src/gallium/auxiliary/gallivm/lp_bld_format.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   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 VMWARE 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_BLD_FORMAT_H
  29 #define LP_BLD_FORMAT_H
  30
  31
  32 /**
  33  * @file
  34  * Pixel format helpers.
  35  */
  36
  37 #include "gallivm/lp_bld.h"
  38 #include "gallivm/lp_bld_init.h"
  39
  40 #include "pipe/p_format.h"
  41
  42 struct util_format_description;
  43 struct lp_type;
  44 struct lp_build_context;
  45
  46
  47 /*
  48  * AoS
  49  */
  50
  51 LLVMValueRef
  52 lp_build_format_swizzle_aos(const struct util_format_description *desc,
  53                             struct lp_build_context *bld,
  54                             LLVMValueRef unswizzled);
  55
  56 LLVMValueRef
  57 lp_build_pack_rgba_aos(struct gallivm_state *gallivm,
  58                        const struct util_format_description *desc,
  59                        LLVMValueRef rgba);
  60
  61 LLVMValueRef
  62 lp_build_fetch_rgba_aos(struct gallivm_state *gallivm,
  63                         const struct util_format_description *format_desc,
  64                         struct lp_type type,
  65                         boolean aligned,
  66                         LLVMValueRef base_ptr,
  67                         LLVMValueRef offset,
  68                         LLVMValueRef i,
  69                         LLVMValueRef j);
  70
  71 LLVMValueRef
  72 lp_build_fetch_rgba_aos_array(struct gallivm_state *gallivm,
  73                         const struct util_format_description *format_desc,
  74                         struct lp_type type,
  75                         LLVMValueRef base_ptr,
  76                         LLVMValueRef offset);
  77
  78
  79 /*
  80  * SoA
  81  */
  82
  83 void
  84 lp_build_format_swizzle_soa(const struct util_format_description *format_desc,
  85                             struct lp_build_context *bld,
  86                             const LLVMValueRef unswizzled[4],
  87                             LLVMValueRef swizzled_out[4]);
  88
  89 void
  90 lp_build_unpack_rgba_soa(struct gallivm_state *gallivm,
  91                          const struct util_format_description *format_desc,
  92                          struct lp_type type,
  93                          LLVMValueRef packed,
  94                          LLVMValueRef rgba_out[4]);
  95
  96 void
  97 lp_build_rgba8_to_fi32_soa(struct gallivm_state *gallivm,
  98                           struct lp_type dst_type,
  99                           LLVMValueRef packed,
 100                           LLVMValueRef *rgba);
 101
 102 void
 103 lp_build_fetch_rgba_soa(struct gallivm_state *gallivm,
 104                         const struct util_format_description *format_desc,
 105                         struct lp_type type,
 106                         LLVMValueRef base_ptr,
 107                         LLVMValueRef offsets,
 108                         LLVMValueRef i,
 109                         LLVMValueRef j,
 110                         LLVMValueRef rgba_out[4]);
 111
 112 /*
 113  * YUV
 114  */
 115
 116
 117 LLVMValueRef
 118 lp_build_fetch_subsampled_rgba_aos(struct gallivm_state *gallivm,
 119                                    const struct util_format_description *format_desc,
 120                                    unsigned n,
 121                                    LLVMValueRef base_ptr,
 122                                    LLVMValueRef offset,
 123                                    LLVMValueRef i,
 124                                    LLVMValueRef j);
 125
 126 /*
 127  * special float formats
 128  */
 129
 130 LLVMValueRef
 131 lp_build_float_to_smallfloat(struct gallivm_state *gallivm,
 132                              struct lp_type i32_type,
 133                              LLVMValueRef src,
 134                              unsigned mantissa_bits,
 135                              unsigned exponent_bits,
 136                              unsigned mantissa_start,
 137                              boolean has_sign);
 138
 139 LLVMValueRef
 140 lp_build_smallfloat_to_float(struct gallivm_state *gallivm,
 141                              struct lp_type f32_type,
 142                              LLVMValueRef src,
 143                              unsigned mantissa_bits,
 144                              unsigned exponent_bits,
 145                              unsigned mantissa_start,
 146                              boolean has_sign);
 147
 148 LLVMValueRef
 149 lp_build_float_to_r11g11b10(struct gallivm_state *gallivm,
 150                             LLVMValueRef *src);
 151
 152 void
 153 lp_build_r11g11b10_to_float(struct gallivm_state *gallivm,
 154                             LLVMValueRef src,
 155                             LLVMValueRef *dst);
 156
 157 void
 158 lp_build_rgb9e5_to_float(struct gallivm_state *gallivm,
 159                          LLVMValueRef src,
 160                          LLVMValueRef *dst);
 161
 162 LLVMValueRef
 163 lp_build_float_to_srgb_packed(struct gallivm_state *gallivm,
 164                               const struct util_format_description *dst_fmt,
 165                               struct lp_type src_type,
 166                               LLVMValueRef *src);
 167
 168 LLVMValueRef
 169 lp_build_srgb_to_linear(struct gallivm_state *gallivm,
 170                         struct lp_type src_type,
 171                         unsigned chan_bits,
 172                         LLVMValueRef src);
 173
 174
 175 #endif /* !LP_BLD_FORMAT_H */