rsElement.h revision 383e5b1f68c321a77bfd7466fa1171a9bfab4a6f
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#ifndef ANDROID_STRUCTURED_ELEMENT_H 18#define ANDROID_STRUCTURED_ELEMENT_H 19 20#include "rsComponent.h" 21#include "rsUtils.h" 22#include "rsObjectBase.h" 23 24// --------------------------------------------------------------------------- 25namespace android { 26namespace renderscript { 27 28 29// An element is a group of Components that occupies one cell in a structure. 30class Element : public ObjectBase 31{ 32public: 33 ~Element(); 34 35 uint32_t getGLType() const; 36 uint32_t getGLFormat() const; 37 38 size_t getSizeBits() const; 39 size_t getSizeBytes() const { 40 return (getSizeBits() + 7) >> 3; 41 } 42 43 size_t getFieldOffsetBits(uint32_t componentNumber) const { 44 return mFields[componentNumber].offsetBits; 45 } 46 size_t getFieldOffsetBytes(uint32_t componentNumber) const { 47 return mFields[componentNumber].offsetBits >> 3; 48 } 49 50 uint32_t getFieldCount() const {return mFieldCount;} 51 const Element * getField(uint32_t idx) const {return mFields[idx].e.get();} 52 const char * getFieldName(uint32_t idx) const {return mFields[idx].name.string();} 53 54 const Component & getComponent() const {return mComponent;} 55 RsDataType getType() const {return mComponent.getType();} 56 RsDataKind getKind() const {return mComponent.getKind();} 57 uint32_t getBits() const {return mBits;} 58 59 String8 getGLSLType(uint32_t indent=0) const; 60 61 void dumpLOGV(const char *prefix) const; 62 virtual void serialize(OStream *stream) const; 63 virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_ELEMENT; } 64 static Element *createFromStream(Context *rsc, IStream *stream); 65 66 static const Element * create(Context *rsc, RsDataType dt, RsDataKind dk, 67 bool isNorm, uint32_t vecSize); 68 static const Element * create(Context *rsc, size_t count, const Element **, 69 const char **, const size_t * lengths, const uint32_t *asin); 70 71 void incRefs(const void *) const; 72 void decRefs(const void *) const; 73 bool getHasReferences() const {return mHasReference;} 74 75 bool isEqual(const Element *other) const; 76 77protected: 78 // deallocate any components that are part of this element. 79 void clear(); 80 81 typedef struct { 82 String8 name; 83 ObjectBaseRef<const Element> e; 84 uint32_t offsetBits; 85 uint32_t arraySize; 86 } ElementField_t; 87 ElementField_t *mFields; 88 size_t mFieldCount; 89 bool mHasReference; 90 91 92 Element(Context *); 93 94 Component mComponent; 95 uint32_t mBits; 96}; 97 98 99class ElementState { 100public: 101 ElementState(); 102 ~ElementState(); 103 104 void elementBuilderBegin(); 105 void elementBuilderAdd(const Element *e, const char *nameStr, uint32_t arraySize); 106 const Element *elementBuilderCreate(Context *rsc); 107 108 // Cache of all existing elements. 109 Vector<Element *> mElements; 110private: 111 Vector<const Element *> mBuilderElements; 112 Vector<const char*> mBuilderNameStrings; 113 Vector<size_t> mBuilderNameLengths; 114 Vector<uint32_t> mBuilderArrays; 115}; 116 117 118} 119} 120#endif //ANDROID_STRUCTURED_ELEMENT_H 121