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/*
* Copyright 2012 Advanced Micro Devices, Inc.
*
* 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.
*
* Authors:
* Tom Stellard <thomas.stellard@amd.com>
* Michel Dänzer <michel.daenzer@amd.com>
* Christian König <christian.koenig@amd.com>
*/
#ifndef SI_SHADER_H
#define SI_SHADER_H
#include <llvm-c/Core.h> /* LLVMModuleRef */
#include "tgsi/tgsi_scan.h"
#include "si_state.h"
#define SI_SGPR_RW_BUFFERS 0 /* rings (& stream-out, VS only) */
#define SI_SGPR_CONST 2
#define SI_SGPR_SAMPLER 4
#define SI_SGPR_RESOURCE 6
#define SI_SGPR_VERTEX_BUFFER 8 /* VS only */
#define SI_SGPR_BASE_VERTEX 10 /* VS only */
#define SI_SGPR_START_INSTANCE 11 /* VS only */
#define SI_SGPR_ALPHA_REF 8 /* PS only */
#define SI_VS_NUM_USER_SGPR 12
#define SI_GS_NUM_USER_SGPR 8
#define SI_GSCOPY_NUM_USER_SGPR 4
#define SI_PS_NUM_USER_SGPR 9
/* LLVM function parameter indices */
#define SI_PARAM_RW_BUFFERS 0
#define SI_PARAM_CONST 1
#define SI_PARAM_SAMPLER 2
#define SI_PARAM_RESOURCE 3
/* VS only parameters */
#define SI_PARAM_VERTEX_BUFFER 4
#define SI_PARAM_BASE_VERTEX 5
#define SI_PARAM_START_INSTANCE 6
/* the other VS parameters are assigned dynamically */
/* ES only parameters */
#define SI_PARAM_ES2GS_OFFSET 7
/* GS only parameters */
#define SI_PARAM_GS2VS_OFFSET 4
#define SI_PARAM_GS_WAVE_ID 5
#define SI_PARAM_VTX0_OFFSET 6
#define SI_PARAM_VTX1_OFFSET 7
#define SI_PARAM_PRIMITIVE_ID 8
#define SI_PARAM_VTX2_OFFSET 9
#define SI_PARAM_VTX3_OFFSET 10
#define SI_PARAM_VTX4_OFFSET 11
#define SI_PARAM_VTX5_OFFSET 12
#define SI_PARAM_GS_INSTANCE_ID 13
/* PS only parameters */
#define SI_PARAM_ALPHA_REF 4
#define SI_PARAM_PRIM_MASK 5
#define SI_PARAM_PERSP_SAMPLE 6
#define SI_PARAM_PERSP_CENTER 7
#define SI_PARAM_PERSP_CENTROID 8
#define SI_PARAM_PERSP_PULL_MODEL 9
#define SI_PARAM_LINEAR_SAMPLE 10
#define SI_PARAM_LINEAR_CENTER 11
#define SI_PARAM_LINEAR_CENTROID 12
#define SI_PARAM_LINE_STIPPLE_TEX 13
#define SI_PARAM_POS_X_FLOAT 14
#define SI_PARAM_POS_Y_FLOAT 15
#define SI_PARAM_POS_Z_FLOAT 16
#define SI_PARAM_POS_W_FLOAT 17
#define SI_PARAM_FRONT_FACE 18
#define SI_PARAM_ANCILLARY 19
#define SI_PARAM_SAMPLE_COVERAGE 20
#define SI_PARAM_POS_FIXED_PT 21
#define SI_NUM_PARAMS (SI_PARAM_POS_FIXED_PT + 1)
struct si_shader_input {
unsigned name;
int sid;
unsigned param_offset;
unsigned index;
unsigned interpolate;
bool centroid;
};
struct si_shader_output {
unsigned name;
int sid;
unsigned param_offset;
unsigned index;
unsigned usage;
};
struct si_shader;
struct si_shader_selector {
struct si_shader *current;
struct tgsi_token *tokens;
struct pipe_stream_output_info so;
struct tgsi_shader_info info;
unsigned num_shaders;
/* PIPE_SHADER_[VERTEX|FRAGMENT|...] */
unsigned type;
unsigned gs_output_prim;
unsigned gs_max_out_vertices;
uint64_t gs_used_inputs; /* mask of "get_unique_index" bits */
};
union si_shader_key {
struct {
unsigned export_16bpc:8;
unsigned nr_cbufs:4;
unsigned color_two_side:1;
unsigned alpha_func:3;
unsigned flatshade:1;
unsigned alpha_to_one:1;
} ps;
struct {
unsigned instance_divisors[SI_NUM_VERTEX_BUFFERS];
/* The mask of "get_unique_index" bits, needed for ES,
* it describes how the ES->GS ring buffer is laid out. */
uint64_t gs_used_inputs;
unsigned ucps_enabled:2;
unsigned as_es:1;
} vs;
};
struct si_shader {
struct si_shader_selector *selector;
struct si_shader *next_variant;
struct si_shader *gs_copy_shader;
struct si_pm4_state *pm4;
struct r600_resource *bo;
struct r600_resource *scratch_bo;
unsigned num_sgprs;
unsigned num_vgprs;
unsigned lds_size;
unsigned spi_ps_input_ena;
unsigned scratch_bytes_per_wave;
unsigned spi_shader_col_format;
unsigned spi_shader_z_format;
unsigned db_shader_control;
unsigned cb_shader_mask;
union si_shader_key key;
unsigned ninput;
struct si_shader_input input[40];
unsigned noutput;
struct si_shader_output output[40];
unsigned nparam;
bool uses_instanceid;
bool vs_out_misc_write;
bool vs_out_point_size;
bool vs_out_edgeflag;
bool vs_out_layer;
unsigned nr_pos_exports;
unsigned clip_dist_write;
bool is_gs_copy_shader;
};
static inline struct si_shader* si_get_vs_state(struct si_context *sctx)
{
if (sctx->gs_shader)
return sctx->gs_shader->current->gs_copy_shader;
else
return sctx->vs_shader->current;
}
/* radeonsi_shader.c */
int si_shader_create(struct si_screen *sscreen, struct si_shader *shader);
int si_compile_llvm(struct si_screen *sscreen, struct si_shader *shader,
LLVMModuleRef mod);
void si_shader_destroy(struct pipe_context *ctx, struct si_shader *shader);
unsigned si_shader_io_get_unique_index(unsigned semantic_name, unsigned index);
#endif
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