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
  34 struct r600_shader_io {
  35         unsigned                name;
  36         unsigned                gpr;
  37         unsigned                done;
  38         int                     sid;
  39         int                     spi_sid;
  40         unsigned                interpolate;
  41         unsigned                ij_index;
  42         unsigned        interpolate_location; //  TGSI_INTERPOLATE_LOC_CENTER, CENTROID, SAMPLE
  43         unsigned                lds_pos; /* for evergreen */
  44         unsigned                back_color_input;
  45         unsigned                write_mask;
  46         int                             ring_offset;
  47 };
  48
  49 struct r600_shader {
  50         unsigned                processor_type;
  51         struct r600_bytecode            bc;
  52         unsigned                ninput;
  53         unsigned                noutput;
  54         unsigned                nlds;
  55         struct r600_shader_io   input[40];
  56         struct r600_shader_io   output[40];
  57         boolean                 uses_kill;
  58         boolean                 fs_write_all;
  59         boolean                 two_side;
  60         /* Number of color outputs in the TGSI shader,
  61          * sometimes it could be higher than nr_cbufs (bug?).
  62          * Also with writes_all property on eg+ it will be set to max CB number */
  63         unsigned                nr_ps_max_color_exports;
  64         /* Real number of ps color exports compiled in the bytecode */
  65         unsigned                nr_ps_color_exports;
  66         /* bit n is set if the shader writes gl_ClipDistance[n] */
  67         unsigned                clip_dist_write;
  68         boolean                 vs_position_window_space;
  69         /* flag is set if the shader writes VS_OUT_MISC_VEC (e.g. for PSIZE) */
  70         boolean                 vs_out_misc_write;
  71         boolean                 vs_out_point_size;
  72         boolean                 vs_out_layer;
  73         boolean                 vs_out_viewport;
  74         boolean                 vs_out_edgeflag;
  75         boolean                 has_txq_cube_array_z_comp;
  76         boolean                 uses_tex_buffers;
  77         boolean                 gs_prim_id_input;
  78         /* Temporarily workaround SB not handling CF_INDEX_[01] index registers */
  79         boolean                 uses_index_registers;
  80
  81         /* geometry shader properties */
  82         unsigned                gs_input_prim;
  83         unsigned                gs_output_prim;
  84         unsigned                gs_max_out_vertices;
  85         unsigned                gs_num_invocations;
  86         /* size in bytes of a data item in the ring (single vertex data) */
  87         unsigned                ring_item_size;
  88
  89         unsigned                indirect_files;
  90         unsigned                max_arrays;
  91         unsigned                num_arrays;
  92         unsigned                vs_as_es;
  93         unsigned                vs_as_gs_a;
  94         unsigned                ps_prim_id_input;
  95         struct r600_shader_array * arrays;
  96 };
  97
  98 union r600_shader_key {
  99         struct {
 100                 unsigned        nr_cbufs:4;
 101                 unsigned        color_two_side:1;
 102                 unsigned        alpha_to_one:1;
 103         } ps;
 104         struct {
 105                 unsigned        prim_id_out:8;
 106                 unsigned        as_es:1; /* export shader */
 107                 unsigned        as_gs_a:1;
 108         } vs;
 109 };
 110
 111 struct r600_shader_array {
 112         unsigned gpr_start;
 113         unsigned gpr_count;
 114         unsigned comp_mask;
 115 };
 116
 117 struct r600_pipe_shader {
 118         struct r600_pipe_shader_selector *selector;
 119         struct r600_pipe_shader *next_variant;
 120         /* for GS - corresponding copy shader (installed as VS) */
 121         struct r600_pipe_shader *gs_copy_shader;
 122         struct r600_shader      shader;
 123         struct r600_command_buffer command_buffer; /* register writes */
 124         struct r600_resource    *bo;
 125         unsigned                sprite_coord_enable;
 126         unsigned                flatshade;
 127         unsigned                pa_cl_vs_out_cntl;
 128         unsigned                nr_ps_color_outputs;
 129         union r600_shader_key   key;
 130         unsigned                db_shader_control;
 131         unsigned                ps_depth_export;
 132         unsigned                enabled_stream_buffers_mask;
 133 };
 134
 135 /* return the table index 0-5 for TGSI_INTERPOLATE_LINEAR/PERSPECTIVE and
 136  TGSI_INTERPOLATE_LOC_CENTER/SAMPLE/COUNT. Other input values return -1. */
 137 int eg_get_interpolator_index(unsigned interpolate, unsigned location);
 138
 139
 140 #ifdef __cplusplus
 141 }  // extern "C"
 142 #endif
 143
 144
 145 #endif