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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_f32_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 #endif /* !LP_BLD_FORMAT_H */
    126