RenderImage.cpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//

// Headers
#include <SFML/Graphics/RenderImage.hpp>
#include <SFML/Graphics/RenderImageImplFBO.hpp>
#include <SFML/Graphics/RenderImageImplPBuffer.hpp>
#include <SFML/System/Err.hpp>


namespace sf
{
RenderImage::RenderImage() :
myRenderImage(NULL)
{

}


RenderImage::~RenderImage()
{
    delete myRenderImage;
}


bool RenderImage::Create(unsigned int width, unsigned int height, bool depthBuffer)
{
    // Make sure that render-images are supported
    if (!IsAvailable())
    {
        Err() << "Impossible to create render image (your system doesn't support this feature)" << std::endl;
        return false;
    }

    // Create the image
    if (!myImage.Create(width, height))
    {
        Err() << "Impossible to create render image (failed to create the target image)" << std::endl;
        return false;
    }

    // We disable smoothing by default for render images
    SetSmooth(false);

    // Create the implementation
    delete myRenderImage;
    if (priv::RenderImageImplFBO::IsSupported())
    {
        // Use FBO
        myRenderImage = new priv::RenderImageImplFBO;
    }
    else if (priv::RenderImageImplPBuffer::IsSupported())
    {
        // Use P-Buffer
        myRenderImage = new priv::RenderImageImplPBuffer;
    }

    // Initialize the render image
    if (!myRenderImage->Create(width, height, myImage.myTexture, depthBuffer))
        return false;

    // We can now initialize the render target part
    RenderTarget::Initialize();

    return true;
}


void RenderImage::SetSmooth(bool smooth)
{
    myImage.SetSmooth(smooth);
}


bool RenderImage::IsSmooth() const
{
    return myImage.IsSmooth();
}


bool RenderImage::SetActive(bool active)
{
    return myRenderImage && myRenderImage->Activate(active);
}


void RenderImage::Display()
{
    // Update the target image
    if (myRenderImage)
    {
        myRenderImage->UpdateTexture(myImage.myTexture);

        myImage.myPixelsFlipped  = true;
        myImage.myArrayUpdated   = false;
        myImage.myTextureUpdated = true;
    }
}


unsigned int RenderImage::GetWidth() const
{
    return myImage.GetWidth();
}


unsigned int RenderImage::GetHeight() const
{
    return myImage.GetHeight();
}


const Image& RenderImage::GetImage() const
{
    return myImage;
}


bool RenderImage::IsAvailable()
{
    return priv::RenderImageImplFBO::IsSupported() ||
           priv::RenderImageImplPBuffer::IsSupported();
}


bool RenderImage::Activate(bool active)
{
    return SetActive(active);
}

} // namespace sf

 ::  Copyright © 2007-2008 Laurent Gomila, all rights reserved  ::  Documentation generated by doxygen 1.5.2  ::