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
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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 <llvm-c/Core.h>
34 #include "tgsi/tgsi_exec.h"
37 struct llvmpipe_tex_tile_cache
;
38 struct lp_sampler_static_state
;
42 * Subclass of tgsi_sampler
44 struct lp_shader_sampler
46 struct tgsi_sampler base
; /**< base class */
50 /* For lp_get_samples_2d_linear_POT:
56 const struct pipe_texture
*texture
;
57 const struct pipe_sampler_state
*sampler
;
59 struct llvmpipe_tex_tile_cache
*cache
;
64 static INLINE
struct lp_shader_sampler
*
65 lp_shader_sampler(const struct tgsi_sampler
*sampler
)
67 return (struct lp_shader_sampler
*) sampler
;
73 lp_get_samples(struct tgsi_sampler
*tgsi_sampler
,
74 const float s
[QUAD_SIZE
],
75 const float t
[QUAD_SIZE
],
76 const float p
[QUAD_SIZE
],
78 float rgba
[NUM_CHANNELS
][QUAD_SIZE
]);
82 * Texture sampling code generator that just calls lp_get_samples C function
83 * for the actual sampling computation.
85 * @param context_ptr LLVM value with the pointer to the struct lp_jit_context.
87 struct lp_build_sampler_soa
*
88 lp_c_sampler_soa_create(LLVMValueRef context_ptr
);
92 * Pure-LLVM texture sampling code generator.
94 * @param context_ptr LLVM value with the pointer to the struct lp_jit_context.
96 struct lp_build_sampler_soa
*
97 lp_llvm_sampler_soa_create(const struct lp_sampler_static_state
*key
,
98 LLVMValueRef context_ptr
);
101 #endif /* LP_TEX_SAMPLE_H */