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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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <directfb.h>
#include <core/core.h>
#include <core/coretypes.h>
#include <core/gfxcard.h>
#include <core/state.h>
#include <core/layers.h>
#include <core/layer_region.h>
#include <core/surface.h>
#include <core/system.h>
#include "idirectfbsurface.h"
#include "idirectfbsurface_layer.h"
#include <misc/util.h>
#include <direct/interface.h>
#include <direct/mem.h>
#include <gfx/util.h>
D_DEBUG_DOMAIN( Surface, "IDirectFBSurfaceL", "IDirectFBSurface_Layer Interface" );
/**********************************************************************************************************************/
static void
IDirectFBSurface_Layer_Destruct( IDirectFBSurface *thiz )
{
IDirectFBSurface_Layer_data *data = (IDirectFBSurface_Layer_data*) thiz->priv;
D_DEBUG_AT( Surface, "%s( %p )\n", __FUNCTION__, thiz );
dfb_layer_region_unref( data->region );
IDirectFBSurface_Destruct( thiz );
}
static DirectResult
IDirectFBSurface_Layer_Release( IDirectFBSurface *thiz )
{
DIRECT_INTERFACE_GET_DATA(IDirectFBSurface_Layer)
D_DEBUG_AT( Surface, "%s( %p )\n", __FUNCTION__, thiz );
if (--data->base.ref == 0)
IDirectFBSurface_Layer_Destruct( thiz );
return DFB_OK;
}
static DFBResult
IDirectFBSurface_Layer_Flip( IDirectFBSurface *thiz,
const DFBRegion *region,
DFBSurfaceFlipFlags flags )
{
DFBRegion reg;
DIRECT_INTERFACE_GET_DATA(IDirectFBSurface_Layer)
D_DEBUG_AT( Surface, "%s( %p, %p, 0x%08x )\n", __FUNCTION__, thiz, region, flags );
if (!data->base.surface)
return DFB_DESTROYED;
if (data->base.locked)
return DFB_LOCKED;
if (!data->base.area.current.w || !data->base.area.current.h ||
(region && (region->x1 > region->x2 || region->y1 > region->y2)))
return DFB_INVAREA;
IDirectFBSurface_StopAll( &data->base );
if (data->base.parent) {
IDirectFBSurface_data *parent_data;
DIRECT_INTERFACE_GET_DATA_FROM( data->base.parent, parent_data, IDirectFBSurface );
/* Signal end of sequence of operations. */
dfb_state_lock( &parent_data->state );
dfb_state_stop_drawing( &parent_data->state );
dfb_state_unlock( &parent_data->state );
}
dfb_region_from_rectangle( ®, &data->base.area.current );
if (region) {
DFBRegion clip = DFB_REGION_INIT_TRANSLATED( region,
data->base.area.wanted.x,
data->base.area.wanted.y );
if (!dfb_region_region_intersect( ®, &clip ))
return DFB_INVAREA;
}
D_DEBUG_AT( Surface, " -> FLIP %4d,%4d-%4dx%4d\n", DFB_RECTANGLE_VALS_FROM_REGION( ® ) );
return dfb_layer_region_flip_update( data->region, ®, flags );
}
static DFBResult
IDirectFBSurface_Layer_GetSubSurface( IDirectFBSurface *thiz,
const DFBRectangle *rect,
IDirectFBSurface **surface )
{
DFBResult ret;
DIRECT_INTERFACE_GET_DATA(IDirectFBSurface_Layer)
D_DEBUG_AT( Surface, "%s( %p )\n", __FUNCTION__, thiz );
/* Check arguments */
if (!data->base.surface)
return DFB_DESTROYED;
if (!surface)
return DFB_INVARG;
/* Allocate interface */
DIRECT_ALLOCATE_INTERFACE( *surface, IDirectFBSurface );
if (rect || data->base.limit_set) {
DFBRectangle wanted, granted;
/* Compute wanted rectangle */
if (rect) {
wanted = *rect;
wanted.x += data->base.area.wanted.x;
wanted.y += data->base.area.wanted.y;
if (wanted.w <= 0 || wanted.h <= 0) {
wanted.w = 0;
wanted.h = 0;
}
}
else {
wanted = data->base.area.wanted;
}
/* Compute granted rectangle */
granted = wanted;
dfb_rectangle_intersect( &granted, &data->base.area.granted );
/* Construct */
ret = IDirectFBSurface_Layer_Construct( *surface, thiz, &wanted, &granted,
data->region, data->base.caps |
DSCAPS_SUBSURFACE, data->base.core );
}
else {
/* Construct */
ret = IDirectFBSurface_Layer_Construct( *surface, thiz, NULL, NULL,
data->region, data->base.caps |
DSCAPS_SUBSURFACE, data->base.core );
}
return ret;
}
DFBResult
IDirectFBSurface_Layer_Construct( IDirectFBSurface *thiz,
IDirectFBSurface *parent,
DFBRectangle *wanted,
DFBRectangle *granted,
CoreLayerRegion *region,
DFBSurfaceCapabilities caps,
CoreDFB *core )
{
DFBResult ret;
CoreSurface *surface;
DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IDirectFBSurface_Layer);
D_DEBUG_AT( Surface, "%s( %p )\n", __FUNCTION__, thiz );
if (dfb_layer_region_ref( region ))
return DFB_FUSION;
ret = dfb_layer_region_get_surface( region, &surface );
if (ret) {
dfb_layer_region_unref( region );
DIRECT_DEALLOCATE_INTERFACE(thiz);
return ret;
}
ret = IDirectFBSurface_Construct( thiz, parent, wanted, granted, NULL,
surface, surface->config.caps | caps, core );
if (ret) {
dfb_surface_unref( surface );
dfb_layer_region_unref( region );
return ret;
}
dfb_surface_unref( surface );
data->region = region;
thiz->Release = IDirectFBSurface_Layer_Release;
thiz->Flip = IDirectFBSurface_Layer_Flip;
thiz->GetSubSurface = IDirectFBSurface_Layer_GetSubSurface;
return DFB_OK;
}
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