src/platform/opengl/opengl_framebuffer.h


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#pragma once

#include "rendering/framebuffer.h"

namespace Donut
{
    class OpenGLFramebuffer : public Framebuffer
    {
    public:
        OpenGLFramebuffer(const FramebufferSpecification& spec);
        virtual ~OpenGLFramebuffer();

        void invalidate();

        virtual void bind()   override;
        virtual void unbind() override;

        virtual void resize(uint32_t width, uint32_t height)          override;
        virtual int read_pixel(uint32_t attachment_index, int x, int y) override;

        virtual void clear_attachment(uint32_t attachment_index, int value) override;
        virtual uint32_t get_color_attachment_renderer_id(uint32_t index = 0) const override { return m_color_attachments[index]; }

        virtual const FramebufferSpecification& get_specification() const override { return m_specification; }
    private:
        uint32_t m_renderer_id = 0;
        FramebufferSpecification m_specification;

        std::vector<FramebufferTextureSpecification> m_color_attachment_specifications;
        FramebufferTextureSpecification m_depth_attachment_specification = FramebufferTextureFormat::None;

        std::vector<uint32_t> m_color_attachments;
        uint32_t m_depth_attachment = 0;
    };
};