irendermodule.hxx

Go to the documentation of this file.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
#pragma once
 
#include <memory>
#include <utility>
 
namespace basegfx
{
    class B2IVector;
}
 
namespace canvas
{
    struct ISurface;
 
    struct Vertex
    {
        float r,g,b,a;
        float u,v;
        float x,y,z;
    };
 
    struct IRenderModule
    {
        enum class PrimitiveType
        {
            Unknown,
            Triangle,
            Quad
        };
 
        virtual ~IRenderModule() {}
 
        virtual void lock() const = 0;
 
        virtual void unlock() const = 0;
 
        virtual ::basegfx::B2IVector getPageSize() = 0;
 
        virtual std::shared_ptr<ISurface> createSurface( const ::basegfx::B2IVector& surfaceSize ) = 0;
 
        virtual void      beginPrimitive( PrimitiveType eType ) = 0;
 
        virtual void      endPrimitive() = 0;
 
        virtual void      pushVertex( const Vertex& vertex ) = 0;
 
        virtual bool      isError() = 0;
    };
 
    class RenderModuleGuard
    {
    public:
        explicit RenderModuleGuard( std::shared_ptr<IRenderModule> xRenderModule ) :
            mpRenderModule(std::move( xRenderModule ))
        {
            mpRenderModule->lock();
        }
 
        ~RenderModuleGuard()
        {
            mpRenderModule->unlock();
        }
 
        RenderModuleGuard(const RenderModuleGuard&) = delete;
        RenderModuleGuard& operator=( const RenderModuleGuard& ) = delete;
    private:
        const std::shared_ptr<IRenderModule> mpRenderModule;
    };
}
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */