src/gallium/drivers/etnaviv/etnaviv_shader.h

   1 /*
   2  * Copyright (c) 2012-2015 Etnaviv Project
   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  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Wladimir J. van der Laan <laanwj@gmail.com>
  25  */
  26
  27 #ifndef H_ETNAVIV_SHADER
  28 #define H_ETNAVIV_SHADER
  29
  30 #include "pipe/p_state.h"
  31
  32 struct etna_context;
  33 struct etna_shader_variant;
  34 struct nir_shader;
  35
  36 struct etna_shader_key
  37 {
  38    union {
  39       struct {
  40          /*
  41           * Combined Vertex/Fragment shader parameters:
  42           */
  43
  44          /* do we need to swap rb in frag color? */
  45          unsigned frag_rb_swap : 1;
  46          /* do we need to invert front facing value? */
  47          unsigned front_ccw : 1;
  48       };
  49       uint32_t global;
  50    };
  51 };
  52
  53 static inline bool
  54 etna_shader_key_equal(struct etna_shader_key *a, struct etna_shader_key *b)
  55 {
  56    STATIC_ASSERT(sizeof(struct etna_shader_key) <= sizeof(a->global));
  57
  58    return a->global == b->global;
  59 }
  60
  61 struct etna_shader {
  62    /* shader id (for debug): */
  63    uint32_t id;
  64    uint32_t variant_count;
  65
  66    struct tgsi_token *tokens;
  67    struct nir_shader *nir;
  68    const struct etna_specs *specs;
  69
  70    struct etna_shader_variant *variants;
  71 };
  72
  73 bool
  74 etna_shader_link(struct etna_context *ctx);
  75
  76 bool
  77 etna_shader_update_vertex(struct etna_context *ctx);
  78
  79 struct etna_shader_variant *
  80 etna_shader_variant(struct etna_shader *shader, struct etna_shader_key key,
  81                    struct pipe_debug_callback *debug);
  82
  83 void
  84 etna_shader_init(struct pipe_context *pctx);
  85
  86 #endif