97 lines
2.1 KiB
C++
97 lines
2.1 KiB
C++
/*
|
|
* \brief Framebuffer session interface
|
|
* \author Norman Feske
|
|
* \date 2006-07-10
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2006-2012 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
#ifndef _INCLUDE__FRAMEBUFFER_SESSION__FRAMEBUFFER_SESSION_H_
|
|
#define _INCLUDE__FRAMEBUFFER_SESSION__FRAMEBUFFER_SESSION_H_
|
|
|
|
#include <dataspace/capability.h>
|
|
#include <session/session.h>
|
|
|
|
namespace Framebuffer {
|
|
|
|
struct Mode
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* Pixel formats
|
|
*/
|
|
enum Format { INVALID, RGB565 };
|
|
|
|
static Genode::size_t bytes_per_pixel(Format format)
|
|
{
|
|
if (format == RGB565) return 2;
|
|
return 0;
|
|
}
|
|
|
|
private:
|
|
|
|
int _width, _height;
|
|
Format _format;
|
|
|
|
public:
|
|
|
|
Mode() : _width(0), _height(0), _format(INVALID) { }
|
|
|
|
Mode(int width, int height, Format format)
|
|
: _width(width), _height(height), _format(format) { }
|
|
|
|
int width() const { return _width; }
|
|
int height() const { return _height; }
|
|
Format format() const { return _format; }
|
|
|
|
/**
|
|
* Return number of bytes per pixel
|
|
*/
|
|
Genode::size_t bytes_per_pixel() const {
|
|
return bytes_per_pixel(_format); }
|
|
};
|
|
|
|
struct Session : Genode::Session
|
|
{
|
|
static const char *service_name() { return "Framebuffer"; }
|
|
|
|
virtual ~Session() { }
|
|
|
|
/**
|
|
* Request dataspace representing the logical frame buffer
|
|
*/
|
|
virtual Genode::Dataspace_capability dataspace() = 0;
|
|
|
|
/**
|
|
* Request current screen mode properties
|
|
*/
|
|
virtual Mode mode() = 0;
|
|
|
|
/**
|
|
* Flush specified pixel region
|
|
*
|
|
* \param x,y,w,h region to be updated on physical frame buffer
|
|
*/
|
|
virtual void refresh(int x, int y, int w, int h) = 0;
|
|
|
|
|
|
/*********************
|
|
** RPC declaration **
|
|
*********************/
|
|
|
|
GENODE_RPC(Rpc_dataspace, Genode::Dataspace_capability, dataspace);
|
|
GENODE_RPC(Rpc_mode, Mode, mode);
|
|
GENODE_RPC(Rpc_refresh, void, refresh, int, int, int, int);
|
|
|
|
GENODE_RPC_INTERFACE(Rpc_dataspace, Rpc_mode, Rpc_refresh);
|
|
};
|
|
}
|
|
|
|
#endif /* _INCLUDE__FRAMEBUFFER_SESSION__FRAMEBUFFER_SESSION_H_ */
|