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[libgdx] Handle whitespace stripping for mesh texture regions.

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This commit is contained in:
NathanSweet 2018-12-19 14:39:46 +01:00
parent 9d77b4bf12
commit 63238bfc69
1 changed files with 24 additions and 14 deletions
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38
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/attachments/MeshAttachment.java
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@ -33,6 +33,7 @@ package com.esotericsoftware.spine.attachments;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.TextureAtlas.AtlasRegion;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.esotericsoftware.spine.Animation.DeformTimeline;
/** An attachment that displays a textured mesh. A mesh has hull vertices and internal vertices within the hull. Holes are not
@ -70,8 +71,27 @@ public class MeshAttachment extends VertexAttachment {
/** Calculates {@link #uvs} using {@link #regionUVs} and the {@link #region}. Must be called after changing the region UVs or
* region. */
public void updateUVs () {
float[] regionUVs = this.regionUVs;
if (this.uvs == null || this.uvs.length != regionUVs.length) this.uvs = new float[regionUVs.length];
float[] uvs = this.uvs;
float u, v, width, height;
if (region == null) {
if (region instanceof AtlasRegion) {
AtlasRegion region = (AtlasRegion)this.region;
float textureWidth = region.getTexture().getWidth(), textureHeight = region.getTexture().getHeight();
width = region.originalWidth / textureWidth;
height = region.originalHeight / textureHeight;
if (region.rotate) {
u = region.getU() - (region.originalHeight - region.offsetY - region.packedWidth) / textureWidth;
v = region.getV() - (region.originalWidth - region.offsetX - region.packedHeight) / textureHeight;
for (int i = 0, n = uvs.length; i < n; i += 2) {
uvs[i] = u + regionUVs[i + 1] * height;
uvs[i + 1] = v + width - regionUVs[i] * width;
}
return;
}
u = region.getU() - region.offsetX / textureWidth;
v = region.getV() - (region.originalHeight - region.offsetY - region.packedHeight) / textureHeight;
} else if (region == null) {
u = v = 0;
width = height = 1;
} else {
@ -80,19 +100,9 @@ public class MeshAttachment extends VertexAttachment {
width = region.getU2() - u;
height = region.getV2() - v;
}
float[] regionUVs = this.regionUVs;
if (this.uvs == null || this.uvs.length != regionUVs.length) this.uvs = new float[regionUVs.length];
float[] uvs = this.uvs;
if (region instanceof AtlasRegion && ((AtlasRegion)region).rotate) {
for (int i = 0, n = uvs.length; i < n; i += 2) {
uvs[i] = u + regionUVs[i + 1] * width;
uvs[i + 1] = v + height - regionUVs[i] * height;
}
} else {
for (int i = 0, n = uvs.length; i < n; i += 2) {
uvs[i] = u + regionUVs[i] * width;
uvs[i + 1] = v + regionUVs[i + 1] * height;
}
for (int i = 0, n = uvs.length; i < n; i += 2) {
uvs[i] = u + regionUVs[i] * width;
uvs[i + 1] = v + regionUVs[i + 1] * height;
}
}