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#include <stdio.h>
25#include <stdlib.h>
26#include <vulkan/vulkan.h>
27
28#include "compiler/shader_enums.h"
29#include "nir/nir.h"
30#include "nir/nir_builder.h"
31#include "pvr_private.h"
32#include "pvr_shader.h"
33#include "rogue/rogue.h"
34#include "rogue/rogue_shader.h"
35#include "spirv/nir_spirv.h"
36#include "vk_format.h"
37#include "vk_shader_module.h"
38#include "vk_util.h"
39
40/**
41 * \file pvr_shader.c
42 *
43 * \brief Contains top-level functions to compile SPIR-V -> NIR -> Rogue, and
44 * interfaces with the compiler.
45 */
46
47/**
48 * \brief Converts a SPIR-V shader to NIR.
49 *
50 * \param[in] ctx Shared multi-stage build context.
51 * \param[in] stage Shader stage.
52 * \param[in] create_info Shader creation info from Vulkan pipeline.
53 * \return A nir_shader* if successful, or NULL if unsuccessful.
54 */
55nir_shader *pvr_spirv_to_nir(struct rogue_build_ctx *ctx,
56                             gl_shader_stage stage,
57                             const VkPipelineShaderStageCreateInfo *create_info)
58{
59   VK_FROM_HANDLE(vk_shader_module, module, create_info->module);
60   struct nir_spirv_specialization *spec;
61   unsigned num_spec = 0;
62   nir_shader *nir;
63
64   spec =
65      vk_spec_info_to_nir_spirv(create_info->pSpecializationInfo, &num_spec);
66
67   nir = rogue_spirv_to_nir(ctx,
68                            stage,
69                            create_info->pName,
70                            module->size / sizeof(uint32_t),
71                            (uint32_t *)module->data,
72                            num_spec,
73                            spec);
74
75   free(spec);
76
77   return nir;
78}
79
80/**
81 * \brief Converts a NIR shader to Rogue.
82 *
83 * \param[in] ctx Shared multi-stage build context.
84 * \param[in] nir NIR shader.
85 * \return A rogue_shader* if successful, or NULL if unsuccessful.
86 */
87struct rogue_shader *pvr_nir_to_rogue(struct rogue_build_ctx *ctx,
88                                      nir_shader *nir)
89{
90   return rogue_nir_to_rogue(ctx, nir);
91}
92
93/**
94 * \brief Converts a Rogue shader to binary.
95 *
96 * \param[in] ctx Shared multi-stage build context.
97 * \param[in] shader Rogue shader.
98 * \return A rogue_shader_binary* if successful, or NULL if unsuccessful.
99 */
100struct rogue_shader_binary *pvr_rogue_to_binary(struct rogue_build_ctx *ctx,
101                                                struct rogue_shader *shader)
102{
103   return rogue_to_binary(ctx, shader);
104}
105