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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 <direct/debug.h>
#include <fusion/conf.h>
#include <fusion/shmalloc.h>
#include <fusion/shm/pool.h>
#include <core/core.h>
#include <core/surface_pool.h>
#include <misc/conf.h>
/**********************************************************************************************************************/
typedef struct {
FusionSHMPoolShared *shmpool;
} SharedPoolData;
typedef struct {
CoreDFB *core;
FusionWorld *world;
} SharedPoolLocalData;
typedef struct {
void *addr;
int pitch;
int size;
} SharedAllocationData;
/**********************************************************************************************************************/
static int
sharedPoolDataSize( void )
{
return sizeof(SharedPoolData);
}
static int
sharedPoolLocalDataSize( void )
{
return sizeof(SharedPoolLocalData);
}
static int
sharedAllocationDataSize( void )
{
return sizeof(SharedAllocationData);
}
static DFBResult
sharedInitPool( CoreDFB *core,
CoreSurfacePool *pool,
void *pool_data,
void *pool_local,
void *system_data,
CoreSurfacePoolDescription *ret_desc )
{
DFBResult ret;
SharedPoolData *data = pool_data;
SharedPoolLocalData *local = pool_local;
D_MAGIC_ASSERT( pool, CoreSurfacePool );
D_ASSERT( ret_desc != NULL );
local->core = core;
local->world = dfb_core_world( core );
ret = fusion_shm_pool_create( local->world, "Surface Memory Pool", dfb_config->surface_shmpool_size,
fusion_config->debugshm, &data->shmpool );
if (ret)
return ret;
ret_desc->caps = CSPCAPS_NONE;
ret_desc->access[CSAID_CPU] = CSAF_READ | CSAF_WRITE | CSAF_SHARED;
ret_desc->access[CSAID_LAYER0] = CSAF_READ | CSAF_SHARED;
ret_desc->access[CSAID_LAYER1] = CSAF_READ | CSAF_SHARED;
ret_desc->types = CSTF_LAYER | CSTF_WINDOW | CSTF_CURSOR | CSTF_FONT | CSTF_SHARED | CSTF_INTERNAL;
ret_desc->priority = CSPP_DEFAULT;
snprintf( ret_desc->name, DFB_SURFACE_POOL_DESC_NAME_LENGTH, "Shared Memory" );
return DFB_OK;
}
static DFBResult
sharedDestroyPool( CoreSurfacePool *pool,
void *pool_data,
void *pool_local )
{
SharedPoolData *data = pool_data;
SharedPoolLocalData *local = pool_local;
D_MAGIC_ASSERT( pool, CoreSurfacePool );
fusion_shm_pool_destroy( local->world, data->shmpool );
return DFB_OK;
}
static DFBResult
sharedAllocateBuffer( CoreSurfacePool *pool,
void *pool_data,
void *pool_local,
CoreSurfaceBuffer *buffer,
CoreSurfaceAllocation *allocation,
void *alloc_data )
{
CoreSurface *surface;
SharedPoolData *data = pool_data;
SharedAllocationData *alloc = alloc_data;
D_MAGIC_ASSERT( pool, CoreSurfacePool );
D_MAGIC_ASSERT( buffer, CoreSurfaceBuffer );
surface = buffer->surface;
D_MAGIC_ASSERT( surface, CoreSurface );
dfb_surface_calc_buffer_size( surface, 8, 0, &alloc->pitch, &alloc->size );
alloc->addr = SHMALLOC( data->shmpool, alloc->size );
if (!alloc->addr)
return D_OOSHM();
allocation->flags = CSALF_VOLATILE;
allocation->size = alloc->size;
return DFB_OK;
}
static DFBResult
sharedDeallocateBuffer( CoreSurfacePool *pool,
void *pool_data,
void *pool_local,
CoreSurfaceBuffer *buffer,
CoreSurfaceAllocation *allocation,
void *alloc_data )
{
SharedPoolData *data = pool_data;
SharedAllocationData *alloc = alloc_data;
D_MAGIC_ASSERT( pool, CoreSurfacePool );
D_MAGIC_ASSERT( buffer, CoreSurfaceBuffer );
SHFREE( data->shmpool, alloc->addr );
return DFB_OK;
}
static DFBResult
sharedLock( CoreSurfacePool *pool,
void *pool_data,
void *pool_local,
CoreSurfaceAllocation *allocation,
void *alloc_data,
CoreSurfaceBufferLock *lock )
{
SharedAllocationData *alloc = alloc_data;
D_MAGIC_ASSERT( pool, CoreSurfacePool );
D_MAGIC_ASSERT( allocation, CoreSurfaceAllocation );
D_MAGIC_ASSERT( lock, CoreSurfaceBufferLock );
lock->addr = alloc->addr;
lock->pitch = alloc->pitch;
return DFB_OK;
}
static DFBResult
sharedUnlock( CoreSurfacePool *pool,
void *pool_data,
void *pool_local,
CoreSurfaceAllocation *allocation,
void *alloc_data,
CoreSurfaceBufferLock *lock )
{
D_MAGIC_ASSERT( pool, CoreSurfacePool );
D_MAGIC_ASSERT( allocation, CoreSurfaceAllocation );
D_MAGIC_ASSERT( lock, CoreSurfaceBufferLock );
return DFB_OK;
}
const SurfacePoolFuncs sharedSurfacePoolFuncs = {
.PoolDataSize = sharedPoolDataSize,
.PoolLocalDataSize = sharedPoolLocalDataSize,
.AllocationDataSize = sharedAllocationDataSize,
.InitPool = sharedInitPool,
.DestroyPool = sharedDestroyPool,
.AllocateBuffer = sharedAllocateBuffer,
.DeallocateBuffer = sharedDeallocateBuffer,
.Lock = sharedLock,
.Unlock = sharedUnlock,
};
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