dolphin/Source/Plugins/Plugin_VideoDX11/Src/GfxState.h

80 lines
2.0 KiB
C++

// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program 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 General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#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