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cleanup TileRenderer

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This commit is contained in:
Hannes Janetzek 2014-01-31 02:04:02 +01:00
parent 20ddff3d26
commit e0e94f7286
1 changed files with 71 additions and 91 deletions
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162
vtm/src/org/oscim/tiling/TileRenderer.java
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@ -64,6 +64,12 @@ public class TileRenderer extends LayerRenderer {
private int mRenderOverdraw;
private float mRenderAlpha;
// Current number of frames drawn, used to not draw a
// tile twice per frame.
private int mDrawSerial;
private int mClipMode;
private Matrices mMatrices;
/**
* Threadsafe
*/
@ -117,7 +123,69 @@ public class TileRenderer extends LayerRenderer {
BufferObject.checkBufferUsage(false);
}
draw(tiles, tileCnt, pos, m);
mMatrices = m;
mClipMode = 1;
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible && t.state != STATE_READY) {
mClipMode = 2;
break;
}
}
/** draw visible tiles */
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible && t.state == STATE_READY)
drawTile(t, pos);
}
/**
* draw parent or children as proxy for visibile tiles that dont
* have data yet. Proxies are clipped to the region where nothing
* was drawn to depth buffer.
* TODO draw proxies for placeholder
*/
if (mClipMode > 1) {
mClipMode = 3;
//GL.glClear(GL20.GL_DEPTH_BUFFER_BIT);
GL.glDepthFunc(GL20.GL_LESS);
double scale = pos.getZoomScale();
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible
&& (t.state != STATE_READY)
&& (t.holder == null)) {
boolean preferParent = (scale > 1.5)
|| (pos.zoomLevel - t.zoomLevel < 0);
drawProxyTile(t, pos, true, preferParent);
}
}
/** draw grandparents */
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible
&& (t.state != STATE_READY)
&& (t.holder == null))
drawProxyTile(t, pos, false, false);
}
GL.glDepthMask(false);
}
/** make sure stencil buffer write is disabled */
GL.glStencilMask(0x00);
mDrawSerial++;
mMatrices = null;
}
@Override
protected void render(MapPosition position, Matrices matrices) {
// render in update() so that tiles cannot vanish in between.
}
public void clearTiles() {
@ -272,23 +340,15 @@ public class TileRenderer extends LayerRenderer {
tileSet.releaseTiles();
}
// Add additional tiles that serve as placeholer when flipping
// over date-line.
// I dont really like this but cannot think of a better solution:
// The other option would be to run scanbox each time for upload,
// drawing, proxies and text layer. Adding placeholder only
// happens rarely, unless you live on Fidschi
/* package */int mNumTileHolder;
/* package */TileSet mDrawTiles = new TileSet();
// scanline fill class used to check tile visibility
/** scanline fill class used to check tile visibility */
private final ScanBox mScanBox = new ScanBox() {
@Override
protected void setVisible(int y, int x1, int x2) {
int cnt = mDrawTiles.cnt;
MapTile[] tiles = mDrawTiles.tiles;
int cnt = mDrawTiles.cnt;
for (int i = 0; i < cnt; i++) {
MapTile t = tiles[i];
@ -365,82 +425,6 @@ public class TileRenderer extends LayerRenderer {
return maxFade;
}
// Current number of frames drawn, used to not draw a
// tile twice per frame.
private int mDrawSerial = 0;
private Matrices mMatrices;
private int mClipMode = 0;
/**
* Draw tiles:
*
* @param fade
* alpha value for bitmap tiles
* @param overdrawColor
* draw color on top, e.g. to darken the layer temporarily
*/
private void draw(MapTile[] tiles, int tileCnt, MapPosition pos, Matrices m) {
mMatrices = m;
mClipMode = 1;
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible && t.state != STATE_READY) {
mClipMode = 2;
break;
}
}
/** draw visible tiles */
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible && t.state == STATE_READY)
drawTile(t, pos);
}
/**
* draw parent or children as proxy for visibile tiles that dont
* have data yet. Proxies are clipped to the region where nothing
* was drawn to depth buffer.
* TODO draw proxies for placeholder
*/
if (mClipMode > 1) {
mClipMode = 3;
//GL.glClear(GL20.GL_DEPTH_BUFFER_BIT);
GL.glDepthFunc(GL20.GL_LESS);
double scale = pos.getZoomScale();
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible
&& (t.state != STATE_READY)
&& (t.holder == null)) {
boolean preferParent = (scale > 1.5)
|| (pos.zoomLevel - t.zoomLevel < 0);
drawProxyTile(t, pos, true, preferParent);
}
}
/** draw grandparents */
for (int i = 0; i < tileCnt; i++) {
MapTile t = tiles[i];
if (t.isVisible
&& (t.state != STATE_READY)
&& (t.holder == null))
drawProxyTile(t, pos, false, false);
}
GL.glDepthMask(false);
}
/** make sure stencil buffer write is disabled */
GL.glStencilMask(0x00);
mDrawSerial++;
mMatrices = null;
}
private void drawTile(MapTile tile, MapPosition pos) {
/** ensure to draw parents only once */
if (tile.lastDraw == mDrawSerial)
@ -617,8 +601,4 @@ public class TileRenderer extends LayerRenderer {
}
}
}
@Override
protected void render(MapPosition position, Matrices matrices) {
}
}