1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
32 #include "pipe/p_state.h"
33 #include "util/u_debug.h"
34 #include "lp_limits.h"
39 LP_TEX_USAGE_READ
= 100,
40 LP_TEX_USAGE_READ_WRITE
,
41 LP_TEX_USAGE_WRITE_ALL
45 /** Per-tile layout mode */
46 enum lp_texture_layout
48 LP_TEX_LAYOUT_NONE
= 0, /**< no layout for the tile data yet */
49 LP_TEX_LAYOUT_TILED
, /**< the tile data is in tiled layout */
50 LP_TEX_LAYOUT_LINEAR
, /**< the tile data is in linear layout */
51 LP_TEX_LAYOUT_BOTH
/**< the tile data is in both modes */
57 struct llvmpipe_context
;
59 struct sw_displaytarget
;
63 * We keep one or two copies of the texture image data: one in a simple
64 * linear layout (for texture sampling) and another in a tiled layout (for
65 * render targets). We keep track of whether each image tile is linear
66 * or tiled on a per-tile basis.
70 /** A 1D/2D/3D image, one mipmap level */
71 struct llvmpipe_texture_image
78 * llvmpipe subclass of pipe_resource. A texture, drawing surface,
79 * vertex buffer, const buffer, etc.
80 * Textures are stored differently than othere types of objects such as
81 * vertex buffers and const buffers.
82 * The former are tiled and have per-tile layout flags.
83 * The later are simple malloc'd blocks of memory.
85 struct llvmpipe_resource
87 struct pipe_resource base
;
89 /** Row stride in bytes */
90 unsigned row_stride
[LP_MAX_TEXTURE_LEVELS
];
91 /** Image stride (for cube maps or 3D textures) in bytes */
92 unsigned img_stride
[LP_MAX_TEXTURE_LEVELS
];
93 unsigned tiles_per_row
[LP_MAX_TEXTURE_LEVELS
];
94 unsigned tiles_per_image
[LP_MAX_TEXTURE_LEVELS
];
95 /** Number of 3D slices or cube faces per level */
96 unsigned num_slices_faces
[LP_MAX_TEXTURE_LEVELS
];
97 /** Offset to start of mipmap level, in bytes */
98 unsigned tiled_mip_offsets
[LP_MAX_TEXTURE_LEVELS
];
99 unsigned linear_mip_offsets
[LP_MAX_TEXTURE_LEVELS
];
102 * Display target, for textures with the PIPE_BIND_DISPLAY_TARGET
105 struct sw_displaytarget
*dt
;
108 * Malloc'ed data for regular textures, or a mapping to dt above.
110 struct llvmpipe_texture_image tiled_img
;
111 struct llvmpipe_texture_image linear_img
;
114 * Data for non-texture resources.
118 /** array [level][face or slice][tile_y][tile_x] of layout values) */
119 enum lp_texture_layout
*layout
[LP_MAX_TEXTURE_LEVELS
];
121 boolean userBuffer
; /** Is this a user-space buffer? */
124 unsigned id
; /**< temporary, for debugging */
127 /** for linked list */
128 struct llvmpipe_resource
*prev
, *next
;
133 struct llvmpipe_transfer
135 struct pipe_transfer base
;
137 unsigned long offset
;
142 static INLINE
struct llvmpipe_resource
*
143 llvmpipe_resource(struct pipe_resource
*pt
)
145 return (struct llvmpipe_resource
*) pt
;
149 static INLINE
const struct llvmpipe_resource
*
150 llvmpipe_resource_const(const struct pipe_resource
*pt
)
152 return (const struct llvmpipe_resource
*) pt
;
156 static INLINE
struct llvmpipe_transfer
*
157 llvmpipe_transfer(struct pipe_transfer
*pt
)
159 return (struct llvmpipe_transfer
*) pt
;
163 void llvmpipe_init_screen_resource_funcs(struct pipe_screen
*screen
);
164 void llvmpipe_init_context_resource_funcs(struct pipe_context
*pipe
);
166 static INLINE
unsigned
167 llvmpipe_resource_stride(struct pipe_resource
*resource
,
170 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
171 assert(level
< LP_MAX_TEXTURE_2D_LEVELS
);
172 return lpr
->row_stride
[level
];
177 llvmpipe_resource_map(struct pipe_resource
*resource
,
180 enum lp_texture_usage tex_usage
,
181 enum lp_texture_layout layout
);
184 llvmpipe_resource_unmap(struct pipe_resource
*resource
,
190 llvmpipe_resource_data(struct pipe_resource
*resource
);
194 llvmpipe_resource_size(const struct pipe_resource
*resource
);
198 llvmpipe_get_texture_image_address(struct llvmpipe_resource
*lpr
,
199 unsigned face_slice
, unsigned level
,
200 enum lp_texture_layout layout
);
203 llvmpipe_get_texture_image(struct llvmpipe_resource
*resource
,
204 unsigned face_slice
, unsigned level
,
205 enum lp_texture_usage usage
,
206 enum lp_texture_layout layout
);
209 llvmpipe_get_texture_image_all(struct llvmpipe_resource
*lpr
,
211 enum lp_texture_usage usage
,
212 enum lp_texture_layout layout
);
215 llvmpipe_get_texture_tile_linear(struct llvmpipe_resource
*lpr
,
216 unsigned face_slice
, unsigned level
,
217 enum lp_texture_usage usage
,
218 unsigned x
, unsigned y
);
221 llvmpipe_get_texture_tile(struct llvmpipe_resource
*lpr
,
222 unsigned face_slice
, unsigned level
,
223 enum lp_texture_usage usage
,
224 unsigned x
, unsigned y
);
228 llvmpipe_print_resources(void);
232 llvmpipe_init_screen_texture_funcs(struct pipe_screen
*screen
);
235 llvmpipe_init_context_texture_funcs(struct pipe_context
*pipe
);
238 #define LP_UNREFERENCED 0
239 #define LP_REFERENCED_FOR_READ (1 << 0)
240 #define LP_REFERENCED_FOR_WRITE (1 << 1)
243 llvmpipe_is_resource_referenced( struct pipe_context
*pipe
,
244 struct pipe_resource
*presource
,
245 unsigned level
, int layer
);
248 llvmpipe_get_format_alignment(enum pipe_format format
);
250 #endif /* LP_TEXTURE_H */