2 * Copyright (c) 2012-2015 Etnaviv Project
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sub license,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the
12 * next paragraph) shall be included in all copies or substantial portions
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Wladimir J. van der Laan <laanwj@gmail.com>
27 #ifndef H_ETNAVIV_COMPILER
28 #define H_ETNAVIV_COMPILER
30 #include "etnaviv_context.h"
31 #include "etnaviv_internal.h"
32 #include "pipe/p_compiler.h"
33 #include "pipe/p_shader_tokens.h"
35 /* XXX some of these are pretty arbitrary limits, may be better to switch
36 * to dynamic allocation at some point.
38 #define ETNA_MAX_TEMPS (64) /* max temp register count of all Vivante hw */
39 #define ETNA_MAX_TOKENS (2048)
40 #define ETNA_MAX_IMM (1024) /* max const+imm in 32-bit words */
41 #define ETNA_MAX_DECL (2048) /* max declarations */
42 #define ETNA_MAX_DEPTH (32)
43 #define ETNA_MAX_INSTRUCTIONS (2048)
45 /* compiler output per input/output */
46 struct etna_shader_inout
{
47 int reg
; /* native register */
48 struct tgsi_declaration_semantic semantic
; /* tgsi semantic name and index */
52 struct etna_shader_io_file
{
54 struct etna_shader_inout reg
[ETNA_NUM_INPUTS
];
57 /* shader object, for linking */
58 struct etna_shader_variant
{
59 uint32_t id
; /* for debug */
61 uint processor
; /* TGSI_PROCESSOR_... */
62 uint32_t code_size
; /* code size in uint32 words */
67 struct etna_shader_uniform_info uniforms
;
69 /* ETNA_DIRTY_* flags that, when set in context dirty, mean that the
70 * uniforms have to get (partial) reloaded. */
71 uint32_t uniforms_dirty_bits
;
73 /* inputs (for linking) for fs, the inputs must be in register 1..N */
74 struct etna_shader_io_file infile
;
76 /* outputs (for linking) */
77 struct etna_shader_io_file outfile
;
79 /* index into outputs (for linking) */
80 int output_count_per_semantic
[TGSI_SEMANTIC_COUNT
];
81 struct etna_shader_inout
* *output_per_semantic_list
; /* list of pointers to outputs */
82 struct etna_shader_inout
**output_per_semantic
[TGSI_SEMANTIC_COUNT
];
84 /* special outputs (vs only) */
85 int vs_pos_out_reg
; /* VS position output */
86 int vs_pointsize_out_reg
; /* VS point size output */
87 uint32_t vs_load_balancing
;
89 /* special outputs (ps only) */
90 int ps_color_out_reg
; /* color output register */
91 int ps_depth_out_reg
; /* depth output register */
93 /* unknown input property (XX_INPUT_COUNT, field UNK8) */
94 uint32_t input_count_unk8
;
98 uint32_t pa_attributes
;
99 uint8_t num_components
;
104 struct etna_shader_link_info
{
105 /* each PS input is annotated with the VS output reg */
106 unsigned num_varyings
;
107 struct etna_varying varyings
[ETNA_NUM_INPUTS
];
110 struct etna_shader_variant
*
111 etna_compile_shader(const struct etna_specs
*specs
, const struct tgsi_token
*tokens
);
114 etna_dump_shader(const struct etna_shader_variant
*shader
);
117 etna_link_shader(struct etna_shader_link_info
*info
,
118 const struct etna_shader_variant
*vs
, const struct etna_shader_variant
*fs
);
121 etna_destroy_shader(struct etna_shader_variant
*shader
);