1// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#ifndef VK_CONFIG_HPP_
16#define VK_CONFIG_HPP_
17
18#include "Version.h"
19
20#include <Vulkan/VulkanPlatform.h>
21
22namespace vk
23{
24
25// Note: Constant array initialization requires a string literal.
26// constexpr char* or char[] does not work for that purpose.
27#define SWIFTSHADER_DEVICE_NAME "SwiftShader Device" // Max length: VK_MAX_PHYSICAL_DEVICE_NAME_SIZE
28#define SWIFTSHADER_UUID "SwiftShaderUUID" // Max length: VK_UUID_SIZE (16)
29
30enum
31{
32 API_VERSION = VK_API_VERSION_1_1,
33 DRIVER_VERSION = VK_MAKE_VERSION(MAJOR_VERSION, MINOR_VERSION, PATCH_VERSION),
34 VENDOR_ID = 0x1AE0, // Google, Inc.: https://pcisig.com/google-inc-1
35 DEVICE_ID = 0xC0DE, // SwiftShader (placeholder)
36};
37
38enum
39{
40 // Alignment of all Vulkan objects, pools, device memory, images, buffers, descriptors.
41 REQUIRED_MEMORY_ALIGNMENT = 16, // 16 bytes for 128-bit vector types.
42
43 MIN_TEXEL_BUFFER_OFFSET_ALIGNMENT = 256,
44 MIN_UNIFORM_BUFFER_OFFSET_ALIGNMENT = 256,
45 MIN_STORAGE_BUFFER_OFFSET_ALIGNMENT = 256,
46
47 MEMORY_TYPE_GENERIC_BIT = 0x1, // Generic system memory.
48};
49
50enum
51{
52 MAX_IMAGE_LEVELS_1D = 14,
53 MAX_IMAGE_LEVELS_2D = 14,
54 MAX_IMAGE_LEVELS_3D = 11,
55 MAX_IMAGE_LEVELS_CUBE = 14,
56 MAX_IMAGE_ARRAY_LAYERS = 2048,
57 MAX_SAMPLER_LOD_BIAS = 15,
58};
59
60enum
61{
62 MAX_BOUND_DESCRIPTOR_SETS = 4,
63 MAX_VERTEX_INPUT_BINDINGS = 16,
64 MAX_PUSH_CONSTANT_SIZE = 128,
65};
66
67enum
68{
69 MAX_DESCRIPTOR_SET_UNIFORM_BUFFERS_DYNAMIC = 8,
70 MAX_DESCRIPTOR_SET_STORAGE_BUFFERS_DYNAMIC = 4,
71 MAX_DESCRIPTOR_SET_COMBINED_BUFFERS_DYNAMIC =
72 MAX_DESCRIPTOR_SET_UNIFORM_BUFFERS_DYNAMIC +
73 MAX_DESCRIPTOR_SET_STORAGE_BUFFERS_DYNAMIC,
74};
75
76enum
77{
78 MAX_POINT_SIZE = 1, // Large points are not supported. If/when we turn this on, must be >= 64.
79};
80
81constexpr int SUBPIXEL_PRECISION_BITS = 4;
82constexpr float SUBPIXEL_PRECISION_FACTOR = static_cast<float>(1 << SUBPIXEL_PRECISION_BITS);
83constexpr int SUBPIXEL_PRECISION_MASK = 0xFFFFFFFF >> (32 - SUBPIXEL_PRECISION_BITS);
84
85}
86
87#if VK_USE_PLATFORM_XLIB_KHR || VK_USE_PLATFORM_ANDROID_KHR
88#define SWIFTSHADER_EXTERNAL_MEMORY_LINUX_MEMFD 1
89#define SWIFTSHADER_EXTERNAL_SEMAPHORE_LINUX_MEMFD 1
90#endif
91
92#if VK_USE_PLATFORM_FUCHSIA
93#define SWIFTSHADER_EXTERNAL_SEMAPHORE_ZIRCON_EVENT 1
94#endif
95
96#endif // VK_CONFIG_HPP_
97