dolphin/Source/Core/VideoBackends/D3D/GfxState.h

67 lines
1.4 KiB
C++

// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include <stack>
struct ID3D11BlendState;
struct ID3D11DepthStencilState;
struct ID3D11RasterizerState;
namespace DX11
{
namespace D3D
{
template<typename T> class AutoState
{
public:
AutoState(const T* object);
AutoState(const AutoState<T> &source);
~AutoState();
const inline T* GetPtr() const { return state; }
private:
const T* state;
};
typedef AutoState<ID3D11BlendState> AutoBlendState;
typedef AutoState<ID3D11DepthStencilState> AutoDepthStencilState;
typedef AutoState<ID3D11RasterizerState> AutoRasterizerState;
class StateManager
{
public:
StateManager();
// call any of these to change the affected states
void PushBlendState(const ID3D11BlendState* state);
void PushDepthState(const ID3D11DepthStencilState* state);
void PushRasterizerState(const ID3D11RasterizerState* state);
// call these after drawing
void PopBlendState();
void PopDepthState();
void PopRasterizerState();
// call this before any drawing operation if states could have changed meanwhile
void Apply();
private:
std::stack<AutoBlendState> blendstates;
std::stack<AutoDepthStencilState> depthstates;
std::stack<AutoRasterizerState> raststates;
ID3D11BlendState* cur_blendstate;
ID3D11DepthStencilState* cur_depthstate;
ID3D11RasterizerState* cur_raststate;
};
extern StateManager* stateman;
} // namespace
} // namespace DX11