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| 4358 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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| 21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
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| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | #ifndef SP_TILE_CACHE_H |
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| 29 | #define SP_TILE_CACHE_H |
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| 30 | |||
| 31 | |||
| 32 | #include "pipe/p_compiler.h" |
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| 33 | #include "sp_texture.h" |
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| 34 | |||
| 35 | |||
| 36 | struct softpipe_tile_cache; |
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| 37 | |||
| 38 | |||
| 39 | /** |
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| 40 | * Cache tile size (width and height). This needs to be a power of two. |
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| 41 | */ |
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| 42 | #define TILE_SIZE_LOG2 6 |
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| 43 | #define TILE_SIZE (1 << TILE_SIZE_LOG2) |
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| 44 | |||
| 45 | |||
| 46 | #define TILE_ADDR_BITS (SP_MAX_TEXTURE_2D_LEVELS - 1 - TILE_SIZE_LOG2) |
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| 47 | |||
| 48 | |||
| 49 | /** |
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| 50 | * Surface tile address as a union for fast compares. |
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| 51 | */ |
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| 52 | union tile_address { |
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| 53 | struct { |
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| 54 | unsigned x:TILE_ADDR_BITS; /* 16K / TILE_SIZE */ |
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| 55 | unsigned y:TILE_ADDR_BITS; /* 16K / TILE_SIZE */ |
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| 56 | unsigned invalid:1; |
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| 57 | unsigned pad:15; |
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| 58 | } bits; |
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| 59 | unsigned value; |
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| 60 | }; |
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| 61 | |||
| 62 | |||
| 63 | struct softpipe_cached_tile |
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| 64 | { |
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| 65 | union { |
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| 66 | float color[TILE_SIZE][TILE_SIZE][4]; |
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| 67 | uint color32[TILE_SIZE][TILE_SIZE]; |
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| 68 | uint depth32[TILE_SIZE][TILE_SIZE]; |
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| 69 | ushort depth16[TILE_SIZE][TILE_SIZE]; |
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| 70 | ubyte stencil8[TILE_SIZE][TILE_SIZE]; |
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| 71 | uint colorui128[TILE_SIZE][TILE_SIZE][4]; |
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| 72 | int colori128[TILE_SIZE][TILE_SIZE][4]; |
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| 73 | uint64_t depth64[TILE_SIZE][TILE_SIZE]; |
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| 74 | ubyte any[1]; |
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| 75 | } data; |
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| 76 | }; |
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| 77 | |||
| 78 | #define NUM_ENTRIES 50 |
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| 79 | |||
| 80 | |||
| 81 | struct softpipe_tile_cache |
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| 82 | { |
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| 83 | struct pipe_context *pipe; |
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| 84 | struct pipe_surface *surface; /**< the surface we're caching */ |
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| 85 | struct pipe_transfer *transfer; |
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| 86 | void *transfer_map; |
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| 87 | |||
| 88 | union tile_address tile_addrs[NUM_ENTRIES]; |
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| 89 | struct softpipe_cached_tile *entries[NUM_ENTRIES]; |
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| 90 | uint clear_flags[(MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32]; |
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| 91 | union pipe_color_union clear_color; /**< for color bufs */ |
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| 92 | uint64_t clear_val; /**< for z+stencil */ |
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| 93 | boolean depth_stencil; /**< Is the surface a depth/stencil format? */ |
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| 94 | |||
| 95 | struct softpipe_cached_tile *tile; /**< scratch tile for clears */ |
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| 96 | |||
| 97 | union tile_address last_tile_addr; |
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| 98 | struct softpipe_cached_tile *last_tile; /**< most recently retrieved tile */ |
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| 99 | }; |
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| 100 | |||
| 101 | |||
| 102 | extern struct softpipe_tile_cache * |
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| 103 | sp_create_tile_cache( struct pipe_context *pipe ); |
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| 104 | |||
| 105 | extern void |
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| 106 | sp_destroy_tile_cache(struct softpipe_tile_cache *tc); |
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| 107 | |||
| 108 | extern void |
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| 109 | sp_tile_cache_set_surface(struct softpipe_tile_cache *tc, |
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| 110 | struct pipe_surface *sps); |
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| 111 | |||
| 112 | extern struct pipe_surface * |
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| 113 | sp_tile_cache_get_surface(struct softpipe_tile_cache *tc); |
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| 114 | |||
| 115 | extern void |
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| 116 | sp_flush_tile_cache(struct softpipe_tile_cache *tc); |
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| 117 | |||
| 118 | extern void |
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| 119 | sp_tile_cache_clear(struct softpipe_tile_cache *tc, |
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| 120 | const union pipe_color_union *color, |
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| 121 | uint64_t clearValue); |
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| 122 | |||
| 123 | extern struct softpipe_cached_tile * |
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| 124 | sp_find_cached_tile(struct softpipe_tile_cache *tc, |
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| 125 | union tile_address addr ); |
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| 126 | |||
| 127 | |||
| 128 | static INLINE union tile_address |
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| 129 | tile_address( unsigned x, |
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| 130 | unsigned y ) |
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| 131 | { |
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| 132 | union tile_address addr; |
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| 133 | |||
| 134 | addr.value = 0; |
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| 135 | addr.bits.x = x / TILE_SIZE; |
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| 136 | addr.bits.y = y / TILE_SIZE; |
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| 137 | |||
| 138 | return addr; |
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| 139 | } |
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| 140 | |||
| 141 | /* Quickly retrieve tile if it matches last lookup. |
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| 142 | */ |
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| 143 | static INLINE struct softpipe_cached_tile * |
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| 144 | sp_get_cached_tile(struct softpipe_tile_cache *tc, |
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| 145 | int x, int y ) |
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| 146 | { |
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| 147 | union tile_address addr = tile_address( x, y ); |
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| 148 | |||
| 149 | if (tc->last_tile_addr.value == addr.value) |
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| 150 | return tc->last_tile; |
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| 151 | |||
| 152 | return sp_find_cached_tile( tc, addr ); |
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| 153 | } |
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| 154 | |||
| 155 | |||
| 156 | |||
| 157 | |||
| 158 | #endif /* SP_TILE_CACHE_H */ |
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| 159 |