src/gallium/drivers/r600/r600_shader.h

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   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 #ifndef R600_SHADER_H
  24 #define R600_SHADER_H
  25
  26 #include "r600_asm.h"
  27
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /* Valid shader configurations:
  34  *
  35  * API shaders       VS | TCS | TES | GS |pass| PS
  36  * are compiled as:     |     |     |    |thru|
  37  *                      |     |     |    |    |
  38  * Only VS & PS:     VS | --  | --  | -- | -- | PS
  39  * With GS:          ES | --  | --  | GS | VS | PS
  40  * With Tessel.:     LS | HS  | VS  | -- | -- | PS
  41  * With both:        LS | HS  | ES  | GS | VS | PS
  42  */
  43
  44 struct r600_shader_io {
  45         unsigned                name;
  46         unsigned                gpr;
  47         unsigned                done;
  48         int                     sid;
  49         int                     spi_sid;
  50         unsigned                interpolate;
  51         unsigned                ij_index;
  52         unsigned                interpolate_location; //  TGSI_INTERPOLATE_LOC_CENTER, CENTROID, SAMPLE
  53         unsigned                lds_pos; /* for evergreen */
  54         unsigned                back_color_input;
  55         unsigned                write_mask;
  56         int                     ring_offset;
  57 };
  58
  59 struct r600_shader_atomic {
  60         unsigned start, end;
  61         unsigned buffer_id;
  62         unsigned hw_idx;
  63         unsigned array_id;
  64 };
  65
  66 struct r600_shader {
  67         unsigned                processor_type;
  68         struct r600_bytecode            bc;
  69         unsigned                ninput;
  70         unsigned                noutput;
  71         unsigned                nhwatomic;
  72         unsigned                nlds;
  73         unsigned                nsys_inputs;
  74         struct r600_shader_io   input[64];
  75         struct r600_shader_io   output[64];
  76         struct r600_shader_atomic atomics[8];
  77         unsigned                nhwatomic_ranges;
  78         boolean                 uses_kill;
  79         boolean                 fs_write_all;
  80         boolean                 two_side;
  81         boolean                 needs_scratch_space;
  82         /* Number of color outputs in the TGSI shader,
  83          * sometimes it could be higher than nr_cbufs (bug?).
  84          * Also with writes_all property on eg+ it will be set to max CB number */
  85         unsigned                nr_ps_max_color_exports;
  86         /* Real number of ps color exports compiled in the bytecode */
  87         unsigned                nr_ps_color_exports;
  88         unsigned                ps_color_export_mask;
  89         unsigned                ps_export_highest;
  90         /* bit n is set if the shader writes gl_ClipDistance[n] */
  91         unsigned                cc_dist_mask;
  92         unsigned                clip_dist_write;
  93         unsigned                cull_dist_write;
  94         boolean                 vs_position_window_space;
  95         /* flag is set if the shader writes VS_OUT_MISC_VEC (e.g. for PSIZE) */
  96         boolean                 vs_out_misc_write;
  97         boolean                 vs_out_point_size;
  98         boolean                 vs_out_layer;
  99         boolean                 vs_out_viewport;
 100         boolean                 vs_out_edgeflag;
 101         boolean                 has_txq_cube_array_z_comp;
 102         boolean                 uses_tex_buffers;
 103         boolean                 gs_prim_id_input;
 104         boolean                 gs_tri_strip_adj_fix;
 105         uint8_t                 ps_conservative_z;
 106
 107         /* Size in bytes of a data item in the ring(s) (single vertex data).
 108            Stages with only one ring items 123 will be set to 0. */
 109         unsigned                ring_item_sizes[4];
 110
 111         unsigned                indirect_files;
 112         unsigned                max_arrays;
 113         unsigned                num_arrays;
 114         unsigned                vs_as_es;
 115         unsigned                vs_as_ls;
 116         unsigned                vs_as_gs_a;
 117         unsigned                tes_as_es;
 118         unsigned                tcs_prim_mode;
 119         unsigned                ps_prim_id_input;
 120         struct r600_shader_array * arrays;
 121
 122         boolean                 uses_doubles;
 123         boolean                 uses_atomics;
 124         boolean                 uses_images;
 125         boolean                 uses_helper_invocation;
 126         uint8_t                 atomic_base;
 127         uint8_t                 rat_base;
 128         uint8_t                 image_size_const_offset;
 129 };
 130
 131 union r600_shader_key {
 132         struct {
 133                 unsigned        nr_cbufs:4;
 134                 unsigned        first_atomic_counter:4;
 135                 unsigned        image_size_const_offset:5;
 136                 unsigned        color_two_side:1;
 137                 unsigned        alpha_to_one:1;
 138         } ps;
 139         struct {
 140                 unsigned        prim_id_out:8;
 141                 unsigned        first_atomic_counter:4;
 142                 unsigned        as_es:1; /* export shader */
 143                 unsigned        as_ls:1; /* local shader */
 144                 unsigned        as_gs_a:1;
 145         } vs;
 146         struct {
 147                 unsigned        first_atomic_counter:4;
 148                 unsigned        as_es:1;
 149         } tes;
 150         struct {
 151                 unsigned        first_atomic_counter:4;
 152                 unsigned        prim_mode:3;
 153         } tcs;
 154         struct {
 155                 unsigned        first_atomic_counter:4;
 156                 unsigned        tri_strip_adj_fix:1;
 157         } gs;
 158 };
 159
 160 struct r600_shader_array {
 161         unsigned gpr_start;
 162         unsigned gpr_count;
 163         unsigned comp_mask;
 164 };
 165
 166 struct r600_pipe_shader {
 167         struct r600_pipe_shader_selector *selector;
 168         struct r600_pipe_shader *next_variant;
 169         /* for GS - corresponding copy shader (installed as VS) */
 170         struct r600_pipe_shader *gs_copy_shader;
 171         struct r600_shader      shader;
 172         struct r600_command_buffer command_buffer; /* register writes */
 173         struct r600_resource    *bo;
 174         unsigned                sprite_coord_enable;
 175         unsigned                flatshade;
 176         unsigned                pa_cl_vs_out_cntl;
 177         unsigned                nr_ps_color_outputs;
 178         unsigned                ps_color_export_mask;
 179
 180         union r600_shader_key   key;
 181         unsigned                db_shader_control;
 182         unsigned                ps_depth_export;
 183         unsigned                enabled_stream_buffers_mask;
 184         unsigned                scratch_space_needed; /* size of scratch space (if > 0) counted in vec4 */
 185 };
 186
 187 /* return the table index 0-5 for TGSI_INTERPOLATE_LINEAR/PERSPECTIVE and
 188  TGSI_INTERPOLATE_LOC_CENTER/SAMPLE/COUNT. Other input values return -1. */
 189 int eg_get_interpolator_index(unsigned interpolate, unsigned location);
 190
 191 int r600_get_lds_unique_index(unsigned semantic_name, unsigned index);
 192
 193 #ifdef __cplusplus
 194 }  // extern "C"
 195 #endif
 196
 197
 198 #endif