uint16_t PICadillo35t::colorAt(int16_t x, int16_t y) {
if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height))
return 0;
loadCacheBlock(x, y);
int16_t xo = x & ((1 << PICadillo35t::cacheDimension) - 1);
int16_t yo = y & ((1 << PICadillo35t::cacheDimension) - 1);
uint32_t offset = yo * (1 << PICadillo35t::cacheDimension) + xo;
return _cacheData[offset];
}
inline uint32_t FileLoader::getCacheBlock(uint32_t pos)
{
bool found = false;
uint32_t i, base_pos = pos & ~(m_cache_size - 1);
for(i = 0; i < CACHE_BLOCKS; ++i)
{
if(!m_cached_data[i].loaded || m_cached_data[i].base != base_pos)
continue;
found = true;
break;
}
if(!found)
i = loadCacheBlock(pos);
return i;
}
inline unsigned long FileLoader::getCacheBlock(unsigned long pos)
{
bool found = false;
unsigned long i;
unsigned long base_pos = pos & ~(m_cache_size - 1);
for(i = 0; i < CACHE_BLOCKS; i++){
if(m_cached_data[i].loaded){
if(m_cached_data[i].base == base_pos){
found = true;
break;
}
}
}
if(!found){
i = loadCacheBlock(pos);
}
return i;
}
inline uint32_t FileLoader::getCacheBlock(uint32_t pos)
{
bool found = false;
uint32_t i;
uint32_t base_pos = pos & ~(m_cache_size - 1);
for(i = 0; i < CACHE_BLOCKS; i++)
{
if(m_cached_data[i].loaded)
{
if(m_cached_data[i].base == base_pos)
{
found = true;
break;
}
}
}
if(!found)
i = loadCacheBlock(pos);
return i;
}
