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Reduce heap memory allocation on render path (less heap junk) by

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replacing java.awt.Color with work-alike, lightweight updatable
alternative.
This commit is contained in:
Mike Primm 2011-05-15 22:25:45 -05:00
parent 355d54842f
commit 271990b87c
6 changed files with 109 additions and 57 deletions
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76
src/main/java/org/dynmap/kzedmap/DefaultTileRenderer.java
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@ -1,6 +1,6 @@
package org.dynmap.kzedmap;
import java.awt.Color;
import org.dynmap.Color;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
@ -66,24 +66,28 @@ public class DefaultTileRenderer implements MapTileRenderer {
int x, y;
Color c1 = new Color();
Color c2 = new Color();
int[] rgb = new int[3];
/* draw the map */
for (y = 0; y < KzedMap.tileHeight;) {
jx = ix;
jz = iz;
for (x = KzedMap.tileWidth - 1; x >= 0; x -= 2) {
Color c1 = scan(world, jx, iy, jz, 0, isnether);
Color c2 = scan(world, jx, iy, jz, 2, isnether);
isempty = isempty && c1 == translucent && c2 == translucent;
r.setPixel(x, y, new int[] {
c1.getRed(),
c1.getGreen(),
c1.getBlue() });
r.setPixel(x - 1, y, new int[] {
c2.getRed(),
c2.getGreen(),
c2.getBlue() });
scan(world, jx, iy, jz, 0, isnether, c1);
scan(world, jx, iy, jz, 2, isnether, c2);
if(c1.isTransparent() == false) {
rgb[0] = c1.getRed(); rgb[1] = c1.getGreen(); rgb[2] = c1.getBlue();
r.setPixel(x, y, rgb);
isempty = false;
}
if(c2.isTransparent() == false) {
rgb[0] = c2.getRed(); rgb[1] = c2.getGreen(); rgb[2] = c2.getBlue();
r.setPixel(x - 1, y, rgb);
isempty = false;
}
jx++;
jz++;
@ -95,19 +99,21 @@ public class DefaultTileRenderer implements MapTileRenderer {
jz = iz - 1;
for (x = KzedMap.tileWidth - 1; x >= 0; x -= 2) {
Color c1 = scan(world, jx, iy, jz, 2, isnether);
scan(world, jx, iy, jz, 2, isnether, c1);
jx++;
jz++;
Color c2 = scan(world, jx, iy, jz, 0, isnether);
isempty = isempty && c1 == translucent && c2 == translucent;
r.setPixel(x, y, new int[] {
c1.getRed(),
c1.getGreen(),
c1.getBlue() });
r.setPixel(x - 1, y, new int[] {
c2.getRed(),
c2.getGreen(),
c2.getBlue() });
scan(world, jx, iy, jz, 0, isnether, c2);
if(c1.isTransparent() == false) {
rgb[0] = c1.getRed(); rgb[1] = c1.getGreen(); rgb[2] = c1.getBlue();
r.setPixel(x, y, rgb);
isempty = false;
}
if(c2.isTransparent() == false) {
rgb[0] = c2.getRed(); rgb[1] = c2.getGreen(); rgb[2] = c2.getBlue();
r.setPixel(x - 1, y, rgb);
isempty = false;
}
}
y++;
@ -205,20 +211,20 @@ public class DefaultTileRenderer implements MapTileRenderer {
}
protected Color scan(World world, int x, int y, int z, int seq, boolean isnether) {
Color result = translucent;
protected void scan(World world, int x, int y, int z, int seq, boolean isnether, final Color result) {
result.setTransparent();
for (;;) {
if (y < 0) {
return result;
return;
}
int id = world.getBlockTypeIdAt(x, y, z);
byte data = 0;
if(isnether) { /* Make bedrock ceiling into air in nether */
if(id != 0) {
/* Remember first color we see, in case we wind up solid */
if(result == translucent)
if(result.isTransparent())
if(colorScheme.colors[id] != null)
result = colorScheme.colors[id][seq];
result.setColor(colorScheme.colors[id][seq]);
id = 0;
}
else
@ -246,7 +252,8 @@ public class DefaultTileRenderer implements MapTileRenderer {
if (id != 0) {
if (highlightBlocks.contains(id)) {
return highlightColor;
result.setColor(highlightColor);
return;
}
Color[] colors;
if(data != 0)
@ -259,11 +266,12 @@ public class DefaultTileRenderer implements MapTileRenderer {
/* we found something that isn't transparent! */
if (c.getAlpha() == 255) {
/* it's opaque - the ray ends here */
return c;
result.setColor(c);
return;
}
/* this block is transparent, so recurse */
Color bg = scan(world, x, y, z, seq, isnether);
scan(world, x, y, z, seq, isnether, result);
int cr = c.getRed();
int cg = c.getGreen();
@ -273,8 +281,8 @@ public class DefaultTileRenderer implements MapTileRenderer {
cg *= ca;
cb *= ca;
int na = 255 - ca;
return new Color((bg.getRed() * na + cr) >> 8, (bg.getGreen() * na + cg) >> 8, (bg.getBlue() * na + cb) >> 8);
result.setRGBA((result.getRed() * na + cr) >> 8, (result.getGreen() * na + cg) >> 8, (result.getBlue() * na + cb) >> 8, 255);
return;
}
}
}