1/*
2 * Copyright (C) 2009 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
18#include "rsContext.h"
19
20using namespace android;
21using namespace android::renderscript;
22
23
24Element::Element(Context *rsc) : ObjectBase(rsc) {
25    mBits = 0;
26    mBitsUnpadded = 0;
27    mFields = NULL;
28    mFieldCount = 0;
29    mHasReference = false;
30    memset(&mHal, 0, sizeof(mHal));
31}
32
33Element::~Element() {
34    clear();
35}
36
37void Element::preDestroy() const {
38    for (uint32_t ct = 0; ct < mRSC->mStateElement.mElements.size(); ct++) {
39        if (mRSC->mStateElement.mElements[ct] == this) {
40            mRSC->mStateElement.mElements.removeAt(ct);
41            break;
42        }
43    }
44}
45
46void Element::clear() {
47    delete [] mFields;
48    mFields = NULL;
49    mFieldCount = 0;
50    mHasReference = false;
51
52    delete [] mHal.state.fields;
53    delete [] mHal.state.fieldArraySizes;
54    delete [] mHal.state.fieldNames;
55    delete [] mHal.state.fieldNameLengths;
56    delete [] mHal.state.fieldOffsetBytes;
57}
58
59size_t Element::getSizeBits() const {
60    if (!mFieldCount) {
61        return mBits;
62    }
63
64    size_t total = 0;
65    for (size_t ct=0; ct < mFieldCount; ct++) {
66        total += mFields[ct].e->mBits * mFields[ct].arraySize;
67    }
68    return total;
69}
70
71size_t Element::getSizeBitsUnpadded() const {
72    if (!mFieldCount) {
73        return mBitsUnpadded;
74    }
75
76    size_t total = 0;
77    for (size_t ct=0; ct < mFieldCount; ct++) {
78        total += mFields[ct].e->mBitsUnpadded * mFields[ct].arraySize;
79    }
80    return total;
81}
82
83void Element::dumpLOGV(const char *prefix) const {
84    ObjectBase::dumpLOGV(prefix);
85    ALOGV("%s Element: fieldCount: %zu,  size bytes: %zu", prefix, mFieldCount, getSizeBytes());
86    mComponent.dumpLOGV(prefix);
87    for (uint32_t ct = 0; ct < mFieldCount; ct++) {
88        ALOGV("%s Element field index: %u ------------------", prefix, ct);
89        ALOGV("%s name: %s, offsetBits: %u, arraySize: %u",
90             prefix, mFields[ct].name.string(), mFields[ct].offsetBits, mFields[ct].arraySize);
91        mFields[ct].e->dumpLOGV(prefix);
92    }
93}
94
95void Element::serialize(OStream *stream) const {
96    // Need to identify ourselves
97    stream->addU32((uint32_t)getClassId());
98
99    String8 name(getName());
100    stream->addString(&name);
101
102    mComponent.serialize(stream);
103
104    // Now serialize all the fields
105    stream->addU32(mFieldCount);
106    for (uint32_t ct = 0; ct < mFieldCount; ct++) {
107        stream->addString(&mFields[ct].name);
108        stream->addU32(mFields[ct].arraySize);
109        mFields[ct].e->serialize(stream);
110    }
111}
112
113Element *Element::createFromStream(Context *rsc, IStream *stream) {
114    // First make sure we are reading the correct object
115    RsA3DClassID classID = (RsA3DClassID)stream->loadU32();
116    if (classID != RS_A3D_CLASS_ID_ELEMENT) {
117        ALOGE("element loading skipped due to invalid class id\n");
118        return NULL;
119    }
120
121    String8 name;
122    stream->loadString(&name);
123
124    Component component;
125    component.loadFromStream(stream);
126
127    uint32_t fieldCount = stream->loadU32();
128    if (!fieldCount) {
129        return (Element *)Element::create(rsc,
130                                          component.getType(),
131                                          component.getKind(),
132                                          component.getIsNormalized(),
133                                          component.getVectorSize());;
134    }
135
136    const Element **subElems = new const Element *[fieldCount];
137    const char **subElemNames = new const char *[fieldCount];
138    size_t *subElemNamesLengths = new size_t[fieldCount];
139    uint32_t *arraySizes = new uint32_t[fieldCount];
140
141    String8 elemName;
142    for (uint32_t ct = 0; ct < fieldCount; ct ++) {
143        stream->loadString(&elemName);
144        subElemNamesLengths[ct] = elemName.length();
145        char *tmpName = new char[subElemNamesLengths[ct]];
146        memcpy(tmpName, elemName.string(), subElemNamesLengths[ct]);
147        subElemNames[ct] = tmpName;
148        arraySizes[ct] = stream->loadU32();
149        subElems[ct] = Element::createFromStream(rsc, stream);
150    }
151
152    const Element *elem = Element::create(rsc, fieldCount, subElems, subElemNames,
153                                          subElemNamesLengths, arraySizes);
154    for (uint32_t ct = 0; ct < fieldCount; ct ++) {
155        delete [] subElemNames[ct];
156        subElems[ct]->decUserRef();
157    }
158    delete[] subElems;
159    delete[] subElemNames;
160    delete[] subElemNamesLengths;
161    delete[] arraySizes;
162
163    return (Element *)elem;
164}
165
166void Element::compute() {
167    mHal.state.dataType = mComponent.getType();
168    mHal.state.dataKind = mComponent.getKind();
169    mHal.state.vectorSize = mComponent.getVectorSize();
170
171    if (mFieldCount == 0) {
172        mBits = mComponent.getBits();
173        mBitsUnpadded = mComponent.getBitsUnpadded();
174        mHasReference = mComponent.isReference();
175
176        mHal.state.elementSizeBytes = getSizeBytes();
177        return;
178    }
179
180    uint32_t noPaddingFieldCount = 0;
181    for (uint32_t ct = 0; ct < mFieldCount; ct ++) {
182        if (mFields[ct].name.string()[0] != '#') {
183            noPaddingFieldCount ++;
184        }
185    }
186
187    mHal.state.fields = new const Element*[noPaddingFieldCount];
188    mHal.state.fieldArraySizes = new uint32_t[noPaddingFieldCount];
189    mHal.state.fieldNames = new const char*[noPaddingFieldCount];
190    mHal.state.fieldNameLengths = new uint32_t[noPaddingFieldCount];
191    mHal.state.fieldOffsetBytes = new uint32_t[noPaddingFieldCount];
192    mHal.state.fieldsCount = noPaddingFieldCount;
193
194    size_t bits = 0;
195    size_t bitsUnpadded = 0;
196    for (size_t ct = 0, ctNoPadding = 0; ct < mFieldCount; ct++) {
197        mFields[ct].offsetBits = bits;
198        mFields[ct].offsetBitsUnpadded = bitsUnpadded;
199        bits += mFields[ct].e->getSizeBits() * mFields[ct].arraySize;
200        bitsUnpadded += mFields[ct].e->getSizeBitsUnpadded() * mFields[ct].arraySize;
201
202        if (mFields[ct].e->mHasReference) {
203            mHasReference = true;
204        }
205
206        if (mFields[ct].name.string()[0] == '#') {
207            continue;
208        }
209
210        mHal.state.fields[ctNoPadding] = mFields[ct].e.get();
211        mHal.state.fieldArraySizes[ctNoPadding] = mFields[ct].arraySize;
212        mHal.state.fieldNames[ctNoPadding] = mFields[ct].name.string();
213        mHal.state.fieldNameLengths[ctNoPadding] = mFields[ct].name.length() + 1; // to include 0
214        mHal.state.fieldOffsetBytes[ctNoPadding] = mFields[ct].offsetBits >> 3;
215
216        ctNoPadding ++;
217    }
218
219    mHal.state.elementSizeBytes = getSizeBytes();
220}
221
222ObjectBaseRef<const Element> Element::createRef(Context *rsc, RsDataType dt, RsDataKind dk,
223                                bool isNorm, uint32_t vecSize) {
224    ObjectBaseRef<const Element> returnRef;
225    // Look for an existing match.
226    ObjectBase::asyncLock();
227    for (uint32_t ct=0; ct < rsc->mStateElement.mElements.size(); ct++) {
228        const Element *ee = rsc->mStateElement.mElements[ct];
229        if (!ee->getFieldCount() &&
230            (ee->getComponent().getType() == dt) &&
231            (ee->getComponent().getKind() == dk) &&
232            (ee->getComponent().getIsNormalized() == isNorm) &&
233            (ee->getComponent().getVectorSize() == vecSize)) {
234            // Match
235            returnRef.set(ee);
236            ObjectBase::asyncUnlock();
237            return ee;
238        }
239    }
240    ObjectBase::asyncUnlock();
241
242    Element *e = new Element(rsc);
243    returnRef.set(e);
244    e->mComponent.set(dt, dk, isNorm, vecSize);
245    e->compute();
246
247    ObjectBase::asyncLock();
248    rsc->mStateElement.mElements.push(e);
249    ObjectBase::asyncUnlock();
250
251    return returnRef;
252}
253
254ObjectBaseRef<const Element> Element::createRef(Context *rsc, size_t count, const Element **ein,
255                            const char **nin, const size_t * lengths, const uint32_t *asin) {
256
257    ObjectBaseRef<const Element> returnRef;
258    // Look for an existing match.
259    ObjectBase::asyncLock();
260    for (uint32_t ct=0; ct < rsc->mStateElement.mElements.size(); ct++) {
261        const Element *ee = rsc->mStateElement.mElements[ct];
262        if (ee->getFieldCount() == count) {
263            bool match = true;
264            for (uint32_t i=0; i < count; i++) {
265                if ((ee->mFields[i].e.get() != ein[i]) ||
266                    (ee->mFields[i].name.length() != lengths[i]) ||
267                    (ee->mFields[i].name != nin[i]) ||
268                    (ee->mFields[i].arraySize != asin[i])) {
269                    match = false;
270                    break;
271                }
272            }
273            if (match) {
274                returnRef.set(ee);
275                ObjectBase::asyncUnlock();
276                return returnRef;
277            }
278        }
279    }
280    ObjectBase::asyncUnlock();
281
282    Element *e = new Element(rsc);
283    returnRef.set(e);
284    e->mFields = new ElementField_t [count];
285    e->mFieldCount = count;
286    for (size_t ct=0; ct < count; ct++) {
287        e->mFields[ct].e.set(ein[ct]);
288        e->mFields[ct].name.setTo(nin[ct], lengths[ct]);
289        e->mFields[ct].arraySize = asin[ct];
290    }
291    e->compute();
292
293    ObjectBase::asyncLock();
294    rsc->mStateElement.mElements.push(e);
295    ObjectBase::asyncUnlock();
296
297    return returnRef;
298}
299
300void Element::incRefs(const void *ptr) const {
301    if (!mFieldCount) {
302        if (mComponent.isReference()) {
303            ObjectBase *const*obp = static_cast<ObjectBase *const*>(ptr);
304            ObjectBase *ob = obp[0];
305            if (ob) ob->incSysRef();
306        }
307        return;
308    }
309
310    const uint8_t *p = static_cast<const uint8_t *>(ptr);
311    for (uint32_t i=0; i < mFieldCount; i++) {
312        if (mFields[i].e->mHasReference) {
313            const uint8_t *p2 = &p[mFields[i].offsetBits >> 3];
314            for (uint32_t ct=0; ct < mFields[i].arraySize; ct++) {
315                mFields[i].e->incRefs(p2);
316                p2 += mFields[i].e->getSizeBytes();
317            }
318        }
319    }
320}
321
322void Element::decRefs(const void *ptr) const {
323    if (!mFieldCount) {
324        if (mComponent.isReference()) {
325            ObjectBase *const*obp = static_cast<ObjectBase *const*>(ptr);
326            ObjectBase *ob = obp[0];
327            if (ob) ob->decSysRef();
328        }
329        return;
330    }
331
332    const uint8_t *p = static_cast<const uint8_t *>(ptr);
333    for (uint32_t i=0; i < mFieldCount; i++) {
334        if (mFields[i].e->mHasReference) {
335            const uint8_t *p2 = &p[mFields[i].offsetBits >> 3];
336            for (uint32_t ct=0; ct < mFields[i].arraySize; ct++) {
337                mFields[i].e->decRefs(p2);
338                p2 += mFields[i].e->getSizeBytes();
339            }
340        }
341    }
342}
343
344Element::Builder::Builder() {
345    const uint32_t initialCapacity = 32;
346    mBuilderElementRefs.setCapacity(initialCapacity);
347    mBuilderElements.setCapacity(initialCapacity);
348    mBuilderNameStrings.setCapacity(initialCapacity);
349    mBuilderNameLengths.setCapacity(initialCapacity);
350    mBuilderArrays.setCapacity(initialCapacity);
351}
352
353void Element::Builder::add(const Element *e, const char *nameStr, uint32_t arraySize) {
354    mBuilderElementRefs.push(ObjectBaseRef<const Element>(e));
355    mBuilderElements.push(e);
356    mBuilderNameStrings.push(nameStr);
357    mBuilderNameLengths.push(strlen(nameStr));
358    mBuilderArrays.push(arraySize);
359
360}
361
362ObjectBaseRef<const Element> Element::Builder::create(Context *rsc) {
363    return Element::createRef(rsc, mBuilderElements.size(),
364                              &(mBuilderElements.editArray()[0]),
365                              &(mBuilderNameStrings.editArray()[0]),
366                              mBuilderNameLengths.editArray(),
367                              mBuilderArrays.editArray());
368}
369
370
371ElementState::ElementState() {
372}
373
374ElementState::~ElementState() {
375    rsAssert(!mElements.size());
376}
377
378/////////////////////////////////////////
379//
380
381namespace android {
382namespace renderscript {
383
384RsElement rsi_ElementCreate(Context *rsc,
385                            RsDataType dt,
386                            RsDataKind dk,
387                            bool norm,
388                            uint32_t vecSize) {
389    return (RsElement)Element::create(rsc, dt, dk, norm, vecSize);
390}
391
392
393RsElement rsi_ElementCreate2(Context *rsc,
394                             const RsElement * ein,
395                             size_t ein_length,
396
397                             const char ** names,
398                             size_t nameLengths_length,
399                             const size_t * nameLengths,
400
401                             const uint32_t * arraySizes,
402                             size_t arraySizes_length) {
403    return (RsElement)Element::create(rsc, ein_length, (const Element **)ein,
404                                      names, nameLengths, arraySizes);
405}
406
407}
408}
409
410void rsaElementGetNativeData(RsContext con, RsElement elem,
411                             uint32_t *elemData, uint32_t elemDataSize) {
412    rsAssert(elemDataSize == 5);
413    // we will pack mType; mKind; mNormalized; mVectorSize; NumSubElements
414    Element *e = static_cast<Element *>(elem);
415
416    (*elemData++) = (uint32_t)e->getType();
417    (*elemData++) = (uint32_t)e->getKind();
418    (*elemData++) = e->getComponent().getIsNormalized() ? 1 : 0;
419    (*elemData++) = e->getComponent().getVectorSize();
420    (*elemData++) = e->getFieldCount();
421}
422
423void rsaElementGetSubElements(RsContext con, RsElement elem, uint32_t *ids,
424                              const char **names, uint32_t *arraySizes, uint32_t dataSize) {
425    Element *e = static_cast<Element *>(elem);
426    rsAssert(e->getFieldCount() == dataSize);
427
428    for (uint32_t i = 0; i < dataSize; i ++) {
429        e->getField(i)->incUserRef();
430        ids[i] = (uint32_t)e->getField(i);
431        names[i] = e->getFieldName(i);
432        arraySizes[i] = e->getFieldArraySize(i);
433    }
434}
435