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224 lines
7.9 KiB
C++
224 lines
7.9 KiB
C++
/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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namespace Seiscomp {
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namespace Gui {
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namespace Map {
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inline void TextureCache::getTexel(QRgb &c, Coord u, Coord v, int level) {
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u.parts.hi = 0;
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v.parts.hi = 0;
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TileIndex id(level, (v.value << level) >> Coord::fraction_shift, (u.value << level) >> Coord::fraction_shift);
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Texture *tex;
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if ( !_lastTile[0] || _lastId[0] != id ) {
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if ( !_lastTile[1] || _lastId[1] != id ) {
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tex = get(id);
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_lastTile[_currentIndex] = tex;
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_lastId[_currentIndex] = id;
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_currentIndex = 1-_currentIndex;
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}
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else {
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tex = _lastTile[1];
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}
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}
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else
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tex = _lastTile[0];
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u.value <<= tex->id.level();
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v.value <<= tex->id.level();
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u.value = Coord::value_type(u.parts.lo) * tex->w;
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v.value = Coord::value_type(v.parts.lo) * tex->h;
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c = tex->data[v.parts.hi*tex->w +u.parts.hi];
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}
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inline void TextureCache::getTexelBilinear(QRgb &c, Coord u, Coord v, int level) {
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u.parts.hi = 0;
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v.parts.hi = 0;
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TileIndex id(level, (v.value << level) >> Coord::fraction_shift, (u.value << level) >> Coord::fraction_shift);
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Texture *tex;
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if ( !_lastTile[0] || _lastId[0] != id ) {
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if ( !_lastTile[1] || _lastId[1] != id ) {
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tex = get(id);
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_lastTile[_currentIndex] = tex;
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_lastId[_currentIndex] = id;
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_currentIndex = 1-_currentIndex;
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}
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else {
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tex = _lastTile[1];
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}
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}
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else
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tex = _lastTile[0];
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u.value <<= tex->id.level();
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v.value <<= tex->id.level();
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u.value = Coord::value_type(u.parts.lo) * tex->w;
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v.value = Coord::value_type(v.parts.lo) * tex->h;
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Coord::part_type itnx = u.parts.hi + 1;
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Coord::part_type itny = v.parts.hi + 1;
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if ( itnx < tex->w ) {
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if ( itny < tex->h ) {
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int tidx = v.parts.hi*tex->w + u.parts.hi;
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QRgb t = tex->data[tidx];
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QRgb tnx = tex->data[tidx + 1];
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QRgb tny = tex->data[tidx + tex->w];
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QRgb tnxy = tex->data[tidx + tex->w + 1];
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Coord::value_type ftx = u.parts.lo;
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Coord::value_type fty = v.parts.lo;
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Coord::value_type iftx = Coord::fraction_max - ftx;
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Coord::value_type ifty = Coord::fraction_max - fty;
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QRgb y0 = qRgb((qRed(t) * iftx + qRed(tnx) * ftx) >> Coord::fraction_shift,
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(qGreen(t) * iftx + qGreen(tnx) * ftx) >> Coord::fraction_shift,
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(qBlue(t) * iftx + qBlue(tnx) * ftx) >> Coord::fraction_shift);
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QRgb y1 = qRgb((qRed(tny) * iftx + qRed(tnxy) * ftx) >> Coord::fraction_shift,
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(qGreen(tny) * iftx + qGreen(tnxy) * ftx) >> Coord::fraction_shift,
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(qBlue(tny) * iftx + qBlue(tnxy) * ftx) >> Coord::fraction_shift);
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c = qRgb((qRed(y0) * ifty + qRed(y1) * fty) >> Coord::fraction_shift,
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(qGreen(y0) * ifty + qGreen(y1) * fty) >> Coord::fraction_shift,
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(qBlue(y0) * ifty + qBlue(y1) * fty) >> Coord::fraction_shift);
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}
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// Interpolate only x
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else {
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int tidx = v.parts.hi*tex->w + u.parts.hi;
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QRgb t = tex->data[tidx];
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QRgb tnx = tex->data[tidx + 1];
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Coord::value_type ftx = u.parts.lo;
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Coord::value_type iftx = Coord::fraction_max - ftx;
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c = qRgb((qRed(t) * iftx + qRed(tnx) * ftx) >> Coord::fraction_shift,
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(qGreen(t) * iftx + qGreen(tnx) * ftx) >> Coord::fraction_shift,
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(qBlue(t) * iftx + qBlue(tnx) * ftx) >> Coord::fraction_shift);
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}
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}
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else {
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// Interpolate only y
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if ( itny < tex->h ) {
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int tidx = v.parts.hi*tex->w + u.parts.hi;
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QRgb t = tex->data[tidx];
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QRgb tny = tex->data[tidx + tex->w];
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Coord::value_type fty = v.parts.lo;
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Coord::value_type ifty = Coord::fraction_max - fty;
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c = qRgb((qRed(t) * ifty + qRed(tny) * fty) >> Coord::fraction_shift,
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(qGreen(t) * ifty + qGreen(tny) * fty) >> Coord::fraction_shift,
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(qBlue(t) * ifty + qBlue(tny) * fty) >> Coord::fraction_shift);
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}
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else
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// Do not interpolate at all
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c = tex->data[v.parts.hi*tex->w +u.parts.hi];
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}
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}
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inline void getTexel(QRgb &c, const QRgb *data, int w, int, Coord u, Coord v) {
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c = data[v.parts.hi*w + u.parts.hi];
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}
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inline void getTexelBilinear(QRgb &c, const QRgb *data, int w, int h, Coord u, Coord v) {
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Coord::part_type itnx = u.parts.hi + 1;
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Coord::part_type itny = v.parts.hi + 1;
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if ( (int)itnx < w ) {
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if ( (int)itny < h ) {
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int tidx = v.parts.hi*w + u.parts.hi;
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QRgb t = data[tidx];
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QRgb tnx = data[tidx + 1];
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QRgb tny = data[tidx + w];
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QRgb tnxy = data[tidx + w + 1];
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Coord::value_type ftx = u.parts.lo;
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Coord::value_type fty = v.parts.lo;
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Coord::value_type iftx = Coord::fraction_max - ftx;
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Coord::value_type ifty = Coord::fraction_max - fty;
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QRgb y0 = qRgba((qRed(t) * iftx + qRed(tnx) * ftx) >> Coord::fraction_shift,
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(qGreen(t) * iftx + qGreen(tnx) * ftx) >> Coord::fraction_shift,
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(qBlue(t) * iftx + qBlue(tnx) * ftx) >> Coord::fraction_shift,
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(qAlpha(t) * iftx + qAlpha(tnx) * ftx) >> Coord::fraction_shift);
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QRgb y1 = qRgba((qRed(tny) * iftx + qRed(tnxy) * ftx) >> Coord::fraction_shift,
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(qGreen(tny) * iftx + qGreen(tnxy) * ftx) >> Coord::fraction_shift,
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(qBlue(tny) * iftx + qBlue(tnxy) * ftx) >> Coord::fraction_shift,
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(qAlpha(tny) * iftx + qAlpha(tnxy) * ftx) >> Coord::fraction_shift);
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c = qRgba((qRed(y0) * ifty + qRed(y1) * fty) >> Coord::fraction_shift,
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(qGreen(y0) * ifty + qGreen(y1) * fty) >> Coord::fraction_shift,
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(qBlue(y0) * ifty + qBlue(y1) * fty) >> Coord::fraction_shift,
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(qAlpha(y0) * ifty + qAlpha(y1) * fty) >> Coord::fraction_shift);
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}
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// Interpolate only x
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else {
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int tidx = v.parts.hi*w + u.parts.hi;
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QRgb t = data[tidx];
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QRgb tnx = data[tidx + 1];
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Coord::value_type ftx = u.parts.lo;
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Coord::value_type iftx = Coord::fraction_max - ftx;
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c = qRgba((qRed(t) * iftx + qRed(tnx) * ftx) >> Coord::fraction_shift,
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(qGreen(t) * iftx + qGreen(tnx) * ftx) >> Coord::fraction_shift,
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(qBlue(t) * iftx + qBlue(tnx) * ftx) >> Coord::fraction_shift,
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(qAlpha(t) * iftx + qAlpha(tnx) * ftx) >> Coord::fraction_shift);
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}
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}
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else {
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// Interpolate only y
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if ( (int)itny < h ) {
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int tidx = v.parts.hi*w + u.parts.hi;
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QRgb t = data[tidx];
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QRgb tny = data[tidx + w];
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Coord::value_type fty = v.parts.lo;
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Coord::value_type ifty = Coord::fraction_max - fty;
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c = qRgba((qRed(t) * ifty + qRed(tny) * fty) >> Coord::fraction_shift,
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(qGreen(t) * ifty + qGreen(tny) * fty) >> Coord::fraction_shift,
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(qBlue(t) * ifty + qBlue(tny) * fty) >> Coord::fraction_shift,
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(qAlpha(t) * ifty + qAlpha(tny) * fty) >> Coord::fraction_shift);
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}
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else
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// Do not interpolate at all
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c = data[v.parts.hi*w + u.parts.hi];
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}
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}
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}
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}
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}
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