shdsimple.cpp

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/*
**  Command & Conquer Generals Zero Hour(tm)
**  Copyright 2025 Electronic Arts Inc.
**
**  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/>.
*/
 
 /***********************************************************************************************
 ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
 ***********************************************************************************************
 *                                                                                             *
 *                 Project Name : WWSHADE                                                         *
 *                                                                                             *
 *                     $Archive:: wwshade/shdsimple.cpp                           $*
 *                                                                                             *
 *                  $Org Author:: Kenny_m
 *                                                                                                                                  
 *                      $Author:: Kenny_m
 *                                                                                                                                  
 *                            $Modtime:: 7/12/02 3:12p                                               $*
 *                                                                                             *
 *                    $Revision:: 1                                                          $*
 *                                                                                             *
 *---------------------------------------------------------------------------------------------*
 * Functions:                                                                                  *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
 
#include <d3dx8math.h>
#include "dx8fvf.h"
#include "dx8wrapper.h"
#include "assetmgr.h"
 
#include "shdsimple.h"
 
#include "editable.h"
#include "shdclassids.h"
#include "shddeffactory.h"
#include "shdinterface.h"
#include "shdhwshader.h"
 
#include "persistfactory.h"
#include "wwhack.h"
 
DECLARE_FORCE_LINK(SimpleShader);
REGISTER_SHDDEF(ShdSimpleDefClass,SHDDEF_CLASSID_SIMPLE,"Simple");
 
 
// Save-Load methods for ShdDefClass
enum 
{
    CHUNKID_VARIABLES =            0x16490450,
 
    VARID_TEXTURE_NAME =                  0x00,
 
    VARID_AMBIENT_COLOR,
    VARID_DIFFUSE_COLOR
};
 
ShdSimpleDefClass::ShdSimpleDefClass() 
:   ShdDefClass(SHDDEF_CLASSID_SIMPLE),
    Ambient(1,1,1),
    Diffuse(1,1,1)
{
    NAMED_TEXTURE_FILENAME_PARAM(ShdSimpleDefClass, TextureName, "Texture Name", "Targa Files", ".tga");
 
    NAMED_EDITABLE_PARAM(ShdSimpleDefClass, ParameterClass::TYPE_COLOR, Ambient, "Ambient");
    NAMED_EDITABLE_PARAM(ShdSimpleDefClass, ParameterClass::TYPE_COLOR, Diffuse, "Diffuse");
}
 
ShdSimpleDefClass::ShdSimpleDefClass(const ShdSimpleDefClass& that)
:   ShdDefClass(that),
    Ambient(0,0,0),
    Diffuse(1,1,1)
{
    TextureName=that.TextureName;
 
    Ambient=that.Ambient;
    Diffuse=that.Diffuse;
}
 
ShdSimpleDefClass::~ShdSimpleDefClass()
{
}
 
bool ShdSimpleDefClass::Is_Valid_Config(StringClass &message)
{
    return true;
}
 
bool ShdSimpleDefClass::Save(ChunkSaveClass &csave)
{
    ShdDefClass::Save(csave);
 
    csave.Begin_Chunk(CHUNKID_VARIABLES);   
 
        bool retval = true;
    
        // only save the file name
        char fname[_MAX_PATH];
 
        _splitpath(TextureName,NULL,NULL,fname,NULL);
        strcat(fname,".tga");
        TextureName=fname;
 
        WRITE_MICRO_CHUNK_WWSTRING(csave, VARID_TEXTURE_NAME, TextureName);
 
        WRITE_MICRO_CHUNK(csave, VARID_AMBIENT_COLOR, Ambient);
        WRITE_MICRO_CHUNK(csave, VARID_DIFFUSE_COLOR, Diffuse);
 
    csave.End_Chunk();
 
    return retval;
}
 
bool ShdSimpleDefClass::Load(ChunkLoadClass &cload)
{
    ShdDefClass::Load(cload);
 
    //  Loop through all the microchunks that define the variables
    while (cload.Open_Chunk()) {
        switch (cload.Cur_Chunk_ID())
        {
        case CHUNKID_VARIABLES:
            while (cload.Open_Micro_Chunk()) 
            {
                switch (cload.Cur_Micro_Chunk_ID()) 
                {
                READ_MICRO_CHUNK_WWSTRING(cload, VARID_TEXTURE_NAME, TextureName);
 
                READ_MICRO_CHUNK(cload, VARID_AMBIENT_COLOR, Ambient);
                READ_MICRO_CHUNK(cload, VARID_DIFFUSE_COLOR, Diffuse);
                }
 
                cload.Close_Micro_Chunk();
            }
            break;
        
        default:
            break;
        }
 
        cload.Close_Chunk();
    }
 
    return true;
}
 
 
void ShdSimpleDefClass::Init()
{
    Shd6SimpleClass::Init();
}
 
void ShdSimpleDefClass::Shutdown()
{
    Shd6SimpleClass::Shutdown();
}
 
ShdInterfaceClass* ShdSimpleDefClass::Create() const
{
    return new Shd6SimpleClass(this);
}
 
 
 
Matrix4x4              Shd6SimpleClass::View_Projection_Matrix;
 
Shd6SimpleClass::Shd6SimpleClass(const ShdDefClass* def)
:   ShdInterfaceClass(def,SHDDEF_CLASSID_SIMPLE),
    Texture(NULL)
{
    ShdSimpleDefClass* Definition=(ShdSimpleDefClass*)def;
 
    Texture=WW3DAssetManager::Get_Instance()->Get_Texture
    (
        Definition->Get_Texture_Name()
    );
 
    const Vector3& a=Definition->Get_Ambient();
    Ambient.Set(a.X,a.Y,a.Z,1.0f);
 
    const Vector3& d=Definition->Get_Diffuse();
    Diffuse.Set(d.X,d.Y,d.Z,1.0f);
 
    Material=new D3DMATERIAL8;
    memset(Material,0,sizeof(D3DMATERIAL8));
    Material->Ambient.r=a.X; Material->Ambient.g=a.Y; Material->Ambient.b=a.Z; 
    Material->Diffuse.r=d.X; Material->Diffuse.g=d.Y; Material->Diffuse.b=d.Z; 
}
 
Shd6SimpleClass::~Shd6SimpleClass()
{
    REF_PTR_RELEASE(Texture);
}
 
void Shd6SimpleClass::Init()
{
}
 
void Shd6SimpleClass::Shutdown()
{
}
 
 
/**********************************************************************************************

void Shd6SimpleClass::Apply_Shared(int pass, RenderInfoClass& rinfo)
{
    // fixed function uses pass through by default
    DX8Wrapper::Set_DX8_Texture_Stage_State(0, D3DTSS_TEXCOORDINDEX, D3DTSS_TCI_PASSTHRU);
 
    // set vertex shader
    DX8Wrapper::Set_Vertex_Shader(DX8_FVF_XYZNDUV1);
 
    DX8Wrapper::Set_DX8_Texture_Stage_State(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
    DX8Wrapper::Set_DX8_Texture_Stage_State(0, D3DTSS_COLOROP,   D3DTOP_MODULATE );
    DX8Wrapper::Set_DX8_Texture_Stage_State(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );
 
    DX8Wrapper::Set_DX8_Texture_Stage_State(0, D3DTSS_ALPHAOP,   D3DTOP_MODULATE );
 
    DX8Wrapper::Set_DX8_Texture_Stage_State(1, D3DTSS_COLOROP,   D3DTOP_DISABLE );
    DX8Wrapper::Set_DX8_Texture_Stage_State(1, D3DTSS_ALPHAOP,   D3DTOP_DISABLE );
 
    DX8Wrapper::Set_DX8_Render_State(D3DRS_LIGHTING, TRUE);
 
    DX8Wrapper::Set_DX8_Render_State(D3DRS_AMBIENTMATERIALSOURCE,D3DMCS_MATERIAL);
    DX8Wrapper::Set_DX8_Render_State(D3DRS_DIFFUSEMATERIALSOURCE,D3DMCS_MATERIAL);
    DX8Wrapper::Set_DX8_Render_State(D3DRS_SPECULARMATERIALSOURCE,D3DMCS_MATERIAL);
    DX8Wrapper::Set_DX8_Render_State(D3DRS_EMISSIVEMATERIALSOURCE,D3DMCS_MATERIAL);
 
}
 
//**********************************************************************************************

void Shd6SimpleClass::Apply_Instance(int cur_pass, RenderInfoClass& rinfo)
{
    DX8Wrapper::Set_DX8_Material(Material);
    DX8Wrapper::Set_Texture(0, Texture);
}
 
unsigned Shd6SimpleClass::Get_Vertex_Stream_Count() const
{
    return 1;
}
 
unsigned Shd6SimpleClass::Get_Vertex_Size(unsigned stream) const
{
    return sizeof(VertexFormatXYZNDUV1);
}
 
void Shd6SimpleClass::Copy_Vertex_Stream
(
    unsigned stream, 
    void* dest_buffer, 
    const VertexStreamStruct& vss, 
    unsigned vertex_count
)
{
   VertexFormatXYZNDUV1* verts=(VertexFormatXYZNDUV1*)dest_buffer;
 
    for (unsigned i=0; i<vertex_count; ++i) 
    {
        if (vss.Locations) 
        {
            verts[i].x=vss.Locations[i][0];
            verts[i].y=vss.Locations[i][1];
            verts[i].z=vss.Locations[i][2];
        }
        else 
        {
            verts[i].x=0.0f;
            verts[i].y=0.0f;
            verts[i].z=0.0f;
        }
 
        if (vss.DiffuseInt) 
        {
            verts[i].diffuse=vss.DiffuseInt[i];
        }
        else 
        {
            verts[i].diffuse=0xffffffff;
        }
    
        if (vss.Normals) 
        {
            verts[i].nx=vss.Normals[i][0];
            verts[i].ny=vss.Normals[i][1];
            verts[i].nz=vss.Normals[i][2];
        }
        else 
        {
            verts[i].nx=0.0f;
            verts[i].ny=0.0f;
            verts[i].nz=0.0f;
        }
 
        if (vss.UV[0])
        {
            verts[i].u1=vss.UV[0][i].U;
            verts[i].v1=vss.UV[0][i].V;
        }
        else 
        {
            verts[i].u1=0.0f;
            verts[i].v1=0.0f;
        }
    }
}