rbo.inl

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/**
 
    @file      rbo.inl
    @author    Khrapov
    @date      20.01.2020
    @copyright © Nick Khrapov, 2021. All right reserved.
 
**/
 
namespace qx
{
 
inline base_rbo::~base_rbo()
{
    if (m_nBuffer != std::numeric_limits<GLuint>::max())
    {
        glDeleteRenderbuffers(1, &m_nBuffer);
        m_nBuffer = std::numeric_limits<GLuint>::max();
    }
}
 
inline void base_rbo::Init(
    size_t nWidth,
    size_t nHeight,
    GLenum eInternalFormat,
    GLenum eAttachment,
    size_t nMultiSamples)
{
    m_nWidth          = nWidth;
    m_nHeight         = nHeight;
    m_eInternalFormat = eInternalFormat;
    m_eAttachmentType = eAttachment;
 
    // use a single renderbuffer object for both a depth and stencil buffer.
    if (nMultiSamples > 0)
    {
        glRenderbufferStorageMultisample(
            GL_RENDERBUFFER,
            static_cast<GLsizei>(nMultiSamples),
            eInternalFormat,
            static_cast<GLsizei>(nWidth),
            static_cast<GLsizei>(nHeight));
    }
    else
    {
        glRenderbufferStorage(
            GL_RENDERBUFFER,
            eInternalFormat,
            static_cast<GLsizei>(nWidth),
            static_cast<GLsizei>(nHeight));
    }
}
 
inline void base_rbo::Generate()
{
    glGenRenderbuffers(1, &m_nBuffer);
}
 
inline void base_rbo::Bind() const
{
    glBindRenderbuffer(GL_RENDERBUFFER, m_nBuffer);
}
 
inline void base_rbo::Unbind() const
{
    glBindRenderbuffer(GL_RENDERBUFFER, 0);
}
 
inline GLuint base_rbo::GetBufferName() const
{
    return m_nBuffer;
}
 
inline bool base_rbo::IsGenerated() const
{
    return m_nBuffer != std::numeric_limits<GLuint>::max();
}
 
inline size_t base_rbo::GetWidth() const
{
    return m_nWidth;
}
 
inline size_t base_rbo::GetHeight() const
{
    return m_nHeight;
}
 
inline GLenum base_rbo::GetInternalFormat() const
{
    return m_eInternalFormat;
}
 
inline GLenum base_rbo::GetAttachmentType() const
{
    return m_eAttachmentType;
}
 
 
} // namespace qx