summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/radeonsi/radeonsi_shader.h
blob: fe771cee660a83cd57d3915ec7b8fb111d50d1f5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/*
 * 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

#define SI_SGPR_CONST		0
#define SI_SGPR_SAMPLER		2
#define SI_SGPR_RESOURCE	4
#define SI_SGPR_VERTEX_BUFFER	6

#define SI_VS_NUM_USER_SGPR	8
#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_VERTEX_INDEX	4

/* 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[32];

	unsigned		noutput;
	struct si_shader_io	output[32];

	unsigned		ninterp;
	bool			uses_kill;
	bool			fs_write_all;
	unsigned		nr_cbufs;
};

struct si_shader_key {
	unsigned		export_16bpc:8;
	unsigned		nr_cbufs:4;
	unsigned		color_two_side:1;
	unsigned		alpha_func:3;
	unsigned		flatshade:1;
	float			alpha_ref;
};

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			spi_ps_input_ena;
	unsigned			spi_shader_col_format;
	unsigned			sprite_coord_enable;
	unsigned			so_strides[4];
	struct si_shader_key		key;
};

/* radeonsi_shader.c */
int si_pipe_shader_create(struct pipe_context *ctx, struct si_pipe_shader *shader,
			  struct si_shader_key key);
void si_pipe_shader_destroy(struct pipe_context *ctx, struct si_pipe_shader *shader);

#endif