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(OStream * stream) const81 void Mesh::serialize(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(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(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()218 void Mesh::computeBBox() {
219 float *posPtr = NULL;
220 uint32_t vectorSize = 0;
221 uint32_t stride = 0;
222 uint32_t numVerts = 0;
223 // First we need to find the position ptr and stride
224 for (uint32_t ct=0; ct < mHal.state.vertexBuffersCount; ct++) {
225 const Type *bufferType = mHal.state.vertexBuffers[ct]->getType();
226 const Element *bufferElem = bufferType->getElement();
227
228 for (uint32_t ct=0; ct < bufferElem->getFieldCount(); ct++) {
229 if (strcmp(bufferElem->getFieldName(ct), "position") == 0) {
230 vectorSize = bufferElem->getField(ct)->getComponent().getVectorSize();
231 stride = bufferElem->getSizeBytes() / sizeof(float);
232 uint32_t offset = bufferElem->getFieldOffsetBytes(ct);
233 posPtr = (float*)((uint8_t*)mHal.state.vertexBuffers[ct]->getPtr() + offset);
234 numVerts = bufferType->getDimX();
235 break;
236 }
237 }
238 if (posPtr) {
239 break;
240 }
241 }
242
243 mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 1e6;
244 mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = -1e6;
245 if (!posPtr) {
246 ALOGE("Unable to compute bounding box");
247 mBBoxMin[0] = mBBoxMin[1] = mBBoxMin[2] = 0.0f;
248 mBBoxMax[0] = mBBoxMax[1] = mBBoxMax[2] = 0.0f;
249 return;
250 }
251
252 for (uint32_t i = 0; i < numVerts; i ++) {
253 for (uint32_t v = 0; v < vectorSize; v ++) {
254 mBBoxMin[v] = rsMin(mBBoxMin[v], posPtr[v]);
255 mBBoxMax[v] = rsMax(mBBoxMax[v], posPtr[v]);
256 }
257 posPtr += stride;
258 }
259 }
260
261 namespace android {
262 namespace renderscript {
263
rsi_MeshCreate(Context * rsc,RsAllocation * vtx,size_t vtxCount,RsAllocation * idx,size_t idxCount,uint32_t * primType,size_t primTypeCount)264 RsMesh rsi_MeshCreate(Context *rsc,
265 RsAllocation * vtx, size_t vtxCount,
266 RsAllocation * idx, size_t idxCount,
267 uint32_t * primType, size_t primTypeCount) {
268 rsAssert(idxCount == primTypeCount);
269 Mesh *sm = new Mesh(rsc, vtxCount, idxCount);
270 sm->incUserRef();
271
272 for (uint32_t i = 0; i < vtxCount; i ++) {
273 sm->setVertexBuffer((Allocation*)vtx[i], i);
274 }
275
276 for (uint32_t i = 0; i < idxCount; i ++) {
277 sm->setPrimitive((Allocation*)idx[i], (RsPrimitive)primType[i], i);
278 }
279
280 sm->init();
281
282 return sm;
283 }
284
285 }}
286
rsaMeshGetVertexBufferCount(RsContext con,RsMesh mv,int32_t * numVtx)287 void rsaMeshGetVertexBufferCount(RsContext con, RsMesh mv, int32_t *numVtx) {
288 Mesh *sm = static_cast<Mesh *>(mv);
289 *numVtx = sm->mHal.state.vertexBuffersCount;
290 }
291
rsaMeshGetIndexCount(RsContext con,RsMesh mv,int32_t * numIdx)292 void rsaMeshGetIndexCount(RsContext con, RsMesh mv, int32_t *numIdx) {
293 Mesh *sm = static_cast<Mesh *>(mv);
294 *numIdx = sm->mHal.state.primitivesCount;
295 }
296
rsaMeshGetVertices(RsContext con,RsMesh mv,RsAllocation * vtxData,uint32_t vtxDataCount)297 void rsaMeshGetVertices(RsContext con, RsMesh mv, RsAllocation *vtxData, uint32_t vtxDataCount) {
298 Mesh *sm = static_cast<Mesh *>(mv);
299 rsAssert(vtxDataCount == sm->mHal.state.vertexBuffersCount);
300
301 for (uint32_t ct = 0; ct < vtxDataCount; ct ++) {
302 vtxData[ct] = sm->mHal.state.vertexBuffers[ct];
303 sm->mHal.state.vertexBuffers[ct]->incUserRef();
304 }
305 }
306
rsaMeshGetIndices(RsContext con,RsMesh mv,RsAllocation * va,uint32_t * primType,uint32_t idxDataCount)307 void rsaMeshGetIndices(RsContext con, RsMesh mv, RsAllocation *va, uint32_t *primType, uint32_t idxDataCount) {
308 Mesh *sm = static_cast<Mesh *>(mv);
309 rsAssert(idxDataCount == sm->mHal.state.primitivesCount);
310
311 for (uint32_t ct = 0; ct < idxDataCount; ct ++) {
312 va[ct] = sm->mHal.state.indexBuffers[ct];
313 primType[ct] = sm->mHal.state.primitives[ct];
314 if (sm->mHal.state.indexBuffers[ct]) {
315 sm->mHal.state.indexBuffers[ct]->incUserRef();
316 }
317 }
318 }
319