shaders/shared.h
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // SPDX-License-Identifier: BSD-3-Clause | ||
| 2 | /// @file shared.h | ||
| 3 | /// @brief What C++ sees of the types shaders share with it. A shader file's shared part, before | ||
| 4 | /// its `#ifndef __cplusplus` code, is read by both languages: Slang's scalar types are glm's here, | ||
| 5 | /// laid out alike as Slang lays out data reached through `BufferRef` (packed, scalar alignment). | ||
| 6 | #pragma once | ||
| 7 | |||
| 8 | #include <glm/glm.hpp> | ||
| 9 | |||
| 10 | #include <cstdint> | ||
| 11 | |||
| 12 | namespace ernie::shaders { | ||
| 13 | |||
| 14 | using uint = std::uint32_t; | ||
| 15 | using uint2 = glm::uvec2; | ||
| 16 | using uint3 = glm::uvec3; | ||
| 17 | using float2 = glm::vec2; | ||
| 18 | using float3 = glm::vec3; | ||
| 19 | using float4 = glm::vec4; | ||
| 20 | using std::uint64_t; | ||
| 21 | |||
| 22 | /// @brief A buffer a shader reads or writes `T`s of, as buffer_ref.slang's `BufferRef`: 8 bytes, | ||
| 23 | /// a device address on Vulkan (an arena index and offset on WebGPU), 0 for none. | ||
| 24 | 2335 | template <typename T> struct BufferRef { | |
| 25 | 8852 | std::uint64_t handle = 0; | |
| 26 | 8852 | bool operator==(const BufferRef&) const = default; | |
| 27 | }; | ||
| 28 | |||
| 29 | } // namespace ernie::shaders | ||
| 30 |