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 **************************************************************************/
28 #ifndef LP_TEX_SAMPLE_H
29 #define LP_TEX_SAMPLE_H
32 #include "tgsi/tgsi_exec.h"
35 struct llvmpipe_tex_tile_cache
;
39 * Subclass of tgsi_sampler
41 struct lp_shader_sampler
43 struct tgsi_sampler base
; /**< base class */
47 /* For lp_get_samples_2d_linear_POT:
53 const struct pipe_texture
*texture
;
54 const struct pipe_sampler_state
*sampler
;
56 struct llvmpipe_tex_tile_cache
*cache
;
61 static INLINE
struct lp_shader_sampler
*
62 lp_shader_sampler(const struct tgsi_sampler
*sampler
)
64 return (struct lp_shader_sampler
*) sampler
;
70 lp_get_samples(struct tgsi_sampler
*tgsi_sampler
,
71 const float s
[QUAD_SIZE
],
72 const float t
[QUAD_SIZE
],
73 const float p
[QUAD_SIZE
],
75 float rgba
[NUM_CHANNELS
][QUAD_SIZE
]);
78 #endif /* LP_TEX_SAMPLE_H */