Renderer.h

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/*
MIT License
 
Copyright (c) 2023 Víctor Falcón Zaro
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
 
#pragma once
 
#include "Camera.h"
#include "GraphicsAPI.h"
#include "Shader.h"
#include "Assets/PbrMaterial.h"
 
namespace Raito
{
    namespace Assets
    {
        struct Mesh;
        struct Texture;
    }
 
    struct SysWindow;
 
    namespace Renderer
    {
        class Surface
        {
        public:
            constexpr explicit Surface(u32 id) : m_Id(id) {}
            Surface() = default;
 
            NODISCARD constexpr u32 Id() const { return m_Id; }
 
            void Resize(u32 width, u32 height) const;
            NODISCARD u32 Width() const;
            NODISCARD u32 Height() const;
            NODISCARD u32 ColorAttachment(u32 id = 0) const;
            NODISCARD u32 DeferredAttachment(u32 id = 0) const;
            NODISCARD u32 DeferredLightAttachment(u32 id = 0) const;
            NODISCARD u32 DeferredDepth() const;
            NODISCARD u32 DepthAttachment() const;
            NODISCARD u32 SSAOAttachment()const;
            void Render() const;
        private:
            u32 m_Id;
        };
 
        struct RenderSurface
        {
            SysWindow* Window;
            Surface Surface;
        };
 
        enum class FrameBufferTextureFormat
        {
            None = 0,
 
            // Color
            RGBA8,
            RGBA16F,
            RGBA,
            RED_INTEGER,
 
            // Depth/stencil
            DEPTH24STENCIL8,
            DEPTH32F,
 
            // Defaults
            Depth = DEPTH24STENCIL8,
            DepthF = DEPTH32F
        };
 
        struct FrameBufferTextureData
        {
            FrameBufferTextureData() = default;
            FrameBufferTextureData(FrameBufferTextureFormat format)
                : TextureFormat(format) {}
            ~FrameBufferTextureData(){}
 
            FrameBufferTextureFormat TextureFormat = FrameBufferTextureFormat::None;
        };
 
        struct FrameBufferAttachmentData
        {
            FrameBufferAttachmentData() = default;
            FrameBufferAttachmentData(std::initializer_list<FrameBufferTextureData> attachments)
                : Attachments(attachments) {}
 
            std::vector<FrameBufferTextureData> Attachments;
        };
 
        struct FrameBufferData
        {
            FrameBufferAttachmentData Attachments;
            u32 Width, Height;
            u32 Samples = 1;
            bool SwapChainTarget = false;
        };
 
        enum class LightTechnique
        {
            Forward = 0,
            Deferred,
            DeferredPlus
        };
 
        bool SetPlatformInterface(API api);
 
        bool Initialize();
 
        void Shutdown();
 
        NODISCARD API GetCurrentAPI();
 
        NODISCARD Surface CreateSurface(SysWindow* window);
 
        void RemoveSurface(u32 id);
 
        NODISCARD ShaderFileData GetFileData(EngineShader id);
 
        NODISCARD const std::vector<Shader*>& GetAllShaders();
 
        NODISCARD u32 CompileShader(const ShaderFileData& data);
 
        u32 AddMesh(Assets::Mesh* mesh);
 
        void RemoveMesh(u32 id);
 
        u32 AddTexture(Assets::Texture* texture, ubyte* data);
 
        void RemoveTexture(u32 id);
 
        u32 AddMaterial(const Assets::PbrMaterial& material);
 
        void SetMaterialValue(u32 id, const Assets::PbrMaterial material);
 
        void RemoveMaterial(u32 id);
 
        NODISCARD const char* GetEngineShadersPath(API API);
 
 
        NODISCARD LightTechnique GetCurrentRenderType();
 
        void SetRenderType(LightTechnique technique);
 
        NODISCARD Camera& GetMainCamera();
 
        void SetSSAO(bool value);
        void SetBloom(bool value);
        void SetParallaxMapping(bool value);
        void SetShadows(bool value);
        void EnableCulling(bool value);
        void EnableDebugAABB(bool value);
    }
}