graphics/java/android/renderscript/SimpleMesh.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2008 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package android.renderscript;

 import android.util.Config;
 import android.util.Log;

 /**
  * @hide
  *
  **/
 public class SimpleMesh extends BaseObj {
     Type[] mVertexTypes;
     Type mIndexType;
     //Type mBatcheType;
     Primitive mPrimitive;

     SimpleMesh(int id, RenderScript rs) {
         super(rs);
         mID = id;
     }

     public void bindVertexAllocation(Allocation a, int slot) {
         mRS.nSimpleMeshBindVertex(mID, a.mID, slot);
     }

     public void bindIndexAllocation(Allocation a) {
         mRS.nSimpleMeshBindIndex(mID, a.mID);
     }

     public Allocation createVertexAllocation(int slot) {
         return Allocation.createTyped(mRS, mVertexTypes[slot]);
     }

     public Allocation createIndexAllocation() {
         return Allocation.createTyped(mRS, mIndexType);
     }

     public Type getVertexType(int slot) {
         return mVertexTypes[slot];
     }

     public Type getIndexType() {
         return mIndexType;
     }

     public static class Builder {
         RenderScript mRS;

         class Entry {
             Type t;
             Element e;
             int size;
         }

         int mVertexTypeCount;
         Entry[] mVertexTypes;
         Entry mIndexType;
         //Entry mBatchType;
         Primitive mPrimitive;


         public Builder(RenderScript rs) {
             mRS = rs;
             mVertexTypeCount = 0;
             mVertexTypes = new Entry[16];
             mIndexType = new Entry();
         }

         public int addVertexType(Type t) throws IllegalStateException {
             if (mVertexTypeCount >= mVertexTypes.length) {
                 throw new IllegalStateException("Max vertex types exceeded.");
             }

             int addedIndex = mVertexTypeCount;
             mVertexTypes[mVertexTypeCount] = new Entry();
             mVertexTypes[mVertexTypeCount].t = t;
             mVertexTypeCount++;
             return addedIndex;
         }

         public int addVertexType(Element e, int size) throws IllegalStateException {
             if (mVertexTypeCount >= mVertexTypes.length) {
                 throw new IllegalStateException("Max vertex types exceeded.");
             }

             int addedIndex = mVertexTypeCount;
             mVertexTypes[mVertexTypeCount] = new Entry();
             mVertexTypes[mVertexTypeCount].e = e;
             mVertexTypes[mVertexTypeCount].size = size;
             mVertexTypeCount++;
             return addedIndex;
         }

         public void setIndexType(Type t) {
             mIndexType.t = t;
             mIndexType.e = null;
             mIndexType.size = 0;
         }

         public void setIndexType(Element e, int size) {
             mIndexType.t = null;
             mIndexType.e = e;
             mIndexType.size = size;
         }

         public void setPrimitive(Primitive p) {
             mPrimitive = p;
         }


         Type newType(Element e, int size) {
             Type.Builder tb = new Type.Builder(mRS, e);
             tb.add(Dimension.X, size);
             return tb.create();
         }

         static synchronized SimpleMesh internalCreate(RenderScript rs, Builder b) {
             Type[] toDestroy = new Type[18];
             int toDestroyCount = 0;

             int indexID = 0;
             if (b.mIndexType.t != null) {
                 indexID = b.mIndexType.t.mID;
             } else if (b.mIndexType.size != 0) {
                 b.mIndexType.t = b.newType(b.mIndexType.e, b.mIndexType.size);
                 indexID = b.mIndexType.t.mID;
                 toDestroy[toDestroyCount++] = b.mIndexType.t;
             }

             int[] IDs = new int[b.mVertexTypeCount];
             for(int ct=0; ct < b.mVertexTypeCount; ct++) {
                 if (b.mVertexTypes[ct].t != null) {
                     IDs[ct] = b.mVertexTypes[ct].t.mID;
                 } else {
                     b.mVertexTypes[ct].t = b.newType(b.mVertexTypes[ct].e, b.mVertexTypes[ct].size);
                     IDs[ct] = b.mVertexTypes[ct].t.mID;
                     toDestroy[toDestroyCount++] = b.mVertexTypes[ct].t;
                 }
             }

             int id = rs.nSimpleMeshCreate(0, indexID, IDs, b.mPrimitive.mID);
             for(int ct=0; ct < toDestroyCount; ct++) {
                 toDestroy[ct].destroy();
             }

             return new SimpleMesh(id, rs);
         }

         public SimpleMesh create() {
             SimpleMesh sm = internalCreate(mRS, this);
             sm.mVertexTypes = new Type[mVertexTypeCount];
             for(int ct=0; ct < mVertexTypeCount; ct++) {
                 sm.mVertexTypes[ct] = mVertexTypes[ct].t;
             }
             sm.mIndexType = mIndexType.t;
             sm.mPrimitive = mPrimitive;
             return sm;
         }
     }

     public static class TriangleMeshBuilder {
         float mVtxData[];
         int mVtxCount;
         short mIndexData[];
         int mIndexCount;
         RenderScript mRS;
         Element mElement;

         float mNX = 0;
         float mNY = 0;
         float mNZ = -1;
         float mS0 = 0;
         float mT0 = 0;
         float mR = 1;
         float mG = 1;
         float mB = 1;
         float mA = 1;

         int mVtxSize;
         int mFlags;

         public static final int COLOR = 0x0001;
         public static final int NORMAL = 0x0002;
         public static final int TEXTURE_0 = 0x0100;

         public TriangleMeshBuilder(RenderScript rs, int vtxSize, int flags) {
             mRS = rs;
             mVtxCount = 0;
             mIndexCount = 0;
             mVtxData = new float[128];
             mIndexData = new short[128];
             mVtxSize = vtxSize;
             mFlags = flags;

             if (vtxSize < 2 || vtxSize > 3) {
                 throw new IllegalArgumentException("Vertex size out of range.");
             }
         }

         private void makeSpace(int count) {
             if ((mVtxCount + count) >= mVtxData.length) {
                 float t[] = new float[mVtxData.length * 2];
                 System.arraycopy(mVtxData, 0, t, 0, mVtxData.length);
                 mVtxData = t;
             }
         }

         private void latch() {
             if ((mFlags & COLOR) != 0) {
                 makeSpace(4);
                 mVtxData[mVtxCount++] = mR;
                 mVtxData[mVtxCount++] = mG;
                 mVtxData[mVtxCount++] = mB;
                 mVtxData[mVtxCount++] = mA;
             }
             if ((mFlags & NORMAL) != 0) {
                 makeSpace(3);
                 mVtxData[mVtxCount++] = mNX;
                 mVtxData[mVtxCount++] = mNY;
                 mVtxData[mVtxCount++] = mNZ;
             }
             if ((mFlags & TEXTURE_0) != 0) {
                 makeSpace(2);
                 mVtxData[mVtxCount++] = mS0;
                 mVtxData[mVtxCount++] = mT0;
             }
         }

         public void addVertex(float x, float y) {
             if (mVtxSize != 2) {
                 throw new IllegalStateException("add mistmatch with declared components.");
             }
             makeSpace(2);
             mVtxData[mVtxCount++] = x;
             mVtxData[mVtxCount++] = y;
             latch();
         }

         public void addVertex(float x, float y, float z) {
             if (mVtxSize != 3) {
                 throw new IllegalStateException("add mistmatch with declared components.");
             }
             makeSpace(3);
             mVtxData[mVtxCount++] = x;
             mVtxData[mVtxCount++] = y;
             mVtxData[mVtxCount++] = z;
             latch();
         }

         public void setTexture(float s, float t) {
             if ((mFlags & TEXTURE_0) == 0) {
                 throw new IllegalStateException("add mistmatch with declared components.");
             }
             mS0 = s;
             mT0 = t;
         }

         public void setNormal(float x, float y, float z) {
             if ((mFlags & NORMAL) == 0) {
                 throw new IllegalStateException("add mistmatch with declared components.");
             }
             mNX = x;
             mNY = y;
             mNZ = z;
         }

         public void setColor(float r, float g, float b, float a) {
             if ((mFlags & COLOR) == 0) {
                 throw new IllegalStateException("add mistmatch with declared components.");
             }
             mR = r;
             mG = g;
             mB = b;
             mA = a;
         }

         public void addTriangle(int idx1, int idx2, int idx3) {
             if ((mIndexCount + 3) >= mIndexData.length) {
                 short t[] = new short[mIndexData.length * 2];
                 System.arraycopy(mIndexData, 0, t, 0, mIndexData.length);
                 mIndexData = t;
             }
             mIndexData[mIndexCount++] = (short)idx1;
             mIndexData[mIndexCount++] = (short)idx2;
             mIndexData[mIndexCount++] = (short)idx3;
         }

         public SimpleMesh create() {
             Element.Builder b = new Element.Builder(mRS);
             int floatCount = mVtxSize;
             if (mVtxSize == 2) {
                 b.addFloatXY();
             } else {
                 b.addFloatXYZ();
             }
             if ((mFlags & COLOR) != 0) {
                 floatCount += 4;
                 b.addFloatRGBA();
             }
             if ((mFlags & TEXTURE_0) != 0) {
                 floatCount += 2;
                 b.addFloatST();
             }
             if ((mFlags & NORMAL) != 0) {
                 floatCount += 3;
                 b.addFloatNorm();
             }
             mElement = b.create();

             Builder smb = new Builder(mRS);
             smb.addVertexType(mElement, mVtxCount / floatCount);
             smb.setIndexType(Element.INDEX_16(mRS), mIndexCount);
             smb.setPrimitive(Primitive.TRIANGLE);
             SimpleMesh sm = smb.create();

             Allocation vertexAlloc = sm.createVertexAllocation(0);
             Allocation indexAlloc = sm.createIndexAllocation();
             sm.bindVertexAllocation(vertexAlloc, 0);
             sm.bindIndexAllocation(indexAlloc);

             vertexAlloc.data(mVtxData);
             vertexAlloc.uploadToBufferObject();

             indexAlloc.data(mIndexData);
             indexAlloc.uploadToBufferObject();

             return sm;
         }
     }
 }
	/*
	* Copyright (C) 2008 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package android.renderscript;

	import android.util.Config;
	import android.util.Log;

	/**
	* @hide
	*
	**/
	public class SimpleMesh extends BaseObj {
	Type[] mVertexTypes;
	Type mIndexType;
	//Type mBatcheType;
	Primitive mPrimitive;

	SimpleMesh(int id, RenderScript rs) {
	super(rs);
	mID = id;
	}

	public void bindVertexAllocation(Allocation a, int slot) {
	mRS.nSimpleMeshBindVertex(mID, a.mID, slot);
	}

	public void bindIndexAllocation(Allocation a) {
	mRS.nSimpleMeshBindIndex(mID, a.mID);
	}

	public Allocation createVertexAllocation(int slot) {
	return Allocation.createTyped(mRS, mVertexTypes[slot]);
	}

	public Allocation createIndexAllocation() {
	return Allocation.createTyped(mRS, mIndexType);
	}

	public Type getVertexType(int slot) {
	return mVertexTypes[slot];
	}

	public Type getIndexType() {
	return mIndexType;
	}

	public static class Builder {
	RenderScript mRS;

	class Entry {
	Type t;
	Element e;
	int size;
	}

	int mVertexTypeCount;
	Entry[] mVertexTypes;
	Entry mIndexType;
	//Entry mBatchType;
	Primitive mPrimitive;


	public Builder(RenderScript rs) {
	mRS = rs;
	mVertexTypeCount = 0;
	mVertexTypes = new Entry[16];
	mIndexType = new Entry();
	}

	public int addVertexType(Type t) throws IllegalStateException {
	if (mVertexTypeCount >= mVertexTypes.length) {
	throw new IllegalStateException("Max vertex types exceeded.");
	}

	int addedIndex = mVertexTypeCount;
	mVertexTypes[mVertexTypeCount] = new Entry();
	mVertexTypes[mVertexTypeCount].t = t;
	mVertexTypeCount++;
	return addedIndex;
	}

	public int addVertexType(Element e, int size) throws IllegalStateException {
	if (mVertexTypeCount >= mVertexTypes.length) {
	throw new IllegalStateException("Max vertex types exceeded.");
	}

	int addedIndex = mVertexTypeCount;
	mVertexTypes[mVertexTypeCount] = new Entry();
	mVertexTypes[mVertexTypeCount].e = e;
	mVertexTypes[mVertexTypeCount].size = size;
	mVertexTypeCount++;
	return addedIndex;
	}

	public void setIndexType(Type t) {
	mIndexType.t = t;
	mIndexType.e = null;
	mIndexType.size = 0;
	}

	public void setIndexType(Element e, int size) {
	mIndexType.t = null;
	mIndexType.e = e;
	mIndexType.size = size;
	}

	public void setPrimitive(Primitive p) {
	mPrimitive = p;
	}


	Type newType(Element e, int size) {
	Type.Builder tb = new Type.Builder(mRS, e);
	tb.add(Dimension.X, size);
	return tb.create();
	}

	static synchronized SimpleMesh internalCreate(RenderScript rs, Builder b) {
	Type[] toDestroy = new Type[18];
	int toDestroyCount = 0;

	int indexID = 0;
	if (b.mIndexType.t != null) {
	indexID = b.mIndexType.t.mID;
	} else if (b.mIndexType.size != 0) {
	b.mIndexType.t = b.newType(b.mIndexType.e, b.mIndexType.size);
	indexID = b.mIndexType.t.mID;
	toDestroy[toDestroyCount++] = b.mIndexType.t;
	}

	int[] IDs = new int[b.mVertexTypeCount];
	for(int ct=0; ct < b.mVertexTypeCount; ct++) {
	if (b.mVertexTypes[ct].t != null) {
	IDs[ct] = b.mVertexTypes[ct].t.mID;
	} else {
	b.mVertexTypes[ct].t = b.newType(b.mVertexTypes[ct].e, b.mVertexTypes[ct].size);
	IDs[ct] = b.mVertexTypes[ct].t.mID;
	toDestroy[toDestroyCount++] = b.mVertexTypes[ct].t;
	}
	}

	int id = rs.nSimpleMeshCreate(0, indexID, IDs, b.mPrimitive.mID);
	for(int ct=0; ct < toDestroyCount; ct++) {
	toDestroy[ct].destroy();
	}

	return new SimpleMesh(id, rs);
	}

	public SimpleMesh create() {
	SimpleMesh sm = internalCreate(mRS, this);
	sm.mVertexTypes = new Type[mVertexTypeCount];
	for(int ct=0; ct < mVertexTypeCount; ct++) {
	sm.mVertexTypes[ct] = mVertexTypes[ct].t;
	}
	sm.mIndexType = mIndexType.t;
	sm.mPrimitive = mPrimitive;
	return sm;
	}
	}

	public static class TriangleMeshBuilder {
	float mVtxData[];
	int mVtxCount;
	short mIndexData[];
	int mIndexCount;
	RenderScript mRS;
	Element mElement;

	float mNX = 0;
	float mNY = 0;
	float mNZ = -1;
	float mS0 = 0;
	float mT0 = 0;
	float mR = 1;
	float mG = 1;
	float mB = 1;
	float mA = 1;

	int mVtxSize;
	int mFlags;

	public static final int COLOR = 0x0001;
	public static final int NORMAL = 0x0002;
	public static final int TEXTURE_0 = 0x0100;

	public TriangleMeshBuilder(RenderScript rs, int vtxSize, int flags) {
	mRS = rs;
	mVtxCount = 0;
	mIndexCount = 0;
	mVtxData = new float[128];
	mIndexData = new short[128];
	mVtxSize = vtxSize;
	mFlags = flags;

	if (vtxSize < 2 \|\| vtxSize > 3) {
	throw new IllegalArgumentException("Vertex size out of range.");
	}
	}

	private void makeSpace(int count) {
	if ((mVtxCount + count) >= mVtxData.length) {
	float t[] = new float[mVtxData.length * 2];
	System.arraycopy(mVtxData, 0, t, 0, mVtxData.length);
	mVtxData = t;
	}
	}

	private void latch() {
	if ((mFlags & COLOR) != 0) {
	makeSpace(4);
	mVtxData[mVtxCount++] = mR;
	mVtxData[mVtxCount++] = mG;
	mVtxData[mVtxCount++] = mB;
	mVtxData[mVtxCount++] = mA;
	}
	if ((mFlags & NORMAL) != 0) {
	makeSpace(3);
	mVtxData[mVtxCount++] = mNX;
	mVtxData[mVtxCount++] = mNY;
	mVtxData[mVtxCount++] = mNZ;
	}
	if ((mFlags & TEXTURE_0) != 0) {
	makeSpace(2);
	mVtxData[mVtxCount++] = mS0;
	mVtxData[mVtxCount++] = mT0;
	}
	}

	public void addVertex(float x, float y) {
	if (mVtxSize != 2) {
	throw new IllegalStateException("add mistmatch with declared components.");
	}
	makeSpace(2);
	mVtxData[mVtxCount++] = x;
	mVtxData[mVtxCount++] = y;
	latch();
	}

	public void addVertex(float x, float y, float z) {
	if (mVtxSize != 3) {
	throw new IllegalStateException("add mistmatch with declared components.");
	}
	makeSpace(3);
	mVtxData[mVtxCount++] = x;
	mVtxData[mVtxCount++] = y;
	mVtxData[mVtxCount++] = z;
	latch();
	}

	public void setTexture(float s, float t) {
	if ((mFlags & TEXTURE_0) == 0) {
	throw new IllegalStateException("add mistmatch with declared components.");
	}
	mS0 = s;
	mT0 = t;
	}

	public void setNormal(float x, float y, float z) {
	if ((mFlags & NORMAL) == 0) {
	throw new IllegalStateException("add mistmatch with declared components.");
	}
	mNX = x;
	mNY = y;
	mNZ = z;
	}

	public void setColor(float r, float g, float b, float a) {
	if ((mFlags & COLOR) == 0) {
	throw new IllegalStateException("add mistmatch with declared components.");
	}
	mR = r;
	mG = g;
	mB = b;
	mA = a;
	}

	public void addTriangle(int idx1, int idx2, int idx3) {
	if ((mIndexCount + 3) >= mIndexData.length) {
	short t[] = new short[mIndexData.length * 2];
	System.arraycopy(mIndexData, 0, t, 0, mIndexData.length);
	mIndexData = t;
	}
	mIndexData[mIndexCount++] = (short)idx1;
	mIndexData[mIndexCount++] = (short)idx2;
	mIndexData[mIndexCount++] = (short)idx3;
	}

	public SimpleMesh create() {
	Element.Builder b = new Element.Builder(mRS);
	int floatCount = mVtxSize;
	if (mVtxSize == 2) {
	b.addFloatXY();
	} else {
	b.addFloatXYZ();
	}
	if ((mFlags & COLOR) != 0) {
	floatCount += 4;
	b.addFloatRGBA();
	}
	if ((mFlags & TEXTURE_0) != 0) {
	floatCount += 2;
	b.addFloatST();
	}
	if ((mFlags & NORMAL) != 0) {
	floatCount += 3;
	b.addFloatNorm();
	}
	mElement = b.create();

	Builder smb = new Builder(mRS);
	smb.addVertexType(mElement, mVtxCount / floatCount);
	smb.setIndexType(Element.INDEX_16(mRS), mIndexCount);
	smb.setPrimitive(Primitive.TRIANGLE);
	SimpleMesh sm = smb.create();

	Allocation vertexAlloc = sm.createVertexAllocation(0);
	Allocation indexAlloc = sm.createIndexAllocation();
	sm.bindVertexAllocation(vertexAlloc, 0);
	sm.bindIndexAllocation(indexAlloc);

	vertexAlloc.data(mVtxData);
	vertexAlloc.uploadToBufferObject();

	indexAlloc.data(mIndexData);
	indexAlloc.uploadToBufferObject();

	return sm;
	}
	}
	}