1 /*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "rsContext.h"
18 #include "rsMesh.h"
19 #include "rs.h"
20
21 using namespace android;
22 using namespace android::renderscript;
23
Mesh(Context * rsc)24 Mesh::Mesh(Context *rsc) : ObjectBase(rsc) {
25 mHal.drv = NULL;
26 mHal.state.primitives = NULL;
27 mHal.state.primitivesCount = 0;
28 mHal.state.indexBuffers = NULL;
29 mHal.state.indexBuffersCount = 0;
30 mHal.state.vertexBuffers = NULL;
31 mHal.state.vertexBuffersCount = 0;
32 mInitialized = false;
33
34 mVertexBuffers = NULL;
35 mIndexBuffers = NULL;
36 }
37
Mesh(Context * rsc,uint32_t vertexBuffersCount,uint32_t primitivesCount)38 Mesh::Mesh(Context *rsc,
39 uint32_t vertexBuffersCount,
40 uint32_t primitivesCount) : ObjectBase(rsc) {
41 mHal.drv = NULL;
42 mHal.state.primitivesCount = primitivesCount;
43 mHal.state.indexBuffersCount = primitivesCount;
44 mHal.state.primitives = new RsPrimitive[mHal.state.primitivesCount];
45 mHal.state.indexBuffers = new Allocation *[mHal.state.indexBuffersCount];
46 for (uint32_t i = 0; i < mHal.state.primitivesCount; i ++) {
47 mHal.state.primitives[i] = RS_PRIMITIVE_POINT;
48 }
49 for (uint32_t i = 0; i < mHal.state.indexBuffersCount; i ++) {
50 mHal.state.indexBuffers[i] = NULL;
51 }
52 mHal.state.vertexBuffersCount = vertexBuffersCount;
53 mHal.state.vertexBuffers = new Allocation *[mHal.state.vertexBuffersCount];
54 for (uint32_t i = 0; i < mHal.state.vertexBuffersCount; i ++) {
55 mHal.state.vertexBuffers[i] = NULL;
56 }
57
58 mVertexBuffers = new ObjectBaseRef<Allocation>[mHal.state.vertexBuffersCount];
59 mIndexBuffers = new ObjectBaseRef<Allocation>[mHal.state.primitivesCount];
60 }
61
~Mesh()62 Mesh::~Mesh() {
63 #ifndef ANDROID_RS_SERIALIZE
64 mRSC->mHal.funcs.mesh.destroy(mRSC, this);
65 #endif
66
67 delete[] mHal.state.vertexBuffers;
68 delete[] mHal.state.primitives;
69 delete[] mHal.state.indexBuffers;
70
71 delete[] mVertexBuffers;
72 delete[] mIndexBuffers;
73 }
74
init()75 void Mesh::init() {
76 #ifndef ANDROID_RS_SERIALIZE
77 mRSC->mHal.funcs.mesh.init(mRSC, this);
78 #endif
79 }
80
serialize(Context * rsc,OStream * stream) const81 void Mesh::serialize(Context *rsc, OStream *stream) const {
82 // Need to identify ourselves
83 stream->addU32((uint32_t)getClassId());
84
85 String8 name(getName());
86 stream->addString(&name);
87
88 // Store number of vertex streams
89 stream->addU32(mHal.state.vertexBuffersCount);
90 for (uint32_t vCount = 0; vCount < mHal.state.vertexBuffersCount; vCount ++) {
91 mHal.state.vertexBuffers[vCount]->serialize(rsc, stream);
92 }
93
94 stream->addU32(mHal.state.primitivesCount);
95 // Store the primitives
96 for (uint32_t pCount = 0; pCount < mHal.state.primitivesCount; pCount ++) {
97 stream->addU8((uint8_t)mHal.state.primitives[pCount]);
98
99 if (mHal.state.indexBuffers[pCount]) {
100 stream->addU32(1);
101 mHal.state.indexBuffers[pCount]->serialize(rsc, stream);
102 } else {
103 stream->addU32(0);
104 }
105 }
106 }
107
createFromStream(Context * rsc,IStream * stream)108 Mesh *Mesh::createFromStream(Context *rsc, IStream *stream) {
109 // First make sure we are reading the correct object
110 RsA3DClassID classID = (RsA3DClassID)stream->loadU32();
111 if (classID != RS_A3D_CLASS_ID_MESH) {
112 ALOGE("mesh loading skipped due to invalid class id");
113 return NULL;
114 }
115
116 String8 name;
117 stream->loadString(&name);
118
119 uint32_t vertexBuffersCount = stream->loadU32();
120 ObjectBaseRef<Allocation> *vertexBuffers = NULL;
121 if (vertexBuffersCount) {
122 vertexBuffers = new ObjectBaseRef<Allocation>[vertexBuffersCount];
123
124 for (uint32_t vCount = 0; vCount < vertexBuffersCount; vCount ++) {
125 Allocation *vertexAlloc = Allocation::createFromStream(rsc, stream);
126 vertexBuffers[vCount].set(vertexAlloc);
127 }
128 }
129
130 uint32_t primitivesCount = stream->loadU32();
131 ObjectBaseRef<Allocation> *indexBuffers = NULL;
132 RsPrimitive *primitives = NULL;
133 if (primitivesCount) {
134 indexBuffers = new ObjectBaseRef<Allocation>[primitivesCount];
135 primitives = new RsPrimitive[primitivesCount];
136
137 // load all primitives
138 for (uint32_t pCount = 0; pCount < primitivesCount; pCount ++) {
139 primitives[pCount] = (RsPrimitive)stream->loadU8();
140
141 // Check to see if the index buffer was stored
142 uint32_t isIndexPresent = stream->loadU32();
143 if (isIndexPresent) {
144 Allocation *indexAlloc = Allocation::createFromStream(rsc, stream);
145 indexBuffers[pCount].set(indexAlloc);
146 }
147 }
148 }
149
150 Mesh *mesh = new Mesh(rsc, vertexBuffersCount, primitivesCount);
151 mesh->setName(name.string(), name.size());
152 for (uint32_t vCount = 0; vCount < vertexBuffersCount; vCount ++) {
153 mesh->setVertexBuffer(vertexBuffers[vCount].get(), vCount);
154 }
155 for (uint32_t pCount = 0; pCount < primitivesCount; pCount ++) {
156 mesh->setPrimitive(indexBuffers[pCount].get(), primitives[pCount], pCount);
157 }
158
159 // Cleanup
160 if (vertexBuffersCount) {
161 delete[] vertexBuffers;
162 }
163 if (primitivesCount) {
164 delete[] indexBuffers;
165 delete[] primitives;
166 }
167
168 #ifndef ANDROID_RS_SERIALIZE
169 mesh->init();
170 mesh->uploadAll(rsc);
171 #endif
172 return mesh;
173 }
174
render(Context * rsc) const175 void Mesh::render(Context *rsc) const {
176 for (uint32_t ct = 0; ct < mHal.state.primitivesCount; ct ++) {
177 renderPrimitive(rsc, ct);
178 }
179 }
180
renderPrimitive(Context * rsc,uint32_t primIndex) const181 void Mesh::renderPrimitive(Context *rsc, uint32_t primIndex) const {
182 if (primIndex >= mHal.state.primitivesCount) {
183 ALOGE("Invalid primitive index");
184 return;
185 }
186
187 if (mHal.state.indexBuffers[primIndex]) {
188 renderPrimitiveRange(rsc, primIndex, 0, mHal.state.indexBuffers[primIndex]->getType()->getDimX());
189 return;
190 }
191
192 renderPrimitiveRange(rsc, primIndex, 0, mHal.state.vertexBuffers[0]->getType()->getDimX());
193 }
194
renderPrimitiveRange(Context * rsc,uint32_t primIndex,uint32_t start,uint32_t len) const195 void Mesh::renderPrimitiveRange(Context *rsc, uint32_t primIndex, uint32_t start, uint32_t len) const {
196 if (len < 1 || primIndex >= mHal.state.primitivesCount) {
197 ALOGE("Invalid mesh or parameters");
198 return;
199 }
200
201 mRSC->mHal.funcs.mesh.draw(mRSC, this, primIndex, start, len);
202 }
203
uploadAll(Context * rsc)204 void Mesh::uploadAll(Context *rsc) {
205 for (uint32_t ct = 0; ct < mHal.state.vertexBuffersCount; ct ++) {
206 if (mHal.state.vertexBuffers[ct]) {
207 rsc->mHal.funcs.allocation.markDirty(rsc, mHal.state.vertexBuffers[ct]);
208 }
209 }
210
211 for (uint32_t ct = 0; ct < mHal.state.primitivesCount; ct ++) {
212 if (mHal.state.indexBuffers[ct]) {
213 rsc->mHal.funcs.allocation.markDirty(rsc, mHal.state.indexBuffers[ct]);
214 }
215 }
216 }
217
computeBBox(Context * rsc)218 void Mesh::computeBBox(Context *rsc) {
219 float *posPtr = NULL;
220 uint32_t vectorSize = 0;
221 uint32_t stride = 0;
222 uint32_t numVerts = 0;
223 Allocation *posAlloc = NULL;
224 // First we need to find the position ptr and stride
225 for (uint32_t ct=0; ct < mHal.state.vertexBuffersCount; ct++) {
226 const Type *bufferType = mHal.state.vertexBuffers[ct]->getType();
227 const Element *bufferElem = bufferType->getElement();
228
229 for (uint32_t ct=0; ct < bufferElem->getFieldCount(); ct++) {
230 if (strcmp(bufferElem->getFieldName(ct), "position") == 0) {
231 vectorSize = bufferElem->getField(ct)->getComponent().getVectorSize();
232 stride = bufferElem->getSizeBytes() / sizeof(float);
233 uint32_t offset = bufferElem->getFieldOffsetBytes(ct);
234 posAlloc = mHal.state.vertexBuffers[ct];
235 const uint8_t *bp = (const uint8_t *)rsc->mHal.funcs.allocation.lock1D(
236 rsc, posAlloc);
237 posPtr = (float*)(bp + offset);
238 numVerts = bufferType->getDimX();
239 break;
240 }
241 }
242 if (posPtr) {
243 break;
244 }
245 }
246
247 mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 1e6;
248 mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = -1e6;
249 if (!posPtr) {
250 ALOGE("Unable to compute bounding box");
251 mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 0.0f;
252 mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = 0.0f;
253 return;
254 }
255
256 for (uint32_t i = 0; i < numVerts; i ++) {
257 for (uint32_t v = 0; v < vectorSize; v ++) {
258 mBBoxMin[v] = rsMin(mBBoxMin[v], posPtr[v]);
259 mBBoxMax[v] = rsMax(mBBoxMax[v], posPtr[v]);
260 }
261 posPtr += stride;
262 }
263
264 if (posAlloc) {
265 rsc->mHal.funcs.allocation.unlock1D(rsc, posAlloc);
266 }
267 }
268
269 namespace android {
270 namespace renderscript {
271
rsi_MeshCreate(Context * rsc,RsAllocation * vtx,size_t vtxCount,RsAllocation * idx,size_t idxCount,uint32_t * primType,size_t primTypeCount)272 RsMesh rsi_MeshCreate(Context *rsc,
273 RsAllocation * vtx, size_t vtxCount,
274 RsAllocation * idx, size_t idxCount,
275 uint32_t * primType, size_t primTypeCount) {
276 rsAssert(idxCount == primTypeCount);
277 Mesh *sm = new Mesh(rsc, vtxCount, idxCount);
278 sm->incUserRef();
279
280 for (uint32_t i = 0; i < vtxCount; i ++) {
281 sm->setVertexBuffer((Allocation*)vtx[i], i);
282 }
283
284 for (uint32_t i = 0; i < idxCount; i ++) {
285 sm->setPrimitive((Allocation*)idx[i], (RsPrimitive)primType[i], i);
286 }
287
288 sm->init();
289
290 return sm;
291 }
292
293 }}
294
rsaMeshGetVertexBufferCount(RsContext con,RsMesh mv,int32_t * numVtx)295 void rsaMeshGetVertexBufferCount(RsContext con, RsMesh mv, int32_t *numVtx) {
296 Mesh *sm = static_cast<Mesh *>(mv);
297 *numVtx = sm->mHal.state.vertexBuffersCount;
298 }
299
rsaMeshGetIndexCount(RsContext con,RsMesh mv,int32_t * numIdx)300 void rsaMeshGetIndexCount(RsContext con, RsMesh mv, int32_t *numIdx) {
301 Mesh *sm = static_cast<Mesh *>(mv);
302 *numIdx = sm->mHal.state.primitivesCount;
303 }
304
rsaMeshGetVertices(RsContext con,RsMesh mv,RsAllocation * vtxData,uint32_t vtxDataCount)305 void rsaMeshGetVertices(RsContext con, RsMesh mv, RsAllocation *vtxData, uint32_t vtxDataCount) {
306 Mesh *sm = static_cast<Mesh *>(mv);
307 rsAssert(vtxDataCount == sm->mHal.state.vertexBuffersCount);
308
309 for (uint32_t ct = 0; ct < vtxDataCount; ct ++) {
310 vtxData[ct] = sm->mHal.state.vertexBuffers[ct];
311 sm->mHal.state.vertexBuffers[ct]->incUserRef();
312 }
313 }
314
rsaMeshGetIndices(RsContext con,RsMesh mv,RsAllocation * va,uint32_t * primType,uint32_t idxDataCount)315 void rsaMeshGetIndices(RsContext con, RsMesh mv, RsAllocation *va, uint32_t *primType, uint32_t idxDataCount) {
316 Mesh *sm = static_cast<Mesh *>(mv);
317 rsAssert(idxDataCount == sm->mHal.state.primitivesCount);
318
319 for (uint32_t ct = 0; ct < idxDataCount; ct ++) {
320 va[ct] = sm->mHal.state.indexBuffers[ct];
321 primType[ct] = sm->mHal.state.primitives[ct];
322 if (sm->mHal.state.indexBuffers[ct]) {
323 sm->mHal.state.indexBuffers[ct]->incUserRef();
324 }
325 }
326 }
327