#ifndef LP_TILE_CACHE_H
#define LP_TILE_CACHE_H
-#define TILE_CLEAR_OPTIMIZATION 1
-
#include "pipe/p_compiler.h"
#include "lp_tile_soa.h"
-struct llvmpipe_context;
-struct llvmpipe_tile_cache;
-
-
-/* If we need to support > 4096, just expand this to be a 64 bit
- * union, or consider tiling in Z as well.
- */
-union tile_address {
- struct {
- unsigned x:6; /* 4096 / TILE_SIZE */
- unsigned y:6; /* 4096 / TILE_SIZE */
- unsigned z:12; /* 4096 -- z not tiled */
- unsigned face:3;
- unsigned level:4;
- unsigned invalid:1;
- } bits;
- unsigned value;
-};
-
-
-struct llvmpipe_cached_tile
-{
- union tile_address addr;
- /** color in SOA format */
- uint8_t ALIGN16_ATTRIB color[TILE_SIZE*TILE_SIZE*NUM_CHANNELS];
-};
-
-#define NUM_ENTRIES 50
-
-
-/** 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 pipe_texture *texture; /**< if caching a texture */
- unsigned timestamp;
-
- struct llvmpipe_cached_tile entries[NUM_ENTRIES];
- uint clear_flags[(MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32];
- uint8_t clear_color[4]; /**< for color bufs */
- uint clear_val; /**< for z+stencil, or packed color clear value */
-
- struct pipe_transfer *tex_trans;
- void *tex_trans_map;
- int tex_face, tex_level, tex_z;
-
- struct llvmpipe_cached_tile *last_tile; /**< most recently retrieved tile */
-};
+struct llvmpipe_tile_cache; /* opaque */
extern struct llvmpipe_tile_cache *
uint clearValue);
extern void *
-lp_find_cached_tile(struct llvmpipe_tile_cache *tc,
- union tile_address addr );
-
-static INLINE const union tile_address
-tile_address( unsigned x,
- unsigned y,
- unsigned z,
- unsigned face,
- unsigned level )
-{
- union tile_address addr;
-
- addr.value = 0;
- addr.bits.x = x / TILE_SIZE;
- addr.bits.y = y / TILE_SIZE;
- addr.bits.z = z;
- addr.bits.face = face;
- addr.bits.level = level;
-
- return addr;
-}
-
-/* Quickly retrieve tile if it matches last lookup.
- */
-static INLINE void *
-lp_get_cached_tile(struct llvmpipe_tile_cache *tc,
- int x, int y )
-{
- union tile_address addr = tile_address( x, y, 0, 0, 0 );
-
- if (tc->last_tile->addr.value == addr.value)
- return &tc->last_tile->color;
-
- return lp_find_cached_tile( tc, addr );
-}
-
-
+lp_get_cached_tile(struct llvmpipe_tile_cache *tc,
+ unsigned x, unsigned y );
#endif /* LP_TILE_CACHE_H */