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List: kde-commits
Subject: KDE/kdeedu/marble
From: Torsten Rahn <tackat () kde ! org>
Date: 2008-05-31 23:33:35
Message-ID: 1212276815.128399.22722.nullmailer () svn ! kde ! org
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SVN commit 815026 by rahn:
- Taking cache contents into account when creating fallback
tiles: preparation for threaded loading
M +8 -0 ChangeLog
M +66 -38 src/lib/TextureTile.cpp
M +2 -2 src/lib/TextureTile.h
M +2 -2 src/lib/TileLoader.cpp
--- trunk/KDE/kdeedu/marble/ChangeLog #815025:815026
@@ -1,3 +1,11 @@
+2008-06-01 Torsten Rahn <rahn@kde.org>
+
+ * src/lib/TextureTile.cpp:
+ * src/lib/TileLoader.cpp:
+
+ - Taking cache contents into account when creating fallback
+ tiles: preparation for threaded loading
+
2008-06-01 Inge Wallin <inge@lysator.liu.se>
Fix some issues with the active area in the image.
--- trunk/KDE/kdeedu/marble/src/lib/TextureTile.cpp #815025:815026
@@ -74,23 +74,20 @@
delete [] jumpTable8;
}
-void TextureTile::loadRawTile( GeoSceneTexture *textureLayer, int level, int x, int \
y, QCache<TileId, TextureTile> *cache ) +void TextureTile::loadRawTile( \
GeoSceneTexture *textureLayer, int level, int x, int y, QCache<TileId, TextureTile> \
*tileCache ) {
// qDebug() << "TextureTile::loadRawTile" << level << x << y;
+ QImage temptile;
m_used = true; // Needed to avoid frequent deletion of tiles
- // qDebug() << "Entered loadTile( int, int, int) of Tile" << m_id;
- // m_used = true; // Needed to avoid frequent deletion of tiles
-
QString absfilename;
- // qDebug() << "Requested tile level" << level;
-
// If the tile level offers the requested tile then load it.
// Otherwise cycle from the requested tilelevel down to one where
// the requested area is covered. Then scale the area to create a
// replacement for the tile that has been requested.
+
const int levelZeroColumns = textureLayer->levelZeroColumns();
const int levelZeroRows = textureLayer->levelZeroRows();
const int rowsRequestedLevel = TileLoaderHelper::levelToRow( levelZeroRows, \
level ); @@ -108,53 +105,84 @@
double currentX = normalizedX * (double)( rowsCurrentLevel );
double currentY = normalizedY * (double)( columnsCurrentLevel );
- QString relfilename = TileLoaderHelper::relativeTileFileName( textureLayer,
- currentLevel,
- \
(int)(currentX),
- \
(int)(currentY) );
- absfilename = MarbleDirs::path( relfilename );
- const QFileInfo fileInfo( absfilename );
+ const QDateTime now = QDateTime::currentDateTime();
+ QDateTime lastModified;
- const QDateTime now = QDateTime::currentDateTime();
bool download = false;
+ bool currentTileAvailable = false;
- // - if the file does not exist, we want to download it and search an
- // existing tile of a lower zoom level for imediate display
- // - if the file exists and is expired according to the value of the
- // expire element we want to download it again and display the old
- // tile until the new one is there. Once the updated tile is
- // available, it should get displayed.
+ TextureTile *currentTile = 0;
- if ( !fileInfo.exists() ) {
- qDebug() << "File does not exist:" << fileInfo.filePath();
- download = true;
+ // Check whether the current tile id is available in the CACHE:
+ if ( tileCache ) {
+ TileId currentTileId( currentLevel, (int)(currentX), (int)(currentY) ); \
+ currentTile = tileCache->take( currentTileId );
+
+ if ( currentTile ) {
+ // the tile was in the cache, but is it up to date?
+ lastModified = currentTile->created();
+ if ( lastModified.secsTo( now ) < textureLayer->expire()) {
+ temptile = currentTile->rawtile();
+ qDebug() << "FOUND IN CACHE";
+ currentTileAvailable = true;
+ } else {
+ delete currentTile;
+ currentTile = 0;
+ }
+ }
}
- else if ( fileInfo.lastModified().secsTo( now ) > textureLayer->expire() ) {
- qDebug() << "File does exist, but is expired:" << fileInfo.filePath()
- << "age (seconds):" << fileInfo.lastModified().secsTo( now )
- << "allowed age:" << textureLayer->expire();
- download = true;
- }
+ // If the current tile id is not in the cache or if it was
+ // in the cache but has expired load from DISK:
- if ( fileInfo.exists() ) {
- // qDebug() << "The image filename does exist: " << absfilename ;
+ if ( !currentTile ) {
+ QString relfilename = TileLoaderHelper::relativeTileFileName( \
textureLayer, + \
currentLevel, + \
(int)(currentX), + \
(int)(currentY) ); + absfilename = MarbleDirs::path( relfilename );
+ const QFileInfo fileInfo( absfilename );
+ lastModified = fileInfo.lastModified();
- QImage temptile( absfilename );
- // qDebug() << "TextureTile::loadRawTile "
- // << "depth:" << temptile.depth()
- // << "format:" << temptile.format()
- // << "bytesPerLine:" << temptile.bytesPerLine()
- // << "numBytes:" << temptile.numBytes() ;
+ // - if the file does not exist, we want to download it and search an
+ // existing tile of a lower zoom level for imediate display
+ // - if the file exists and is expired according to the value of the
+ // expire element we want to download it again and display the old
+ // tile until the new one is there. Once the updated tile is
+ // available, it should get displayed.
+
+ if ( !fileInfo.exists() ) {
+ qDebug() << "File does not exist:" << fileInfo.filePath();
+ download = true;
+ }
+ else if ( lastModified.secsTo( now ) > textureLayer->expire() ) {
+ qDebug() << "File does exist, but is expired:" << \
fileInfo.filePath() + << "age (seconds):" << \
lastModified.secsTo( now ) + << "allowed age:" << \
textureLayer->expire(); + download = true;
+ }
+ if ( fileInfo.exists() ) {
+
+ temptile.load( absfilename );
+ // qDebug() << "TextureTile::loadRawTile "
+ // << "depth:" << temptile.depth()
+ // << "format:" << temptile.format()
+ // << "bytesPerLine:" << temptile.bytesPerLine()
+ // << "numBytes:" << temptile.numBytes() ;
+ currentTileAvailable = true;
+ }
+ }
+
+ if ( currentTileAvailable ) {
if ( !temptile.isNull() ) {
- // qDebug() << "Image has been successfully loaded.";
+ // Don't scale if the current tile isn't a fallback
if ( level != currentLevel ) {
scaleTileFrom( textureLayer, temptile, currentX, currentY, \
currentLevel, x, y, level ); }
m_rawtile = temptile;
- m_created = fileInfo.lastModified();
+ m_created = lastModified;
tileFound = true;
}
}
--- trunk/KDE/kdeedu/marble/src/lib/TextureTile.h #815025:815026
@@ -45,7 +45,7 @@
virtual ~TextureTile();
- void loadRawTile( GeoSceneTexture *textureLayer, int level, int x, int y, \
QCache<TileId, TextureTile> *cache = 0 ); + void loadRawTile( GeoSceneTexture \
*textureLayer, int level, int x, int y, QCache<TileId, TextureTile> *tileCache = 0 ); \
TileId const& id() const { return m_id; }
int depth() const { return m_depth; }
@@ -56,7 +56,7 @@
int numBytes() const { return m_rawtile.numBytes(); }
const QImage& rawtile() { return m_rawtile; }
- QImage* tile() { return &m_rawtile; }
+ QImage *tile() { return &m_rawtile; }
const QDateTime & created() const;
// Here we retrieve the color value of the requested pixel on the tile.
--- trunk/KDE/kdeedu/marble/src/lib/TileLoader.cpp #815025:815026
@@ -222,7 +222,7 @@
connect( tile, SIGNAL( tileUpdateDone() ),
this, SIGNAL( tileUpdateAvailable() ) );
- tile->loadRawTile( d->m_textureLayer, tileLevel, tilx, tily );
+ tile->loadRawTile( d->m_textureLayer, tileLevel, tilx, tily, &( d->m_tileCache ) \
); tile->loadTile( false );
// TODO should emit signal rather than directly calling paintTile
@@ -355,7 +355,7 @@
// TODO should emit signal rather than directly calling paintTile
// emit paintTile( d->m_tileHash[id], x, y, level, d->m_theme, true );
- (d->m_tileHash[id])->loadRawTile( d->m_textureLayer, level, x, y );
+ (d->m_tileHash[id])->loadRawTile( d->m_textureLayer, level, x, y, &( \
d->m_tileCache ) );
m_parent->paintTile( d->m_tileHash[id], x, y, level, d->m_textureLayer, true \
); // (d->m_tileHash[id]) -> reloadTile( x, y, level, d->m_theme );
} else {
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