src/gallium/drivers/llvmpipe/lp_tex_sample.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   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:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  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.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef LP_TEX_SAMPLE_H
  29 #define LP_TEX_SAMPLE_H
  30
  31
  32 #include <llvm-c/Core.h>
  33
  34 #include "tgsi/tgsi_exec.h"
  35
  36
  37 struct lp_sampler_static_state;
  38
  39
  40
  41 extern void
  42 lp_get_samples(struct tgsi_sampler *tgsi_sampler,
  43                const float s[QUAD_SIZE],
  44                const float t[QUAD_SIZE],
  45                const float p[QUAD_SIZE],
  46                float lodbias,
  47                float rgba[NUM_CHANNELS][QUAD_SIZE]);
  48
  49
  50 /**
  51  * Texture sampling code generator that just calls lp_get_samples C function
  52  * for the actual sampling computation.
  53  *
  54  * @param context_ptr LLVM value with the pointer to the struct lp_jit_context.
  55  */
  56 struct lp_build_sampler_soa *
  57 lp_c_sampler_soa_create(LLVMValueRef context_ptr);
  58
  59
  60 /**
  61  * Pure-LLVM texture sampling code generator.
  62  *
  63  * @param context_ptr LLVM value with the pointer to the struct lp_jit_context.
  64  */
  65 struct lp_build_sampler_soa *
  66 lp_llvm_sampler_soa_create(const struct lp_sampler_static_state *key,
  67                            LLVMValueRef context_ptr);
  68
  69
  70 #endif /* LP_TEX_SAMPLE_H */