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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.
*/
#include <config.h>
#include <string.h>
#include <stdio.h>
#include <directfb.h>
#include <core/layers.h>
#include <misc/conf.h>
#include "unichrome.h"
#include "uc_overlay.h"
#include "vidregs.h"
#include "mmio.h"
/* primary layer hooks */
#define OSD_OPTIONS (DLOP_ALPHACHANNEL | DLOP_SRC_COLORKEY | DLOP_OPACITY)
DisplayLayerFuncs ucOldPrimaryFuncs;
void *ucOldPrimaryDriverData;
static DFBResult
osdInitLayer( CoreLayer *layer,
void *driver_data,
void *layer_data,
DFBDisplayLayerDescription *description,
DFBDisplayLayerConfig *config,
DFBColorAdjustment *adjustment )
{
DFBResult ret;
/* call the original initialization function first */
ret = ucOldPrimaryFuncs.InitLayer( layer,
ucOldPrimaryDriverData,
layer_data, description,
config, adjustment );
if (ret)
return ret;
/* set name */
snprintf(description->name,
DFB_DISPLAY_LAYER_DESC_NAME_LENGTH, "VIA CLE266 Graphics");
/* add support for options */
config->flags |= DLCONF_OPTIONS;
config->pixelformat = dfb_config->mode.format ?
dfb_config->mode.format : DSPF_ARGB;
config->options = DLOP_ALPHACHANNEL;
/* add some capabilities */
description->caps |= DLCAPS_ALPHACHANNEL |
DLCAPS_OPACITY | DLCAPS_SRC_COLORKEY;
return DFB_OK;
}
static DFBResult
osdTestRegion( CoreLayer *layer,
void *driver_data,
void *layer_data,
CoreLayerRegionConfig *config,
CoreLayerRegionConfigFlags *failed )
{
DFBResult ret;
CoreLayerRegionConfigFlags fail = 0;
DFBDisplayLayerOptions options = config->options;
/* remove options before calling the original function */
config->options = DLOP_NONE;
/* call the original function */
ret = ucOldPrimaryFuncs.TestRegion( layer, ucOldPrimaryDriverData,
layer_data, config, &fail );
/* check options if specified */
if (options) {
/* any unsupported option wanted? */
if (options & ~OSD_OPTIONS)
fail |= CLRCF_OPTIONS;
/* opacity and alpha channel cannot be used at once */
if ((options & (DLOP_OPACITY | DLOP_ALPHACHANNEL)) ==
(DLOP_OPACITY | DLOP_ALPHACHANNEL))
{
fail |= CLRCF_OPTIONS;
}
}
/* restore options */
config->options = options;
if (failed)
*failed = fail;
if (fail)
return DFB_UNSUPPORTED;
return ret;
}
static DFBResult
osdSetRegion( CoreLayer *layer,
void *driver_data,
void *layer_data,
void *region_data,
CoreLayerRegionConfig *config,
CoreLayerRegionConfigFlags updated,
CoreSurface *surface,
CorePalette *palette,
CoreSurfaceBufferLock *lock )
{
DFBResult ret;
UcDriverData *ucdrv = (UcDriverData*) driver_data;
/* call the original function */
ret = ucOldPrimaryFuncs.SetRegion( layer, ucOldPrimaryDriverData,
layer_data, region_data,
config, updated, surface,
palette, lock );
if (ret)
return ret;
uc_ovl_vcmd_wait(ucdrv->hwregs);
/* select pixel based or global alpha */
if (config->options & DLOP_ALPHACHANNEL)
VIDEO_OUT(ucdrv->hwregs, V_ALPHA_CONTROL, uc_ovl_map_alpha(-1));
else if (config->options & DLOP_OPACITY)
VIDEO_OUT(ucdrv->hwregs, V_ALPHA_CONTROL, uc_ovl_map_alpha(config->opacity));
else
VIDEO_OUT(ucdrv->hwregs, V_ALPHA_CONTROL, uc_ovl_map_alpha(0xff));
VIDEO_OUT(ucdrv->hwregs, V_COMPOSE_MODE, V1_COMMAND_FIRE);
return DFB_OK;
}
DisplayLayerFuncs ucPrimaryFuncs = {
.InitLayer = osdInitLayer,
.TestRegion = osdTestRegion,
.SetRegion = osdSetRegion,
};
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