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1 /*
2  * Copyright © 2022 Imagination Technologies Ltd.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
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 NONINFRINGEMENT. IN NO EVENT SHALL THE
18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  */
23 
24 #ifndef ROGUE_H
25 #define ROGUE_H
26 
27 #include <stddef.h>
28 #include <stdint.h>
29 
30 #include "compiler/shader_enums.h"
31 #include "nir/nir.h"
32 
33 /* All registers are 32-bit in size. */
34 #define ROGUE_REG_SIZE_BYTES 4
35 #define ROGUE_REG_UNUSED UINT32_MAX
36 
37 struct nir_spirv_specialization;
38 struct rogue_build_ctx;
39 struct rogue_shader;
40 
41 enum rogue_msaa_mode {
42    ROGUE_MSAA_MODE_UNDEF = 0, /* explicitly treat 0 as undefined */
43    /* One task for all samples. */
44    ROGUE_MSAA_MODE_PIXEL,
45    /* For on-edge pixels only: separate tasks for each sample. */
46    ROGUE_MSAA_MODE_SELECTIVE,
47    /* For all pixels: separate tasks for each sample. */
48    ROGUE_MSAA_MODE_FULL,
49 };
50 
51 /**
52  * \brief Shader binary.
53  */
54 struct rogue_shader_binary {
55    size_t size;
56    uint8_t data[];
57 };
58 
59 PUBLIC
60 nir_shader *rogue_spirv_to_nir(struct rogue_build_ctx *ctx,
61                                gl_shader_stage stage,
62                                const char *entry,
63                                size_t spirv_size,
64                                const uint32_t *spirv_data,
65                                unsigned num_spec,
66                                struct nir_spirv_specialization *spec);
67 
68 PUBLIC
69 struct rogue_shader_binary *rogue_to_binary(struct rogue_build_ctx *ctx,
70                                             const struct rogue_shader *shader);
71 
72 PUBLIC
73 struct rogue_shader *rogue_nir_to_rogue(struct rogue_build_ctx *ctx,
74                                         const nir_shader *nir);
75 #endif /* ROGUE_H */
76