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#include "Platform.hpp"
#include "../core/jni_string.hpp"
#include "../../../../../base/logging.hpp"
#include "../../../../../std/algorithm.hpp"
#include "../../../../../std/cmath.hpp"
class Platform::PlatformImpl
{
public:
PlatformImpl(int densityDpi, int screenWidth, int screenHeight)
{ // Constants are taken from android.util.DisplayMetrics
/// ceiling screen sizes to the nearest power of two, and taking half of it as a tile size
double const log2 = log(2.0);
// LOG(LINFO, ("width:", screenWidth, ", height:", screenHeight));
size_t ceiledScreenWidth = static_cast<int>(pow(2.0, ceil(log(double(screenWidth)) / log2)));
size_t ceiledScreenHeight = static_cast<int>(pow(2.0, ceil(log(double(screenHeight)) / log2)));
size_t ceiledScreenSize = max(ceiledScreenWidth, ceiledScreenHeight);
// LOG(LINFO, ("ceiledScreenSize=", ceiledScreenSize));
m_tileSize = min(max(ceiledScreenSize / 2, (size_t)128), (size_t)512);
double k = (256.0 / m_tileSize) * (256.0 / m_tileSize);
LOG(LINFO, ("tileSize=", m_tileSize));
/// calculating how much tiles we need for the screen of such size
m_maxTilesCount = 0;
m_preCachingDepth = 3;
/// calculating for non-rotated screen
for (unsigned i = 0; i < m_preCachingDepth; ++i)
{
// LOG(LINFO, ("calculating", i, "level"));
/// minimum size of tile on the screen
float minTileSize = floor((m_tileSize << i) / 1.05 / 2.0) - 1;
// LOG(LINFO, ("minTileSize:", minTileSize));
int tilesOnXSide = ceil(screenWidth / minTileSize) + 1;
// LOG(LINFO, ("tilesOnXSide:", tilesOnXSide));
int tilesOnYSide = ceil(screenHeight / minTileSize) + 1;
// LOG(LINFO, ("tilesOnYSide:", tilesOnYSide));
/// tiles in the single screen
int singleScreenTilesCount = tilesOnXSide * tilesOnYSide;
// LOG(LINFO, ("singleScreenTilesCount:", singleScreenTilesCount));
int curLevelTilesCount = singleScreenTilesCount * 2;
// LOG(LINFO, ("curLevelTilesCount:", curLevelTilesCount));
m_maxTilesCount += curLevelTilesCount;
// LOG(LINFO, ("on", i, "depth we need", curLevelTilesCount, "tiles"));
}
LOG(LINFO, ("minimum amount of tiles needed is", m_maxTilesCount));
m_maxTilesCount = max(static_cast<int>(120 * k), m_maxTilesCount);
switch (densityDpi)
{
case 120:
m_visualScale = 0.75;
m_skinName = "basic_ldpi.skn";
LOG(LINFO, ("using LDPI resources"));
break;
case 160:
m_visualScale = 1.0;
m_skinName = "basic_mdpi.skn";
LOG(LINFO, ("using MDPI resources"));
break;
case 240:
m_visualScale = 1.5;
m_skinName = "basic_hdpi.skn";
LOG(LINFO, ("using HDPI resources"));
break;
default:
m_visualScale = 2.0;
m_skinName = "basic_xhdpi.skn";
LOG(LINFO, ("using XHDPI resources"));
break;
}
}
double m_visualScale;
string m_skinName;
int m_maxTilesCount;
size_t m_tileSize;
size_t m_preCachingDepth;
};
double Platform::VisualScale() const
{
return m_impl->m_visualScale;
}
string Platform::SkinName() const
{
return m_impl->m_skinName;
}
int Platform::MaxTilesCount() const
{
return m_impl->m_maxTilesCount;
}
int Platform::TileSize() const
{
return m_impl->m_tileSize;
}
int Platform::PreCachingDepth() const
{
return m_impl->m_preCachingDepth;
}
namespace android
{
Platform::~Platform()
{
delete m_impl;
}
void Platform::Initialize(JNIEnv * env,
jint densityDpi,
jint screenWidth,
jint screenHeight,
jstring apkPath,
jstring storagePath,
jstring tmpPath,
jstring extTmpPath,
jstring settingsPath)
{
if (m_impl)
delete m_impl;
m_impl = new PlatformImpl(densityDpi, screenWidth, screenHeight);
m_resourcesDir = jni::ToString(env, apkPath);
m_writableDir = jni::ToString(env, storagePath);
m_settingsDir = jni::ToString(env, settingsPath);
m_localTmpPath = jni::ToString(env, tmpPath);
m_externalTmpPath = jni::ToString(env, extTmpPath);
// By default use external temporary folder
m_tmpDir = m_externalTmpPath;
LOG(LDEBUG, ("Apk path = ", m_resourcesDir));
LOG(LDEBUG, ("Writable path = ", m_writableDir));
LOG(LDEBUG, ("Local tmp path = ", m_localTmpPath));
LOG(LDEBUG, ("External tmp path = ", m_externalTmpPath));
LOG(LDEBUG, ("Settings path = ", m_settingsDir));
}
void Platform::OnExternalStorageStatusChanged(bool isAvailable)
{
if (isAvailable)
m_tmpDir = m_externalTmpPath;
else
m_tmpDir = m_localTmpPath;
}
Platform & Platform::Instance()
{
static Platform platform;
return platform;
}
}
Platform & GetPlatform()
{
return android::Platform::Instance();
}
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