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/*
(c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Hundt <andi@fischlustig.de>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef __DFB__CORE__SCREENS_H__
#define __DFB__CORE__SCREENS_H__
#include <directfb.h>
#include <core/coretypes.h>
typedef DFBEnumerationResult (*CoreScreenCallback) (CoreScreen *screen,
void *ctx);
typedef enum {
CMSF_NONE = 0x00000000, /* none of these */
CMSF_DIMENSION = 0x00000001, /* dimension is set */
CMSF_ALL = 0x00000001, /* all of these */
} CoreMixerStateFlags;
typedef struct {
CoreMixerStateFlags flags;
DFBDimension dimension;
} CoreMixerState;
typedef struct {
/** Driver Control **/
/*
* Return size of screen data (shared memory).
*/
int (*ScreenDataSize)(void);
/*
* Called once by the master to initialize screen data and reset hardware.
* Driver has to fill the screen description.
*/
DFBResult (*InitScreen) ( CoreScreen *screen,
CoreGraphicsDevice *device,
void *driver_data,
void *screen_data,
DFBScreenDescription *description );
/*
* Called once by the master for each mixer.
* Driver fills description and default config.
*/
DFBResult (*InitMixer) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int mixer,
DFBScreenMixerDescription *description,
DFBScreenMixerConfig *config );
/*
* Called once by the master for each encoder.
* Driver fills description and default config.
*/
DFBResult (*InitEncoder) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int encoder,
DFBScreenEncoderDescription *description,
DFBScreenEncoderConfig *config );
/*
* Called once by the master for each output.
* Driver fills description and default config.
*/
DFBResult (*InitOutput) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int output,
DFBScreenOutputDescription *description,
DFBScreenOutputConfig *config );
/** Power management **/
/*
* Switch between "on", "standby", "suspend" and "off".
*/
DFBResult (*SetPowerMode) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
DFBScreenPowerMode mode );
/** Synchronization **/
/*
* Wait for the vertical retrace.
*/
DFBResult (*WaitVSync) ( CoreScreen *screen,
void *driver_data,
void *screen_data );
/** Mixer configuration **/
/*
* Test if configuration is supported. Store failing fields in 'failed'.
*/
DFBResult (*TestMixerConfig)( CoreScreen *screen,
void *driver_data,
void *screen_data,
int mixer,
const DFBScreenMixerConfig *config,
DFBScreenMixerConfigFlags *failed );
/*
* Set new configuration.
*/
DFBResult (*SetMixerConfig) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int mixer,
const DFBScreenMixerConfig *config );
/** Encoder configuration **/
/*
* Test if configuration is supported. Store failing fields in 'failed'.
*/
DFBResult (*TestEncoderConfig)( CoreScreen *screen,
void *driver_data,
void *screen_data,
int encoder,
const DFBScreenEncoderConfig *config,
DFBScreenEncoderConfigFlags *failed );
/*
* Set new configuration.
*/
DFBResult (*SetEncoderConfig) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int encoder,
const DFBScreenEncoderConfig *config );
/** Output configuration **/
/*
* Test if configuration is supported. Store failing fields in 'failed'.
*/
DFBResult (*TestOutputConfig)( CoreScreen *screen,
void *driver_data,
void *screen_data,
int output,
const DFBScreenOutputConfig *config,
DFBScreenOutputConfigFlags *failed );
/*
* Set new configuration.
*/
DFBResult (*SetOutputConfig) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int output,
const DFBScreenOutputConfig *config );
/** Screen configuration **/
/*
* Return the screen size, e.g. as a basis for positioning a layer.
*
* This function might be replaced soon.
*/
DFBResult (*GetScreenSize) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int *ret_width,
int *ret_height );
/** States **/
DFBResult (*GetMixerState) ( CoreScreen *screen,
void *driver_data,
void *screen_data,
int mixer,
CoreMixerState *ret_state );
} ScreenFuncs;
/*
* Add a screen to a graphics device by pointing to a table containing
* driver functions. The driver data will be passed to these functions.
*/
CoreScreen *dfb_screens_register( CoreGraphicsDevice *device,
void *driver_data,
ScreenFuncs *funcs );
/*
* Replace functions of the primary screen implementation by passing
* an alternative driver function table. All non-NULL functions in the new
* table replace the functions in the original function table.
* The original function table is written to 'primary_funcs' before to allow
* drivers to use existing functionality from the original implementation.
*/
CoreScreen *dfb_screens_hook_primary( CoreGraphicsDevice *device,
void *driver_data,
ScreenFuncs *funcs,
ScreenFuncs *primary_funcs,
void **primary_driver_data );
/*
* Replace the default implementation for the primary screen.
*/
CoreScreen *dfb_screens_register_primary( CoreGraphicsDevice *device,
void *driver_data,
ScreenFuncs *funcs );
/*
* Enumerate all registered screens by invoking the callback for each screen.
*/
void dfb_screens_enumerate( CoreScreenCallback callback,
void *ctx );
/*
* Returns the screen with the specified ID.
*/
CoreScreen *dfb_screens_at( DFBScreenID screen_id );
CoreScreen *dfb_screens_at_translated( DFBScreenID screen_id );
/*
* Return the (translated) ID of the specified screen.
*/
DFBScreenID dfb_screen_id_translated( CoreScreen *screen );
#endif
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