src/irrlichtwrapper.cpp

   1 #include "irrlichtwrapper.h"
   2 #include "constants.h"
   3
   4 IrrlichtWrapper::IrrlichtWrapper(IrrlichtDevice *device)
   5 {
   6         m_main_thread = get_current_thread_id();
   7         m_device_mutex.Init();
   8         m_device = device;
   9 }
  10
  11 void IrrlichtWrapper::Run()
  12 {
  13         /*
  14                 Fetch textures
  15         */
  16         if(m_get_texture_queue.size() > 0)
  17         {
  18                 GetRequest<TextureSpec, video::ITexture*, u8, u8>
  19                                 request = m_get_texture_queue.pop();
  20
  21                 dstream<<"got texture request with key.name="
  22                                 <<request.key.name<<std::endl;
  23
  24                 GetResult<TextureSpec, video::ITexture*, u8, u8>
  25                                 result;
  26                 result.key = request.key;
  27                 result.callers = request.callers;
  28                 result.item = getTextureDirect(request.key);
  29
  30                 request.dest->push_back(result);
  31         }
  32 }
  33
  34 video::ITexture* IrrlichtWrapper::getTexture(TextureSpec spec)
  35 {
  36         video::ITexture *t = m_texturecache.get(spec.name);
  37         if(t != NULL)
  38                 return t;
  39
  40         if(get_current_thread_id() == m_main_thread)
  41         {
  42                 dstream<<"Getting texture directly: name="
  43                                 <<spec.name<<std::endl;
  44
  45                 t = getTextureDirect(spec);
  46         }
  47         else
  48         {
  49                 // We're gonna ask the result to be put into here
  50                 ResultQueue<TextureSpec, video::ITexture*, u8, u8> result_queue;
  51
  52                 // Throw a request in
  53                 m_get_texture_queue.add(spec, 0, 0, &result_queue);
  54
  55                 dstream<<"Waiting for texture from main thread: "
  56                                 <<spec.name<<std::endl;
  57
  58                 try
  59                 {
  60                         // Wait result for a second
  61                         GetResult<TextureSpec, video::ITexture*, u8, u8>
  62                                         result = result_queue.pop_front(1000);
  63
  64                         // Check that at least something worked OK
  65                         assert(result.key.name == spec.name);
  66
  67                         t = result.item;
  68                 }
  69                 catch(ItemNotFoundException &e)
  70                 {
  71                         dstream<<"Waiting for texture timed out."<<std::endl;
  72                         t = NULL;
  73                 }
  74         }
  75
  76         // Add to cache and return
  77         m_texturecache.set(spec.name, t);
  78         return t;
  79 }
  80
  81 video::ITexture* IrrlichtWrapper::getTexture(const std::string &path)
  82 {
  83         return getTexture(TextureSpec(path, path, NULL));
  84 }
  85
  86 /*
  87         Non-thread-safe functions
  88 */
  89
  90 video::ITexture* IrrlichtWrapper::getTextureDirect(TextureSpec spec)
  91 {
  92         video::IVideoDriver* driver = m_device->getVideoDriver();
  93
  94         if(spec.mod == NULL)
  95         {
  96                 dstream<<"IrrlichtWrapper::getTextureDirect: Loading texture "
  97                                 <<spec.path<<std::endl;
  98                 return driver->getTexture(spec.path.c_str());
  99         }
 100
 101         dstream<<"IrrlichtWrapper::getTextureDirect: Loading and modifying "
 102                         "texture "<<spec.path<<" to make "<<spec.name<<std::endl;
 103
 104         video::ITexture *base = driver->getTexture(spec.path.c_str());
 105         video::ITexture *result = spec.mod->make(base, spec.name.c_str(), driver);
 106
 107         delete spec.mod;
 108
 109         return result;
 110 }
 111
 112 video::ITexture * CrackTextureMod::make(video::ITexture *original,
 113                 const char *newname, video::IVideoDriver* driver)
 114 {
 115         core::dimension2d<u32> dim(16, 16);
 116         core::position2d<s32> pos_base(0, 0);
 117         core::position2d<s32> pos_other(0, 16 * progression);
 118
 119         video::IImage *baseimage = driver->createImage(original, pos_base, dim);
 120         assert(baseimage);
 121
 122         video::ITexture *other = driver->getTexture("../data/crack.png");
 123
 124         // We have to get the whole texture because getting a smaller area
 125         // messes the whole thing. It is probably a bug in Irrlicht.
 126         // NOTE: This doesn't work probably because some systems scale
 127         //       the image to fit a texture or something...
 128         /*video::IImage *otherimage = driver->createImage(
 129                         other, core::position2d<s32>(0,0), other->getSize());*/
 130         // This should work on more systems
 131         video::IImage *otherimage = driver->createImage(
 132                         other, core::position2d<s32>(0,0),
 133                         v2u32(16, CRACK_ANIMATION_LENGTH * 16));
 134
 135         assert(otherimage);
 136
 137         /*core::rect<s32> clip_rect(v2s32(0,0), dim);
 138         otherimage->copyToWithAlpha(baseimage, v2s32(0,0),
 139                         core::rect<s32>(pos_other, dim),
 140                         video::SColor(255,255,255,255),
 141                         &clip_rect);*/
 142
 143         otherimage->copyToWithAlpha(baseimage, v2s32(0,0),
 144                         core::rect<s32>(pos_other, dim),
 145                         video::SColor(255,255,255,255),
 146                         NULL);
 147
 148         otherimage->drop();
 149
 150         video::ITexture *newtexture = driver->addTexture(newname, baseimage);
 151
 152         baseimage->drop();
 153
 154         return newtexture;
 155 }
 156
 157 video::ITexture * ProgressBarTextureMod::make(video::ITexture *original,
 158                 const char *newname, video::IVideoDriver* driver)
 159 {
 160         core::position2d<s32> pos_base(0, 0);
 161         core::dimension2d<u32> dim = original->getOriginalSize();
 162
 163         video::IImage *baseimage = driver->createImage(original, pos_base, dim);
 164         assert(baseimage);
 165
 166         core::dimension2d<u32> size = baseimage->getDimension();
 167
 168         u32 barheight = 1;
 169         u32 barpad_x = 1;
 170         u32 barpad_y = 1;
 171         u32 barwidth = size.Width - barpad_x*2;
 172         v2u32 barpos(barpad_x, size.Height - barheight - barpad_y);
 173
 174         u32 barvalue_i = (u32)(((float)barwidth * value) + 0.5);
 175
 176         video::SColor active(255,255,0,0);
 177         video::SColor inactive(255,0,0,0);
 178         for(u32 x0=0; x0<barwidth; x0++)
 179         {
 180                 video::SColor *c;
 181                 if(x0 < barvalue_i)
 182                         c = &active;
 183                 else
 184                         c = &inactive;
 185                 u32 x = x0 + barpos.X;
 186                 for(u32 y=barpos.Y; y<barpos.Y+barheight; y++)
 187                 {
 188                         baseimage->setPixel(x,y, *c);
 189                 }
 190         }
 191
 192         video::ITexture *newtexture = driver->addTexture(newname, baseimage);
 193
 194         baseimage->drop();
 195
 196         return newtexture;
 197 }
 198