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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 RADEONSI_SHADER_H
#define RADEONSI_SHADER_H
#include <llvm-c/Core.h> /* LLVMModuleRef */
#define SI_SGPR_CONST 0
#define SI_SGPR_SAMPLER 2
#define SI_SGPR_RESOURCE 4
#define SI_SGPR_VERTEX_BUFFER 6 /* VS only */
#define SI_SGPR_SO_BUFFER 8 /* VS only, stream-out */
#define SI_SGPR_START_INSTANCE 10 /* VS only */
#define SI_SGPR_ALPHA_REF 6 /* PS only */
#define SI_VS_NUM_USER_SGPR 11
#define SI_PS_NUM_USER_SGPR 7
/* LLVM function parameter indices */
#define SI_PARAM_CONST 0
#define SI_PARAM_SAMPLER 1
#define SI_PARAM_RESOURCE 2
/* VS only parameters */
#define SI_PARAM_VERTEX_BUFFER 3
#define SI_PARAM_SO_BUFFER 4
#define SI_PARAM_START_INSTANCE 5
/* the other VS parameters are assigned dynamically */
/* PS only parameters */
#define SI_PARAM_ALPHA_REF 3
#define SI_PARAM_PRIM_MASK 4
#define SI_PARAM_PERSP_SAMPLE 5
#define SI_PARAM_PERSP_CENTER 6
#define SI_PARAM_PERSP_CENTROID 7
#define SI_PARAM_PERSP_PULL_MODEL 8
#define SI_PARAM_LINEAR_SAMPLE 9
#define SI_PARAM_LINEAR_CENTER 10
#define SI_PARAM_LINEAR_CENTROID 11
#define SI_PARAM_LINE_STIPPLE_TEX 12
#define SI_PARAM_POS_X_FLOAT 13
#define SI_PARAM_POS_Y_FLOAT 14
#define SI_PARAM_POS_Z_FLOAT 15
#define SI_PARAM_POS_W_FLOAT 16
#define SI_PARAM_FRONT_FACE 17
#define SI_PARAM_ANCILLARY 18
#define SI_PARAM_SAMPLE_COVERAGE 19
#define SI_PARAM_POS_FIXED_PT 20
struct si_shader_io {
unsigned name;
int sid;
unsigned param_offset;
unsigned interpolate;
bool centroid;
};
struct si_pipe_shader;
struct si_pipe_shader_selector {
struct si_pipe_shader *current;
struct tgsi_token *tokens;
struct pipe_stream_output_info so;
unsigned num_shaders;
/* PIPE_SHADER_[VERTEX|FRAGMENT|...] */
unsigned type;
/* 1 when the shader contains
* TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS, otherwise it's 0.
* Used to determine whether we need to include nr_cbufs in the key */
unsigned fs_write_all;
};
struct si_shader {
unsigned ninput;
struct si_shader_io input[40];
unsigned noutput;
struct si_shader_io output[40];
unsigned ninterp;
bool uses_kill;
bool uses_instanceid;
bool fs_write_all;
bool vs_out_misc_write;
bool vs_out_point_size;
unsigned nr_cbufs;
unsigned nr_pos_exports;
unsigned clip_dist_write;
};
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[PIPE_MAX_ATTRIBS];
unsigned ucps_enabled:2;
} vs;
};
struct si_pipe_shader {
struct si_pipe_shader_selector *selector;
struct si_pipe_shader *next_variant;
struct si_shader shader;
struct si_pm4_state *pm4;
struct r600_resource *bo;
unsigned num_sgprs;
unsigned num_vgprs;
unsigned lds_size;
unsigned spi_ps_input_ena;
unsigned spi_shader_col_format;
unsigned cb_shader_mask;
bool cb0_is_integer;
unsigned sprite_coord_enable;
union si_shader_key key;
};
/* radeonsi_shader.c */
int si_pipe_shader_create(struct pipe_context *ctx, struct si_pipe_shader *shader);
int si_pipe_shader_create(struct pipe_context *ctx, struct si_pipe_shader *shader);
int si_compile_llvm(struct r600_context *rctx, struct si_pipe_shader *shader,
LLVMModuleRef mod);
void si_pipe_shader_destroy(struct pipe_context *ctx, struct si_pipe_shader *shader);
#endif
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