mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-02-04 14:24:53 +08:00
216 lines
8.0 KiB
C#
216 lines
8.0 KiB
C#
/******************************************************************************
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* Spine Runtimes Software License
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* Version 2.3
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*
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* Copyright (c) 2013-2015, Esoteric Software
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* All rights reserved.
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*
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* You are granted a perpetual, non-exclusive, non-sublicensable and
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* non-transferable license to use, install, execute and perform the Spine
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* Runtimes Software (the "Software") and derivative works solely for personal
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* or internal use. Without the written permission of Esoteric Software (see
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* Section 2 of the Spine Software License Agreement), you may not (a) modify,
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* translate, adapt or otherwise create derivative works, improvements of the
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* Software or develop new applications using the Software or (b) remove,
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* delete, alter or obscure any trademarks or any copyright, trademark, patent
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* or other intellectual property or proprietary rights notices on or in the
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* Software, including any copy thereof. Redistributions in binary or source
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* form must include this license and terms.
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*
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* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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using System;
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using System.Collections.Generic;
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using Microsoft.Xna.Framework.Graphics;
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using Microsoft.Xna.Framework;
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namespace Spine {
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/// <summary>Draws region and mesh attachments.</summary>
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public class SkeletonRenderer {
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private const int TL = 0;
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private const int TR = 1;
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private const int BL = 2;
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private const int BR = 3;
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SkeletonClipping clipper = new SkeletonClipping();
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GraphicsDevice device;
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MeshBatcher batcher;
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public MeshBatcher Batcher { get { return batcher; } }
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RasterizerState rasterizerState;
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float[] vertices = new float[8];
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int[] quadTriangles = { 0, 1, 2, 2, 3, 0 };
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BlendState defaultBlendState;
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Effect effect;
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public Effect Effect { get { return effect; } set { effect = value; } }
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public IVertexEffect VertexEffect { get; set; }
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private bool premultipliedAlpha;
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public bool PremultipliedAlpha { get { return premultipliedAlpha; } set { premultipliedAlpha = value; } }
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public SkeletonRenderer (GraphicsDevice device) {
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this.device = device;
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batcher = new MeshBatcher();
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var basicEffect = new BasicEffect(device);
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basicEffect.World = Matrix.Identity;
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basicEffect.View = Matrix.CreateLookAt(new Vector3(0.0f, 0.0f, 1.0f), Vector3.Zero, Vector3.Up);
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basicEffect.TextureEnabled = true;
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basicEffect.VertexColorEnabled = true;
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effect = basicEffect;
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rasterizerState = new RasterizerState();
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rasterizerState.CullMode = CullMode.None;
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Bone.yDown = true;
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}
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public void Begin () {
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defaultBlendState = premultipliedAlpha ? BlendState.AlphaBlend : BlendState.NonPremultiplied;
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device.RasterizerState = rasterizerState;
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device.BlendState = defaultBlendState;
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}
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public void End () {
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foreach (EffectPass pass in effect.CurrentTechnique.Passes) {
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pass.Apply();
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batcher.Draw(device);
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}
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}
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public void Draw(Skeleton skeleton) {
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var drawOrder = skeleton.DrawOrder;
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var drawOrderItems = skeleton.DrawOrder.Items;
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float skeletonR = skeleton.R, skeletonG = skeleton.G, skeletonB = skeleton.B, skeletonA = skeleton.A;
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Color color = new Color();
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if (VertexEffect != null) VertexEffect.Begin(skeleton);
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for (int i = 0, n = drawOrder.Count; i < n; i++) {
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Slot slot = drawOrderItems[i];
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Attachment attachment = slot.Attachment;
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float attachmentColorR, attachmentColorG, attachmentColorB, attachmentColorA;
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Texture2D texture = null;
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int verticesCount = 0;
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float[] vertices = this.vertices;
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int indicesCount = 0;
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int[] indices = null;
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float[] uvs = null;
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if (attachment is RegionAttachment) {
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RegionAttachment regionAttachment = (RegionAttachment)attachment;
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attachmentColorR = regionAttachment.R; attachmentColorG = regionAttachment.G; attachmentColorB = regionAttachment.B; attachmentColorA = regionAttachment.A;
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AtlasRegion region = (AtlasRegion)regionAttachment.RendererObject;
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texture = (Texture2D)region.page.rendererObject;
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verticesCount = 4;
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regionAttachment.ComputeWorldVertices(slot.Bone, vertices, 0, 2);
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indicesCount = 6;
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indices = quadTriangles;
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uvs = regionAttachment.UVs;
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}
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else if (attachment is MeshAttachment) {
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MeshAttachment mesh = (MeshAttachment)attachment;
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attachmentColorR = mesh.R; attachmentColorG = mesh.G; attachmentColorB = mesh.B; attachmentColorA = mesh.A;
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AtlasRegion region = (AtlasRegion)mesh.RendererObject;
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texture = (Texture2D)region.page.rendererObject;
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int vertexCount = mesh.WorldVerticesLength;
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if (vertices.Length < vertexCount) vertices = new float[vertexCount];
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verticesCount = vertexCount >> 1;
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mesh.ComputeWorldVertices(slot, vertices);
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indicesCount = mesh.Triangles.Length;
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indices = mesh.Triangles;
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uvs = mesh.UVs;
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}
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else if (attachment is ClippingAttachment) {
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ClippingAttachment clip = (ClippingAttachment)attachment;
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clipper.ClipStart(slot, clip);
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continue;
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}
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else {
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continue;
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}
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// set blend state
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BlendState blend = slot.Data.BlendMode == BlendMode.Additive ? BlendState.Additive : defaultBlendState;
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if (device.BlendState != blend) {
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//End();
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//device.BlendState = blend;
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}
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// calculate color
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float a = skeletonA * slot.A * attachmentColorA;
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if (premultipliedAlpha) {
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color = new Color(
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skeletonR * slot.R * attachmentColorR * a,
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skeletonG * slot.G * attachmentColorG * a,
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skeletonB * slot.B * attachmentColorB * a, a);
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}
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else {
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color = new Color(
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skeletonR * slot.R * attachmentColorR,
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skeletonG * slot.G * attachmentColorG,
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skeletonB * slot.B * attachmentColorB, a);
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}
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Color darkColor = new Color();
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if (slot.HasSecondColor) {
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if (premultipliedAlpha) {
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darkColor = new Color(slot.R2 * a, slot.G2 * a, slot.B2 * a);
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} else {
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darkColor = new Color(slot.R2 * a, slot.G2 * a, slot.B2 * a);
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}
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}
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darkColor.A = premultipliedAlpha ? (byte)255 : (byte)0;
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// clip
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if (clipper.IsClipping) {
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clipper.ClipTriangles(vertices, verticesCount << 1, indices, indicesCount, uvs);
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vertices = clipper.ClippedVertices.Items;
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verticesCount = clipper.ClippedVertices.Count >> 1;
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indices = clipper.ClippedTriangles.Items;
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indicesCount = clipper.ClippedTriangles.Count;
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uvs = clipper.ClippedUVs.Items;
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}
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if (verticesCount == 0 || indicesCount == 0)
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continue;
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// submit to batch
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MeshItem item = batcher.NextItem(verticesCount, indicesCount);
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item.texture = texture;
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for (int ii = 0, nn = indicesCount; ii < nn; ii++) {
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item.triangles[ii] = indices[ii];
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}
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VertexPositionColorTextureColor[] itemVertices = item.vertices;
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for (int ii = 0, v = 0, nn = verticesCount << 1; v < nn; ii++, v += 2) {
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itemVertices[ii].Color = color;
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itemVertices[ii].Color2 = darkColor;
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itemVertices[ii].Position.X = vertices[v];
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itemVertices[ii].Position.Y = vertices[v + 1];
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itemVertices[ii].Position.Z = 0;
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itemVertices[ii].TextureCoordinate.X = uvs[v];
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itemVertices[ii].TextureCoordinate.Y = uvs[v + 1];
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if (VertexEffect != null) VertexEffect.Transform(ref itemVertices[ii]);
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}
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clipper.ClipEnd(slot);
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}
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clipper.ClipEnd();
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if (VertexEffect != null) VertexEffect.End();
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}
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}
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}
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