bwrender.h

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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 : ww3d2                                                        *
 *                                                                                             *
 *                     $Archive:: /Commando/Code/ww3d2/bwrender.h                             $*
 *                                                                                             *
 *              Original Author:: Jani Penttinen                                               *
 *                                                                                             *
 *                      $Author:: Greg_h                                                      $*
 *                                                                                             *
 *                     $Modtime:: 4/04/01 10:36a                                              $*
 *                                                                                             *
 *                    $Revision:: 2                                                           $*
 *                                                                                             *
 *---------------------------------------------------------------------------------------------*
 * Functions:                                                                                  *
 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
 
#if defined(_MSC_VER)
#pragma once
#endif
 
#ifndef BWRENDER_H
#define BWRENDER_H
 
 
#include "always.h"
#include "vector2.h"
#include "vector3.h"
#include "vector3i.h"

class BWRenderClass
{
    // Internal pixel buffer used by the triangle renderer
    // The buffer is not allocated or freed by this class.
    class Buffer
    {
        unsigned char* buffer;
        int scale;
        int minv;
        int maxv;
    public:
        Buffer(unsigned char* buffer, int scale);
        ~Buffer();
 
        void Set_H_Line(int start_x, int end_x, int y);
        void Fill(unsigned char c);
        inline int Scale() const { return scale; }
    } pixel_buffer;
 
    Vector2* vertices;
 
    void Render_Preprocessed_Triangle(Vector3& xcf,Vector3i& yci);
 
public:
    BWRenderClass(unsigned char* buffer, int scale);
    ~BWRenderClass();
 
    void Fill(unsigned char c);
    void Set_Vertex_Locations(Vector2* vertices,int count); // Warning! Contents are modified!
    void Render_Triangles(const unsigned long* indices,int index_count);
    void Render_Triangle_Strip(const unsigned long* indices,int index_count);
};
 
 
#endif //BWRENDER_H