nel/samples/3d/font_perf/main.cpp

   1 // NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
   2 // Copyright (C) 2020  Winch Gate Property Limited
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU Affero General Public License as
   6 // published by the Free Software Foundation, either version 3 of the
   7 // License, or (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU Affero General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU Affero General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #include "nel/misc/types_nl.h"
  18
  19 #include "nel/misc/event_emitter.h"
  20 #include "nel/misc/event_listener.h"
  21 #include "nel/misc/path.h"
  22 #include "nel/misc/random.h"
  23
  24 // look at 3dinit example
  25 #include "nel/3d/nelu.h"
  26
  27 // used for font management
  28 #include "nel/3d/font_manager.h"
  29 #include "nel/3d/computed_string.h"
  30 #include "nel/3d/text_context.h"
  31 #include "nel/3d/driver_user.h"
  32
  33 #ifdef NL_OS_WINDOWS
  34         #ifndef NL_COMP_MINGW
  35                 #define NOMINMAX
  36         #endif
  37         #include <windows.h>
  38 #endif // NL_OS_WINDOWS
  39
  40 #ifndef FONT_DIR
  41 #       define FONT_DIR "."
  42 #endif
  43
  44 using namespace std;
  45 using namespace NL3D;
  46 using namespace NLMISC;
  47
  48 int main(int argc, char **argv)
  49 {
  50         // look at 3dinit example
  51         CNELU::init (800, 600, CViewport(), 32, true, 0, false, false);
  52
  53         NLMISC::CPath::addSearchPath(FONT_DIR);
  54
  55         // create a font manager
  56         CFontManager fontManager;
  57
  58         // set the font cache to 2 megabytes (default is 1mb)
  59         fontManager.setMaxMemory(2000000);
  60
  61         CTextContext tc;
  62
  63         tc.init (CNELU::Driver, &fontManager);
  64
  65         // The first param is the font name (could be ttf, pfb, fon, etc...). The
  66         // second one is optional, it's the font kerning file
  67         tc.setFontGenerator (NLMISC::CPath::lookup("beteckna.ttf"));
  68
  69         NLMISC::CRandom rnd;
  70
  71         uint nbCount = 100000;
  72         TTicks startTick = CTime::getPerformanceTime();
  73         std::string txt;
  74         for(uint i = 0; i < nbCount; ++i)
  75         {
  76                 uint fontSize = rnd.rand(200);
  77                 bool embolden = rnd.rand(1) == 1;
  78                 bool oblique = rnd.rand(1) == 1;
  79                 txt = toString("Lorem ipsum %03d", fontSize);
  80
  81                 CComputedString cs;
  82                 fontManager.computeString(txt, tc.getFontGenerator(), CRGBA::White, fontSize, embolden, oblique, CNELU::Driver, cs);
  83         }
  84
  85         TTicks endTick = CTime::getPerformanceTime();
  86
  87         double deltaTime = CTime::ticksToSecond(endTick-startTick);
  88         std::string msg = toString("Generated %d strings in %.2fs\n", nbCount, deltaTime);
  89
  90         nlinfo("%s", msg.c_str());
  91         printf("%s", msg.c_str());
  92
  93         fontManager.dumpCache ("font_pref_cache_dump.tga");
  94
  95         // look at 3dinit example
  96         CNELU::release();
  97
  98         return EXIT_SUCCESS;
  99 }