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engines/tetraedge/te/te_font2.cpp
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231
engines/tetraedge/te/te_font2.cpp
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "tetraedge/te/te_font2.h"
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#include "tetraedge/tetraedge.h"
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#include "tetraedge/te/te_3d_object2.h"
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#include "tetraedge/te/te_core.h"
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namespace Tetraedge {
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bool operator==(const KernChars &l, const KernChars &r) {
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return l._c1 == r._c1 && l._c2 == r._c2;
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}
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TeFont2::TeFont2() : _numChars(0), _hasKernData(false), _maxHeight(0) {
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}
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TeFont2::~TeFont2() {
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}
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bool TeFont2::load(const Common::Path &path) {
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if (_loadedPath == path)
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return true; // already open
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TeCore *core = g_engine->getCore();
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TetraedgeFSNode node = core->findFile(path);
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return load(node);
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}
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bool TeFont2::load(const TetraedgeFSNode &node) {
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const Common::Path path = node.getPath();
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unload();
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setAccessName(path);
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_loadedPath = path;
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if (!node.exists()) {
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warning("TeFont2::load: Can't read from %s", node.toString().c_str());
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return false;
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}
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Common::ScopedPtr<Common::SeekableReadStream> file(node.createReadStream());
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if (!Te3DObject2::loadAndCheckFourCC(*file, "TESF")) {
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warning("TeFont2::load: Invalid magic in %s", node.toString().c_str());
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return false;
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}
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_numChars = file->readUint32LE();
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if (_numChars > 65535)
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error("TeFont2::load: improbable number of char points %d", _numChars);
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TeVector2s32::deserialize(*file, _somePt);
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TeVector3f32::deserialize(*file, _someVec);
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_hasKernData = (file->readByte() != 0);
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if (_hasKernData) {
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uint32 numKernData = file->readUint32LE();
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if (numKernData > 10000)
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error("TeFont2::load: improbable number of kerning points %d", numKernData);
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for (uint32 i = 0; i < numKernData; i++) {
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KernChars kc;
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TeVector3f32 vec;
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kc._c1 = file->readUint32LE();
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kc._c2 = file->readUint32LE();
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vec.x() = file->readFloatLE();
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vec.y() = file->readFloatLE();
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_kernData[kc] = vec;
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//debug("KernChars: '%c'-'%c' (%.2f, %.2f)", (char)kc._c1, (char)kc._c2, vec.x(), vec.y());
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}
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}
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for (uint32 i = 0; i < _numChars; i++) {
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GlyphData2 g;
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g._xSz = file->readFloatLE();
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g._ySz = file->readFloatLE();
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_maxHeight = MAX(_maxHeight, g._ySz);
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g._xOff = file->readFloatLE();
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g._yOff = file->readFloatLE();
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g._xAdvance = file->readFloatLE();
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// TODO: What are these other floats?
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for (uint j = 0; j < 3; j++)
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g._floats[j] = file->readFloatLE();
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g._vec.x() = file->readFloatLE();
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g._vec.y() = file->readFloatLE();
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_glyphs.push_back(g);
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uint32 charNo = file->readUint32LE();
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_uintArray.push_back(charNo);
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/*
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if (i >= 35 && i <= 127)
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debug("Char data %c: sz (%.1f %.1f) off (%.1f %.1f) xadv %.1f %.1f %.1f %.1f texloc (%.1f, %.1f) %d", (char)i,
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g._xSz, g._ySz, g._xOff, g._yOff, g._xAdvance, g._floats[0], g._floats[1], g._floats[2],
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g._vec.x(), g._vec.y(), charNo);
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*/
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}
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if (!_texture.load(*file, "png")) {
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warning("Invalid png data in %s", node.toString().c_str());
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return false;
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}
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return true;
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}
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void TeFont2::unload() {
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_texture.free();
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_uintArray.clear();
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_glyphs.clear();
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_kernData.clear();
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_numChars = 0;
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}
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int TeFont2::getFontHeight() const {
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return _maxHeight;
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}
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int TeFont2::getMaxCharWidth() const {
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int maxWidth = 0;
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for (auto &glyph : _glyphs) {
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maxWidth = MAX(maxWidth, (int)glyph._xAdvance);
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}
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return maxWidth;
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}
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int TeFont2::getCharWidth(uint32 chr) const {
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if (chr >= _glyphs.size())
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return 0;
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return (int)_glyphs[chr]._xAdvance;
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}
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void TeFont2::drawChar(Graphics::Surface *dst, uint32 chr, int x, int y, uint32 color) const {
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if (chr >= _glyphs.size())
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return;
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if (_texture.empty())
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error("Call to TeFont2::drawChar but no texture loaded");
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const GlyphData2 g = _glyphs[chr];
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if (!g._xSz || !g._ySz)
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return;
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Common::Rect srcRect;
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srcRect.left = (int)g._vec.x();
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srcRect.top = _texture.h - (int)g._vec.y() - g._ySz;
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srcRect.right = srcRect.left + g._xSz;
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srcRect.bottom = srcRect.top + g._ySz;
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int dstX = x + g._xOff;
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int dstY = _maxHeight - g._yOff;
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if (dstX + srcRect.width() > dst->w)
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srcRect.right = srcRect.left + (dst->w - dstX);
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if (dstY + srcRect.height() > dst->h)
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srcRect.bottom = srcRect.top + (dst->h - dstY);
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debug("TeFont2::drawChar %c (%d, %d) from (%d,%d-%d,%d)", chr, x, y,
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srcRect.left, srcRect.top, srcRect.right, srcRect.bottom);
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dst->copyRectToSurface(_texture, dstX, dstY, srcRect);
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}
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int TeFont2::getKerningOffset(uint32 left, uint32 right) const {
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KernChars kc { left, right };
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if (_kernData.contains(kc))
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return (int)_kernData[kc].x();
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return 0;
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}
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TeVector3f32 TeFont2::kerning(uint pxSize, uint isocode1, uint isocode2) {
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KernChars kc { isocode1, isocode2 };
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if (_kernData.contains(kc))
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return _kernData[kc];
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return TeVector3f32();
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}
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Common::Rect TeFont2::getBBox(const Common::String &str, int fontSize) {
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Common::Rect rect;
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for (uint i = 0; i < str.size(); i++) {
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uint c = str[i];
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if (c >= _glyphs.size())
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continue;
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const GlyphData2 &g = _glyphs[c];
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rect.top = MIN(rect.top, (int16)-g._yOff);
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rect.bottom = MAX(rect.bottom, (int16)(-g._yOff + g._ySz));
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rect.right += g._xAdvance;
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if (i < str.size() - 1) {
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rect.right += kerning(fontSize, c, str[i+1]).x();
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}
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}
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return rect;
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}
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Common::Rect TeFont2::getBoundingBox(uint32 chr) const {
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if (chr > _glyphs.size())
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return Common::Rect();
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Common::Rect rect;
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rect.left = (int)_glyphs[chr]._xOff;
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rect.right = rect.left + _glyphs[chr]._xSz;
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rect.top = _maxHeight - _glyphs[chr]._yOff;
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rect.bottom = _maxHeight;
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return rect;
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}
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float TeFont2::height(uint pxSize) {
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return _maxHeight;
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}
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Graphics::Font *TeFont2::getAtSize(uint size) {
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return this;
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}
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} // end namespace Tetraedge
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