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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/*
* Copyright 2017 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.
*/
#ifndef AC_SHADER_ABI_H
#define AC_SHADER_ABI_H
#include "ac_shader_args.h"
#include "compiler/shader_enums.h"
#include <llvm-c/Core.h>
#include <assert.h>
#define AC_LLVM_MAX_OUTPUTS (VARYING_SLOT_VAR31 + 1)
#define AC_MAX_INLINE_PUSH_CONSTS 8
enum ac_descriptor_type
{
AC_DESC_IMAGE,
AC_DESC_FMASK,
AC_DESC_SAMPLER,
AC_DESC_BUFFER,
AC_DESC_PLANE_0,
AC_DESC_PLANE_1,
AC_DESC_PLANE_2,
};
/* Document the shader ABI during compilation. This is what allows radeonsi and
* radv to share a compiler backend.
*/
struct ac_shader_abi {
LLVMValueRef outputs[AC_LLVM_MAX_OUTPUTS * 4];
/* These input registers sometimes need to be fixed up. */
LLVMValueRef vertex_id;
LLVMValueRef instance_id;
LLVMValueRef persp_centroid, linear_centroid;
LLVMValueRef color0, color1;
LLVMValueRef user_data;
/* For VS and PS: pre-loaded shader inputs.
*
* Currently only used for NIR shaders; indexed by variables'
* driver_location.
*/
LLVMValueRef *inputs;
/* Varying -> attribute number mapping. Also NIR-only */
unsigned fs_input_attr_indices[MAX_VARYING];
void (*emit_outputs)(struct ac_shader_abi *abi, unsigned max_outputs, LLVMValueRef *addrs);
void (*emit_vertex)(struct ac_shader_abi *abi, unsigned stream, LLVMValueRef *addrs);
void (*emit_primitive)(struct ac_shader_abi *abi, unsigned stream);
void (*emit_vertex_with_counter)(struct ac_shader_abi *abi, unsigned stream,
LLVMValueRef vertexidx, LLVMValueRef *addrs);
LLVMValueRef (*load_inputs)(struct ac_shader_abi *abi,
unsigned driver_location, unsigned component,
unsigned num_components, unsigned vertex_index,
LLVMTypeRef type);
LLVMValueRef (*load_tess_varyings)(struct ac_shader_abi *abi, LLVMTypeRef type,
LLVMValueRef vertex_index, LLVMValueRef param_index,
unsigned driver_location, unsigned component,
unsigned num_components,
bool load_inputs, bool vertex_index_is_invoc_id);
void (*store_tcs_outputs)(struct ac_shader_abi *abi,
LLVMValueRef vertex_index, LLVMValueRef param_index,
LLVMValueRef src, unsigned writemask,
unsigned component, unsigned location, unsigned driver_location);
LLVMValueRef (*load_tess_coord)(struct ac_shader_abi *abi);
LLVMValueRef (*load_patch_vertices_in)(struct ac_shader_abi *abi);
LLVMValueRef (*load_tess_level)(struct ac_shader_abi *abi, unsigned varying_id,
bool load_default_state);
LLVMValueRef (*load_ubo)(struct ac_shader_abi *abi,
unsigned desc_set, unsigned binding,
bool valid_binding, LLVMValueRef index);
/**
* Load the descriptor for the given buffer.
*
* \param buffer the buffer as presented in NIR: this is the descriptor
* in Vulkan, and the buffer index in OpenGL/Gallium
* \param write whether buffer contents will be written
*/
LLVMValueRef (*load_ssbo)(struct ac_shader_abi *abi, LLVMValueRef buffer, bool write);
/**
* Load a descriptor associated to a sampler.
*
* \param descriptor_set the descriptor set index (only for Vulkan)
* \param base_index the base index of the sampler variable
* \param constant_index constant part of an array index (or 0, if the
* sampler variable is not an array)
* \param index non-constant part of an array index (may be NULL)
* \param desc_type the type of descriptor to load
* \param image whether the descriptor is loaded for an image operation
*/
LLVMValueRef (*load_sampler_desc)(struct ac_shader_abi *abi, unsigned descriptor_set,
unsigned base_index, unsigned constant_index,
LLVMValueRef index, enum ac_descriptor_type desc_type,
bool image, bool write, bool bindless);
/**
* Load a Vulkan-specific resource.
*
* \param index resource index
* \param desc_set descriptor set
* \param binding descriptor set binding
*/
LLVMValueRef (*load_resource)(struct ac_shader_abi *abi, LLVMValueRef index, unsigned desc_set,
unsigned binding);
LLVMValueRef (*load_sample_position)(struct ac_shader_abi *abi, LLVMValueRef sample_id);
LLVMValueRef (*load_local_group_size)(struct ac_shader_abi *abi);
LLVMValueRef (*load_sample_mask_in)(struct ac_shader_abi *abi);
LLVMValueRef (*load_base_vertex)(struct ac_shader_abi *abi);
LLVMValueRef (*emit_fbfetch)(struct ac_shader_abi *abi);
/* Whether to clamp the shadow reference value to [0,1]on GFX8. Radeonsi currently
* uses it due to promoting D16 to D32, but radv needs it off. */
bool clamp_shadow_reference;
bool interp_at_sample_force_center;
/* Whether bounds checks are required */
bool robust_buffer_access;
/* Check for Inf interpolation coeff */
bool kill_ps_if_inf_interp;
/* Whether undef values must be converted to zero */
bool convert_undef_to_zero;
/* Clamp div by 0 (so it won't produce NaN) */
bool clamp_div_by_zero;
};
#endif /* AC_SHADER_ABI_H */
|
