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  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. struct r600_shader_key {
  99.         unsigned color_two_side:1;
  100.         unsigned alpha_to_one:1;
  101.         unsigned nr_cbufs:4;
  102.         unsigned vs_as_es:1;
  103.         unsigned vs_as_gs_a:1;
  104.         unsigned vs_prim_id_out:8;
  105. };
  106.  
  107. struct r600_shader_array {
  108.         unsigned gpr_start;
  109.         unsigned gpr_count;
  110.         unsigned comp_mask;
  111. };
  112.  
  113. struct r600_pipe_shader {
  114.         struct r600_pipe_shader_selector *selector;
  115.         struct r600_pipe_shader *next_variant;
  116.         /* for GS - corresponding copy shader (installed as VS) */
  117.         struct r600_pipe_shader *gs_copy_shader;
  118.         struct r600_shader      shader;
  119.         struct r600_command_buffer command_buffer; /* register writes */
  120.         struct r600_resource    *bo;
  121.         unsigned                sprite_coord_enable;
  122.         unsigned                flatshade;
  123.         unsigned                pa_cl_vs_out_cntl;
  124.         unsigned                nr_ps_color_outputs;
  125.         struct r600_shader_key  key;
  126.         unsigned                db_shader_control;
  127.         unsigned                ps_depth_export;
  128. };
  129.  
  130. /* return the table index 0-5 for TGSI_INTERPOLATE_LINEAR/PERSPECTIVE and
  131.  TGSI_INTERPOLATE_LOC_CENTER/SAMPLE/COUNT. Other input values return -1. */
  132. int eg_get_interpolator_index(unsigned interpolate, unsigned location);
  133.  
  134.  
  135. #ifdef __cplusplus
  136. }  // extern "C"
  137. #endif
  138.  
  139.  
  140. #endif
  141.