src/gallium/drivers/radeonsi/radeonsi_shader.h

   1 /*
   2  * Copyright 2012 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  * Authors:
  24  *      Tom Stellard <thomas.stellard@amd.com>
  25  *      Michel Dänzer <michel.daenzer@amd.com>
  26  *      Christian König <christian.koenig@amd.com>
  27  */
  28
  29 #ifndef RADEONSI_SHADER_H
  30 #define RADEONSI_SHADER_H
  31
  32 #define SI_SGPR_CONST           0
  33 #define SI_SGPR_SAMPLER         2
  34 #define SI_SGPR_RESOURCE        4
  35 #define SI_SGPR_VERTEX_BUFFER   6
  36
  37 #define SI_VS_NUM_USER_SGPR     8
  38 #define SI_PS_NUM_USER_SGPR     6
  39
  40 struct si_shader_io {
  41         unsigned                name;
  42         int                     sid;
  43         unsigned                param_offset;
  44         unsigned                interpolate;
  45         bool                    centroid;
  46 };
  47
  48 struct si_pipe_shader;
  49
  50 struct si_pipe_shader_selector {
  51         struct si_pipe_shader *current;
  52
  53         struct tgsi_token       *tokens;
  54         struct pipe_stream_output_info  so;
  55
  56         unsigned        num_shaders;
  57
  58         /* PIPE_SHADER_[VERTEX|FRAGMENT|...] */
  59         unsigned        type;
  60
  61         /* 1 when the shader contains
  62          * TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS, otherwise it's 0.
  63          * Used to determine whether we need to include nr_cbufs in the key */
  64         unsigned        fs_write_all;
  65 };
  66
  67 struct si_shader {
  68         unsigned                ninput;
  69         struct si_shader_io     input[32];
  70
  71         unsigned                noutput;
  72         struct si_shader_io     output[32];
  73
  74         unsigned                ninterp;
  75         bool                    uses_kill;
  76         bool                    fs_write_all;
  77         unsigned                nr_cbufs;
  78 };
  79
  80 struct si_shader_key {
  81         unsigned                export_16bpc:8;
  82         unsigned                nr_cbufs:4;
  83         unsigned                color_two_side:1;
  84         unsigned                alpha_func:3;
  85         float                   alpha_ref;
  86 };
  87
  88 struct si_pipe_shader {
  89         struct si_pipe_shader_selector  *selector;
  90         struct si_pipe_shader           *next_variant;
  91         struct si_shader                shader;
  92         struct si_pm4_state             *pm4;
  93         struct si_resource              *bo;
  94         unsigned                        num_sgprs;
  95         unsigned                        num_vgprs;
  96         unsigned                        spi_ps_input_ena;
  97         unsigned                        sprite_coord_enable;
  98         unsigned                        so_strides[4];
  99         struct si_shader_key            key;
 100 };
 101
 102 /* radeonsi_shader.c */
 103 int si_pipe_shader_create(struct pipe_context *ctx, struct si_pipe_shader *shader,
 104                           struct si_shader_key key);
 105 void si_pipe_shader_destroy(struct pipe_context *ctx, struct si_pipe_shader *shader);
 106
 107 #endif