diff --git a/vtm/src/org/oscim/renderer/bucket/BitmapBucket.java b/vtm/src/org/oscim/renderer/bucket/BitmapBucket.java
index 4ff5e68a..e093122a 100644
--- a/vtm/src/org/oscim/renderer/bucket/BitmapBucket.java
+++ b/vtm/src/org/oscim/renderer/bucket/BitmapBucket.java
@@ -122,7 +122,7 @@ public class BitmapBucket extends TextureBucket {
buf[pos++] = texMax;
buf[pos++] = texMax;
- this.vertexOffset = vboData.position() * 2;
+ this.vertexOffset = vboData.position() * RenderBuckets.SHORT_BYTES;
vboData.put(buf);
}
diff --git a/vtm/src/org/oscim/renderer/bucket/ExtrusionBucket.java b/vtm/src/org/oscim/renderer/bucket/ExtrusionBucket.java
index 0108df37..00f66864 100644
--- a/vtm/src/org/oscim/renderer/bucket/ExtrusionBucket.java
+++ b/vtm/src/org/oscim/renderer/bucket/ExtrusionBucket.java
@@ -606,7 +606,7 @@ public class ExtrusionBucket extends RenderBucket {
iOffset += idx[i];
}
}
- vertexOffset = vboData.position() * 2;
+ vertexOffset = vboData.position() * RenderBuckets.SHORT_BYTES;
vertexItems.compile(vboData);
clear();
diff --git a/vtm/src/org/oscim/renderer/bucket/LineBucket.java b/vtm/src/org/oscim/renderer/bucket/LineBucket.java
index 6b46011c..a276dc96 100644
--- a/vtm/src/org/oscim/renderer/bucket/LineBucket.java
+++ b/vtm/src/org/oscim/renderer/bucket/LineBucket.java
@@ -35,8 +35,8 @@ import static org.oscim.renderer.MapRenderer.COORD_SCALE;
/**
* Note:
- * Coordinates must be in range +/- (Short.MAX_VALUE / COORD_SCALE) and the maximum
- * resolution for coordinates is 0.25 as points will be converted
+ * Coordinates must be in range +/- (Short.MAX_VALUE / COORD_SCALE) if using GL.SHORT.
+ * The maximum resolution for coordinates is 0.25 as points will be converted
* to fixed point values.
*/
public class LineBucket extends RenderBucket {
@@ -360,7 +360,7 @@ public class LineBucket extends RenderBucket {
vNextX = nextX - curX;
vNextY = nextY - curY;
a = Math.sqrt(vNextX * vNextX + vNextY * vNextY);
- /* skip too short segmets */
+ /* skip two vertex segments */
if (a < mMinDist) {
numVertices -= 2;
continue;
diff --git a/vtm/src/org/oscim/renderer/bucket/LineTexBucket.java b/vtm/src/org/oscim/renderer/bucket/LineTexBucket.java
index c2b2fcf5..b7bd665e 100644
--- a/vtm/src/org/oscim/renderer/bucket/LineTexBucket.java
+++ b/vtm/src/org/oscim/renderer/bucket/LineTexBucket.java
@@ -68,11 +68,11 @@ import static org.oscim.renderer.MapRenderer.bindQuadIndicesVBO;
* flip 0 1 0 1 0 1 0 1
*
*
- * Vertex layout:
- * [2 short] position,
- * [2 short] extrusion,
- * [1 short] line length
- * [1 short] unused
+ * Vertex layout (here: 1 unit == 1 short):
+ * [2 unit] position,
+ * [2 unit] extrusion,
+ * [1 unit] line length
+ * [1 unit] unused
*
* indices, for two blocks:
* 0, 1, 2,
@@ -341,8 +341,11 @@ public final class LineTexBucket extends LineBucket {
GL.REPEAT, GL.REPEAT);
}
- private final static int STRIDE = 12;
- private final static int LEN_OFFSET = 8;
+ /* posX, posY, extrX, extrY, length, unused */
+ private final static int STRIDE = 6 * RenderBuckets.SHORT_BYTES;
+
+ /* offset for line length, unused; skip first 4 units */
+ private final static int LEN_OFFSET = 4 * RenderBuckets.SHORT_BYTES;
public static RenderBucket draw(RenderBucket b, GLViewport v,
float div, RenderBuckets buckets) {
@@ -420,8 +423,8 @@ public final class LineTexBucket extends LineBucket {
if (numIndices > MAX_INDICES)
numIndices = MAX_INDICES;
- /* i / 6 * (24 shorts per block * 2 short bytes) */
- int add = (b.vertexOffset + i * 8) + vOffset;
+ /* i * (24 units per block / 6) * unit bytes) */
+ int add = (b.vertexOffset + i * 4 * RenderBuckets.SHORT_BYTES) + vOffset;
gl.vertexAttribPointer(aPos0, 4, GL.SHORT, false, STRIDE,
add + STRIDE);
@@ -445,8 +448,8 @@ public final class LineTexBucket extends LineBucket {
int numIndices = allIndices - i;
if (numIndices > MAX_INDICES)
numIndices = MAX_INDICES;
- /* i / 6 * (24 shorts per block * 2 short bytes) */
- int add = (b.vertexOffset + i * 8) + vOffset;
+ /* i * (24 units per block / 6) * unit bytes) */
+ int add = (b.vertexOffset + i * 4 * RenderBuckets.SHORT_BYTES) + vOffset;
gl.vertexAttribPointer(aPos0, 4, GL.SHORT, false, STRIDE,
add + 2 * STRIDE);
diff --git a/vtm/src/org/oscim/renderer/bucket/RenderBucket.java b/vtm/src/org/oscim/renderer/bucket/RenderBucket.java
index 65b34fdc..3ed28332 100644
--- a/vtm/src/org/oscim/renderer/bucket/RenderBucket.java
+++ b/vtm/src/org/oscim/renderer/bucket/RenderBucket.java
@@ -96,7 +96,7 @@ public abstract class RenderBucket extends Inlist {
}
/**
- * Start position in ibo for this bucket
+ * Start position in ibo for this bucket (in bytes)
*/
public int getIndiceOffset() {
return indiceOffset;
@@ -110,9 +110,9 @@ public abstract class RenderBucket extends Inlist {
this.vertexOffset = offset;
}
- protected int vertexOffset;
+ protected int vertexOffset; // in bytes
- protected int indiceOffset;
+ protected int indiceOffset; // in bytes
protected void compile(ShortBuffer vboData, ShortBuffer iboData) {
compileVertexItems(vboData);
@@ -122,16 +122,16 @@ public abstract class RenderBucket extends Inlist {
protected void compileVertexItems(ShortBuffer vboData) {
/* keep offset of layer data in vbo */
- vertexOffset = vboData.position() * 2; // FIXME 2? - should be vertex stride / num shorts
+ vertexOffset = vboData.position() * RenderBuckets.SHORT_BYTES;
vertexItems.compile(vboData);
}
protected void compileIndicesItems(ShortBuffer iboData) {
- /* keep offset of layer data in vbo */
+ /* keep offset of layer data in ibo */
if (indiceItems == null || indiceItems.empty())
return;
- indiceOffset = iboData.position() * 2; // needs byte offset...
+ indiceOffset = iboData.position() * RenderBuckets.SHORT_BYTES;
indiceItems.compile(iboData);
}
}
diff --git a/vtm/src/org/oscim/renderer/bucket/RenderBuckets.java b/vtm/src/org/oscim/renderer/bucket/RenderBuckets.java
index f123caef..dfeaa0b2 100644
--- a/vtm/src/org/oscim/renderer/bucket/RenderBuckets.java
+++ b/vtm/src/org/oscim/renderer/bucket/RenderBuckets.java
@@ -46,7 +46,8 @@ public class RenderBuckets extends TileData {
static final Logger log = LoggerFactory.getLogger(RenderBuckets.class);
- public final static int[] VERTEX_SHORT_CNT = {
+ /* Count of units needed for one vertex */
+ public final static int[] VERTEX_CNT = {
4, // LINE_VERTEX
6, // TEXLINE_VERTEX
2, // POLY_VERTEX
@@ -58,7 +59,8 @@ public class RenderBuckets extends TileData {
2, // CIRCLE
};
- private final static int SHORT_BYTES = 2;
+ public final static int SHORT_BYTES = 2;
+ // public final static int INT_BYTES = 4;
private RenderBucket buckets;
@@ -277,12 +279,12 @@ public class RenderBuckets extends TileData {
}
private int countVboSize() {
- int vboShorts = 0;
+ int vboSize = 0;
for (RenderBucket l = buckets; l != null; l = l.next)
- vboShorts += l.numVertices * VERTEX_SHORT_CNT[l.type];
+ vboSize += l.numVertices * VERTEX_CNT[l.type];
- return vboShorts;
+ return vboSize;
}
private int countIboSize() {
@@ -363,7 +365,7 @@ public class RenderBuckets extends TileData {
ShortBuffer vboData = MapRenderer.getShortBuffer(vboSize);
if (addFill)
- vboData.put(fillCoords, 0, 8);
+ vboData.put(fillShortCoords, 0, 8);
ShortBuffer iboData = null;
@@ -420,23 +422,25 @@ public class RenderBuckets extends TileData {
if (vbo == null)
vbo = BufferObject.get(GL.ARRAY_BUFFER, vboSize);
- vbo.loadBufferData(vboData.flip(), vboSize * 2);
+ // Set VBO data to READ mode
+ vbo.loadBufferData(vboData.flip(), vboSize * SHORT_BYTES);
if (iboSize > 0) {
if (ibo == null)
ibo = BufferObject.get(GL.ELEMENT_ARRAY_BUFFER, iboSize);
- ibo.loadBufferData(iboData.flip(), iboSize * 2);
+ // Set IBO data to READ mode
+ ibo.loadBufferData(iboData.flip(), iboSize * SHORT_BYTES);
}
return true;
}
- private static short[] fillCoords;
+ private static short[] fillShortCoords;
static {
short s = (short) (Tile.SIZE * COORD_SCALE);
- fillCoords = new short[]{0, s, s, s, 0, 0, s, 0};
+ fillShortCoords = new short[]{0, s, s, s, 0, 0, s, 0};
}
public static void initRenderer() {
diff --git a/vtm/src/org/oscim/renderer/bucket/SymbolBucket.java b/vtm/src/org/oscim/renderer/bucket/SymbolBucket.java
index 2e16be64..01c94db1 100755
--- a/vtm/src/org/oscim/renderer/bucket/SymbolBucket.java
+++ b/vtm/src/org/oscim/renderer/bucket/SymbolBucket.java
@@ -74,7 +74,7 @@ public final class SymbolBucket extends TextureBucket {
@Override
protected void compile(ShortBuffer vboData, ShortBuffer iboData) {
/* offset of layer data in vbo */
- this.vertexOffset = vboData.position() * 2; //SHORT_BYTES;
+ this.vertexOffset = vboData.position() * RenderBuckets.SHORT_BYTES;
int numIndices = 0;