#define TILE_SIZE 64
+/* 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
{
- int x, y; /**< pos of tile in window coords */
- int z, face, level; /**< Extra texture indexes */
+ union tile_address addr;
union {
float color[TILE_SIZE][TILE_SIZE][4];
uint color32[TILE_SIZE][TILE_SIZE];
} data;
};
+#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];
+ float clear_color[4]; /**< for color bufs */
+ uint clear_val; /**< for z+stencil, or packed color clear value */
+ boolean depth_stencil; /**< Is the surface a depth/stencil format? */
+
+ struct pipe_transfer *tex_trans;
+ void *tex_trans_map;
+ int tex_face, tex_level, tex_z;
+
+ struct llvmpipe_cached_tile tile; /**< scratch tile for clears */
+
+ struct llvmpipe_cached_tile *last_tile; /**< most recently retrieved tile */
+};
+
extern struct llvmpipe_tile_cache *
lp_create_tile_cache( struct pipe_screen *screen );
lp_tile_cache_unmap_transfers(struct llvmpipe_tile_cache *tc);
extern void
-lp_tile_cache_set_texture(struct pipe_context *pipe,
- struct llvmpipe_tile_cache *tc,
- struct pipe_texture *texture);
-
-extern void
-lp_flush_tile_cache(struct llvmpipe_context *llvmpipe,
- struct llvmpipe_tile_cache *tc);
+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 struct llvmpipe_cached_tile *
-lp_get_cached_tile(struct llvmpipe_context *llvmpipe,
- struct llvmpipe_tile_cache *tc, int x, int y);
+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 struct llvmpipe_cached_tile *
+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;
+
+ return lp_find_cached_tile( tc, addr );
+}
+
-extern const struct llvmpipe_cached_tile *
-lp_get_cached_tile_tex(struct llvmpipe_context *llvmpipe,
- struct llvmpipe_tile_cache *tc, int x, int y, int z,
- int face, int level);
#endif /* LP_TILE_CACHE_H */