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/*
* Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef R600_SHADER_H
#define R600_SHADER_H
#include "r600_asm.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Valid shader configurations:
*
* API shaders VS | TCS | TES | GS |pass| PS
* are compiled as: | | | |thru|
* | | | | |
* Only VS & PS: VS | -- | -- | -- | -- | PS
* With GS: ES | -- | -- | GS | VS | PS
* With Tessel.: LS | HS | VS | -- | -- | PS
* With both: LS | HS | ES | GS | VS | PS
*/
struct r600_shader_io {
unsigned name;
unsigned gpr;
unsigned done;
unsigned sid;
int spi_sid;
unsigned interpolate;
unsigned ij_index;
unsigned interpolate_location; // TGSI_INTERPOLATE_LOC_CENTER, CENTROID, SAMPLE
unsigned lds_pos; /* for evergreen */
unsigned back_color_input;
unsigned write_mask;
int ring_offset;
unsigned uses_interpolate_at_centroid;
};
struct r600_shader_atomic {
unsigned start, end;
unsigned buffer_id;
unsigned hw_idx;
unsigned array_id;
};
struct r600_shader {
unsigned processor_type;
struct r600_bytecode bc;
unsigned ninput;
unsigned noutput;
unsigned nhwatomic;
unsigned nlds;
unsigned nsys_inputs;
struct r600_shader_io input[PIPE_MAX_SHADER_INPUTS];
struct r600_shader_io output[PIPE_MAX_SHADER_OUTPUTS];
struct r600_shader_atomic atomics[8];
unsigned nhwatomic_ranges;
boolean uses_kill;
boolean fs_write_all;
boolean two_side;
boolean needs_scratch_space;
/* Number of color outputs in the TGSI shader,
* sometimes it could be higher than nr_cbufs (bug?).
* Also with writes_all property on eg+ it will be set to max CB number */
unsigned nr_ps_max_color_exports;
/* Real number of ps color exports compiled in the bytecode */
unsigned nr_ps_color_exports;
unsigned ps_color_export_mask;
unsigned ps_export_highest;
/* bit n is set if the shader writes gl_ClipDistance[n] */
unsigned cc_dist_mask;
unsigned clip_dist_write;
unsigned cull_dist_write;
boolean vs_position_window_space;
/* flag is set if the shader writes VS_OUT_MISC_VEC (e.g. for PSIZE) */
boolean vs_out_misc_write;
boolean vs_out_point_size;
boolean vs_out_layer;
boolean vs_out_viewport;
boolean vs_out_edgeflag;
boolean has_txq_cube_array_z_comp;
boolean uses_tex_buffers;
boolean gs_prim_id_input;
boolean gs_tri_strip_adj_fix;
uint8_t ps_conservative_z;
/* Size in bytes of a data item in the ring(s) (single vertex data).
Stages with only one ring items 123 will be set to 0. */
unsigned ring_item_sizes[4];
unsigned indirect_files;
unsigned max_arrays;
unsigned num_arrays;
unsigned vs_as_es;
unsigned vs_as_ls;
unsigned vs_as_gs_a;
unsigned tes_as_es;
unsigned tcs_prim_mode;
unsigned ps_prim_id_input;
struct r600_shader_array * arrays;
boolean uses_doubles;
boolean uses_atomics;
boolean uses_images;
boolean uses_helper_invocation;
uint8_t atomic_base;
uint8_t rat_base;
uint8_t image_size_const_offset;
};
union r600_shader_key {
struct {
unsigned nr_cbufs:4;
unsigned first_atomic_counter:4;
unsigned image_size_const_offset:5;
unsigned color_two_side:1;
unsigned alpha_to_one:1;
} ps;
struct {
unsigned prim_id_out:8;
unsigned first_atomic_counter:4;
unsigned as_es:1; /* export shader */
unsigned as_ls:1; /* local shader */
unsigned as_gs_a:1;
} vs;
struct {
unsigned first_atomic_counter:4;
unsigned as_es:1;
} tes;
struct {
unsigned first_atomic_counter:4;
unsigned prim_mode:3;
} tcs;
struct {
unsigned first_atomic_counter:4;
unsigned tri_strip_adj_fix:1;
} gs;
};
struct r600_shader_array {
unsigned gpr_start;
unsigned gpr_count;
unsigned comp_mask;
};
struct r600_pipe_shader {
struct r600_pipe_shader_selector *selector;
struct r600_pipe_shader *next_variant;
/* for GS - corresponding copy shader (installed as VS) */
struct r600_pipe_shader *gs_copy_shader;
struct r600_shader shader;
struct r600_command_buffer command_buffer; /* register writes */
struct r600_resource *bo;
unsigned sprite_coord_enable;
unsigned flatshade;
unsigned pa_cl_vs_out_cntl;
unsigned nr_ps_color_outputs;
unsigned ps_color_export_mask;
union r600_shader_key key;
unsigned db_shader_control;
unsigned ps_depth_export;
unsigned enabled_stream_buffers_mask;
unsigned scratch_space_needed; /* size of scratch space (if > 0) counted in vec4 */
};
/* return the table index 0-5 for TGSI_INTERPOLATE_LINEAR/PERSPECTIVE and
TGSI_INTERPOLATE_LOC_CENTER/SAMPLE/COUNT. Other input values return -1. */
int eg_get_interpolator_index(unsigned interpolate, unsigned location);
int r600_get_lds_unique_index(unsigned semantic_name, unsigned index);
int generate_gs_copy_shader(struct r600_context *rctx,
struct r600_pipe_shader *gs,
struct pipe_stream_output_info *so);
#ifdef __cplusplus
} // extern "C"
#endif
#endif
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