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  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.                         LLVMValueRef base_ptr,
  66.                         LLVMValueRef offset,
  67.                         LLVMValueRef i,
  68.                         LLVMValueRef j);
  69.  
  70. LLVMValueRef
  71. lp_build_fetch_rgba_aos_array(struct gallivm_state *gallivm,
  72.                         const struct util_format_description *format_desc,
  73.                         struct lp_type type,
  74.                         LLVMValueRef base_ptr,
  75.                         LLVMValueRef offset);
  76.  
  77.  
  78. /*
  79.  * SoA
  80.  */
  81.  
  82. void
  83. lp_build_format_swizzle_soa(const struct util_format_description *format_desc,
  84.                             struct lp_build_context *bld,
  85.                             const LLVMValueRef unswizzled[4],
  86.                             LLVMValueRef swizzled_out[4]);
  87.  
  88. void
  89. lp_build_unpack_rgba_soa(struct gallivm_state *gallivm,
  90.                          const struct util_format_description *format_desc,
  91.                          struct lp_type type,
  92.                          LLVMValueRef packed,
  93.                          LLVMValueRef rgba_out[4]);
  94.  
  95. void
  96. lp_build_rgba8_to_fi32_soa(struct gallivm_state *gallivm,
  97.                           struct lp_type dst_type,
  98.                           LLVMValueRef packed,
  99.                           LLVMValueRef *rgba);
  100.  
  101. void
  102. lp_build_fetch_rgba_soa(struct gallivm_state *gallivm,
  103.                         const struct util_format_description *format_desc,
  104.                         struct lp_type type,
  105.                         LLVMValueRef base_ptr,
  106.                         LLVMValueRef offsets,
  107.                         LLVMValueRef i,
  108.                         LLVMValueRef j,
  109.                         LLVMValueRef rgba_out[4]);
  110.  
  111. /*
  112.  * YUV
  113.  */
  114.  
  115.  
  116. LLVMValueRef
  117. lp_build_fetch_subsampled_rgba_aos(struct gallivm_state *gallivm,
  118.                                    const struct util_format_description *format_desc,
  119.                                    unsigned n,
  120.                                    LLVMValueRef base_ptr,
  121.                                    LLVMValueRef offset,
  122.                                    LLVMValueRef i,
  123.                                    LLVMValueRef j);
  124.  
  125. /*
  126.  * special float formats
  127.  */
  128.  
  129. LLVMValueRef
  130. lp_build_float_to_smallfloat(struct gallivm_state *gallivm,
  131.                              struct lp_type i32_type,
  132.                              LLVMValueRef src,
  133.                              unsigned mantissa_bits,
  134.                              unsigned exponent_bits,
  135.                              unsigned mantissa_start,
  136.                              boolean has_sign);
  137.  
  138. LLVMValueRef
  139. lp_build_smallfloat_to_float(struct gallivm_state *gallivm,
  140.                              struct lp_type f32_type,
  141.                              LLVMValueRef src,
  142.                              unsigned mantissa_bits,
  143.                              unsigned exponent_bits,
  144.                              unsigned mantissa_start,
  145.                              boolean has_sign);
  146.  
  147. LLVMValueRef
  148. lp_build_float_to_r11g11b10(struct gallivm_state *gallivm,
  149.                             LLVMValueRef *src);
  150.  
  151. void
  152. lp_build_r11g11b10_to_float(struct gallivm_state *gallivm,
  153.                             LLVMValueRef src,
  154.                             LLVMValueRef *dst);
  155.  
  156. void
  157. lp_build_rgb9e5_to_float(struct gallivm_state *gallivm,
  158.                          LLVMValueRef src,
  159.                          LLVMValueRef *dst);
  160.  
  161. LLVMValueRef
  162. lp_build_float_to_srgb_packed(struct gallivm_state *gallivm,
  163.                               const struct util_format_description *dst_fmt,
  164.                               struct lp_type src_type,
  165.                               LLVMValueRef *src);
  166.  
  167. LLVMValueRef
  168. lp_build_srgb_to_linear(struct gallivm_state *gallivm,
  169.                         struct lp_type src_type,
  170.                         LLVMValueRef src);
  171.  
  172.  
  173. #endif /* !LP_BLD_FORMAT_H */
  174.