/*
 * Copyright (C) 2012 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 RSD_CPU_H
#define RSD_CPU_H

#include "rsAllocation.h"

#ifndef RS_COMPATIBILITY_LIB
namespace llvm {

class Module;

}  // end namespace llvm

namespace bcc {

class RSScript;
typedef llvm::Module* (*RSLinkRuntimeCallback) (bcc::RSScript *, llvm::Module *, llvm::Module *);

}  // end namespace bcc;

typedef const char* (*RSSelectRTCallback) (const char*, size_t);
#endif

namespace android {
namespace renderscript {

class ScriptC;
class Script;
class ScriptGroup;
class ScriptKernelID;


class RsdCpuReference {
public:
    struct CpuSymbol {
        const char * name;
        void * fnPtr;
        bool threadable;
    };

    typedef const CpuSymbol * (* sym_lookup_t)(Context *, const char *name);

    struct CpuTls {
        Context *rsc;
        const ScriptC * sc;
    };

    class CpuScript {
    public:
        virtual void populateScript(Script *) = 0;
        virtual void invokeFunction(uint32_t slot, const void *params, size_t paramLength) = 0;
        virtual int invokeRoot() = 0;
        virtual void invokeForEach(uint32_t slot,
                           const Allocation * ain,
                           Allocation * aout,
                           const void * usr,
                           uint32_t usrLen,
                           const RsScriptCall *sc) = 0;
        virtual void invokeInit() = 0;
        virtual void invokeFreeChildren() = 0;

        virtual void setGlobalVar(uint32_t slot, const void *data, size_t dataLength) = 0;
        virtual void setGlobalVarWithElemDims(uint32_t slot, const void *data, size_t dataLength,
                                      const Element *e, const size_t *dims, size_t dimLength) = 0;
        virtual void setGlobalBind(uint32_t slot, Allocation *data) = 0;
        virtual void setGlobalObj(uint32_t slot, ObjectBase *obj) = 0;

        virtual Allocation * getAllocationForPointer(const void *ptr) const = 0;
        virtual ~CpuScript() {}

#ifndef RS_COMPATIBILITY_LIB
        virtual  void * getRSExecutable()  = 0;
#endif
    };
    typedef CpuScript * (* script_lookup_t)(Context *, const Script *s);

    class CpuScriptGroup {
    public:
        virtual void setInput(const ScriptKernelID *kid, Allocation *) = 0;
        virtual void setOutput(const ScriptKernelID *kid, Allocation *) = 0;
        virtual void execute() = 0;
        virtual ~CpuScriptGroup() {};
    };

    static Context * getTlsContext();
    static const Script * getTlsScript();
    static pthread_key_t getThreadTLSKey();

    static RsdCpuReference * create(Context *c, uint32_t version_major,
                                    uint32_t version_minor, sym_lookup_t lfn, script_lookup_t slfn
#ifndef RS_COMPATIBILITY_LIB
                                    , bcc::RSLinkRuntimeCallback pLinkRuntimeCallback = NULL,
                                    RSSelectRTCallback pSelectRTCallback = NULL
#endif
                                    );
    virtual ~RsdCpuReference();
    virtual void setPriority(int32_t priority) = 0;

    virtual CpuScript * createScript(const ScriptC *s, char const *resName, char const *cacheDir,
                                     uint8_t const *bitcode, size_t bitcodeSize,
                                     uint32_t flags) = 0;
    virtual CpuScript * createIntrinsic(const Script *s, RsScriptIntrinsicID iid, Element *e) = 0;
    virtual CpuScriptGroup * createScriptGroup(const ScriptGroup *sg) = 0;
    virtual bool getInForEach() = 0;

};


}
}

#endif