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#include "map/user_mark_dl_cache.hpp"
#include "base/stl_add.hpp"
#include "graphics/display_list.hpp"
#include "graphics/screen.hpp"
namespace
{
struct Deleter
{
void operator()(pair<UserMarkDLCache::Key, graphics::DisplayList *> const & node)
{
delete node.second;
}
};
}
UserMarkDLCache::UserMarkDLCache(graphics::Screen * cacheScreen)
: m_cacheScreen(cacheScreen)
{
}
UserMarkDLCache::~UserMarkDLCache()
{
DeleteRange(m_dls, Deleter());
m_cacheScreen = NULL;
}
graphics::DisplayList * UserMarkDLCache::FindUserMark(UserMarkDLCache::Key const & key)
{
node_t node = m_dls.find(key);
if (node != m_dls.end())
return node->second;
return CreateDL(key);
}
namespace
{
m2::RectD CalcCoords(double const & halfSizeX, double const & halfSizeY, graphics::EPosition anchor)
{
m2::RectD result(-halfSizeX, -halfSizeY, halfSizeX, halfSizeY);
if (anchor & graphics::EPosAbove)
result.Offset(0.0, -halfSizeY);
else if (anchor & graphics::EPosUnder)
result.Offset(0.0, halfSizeY);
if (anchor & graphics::EPosLeft)
result.Offset(halfSizeX, 0.0);
else if (anchor & graphics::EPosRight)
result.Offset(-halfSizeX, 0.0);
return result;
}
}
graphics::DisplayList * UserMarkDLCache::CreateDL(UserMarkDLCache::Key const & key)
{
using namespace graphics;
graphics::DisplayList * dl = m_cacheScreen->createDisplayList();
m_cacheScreen->beginFrame();
m_cacheScreen->setDisplayList(dl);
Icon::Info infoKey(key.m_name);
Resource const * res = m_cacheScreen->fromID(m_cacheScreen->findInfo(infoKey));
shared_ptr<gl::BaseTexture> texture = m_cacheScreen->pipeline(res->m_pipelineID).texture();
m2::RectU texRect = res->m_texRect;
m2::RectD coord = CalcCoords(texRect.SizeX() / 2.0, texRect.SizeY() / 2.0, key.m_anchor);
m2::PointD coords[] =
{
coord.LeftBottom(),
coord.LeftTop(),
coord.RightBottom(),
coord.RightTop()
};
m2::PointF normal(0.0, 0.0);
m2::PointF texCoords[] =
{
texture->mapPixel(m2::PointF(texRect.minX(), texRect.minY())),
texture->mapPixel(m2::PointF(texRect.minX(), texRect.maxY())),
texture->mapPixel(m2::PointF(texRect.maxX(), texRect.minY())),
texture->mapPixel(m2::PointF(texRect.maxX(), texRect.maxY()))
};
m_cacheScreen->addTexturedStripStrided(coords, sizeof(m2::PointD),
&normal, 0,
texCoords, sizeof(m2::PointF),
4, key.m_depthLayer, res->m_pipelineID);
m_cacheScreen->setDisplayList(NULL);
m_cacheScreen->endFrame();
m_dls.insert(make_pair(key, dl));
return dl;
}
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