RenderBuffer.cpp

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/*
        This file is part of Hikari, a library that allows developers
        to use Flash in their Ogre3D applications.
 
        Copyright (C) 2008 Adam J. Simmons
 
        This library is free software; you can redistribute it and/or
        modify it under the terms of the GNU Lesser General Public
        License as published by the Free Software Foundation; either
        version 2.1 of the License, or (at your option) any later version.
 
        This library 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
        Lesser General Public License for more details.
 
        You should have received a copy of the GNU Lesser General Public
        License along with this library; if not, write to the Free Software
        Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
/****************************************************************************************************
  ___ ___ .__ __                 .__ 
 /   |   \|__|  | _______ _______|__|
/    ~    \  |  |/ /\__  \\_  __ \  |
\    Y    /  |    <  / __ \|  | \/  |
 \___|_  /|__|__|_ \‍(____  /__|  |__|  v0.4
       \/         \/     \/          
 
 
* Zed Games PC Development Team - Jaime Crespillo Vilchez (jcrespillo@zed.com)
* Build: 0.1 - Date: 13/10/2008
* Undocked version of Hikari Lib
* Brief: getter method for buffer implemented
******************************************************************************************************/
#include "External/hikari/impl\RenderBuffer.h"
#include "conio.h"
using namespace Hikari::Impl;
 
RenderBuffer::RenderBuffer(int width, int height) : width(0), height(0), buffer(0), rowSpan(0)
{
        reserve(width, height);
}
 
RenderBuffer::~RenderBuffer()
{
        if(buffer)
  {
                delete[] buffer;
    buffer = 0;
  }
}
 
void RenderBuffer::reserve(int width, int height)
{
        if(this->width != width || this->height != height)
        {
                this->width = width;
                this->height = height;
 
                rowSpan = width * 4;
 
                if(buffer)
    {
                        delete[] buffer;
      buffer = 0;
    }
 
                buffer = new unsigned char[width * height * 4];
                memset(buffer, 0, width * height * 4);
        }
}
 
void RenderBuffer::copyFrom(unsigned char* srcBuffer, int srcRowSpan)
{
  if (getBuffer())
  {
          for(int row = 0; row < height; row++)
                  memcpy(getBuffer() + row * rowSpan, srcBuffer + row * srcRowSpan, rowSpan);
  }
}
 
void RenderBuffer::copyArea(RECT srcRect, unsigned char* srcBuffer, int srcRowSpan)
{
  if (getBuffer())
  {
    if(srcRect.right <= width && srcRect.bottom <= height && srcRect.left>=0 && srcRect.top>=0)
          {
                  int srcWidth = srcRect.right - srcRect.left;
                  int srcHeight = srcRect.bottom - srcRect.top;
 
                  for(int row = 0; row < srcHeight; row++){
                          unsigned char* destinyBuf = getBuffer() + (row + srcRect.top) * rowSpan + (srcRect.left * 4);
                          unsigned char* sourceBuf = srcBuffer + row * srcRowSpan;
                          int sizeBuf = srcWidth * 4;
                          memcpy(destinyBuf, sourceBuf, sizeBuf);
                  }
          }
  }
}
 
void RenderBuffer::blitBGR(unsigned char* destBuffer, int destRowSpan, int destDepth)
{
  if (getBuffer())
  {
    if(destDepth == 3)
    {
            for(int row = 0; row < height; row++)
                    for(int col = 0; col < width; col++)
                            memcpy(destBuffer + row * destRowSpan + col * 3, getBuffer() + row * rowSpan + col * 4, 3);
    }
    else if(destDepth == 4)
    {
            for(int row = 0; row < height; row++)
                    memcpy(destBuffer + row * destRowSpan, getBuffer() + row * rowSpan, rowSpan);
    }
  }
}