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MeshBucket: use blend/fade color

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This commit is contained in:
Hannes Janetzek 2014-08-27 11:20:21 +02:00
parent e32f45b585
commit b5214ef35a
1 changed files with 50 additions and 9 deletions
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59
vtm/src/org/oscim/renderer/bucket/MeshBucket.java
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@ -16,11 +16,11 @@
*/
package org.oscim.renderer.bucket;
import static org.oscim.backend.GL20.GL_LINES;
import static org.oscim.backend.GL20.GL_SHORT;
import static org.oscim.backend.GL20.GL_TRIANGLES;
import static org.oscim.backend.GL20.GL_UNSIGNED_SHORT;
import org.oscim.backend.GL20;
import org.oscim.backend.canvas.Color;
import org.oscim.core.GeometryBuffer;
import org.oscim.core.MercatorProjection;
@ -140,6 +140,9 @@ public class MeshBucket extends RenderBucket {
float heightOffset = 0;
GL.glUniform1f(s.uHeight, heightOffset);
int zoom = v.pos.zoomLevel;
float scale = (float) v.pos.getZoomScale();
for (; l != null && l.type == MESH; l = l.next) {
MeshBucket ml = (MeshBucket) l;
@ -157,9 +160,9 @@ public class MeshBucket extends RenderBucket {
if (ml.area == null)
GLUtils.setColor(s.uColor, Color.BLUE, 0.4f);
else
GLUtils.setColor(s.uColor, ml.area.color, 1);
else {
setColor(ml.area.current(), s, zoom, scale);
}
GL.glVertexAttribPointer(s.aPos, 2, GL_SHORT,
false, 0, ml.vertexOffset);
@ -172,11 +175,14 @@ public class MeshBucket extends RenderBucket {
if (dbgRender) {
int c = (ml.area == null) ? Color.BLUE : ml.area.color;
c = ColorUtil.shiftHue(c, 0.5);
GLUtils.setColor(s.uColor, c, 0.8f);
GL.glDrawElements(GL_LINES, ml.numIndices,
GL_UNSIGNED_SHORT, 0);
GL.glLineWidth(1);
//c = ColorUtil.shiftHue(c, 0.5);
c = ColorUtil.modHsv(c, 1.1, 1.0, 0.8, true);
GLUtils.setColor(s.uColor, c, 1);
GL.glDrawElements(GL20.GL_LINES,
ml.numIndices,
GL_UNSIGNED_SHORT,
ml.vertexOffset);
}
}
@ -184,5 +190,40 @@ public class MeshBucket extends RenderBucket {
return l;
}
private static final int OPAQUE = 0xff000000;
private static final float FADE_START = 1.3f;
static void setColor(AreaStyle a, Shader s, int zoom, float scale) {
if (a.fadeScale >= zoom) {
float f = 1.0f;
/* fade in/out */
if (a.fadeScale >= zoom) {
if (scale > FADE_START)
f = scale - 1;
else
f = FADE_START - 1;
}
GLState.blend(true);
GLUtils.setColor(s.uColor, a.color, f);
} else if (a.blendScale > 0 && a.blendScale <= zoom) {
/* blend colors (not alpha) */
GLState.blend(false);
if (a.blendScale == zoom)
GLUtils.setColorBlend(s.uColor, a.color,
a.blendColor, scale - 1.0f);
else
GLUtils.setColor(s.uColor, a.blendColor, 1);
} else {
/* test if color contains alpha */
GLState.blend((a.color & OPAQUE) != OPAQUE);
GLUtils.setColor(s.uColor, a.color, 1);
}
}
}
}