rsElement.h revision d01d970cf5973aa5186cc02c80fb2c143a69b0b1 
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
36    //void setComponent(uint32_t idx, Component *c);
37
38    uint32_t getGLType() const;
39    uint32_t getGLFormat() const;
40
41
42    size_t getSizeBits() const;
43    size_t getSizeBytes() const {
44        return (getSizeBits() + 7) >> 3;
45    }
46
47    size_t getFieldOffsetBits(uint32_t componentNumber) const;
48    size_t getFieldOffsetBytes(uint32_t componentNumber) const {
49        return (getFieldOffsetBits(componentNumber) + 7) >> 3;
50    }
51
52    uint32_t getFieldCount() const {return mFieldCount;}
53    const Element * getField(uint32_t idx) const {return mFields[idx].e.get();}
54    const char * getFieldName(uint32_t idx) const {return mFields[idx].name.string();}
55
56    const Component & getComponent() const {return mComponent;}
57    RsDataType getType() const {return mComponent.getType();}
58    //bool getIsNormalized() const {return mIsNormalized;}
59    RsDataKind getKind() const {return mComponent.getKind();}
60    uint32_t getBits() const {return mBits;}
61    //uint32_t getGLType() const;
62
63    String8 getCType(uint32_t indent=0) const;
64    String8 getCStructBody(uint32_t indent=0) const;
65
66    void dumpLOGV(const char *prefix) const;
67
68    static Element * create(Context *rsc, RsDataType dt, RsDataKind dk,
69                            bool isNorm, uint32_t vecSize);
70    static Element * create(Context *rsc, size_t count, const Element **,
71                            const char **, const size_t * lengths);
72
73protected:
74    // deallocate any components that are part of this element.
75    void clear();
76
77    typedef struct {
78        String8 name;
79        ObjectBaseRef<const Element> e;
80    } ElementField_t;
81    ElementField_t *mFields;
82    size_t mFieldCount;
83
84
85    Element(Context *);
86
87    Component mComponent;
88    uint32_t mBits;
89};
90
91
92class ElementState {
93public:
94    ElementState();
95    ~ElementState();
96
97    Vector<Element *> mBuildList;
98    Vector<String8> mNames;
99};
100
101
102}
103}
104#endif //ANDROID_STRUCTURED_ELEMENT_H
105