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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_screen.h"
#include "p_winsys.h"
#ifdef __cplusplus
extern "C" {
#endif
/* XXX: these are a kludge. will fix when all surfaces are views into
* textures, and free-floating winsys surfaces go away.
*/
static INLINE void *
pipe_surface_map( struct pipe_surface *surf, unsigned flags )
{
if (surf->texture) {
struct pipe_screen *screen = surf->texture->screen;
return surf->texture->screen->surface_map( screen, surf, flags );
}
else {
struct pipe_winsys *winsys = surf->winsys;
char *map = (char *)winsys->buffer_map( winsys, surf->buffer, flags );
if (map == NULL)
return NULL;
return (void *)(map + surf->offset);
}
}
static INLINE void
pipe_surface_unmap( struct pipe_surface *surf )
{
if (surf->texture) {
struct pipe_screen *screen = surf->texture->screen;
surf->texture->screen->surface_unmap( screen, surf );
}
else {
struct pipe_winsys *winsys = surf->winsys;
winsys->buffer_unmap( winsys, surf->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) {
assert(surf->refcount);
surf->refcount++;
}
if (*ptr) {
assert((*ptr)->refcount);
/* There are currently two sorts of surfaces... This needs to be
* fixed so that all surfaces are views into a texture.
*/
if ((*ptr)->texture) {
struct pipe_screen *screen = (*ptr)->texture->screen;
screen->tex_surface_release( screen, ptr );
}
else {
struct pipe_winsys *winsys = (*ptr)->winsys;
winsys->surface_release(winsys, ptr);
}
assert(!*ptr);
}
*ptr = surf;
}
/* XXX: thread safety issues!
*/
static INLINE void
winsys_buffer_reference(struct pipe_winsys *winsys,
struct pipe_buffer **ptr,
struct pipe_buffer *buf)
{
if (buf) {
assert(buf->refcount);
buf->refcount++;
}
if (*ptr) {
assert((*ptr)->refcount);
if(--(*ptr)->refcount == 0)
winsys->buffer_destroy( winsys, *ptr );
}
*ptr = buf;
}
/**
* \sa pipe_surface_reference
*/
static INLINE void
pipe_texture_reference(struct pipe_texture **ptr,
struct pipe_texture *pt)
{
assert(ptr);
if (pt) {
assert(pt->refcount);
pt->refcount++;
}
if (*ptr) {
struct pipe_screen *screen = (*ptr)->screen;
assert(screen);
assert((*ptr)->refcount);
screen->texture_release(screen, ptr);
assert(!*ptr);
}
*ptr = pt;
}
static INLINE void
pipe_texture_release(struct pipe_texture **ptr)
{
struct pipe_screen *screen;
assert(ptr);
screen = (*ptr)->screen;
assert((*ptr)->refcount);
screen->texture_release(screen, ptr);
*ptr = NULL;
}
/**
* Convenience wrappers for winsys buffer functions.
*/
static INLINE struct pipe_buffer *
pipe_buffer_create( struct pipe_screen *screen,
unsigned alignment, unsigned usage, unsigned size )
{
return screen->winsys->buffer_create(screen->winsys, alignment, usage, size);
}
static INLINE struct pipe_buffer *
pipe_user_buffer_create( struct pipe_screen *screen, void *ptr, unsigned size )
{
return screen->winsys->user_buffer_create(screen->winsys, ptr, size);
}
static INLINE void *
pipe_buffer_map(struct pipe_screen *screen,
struct pipe_buffer *buf,
unsigned usage)
{
return screen->winsys->buffer_map(screen->winsys, buf, usage);
}
static INLINE void
pipe_buffer_unmap(struct pipe_screen *screen,
struct pipe_buffer *buf)
{
screen->winsys->buffer_unmap(screen->winsys, buf);
}
/* XXX when we're using this everywhere, get rid of
* winsys_buffer_reference() above.
*/
static INLINE void
pipe_buffer_reference(struct pipe_screen *screen,
struct pipe_buffer **ptr,
struct pipe_buffer *buf)
{
winsys_buffer_reference(screen->winsys, ptr, buf);
}
#ifdef __cplusplus
}
#endif
#endif /* P_INLINES_H */
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