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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2012/07/04)
#include "BlendedTerrainEffect.h"
#include "Wm5Environment.h"
#include "Wm5PVWMatrixConstant.h"
#include "Wm5Texture1D.h"
using namespace Wm5;
WM5_IMPLEMENT_RTTI(Wm5, VisualEffect, BlendedTerrainEffect);
WM5_IMPLEMENT_STREAM(BlendedTerrainEffect);
WM5_IMPLEMENT_FACTORY(BlendedTerrainEffect);
//----------------------------------------------------------------------------
BlendedTerrainEffect::BlendedTerrainEffect (const std::string& effectFile)
:
VisualEffect(effectFile)
{
// TODO: Once WmfxCompiler parses the Cg FX files, we will not need to
// set the sampler state.
PixelShader* pshader = GetPixelShader(0, 0);
// GrassSampler
pshader->SetFilter(0, Shader::SF_LINEAR_LINEAR);
pshader->SetCoordinate(0, 0, Shader::SC_REPEAT);
pshader->SetCoordinate(0, 1, Shader::SC_REPEAT);
// StoneSampler
pshader->SetFilter(1, Shader::SF_LINEAR_LINEAR);
pshader->SetCoordinate(1, 0, Shader::SC_REPEAT);
pshader->SetCoordinate(1, 1, Shader::SC_REPEAT);
// BlendSampler
pshader->SetFilter(2, Shader::SF_LINEAR);
pshader->SetCoordinate(2, 0, Shader::SC_REPEAT);
// CloudSampler
pshader->SetFilter(3, Shader::SF_LINEAR_LINEAR);
pshader->SetCoordinate(3, 0, Shader::SC_REPEAT);
pshader->SetCoordinate(3, 1, Shader::SC_REPEAT);
// Create a 1-dimensional texture whose intensities are proportional to
// height.
const int numTexels = 256;
mBlendTexture = new0 Texture1D(Texture::TF_L8, numTexels, 1);
unsigned char* data = (unsigned char*)mBlendTexture->GetData(0);
for (int i = 0; i < numTexels; ++i)
{
*data++ = (unsigned char)i;
}
}
//----------------------------------------------------------------------------
BlendedTerrainEffect::~BlendedTerrainEffect ()
{
}
//----------------------------------------------------------------------------
VisualEffectInstance* BlendedTerrainEffect::CreateInstance (
ShaderFloat* flowDirection, ShaderFloat* powerFactor,
Texture2D* grassTexture, Texture2D* stoneTexture, Texture2D* cloudTexture)
{
VisualEffectInstance* instance = new0 VisualEffectInstance(this, 0);
instance->SetVertexConstant(0, 0, new0 PVWMatrixConstant());
instance->SetVertexConstant(0, 1, flowDirection);
instance->SetPixelConstant(0, 0, powerFactor);
instance->SetPixelTexture(0, 0, grassTexture);
instance->SetPixelTexture(0, 1, stoneTexture);
instance->SetPixelTexture(0, 2, mBlendTexture);
instance->SetPixelTexture(0, 3, cloudTexture);
return instance;
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Name support.
//----------------------------------------------------------------------------
Object* BlendedTerrainEffect::GetObjectByName (const std::string& name)
{
Object* found = VisualEffect::GetObjectByName(name);
if (found)
{
return found;
}
WM5_GET_OBJECT_BY_NAME(mBlendTexture, name, found);
return 0;
}
//----------------------------------------------------------------------------
void BlendedTerrainEffect::GetAllObjectsByName (const std::string& name,
std::vector<Object*>& objects)
{
VisualEffect::GetAllObjectsByName(name, objects);
WM5_GET_ALL_OBJECTS_BY_NAME(mBlendTexture, name, objects);
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Streaming support.
//----------------------------------------------------------------------------
BlendedTerrainEffect::BlendedTerrainEffect (LoadConstructor value)
:
VisualEffect(value)
{
}
//----------------------------------------------------------------------------
void BlendedTerrainEffect::Load (InStream& source)
{
WM5_BEGIN_DEBUG_STREAM_LOAD(source);
VisualEffect::Load(source);
source.ReadPointer(mBlendTexture);
WM5_END_DEBUG_STREAM_LOAD(BlendedTerrainEffect, source);
}
//----------------------------------------------------------------------------
void BlendedTerrainEffect::Link (InStream& source)
{
VisualEffect::Link(source);
source.ResolveLink(mBlendTexture);
}
//----------------------------------------------------------------------------
void BlendedTerrainEffect::PostLink ()
{
VisualEffect::PostLink();
//VisualPass* pass = mTechniques[0]->GetPass(0);
//VertexShader* vshader = pass->GetVertexShader();
//PixelShader* pshader = pass->GetPixelShader();
//vshader->SetBaseRegisters(msVRegisters);
//vshader->SetPrograms(msVPrograms);
//pshader->SetBaseRegisters(msPRegisters);
//pshader->SetTextureUnits(msPTextureUnits);
//pshader->SetPrograms(msPPrograms);
}
//----------------------------------------------------------------------------
bool BlendedTerrainEffect::Register (OutStream& target) const
{
if (VisualEffect::Register(target))
{
target.Register(mBlendTexture);
return true;
}
return false;
}
//----------------------------------------------------------------------------
void BlendedTerrainEffect::Save (OutStream& target) const
{
WM5_BEGIN_DEBUG_STREAM_SAVE(target);
VisualEffect::Save(target);
target.WritePointer(mBlendTexture);
WM5_END_DEBUG_STREAM_SAVE(BlendedTerrainEffect, target);
}
//----------------------------------------------------------------------------
int BlendedTerrainEffect::GetStreamingSize () const
{
int size = VisualEffect::GetStreamingSize();
size += WM5_POINTERSIZE(mBlendTexture);
return size;
}
//----------------------------------------------------------------------------
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