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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 LP_TILE_CACHE_H
#define LP_TILE_CACHE_H
#include "pipe/p_compiler.h"
#include "lp_tile_soa.h"
enum llvmpipe_tile_status
{
LP_TILE_STATUS_UNDEFINED = 0,
LP_TILE_STATUS_CLEAR = 1,
LP_TILE_STATUS_DEFINED = 2
};
struct llvmpipe_cached_tile
{
enum llvmpipe_tile_status status;
/** color in SOA format */
uint8_t *color;
};
/** XXX move these */
#define MAX_WIDTH 2048
#define MAX_HEIGHT 2048
struct llvmpipe_tile_cache
{
struct pipe_screen *screen;
struct pipe_surface *surface; /**< the surface we're caching */
struct pipe_transfer *transfer;
void *transfer_map;
struct llvmpipe_cached_tile entries[MAX_WIDTH/TILE_SIZE][MAX_HEIGHT/TILE_SIZE];
uint8_t clear_color[4]; /**< for color bufs */
uint clear_val; /**< for z+stencil, or packed color clear value */
struct llvmpipe_cached_tile *last_tile; /**< most recently retrieved tile */
};
extern struct llvmpipe_tile_cache *
lp_create_tile_cache( struct pipe_screen *screen );
extern void
lp_destroy_tile_cache(struct llvmpipe_tile_cache *tc);
extern void
lp_tile_cache_set_surface(struct llvmpipe_tile_cache *tc,
struct pipe_surface *lps);
extern struct pipe_surface *
lp_tile_cache_get_surface(struct llvmpipe_tile_cache *tc);
extern void
lp_tile_cache_map_transfers(struct llvmpipe_tile_cache *tc);
extern void
lp_tile_cache_unmap_transfers(struct llvmpipe_tile_cache *tc);
extern void
lp_flush_tile_cache(struct llvmpipe_tile_cache *tc);
extern void
lp_tile_cache_clear(struct llvmpipe_tile_cache *tc, const float *rgba,
uint clearValue);
extern void *
lp_get_cached_tile(struct llvmpipe_tile_cache *tc,
unsigned x, unsigned y );
#endif /* LP_TILE_CACHE_H */
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