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shader_framebuffer.h

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// Copyright 1986-2008 by mental images GmbH, Fasanenstr. 81, D-10623 Berlin,
// Germany. All rights reserved.
// Author:      carsten
// Created:     27.02.08
// Module:      api
// Purpose:     mental ray C++ shader interface extensions



#ifndef SHADER_FRAMEBUFFER_H
#define SHADER_FRAMEBUFFER_H
#include "mi_shader_if.h"

namespace mi {
namespace shader_v3 {


class Framebuffer {
    public:
        virtual bool set(
            const char  *buffer, 
            const char  *param, 
            const       bool value) = 0;

        virtual bool set(
            const char  *buffer, 
            const char  *param, 
            const float value) = 0;

        virtual bool set(
            const char  *buffer, 
            const char  *param, 
            const int   value) = 0;

        virtual bool set(
            const char  *buffer, 
            const char  *param, 
            const char  *value) = 0;

        virtual bool get(
            const char  *buffer, 
            const char  *param, 
            bool        &value) const = 0;

        virtual bool get(
            const char  *buffer, 
            const char  *param, 
            float       &value) const = 0;

        virtual bool get(
            const char  *buffer, 
            const char  *param, 
            int         &value) const = 0;

        virtual bool get(
            const char  *buffer, 
            const char  *param, 
            const char  *&value) const = 0;

        virtual bool get_index(const char *buffer, size_t &index) const = 0;

        virtual bool reset() = 0;

        virtual void echo(FILE *) const = 0;

        virtual bool get_buffercount(size_t &buffercount) const = 0;

        virtual bool get_buffername(size_t num, const char *&name) const = 0;

        virtual bool remove(const char *buffer) = 0;
};

class Access_fb {
    public:
        Access_fb(
            miTag tag);

        ~Access_fb();

        const Framebuffer * operator->() const;
    private:
        Access_fb();
        Access_fb(const Access_fb &);
        const Access_fb & operator=(const Access_fb &);
        mi::shader_v3::Interface        *m_iface;
        const Framebuffer               *const m_fb;
        const miTag                     m_tag;
};



class Edit_fb {
    public:
        Edit_fb(
            miTag tag);

        ~Edit_fb();

        Framebuffer * operator->() const;
    private:
        Edit_fb();
        Edit_fb(const Edit_fb &);
        const Edit_fb & operator=(const Edit_fb &);
        mi::shader_v3::Interface        *m_iface;
        Framebuffer                     *const m_fb;
        const miTag                     m_tag;
};

inline Access_fb::Access_fb(
    miTag tag)
  : m_iface(mi_get_shader_interface())
  , m_fb(m_iface->accessFramebuffer(tag))
  , m_tag(tag)
{
}

inline Access_fb::~Access_fb()
{
    if (m_fb != 0) {
        m_iface->releaseFramebuffer(m_fb, m_tag);
    }
    m_iface->release();
}

inline const Framebuffer * Access_fb::operator->() const
{
    return m_fb;
}

inline Edit_fb::Edit_fb(
    miTag tag)
  : m_iface(mi_get_shader_interface())
  , m_fb(m_iface->editFramebuffer(tag))
  , m_tag(tag)
{
}

inline Edit_fb::~Edit_fb()
{
    if (m_fb != 0) {
        m_iface->releaseFramebuffer(m_fb, m_tag);
    }
    m_iface->release();
}

inline Framebuffer * Edit_fb::operator->() const
{
    return m_fb;
}


}}

#endif //SHADER_FRAMEBUFFER_H

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Copyright © 1986-2008 by mental images GmbH