117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
// =============================================
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// Aster: asset_loader.h
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// Copyright (c) 2020-2024 Anish Bhobe
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// =============================================
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#pragma once
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#include "global.h"
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#include "buffer.h"
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#include "render_resource_manager.h"
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#include "ecs_adapter.h"
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namespace tinygltf
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{
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class Model;
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struct Image;
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} // namespace tinygltf
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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 Material
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{
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vec4 m_AlbedoFactor; // 16 16
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vec3 m_EmissionFactor; // 12 28
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f32 m_MetalFactor; // 04 32
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f32 m_RoughFactor; // 04 36
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TextureHandle m_AlbedoTex; // 04 40
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TextureHandle m_NormalTex; // 04 44
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TextureHandle m_MetalRoughTex; // 04 48
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TextureHandle m_OcclusionTex; // 04 52
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TextureHandle m_EmissionTex; // 04 56
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f32 m_AlphaBlend; /* 04 60
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AlphaBlend < 0 means Opaque
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AlphaBlend > 1 means Blend
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AlphaBlend in [0,1] means cutoff */
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};
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// If this is changed, ensure the shaders are changed accordingly.
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static_assert(sizeof(Material) == 60);
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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<TextureHandle> m_Textures;
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eastl::vector<Entity> m_Entities;
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IndexHandle m_IndexHandle;
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GeometryHandle m_VertexPositionHandle;
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GeometryHandle m_VertexDataHandle;
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MaterialHandle m_MaterialHandle;
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Entity m_RootEntity;
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void Destroy(RenderResourceManager *resourceManager, EcsRegistry *registry);
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};
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struct CModel
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{
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};
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struct AssetLoader
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{
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RenderResourceManager *m_ResourceManager;
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entt::registry *m_Registry;
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vk::CommandPool m_CommandPool;
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vk::CommandBuffer m_CommandBuffer;
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vk::Queue m_TransferQueue;
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u32 m_TransferQueueIndex;
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u32 m_GraphicsQueueIndex;
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void LoadHdrImage(Texture *texture, 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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AssetLoader(RenderResourceManager *resourceManager, EcsRegistry *registry, vk::Queue transferQueue,
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u32 transferQueueIndex, u32 graphicsQueueIndex);
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~AssetLoader();
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AssetLoader(AssetLoader &&other) noexcept;
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AssetLoader &operator=(AssetLoader &&other) noexcept;
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private:
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TextureHandle LoadImageToGpu(StagingBuffer *stagingBuffer, tinygltf::Image *image, bool isSrgb) const;
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void
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ProcessNode(tinygltf::Model *model, eastl::vector<vec4> *vertexPositions, eastl::vector<VertexData> *vertexData,
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eastl::vector<u32> *indices, eastl::vector<Entity> *entities,
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const std::function<u32(i32)> &loadMaterial, int current, Entity parent);
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public:
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DISALLOW_COPY_AND_ASSIGN(AssetLoader);
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};
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void GenerateMipMaps(vk::CommandBuffer commandBuffer, Texture *texture, vk::ImageLayout initialLayout,
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vk::ImageLayout finalLayout,
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vk::PipelineStageFlags2 prevStage = vk::PipelineStageFlagBits2::eAllCommands,
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vk::PipelineStageFlags2 finalStage = vk::PipelineStageFlagBits2::eAllCommands); |