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com.esotericsoftware.spine.SkeletonRenderer Maven / Gradle / Ivy
/******************************************************************************
* Spine Runtimes Software License v2.5
*
* Copyright (c) 2013-2016, Esoteric Software
* All rights reserved.
*
* You are granted a perpetual, non-exclusive, non-sublicensable, and
* non-transferable license to use, install, execute, and perform the Spine
* Runtimes software and derivative works solely for personal or internal
* use. Without the written permission of Esoteric Software (see Section 2 of
* the Spine Software License Agreement), you may not (a) modify, translate,
* adapt, or develop new applications using the Spine Runtimes or otherwise
* create derivative works or improvements of the Spine Runtimes or (b) remove,
* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
* or other intellectual property or proprietary rights notices on or in the
* Software, including any copy thereof. Redistributions in binary or source
* form must include this license and terms.
*
* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
* USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
package com.esotericsoftware.spine;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.PolygonSpriteBatch;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.FloatArray;
import com.badlogic.gdx.utils.NumberUtils;
import com.badlogic.gdx.utils.ShortArray;
import com.esotericsoftware.spine.attachments.Attachment;
import com.esotericsoftware.spine.attachments.ClippingAttachment;
import com.esotericsoftware.spine.attachments.MeshAttachment;
import com.esotericsoftware.spine.attachments.RegionAttachment;
import com.esotericsoftware.spine.attachments.SkeletonAttachment;
import com.esotericsoftware.spine.utils.SkeletonClipping;
import com.esotericsoftware.spine.utils.TwoColorPolygonBatch;
public class SkeletonRenderer {
static private final short[] quadTriangles = {0, 1, 2, 2, 3, 0};
private boolean premultipliedAlpha;
private final FloatArray vertices = new FloatArray(32);
private final SkeletonClipping clipper = new SkeletonClipping();
private VertexEffect vertexEffect;
private final Vector2 temp = new Vector2();
private final Vector2 temp2 = new Vector2();
private final Color temp3 = new Color();
private final Color temp4 = new Color();
private final Color temp5 = new Color();
private final Color temp6 = new Color();
public void draw (Batch batch, Skeleton skeleton) {
VertexEffect vertexEffect = this.vertexEffect;
if (vertexEffect != null) vertexEffect.begin(skeleton);
boolean premultipliedAlpha = this.premultipliedAlpha;
BlendMode blendMode = null;
float[] vertices = this.vertices.items;
Color skeletonColor = skeleton.color;
float r = skeletonColor.r, g = skeletonColor.g, b = skeletonColor.b, a = skeletonColor.a;
Array drawOrder = skeleton.drawOrder;
for (int i = 0, n = drawOrder.size; i < n; i++) {
Slot slot = drawOrder.get(i);
Attachment attachment = slot.attachment;
if (attachment instanceof RegionAttachment) {
RegionAttachment region = (RegionAttachment)attachment;
region.computeWorldVertices(slot.getBone(), vertices, 0, 5);
Color color = region.getColor(), slotColor = slot.getColor();
float alpha = a * slotColor.a * color.a * 255;
float multiplier = premultipliedAlpha ? alpha : 255;
BlendMode slotBlendMode = slot.data.getBlendMode();
if (slotBlendMode != blendMode) {
if (slotBlendMode == BlendMode.additive && premultipliedAlpha) {
slotBlendMode = BlendMode.normal;
alpha = 0;
}
blendMode = slotBlendMode;
batch.setBlendFunction(blendMode.getSource(premultipliedAlpha), blendMode.getDest());
}
float c = NumberUtils.intToFloatColor(((int)alpha << 24) //
| ((int)(b * slotColor.b * color.b * multiplier) << 16) //
| ((int)(g * slotColor.g * color.g * multiplier) << 8) //
| (int)(r * slotColor.r * color.r * multiplier));
float[] uvs = region.getUVs();
for (int u = 0, v = 2; u < 8; u += 2, v += 5) {
vertices[v] = c;
vertices[v + 1] = uvs[u];
vertices[v + 2] = uvs[u + 1];
}
if (vertexEffect != null) applyVertexEffect(vertices, 20, 5, c, 0);
batch.draw(region.getRegion().getTexture(), vertices, 0, 20);
} else if (attachment instanceof ClippingAttachment) {
clipper.clipStart(slot, (ClippingAttachment)attachment);
continue;
} else if (attachment instanceof MeshAttachment) {
throw new RuntimeException(batch.getClass().getSimpleName()
+ " cannot render meshes, PolygonSpriteBatch or TwoColorPolygonBatch is required.");
} else if (attachment instanceof SkeletonAttachment) {
Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
if (attachmentSkeleton != null) draw(batch, attachmentSkeleton);
}
clipper.clipEnd(slot);
}
clipper.clipEnd();
if (vertexEffect != null) vertexEffect.end();
}
@SuppressWarnings("null")
public void draw (PolygonSpriteBatch batch, Skeleton skeleton) {
Vector2 tempPos = this.temp;
Vector2 tempUv = this.temp2;
Color tempLight = this.temp3;
Color tempDark = this.temp4;
Color temp5 = this.temp5;
Color temp6 = this.temp6;
VertexEffect vertexEffect = this.vertexEffect;
if (vertexEffect != null) vertexEffect.begin(skeleton);
boolean premultipliedAlpha = this.premultipliedAlpha;
BlendMode blendMode = null;
int verticesLength = 0;
float[] vertices = null, uvs = null;
short[] triangles = null;
Color color = null, skeletonColor = skeleton.color;
float r = skeletonColor.r, g = skeletonColor.g, b = skeletonColor.b, a = skeletonColor.a;
Array drawOrder = skeleton.drawOrder;
for (int i = 0, n = drawOrder.size; i < n; i++) {
Slot slot = drawOrder.get(i);
Texture texture = null;
int vertexSize = clipper.isClipping() ? 2 : 5;
Attachment attachment = slot.attachment;
if (attachment instanceof RegionAttachment) {
RegionAttachment region = (RegionAttachment)attachment;
verticesLength = vertexSize << 2;
vertices = this.vertices.items;
region.computeWorldVertices(slot.getBone(), vertices, 0, vertexSize);
triangles = quadTriangles;
texture = region.getRegion().getTexture();
uvs = region.getUVs();
color = region.getColor();
} else if (attachment instanceof MeshAttachment) {
MeshAttachment mesh = (MeshAttachment)attachment;
int count = mesh.getWorldVerticesLength();
verticesLength = (count >> 1) * vertexSize;
vertices = this.vertices.setSize(verticesLength);
mesh.computeWorldVertices(slot, 0, count, vertices, 0, vertexSize);
triangles = mesh.getTriangles();
texture = mesh.getRegion().getTexture();
uvs = mesh.getUVs();
color = mesh.getColor();
} else if (attachment instanceof ClippingAttachment) {
ClippingAttachment clip = (ClippingAttachment)attachment;
clipper.clipStart(slot, clip);
continue;
} else if (attachment instanceof SkeletonAttachment) {
Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
if (attachmentSkeleton != null) draw(batch, attachmentSkeleton);
}
if (texture != null) {
Color slotColor = slot.getColor();
float alpha = a * slotColor.a * color.a * 255;
float multiplier = premultipliedAlpha ? alpha : 255;
BlendMode slotBlendMode = slot.data.getBlendMode();
if (slotBlendMode != blendMode) {
if (slotBlendMode == BlendMode.additive && premultipliedAlpha) {
slotBlendMode = BlendMode.normal;
alpha = 0;
}
blendMode = slotBlendMode;
batch.setBlendFunction(blendMode.getSource(premultipliedAlpha), blendMode.getDest());
}
float c = NumberUtils.intToFloatColor(((int)alpha << 24) //
| ((int)(b * slotColor.b * color.b * multiplier) << 16) //
| ((int)(g * slotColor.g * color.g * multiplier) << 8) //
| (int)(r * slotColor.r * color.r * multiplier));
if (clipper.isClipping()) {
clipper.clipTriangles(vertices, verticesLength, triangles, triangles.length, uvs, c, 0, false);
FloatArray clippedVertices = clipper.getClippedVertices();
ShortArray clippedTriangles = clipper.getClippedTriangles();
if (vertexEffect != null) applyVertexEffect(clippedVertices.items, clippedVertices.size, 5, c, 0);
batch.draw(texture, clippedVertices.items, 0, clippedVertices.size, clippedTriangles.items, 0,
clippedTriangles.size);
} else {
if (vertexEffect != null) {
temp5.set(NumberUtils.floatToIntColor(c));
temp6.set(0);
for (int v = 0, u = 0; v < verticesLength; v += 5, u += 2) {
tempPos.x = vertices[v];
tempPos.y = vertices[v + 1];
tempLight.set(temp5);
tempDark.set(temp6);
tempUv.x = uvs[u];
tempUv.y = uvs[u + 1];
vertexEffect.transform(tempPos, tempUv, tempLight, tempDark);
vertices[v] = tempPos.x;
vertices[v + 1] = tempPos.y;
vertices[v + 2] = tempLight.toFloatBits();
vertices[v + 3] = tempUv.x;
vertices[v + 4] = tempUv.y;
}
} else {
for (int v = 2, u = 0; v < verticesLength; v += 5, u += 2) {
vertices[v] = c;
vertices[v + 1] = uvs[u];
vertices[v + 2] = uvs[u + 1];
}
}
batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
}
}
clipper.clipEnd(slot);
}
clipper.clipEnd();
if (vertexEffect != null) vertexEffect.end();
}
@SuppressWarnings("null")
public void draw (TwoColorPolygonBatch batch, Skeleton skeleton) {
Vector2 tempPos = this.temp;
Vector2 tempUv = this.temp2;
Color tempLight = this.temp3;
Color tempDark = this.temp4;
Color temp5 = this.temp5;
Color temp6 = this.temp6;
VertexEffect vertexEffect = this.vertexEffect;
if (vertexEffect != null) vertexEffect.begin(skeleton);
boolean premultipliedAlpha = this.premultipliedAlpha;
batch.setPremultipliedAlpha(premultipliedAlpha);
BlendMode blendMode = null;
int verticesLength = 0;
float[] vertices = null, uvs = null;
short[] triangles = null;
Color color = null, skeletonColor = skeleton.color;
float r = skeletonColor.r, g = skeletonColor.g, b = skeletonColor.b, a = skeletonColor.a;
Array drawOrder = skeleton.drawOrder;
for (int i = 0, n = drawOrder.size; i < n; i++) {
Slot slot = drawOrder.get(i);
Texture texture = null;
int vertexSize = clipper.isClipping() ? 2 : 6;
Attachment attachment = slot.attachment;
if (attachment instanceof RegionAttachment) {
RegionAttachment region = (RegionAttachment)attachment;
verticesLength = vertexSize << 2;
vertices = this.vertices.items;
region.computeWorldVertices(slot.getBone(), vertices, 0, vertexSize);
triangles = quadTriangles;
texture = region.getRegion().getTexture();
uvs = region.getUVs();
color = region.getColor();
} else if (attachment instanceof MeshAttachment) {
MeshAttachment mesh = (MeshAttachment)attachment;
int count = mesh.getWorldVerticesLength();
verticesLength = (count >> 1) * vertexSize;
vertices = this.vertices.setSize(verticesLength);
mesh.computeWorldVertices(slot, 0, count, vertices, 0, vertexSize);
triangles = mesh.getTriangles();
texture = mesh.getRegion().getTexture();
uvs = mesh.getUVs();
color = mesh.getColor();
} else if (attachment instanceof ClippingAttachment) {
ClippingAttachment clip = (ClippingAttachment)attachment;
clipper.clipStart(slot, clip);
continue;
} else if (attachment instanceof SkeletonAttachment) {
Skeleton attachmentSkeleton = ((SkeletonAttachment)attachment).getSkeleton();
if (attachmentSkeleton != null) draw(batch, attachmentSkeleton);
}
if (texture != null) {
Color lightColor = slot.getColor();
float alpha = a * lightColor.a * color.a * 255;
float multiplier = premultipliedAlpha ? alpha : 255;
BlendMode slotBlendMode = slot.data.getBlendMode();
if (slotBlendMode != blendMode) {
if (slotBlendMode == BlendMode.additive && premultipliedAlpha) {
slotBlendMode = BlendMode.normal;
alpha = 0;
}
blendMode = slotBlendMode;
batch.setBlendFunction(blendMode.getSource(premultipliedAlpha), blendMode.getDest());
}
float red = r * color.r * multiplier;
float green = g * color.g * multiplier;
float blue = b * color.b * multiplier;
float light = NumberUtils.intToFloatColor(((int)alpha << 24) //
| ((int)(blue * lightColor.b) << 16) //
| ((int)(green * lightColor.g) << 8) //
| (int)(red * lightColor.r));
Color darkColor = slot.getDarkColor();
float dark = darkColor == null ? 0
: NumberUtils.intToFloatColor((int)(blue * darkColor.b) << 16 //
| (int)(green * darkColor.g) << 8 //
| (int)(red * darkColor.r));
if (clipper.isClipping()) {
clipper.clipTriangles(vertices, verticesLength, triangles, triangles.length, uvs, light, dark, true);
FloatArray clippedVertices = clipper.getClippedVertices();
ShortArray clippedTriangles = clipper.getClippedTriangles();
if (vertexEffect != null) applyVertexEffect(clippedVertices.items, clippedVertices.size, 6, light, dark);
batch.draw(texture, clippedVertices.items, 0, clippedVertices.size, clippedTriangles.items, 0,
clippedTriangles.size);
} else {
if (vertexEffect != null) {
temp5.set(NumberUtils.floatToIntColor(light));
temp6.set(NumberUtils.floatToIntColor(dark));
for (int v = 0, u = 0; v < verticesLength; v += 6, u += 2) {
tempPos.x = vertices[v];
tempPos.y = vertices[v + 1];
tempLight.set(temp5);
tempDark.set(temp6);
tempUv.x = uvs[u];
tempUv.y = uvs[u + 1];
vertexEffect.transform(tempPos, tempUv, tempLight, tempDark);
vertices[v] = tempPos.x;
vertices[v + 1] = tempPos.y;
vertices[v + 2] = tempLight.toFloatBits();
vertices[v + 3] = tempDark.toFloatBits();
vertices[v + 4] = tempUv.x;
vertices[v + 5] = tempUv.y;
}
} else {
for (int v = 2, u = 0; v < verticesLength; v += 6, u += 2) {
vertices[v] = light;
vertices[v + 1] = dark;
vertices[v + 2] = uvs[u];
vertices[v + 3] = uvs[u + 1];
}
}
batch.draw(texture, vertices, 0, verticesLength, triangles, 0, triangles.length);
}
}
clipper.clipEnd(slot);
}
clipper.clipEnd();
if (vertexEffect != null) vertexEffect.end();
}
private void applyVertexEffect (float[] vertices, int verticesLength, int stride, float light, float dark) {
Vector2 tempPos = this.temp;
Vector2 tempUv = this.temp2;
Color tempLight = this.temp3;
Color tempDark = this.temp4;
Color temp5 = this.temp5;
Color temp6 = this.temp6;
VertexEffect vertexEffect = this.vertexEffect;
temp5.set(NumberUtils.floatToIntColor(light));
temp6.set(NumberUtils.floatToIntColor(dark));
if (stride == 5) {
for (int v = 0; v < verticesLength; v += stride) {
tempPos.x = vertices[v];
tempPos.y = vertices[v + 1];
tempUv.x = vertices[v + 3];
tempUv.y = vertices[v + 4];
tempLight.set(temp5);
tempDark.set(temp6);
vertexEffect.transform(tempPos, tempUv, tempLight, tempDark);
vertices[v] = tempPos.x;
vertices[v + 1] = tempPos.y;
vertices[v + 2] = tempLight.toFloatBits();
vertices[v + 3] = tempUv.x;
vertices[v + 4] = tempUv.y;
}
} else {
for (int v = 0; v < verticesLength; v += stride) {
tempPos.x = vertices[v];
tempPos.y = vertices[v + 1];
tempUv.x = vertices[v + 4];
tempUv.y = vertices[v + 5];
tempLight.set(temp5);
tempDark.set(temp6);
vertexEffect.transform(tempPos, tempUv, tempLight, tempDark);
vertices[v] = tempPos.x;
vertices[v + 1] = tempPos.y;
vertices[v + 2] = tempLight.toFloatBits();
vertices[v + 3] = tempDark.toFloatBits();
vertices[v + 4] = tempUv.x;
vertices[v + 5] = tempUv.y;
}
}
}
public boolean getPremultipliedAlpha () {
return premultipliedAlpha;
}
public void setPremultipliedAlpha (boolean premultipliedAlpha) {
this.premultipliedAlpha = premultipliedAlpha;
}
public VertexEffect getVertexEffect () {
return vertexEffect;
}
public void setVertexEffect (VertexEffect vertexEffect) {
this.vertexEffect = vertexEffect;
}
static public interface VertexEffect {
public void begin (Skeleton skeleton);
public void transform (Vector2 position, Vector2 uv, Color color, Color darkColor);
public void end ();
}
}
