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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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, either version 3 of the License, or
* (at your option) any later version.
*
* 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*
* Copyright (C) 2006-2010 - Frictional Games
*
* This file is part of HPL1 Engine.
*/
#ifndef HPL_RENDERER_POST_EFFECTS_H
#define HPL_RENDERER_POST_EFFECTS_H
#include "common/list.h"
#include "hpl1/engine/graphics/GraphicsTypes.h"
#include "hpl1/engine/math/MathTypes.h"
#include "hpl1/std/set.h"
namespace hpl {
#define kFilterProgramNum (1)
class iLowLevelGraphics;
class LowLevelResources;
class iGpuProgram;
class cResources;
class iTexture;
class cGpuProgramManager;
class cRenderList;
class cRenderer3D;
enum ePostEffectFilter {
ePostEffectFilter_Offset,
ePostEffectFilter_LastEnum
};
enum ePostEffectProgram {
ePostEffectProgram_Offset,
ePostEffectProgram_LastEnum
};
class cImageTrailEffect {
public:
cImageTrailEffect() : mbActive(false), mbFirstPass(false), mlCurrentBuffer(0) {}
bool mbActive;
bool mbFirstPass;
int mlCurrentBuffer;
float mfAmount;
};
class cResources;
class cRendererPostEffects {
public:
cRendererPostEffects(iLowLevelGraphics *apLowLevelGraphics, cResources *apResources,
cRenderList *apRenderList, cRenderer3D *apRenderer3D);
~cRendererPostEffects();
/**
* Render post effects, called by cScene
*/
void Render();
void SetImageTrailActive(bool abX) {
if (!mImageTrailData.mbActive && abX)
mImageTrailData.mbFirstPass = true;
mImageTrailData.mbActive = abX;
}
bool GetImageTrailActive() { return mImageTrailData.mbActive; }
/**
* Set the amount of blur
* \param afAmount 0.0 - 1.0 are valid
*/
void SetImageTrailAmount(float afAmount) { mImageTrailData.mfAmount = afAmount; }
iTexture *GetScreenBuffer(int alNum) { return mpScreenBuffer[alNum]; }
void SetActive(bool abX) { mbActive = abX; }
bool GetActive() { return mbActive; }
void SetBloomActive(bool abX);
bool GetBloomActive() { return mbBloomActive; }
void SetBloomSpread(float afX) { mfBloomSpread = afX; }
float GetBloomSpread() { return mfBloomSpread; }
void SetMotionBlurActive(bool abX);
bool GetMotionBlurActive() { return mbMotionBlurActive; }
void SetMotionBlurAmount(float afX) { mfMotionBlurAmount = afX; }
float GetMotionBlurAmount() { return mfMotionBlurAmount; }
void SetDepthOfFieldActive(bool abX) { mbDofActive = abX; }
void SetDepthOfFieldMaxBlur(float afX) { mfDofMaxBlur = afX; }
void SetDepthOfFieldFocalPlane(float afX) { mfDofFocalPlane = afX; }
void SetDepthOfFieldNearPlane(float afX) { mfDofNearPlane = afX; }
void SetDepthOfFieldFarPlane(float afX) { mfDofFarPlane = afX; }
bool GetDepthOfFieldActive() { return mbDofActive; }
float GetDepthOfFieldMaxBlur() { return mfDofMaxBlur; }
float GetDepthOfFieldFocalPlane() { return mfDofFocalPlane; }
float GetDepthOfFieldNearPlane() { return mfDofNearPlane; }
float GetDepthOfFieldFarPlane() { return mfDofFarPlane; }
iTexture *GetFreeScreenTexture() { return mpScreenBuffer[mImageTrailData.mlCurrentBuffer == 0 ? 1 : 0]; }
void RenderBlurTexture(iTexture *apDestination, iTexture *apSource, float afBlurAmount);
private:
void RenderImageTrail();
void RenderBloom();
void RenderMotionBlur();
void RenderDepthOfField();
iLowLevelGraphics *mpLowLevelGraphics;
LowLevelResources *mpLowLevelResources;
cResources *mpResources;
cGpuProgramManager *mpGpuManager;
cRenderer3D *mpRenderer3D;
cRenderList *mpRenderList;
cVector2f mvScreenSize;
iTexture *mpScreenBuffer[2];
cImageTrailEffect mImageTrailData;
iGpuProgram *_blur2DProgram;
iGpuProgram *_blurRectProgram;
bool mbBlurFallback;
iGpuProgram *_bloomProgram;
iTexture *mpBloomBlurTexture;
iGpuProgram *_motionBlurProgram;
iGpuProgram *_depthOfFieldProgram;
iTexture *mpDofBlurTexture;
tVertexVec mvTexRectVtx;
bool mbBloomActive;
float mfBloomSpread;
bool mbMotionBlurActive;
float mfMotionBlurAmount;
bool mbMotionBlurFirstTime;
bool mbDofActive;
float mfDofMaxBlur;
float mfDofFocalPlane;
float mfDofNearPlane;
float mfDofFarPlane;
bool mbActive;
};
} // namespace hpl
#endif // HPL_RENDERER_POST_EFFECTS_H
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