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/**************************************************************************
*
* Copyright 2010 VMware, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/**
* Convert opaque VG object handles into pointers and vice versa.
* XXX This is not yet 64-bit safe! All VG handles are 32 bits in size.
*/
#ifndef HANDLE_H
#define HANDLE_H
#include "pipe/p_compiler.h"
#include "util/u_hash_table.h"
#include "util/u_pointer.h"
#include "VG/openvg.h"
#include "vg_context.h"
extern struct util_hash_table *handle_hash;
struct vg_mask_layer;
struct vg_font;
struct vg_image;
struct vg_paint;
struct path;
extern void
init_handles(void);
extern void
free_handles(void);
extern VGHandle
create_handle(void *object);
extern void
destroy_handle(VGHandle h);
static INLINE VGHandle
object_to_handle(struct vg_object *obj)
{
return obj ? obj->handle : VG_INVALID_HANDLE;
}
static INLINE VGHandle
image_to_handle(struct vg_image *img)
{
/* vg_image is derived from vg_object */
return object_to_handle((struct vg_object *) img);
}
static INLINE VGHandle
masklayer_to_handle(struct vg_mask_layer *mask)
{
/* vg_object is derived from vg_object */
return object_to_handle((struct vg_object *) mask);
}
static INLINE VGHandle
font_to_handle(struct vg_font *font)
{
return object_to_handle((struct vg_object *) font);
}
static INLINE VGHandle
paint_to_handle(struct vg_paint *paint)
{
return object_to_handle((struct vg_object *) paint);
}
static INLINE VGHandle
path_to_handle(struct path *path)
{
return object_to_handle((struct vg_object *) path);
}
static INLINE void *
handle_to_pointer(VGHandle h)
{
void *v = util_hash_table_get(handle_hash, intptr_to_pointer(h));
#ifdef DEBUG
if (v) {
struct vg_object *obj = (struct vg_object *) v;
assert(obj->handle == h);
}
#endif
return v;
}
static INLINE struct vg_font *
handle_to_font(VGHandle h)
{
return (struct vg_font *) handle_to_pointer(h);
}
static INLINE struct vg_image *
handle_to_image(VGHandle h)
{
return (struct vg_image *) handle_to_pointer(h);
}
static INLINE struct vg_mask_layer *
handle_to_masklayer(VGHandle h)
{
return (struct vg_mask_layer *) handle_to_pointer(h);
}
static INLINE struct vg_object *
handle_to_object(VGHandle h)
{
return (struct vg_object *) handle_to_pointer(h);
}
static INLINE struct vg_paint *
handle_to_paint(VGHandle h)
{
return (struct vg_paint *) handle_to_pointer(h);
}
static INLINE struct path *
handle_to_path(VGHandle h)
{
return (struct path *) handle_to_pointer(h);
}
#endif /* HANDLE_H */
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