RAS_IPolygonMaterial.cpp

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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 2
 * 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, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "RAS_IPolygonMaterial.h"
#include "RAS_IRasterizer.h"

#include "DNA_image_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_material_types.h"

void  RAS_IPolyMaterial::Initialize( 
                const STR_String& texname,
                const STR_String& matname,
                int materialindex,
                int tile,
                int tilexrep,
                int tileyrep,
                int alphablend,
                bool alpha,
                bool zsort,
                bool light,
                bool image,
                struct GameSettings* game)
{
    m_texturename = texname;
    m_materialname = matname;
    m_materialindex = materialindex;
    m_tile = tile;
    m_tilexrep = tilexrep;
    m_tileyrep = tileyrep;
    m_alphablend = alphablend;
    m_alpha = alpha;
    m_zsort = zsort;
    m_light = light;
    m_polymatid = m_newpolymatid++;
    m_flag = 0;
    m_multimode = 0;
    m_shininess = 35.0;
    m_specular.setValue(0.5,0.5,0.5);
    m_specularity = 1.0;
    m_diffuse.setValue(0.5,0.5,0.5);
    m_drawingmode = ConvertFaceMode(game, image);
}

RAS_IPolyMaterial::RAS_IPolyMaterial() 
        : m_texturename("__Dummy_Texture_Name__"),
        m_materialname("__Dummy_Material_Name__"),
        m_tile(0),
        m_tilexrep(0),
        m_tileyrep(0),
        m_drawingmode (0),
        m_alphablend(0),
        m_alpha(false),
        m_zsort(false),
        m_light(false),
        m_materialindex(0),
        m_polymatid(0),
        m_flag(0),
        m_multimode(0)
{
    m_shininess = 35.0;
    m_specular = MT_Vector3(0.5,0.5,0.5);
    m_specularity = 1.0;
    m_diffuse = MT_Vector3(0.5,0.5,0.5);
}

RAS_IPolyMaterial::RAS_IPolyMaterial(const STR_String& texname,
                                     const STR_String& matname,
                                     int materialindex,
                                     int tile,
                                     int tilexrep,
                                     int tileyrep,
                                     int alphablend,
                                     bool alpha,
                                     bool zsort)
        : m_texturename(texname),
        m_materialname(matname),
        m_tile(tile),
        m_tilexrep(tilexrep),
        m_tileyrep(tileyrep),
        m_alphablend(alphablend),
        m_alpha(alpha),
        m_zsort(zsort),
        m_materialindex(materialindex),
        m_polymatid(m_newpolymatid++),
        m_flag(0),
        m_multimode(0)
{
    m_shininess = 35.0;
    m_specular = MT_Vector3(0.5,0.5,0.5);
    m_specularity = 1.0;
    m_diffuse = MT_Vector3(0.5,0.5,0.5);
}


bool RAS_IPolyMaterial::Equals(const RAS_IPolyMaterial& lhs) const
{
    if(m_flag &RAS_BLENDERMAT)
    {
        bool test = (
            this->m_multimode           ==      lhs.m_multimode &&
            this->m_flag                ==      lhs.m_flag      &&
            this->m_drawingmode         ==      lhs.m_drawingmode &&
            this->m_alphablend          ==      lhs.m_alphablend &&
            this->m_texturename.hash()      ==      lhs.m_texturename.hash() &&
            this->m_materialname.hash()         ==      lhs.m_materialname.hash()
        );

        return test;
    }
    else
    {
        return (
                this->m_tile        ==      lhs.m_tile &&
                this->m_tilexrep    ==      lhs.m_tilexrep &&
                this->m_tileyrep    ==      lhs.m_tileyrep &&
                this->m_alphablend  ==      lhs.m_alphablend &&
                this->m_alpha       ==      lhs.m_alpha &&
                this->m_zsort       ==      lhs.m_zsort &&
                this->m_light       ==      lhs.m_light &&
                this->m_drawingmode ==      lhs.m_drawingmode &&
                this->m_texturename.hash()  ==      lhs.m_texturename.hash() &&
                this->m_materialname.hash() ==      lhs.m_materialname.hash()
        );
    }
}

int RAS_IPolyMaterial::ConvertFaceMode(struct GameSettings *game, bool image) const
{
    if (!game) return (image?GEMAT_TEX:0);

    int modefinal = 0;

    int orimode   = game->face_orientation;
    int alpha_blend = game->alpha_blend;
    int flags = game->flag & (GEMAT_TEXT | GEMAT_BACKCULL);

    modefinal = orimode | alpha_blend | flags;
    modefinal |= (image ? GEMAT_TEX : 0);

    return modefinal;
}

void RAS_IPolyMaterial::GetMaterialRGBAColor(unsigned char *rgba) const
{
    *rgba++ = 0xFF;
    *rgba++ = 0xFF;
    *rgba++ = 0xFF;
    *rgba++ = 0xFF;
}

bool RAS_IPolyMaterial::Less(const RAS_IPolyMaterial& rhs) const
{
    if (Equals(rhs))
        return false;
        
    return m_polymatid < rhs.m_polymatid;
}

bool RAS_IPolyMaterial::IsAlpha() const
{
    return m_alpha || m_zsort;
}

bool RAS_IPolyMaterial::IsZSort() const
{
    return m_zsort;
}

unsigned int RAS_IPolyMaterial::hash() const
{
    return m_texturename.hash();
}

int RAS_IPolyMaterial::GetDrawingMode() const
{
    return m_drawingmode;
}

const STR_String& RAS_IPolyMaterial::GetMaterialName() const
{ 
    return m_materialname;
}

dword RAS_IPolyMaterial::GetMaterialNameHash() const
{
    return m_materialname.hash();
}

const STR_String& RAS_IPolyMaterial::GetTextureName() const
{
    return m_texturename;
}

int RAS_IPolyMaterial::GetMaterialIndex() const
{
    return m_materialindex;
}

Material *RAS_IPolyMaterial::GetBlenderMaterial() const
{
    return NULL;
}

Image *RAS_IPolyMaterial::GetBlenderImage() const
{
    return NULL;
}

Scene* RAS_IPolyMaterial::GetBlenderScene() const
{
    return NULL;
}

void RAS_IPolyMaterial::ReleaseMaterial()
{
}

unsigned int    RAS_IPolyMaterial::GetFlag() const
{
    return m_flag;
}

bool RAS_IPolyMaterial::UsesLighting(RAS_IRasterizer *rasty) const
{
    bool dolights = false;

    if(m_flag & RAS_BLENDERMAT)
        dolights = (m_flag &RAS_MULTILIGHT)!=0;
    else if(rasty->GetDrawingMode() < RAS_IRasterizer::KX_SOLID);
    else if(rasty->GetDrawingMode() == RAS_IRasterizer::KX_SHADOW);
    else
        dolights = m_light;
    
    return dolights;
}

bool RAS_IPolyMaterial::CastsShadows() const
{
    return (m_flag & RAS_CASTSHADOW) != 0;
}

bool RAS_IPolyMaterial::UsesObjectColor() const
{
    return !(m_flag & RAS_BLENDERGLSL);
}

unsigned int RAS_IPolyMaterial::m_newpolymatid = 0;