/* * The ManaPlus Client * Copyright (C) 2004-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * Copyright (C) 2009 Aethyra Development Team * Copyright (C) 2011-2013 The ManaPlus Developers * * This file is part of The ManaPlus Client. * * 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 * 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, see <http://www.gnu.org/licenses/>. */ #include "gui/sdlfont.h" #include "client.h" #include "logger.h" #include "main.h" #include "sdlgraphics.h" #include "resources/image.h" #include "resources/imagehelper.h" #include "resources/resourcemanager.h" #include "resources/surfaceimagehelper.h" #include "utils/paths.h" #include "utils/sdlcheckutils.h" #include <guichan/exception.hpp> #include "debug.h" const unsigned int CACHE_SIZE = 256; const unsigned int CACHE_SIZE_SMALL1 = 2; const unsigned int CACHE_SIZE_SMALL2 = 50; const unsigned int CACHE_SIZE_SMALL3 = 170; const unsigned int CLEAN_TIME = 7; const int OUTLINE_SIZE = 1; bool SDLFont::mOpengl(true); char *strBuf; #ifdef UNITTESTS int sdlTextChunkCnt = 0; #endif SDLTextChunkSmall::SDLTextChunkSmall(const std::string &text0, const gcn::Color &color0, const gcn::Color &color1) : text(text0), color(color0), color2(color1) { } SDLTextChunkSmall::SDLTextChunkSmall(const SDLTextChunkSmall &old) : text(old.text), color(old.color), color2(old.color2) { } bool SDLTextChunkSmall::operator==(const SDLTextChunkSmall &chunk) const { return (chunk.text == text && chunk.color == color && chunk.color2 == color2); } bool SDLTextChunkSmall::operator<(const SDLTextChunkSmall &chunk) const { if (chunk.text != text) return chunk.text > text; const gcn::Color &c = chunk.color; if (c.r != color.r) return c.r > color.r; if (c.g != color.g) return c.g > color.g; if (c.b != color.b) return c.b > color.b; const gcn::Color &c2 = chunk.color2; if (c2.r != color2.r) return c2.r > color2.r; if (c2.g != color2.g) return c2.g > color2.g; if (c2.b != color2.b) return c2.b > color2.b; if (c.a != color.a && !SDLFont::mOpengl) return c.a > color.a; return false; } SDLTextChunk::SDLTextChunk(const std::string &text0, const gcn::Color &color0, const gcn::Color &color1) : img(nullptr), text(text0), color(color0), color2(color1), prev(nullptr), next(nullptr) { #ifdef UNITTESTS sdlTextChunkCnt ++; #endif } SDLTextChunk::~SDLTextChunk() { delete img; img = nullptr; #ifdef UNITTESTS sdlTextChunkCnt --; #endif } bool SDLTextChunk::operator==(const SDLTextChunk &chunk) const { return (chunk.text == text && chunk.color == color && chunk.color2 == color2); } void SDLTextChunk::generate(TTF_Font *const font, const float alpha) { BLOCK_START("SDLTextChunk::generate") SDL_Color sdlCol; sdlCol.b = static_cast<uint8_t>(color.b); sdlCol.r = static_cast<uint8_t>(color.r); sdlCol.g = static_cast<uint8_t>(color.g); #ifdef USE_SDL2 sdlCol.a = 255; #else sdlCol.unused = 0; #endif getSafeUtf8String(text, strBuf); SDL_Surface *surface = MTTF_RenderUTF8_Blended( font, strBuf, sdlCol); if (!surface) { img = nullptr; BLOCK_END("SDLTextChunk::generate") return; } const int width = surface->w; const int height = surface->h; if (color.r != color2.r || color.g != color2.g || color.b != color2.b) { // outlining SDL_Color sdlCol2; SDL_Surface *const background = imageHelper->create32BitSurface( width, height); if (!background) { img = nullptr; MSDL_FreeSurface(surface); BLOCK_END("SDLTextChunk::generate") return; } sdlCol2.b = static_cast<uint8_t>(color2.b); sdlCol2.r = static_cast<uint8_t>(color2.r); sdlCol2.g = static_cast<uint8_t>(color2.g); #ifdef USE_SDL2 sdlCol2.a = 255; #else sdlCol2.unused = 0; #endif SDL_Surface *const surface2 = MTTF_RenderUTF8_Blended( font, strBuf, sdlCol2); if (!surface2) { img = nullptr; MSDL_FreeSurface(surface); BLOCK_END("SDLTextChunk::generate") return; } SDL_Rect rect = { OUTLINE_SIZE, 0, static_cast<Uint16>(surface->w), static_cast<Uint16>(surface->h) }; SurfaceImageHelper::combineSurface(surface2, nullptr, background, &rect); rect.x = -OUTLINE_SIZE; SurfaceImageHelper::combineSurface(surface2, nullptr, background, &rect); rect.x = 0; rect.y = -OUTLINE_SIZE; SurfaceImageHelper::combineSurface(surface2, nullptr, background, &rect); rect.y = OUTLINE_SIZE; SurfaceImageHelper::combineSurface(surface2, nullptr, background, &rect); rect.x = 0; rect.y = 0; SurfaceImageHelper::combineSurface(surface, nullptr, background, &rect); MSDL_FreeSurface(surface); MSDL_FreeSurface(surface2); surface = background; } img = imageHelper->createTextSurface( surface, width, height, alpha); MSDL_FreeSurface(surface); BLOCK_END("SDLTextChunk::generate") } TextChunkList::TextChunkList() : start(nullptr), end(nullptr), size(0), search(), searchWidth() { } void TextChunkList::insertFirst(SDLTextChunk *const item) { SDLTextChunk *const oldFirst = start; if (start) start->prev = item; item->prev = nullptr; if (oldFirst) item->next = oldFirst; else end = item; start = item; size ++; search[SDLTextChunkSmall(item->text, item->color, item->color2)] = item; searchWidth[item->text] = item; } void TextChunkList::moveToFirst(SDLTextChunk *item) { if (item == start) return; SDLTextChunk *oldPrev = item->prev; if (oldPrev) oldPrev->next = item->next; SDLTextChunk *oldNext = item->next; if (oldNext) oldNext->prev = item->prev; else end = oldPrev; SDLTextChunk *const oldFirst = start; if (start) start->prev = item; item->prev = nullptr; item->next = oldFirst; start = item; } void TextChunkList::removeBack() { SDLTextChunk *oldEnd = end; if (oldEnd) { end = oldEnd->prev; if (end) end->next = nullptr; else start = nullptr; search.erase(SDLTextChunkSmall(oldEnd->text, oldEnd->color, oldEnd->color2)); searchWidth.erase(oldEnd->text); delete oldEnd; size --; } } void TextChunkList::removeBack(int n) { SDLTextChunk *item = end; while (n && item) { n --; SDLTextChunk *oldEnd = item; item = item->prev; search.erase(SDLTextChunkSmall(oldEnd->text, oldEnd->color, oldEnd->color2)); searchWidth.erase(oldEnd->text); delete oldEnd; size --; } if (item) { item->next = nullptr; end = item; } else { start = nullptr; end = nullptr; } } void TextChunkList::clear() { search.clear(); searchWidth.clear(); SDLTextChunk *item = start; while (item) { SDLTextChunk *item2 = item->next; delete item; item = item2; } start = nullptr; end = nullptr; size = 0; } static int fontCounter; SDLFont::SDLFont(std::string filename, const int size, const int style) : mFont(nullptr), mCreateCounter(0), mDeleteCounter(0), mCleanTime(cur_time + CLEAN_TIME) { const ResourceManager *const resman = ResourceManager::getInstance(); if (fontCounter == 0) { mOpengl = imageHelper->useOpenGL(); if (TTF_Init() == -1) { throw GCN_EXCEPTION("Unable to initialize SDL_ttf: " + std::string(TTF_GetError())); } } if (!fontCounter) { strBuf = new char[65535]; memset(strBuf, 0, 65535); } ++fontCounter; fixDirSeparators(filename); mFont = TTF_OpenFont(resman->getPath(filename).c_str(), size); if (!mFont) { logger->log("Error finding font " + filename); std::string backFile = "fonts/dejavusans.ttf"; mFont = TTF_OpenFont(resman->getPath( fixDirSeparators(backFile)).c_str(), size); if (!mFont) { throw GCN_EXCEPTION("SDLSDLFont::SDLSDLFont: " + std::string(TTF_GetError())); } } TTF_SetFontStyle(mFont, style); } SDLFont::~SDLFont() { TTF_CloseFont(mFont); mFont = nullptr; --fontCounter; clear(); if (fontCounter == 0) { TTF_Quit(); delete []strBuf; } } void SDLFont::loadFont(std::string filename, const int size, const int style) { const ResourceManager *const resman = ResourceManager::getInstance(); if (fontCounter == 0 && TTF_Init() == -1) { logger->log("Unable to initialize SDL_ttf: " + std::string(TTF_GetError())); return; } fixDirSeparators(filename); TTF_Font *const font = TTF_OpenFont( resman->getPath(filename).c_str(), size); if (!font) { logger->log("SDLSDLFont::SDLSDLFont: " + std::string(TTF_GetError())); return; } if (mFont) TTF_CloseFont(mFont); mFont = font; TTF_SetFontStyle(mFont, style); clear(); } void SDLFont::clear() { for (size_t f = 0; f < CACHES_NUMBER; f ++) mCache[f].clear(); } void SDLFont::drawString(gcn::Graphics *const graphics, const std::string &text, const int x, const int y) { BLOCK_START("SDLFont::drawString") if (text.empty()) { BLOCK_END("SDLFont::drawString") return; } Graphics *const g = dynamic_cast<Graphics *const>(graphics); if (!g) return; gcn::Color col = g->getColor(); const gcn::Color &col2 = g->getColor2(); const float alpha = static_cast<float>(col.a) / 255.0f; /* The alpha value is ignored at string generation so avoid caching the * same text with different alpha values. */ col.a = 255; const unsigned char chr = text[0]; TextChunkList *const cache = &mCache[chr]; std::map<SDLTextChunkSmall, SDLTextChunk*> &search = cache->search; std::map<SDLTextChunkSmall, SDLTextChunk*>::iterator i = search.find(SDLTextChunkSmall(text, col, col2)); if (i != search.end()) { SDLTextChunk *const chunk2 = (*i).second; cache->moveToFirst(chunk2); Image *const image = chunk2->img; if (image) { image->setAlpha(alpha); g->drawImage(image, x, y); } } else { if (cache->size >= CACHE_SIZE) { #ifdef DEBUG_FONT_COUNTERS mDeleteCounter ++; #endif cache->removeBack(); } #ifdef DEBUG_FONT_COUNTERS mCreateCounter ++; #endif SDLTextChunk *chunk2 = new SDLTextChunk(text, col, col2); chunk2->generate(mFont, alpha); cache->insertFirst(chunk2); const Image *const image = chunk2->img; if (image) g->drawImage(image, x, y); } BLOCK_END("SDLFont::drawString") } void SDLFont::slowLogic(const int rnd) { BLOCK_START("SDLFont::slowLogic") if (!mCleanTime) { mCleanTime = cur_time + CLEAN_TIME + rnd; } else if (mCleanTime < cur_time) { doClean(); mCleanTime = cur_time + CLEAN_TIME + rnd; } BLOCK_END("SDLFont::slowLogic") } int SDLFont::getWidth(const std::string &text) const { if (text.empty()) return 0; const unsigned char chr = text[0]; TextChunkList *const cache = &mCache[chr]; std::map<std::string, SDLTextChunk*> &search = cache->searchWidth; std::map<std::string, SDLTextChunk*>::iterator i = search.find(text); if (i != search.end()) { SDLTextChunk *const chunk = (*i).second; cache->moveToFirst(chunk); const Image *const image = chunk->img; if (image) return image->getWidth(); else return 0; } // if string was not drawed int w, h; getSafeUtf8String(text, strBuf); TTF_SizeUTF8(mFont, strBuf, &w, &h); return w; } int SDLFont::getHeight() const { return TTF_FontHeight(mFont); } void SDLFont::doClean() { for (unsigned int f = 0; f < CACHES_NUMBER; f ++) { TextChunkList *const cache = &mCache[f]; const size_t size = cache->size; #ifdef DEBUG_FONT_COUNTERS logger->log("ptr: %d, size: %d", f, size); #endif if (size > CACHE_SIZE_SMALL3) { #ifdef DEBUG_FONT_COUNTERS mDeleteCounter += 100; #endif cache->removeBack(100); #ifdef DEBUG_FONT_COUNTERS logger->log("delete3"); #endif } else if (size > CACHE_SIZE_SMALL2) { #ifdef DEBUG_FONT_COUNTERS mDeleteCounter += 20; #endif cache->removeBack(20); #ifdef DEBUG_FONT_COUNTERS logger->log("delete2"); #endif } else if (size > CACHE_SIZE_SMALL1) { #ifdef DEBUG_FONT_COUNTERS mDeleteCounter ++; #endif cache->removeBack(); #ifdef DEBUG_FONT_COUNTERS logger->log("delete1"); #endif } } } TextChunkList *SDLFont::getCache() const { return mCache; }