversionMap[getH(118, 16, 135)] = m_paintbox[11]; // Interference Lilac
m_conversionMap[getH(254, 254, 254)] = m_paintbox[12]; // Titanium White
m_conversionMap[getH(64, 64, 74)] = m_paintbox[13]; // Ivory Black
m_paintwetness = false;
phasebig = 0;
}
KisWetColorSpace::~KisWetColorSpace()
{
}
void KisWetColorSpace::fromTQColor(const TQColor& c, TQ_UINT8 *dst, KisProfile * /*profile*/)
{
WetPack* p = reinterpret_cast<WetPack*>(dst);
int h = getH(c.red(), c.green(), c.blue());
int delta = 256;
int key = 0;
TQMap<int, WetPix>::Iterator it;
TQMap<int, WetPix>::Iterator end = m_conversionMap.end();
for (it = m_conversionMap.begin(); it != end; ++it) {
if (abs(it.key() - h) < delta) {
delta = abs(it.key() - h);
key = it.key();
}
}
// Translate the special TQCOlors from our paintbox to wetpaint paints.
if (m_conversionMap.contains(key)) {
(*p).paint = m_conversionMap[key];
(*p).adsorb = m_conversionMap[key]; // or maybe best add water here?
} else {
// water
(*p).paint = m_paintbox[14];
(*p).adsorb = m_paintbox[14];
}
}
void KisWetColorSpace::fromTQColor(const TQColor& c, TQ_UINT8 /*opacity*/, TQ_UINT8 *dst, KisProfile * /*profile*/)
{
fromTQColor(c, dst);
}
TQ_UINT8 KisWetColorSpace::getAlpha(const TQ_UINT8 */*pixel*/) const
{
return OPACITY_OPAQUE;
}
void KisWetColorSpace::setAlpha( TQ_UINT8 * /*pixels*/, TQ_UINT8 /*alpha*/, TQ_INT32 /*nPixels*/) const
{
}
void KisWetColorSpace::multiplyAlpha( TQ_UINT8 * /*pixels*/, TQ_UINT8 /*alpha*/, TQ_INT32 /*nPixels*/)
{
}
void KisWetColorSpace::applyAlphaU8Mask( TQ_UINT8 * /*pixels*/, TQ_UINT8 * /*alpha*/, TQ_INT32 /*nPixels*/)
{
}
void KisWetColorSpace::applyInverseAlphaU8Mask( TQ_UINT8 * /*pixels*/, TQ_UINT8 * /*alpha*/, TQ_INT32 /*nPixels*/)
{
}
TQ_UINT8 KisWetColorSpace::scaleToU8(const TQ_UINT8 * /*srcPixel*/, TQ_INT32 /*channelPos*/)
{
return 0;
}
TQ_UINT16 KisWetColorSpace::scaleToU16(const TQ_UINT8 * /*srcPixel*/, TQ_INT32 /*channelPos*/)
{
return 0;
}
void KisWetColorSpace::toTQColor(const TQ_UINT8 *src, TQColor *c, KisProfile * /*profile*/)
{
TQ_UINT8 * rgb = new TQ_UINT8[3];
TQ_CHECK_PTR(rgb);
memset(rgb, 255, 3);
// Composite the two layers in each pixelSize
WetPack * wp = (WetPack*)src;
// First the adsorption layer
wet_composite(RGB, rgb, &wp->adsorb);
// Then the paint layer (which comes first in our double-packed pixel)
wet_composite(RGB, rgb, &wp->paint);
c->setRgb(rgb[0], rgb[1], rgb[2]);
delete[]rgb;
}
void KisWetColorSpace::toTQColor(const TQ_UINT8 *src, TQColor *c, TQ_UINT8 */*opacity*/, KisProfile * /*profile*/)
{
toTQColor(src, c);
}
void KisWetColorSpace::mixColors(const TQ_UINT8 **/*colors*/, const TQ_UINT8 */*weights*/, TQ_UINT32 /*nColors*/, TQ_UINT8 */*dst*/) const
{
}
TQValueVector<KisChannelInfo *> KisWetColorSpace::channels() const
{
return m_channels;
}
TQ_UINT32 KisWetColorSpace::nChannels() const
{
return 16;
}
TQ_UINT32 KisWetColorSpace::nColorChannels() const
{
return 12;
}
TQ_UINT32 KisWetColorSpace::nSubstanceChannels() const
{
return 4;
}
TQ_UINT32 KisWetColorSpace::pixelSize() const
{
return 32; // This color strategy wants an unsigned short for each
// channel, and every pixel consists of two wetpix structs
// -- even though for many purposes we need only one wetpix
// struct.
}
// XXX: use profiles to display correctly on calibrated displays.
TQImage KisWetColorSpace::convertToTQImage(const TQ_UINT8 *data, TQ_INT32 width, TQ_INT32 height,
KisProfile * /*dstProfile*/,
TQ_INT32 /*renderingIntent*/, float /*exposure*/)
{
TQImage img(width, height, 32);
TQ_UINT8 *rgb = (TQ_UINT8*) img.bits();
const WetPack* wetData = reinterpret_cast<const WetPack*>(data);
// Clear to white -- the following code actually composits the contents of the
// wet pixels with the contents of the image buffer, so they need to be
// prepared
memset(rgb, 255, width * height * 4);
// Composite the two layers in each pixelSize
TQ_INT32 i = 0;
while ( i < width * height) {
// First the adsorption layers
WetPack* wp = const_cast<WetPack*>(&wetData[i]); // XXX don't do these things!
// XXX Probably won't work on MSB archs!
wet_composite(BGR, rgb, &(wp->adsorb));
// Then the paint layer (which comes first in our double-packed pixel)
wet_composite(BGR, rgb, &(wp->paint));
// XXX pay attention to this comment!!
// Display the wet stripes -- this only works if we have at least three scanlines in height,
// because otherwise the phase trick won't work.
// Because we work in a stateless thing, and we can't just draw this wetness
// indication AFTER this (e.g. like the selection), we have to do un nice things:
// Because we (hopefully atm!) don't use the height of the paint wetpix, we abuse
// that to store a state. It's not perfect, but it works for now...
if (m_paintwetness) {
wet_render_wetness(rgb, wp);
}
i++;
rgb += sizeof( TQ_UINT32); // Because the TQImage is 4 bytes deep.
}
return img;
}
void KisWetColorSpace::bitBlt( TQ_UINT8 *dst,
TQ_INT32 dstRowSize,
const TQ_UINT8 *src,
TQ_INT32 srcRowStride,
const TQ_UINT8 */*srcAlphaMask*/,
TQ_INT32 /*maskRowStride*/,
TQ_UINT8 /*opacity*/,
TQ_INT32 rows,
TQ_INT32 cols,
const KisCompositeOp& op)
{
if (rows <= 0 || cols <= 0)
return;
TQ_UINT8 *d;
const TQ_UINT8 *s;
TQ_INT32 linesize = pixelSize() * cols;
d = dst;
s = src;
// Do as if we 'stack' them atop of each other
if (op == COMPOSITE_OVER) {
while (rows-- > 0) {
for (int i = 0; i < cols; i++) {
WetPack* dstPack = &(reinterpret_cast<WetPack*>(d))[i];
const WetPack* srcPack = &(reinterpret_cast<const WetPack*>(s))[i];
combinePixels(&(dstPack->paint), &(dstPack->paint), &(srcPack->paint));
combinePixels(&(dstPack->adsorb), &(dstPack->adsorb), &(srcPack->adsorb));
}
d += dstRowSize; // size??
s += srcRowStride;
}
return;
}
// Just copy the src onto the dst, we don't do fancy things here,
// we do those in the paint op, because we need pressure to determine
// paint deposition.
while (rows-- > 0) {
memcpy(d, s, linesize);
d += dstRowSize; // size??
s += srcRowStride;
}
}
void KisWetColorSpace::wet_init_render_tab()
{
int i;
double d;
int a, b;
wet_render_tab = new TQ_UINT32[4096];
TQ_CHECK_PTR(wet_render_tab);
for (i = 0; i < 4096; i++)
{
d = i * (1.0 / 512.0);
if (i == 0)
a = 0;
else
a = (int) floor (0xff00 / i + 0.5);
b = (int) floor (0x8000 * exp (-d) + 0.5);
wet_render_tab[i] = (a << 16) | b;
}
}
void KisWetColorSpace::wet_composite(RGBMode m, TQ_UINT8 *rgb, WetPix * wet)
{
int r, g, b;
int d, w;
int ab;
int wa;
if (m == RGB)
r = rgb[0];
else
r = rgb[2];
w = wet[0].rw >> 4;
d = wet[0].rd >> 4;
ab = wet_render_tab[d];
wa = (w * (ab >> 16) + 0x80) >> 8;
r = wa + (((r - wa) * (ab & 0xffff) + 0x4000) >> 15);
if (m == RGB)
rgb[0] = r;
else
rgb[2] = r;
// Green is 1 both in RGB as BGR
g = rgb[1];
w = wet[0].gw >> 4;
d = wet[0].gd >> 4;
d = d >= 4096 ? 4095 : d;
ab = wet_render_tab[d];
wa = (w * (ab >> 16) + 0x80) >> 8;
g = wa + (((g - wa) * (ab & 0xffff) + 0x4000) >> 15);
rgb[1] = g;
if (m == RGB)
b = rgb[2];
else
b = rgb[0];
w = wet[0].bw >> 4;
d = wet[0].bd >> 4;
d = d >= 4096 ? 4095 : d;
ab = wet_render_tab[d];
wa = (w * (ab >> 16) + 0x80) >> 8;
b = wa + (((b - wa) * (ab & 0xffff) + 0x4000) >> 15);
if (m == RGB)
rgb[2] = b;
else
rgb[0] = b;
}
void KisWetColorSpace::wet_render_wetness( TQ_UINT8 * rgb, WetPack * pack)
{
int highlight = 255 - (pack->paint.w >> 1);
if (highlight < 255 && ((phase++) % 3 == 0)) {
for (int i = 0; i < 3; i++)
rgb[i] = 255 - (((255 - rgb[i]) * highlight) >> 8);
}
phase &= 3;
}
KisCompositeOpList KisWetColorSpace::userVisiblecompositeOps() const
{
KisCompositeOpList list;
list.append(KisCompositeOp(COMPOSITE_OVER));
return list;
}
TQString KisWetColorSpace::channelValueText(const TQ_UINT8 *U8_pixel, TQ_UINT32 channelIndex) const
{
Q_ASSERT(channelIndex < nChannels());
const TQ_UINT16 *pixel = reinterpret_cast<const TQ_UINT16 *>(U8_pixel);
TQ_UINT32 channelPosition = m_channels[channelIndex]->pos();
return TQString().setNum(pixel[channelPosition]);
}
TQString KisWetColorSpace::normalisedChannelValueText(const TQ_UINT8 *U8_pixel, TQ_UINT32 channelIndex) const
{
Q_ASSERT(channelIndex < nChannels());
const TQ_UINT16 *pixel = reinterpret_cast<const TQ_UINT16 *>(U8_pixel);
TQ_UINT32 channelPosition = m_channels[channelIndex]->pos();
return TQString().setNum(static_cast<float>(pixel[channelPosition]) / UINT16_MAX);
}
TQValueList<KisFilter *> KisWetColorSpace::createBackgroundFilters()
{
TQValueList<KisFilter *> filterList;
KisFilter * f = new WetPhysicsFilter();
filterList << f;
return filterList;
}
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