/*
* Copyright (C) 2008-2012 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 java.util.Vector;
/**
* @hide
* @deprecated in API 16
* <p>This class is a container for geometric data displayed with
* RenderScript. Internally, a mesh is a collection of allocations that
* represent vertex data (positions, normals, texture
* coordinates) and index data such as triangles and lines. </p>
* <p>
* Vertex data could either be interleaved within one
* allocation that is provided separately, as multiple allocation
* objects, or done as a combination of both. When a
* vertex channel name matches an input in the vertex program,
* RenderScript automatically connects the two together.
* </p>
* <p>
* Parts of the mesh can be rendered with either explicit
* index sets or primitive types.
* </p>
**/
public class Mesh extends BaseObj {
/**
* @deprecated in API 16
* Describes the way mesh vertex data is interpreted when rendering
*
**/
public enum Primitive {
/**
* @deprecated in API 16
* Vertex data will be rendered as a series of points
*/
POINT (0),
/**
* @deprecated in API 16
* Vertex pairs will be rendered as lines
*/
LINE (1),
/**
* @deprecated in API 16
* Vertex data will be rendered as a connected line strip
*/
LINE_STRIP (2),
/**
* @deprecated in API 16
* Vertices will be rendered as individual triangles
*/
TRIANGLE (3),
/**
* @deprecated in API 16
* Vertices will be rendered as a connected triangle strip
* defined by the first three vertices with each additional
* triangle defined by a new vertex
*/
TRIANGLE_STRIP (4),
/**
* @deprecated in API 16
* Vertices will be rendered as a sequence of triangles that all
* share first vertex as the origin
*/
TRIANGLE_FAN (5);
int mID;
Primitive(int id) {
mID = id;
}
}
Allocation[] mVertexBuffers;
Allocation[] mIndexBuffers;
Primitive[] mPrimitives;
Mesh(long id, RenderScript rs) {
super(id, rs);
}
/**
* @deprecated in API 16
* @return number of allocations containing vertex data
*
**/
public int getVertexAllocationCount() {
if(mVertexBuffers == null) {
return 0;
}
return mVertexBuffers.length;
}
/**
* @deprecated in API 16
* @param slot index in the list of allocations to return
* @return vertex data allocation at the given index
*
**/
public Allocation getVertexAllocation(int slot) {
return mVertexBuffers[slot];
}
/**
* @deprecated in API 16
* @return number of primitives or index sets in the mesh
*
**/
public int getPrimitiveCount() {
if(mIndexBuffers == null) {
return 0;
}
return mIndexBuffers.length;
}
/**
* @deprecated in API 16
* @param slot locaton within the list of index set allocation
* @return allocation containing primtive index data or null if
* the index data is not specified explicitly
*
**/
public Allocation getIndexSetAllocation(int slot) {
return mIndexBuffers[slot];
}
/**
* @deprecated in API 16
* @param slot locaiton within the list of index set primitives
* @return index set primitive type
*
**/
public Primitive getPrimitive(int slot) {
return mPrimitives[slot];
}
@Override
void updateFromNative() {
super.updateFromNative();
int vtxCount = mRS.nMeshGetVertexBufferCount(getID(mRS));
int idxCount = mRS.nMeshGetIndexCount(getID(mRS));
long[] vtxIDs = new long[vtxCount];
long[] idxIDs = new long[idxCount];
int[] primitives = new int[idxCount];
mRS.nMeshGetVertices(getID(mRS), vtxIDs, vtxCount);
mRS.nMeshGetIndices(getID(mRS), idxIDs, primitives, idxCount);
mVertexBuffers = new Allocation[vtxCount];
mIndexBuffers = new Allocation[idxCount];
mPrimitives = new Primitive[idxCount];
for(int i = 0; i < vtxCount; i ++) {
if(vtxIDs[i] != 0) {
mVertexBuffers[i] = new Allocation(vtxIDs[i], mRS, null, Allocation.USAGE_SCRIPT);
mVertexBuffers[i].updateFromNative();
}
}
for(int i = 0; i < idxCount; i ++) {
if(idxIDs[i] != 0) {
mIndexBuffers[i] = new Allocation(idxIDs[i], mRS, null, Allocation.USAGE_SCRIPT);
mIndexBuffers[i].updateFromNative();
}
mPrimitives[i] = Primitive.values()[primitives[i]];
}
}
/**
* @deprecated in API 16
* Mesh builder object. It starts empty and requires you to
* add the types necessary to create vertex and index
* allocations.
*
*/
public static class Builder {
RenderScript mRS;
int mUsage;
class Entry {
Type t;
Element e;
int size;
Primitive prim;
int usage;
}
int mVertexTypeCount;
Entry[] mVertexTypes;
Vector mIndexTypes;
/**
* @deprecated in API 16
* Creates builder object
* @param rs Context to which the mesh will belong.
* @param usage specifies how the mesh allocations are to be
* handled, whether they need to be uploaded to a
* buffer on the gpu, maintain a cpu copy, etc
*/
public Builder(RenderScript rs, int usage) {
mRS = rs;
mUsage = usage;
mVertexTypeCount = 0;
mVertexTypes = new Entry[16];
mIndexTypes = new Vector();
}
/**
* @deprecated in API 16
* @return internal index of the last vertex buffer type added to
* builder
**/
public int getCurrentVertexTypeIndex() {
return mVertexTypeCount - 1;
}
/**
* @deprecated in API 16
* @return internal index of the last index set added to the
* builder
**/
public int getCurrentIndexSetIndex() {
return mIndexTypes.size() - 1;
}
/**
* @deprecated in API 16
* Adds a vertex data type to the builder object
*
* @param t type of the vertex data allocation to be created
*
* @return this
**/
public Builder addVertexType(Type t) throws IllegalStateException {
if (mVertexTypeCount >= mVertexTypes.length) {
throw new IllegalStateException("Max vertex types exceeded.");
}
mVertexTypes[mVertexTypeCount] = new Entry();
mVertexTypes[mVertexTypeCount].t = t;
mVertexTypes[mVertexTypeCount].e = null;
mVertexTypeCount++;
return this;
}
/**
* @deprecated in API 16
* Adds a vertex data type to the builder object
*
* @param e element describing the vertex data layout
* @param size number of elements in the buffer
*
* @return this
**/
public Builder addVertexType(Element e, int size) throws IllegalStateException {
if (mVertexTypeCount >= mVertexTypes.length) {
throw new IllegalStateException("Max vertex types exceeded.");
}
mVertexTypes[mVertexTypeCount] = new Entry();
mVertexTypes[mVertexTypeCount].t = null;
mVertexTypes[mVertexTypeCount].e = e;
mVertexTypes[mVertexTypeCount].size = size;
mVertexTypeCount++;
return this;
}
/**
* @deprecated in API 16
* Adds an index set data type to the builder object
*
* @param t type of the index set data, could be null
* @param p primitive type
*
* @return this
**/
public Builder addIndexSetType(Type t, Primitive p) {
Entry indexType = new Entry();
indexType.t = t;
indexType.e = null;
indexType.size = 0;
indexType.prim = p;
mIndexTypes.addElement(indexType);
return this;
}
/**
* @deprecated in API 16
* Adds an index set primitive type to the builder object
*
* @param p primitive type
*
* @return this
**/
public Builder addIndexSetType(Primitive p) {
Entry indexType = new Entry();
indexType.t = null;
indexType.e = null;
indexType.size = 0;
indexType.prim = p;
mIndexTypes.addElement(indexType);
return this;
}
/**
* @deprecated in API 16
* Adds an index set data type to the builder object
*
* @param e element describing the index set data layout
* @param size number of elements in the buffer
* @param p primitive type
*
* @return this
**/
public Builder addIndexSetType(Element e, int size, Primitive p) {
Entry indexType = new Entry();
indexType.t = null;
indexType.e = e;
indexType.size = size;
indexType.prim = p;
mIndexTypes.addElement(indexType);
return this;
}
Type newType(Element e, int size) {
Type.Builder tb = new Type.Builder(mRS, e);
tb.setX(size);
return tb.create();
}
/**
* @deprecated in API 16
* Create a Mesh object from the current state of the builder
*
**/
public Mesh create() {
mRS.validate();
long[] vtx = new long[mVertexTypeCount];
long[] idx = new long[mIndexTypes.size()];
int[] prim = new int[mIndexTypes.size()];
Allocation[] vertexBuffers = new Allocation[mVertexTypeCount];
Allocation[] indexBuffers = new Allocation[mIndexTypes.size()];
Primitive[] primitives = new Primitive[mIndexTypes.size()];
for(int ct = 0; ct < mVertexTypeCount; ct ++) {
Allocation alloc = null;
Entry entry = mVertexTypes[ct];
if (entry.t != null) {
alloc = Allocation.createTyped(mRS, entry.t, mUsage);
} else if(entry.e != null) {
alloc = Allocation.createSized(mRS, entry.e, entry.size, mUsage);
}
vertexBuffers[ct] = alloc;
vtx[ct] = alloc.getID(mRS);
}
for(int ct = 0; ct < mIndexTypes.size(); ct ++) {
Allocation alloc = null;
Entry entry = (Entry)mIndexTypes.elementAt(ct);
if (entry.t != null) {
alloc = Allocation.createTyped(mRS, entry.t, mUsage);
} else if(entry.e != null) {
alloc = Allocation.createSized(mRS, entry.e, entry.size, mUsage);
}
long allocID = (alloc == null) ? 0 : alloc.getID(mRS);
indexBuffers[ct] = alloc;
primitives[ct] = entry.prim;
idx[ct] = allocID;
prim[ct] = entry.prim.mID;
}
long id = mRS.nMeshCreate(vtx, idx, prim);
Mesh newMesh = new Mesh(id, mRS);
newMesh.mVertexBuffers = vertexBuffers;
newMesh.mIndexBuffers = indexBuffers;
newMesh.mPrimitives = primitives;
return newMesh;
}
}
/**
* @deprecated in API 16
* Mesh builder object. It starts empty and requires the user to
* add all the vertex and index allocations that comprise the
* mesh
*
*/
public static class AllocationBuilder {
RenderScript mRS;
class Entry {
Allocation a;
Primitive prim;
}
int mVertexTypeCount;
Entry[] mVertexTypes;
Vector mIndexTypes;
/**
* @deprecated in API 16
**/
public AllocationBuilder(RenderScript rs) {
mRS = rs;
mVertexTypeCount = 0;
mVertexTypes = new Entry[16];
mIndexTypes = new Vector();
}
/**
* @deprecated in API 16
* @return internal index of the last vertex buffer type added to
* builder
**/
public int getCurrentVertexTypeIndex() {
return mVertexTypeCount - 1;
}
/**
* @deprecated in API 16
* @return internal index of the last index set added to the
* builder
**/
public int getCurrentIndexSetIndex() {
return mIndexTypes.size() - 1;
}
/**
* @deprecated in API 16
* Adds an allocation containing vertex buffer data to the
* builder
*
* @param a vertex data allocation
*
* @return this
**/
public AllocationBuilder addVertexAllocation(Allocation a) throws IllegalStateException {
if (mVertexTypeCount >= mVertexTypes.length) {
throw new IllegalStateException("Max vertex types exceeded.");
}
mVertexTypes[mVertexTypeCount] = new Entry();
mVertexTypes[mVertexTypeCount].a = a;
mVertexTypeCount++;
return this;
}
/**
* @deprecated in API 16
* Adds an allocation containing index buffer data and index type
* to the builder
*
* @param a index set data allocation, could be null
* @param p index set primitive type
*
* @return this
**/
public AllocationBuilder addIndexSetAllocation(Allocation a, Primitive p) {
Entry indexType = new Entry();
indexType.a = a;
indexType.prim = p;
mIndexTypes.addElement(indexType);
return this;
}
/**
* @deprecated in API 16
* Adds an index set type to the builder
*
* @param p index set primitive type
*
* @return this
**/
public AllocationBuilder addIndexSetType(Primitive p) {
Entry indexType = new Entry();
indexType.a = null;
indexType.prim = p;
mIndexTypes.addElement(indexType);
return this;
}
/**
* @deprecated in API 16
* Create a Mesh object from the current state of the builder
*
**/
public Mesh create() {
mRS.validate();
long[] vtx = new long[mVertexTypeCount];
long[] idx = new long[mIndexTypes.size()];
int[] prim = new int[mIndexTypes.size()];
Allocation[] indexBuffers = new Allocation[mIndexTypes.size()];
Primitive[] primitives = new Primitive[mIndexTypes.size()];
Allocation[] vertexBuffers = new Allocation[mVertexTypeCount];
for(int ct = 0; ct < mVertexTypeCount; ct ++) {
Entry entry = mVertexTypes[ct];
vertexBuffers[ct] = entry.a;
vtx[ct] = entry.a.getID(mRS);
}
for(int ct = 0; ct < mIndexTypes.size(); ct ++) {
Entry entry = (Entry)mIndexTypes.elementAt(ct);
long allocID = (entry.a == null) ? 0 : entry.a.getID(mRS);
indexBuffers[ct] = entry.a;
primitives[ct] = entry.prim;
idx[ct] = allocID;
prim[ct] = entry.prim.mID;
}
long id = mRS.nMeshCreate(vtx, idx, prim);
Mesh newMesh = new Mesh(id, mRS);
newMesh.mVertexBuffers = vertexBuffers;
newMesh.mIndexBuffers = indexBuffers;
newMesh.mPrimitives = primitives;
return newMesh;
}
}
/**
* @deprecated in API 16
* Builder that allows creation of a mesh object point by point
* and triangle by triangle
*
**/
public static class TriangleMeshBuilder {
float mVtxData[];
int mVtxCount;
int mMaxIndex;
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;
/**
* @deprecated in API 16
**/
public static final int COLOR = 0x0001;
/**
* @deprecated in API 16
**/
public static final int NORMAL = 0x0002;
/**
* @deprecated in API 16
**/
public static final int TEXTURE_0 = 0x0100;
/**
* @deprecated in API 16
* @param rs Context to which the mesh will belong.
* @param vtxSize specifies whether the vertex is a float2 or
* float3
* @param flags bitfield that is a combination of COLOR, NORMAL,
* and TEXTURE_0 that specifies what vertex data
* channels are present in the mesh
*
**/
public TriangleMeshBuilder(RenderScript rs, int vtxSize, int flags) {
mRS = rs;
mVtxCount = 0;
mMaxIndex = 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 & TEXTURE_0) != 0) {
makeSpace(2);
mVtxData[mVtxCount++] = mS0;
mVtxData[mVtxCount++] = mT0;
}
if ((mFlags & NORMAL) != 0) {
makeSpace(4);
mVtxData[mVtxCount++] = mNX;
mVtxData[mVtxCount++] = mNY;
mVtxData[mVtxCount++] = mNZ;
mVtxData[mVtxCount++] = 0.0f;
}
mMaxIndex ++;
}
/**
* @deprecated in API 16
* Adds a float2 vertex to the mesh
*
* @param x position x
* @param y position y
*
* @return this
*
**/
public TriangleMeshBuilder 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();
return this;
}
/**
* @deprecated in API 16
* Adds a float3 vertex to the mesh
*
* @param x position x
* @param y position y
* @param z position z
*
* @return this
*
**/
public TriangleMeshBuilder addVertex(float x, float y, float z) {
if (mVtxSize != 3) {
throw new IllegalStateException("add mistmatch with declared components.");
}
makeSpace(4);
mVtxData[mVtxCount++] = x;
mVtxData[mVtxCount++] = y;
mVtxData[mVtxCount++] = z;
mVtxData[mVtxCount++] = 1.0f;
latch();
return this;
}
/**
* @deprecated in API 16
* Sets the texture coordinate for the vertices that are added after this method call.
*
* @param s texture coordinate s
* @param t texture coordinate t
*
* @return this
**/
public TriangleMeshBuilder setTexture(float s, float t) {
if ((mFlags & TEXTURE_0) == 0) {
throw new IllegalStateException("add mistmatch with declared components.");
}
mS0 = s;
mT0 = t;
return this;
}
/**
* @deprecated in API 16
* Sets the normal vector for the vertices that are added after this method call.
*
* @param x normal vector x
* @param y normal vector y
* @param z normal vector z
*
* @return this
**/
public TriangleMeshBuilder 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;
return this;
}
/**
* @deprecated in API 16
* Sets the color for the vertices that are added after this method call.
*
* @param r red component
* @param g green component
* @param b blue component
* @param a alpha component
*
* @return this
**/
public TriangleMeshBuilder 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;
return this;
}
/**
* @deprecated in API 16
* Adds a new triangle to the mesh builder
*
* @param idx1 index of the first vertex in the triangle
* @param idx2 index of the second vertex in the triangle
* @param idx3 index of the third vertex in the triangle
*
* @return this
**/
public TriangleMeshBuilder addTriangle(int idx1, int idx2, int idx3) {
if((idx1 >= mMaxIndex) || (idx1 < 0) ||
(idx2 >= mMaxIndex) || (idx2 < 0) ||
(idx3 >= mMaxIndex) || (idx3 < 0)) {
throw new IllegalStateException("Index provided greater than vertex count.");
}
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;
return this;
}
/**
* @deprecated in API 16
* Creates the mesh object from the current state of the builder
*
* @param uploadToBufferObject specifies whether the vertex data
* is to be uploaded into the buffer
* object indicating that it's likely
* not going to be modified and
* rendered many times.
* Alternatively, it indicates the
* mesh data will be updated
* frequently and remain in script
* accessible memory
*
**/
public Mesh create(boolean uploadToBufferObject) {
Element.Builder b = new Element.Builder(mRS);
b.add(Element.createVector(mRS,
Element.DataType.FLOAT_32,
mVtxSize), "position");
if ((mFlags & COLOR) != 0) {
b.add(Element.F32_4(mRS), "color");
}
if ((mFlags & TEXTURE_0) != 0) {
b.add(Element.F32_2(mRS), "texture0");
}
if ((mFlags & NORMAL) != 0) {
b.add(Element.F32_3(mRS), "normal");
}
mElement = b.create();
int usage = Allocation.USAGE_SCRIPT;
if (uploadToBufferObject) {
usage |= Allocation.USAGE_GRAPHICS_VERTEX;
}
Builder smb = new Builder(mRS, usage);
smb.addVertexType(mElement, mMaxIndex);
smb.addIndexSetType(Element.U16(mRS), mIndexCount, Primitive.TRIANGLE);
Mesh sm = smb.create();
sm.getVertexAllocation(0).copy1DRangeFromUnchecked(0, mMaxIndex, mVtxData);
if(uploadToBufferObject) {
if (uploadToBufferObject) {
sm.getVertexAllocation(0).syncAll(Allocation.USAGE_SCRIPT);
}
}
sm.getIndexSetAllocation(0).copy1DRangeFromUnchecked(0, mIndexCount, mIndexData);
if (uploadToBufferObject) {
sm.getIndexSetAllocation(0).syncAll(Allocation.USAGE_SCRIPT);
}
return sm;
}
}
}
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