| // Copyright 2018 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef VK_CONFIG_HPP_ |
| #define VK_CONFIG_HPP_ |
| |
| #include "Version.hpp" |
| #include "Device/Config.hpp" |
| #include "Vulkan/VulkanPlatform.hpp" |
| #include "spirv-tools/libspirv.h" |
| |
| namespace vk { |
| |
| // Note: Constant array initialization requires a string literal. |
| // constexpr char* or char[] does not work for that purpose. |
| #define SWIFTSHADER_DEVICE_NAME "SwiftShader Device" // Max length: VK_MAX_PHYSICAL_DEVICE_NAME_SIZE |
| #define SWIFTSHADER_UUID "SwiftShaderUUID" // Max length: VK_UUID_SIZE (16) |
| |
| constexpr spv_target_env SPIRV_VERSION = SPV_ENV_VULKAN_1_3; |
| |
| constexpr uint32_t API_VERSION = VK_API_VERSION_1_3; |
| constexpr uint32_t DRIVER_VERSION = VK_MAKE_VERSION(MAJOR_VERSION, MINOR_VERSION, PATCH_VERSION); |
| constexpr uint32_t VENDOR_ID = 0x1AE0; // Google, Inc.: https://pcisig.com/google-inc-1 |
| constexpr uint32_t DEVICE_ID = 0xC0DE; // SwiftShader (placeholder) |
| |
| // "Allocations returned by vkAllocateMemory are guaranteed to meet any alignment requirement of the implementation." |
| constexpr VkDeviceSize DEVICE_MEMORY_ALLOCATION_ALIGNMENT = 256; |
| |
| constexpr VkDeviceSize MIN_MEMORY_MAP_ALIGNMENT = 64; |
| static_assert(DEVICE_MEMORY_ALLOCATION_ALIGNMENT >= MIN_MEMORY_MAP_ALIGNMENT); |
| |
| constexpr VkDeviceSize MIN_IMPORTED_HOST_POINTER_ALIGNMENT = 4096; |
| static_assert(MIN_IMPORTED_HOST_POINTER_ALIGNMENT >= DEVICE_MEMORY_ALLOCATION_ALIGNMENT); |
| |
| // Vulkan 1.2 requires buffer offset alignment to be at most 256. |
| constexpr VkDeviceSize MIN_TEXEL_BUFFER_OFFSET_ALIGNMENT = 256; |
| constexpr VkDeviceSize MIN_UNIFORM_BUFFER_OFFSET_ALIGNMENT = 256; |
| constexpr VkDeviceSize MIN_STORAGE_BUFFER_OFFSET_ALIGNMENT = 256; |
| static_assert(DEVICE_MEMORY_ALLOCATION_ALIGNMENT >= MIN_TEXEL_BUFFER_OFFSET_ALIGNMENT); |
| static_assert(DEVICE_MEMORY_ALLOCATION_ALIGNMENT >= MIN_UNIFORM_BUFFER_OFFSET_ALIGNMENT); |
| static_assert(DEVICE_MEMORY_ALLOCATION_ALIGNMENT >= MIN_STORAGE_BUFFER_OFFSET_ALIGNMENT); |
| |
| // Alignment of all other Vulkan resources. |
| constexpr VkDeviceSize MEMORY_REQUIREMENTS_OFFSET_ALIGNMENT = 16; // 16 bytes for 128-bit vector types. |
| static_assert(DEVICE_MEMORY_ALLOCATION_ALIGNMENT >= MEMORY_REQUIREMENTS_OFFSET_ALIGNMENT); |
| |
| constexpr VkDeviceSize HOST_MEMORY_ALLOCATION_ALIGNMENT = 16; // 16 bytes for 128-bit vector types. |
| |
| constexpr uint32_t MEMORY_TYPE_GENERIC_BIT = 0x1; // Generic system memory. |
| |
| constexpr uint32_t MAX_IMAGE_LEVELS_1D = 15; |
| constexpr uint32_t MAX_IMAGE_LEVELS_2D = 15; |
| constexpr uint32_t MAX_IMAGE_LEVELS_3D = 12; |
| constexpr uint32_t MAX_IMAGE_LEVELS_CUBE = 15; |
| constexpr uint32_t MAX_IMAGE_ARRAY_LAYERS = 2048; |
| constexpr float MAX_SAMPLER_LOD_BIAS = 15.0; |
| |
| static_assert(MAX_IMAGE_LEVELS_1D <= sw::MIPMAP_LEVELS); |
| static_assert(MAX_IMAGE_LEVELS_2D <= sw::MIPMAP_LEVELS); |
| static_assert(MAX_IMAGE_LEVELS_3D <= sw::MIPMAP_LEVELS); |
| static_assert(MAX_IMAGE_LEVELS_CUBE <= sw::MIPMAP_LEVELS); |
| |
| constexpr uint32_t MAX_BOUND_DESCRIPTOR_SETS = 4; |
| constexpr uint32_t MAX_VERTEX_INPUT_BINDINGS = 16; |
| constexpr uint32_t MAX_PUSH_CONSTANT_SIZE = 128; |
| |
| constexpr uint32_t MAX_DESCRIPTOR_SET_UNIFORM_BUFFERS_DYNAMIC = 8; |
| constexpr uint32_t MAX_DESCRIPTOR_SET_STORAGE_BUFFERS_DYNAMIC = 4; |
| constexpr uint32_t MAX_DESCRIPTOR_SET_COMBINED_BUFFERS_DYNAMIC = |
| MAX_DESCRIPTOR_SET_UNIFORM_BUFFERS_DYNAMIC + |
| MAX_DESCRIPTOR_SET_STORAGE_BUFFERS_DYNAMIC; |
| |
| constexpr uint32_t MAX_COMPUTE_WORKGROUP_INVOCATIONS = 256; |
| |
| constexpr size_t MAX_INLINE_UNIFORM_BLOCK_SIZE = 256; |
| |
| constexpr float MAX_POINT_SIZE = 1023.0; |
| |
| constexpr int MAX_SAMPLER_ALLOCATION_COUNT = 4000; |
| |
| constexpr int SUBPIXEL_PRECISION_BITS = 4; |
| constexpr float SUBPIXEL_PRECISION_FACTOR = static_cast<float>(1 << SUBPIXEL_PRECISION_BITS); |
| constexpr int SUBPIXEL_PRECISION_MASK = 0xFFFFFFFF >> (32 - SUBPIXEL_PRECISION_BITS); |
| |
| constexpr int MAX_VIEWPORTS = 16; |
| |
| // TODO: The heap size should be configured based on available RAM. |
| constexpr VkDeviceSize PHYSICAL_DEVICE_HEAP_SIZE = 0x80000000ull; // 0x80000000 = 2 GiB |
| constexpr VkDeviceSize MAX_MEMORY_ALLOCATION_SIZE = 0x40000000ull; // 0x40000000 = 1 GiB |
| |
| // Memory offset calculations in 32-bit SIMD elements limit us to addressing at most 4 GiB. |
| // Signed arithmetic further restricts it to 2 GiB. |
| static_assert(MAX_MEMORY_ALLOCATION_SIZE <= 0x80000000ull, "maxMemoryAllocationSize must not exceed 2 GiB"); |
| |
| } // namespace vk |
| |
| #if defined(__linux__) && !defined(__ANDROID__) |
| # define SWIFTSHADER_EXTERNAL_MEMORY_OPAQUE_FD 1 |
| # define SWIFTSHADER_EXTERNAL_SEMAPHORE_OPAQUE_FD 1 |
| #elif defined(__ANDROID__) |
| # define SWIFTSHADER_EXTERNAL_SEMAPHORE_OPAQUE_FD 1 |
| #endif |
| #if defined(__APPLE__) |
| # define SWIFTSHADER_EXTERNAL_MEMORY_OPAQUE_FD 1 |
| #endif |
| |
| #endif // VK_CONFIG_HPP_ |