rsMesh.cpp - platform/frameworks/rs - Gitiles

 /*
  * Copyright (C) 2011 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.
  */

 #include "rsContext.h"
 #include "rsMesh.h"
 #include "rs.h"

 using namespace android;
 using namespace android::renderscript;

 Mesh::Mesh(Context *rsc) : ObjectBase(rsc) {
     mHal.drv = nullptr;
     mHal.state.primitives = nullptr;
     mHal.state.primitivesCount = 0;
     mHal.state.indexBuffers = nullptr;
     mHal.state.indexBuffersCount = 0;
     mHal.state.vertexBuffers = nullptr;
     mHal.state.vertexBuffersCount = 0;
     mInitialized = false;

     mVertexBuffers = nullptr;
     mIndexBuffers = nullptr;
 }

 Mesh::Mesh(Context *rsc,
            uint32_t vertexBuffersCount,
            uint32_t primitivesCount) : ObjectBase(rsc) {
     mHal.drv = nullptr;
     mHal.state.primitivesCount = primitivesCount;
     mHal.state.indexBuffersCount = primitivesCount;
     mHal.state.primitives = new RsPrimitive[mHal.state.primitivesCount];
     mHal.state.indexBuffers = new Allocation *[mHal.state.indexBuffersCount];
     for (uint32_t i = 0; i < mHal.state.primitivesCount; i ++) {
         mHal.state.primitives[i] = RS_PRIMITIVE_POINT;
     }
     for (uint32_t i = 0; i < mHal.state.indexBuffersCount; i ++) {
         mHal.state.indexBuffers[i] = nullptr;
     }
     mHal.state.vertexBuffersCount = vertexBuffersCount;
     mHal.state.vertexBuffers = new Allocation *[mHal.state.vertexBuffersCount];
     for (uint32_t i = 0; i < mHal.state.vertexBuffersCount; i ++) {
         mHal.state.vertexBuffers[i] = nullptr;
     }

     mVertexBuffers = new ObjectBaseRef<Allocation>[mHal.state.vertexBuffersCount];
     mIndexBuffers = new ObjectBaseRef<Allocation>[mHal.state.primitivesCount];
 }

 Mesh::~Mesh() {
 #ifndef ANDROID_RS_SERIALIZE
     mRSC->mHal.funcs.mesh.destroy(mRSC, this);
 #endif

     delete[] mHal.state.vertexBuffers;
     delete[] mHal.state.primitives;
     delete[] mHal.state.indexBuffers;

     delete[] mVertexBuffers;
     delete[] mIndexBuffers;
 }

 void Mesh::init() {
 #ifndef ANDROID_RS_SERIALIZE
     mRSC->mHal.funcs.mesh.init(mRSC, this);
 #endif
 }

 void Mesh::serialize(Context *rsc, OStream *stream) const {
     // Need to identify ourselves
     stream->addU32((uint32_t)getClassId());
     stream->addString(getName());

     // Store number of vertex streams
     stream->addU32(mHal.state.vertexBuffersCount);
     for (uint32_t vCount = 0; vCount < mHal.state.vertexBuffersCount; vCount ++) {
         mHal.state.vertexBuffers[vCount]->serialize(rsc, stream);
     }

     stream->addU32(mHal.state.primitivesCount);
     // Store the primitives
     for (uint32_t pCount = 0; pCount < mHal.state.primitivesCount; pCount ++) {
         stream->addU8((uint8_t)mHal.state.primitives[pCount]);

         if (mHal.state.indexBuffers[pCount]) {
             stream->addU32(1);
             mHal.state.indexBuffers[pCount]->serialize(rsc, stream);
         } else {
             stream->addU32(0);
         }
     }
 }

 Mesh *Mesh::createFromStream(Context *rsc, IStream *stream) {
     // First make sure we are reading the correct object
     RsA3DClassID classID = (RsA3DClassID)stream->loadU32();
     if (classID != RS_A3D_CLASS_ID_MESH) {
         ALOGE("mesh loading skipped due to invalid class id");
         return nullptr;
     }

     const char *name = stream->loadString();

     uint32_t vertexBuffersCount = stream->loadU32();
     ObjectBaseRef<Allocation> *vertexBuffers = nullptr;
     if (vertexBuffersCount) {
         vertexBuffers = new ObjectBaseRef<Allocation>[vertexBuffersCount];

         for (uint32_t vCount = 0; vCount < vertexBuffersCount; vCount ++) {
             Allocation *vertexAlloc = Allocation::createFromStream(rsc, stream);
             vertexBuffers[vCount].set(vertexAlloc);
         }
     }

     uint32_t primitivesCount = stream->loadU32();
     ObjectBaseRef<Allocation> *indexBuffers = nullptr;
     RsPrimitive *primitives = nullptr;
     if (primitivesCount) {
         indexBuffers = new ObjectBaseRef<Allocation>[primitivesCount];
         primitives = new RsPrimitive[primitivesCount];

         // load all primitives
         for (uint32_t pCount = 0; pCount < primitivesCount; pCount ++) {
             primitives[pCount] = (RsPrimitive)stream->loadU8();

             // Check to see if the index buffer was stored
             uint32_t isIndexPresent = stream->loadU32();
             if (isIndexPresent) {
                 Allocation *indexAlloc = Allocation::createFromStream(rsc, stream);
                 indexBuffers[pCount].set(indexAlloc);
             }
         }
     }

     Mesh *mesh = new Mesh(rsc, vertexBuffersCount, primitivesCount);
     mesh->assignName(name);
     for (uint32_t vCount = 0; vCount < vertexBuffersCount; vCount ++) {
         mesh->setVertexBuffer(vertexBuffers[vCount].get(), vCount);
     }
     for (uint32_t pCount = 0; pCount < primitivesCount; pCount ++) {
         mesh->setPrimitive(indexBuffers[pCount].get(), primitives[pCount], pCount);
     }

     // Cleanup
     if (vertexBuffersCount) {
         delete[] vertexBuffers;
     }
     if (primitivesCount) {
         delete[] indexBuffers;
         delete[] primitives;
     }

 #ifndef ANDROID_RS_SERIALIZE
     mesh->init();
     mesh->uploadAll(rsc);
 #endif
     return mesh;
 }

 void Mesh::render(Context *rsc) const {
     for (uint32_t ct = 0; ct < mHal.state.primitivesCount; ct ++) {
         renderPrimitive(rsc, ct);
     }
 }

 void Mesh::renderPrimitive(Context *rsc, uint32_t primIndex) const {
     if (primIndex >= mHal.state.primitivesCount) {
         ALOGE("Invalid primitive index");
         return;
     }

     if (mHal.state.indexBuffers[primIndex]) {
         renderPrimitiveRange(rsc, primIndex, 0, mHal.state.indexBuffers[primIndex]->getType()->getDimX());
         return;
     }

     renderPrimitiveRange(rsc, primIndex, 0, mHal.state.vertexBuffers[0]->getType()->getDimX());
 }

 void Mesh::renderPrimitiveRange(Context *rsc, uint32_t primIndex, uint32_t start, uint32_t len) const {
     if (len < 1 || primIndex >= mHal.state.primitivesCount) {
         ALOGE("Invalid mesh or parameters");
         return;
     }

     mRSC->mHal.funcs.mesh.draw(mRSC, this, primIndex, start, len);
 }

 void Mesh::uploadAll(Context *rsc) {
     for (uint32_t ct = 0; ct < mHal.state.vertexBuffersCount; ct ++) {
         if (mHal.state.vertexBuffers[ct]) {
             rsc->mHal.funcs.allocation.markDirty(rsc, mHal.state.vertexBuffers[ct]);
         }
     }

     for (uint32_t ct = 0; ct < mHal.state.primitivesCount; ct ++) {
         if (mHal.state.indexBuffers[ct]) {
             rsc->mHal.funcs.allocation.markDirty(rsc, mHal.state.indexBuffers[ct]);
         }
     }
 }

 void Mesh::computeBBox(Context *rsc) {
     float *posPtr = nullptr;
     uint32_t vectorSize = 0;
     uint32_t stride = 0;
     uint32_t numVerts = 0;
     Allocation *posAlloc = nullptr;
     // First we need to find the position ptr and stride
     for (uint32_t ct=0; ct < mHal.state.vertexBuffersCount; ct++) {
         const Type *bufferType = mHal.state.vertexBuffers[ct]->getType();
         const Element *bufferElem = bufferType->getElement();

         for (uint32_t ct=0; ct < bufferElem->getFieldCount(); ct++) {
             if (strcmp(bufferElem->getFieldName(ct), "position") == 0) {
                 vectorSize = bufferElem->getField(ct)->getComponent().getVectorSize();
                 stride = bufferElem->getSizeBytes() / sizeof(float);
                 uint32_t offset = bufferElem->getFieldOffsetBytes(ct);
                 posAlloc = mHal.state.vertexBuffers[ct];
                 const uint8_t *bp = (const uint8_t *)rsc->mHal.funcs.allocation.lock1D(
                         rsc, posAlloc);
                 posPtr = (float*)(bp + offset);
                 numVerts = bufferType->getDimX();
                 break;
             }
         }
         if (posPtr) {
             break;
         }
     }

     mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 1e6;
     mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = -1e6;
     if (!posPtr) {
         ALOGE("Unable to compute bounding box");
         mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 0.0f;
         mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = 0.0f;
         return;
     }

     for (uint32_t i = 0; i < numVerts; i ++) {
         for (uint32_t v = 0; v < vectorSize; v ++) {
             mBBoxMin[v] = rsMin(mBBoxMin[v], posPtr[v]);
             mBBoxMax[v] = rsMax(mBBoxMax[v], posPtr[v]);
         }
         posPtr += stride;
     }

     if (posAlloc) {
         rsc->mHal.funcs.allocation.unlock1D(rsc, posAlloc);
     }
 }

 namespace android {
 namespace renderscript {

 RsMesh rsi_MeshCreate(Context *rsc,
                       RsAllocation * vtx, size_t vtxCount,
                       RsAllocation * idx, size_t idxCount,
                       uint32_t * primType, size_t primTypeCount) {
     rsAssert(idxCount == primTypeCount);
     Mesh *sm = new Mesh(rsc, vtxCount, idxCount);
     sm->incUserRef();

     for (uint32_t i = 0; i < vtxCount; i ++) {
         sm->setVertexBuffer((Allocation*)vtx[i], i);
     }

     for (uint32_t i = 0; i < idxCount; i ++) {
         sm->setPrimitive((Allocation*)idx[i], (RsPrimitive)primType[i], i);
     }

     sm->init();

     return sm;
 }

 }}

 void rsaMeshGetVertexBufferCount(RsContext con, RsMesh mv, int32_t *numVtx) {
     Mesh *sm = static_cast<Mesh *>(mv);
     *numVtx = sm->mHal.state.vertexBuffersCount;
 }

 void rsaMeshGetIndexCount(RsContext con, RsMesh mv, int32_t *numIdx) {
     Mesh *sm = static_cast<Mesh *>(mv);
     *numIdx = sm->mHal.state.primitivesCount;
 }

 void rsaMeshGetVertices(RsContext con, RsMesh mv, RsAllocation *vtxData, uint32_t vtxDataCount) {
     Mesh *sm = static_cast<Mesh *>(mv);
     rsAssert(vtxDataCount == sm->mHal.state.vertexBuffersCount);

     for (uint32_t ct = 0; ct < vtxDataCount; ct ++) {
         vtxData[ct] = sm->mHal.state.vertexBuffers[ct];
         sm->mHal.state.vertexBuffers[ct]->incUserRef();
     }
 }

 void rsaMeshGetIndices(RsContext con, RsMesh mv, RsAllocation *va, uint32_t *primType, uint32_t idxDataCount) {
     Mesh *sm = static_cast<Mesh *>(mv);
     rsAssert(idxDataCount == sm->mHal.state.primitivesCount);

     for (uint32_t ct = 0; ct < idxDataCount; ct ++) {
         va[ct] = sm->mHal.state.indexBuffers[ct];
         primType[ct] = sm->mHal.state.primitives[ct];
         if (sm->mHal.state.indexBuffers[ct]) {
             sm->mHal.state.indexBuffers[ct]->incUserRef();
         }
     }
 }
	/*
	* Copyright (C) 2011 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.
	*/

	#include "rsContext.h"
	#include "rsMesh.h"
	#include "rs.h"

	using namespace android;
	using namespace android::renderscript;

	Mesh::Mesh(Context *rsc) : ObjectBase(rsc) {
	mHal.drv = nullptr;
	mHal.state.primitives = nullptr;
	mHal.state.primitivesCount = 0;
	mHal.state.indexBuffers = nullptr;
	mHal.state.indexBuffersCount = 0;
	mHal.state.vertexBuffers = nullptr;
	mHal.state.vertexBuffersCount = 0;
	mInitialized = false;

	mVertexBuffers = nullptr;
	mIndexBuffers = nullptr;
	}

	Mesh::Mesh(Context *rsc,
	uint32_t vertexBuffersCount,
	uint32_t primitivesCount) : ObjectBase(rsc) {
	mHal.drv = nullptr;
	mHal.state.primitivesCount = primitivesCount;
	mHal.state.indexBuffersCount = primitivesCount;
	mHal.state.primitives = new RsPrimitive[mHal.state.primitivesCount];
	mHal.state.indexBuffers = new Allocation *[mHal.state.indexBuffersCount];
	for (uint32_t i = 0; i < mHal.state.primitivesCount; i ++) {
	mHal.state.primitives[i] = RS_PRIMITIVE_POINT;
	}
	for (uint32_t i = 0; i < mHal.state.indexBuffersCount; i ++) {
	mHal.state.indexBuffers[i] = nullptr;
	}
	mHal.state.vertexBuffersCount = vertexBuffersCount;
	mHal.state.vertexBuffers = new Allocation *[mHal.state.vertexBuffersCount];
	for (uint32_t i = 0; i < mHal.state.vertexBuffersCount; i ++) {
	mHal.state.vertexBuffers[i] = nullptr;
	}

	mVertexBuffers = new ObjectBaseRef<Allocation>[mHal.state.vertexBuffersCount];
	mIndexBuffers = new ObjectBaseRef<Allocation>[mHal.state.primitivesCount];
	}

	Mesh::~Mesh() {
	#ifndef ANDROID_RS_SERIALIZE
	mRSC->mHal.funcs.mesh.destroy(mRSC, this);
	#endif

	delete[] mHal.state.vertexBuffers;
	delete[] mHal.state.primitives;
	delete[] mHal.state.indexBuffers;

	delete[] mVertexBuffers;
	delete[] mIndexBuffers;
	}

	void Mesh::init() {
	#ifndef ANDROID_RS_SERIALIZE
	mRSC->mHal.funcs.mesh.init(mRSC, this);
	#endif
	}

	void Mesh::serialize(Context rsc, OStream stream) const {
	// Need to identify ourselves
	stream->addU32((uint32_t)getClassId());
	stream->addString(getName());

	// Store number of vertex streams
	stream->addU32(mHal.state.vertexBuffersCount);
	for (uint32_t vCount = 0; vCount < mHal.state.vertexBuffersCount; vCount ++) {
	mHal.state.vertexBuffers[vCount]->serialize(rsc, stream);
	}

	stream->addU32(mHal.state.primitivesCount);
	// Store the primitives
	for (uint32_t pCount = 0; pCount < mHal.state.primitivesCount; pCount ++) {
	stream->addU8((uint8_t)mHal.state.primitives[pCount]);

	if (mHal.state.indexBuffers[pCount]) {
	stream->addU32(1);
	mHal.state.indexBuffers[pCount]->serialize(rsc, stream);
	} else {
	stream->addU32(0);
	}
	}
	}

	Mesh Mesh::createFromStream(Context rsc, IStream *stream) {
	// First make sure we are reading the correct object
	RsA3DClassID classID = (RsA3DClassID)stream->loadU32();
	if (classID != RS_A3D_CLASS_ID_MESH) {
	ALOGE("mesh loading skipped due to invalid class id");
	return nullptr;
	}

	const char *name = stream->loadString();

	uint32_t vertexBuffersCount = stream->loadU32();
	ObjectBaseRef<Allocation> *vertexBuffers = nullptr;
	if (vertexBuffersCount) {
	vertexBuffers = new ObjectBaseRef<Allocation>[vertexBuffersCount];

	for (uint32_t vCount = 0; vCount < vertexBuffersCount; vCount ++) {
	Allocation *vertexAlloc = Allocation::createFromStream(rsc, stream);
	vertexBuffers[vCount].set(vertexAlloc);
	}
	}

	uint32_t primitivesCount = stream->loadU32();
	ObjectBaseRef<Allocation> *indexBuffers = nullptr;
	RsPrimitive *primitives = nullptr;
	if (primitivesCount) {
	indexBuffers = new ObjectBaseRef<Allocation>[primitivesCount];
	primitives = new RsPrimitive[primitivesCount];

	// load all primitives
	for (uint32_t pCount = 0; pCount < primitivesCount; pCount ++) {
	primitives[pCount] = (RsPrimitive)stream->loadU8();

	// Check to see if the index buffer was stored
	uint32_t isIndexPresent = stream->loadU32();
	if (isIndexPresent) {
	Allocation *indexAlloc = Allocation::createFromStream(rsc, stream);
	indexBuffers[pCount].set(indexAlloc);
	}
	}
	}

	Mesh *mesh = new Mesh(rsc, vertexBuffersCount, primitivesCount);
	mesh->assignName(name);
	for (uint32_t vCount = 0; vCount < vertexBuffersCount; vCount ++) {
	mesh->setVertexBuffer(vertexBuffers[vCount].get(), vCount);
	}
	for (uint32_t pCount = 0; pCount < primitivesCount; pCount ++) {
	mesh->setPrimitive(indexBuffers[pCount].get(), primitives[pCount], pCount);
	}

	// Cleanup
	if (vertexBuffersCount) {
	delete[] vertexBuffers;
	}
	if (primitivesCount) {
	delete[] indexBuffers;
	delete[] primitives;
	}

	#ifndef ANDROID_RS_SERIALIZE
	mesh->init();
	mesh->uploadAll(rsc);
	#endif
	return mesh;
	}

	void Mesh::render(Context *rsc) const {
	for (uint32_t ct = 0; ct < mHal.state.primitivesCount; ct ++) {
	renderPrimitive(rsc, ct);
	}
	}

	void Mesh::renderPrimitive(Context *rsc, uint32_t primIndex) const {
	if (primIndex >= mHal.state.primitivesCount) {
	ALOGE("Invalid primitive index");
	return;
	}

	if (mHal.state.indexBuffers[primIndex]) {
	renderPrimitiveRange(rsc, primIndex, 0, mHal.state.indexBuffers[primIndex]->getType()->getDimX());
	return;
	}

	renderPrimitiveRange(rsc, primIndex, 0, mHal.state.vertexBuffers[0]->getType()->getDimX());
	}

	void Mesh::renderPrimitiveRange(Context *rsc, uint32_t primIndex, uint32_t start, uint32_t len) const {
	if (len < 1 \|\| primIndex >= mHal.state.primitivesCount) {
	ALOGE("Invalid mesh or parameters");
	return;
	}

	mRSC->mHal.funcs.mesh.draw(mRSC, this, primIndex, start, len);
	}

	void Mesh::uploadAll(Context *rsc) {
	for (uint32_t ct = 0; ct < mHal.state.vertexBuffersCount; ct ++) {
	if (mHal.state.vertexBuffers[ct]) {
	rsc->mHal.funcs.allocation.markDirty(rsc, mHal.state.vertexBuffers[ct]);
	}
	}

	for (uint32_t ct = 0; ct < mHal.state.primitivesCount; ct ++) {
	if (mHal.state.indexBuffers[ct]) {
	rsc->mHal.funcs.allocation.markDirty(rsc, mHal.state.indexBuffers[ct]);
	}
	}
	}

	void Mesh::computeBBox(Context *rsc) {
	float *posPtr = nullptr;
	uint32_t vectorSize = 0;
	uint32_t stride = 0;
	uint32_t numVerts = 0;
	Allocation *posAlloc = nullptr;
	// First we need to find the position ptr and stride
	for (uint32_t ct=0; ct < mHal.state.vertexBuffersCount; ct++) {
	const Type *bufferType = mHal.state.vertexBuffers[ct]->getType();
	const Element *bufferElem = bufferType->getElement();

	for (uint32_t ct=0; ct < bufferElem->getFieldCount(); ct++) {
	if (strcmp(bufferElem->getFieldName(ct), "position") == 0) {
	vectorSize = bufferElem->getField(ct)->getComponent().getVectorSize();
	stride = bufferElem->getSizeBytes() / sizeof(float);
	uint32_t offset = bufferElem->getFieldOffsetBytes(ct);
	posAlloc = mHal.state.vertexBuffers[ct];
	const uint8_t bp = (const uint8_t )rsc->mHal.funcs.allocation.lock1D(
	rsc, posAlloc);
	posPtr = (float*)(bp + offset);
	numVerts = bufferType->getDimX();
	break;
	}
	}
	if (posPtr) {
	break;
	}
	}

	mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 1e6;
	mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = -1e6;
	if (!posPtr) {
	ALOGE("Unable to compute bounding box");
	mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 0.0f;
	mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = 0.0f;
	return;
	}

	for (uint32_t i = 0; i < numVerts; i ++) {
	for (uint32_t v = 0; v < vectorSize; v ++) {
	mBBoxMin[v] = rsMin(mBBoxMin[v], posPtr[v]);
	mBBoxMax[v] = rsMax(mBBoxMax[v], posPtr[v]);
	}
	posPtr += stride;
	}

	if (posAlloc) {
	rsc->mHal.funcs.allocation.unlock1D(rsc, posAlloc);
	}
	}

	namespace android {
	namespace renderscript {

	RsMesh rsi_MeshCreate(Context *rsc,
	RsAllocation * vtx, size_t vtxCount,
	RsAllocation * idx, size_t idxCount,
	uint32_t * primType, size_t primTypeCount) {
	rsAssert(idxCount == primTypeCount);
	Mesh *sm = new Mesh(rsc, vtxCount, idxCount);
	sm->incUserRef();

	for (uint32_t i = 0; i < vtxCount; i ++) {
	sm->setVertexBuffer((Allocation*)vtx[i], i);
	}

	for (uint32_t i = 0; i < idxCount; i ++) {
	sm->setPrimitive((Allocation*)idx[i], (RsPrimitive)primType[i], i);
	}

	sm->init();

	return sm;
	}

	}}

	void rsaMeshGetVertexBufferCount(RsContext con, RsMesh mv, int32_t *numVtx) {
	Mesh sm = static_cast<Mesh >(mv);
	*numVtx = sm->mHal.state.vertexBuffersCount;
	}

	void rsaMeshGetIndexCount(RsContext con, RsMesh mv, int32_t *numIdx) {
	Mesh sm = static_cast<Mesh >(mv);
	*numIdx = sm->mHal.state.primitivesCount;
	}

	void rsaMeshGetVertices(RsContext con, RsMesh mv, RsAllocation *vtxData, uint32_t vtxDataCount) {
	Mesh sm = static_cast<Mesh >(mv);
	rsAssert(vtxDataCount == sm->mHal.state.vertexBuffersCount);

	for (uint32_t ct = 0; ct < vtxDataCount; ct ++) {
	vtxData[ct] = sm->mHal.state.vertexBuffers[ct];
	sm->mHal.state.vertexBuffers[ct]->incUserRef();
	}
	}

	void rsaMeshGetIndices(RsContext con, RsMesh mv, RsAllocation va, uint32_t primType, uint32_t idxDataCount) {
	Mesh sm = static_cast<Mesh >(mv);
	rsAssert(idxDataCount == sm->mHal.state.primitivesCount);

	for (uint32_t ct = 0; ct < idxDataCount; ct ++) {
	va[ct] = sm->mHal.state.indexBuffers[ct];
	primType[ct] = sm->mHal.state.primitives[ct];
	if (sm->mHal.state.indexBuffers[ct]) {
	sm->mHal.state.indexBuffers[ct]->incUserRef();
	}
	}
	}