148 lines
4.6 KiB
C++
148 lines
4.6 KiB
C++
// =============================================
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// Aster: asset_loader.h
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// Copyright (c) 2020-2025 Anish Bhobe
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// =============================================
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#pragma once
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#include "aster/aster.h"
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#include "aster/core/buffer.h"
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#include "aster/systems/resource.h"
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#include "nodes.h"
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#include "tiny_gltf.h"
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namespace systems
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{
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class TransferContext;
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}
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namespace systems
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{
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class Device;
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class ResourceManager;
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class SamplerManager;
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class BufferManager;
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class ImageManager;
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class CommitManager;
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} // namespace systems
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namespace tinygltf
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{
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struct Image;
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}
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struct Image;
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struct Texture;
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constexpr auto GLTF_ASCII_FILE_EXTENSION = ".gltf";
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constexpr auto GLTF_BINARY_FILE_EXTENSION = ".glb";
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struct MeshPrimitive
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{
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u32 m_VertexOffset;
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u32 m_FirstIndex;
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u32 m_IndexCount;
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i32 m_MaterialIdx; // <0 for invalid
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i32 m_TransformIdx;
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};
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struct Material
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{
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vec4 m_AlbedoFactor; // 16 16
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vec4 m_EmissionFactor; // 16 32
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systems::ResId<TextureView> m_AlbedoTex; // 08 40
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systems::ResId<TextureView> m_NormalTex; // 08 48
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systems::ResId<TextureView> m_MetalRoughTex; // 08 56
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systems::ResId<TextureView> m_OcclusionTex; // 08 64
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systems::ResId<TextureView> m_EmissionTex; // 08 72
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f32 m_MetalFactor; // 04 76
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f32 m_RoughFactor; // 04 80
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};
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struct VertexData
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{
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vec4 m_Normal;
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vec2 m_TexCoord0 = vec2{0.0f, 0.0f};
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vec2 m_TexCoord1 = vec2{0.0f, 0.0f};
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vec4 m_Color0 = vec4{1.0f, 1.0f, 1.0f, 1.0f};
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};
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struct Model
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{
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eastl::vector<systems::ResId<TextureView>> m_TextureHandles;
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Nodes m_Nodes;
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struct ModelHandles
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{
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systems::ResId<Buffer> m_VertexPositionHandle;
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systems::ResId<Buffer> m_VertexDataHandle;
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systems::ResId<Buffer> m_MaterialsHandle;
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systems::ResId<Buffer> m_NodeHandle;
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} m_Handles;
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Ref<Buffer> m_NodeBuffer;
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Ref<IndexBuffer> m_IndexBuffer;
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eastl::vector<MeshPrimitive> m_MeshPrimitives;
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[[nodiscard]] mat4 const &GetModelTransform() const;
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void SetModelTransform(mat4 const &transform);
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void Update();
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Model(eastl::vector<systems::ResId<TextureView>> &textureHandles, Nodes &&nodes, Ref<Buffer> nodeBuffer,
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ModelHandles &handles, Ref<IndexBuffer> indexBuffer, eastl::vector<MeshPrimitive> const &meshPrimitives);
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~Model() = default;
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Model(Model &&other) noexcept = default;
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Model &operator=(Model &&other) noexcept = default;
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Model(Model const &) = delete;
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Model const &operator=(Model const &) = delete;
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};
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struct AssetLoader
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{
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systems::Device *m_Device;
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Ref<TextureView> LoadHdrImage(cstr path, cstr name = nullptr) const;
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Model LoadModelToGpu(cstr path, cstr name = nullptr);
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constexpr static auto ANormal = "NORMAL";
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constexpr static auto APosition = "POSITION";
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constexpr static auto ATangent = "TANGENT";
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constexpr static auto ATexCoord0 = "TEXCOORD_0";
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constexpr static auto ATexCoord1 = "TEXCOORD_1";
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constexpr static auto AColor0 = "COLOR_0";
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constexpr static auto AJoints0 = "JOINTS_0";
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constexpr static auto AWeights0 = "WEIGHTS_0";
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explicit AssetLoader(systems::Device &device);
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private:
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systems::ResId<TextureView>
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LoadImageToGpu(systems::TransferContext &context, tinygltf::Image *image, bool isSrgb, cstr name = nullptr) const;
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};
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void
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GenerateMipMaps(systems::TransferContext &context, Ref<Texture> const &textureView, vk::ImageLayout initialLayout,
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vk::ImageLayout finalLayout, vk::PipelineStageFlags2 prevStage, vk::PipelineStageFlags2 finalStage);
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void
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GenerateMipMaps(systems::TransferContext &context, concepts::ImageRefTo<Texture> auto &texture,
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vk::ImageLayout initialLayout, vk::ImageLayout finalLayout,
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vk::PipelineStageFlags2 prevStage = vk::PipelineStageFlagBits2::eAllCommands,
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vk::PipelineStageFlags2 finalStage = vk::PipelineStageFlagBits2::eAllCommands)
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{
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GenerateMipMaps(context, systems::CastImage<Texture>(texture), initialLayout, finalLayout, prevStage, finalStage);
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}
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void
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GenerateMipMaps(systems::TransferContext &context, concepts::ViewRefTo<Texture> auto &texture,
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vk::ImageLayout initialLayout, vk::ImageLayout finalLayout,
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vk::PipelineStageFlags2 prevStage = vk::PipelineStageFlagBits2::eAllCommands,
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vk::PipelineStageFlags2 finalStage = vk::PipelineStageFlagBits2::eAllCommands)
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{
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GenerateMipMaps(context, systems::CastImage<Texture>(texture->m_Image), initialLayout, finalLayout, prevStage,
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finalStage);
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} |