u32 TextureSource::getTextureId(const std::string &name)
{
//infostream<<"getTextureId(): \""<<name<<"\""<<std::endl;
{
/*
See if texture already exists
*/
JMutexAutoLock lock(m_textureinfo_cache_mutex);
std::map<std::string, u32>::iterator n;
n = m_name_to_id.find(name);
if(n != m_name_to_id.end())
{
return n->second;
}
}
/*
Get texture
*/
if(get_current_thread_id() == m_main_thread)
{
return getTextureIdDirect(name);
}
else
{
infostream<<"getTextureId(): Queued: name=\""<<name<<"\""<<std::endl;
// We're gonna ask the result to be put into here
static ResultQueue<std::string, u32, u8, u8> result_queue;
// Throw a request in
m_get_texture_queue.add(name, 0, 0, &result_queue);
/*infostream<<"Waiting for texture from main thread, name=\""
<<name<<"\""<<std::endl;*/
try
{
while(true) {
// Wait result for a second
GetResult<std::string, u32, u8, u8>
result = result_queue.pop_front(1000);
if (result.key == name) {
return result.item;
}
}
}
catch(ItemNotFoundException &e)
{
errorstream<<"Waiting for texture " << name << " timed out."<<std::endl;
return 0;
}
}
infostream<<"getTextureId(): Failed"<<std::endl;
return 0;
}
u32 TextureSource::getTextureId(const std::string &name)
{
//infostream<<"getTextureId(): \""<<name<<"\""<<std::endl;
{
/*
See if texture already exists
*/
JMutexAutoLock lock(m_atlaspointer_cache_mutex);
core::map<std::string, u32>::Node *n;
n = m_name_to_id.find(name);
if(n != NULL)
{
return n->getValue();
}
}
/*
Get texture
*/
if(get_current_thread_id() == m_main_thread)
{
return getTextureIdDirect(name);
}
else
{
infostream<<"getTextureId(): Queued: name=\""<<name<<"\""<<std::endl;
// We're gonna ask the result to be put into here
ResultQueue<std::string, u32, u8, u8> result_queue;
// Throw a request in
m_get_texture_queue.add(name, 0, 0, &result_queue);
infostream<<"Waiting for texture from main thread, name=\""
<<name<<"\""<<std::endl;
try
{
// Wait result for a second
GetResult<std::string, u32, u8, u8>
result = result_queue.pop_front(1000);
// Check that at least something worked OK
assert(result.key == name);
return result.item;
}
catch(ItemNotFoundException &e)
{
infostream<<"Waiting for texture timed out."<<std::endl;
return 0;
}
}
infostream<<"getTextureId(): Failed"<<std::endl;
return 0;
}
void TextureSource::processQueue()
{
/*
Fetch textures
*/
if(!m_get_texture_queue.empty())
{
GetRequest<std::string, u32, u8, u8>
request = m_get_texture_queue.pop();
/*infostream<<"TextureSource::processQueue(): "
<<"got texture request with "
<<"name=\""<<request.key<<"\""
<<std::endl;*/
m_get_texture_queue.pushResult(request,getTextureIdDirect(request.key));
}
}
void TextureSource::processQueue()
{
/*
Fetch textures
*/
if(m_get_texture_queue.size() > 0)
{
GetRequest<std::string, u32, u8, u8>
request = m_get_texture_queue.pop();
/*infostream<<"TextureSource::processQueue(): "
<<"got texture request with "
<<"name=\""<<request.key<<"\""
<<std::endl;*/
GetResult<std::string, u32, u8, u8>
result;
result.key = request.key;
result.callers = request.callers;
result.item = getTextureIdDirect(request.key);
request.dest->push_back(result);
}
}
/*
This method generates all the textures
*/
u32 TextureSource::getTextureIdDirect(const std::string &name)
{
//infostream<<"getTextureIdDirect(): name=\""<<name<<"\""<<std::endl;
// Empty name means texture 0
if(name == "")
{
infostream<<"getTextureIdDirect(): name is empty"<<std::endl;
return 0;
}
/*
Calling only allowed from main thread
*/
if(get_current_thread_id() != m_main_thread)
{
errorstream<<"TextureSource::getTextureIdDirect() "
"called not from main thread"<<std::endl;
return 0;
}
/*
See if texture already exists
*/
{
JMutexAutoLock lock(m_textureinfo_cache_mutex);
std::map<std::string, u32>::iterator n;
n = m_name_to_id.find(name);
if(n != m_name_to_id.end())
{
/*infostream<<"getTextureIdDirect(): \""<<name
<<"\" found in cache"<<std::endl;*/
return n->second;
}
}
/*infostream<<"getTextureIdDirect(): \""<<name
<<"\" NOT found in cache. Creating it."<<std::endl;*/
/*
Get the base image
*/
char separator = '^';
/*
This is set to the id of the base image.
If left 0, there is no base image and a completely new image
is made.
*/
u32 base_image_id = 0;
// Find last meta separator in name
s32 last_separator_position = -1;
for(s32 i=name.size()-1; i>=0; i--)
{
if(name[i] == separator)
{
last_separator_position = i;
break;
}
}
/*
If separator was found, construct the base name and make the
base image using a recursive call
*/
std::string base_image_name;
if(last_separator_position != -1)
{
// Construct base name
base_image_name = name.substr(0, last_separator_position);
/*infostream<<"getTextureIdDirect(): Calling itself recursively"
" to get base image of \""<<name<<"\" = \""
<<base_image_name<<"\""<<std::endl;*/
base_image_id = getTextureIdDirect(base_image_name);
}
//infostream<<"base_image_id="<<base_image_id<<std::endl;
video::IVideoDriver* driver = m_device->getVideoDriver();
assert(driver);
video::ITexture *t = NULL;
/*
An image will be built from files and then converted into a texture.
*/
video::IImage *baseimg = NULL;
// If a base image was found, copy it to baseimg
if(base_image_id != 0)
{
JMutexAutoLock lock(m_textureinfo_cache_mutex);
TextureInfo *ti = &m_textureinfo_cache[base_image_id];
if(ti->img == NULL)
{
infostream<<"getTextureIdDirect(): WARNING: NULL image in "
<<"cache: \""<<base_image_name<<"\""
<<std::endl;
}
else
{
core::dimension2d<u32> dim = ti->img->getDimension();
baseimg = driver->createImage(video::ECF_A8R8G8B8, dim);
ti->img->copyTo(
baseimg, // target
v2s32(0,0), // position in target
core::rect<s32>(v2s32(0,0), dim) // from
);
/*infostream<<"getTextureIdDirect(): Loaded \""
<<base_image_name<<"\" from image cache"
<<std::endl;*/
}
}
/*
Parse out the last part of the name of the image and act
according to it
*/
std::string last_part_of_name = name.substr(last_separator_position+1);
//infostream<<"last_part_of_name=\""<<last_part_of_name<<"\""<<std::endl;
// Generate image according to part of name
if(!generateImage(last_part_of_name, baseimg))
{
errorstream<<"getTextureIdDirect(): "
"failed to generate \""<<last_part_of_name<<"\""
<<std::endl;
}
// If no resulting image, print a warning
if(baseimg == NULL)
{
errorstream<<"getTextureIdDirect(): baseimg is NULL (attempted to"
" create texture \""<<name<<"\""<<std::endl;
}
if(baseimg != NULL)
{
// Create texture from resulting image
t = driver->addTexture(name.c_str(), baseimg);
}
/*
Add texture to caches (add NULL textures too)
*/
JMutexAutoLock lock(m_textureinfo_cache_mutex);
u32 id = m_textureinfo_cache.size();
TextureInfo ti(name, t, baseimg);
m_textureinfo_cache.push_back(ti);
m_name_to_id[name] = id;
/*infostream<<"getTextureIdDirect(): "
<<"Returning id="<<id<<" for name \""<<name<<"\""<<std::endl;*/
return id;
}