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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_STRUCTURED_ELEMENT_H
#define ANDROID_STRUCTURED_ELEMENT_H
#include "rsComponent.h"
#include "rsUtils.h"
#include "rsObjectBase.h"
// ---------------------------------------------------------------------------
namespace android {
namespace renderscript {
// An element is a group of Components that occupies one cell in a structure.
class Element : public ObjectBase
{
public:
~Element();
uint32_t getGLType() const;
uint32_t getGLFormat() const;
size_t getSizeBits() const;
size_t getSizeBytes() const {
return (getSizeBits() + 7) >> 3;
}
size_t getFieldOffsetBits(uint32_t componentNumber) const;
size_t getFieldOffsetBytes(uint32_t componentNumber) const {
return (getFieldOffsetBits(componentNumber) + 7) >> 3;
}
uint32_t getFieldCount() const {return mFieldCount;}
const Element * getField(uint32_t idx) const {return mFields[idx].e.get();}
const char * getFieldName(uint32_t idx) const {return mFields[idx].name.string();}
const Component & getComponent() const {return mComponent;}
RsDataType getType() const {return mComponent.getType();}
RsDataKind getKind() const {return mComponent.getKind();}
uint32_t getBits() const {return mBits;}
String8 getCType(uint32_t indent=0) const;
String8 getCStructBody(uint32_t indent=0) const;
String8 getGLSLType(uint32_t indent=0) const;
void dumpLOGV(const char *prefix) const;
static const Element * create(Context *rsc, RsDataType dt, RsDataKind dk,
bool isNorm, uint32_t vecSize);
static const Element * create(Context *rsc, size_t count, const Element **,
const char **, const size_t * lengths);
protected:
// deallocate any components that are part of this element.
void clear();
typedef struct {
String8 name;
ObjectBaseRef<const Element> e;
} ElementField_t;
ElementField_t *mFields;
size_t mFieldCount;
Element(Context *);
Component mComponent;
uint32_t mBits;
};
class ElementState {
public:
ElementState();
~ElementState();
// Cache of all existing elements.
Vector<const Element *> mElements;
};
}
}
#endif //ANDROID_STRUCTURED_ELEMENT_H
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