imgui_layer_runtime_backend_internal.h

#pragma once
 
#include <imgui.h>
 
#include <memory>
#include <string_view>
 
namespace pixelbullet
{
class Graphics;
class RenderDevice;
class RenderFrameContext;
 
namespace application_internal
{
class ImGuiLayerRuntimeBackend
{
public:
    virtual ~ImGuiLayerRuntimeBackend() = default;
 
    [[nodiscard]] virtual bool IsInitialized() const noexcept = 0;
    [[nodiscard]] virtual bool EnsureInitialized(pixelbullet::RenderDevice& render_device, pixelbullet::Graphics& graphics) = 0;
 
    virtual void BeginFrame() = 0;
    virtual void RenderDrawData(const pixelbullet::RenderFrameContext& frame_context, ImDrawData& draw_data) = 0;
    virtual void RebuildFontTexture(pixelbullet::RenderDevice& render_device, pixelbullet::Graphics& graphics) = 0;
    virtual void Shutdown(pixelbullet::RenderDevice& render_device, pixelbullet::Graphics& graphics) = 0;
 
    [[nodiscard]] virtual ImTextureID GetTexture(pixelbullet::RenderDevice& render_device, pixelbullet::Graphics& graphics,
                                                 const std::shared_ptr<void>& image) = 0;
    [[nodiscard]] virtual ImTextureID GetRenderTargetTexture(pixelbullet::RenderDevice& render_device, pixelbullet::Graphics& graphics,
                                                             std::string_view name) = 0;
};
 
[[nodiscard]] std::unique_ptr<ImGuiLayerRuntimeBackend> CreateImGuiLayerRuntimeBackend();
} // namespace application_internal
} // namespace pixelbullet