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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 

 *	Michel Dänzer 

 *      Christian König 

 */

#ifndef RADEONSI_SHADER_H

#define RADEONSI_SHADER_H

#include  /* LLVMModuleRef */

#define SI_SGPR_CONST		0

#define SI_SGPR_SAMPLER		2

#define SI_SGPR_RESOURCE	4

#define SI_SGPR_VERTEX_BUFFER	6

#define SI_SGPR_START_INSTANCE	8

#define SI_VS_NUM_USER_SGPR	9

#define SI_PS_NUM_USER_SGPR	6

/* 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_START_INSTANCE	4

#define SI_PARAM_VERTEX_ID	5

#define SI_PARAM_DUMMY_0	6

#define SI_PARAM_DUMMY_1	7

#define SI_PARAM_INSTANCE_ID	8

/* PS only parameters */

#define SI_PARAM_PRIM_MASK		3

#define SI_PARAM_PERSP_SAMPLE		4

#define SI_PARAM_PERSP_CENTER		5

#define SI_PARAM_PERSP_CENTROID		6

#define SI_PARAM_PERSP_PULL_MODEL	7

#define SI_PARAM_LINEAR_SAMPLE		8

#define SI_PARAM_LINEAR_CENTER		9

#define SI_PARAM_LINEAR_CENTROID	10

#define SI_PARAM_LINE_STIPPLE_TEX	11

#define SI_PARAM_POS_X_FLOAT		12

#define SI_PARAM_POS_Y_FLOAT		13

#define SI_PARAM_POS_Z_FLOAT		14

#define SI_PARAM_POS_W_FLOAT		15

#define SI_PARAM_FRONT_FACE		16

#define SI_PARAM_ANCILLARY		17

#define SI_PARAM_SAMPLE_COVERAGE	18

#define SI_PARAM_POS_FIXED_PT		19

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;

		float		alpha_ref;

	} ps;

	struct {

		unsigned	instance_divisors[PIPE_MAX_ATTRIBS];

	} 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 si_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;

	unsigned			sprite_coord_enable;

	unsigned			so_strides[4];

	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