src/gallium/auxiliary/tgsi/tgsi_from_mesa.h

   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 #ifdef __cplusplus
  36 extern "C" {
  37 #endif
  38
  39
  40 void
  41 tgsi_get_gl_varying_semantic(gl_varying_slot attr,
  42                              bool needs_texcoord_semantic,
  43                              unsigned *semantic_name,
  44                              unsigned *semantic_index);
  45
  46 unsigned
  47 tgsi_get_generic_gl_varying_index(gl_varying_slot attr,
  48                                   bool needs_texcoord_semantic);
  49
  50 void
  51 tgsi_get_gl_frag_result_semantic(gl_frag_result frag_result,
  52                                  unsigned *semantic_name,
  53                                  unsigned *semantic_index);
  54
  55 enum tgsi_semantic
  56 tgsi_get_sysval_semantic(unsigned sysval);
  57
  58 static inline enum pipe_shader_type
  59 pipe_shader_type_from_mesa(gl_shader_stage stage)
  60 {
  61    switch (stage) {
  62    case MESA_SHADER_VERTEX:
  63       return PIPE_SHADER_VERTEX;
  64    case MESA_SHADER_TESS_CTRL:
  65       return PIPE_SHADER_TESS_CTRL;
  66    case MESA_SHADER_TESS_EVAL:
  67       return PIPE_SHADER_TESS_EVAL;
  68    case MESA_SHADER_GEOMETRY:
  69       return PIPE_SHADER_GEOMETRY;
  70    case MESA_SHADER_FRAGMENT:
  71       return PIPE_SHADER_FRAGMENT;
  72    case MESA_SHADER_COMPUTE:
  73    case MESA_SHADER_KERNEL:
  74       return PIPE_SHADER_COMPUTE;
  75    default:
  76       unreachable("bad shader stage");
  77    }
  78 }
  79
  80 static inline gl_shader_stage
  81 tgsi_processor_to_shader_stage(unsigned processor)
  82 {
  83    switch (processor) {
  84    case PIPE_SHADER_FRAGMENT:  return MESA_SHADER_FRAGMENT;
  85    case PIPE_SHADER_VERTEX:    return MESA_SHADER_VERTEX;
  86    case PIPE_SHADER_GEOMETRY:  return MESA_SHADER_GEOMETRY;
  87    case PIPE_SHADER_TESS_CTRL: return MESA_SHADER_TESS_CTRL;
  88    case PIPE_SHADER_TESS_EVAL: return MESA_SHADER_TESS_EVAL;
  89    case PIPE_SHADER_COMPUTE:   return MESA_SHADER_COMPUTE;
  90    default:
  91       unreachable("invalid TGSI processor");
  92    }
  93 }
  94
  95 #ifdef __cplusplus
  96 }
  97 #endif
  98
  99 #endif /* TGSI_FROM_MESA_H */