mirror of
https://github.com/OpenMW/openmw.git
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401 lines
16 KiB
C++
401 lines
16 KiB
C++
#include "fontloader.hpp"
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#include <stdexcept>
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#include <OgreResourceGroupManager.h>
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#include <OgreTextureManager.h>
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#include <MyGUI_ResourceManager.h>
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#include <MyGUI_FontManager.h>
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#include <MyGUI_ResourceManualFont.h>
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#include <MyGUI_XmlDocument.h>
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#include <MyGUI_FactoryManager.h>
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#include <components/misc/stringops.hpp>
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namespace
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{
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unsigned long utf8ToUnicode(const std::string& utf8)
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{
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size_t i = 0;
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unsigned long unicode;
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size_t todo;
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unsigned char ch = utf8[i++];
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if (ch <= 0x7F)
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{
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unicode = ch;
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todo = 0;
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}
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else if (ch <= 0xBF)
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{
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throw std::logic_error("not a UTF-8 string");
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}
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else if (ch <= 0xDF)
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{
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unicode = ch&0x1F;
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todo = 1;
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}
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else if (ch <= 0xEF)
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{
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unicode = ch&0x0F;
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todo = 2;
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}
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else if (ch <= 0xF7)
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{
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unicode = ch&0x07;
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todo = 3;
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}
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else
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{
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throw std::logic_error("not a UTF-8 string");
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}
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for (size_t j = 0; j < todo; ++j)
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{
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unsigned char ch = utf8[i++];
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if (ch < 0x80 || ch > 0xBF)
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throw std::logic_error("not a UTF-8 string");
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unicode <<= 6;
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unicode += ch & 0x3F;
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}
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if (unicode >= 0xD800 && unicode <= 0xDFFF)
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throw std::logic_error("not a UTF-8 string");
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if (unicode > 0x10FFFF)
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throw std::logic_error("not a UTF-8 string");
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return unicode;
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}
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// getUtf8, aka the worst function ever written.
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// This includes various hacks for dealing with Morrowind's .fnt files that are *mostly*
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// in the expected win12XX encoding, but also have randomly swapped characters sometimes.
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// Looks like the Morrowind developers found standard encodings too boring and threw in some twists for fun.
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std::string getUtf8 (unsigned char c, ToUTF8::Utf8Encoder& encoder, ToUTF8::FromType encoding)
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{
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if (encoding == ToUTF8::WINDOWS_1250)
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{
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// Hacks for polish font
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unsigned char win1250;
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std::map<unsigned char, unsigned char> conv;
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conv[0x80] = 0xc6;
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conv[0x81] = 0x9c;
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conv[0x82] = 0xe6;
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conv[0x83] = 0xb3;
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conv[0x84] = 0xf1;
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conv[0x85] = 0xb9;
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conv[0x86] = 0xbf;
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conv[0x87] = 0x9f;
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conv[0x88] = 0xea;
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conv[0x89] = 0xea;
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conv[0x8a] = 0x0; // not contained in win1250
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conv[0x8b] = 0x0; // not contained in win1250
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conv[0x8c] = 0x8f;
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conv[0x8d] = 0xaf;
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conv[0x8e] = 0xa5;
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conv[0x8f] = 0x8c;
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conv[0x90] = 0xca;
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conv[0x93] = 0xa3;
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conv[0x94] = 0xf6;
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conv[0x95] = 0xf3;
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conv[0x96] = 0xaf;
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conv[0x97] = 0x8f;
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conv[0x99] = 0xd3;
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conv[0x9a] = 0xd1;
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conv[0x9c] = 0x0; // not contained in win1250
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conv[0xa0] = 0xb9;
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conv[0xa1] = 0xaf;
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conv[0xa2] = 0xf3;
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conv[0xa3] = 0xbf;
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conv[0xa4] = 0x0; // not contained in win1250
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conv[0xe1] = 0x8c;
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// Can't remember if this was supposed to read 0xe2, or is it just an extraneous copypaste?
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//conv[0xe1] = 0x8c;
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conv[0xe3] = 0x0; // not contained in win1250
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conv[0xf5] = 0x0; // not contained in win1250
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if (conv.find(c) != conv.end())
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win1250 = conv[c];
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else
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win1250 = c;
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return encoder.getUtf8(std::string(1, win1250));
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}
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else
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return encoder.getUtf8(std::string(1, c));
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}
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void fail (Ogre::DataStreamPtr file, const std::string& fileName, const std::string& message)
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{
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std::stringstream error;
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error << "Font loading error: " << message;
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error << "\n File: " << fileName;
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error << "\n Offset: 0x" << std::hex << file->tell();
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throw std::runtime_error(error.str());
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}
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}
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namespace Gui
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{
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FontLoader::FontLoader(ToUTF8::FromType encoding)
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{
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if (encoding == ToUTF8::WINDOWS_1252)
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mEncoding = ToUTF8::CP437;
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else
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mEncoding = encoding;
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}
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void FontLoader::loadAllFonts(bool exportToFile)
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{
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Ogre::StringVector groups = Ogre::ResourceGroupManager::getSingleton().getResourceGroups ();
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for (Ogre::StringVector::iterator it = groups.begin(); it != groups.end(); ++it)
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{
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Ogre::StringVectorPtr resourcesInThisGroup = Ogre::ResourceGroupManager::getSingleton ().findResourceNames (*it, "*.fnt");
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for (Ogre::StringVector::iterator resource = resourcesInThisGroup->begin(); resource != resourcesInThisGroup->end(); ++resource)
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{
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loadFont(*resource, exportToFile);
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}
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}
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}
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typedef struct
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{
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float x;
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float y;
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} Point;
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typedef struct
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{
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float u1; // appears unused, always 0
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Point top_left;
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Point top_right;
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Point bottom_left;
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Point bottom_right;
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float width;
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float height;
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float u2; // appears unused, always 0
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float kerning;
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float ascent;
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} GlyphInfo;
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void FontLoader::loadFont(const std::string &fileName, bool exportToFile)
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{
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Ogre::DataStreamPtr file = Ogre::ResourceGroupManager::getSingleton().openResource(fileName);
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float fontSize;
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if (file->read(&fontSize, sizeof(fontSize)) < sizeof(fontSize))
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fail(file, fileName, "File too small to be a valid font");
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int one;
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if (file->read(&one, sizeof(int)) < sizeof(int))
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fail(file, fileName, "File too small to be a valid font");
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if (one != 1)
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fail(file, fileName, "Unexpected value");
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if (file->read(&one, sizeof(int)) < sizeof(int))
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fail(file, fileName, "File too small to be a valid font");
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if (one != 1)
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fail(file, fileName, "Unexpected value");
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char name_[284];
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if (file->read(name_, sizeof(name_)) < sizeof(name_))
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fail(file, fileName, "File too small to be a valid font");
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std::string name(name_);
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GlyphInfo data[256];
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if (file->read(data, sizeof(data)) < sizeof(data))
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fail(file, fileName, "File too small to be a valid font");
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file->close();
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// Create the font texture
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std::string bitmapFilename = "Fonts/" + std::string(name) + ".tex";
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Ogre::DataStreamPtr bitmapFile = Ogre::ResourceGroupManager::getSingleton().openResource(bitmapFilename);
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int width, height;
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if (bitmapFile->read(&width, sizeof(int)) < sizeof(int))
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fail(bitmapFile, bitmapFilename, "File too small to be a valid bitmap");
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if (bitmapFile->read(&height, sizeof(int)) < sizeof(int))
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fail(bitmapFile, bitmapFilename, "File too small to be a valid bitmap");
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if (width <= 0 || height <= 0)
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fail(bitmapFile, bitmapFilename, "Width and height must be positive");
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std::vector<Ogre::uchar> textureData;
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textureData.resize(width*height*4);
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if (bitmapFile->read(&textureData[0], width*height*4) < (size_t)(width*height*4))
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fail(bitmapFile, bitmapFilename, "Bitmap does not contain the specified number of pixels");
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bitmapFile->close();
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std::string resourceName;
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if (name.size() >= 5 && Misc::StringUtils::ciEqual(name.substr(0, 5), "magic"))
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resourceName = "Magic Cards";
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else if (name.size() >= 7 && Misc::StringUtils::ciEqual(name.substr(0, 7), "century"))
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resourceName = "Century Gothic";
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else if (name.size() >= 7 && Misc::StringUtils::ciEqual(name.substr(0, 7), "daedric"))
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resourceName = "Daedric";
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else
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return; // no point in loading it, since there is no way of using additional fonts
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std::string textureName = name;
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Ogre::Image image;
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image.loadDynamicImage(&textureData[0], width, height, Ogre::PF_BYTE_RGBA);
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Ogre::TexturePtr texture = Ogre::TextureManager::getSingleton().createManual(textureName,
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Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
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Ogre::TEX_TYPE_2D,
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width, height, 0, Ogre::PF_BYTE_RGBA);
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texture->loadImage(image);
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if (exportToFile)
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image.save(resourceName + ".png");
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// Register the font with MyGUI
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MyGUI::ResourceManualFont* font = static_cast<MyGUI::ResourceManualFont*>(
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MyGUI::FactoryManager::getInstance().createObject("Resource", "ResourceManualFont"));
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// We need to emulate loading from XML because the data members are private as of mygui 3.2.0
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MyGUI::xml::Document xmlDocument;
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MyGUI::xml::ElementPtr root = xmlDocument.createRoot("ResourceManualFont");
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root->addAttribute("name", resourceName);
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MyGUI::xml::ElementPtr defaultHeight = root->createChild("Property");
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defaultHeight->addAttribute("key", "DefaultHeight");
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defaultHeight->addAttribute("value", fontSize);
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MyGUI::xml::ElementPtr source = root->createChild("Property");
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source->addAttribute("key", "Source");
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source->addAttribute("value", std::string(textureName));
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MyGUI::xml::ElementPtr codes = root->createChild("Codes");
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for(int i = 0; i < 256; i++)
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{
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float x1 = data[i].top_left.x*width;
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float y1 = data[i].top_left.y*height;
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float w = data[i].top_right.x*width - x1;
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float h = data[i].bottom_left.y*height - y1;
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ToUTF8::Utf8Encoder encoder(mEncoding);
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unsigned long unicodeVal = utf8ToUnicode(getUtf8(i, encoder, mEncoding));
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MyGUI::xml::ElementPtr code = codes->createChild("Code");
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code->addAttribute("index", unicodeVal);
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code->addAttribute("coord", MyGUI::utility::toString(x1) + " "
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+ MyGUI::utility::toString(y1) + " "
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+ MyGUI::utility::toString(w) + " "
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+ MyGUI::utility::toString(h));
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code->addAttribute("advance", data[i].width);
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code->addAttribute("bearing", MyGUI::utility::toString(data[i].kerning) + " "
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+ MyGUI::utility::toString((fontSize-data[i].ascent)));
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code->addAttribute("size", MyGUI::IntSize(data[i].width, data[i].height));
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// More hacks! The french game uses several win1252 characters that are not included
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// in the cp437 encoding of the font. Fall back to similar available characters.
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if (mEncoding == ToUTF8::CP437)
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{
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std::multimap<int, int> additional; // <cp437, unicode>
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additional.insert(std::make_pair(39, 0x2019)); // apostrophe
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additional.insert(std::make_pair(45, 0x2013)); // dash
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additional.insert(std::make_pair(45, 0x2014)); // dash
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additional.insert(std::make_pair(34, 0x201D)); // right double quotation mark
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additional.insert(std::make_pair(34, 0x201C)); // left double quotation mark
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additional.insert(std::make_pair(44, 0x201A));
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additional.insert(std::make_pair(44, 0x201E));
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additional.insert(std::make_pair(43, 0x2020));
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additional.insert(std::make_pair(94, 0x02C6));
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additional.insert(std::make_pair(37, 0x2030));
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additional.insert(std::make_pair(83, 0x0160));
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additional.insert(std::make_pair(60, 0x2039));
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additional.insert(std::make_pair(79, 0x0152));
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additional.insert(std::make_pair(90, 0x017D));
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additional.insert(std::make_pair(39, 0x2019));
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additional.insert(std::make_pair(126, 0x02DC));
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additional.insert(std::make_pair(84, 0x2122));
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additional.insert(std::make_pair(83, 0x0161));
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additional.insert(std::make_pair(62, 0x203A));
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additional.insert(std::make_pair(111, 0x0153));
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additional.insert(std::make_pair(122, 0x017E));
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additional.insert(std::make_pair(89, 0x0178));
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additional.insert(std::make_pair(156, 0x00A2));
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additional.insert(std::make_pair(46, 0x2026));
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for (std::multimap<int, int>::iterator it = additional.begin(); it != additional.end(); ++it)
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{
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if (it->first != i)
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continue;
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MyGUI::xml::ElementPtr code = codes->createChild("Code");
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code->addAttribute("index", it->second);
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code->addAttribute("coord", MyGUI::utility::toString(x1) + " "
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+ MyGUI::utility::toString(y1) + " "
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+ MyGUI::utility::toString(w) + " "
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+ MyGUI::utility::toString(h));
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code->addAttribute("advance", data[i].width);
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code->addAttribute("bearing", MyGUI::utility::toString(data[i].kerning) + " "
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+ MyGUI::utility::toString((fontSize-data[i].ascent)));
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code->addAttribute("size", MyGUI::IntSize(data[i].width, data[i].height));
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}
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}
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// ASCII vertical bar, use this as text input cursor
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if (i == 124)
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{
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MyGUI::xml::ElementPtr cursorCode = codes->createChild("Code");
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cursorCode->addAttribute("index", MyGUI::FontCodeType::Cursor);
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cursorCode->addAttribute("coord", MyGUI::utility::toString(x1) + " "
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+ MyGUI::utility::toString(y1) + " "
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+ MyGUI::utility::toString(w) + " "
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+ MyGUI::utility::toString(h));
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cursorCode->addAttribute("advance", data[i].width);
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cursorCode->addAttribute("bearing", MyGUI::utility::toString(data[i].kerning) + " "
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+ MyGUI::utility::toString((fontSize-data[i].ascent)));
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cursorCode->addAttribute("size", MyGUI::IntSize(data[i].width, data[i].height));
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}
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// Question mark, use for NotDefined marker (used for glyphs not existing in the font)
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if (i == 63)
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{
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MyGUI::xml::ElementPtr cursorCode = codes->createChild("Code");
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cursorCode->addAttribute("index", MyGUI::FontCodeType::NotDefined);
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cursorCode->addAttribute("coord", MyGUI::utility::toString(x1) + " "
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+ MyGUI::utility::toString(y1) + " "
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+ MyGUI::utility::toString(w) + " "
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+ MyGUI::utility::toString(h));
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cursorCode->addAttribute("advance", data[i].width);
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cursorCode->addAttribute("bearing", MyGUI::utility::toString(data[i].kerning) + " "
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+ MyGUI::utility::toString((fontSize-data[i].ascent)));
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cursorCode->addAttribute("size", MyGUI::IntSize(data[i].width, data[i].height));
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}
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}
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// These are required as well, but the fonts don't provide them
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for (int i=0; i<2; ++i)
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{
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MyGUI::FontCodeType::Enum type;
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if(i == 0)
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type = MyGUI::FontCodeType::Selected;
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else if (i == 1)
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type = MyGUI::FontCodeType::SelectedBack;
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MyGUI::xml::ElementPtr cursorCode = codes->createChild("Code");
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cursorCode->addAttribute("index", type);
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cursorCode->addAttribute("coord", "0 0 0 0");
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cursorCode->addAttribute("advance", "0");
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cursorCode->addAttribute("bearing", "0 0");
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cursorCode->addAttribute("size", "0 0");
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}
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if (exportToFile)
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{
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xmlDocument.createDeclaration();
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xmlDocument.save(resourceName + ".xml");
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}
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font->deserialization(root, MyGUI::Version(3,2,0));
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MyGUI::ResourceManager::getInstance().removeByName(font->getResourceName());
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MyGUI::ResourceManager::getInstance().addResource(font);
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}
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}
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