src/gallium/drivers/panfrost/midgard/midgard_compile.h

   1 /*
   2  * Copyright (C) 2018 Alyssa Rosenzweig <alyssa@rosenzweig.io>
   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, sublicense,
   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 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 NONINFRINGEMENT.  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 FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  */
  23
  24
  25 #include "compiler/nir/nir.h"
  26 #include "util/u_dynarray.h"
  27
  28 /* Define the general compiler entry point */
  29
  30 typedef struct {
  31         int work_register_count;
  32         int uniform_count;
  33         int uniform_cutoff;
  34
  35         int attribute_count;
  36         int varying_count;
  37
  38         /* Boolean properties of the program */
  39         bool can_discard;
  40         bool writes_point_size;
  41
  42         int first_tag;
  43
  44         struct util_dynarray compiled;
  45
  46         /* For a blend shader using a constant color -- patch point. If
  47          * negative, there's no constant. */
  48
  49         int blend_patch_offset;
  50
  51         /* IN: For a fragment shader with a lowered alpha test, the ref value */
  52         float alpha_ref;
  53 } midgard_program;
  54
  55 int
  56 midgard_compile_shader_nir(nir_shader *nir, midgard_program *program, bool is_blend);
  57
  58 /* NIR options are shared between the standalone compiler and the online
  59  * compiler. Defining it here is the simplest, though maybe not the Right
  60  * solution. */
  61
  62 static const nir_shader_compiler_options midgard_nir_options = {
  63         .lower_ffma = true,
  64         .lower_sub = true,
  65         .lower_fpow = true,
  66         .lower_scmp = true,
  67         .lower_flrp32 = true,
  68         .lower_flrp64 = true,
  69         .lower_ffract = true,
  70         .lower_fmod32 = true,
  71         .lower_fmod64 = true,
  72         .lower_fdiv = true,
  73         .lower_idiv = true,
  74
  75         .vertex_id_zero_based = true,
  76         .lower_extract_byte = true,
  77         .lower_extract_word = true,
  78
  79         .native_integers = true
  80 };