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#include "resource_cache.hpp"
#include "opengl/texture.hpp"
#include "opengl/data_traits.hpp"
#include "resource_manager.hpp"
#include "../base/logging.hpp"
#include "../std/bind.hpp"
#include "../std/numeric.hpp"
namespace graphics
{
typedef gl::Texture<DATA_TRAITS, true> TDynamicTexture;
ResourceCache::ResourceCache()
: m_textureType(EStaticTexture),
m_pipelineID(0)
{}
ResourceCache::ResourceCache(shared_ptr<ResourceManager> const & resourceManager,
string const & name,
uint8_t pipelineID)
: m_texture(resourceManager->getTexture(name)),
m_packer(m_texture->width(), m_texture->height(), 0x00FFFFFF - 1),
m_textureType(EStaticTexture),
m_pipelineID(pipelineID)
{
}
ResourceCache::ResourceCache(shared_ptr<ResourceManager> const & resourceManager,
ETextureType type,
uint8_t pipelineID)
: m_resourceManager(resourceManager),
m_textureType(type),
m_pipelineID(pipelineID)
{
createPacker();
/// clear handles will be called only upon handles overflow,
/// as the texture overflow is processed separately
addHandlesOverflowFn(bind(&ResourceCache::clearHandles, this), 0);
}
void ResourceCache::clearHandles()
{
if (m_textureType != graphics::EStaticTexture)
{
/// clearing only non-static caches.
for (TResourceInfos::const_iterator it = m_infos.begin();
it != m_infos.end();
++it)
m_resources.erase(it->second);
m_infos.clear();
m_packer.reset();
}
}
void ResourceCache::clearUploadQueue()
{
m_uploadQueue.clear();
}
void ResourceCache::clear()
{
if (m_textureType != EStaticTexture)
{
clearHandles();
clearUploadQueue();
}
}
uint32_t ResourceCache::findInfo(Resource::Info const & info) const
{
TResourceInfos::const_iterator it = m_infos.find(&info);
if (it == m_infos.end())
return m_packer.invalidHandle();
else
return it->second;
}
uint32_t ResourceCache::mapInfo(Resource::Info const & info)
{
uint32_t foundHandle = findInfo(info);
if (foundHandle != m_packer.invalidHandle())
return foundHandle;
m2::PointU sz = info.resourceSize();
m2::Packer::handle_t h = m_packer.pack(sz.x, sz.y);
m2::RectU texRect = m_packer.find(h).second;
shared_ptr<Resource> resource(info.createResource(texRect, m_pipelineID));
m_resources[h] = resource;
m_infos[resource->info()] = h;
m_uploadQueue.push_back(resource);
return h;
}
uint32_t ResourceCache::addParentInfo(Resource::Info const & fullInfo)
{
uint32_t id = findInfo(fullInfo.cacheKey());
Resource * r = fromID(id);
shared_ptr<Resource> resource(fullInfo.createResource(r->m_texRect, r->m_pipelineID));
uint32_t newID = m_packer.freeHandle();
m_parentResources[newID] = resource;
m_infos[resource->info()] = newID;
return newID;
}
bool ResourceCache::hasRoom(Resource::Info const & info) const
{
m2::PointU sz = info.resourceSize();
return m_packer.hasRoom(sz.x, sz.y);
}
void ResourceCache::setType(ETextureType textureType)
{
m_textureType = textureType;
createPacker();
if (m_textureType != EStaticTexture)
addHandlesOverflowFn(bind(&ResourceCache::clearHandles, this), 0);
}
ETextureType ResourceCache::type() const
{
return m_textureType;
}
bool ResourceCache::hasData()
{
return !m_uploadQueue.empty();
}
ResourceCache::TUploadQueue const & ResourceCache::uploadQueue() const
{
return m_uploadQueue;
}
void ResourceCache::checkTexture() const
{
if ((m_textureType != EStaticTexture) && (m_texture == 0))
reserveTexture();
}
void ResourceCache::setPipelineID(uint8_t pipelineID)
{
m_pipelineID = pipelineID;
for (TResources::iterator it = m_resources.begin();
it != m_resources.end();
++it)
it->second->m_pipelineID = pipelineID;
}
uint8_t ResourceCache::pipelineID() const
{
return m_pipelineID;
}
Resource * ResourceCache::fromID(uint32_t idx) const
{
TResources::const_iterator it = m_parentResources.find(idx);
it = m_parentResources.find(idx);
if (it != m_parentResources.end())
return it->second.get();
it = m_resources.find(idx);
if (it != m_resources.end())
return it->second.get();
return 0;
}
shared_ptr<gl::BaseTexture> const & ResourceCache::texture() const
{
checkTexture();
return m_texture;
}
bool ResourceCache::hasTexture() const
{
return m_texture != 0;
}
void ResourceCache::setTexture(shared_ptr<gl::BaseTexture> const & texture)
{
m_texture = texture;
m_packer = m2::Packer(texture->width(),
texture->height(),
0x00FFFFFF - 1);
}
void ResourceCache::resetTexture()
{
m_texture.reset();
}
void ResourceCache::reserveTexture() const
{
if (m_textureType != EStaticTexture)
m_texture = m_resourceManager->texturePool(m_textureType)->Reserve();
else
LOG(LINFO, ("reserveTexture call for with invalid type param"));
}
TTexturePool * ResourceCache::texturePool() const
{
if (m_textureType == EStaticTexture)
return 0;
if (m_textureType != EInvalidTexture)
return m_resourceManager->texturePool(m_textureType);
else
{
LOG(LWARNING, ("no texturePool with such type", m_textureType));
return 0;
}
}
void ResourceCache::createPacker()
{
if (m_textureType != EStaticTexture)
m_packer = m2::Packer(m_resourceManager->params().m_textureParams[m_textureType].m_texWidth,
m_resourceManager->params().m_textureParams[m_textureType].m_texHeight,
0x00FFFFFF - 1);
else
LOG(LINFO, ("createPacker call for invalid type param"));
}
shared_ptr<ResourceManager> const & ResourceCache::resourceManager() const
{
return m_resourceManager;
}
void ResourceCache::addHandlesOverflowFn(handlesOverflowFn const & fn, int priority)
{
m_packer.addOverflowFn(fn, priority);
}
}
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