mgl_d3d11_line_renderer.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_D3D11_LINE_RENDERER_H_1617429438
#define INCGUARD_MGL_D3D11_LINE_RENDERER_H_1617429438
 
#include <mgl/mgl_environment.h>
#if defined(MGL_RENDERER_ENABLE_D3D11)
 
#include <array>
#include <atlbase.h>
#include <d3d11_1.h>
#include <mgl/render/d3d11/mgl_d3d11_object_renderer.h>
#include <vector>
#include <mgl/math/mgl_vector2.h>
#include <mgl/common/mgl_color.h>
 
namespace MGL::Render::D3D11
{
class LineRenderer : public ObjectRenderer
{
public:
    struct Attribute
    {
        float position[2];  
        float color[4];     
    };
    static constexpr size_t kAttributeMax = 1024;   
 
    LineRenderer() noexcept;
 
    virtual bool Initialize() noexcept override;
    virtual void Flush(const FlushParameter &flushParameter) noexcept override;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr bool IsFull() const noexcept
    {
        return _attributeCount >= (kAttributeMax - 1);
    }
 
    void Add(const Vector2 &start, const Vector2 &end, const Color &color, const FlushParameter &flushParameter) noexcept;
    
private:
    bool InitializeShader() noexcept;
    bool InitializeVertexBuffer() noexcept;
 
    bool _isAvailable;
    
    std::array<Attribute, kAttributeMax> _attributes;
    size_t _attributeCount;
 
    CComPtr<ID3D11VertexShader> _vertexShader;
    CComPtr<ID3D11PixelShader> _pixelShader;
    CComPtr<ID3D11InputLayout> _inputLayout;
    CComPtr<ID3D11Buffer> _vertexBuffer;
};
}   // MGL::Render::D3D11
 
#endif  // MGL_RENDERER_ENABLE_D3D11
#endif  // INCGUARD_MGL_D3D11_LINE_RENDERER_H_1617429438
 
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