| /************************************************************************** |
| * |
| * 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 SP_TILE_CACHE_H |
| #define SP_TILE_CACHE_H |
| |
| |
| #include "pipe/p_compiler.h" |
| #include "sp_texture.h" |
| |
| |
| struct softpipe_tile_cache; |
| |
| |
| /** |
| * Cache tile size (width and height). This needs to be a power of two. |
| */ |
| #define TILE_SIZE_LOG2 6 |
| #define TILE_SIZE (1 << TILE_SIZE_LOG2) |
| |
| |
| #define TILE_ADDR_BITS (SP_MAX_TEXTURE_2D_LEVELS - 1 - TILE_SIZE_LOG2) |
| |
| |
| /** |
| * Surface tile address as a union for fast compares. |
| */ |
| union tile_address { |
| struct { |
| unsigned x:TILE_ADDR_BITS; /* 16K / TILE_SIZE */ |
| unsigned y:TILE_ADDR_BITS; /* 16K / TILE_SIZE */ |
| unsigned invalid:1; |
| unsigned pad:15; |
| } bits; |
| unsigned value; |
| }; |
| |
| |
| struct softpipe_cached_tile |
| { |
| union { |
| float color[TILE_SIZE][TILE_SIZE][4]; |
| uint color32[TILE_SIZE][TILE_SIZE]; |
| uint depth32[TILE_SIZE][TILE_SIZE]; |
| ushort depth16[TILE_SIZE][TILE_SIZE]; |
| ubyte stencil8[TILE_SIZE][TILE_SIZE]; |
| uint colorui128[TILE_SIZE][TILE_SIZE][4]; |
| int colori128[TILE_SIZE][TILE_SIZE][4]; |
| uint64_t depth64[TILE_SIZE][TILE_SIZE]; |
| ubyte any[1]; |
| } data; |
| }; |
| |
| #define NUM_ENTRIES 50 |
| |
| |
| struct softpipe_tile_cache |
| { |
| struct pipe_context *pipe; |
| struct pipe_surface *surface; /**< the surface we're caching */ |
| struct pipe_transfer *transfer; |
| void *transfer_map; |
| |
| union tile_address tile_addrs[NUM_ENTRIES]; |
| struct softpipe_cached_tile *entries[NUM_ENTRIES]; |
| uint clear_flags[(MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32]; |
| union pipe_color_union clear_color; /**< for color bufs */ |
| uint64_t clear_val; /**< for z+stencil */ |
| boolean depth_stencil; /**< Is the surface a depth/stencil format? */ |
| |
| struct softpipe_cached_tile *tile; /**< scratch tile for clears */ |
| |
| union tile_address last_tile_addr; |
| struct softpipe_cached_tile *last_tile; /**< most recently retrieved tile */ |
| }; |
| |
| |
| extern struct softpipe_tile_cache * |
| sp_create_tile_cache( struct pipe_context *pipe ); |
| |
| extern void |
| sp_destroy_tile_cache(struct softpipe_tile_cache *tc); |
| |
| extern void |
| sp_tile_cache_set_surface(struct softpipe_tile_cache *tc, |
| struct pipe_surface *sps); |
| |
| extern struct pipe_surface * |
| sp_tile_cache_get_surface(struct softpipe_tile_cache *tc); |
| |
| extern void |
| sp_tile_cache_map_transfers(struct softpipe_tile_cache *tc); |
| |
| extern void |
| sp_tile_cache_unmap_transfers(struct softpipe_tile_cache *tc); |
| |
| extern void |
| sp_flush_tile_cache(struct softpipe_tile_cache *tc); |
| |
| extern void |
| sp_tile_cache_clear(struct softpipe_tile_cache *tc, |
| const union pipe_color_union *color, |
| uint64_t clearValue); |
| |
| extern struct softpipe_cached_tile * |
| sp_find_cached_tile(struct softpipe_tile_cache *tc, |
| union tile_address addr ); |
| |
| |
| static INLINE union tile_address |
| tile_address( unsigned x, |
| unsigned y ) |
| { |
| union tile_address addr; |
| |
| addr.value = 0; |
| addr.bits.x = x / TILE_SIZE; |
| addr.bits.y = y / TILE_SIZE; |
| |
| return addr; |
| } |
| |
| /* Quickly retrieve tile if it matches last lookup. |
| */ |
| static INLINE struct softpipe_cached_tile * |
| sp_get_cached_tile(struct softpipe_tile_cache *tc, |
| int x, int y ) |
| { |
| union tile_address addr = tile_address( x, y ); |
| |
| if (tc->last_tile_addr.value == addr.value) |
| return tc->last_tile; |
| |
| return sp_find_cached_tile( tc, addr ); |
| } |
| |
| |
| |
| |
| #endif /* SP_TILE_CACHE_H */ |
| |