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/*
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* \file image.hpp
*
*/
#ifndef __GBE_IR_IMAGE_HPP__
#define __GBE_IR_IMAGE_HPP__
#include "ir/register.hpp"
#include "ir/instruction.hpp" // for ImageInfoKey
#include "sys/map.hpp"
extern "C" {
struct ImageInfo;
}
namespace gbe {
namespace ir {
class Context;
/*! An image set is a set of images which are defined in kernel args.
* We use this set to gather the images here and allocate a unique index
* for each individual image. And that individual image could be used
* at backend to identify this image's location.
*/
class ImageSet : public Serializable
{
public:
/*! Append an image argument. */
void append(Register imageReg, Context *ctx, uint8_t bti);
/*! Append an image info slot. */
void appendInfo(ImageInfoKey key, uint32_t offset);
/*! Append an image info register. */
Register appendInfo(ImageInfoKey, Context *ctx);
/*! clear image info. */
void clearInfo();
/*! Get the image's index(actual location). */
const uint32_t getIdx(const Register imageReg) const;
size_t getDataSize(void) { return regMap.size(); }
size_t getDataSize(void) const { return regMap.size(); }
const int32_t getInfoOffset(ImageInfoKey key) const;
void getData(struct ImageInfo *imageInfos) const;
void operator = (const ImageSet& other) {
regMap.insert(other.regMap.begin(), other.regMap.end());
}
bool empty() const { return regMap.empty(); }
ImageSet(const ImageSet& other) : regMap(other.regMap.begin(), other.regMap.end()) { }
ImageSet() {}
~ImageSet();
static const uint32_t magic_begin = TO_MAGIC('I', 'M', 'A', 'G');
static const uint32_t magic_end = TO_MAGIC('G', 'A', 'M', 'I');
/* format:
magic_begin |
regMap_size |
element_1 |
........ |
element_n |
indexMap_size |
element_1 |
........ |
element_n |
magic_end |
total_size
*/
/*! Implements the serialization. */
virtual size_t serializeToBin(std::ostream& outs);
virtual size_t deserializeFromBin(std::istream& ins);
virtual void printStatus(int indent, std::ostream& outs);
private:
map<Register, struct ImageInfo *> regMap;
map<uint32_t, struct ImageInfo *> indexMap;
map<uint16_t, Register> infoRegMap;
GBE_CLASS(ImageSet);
};
} /* namespace ir */
} /* namespace gbe */
#endif /* __GBE_IR_IMAGE_HPP__ */
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