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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
#ifndef P_INLINES_H
#define P_INLINES_H
#include "p_context.h"
#include "p_defines.h"
#include "p_winsys.h"
#ifdef __cplusplus
extern "C" {
#endif
static INLINE void *
pipe_surface_map(struct pipe_surface *surface)
{
return (char *)surface->winsys->buffer_map( surface->winsys, surface->buffer,
PIPE_BUFFER_USAGE_CPU_WRITE |
PIPE_BUFFER_USAGE_CPU_READ )
+ surface->offset;
}
static INLINE void
pipe_surface_unmap(struct pipe_surface *surface)
{
surface->winsys->buffer_unmap( surface->winsys, surface->buffer );
}
/**
* Set 'ptr' to point to 'surf' and update reference counting.
* The old thing pointed to, if any, will be unreferenced first.
* 'surf' may be NULL.
*/
static INLINE void
pipe_surface_reference(struct pipe_surface **ptr, struct pipe_surface *surf)
{
/* bump the refcount first */
if (surf)
surf->refcount++;
if (*ptr /* && --(*ptr)->refcount == 0 */) {
struct pipe_winsys *winsys = (*ptr)->winsys;
winsys->surface_release(winsys, ptr);
assert(!*ptr);
}
*ptr = surf;
}
/* XXX: thread safety issues!
*/
static INLINE void
pipe_buffer_reference(struct pipe_winsys *winsys,
struct pipe_buffer **ptr,
struct pipe_buffer *buf)
{
if (buf)
buf->refcount++;
if (*ptr && --(*ptr)->refcount == 0)
winsys->buffer_destroy( winsys, *ptr );
*ptr = buf;
}
/**
* \sa pipe_surface_reference
*/
static INLINE void
pipe_texture_reference(struct pipe_context *pipe, struct pipe_texture **ptr,
struct pipe_texture *pt)
{
assert(ptr);
if (pt)
pt->refcount++;
if (*ptr) {
pipe->texture_release(pipe, ptr);
assert(!*ptr);
}
*ptr = pt;
}
#ifdef __cplusplus
}
#endif
#endif /* P_INLINES_H */
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