Commands.h

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/*
Copyright (c) 2018 DIVIDE-Studio
Copyright (c) 2009 Ionut Cava
 
This file is part of DIVIDE Framework.
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software
and associated documentation files (the "Software"), to deal in the Software
without restriction,
including without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so,
subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
*/
 
#pragma once
#ifndef DVD_GFX_COMMAND_H_
#define DVD_GFX_COMMAND_H_
 
namespace Divide {
 
namespace GFX {
 
enum class CommandType : U8;
class CommandBuffer;
 
struct CommandBase;
 
template <CommandType> struct MapToDataType_t;
 
template <CommandType T>
using MapToDataType = typename MapToDataType_t<T>::type;
 
struct CommandBase
{
    explicit CommandBase(CommandType type) : _type( type ) {}
 
    CommandBase(const CommandBase&) = default;
    CommandBase& operator=(const CommandBase&) = default;
 
    virtual ~CommandBase() = default;
 
    template<typename T> requires std::is_base_of_v<CommandBase, T>
    [[nodiscard]] FORCE_INLINE T* As() { return static_cast<T*>(this); }
 
    virtual void addToBuffer(CommandBuffer* buffer) const = 0;
 
    PROPERTY_R( CommandType, type );
 
protected:
    friend class CommandBuffer;
    virtual void DeleteCmd( CommandBase*& cmd ) const = 0;
};
 
template<CommandType EnumVal>
struct Command : CommandBase
{
    static constexpr CommandType EType = EnumVal;
 
    Command() : CommandBase( EType ) {}
 
    virtual void addToBuffer(CommandBuffer* buffer) const final;
 
protected:
     virtual void DeleteCmd(CommandBase*& cmd) const final;
};
 
string ToString(const CommandBase& cmd, CommandType type, U16 indent);
 
 
#define DEFINE_COMMAND_BEGIN(Name, Enum) \
struct Name;\
template<> struct MapToDataType_t<Enum> { using type = Name; }; \
struct Name final : public Command<Enum> { \
PROPERTY_RW(bool, flag, false)
 
#define DEFINE_COMMAND_END(Name) } 
 
#define DEFINE_COMMAND(Name, Enum) \
DEFINE_COMMAND_BEGIN(Name, Enum);\
DEFINE_COMMAND_END(Name)
 
}; //namespace GFX
}; //namespace Divide
 
#endif //DVD_GFX_COMMAND_H_
 
#include "Commands.inl"