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      1 /*
      2  * Copyright 2017 Advanced Micro Devices, Inc.
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * on the rights to use, copy, modify, merge, publish, distribute, sub
      8  * license, and/or sell copies of the Software, and to permit persons to whom
      9  * the Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
     19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     22  */
     23 
     24 #ifndef TGSI_FROM_MESA_H
     25 #define TGSI_FROM_MESA_H
     26 
     27 #include <stdbool.h>
     28 
     29 #include "pipe/p_compiler.h"
     30 #include "pipe/p_defines.h"
     31 #include "pipe/p_shader_tokens.h"
     32 
     33 #include "compiler/shader_enums.h"
     34 
     35 void
     36 tgsi_get_gl_varying_semantic(gl_varying_slot attr,
     37                              bool needs_texcoord_semantic,
     38                              unsigned *semantic_name,
     39                              unsigned *semantic_index);
     40 
     41 unsigned
     42 tgsi_get_generic_gl_varying_index(gl_varying_slot attr,
     43                                   bool needs_texcoord_semantic);
     44 
     45 void
     46 tgsi_get_gl_frag_result_semantic(gl_frag_result frag_result,
     47                                  unsigned *semantic_name,
     48                                  unsigned *semantic_index);
     49 
     50 static inline enum pipe_shader_type
     51 pipe_shader_type_from_mesa(gl_shader_stage stage)
     52 {
     53    switch (stage) {
     54    case MESA_SHADER_VERTEX:
     55       return PIPE_SHADER_VERTEX;
     56    case MESA_SHADER_TESS_CTRL:
     57       return PIPE_SHADER_TESS_CTRL;
     58    case MESA_SHADER_TESS_EVAL:
     59       return PIPE_SHADER_TESS_EVAL;
     60    case MESA_SHADER_GEOMETRY:
     61       return PIPE_SHADER_GEOMETRY;
     62    case MESA_SHADER_FRAGMENT:
     63       return PIPE_SHADER_FRAGMENT;
     64    case MESA_SHADER_COMPUTE:
     65       return PIPE_SHADER_COMPUTE;
     66    default:
     67       unreachable("bad shader stage");
     68    }
     69 }
     70 
     71 #endif /* TGSI_FROM_MESA_H */
     72