Gpgpuimgui

include/nbl/ext/ImGui/ImGui.h

@@ -22,7 +22,18 @@ class UI final : public core::IReferenceCounted
  EBC_COUNT,
  };
 
- nbl::core::smart_refctd_ptr<typename COMPOSE_T> streamingTDBufferST; // composed buffer layout is [EBC_DRAW_INDIRECT_STRUCTURES] [EBC_ELEMENT_STRUCTURES] [EBC_INDEX_BUFFERS] [EBC_VERTEX_BUFFERS]
+ nbl::core::smart_refctd_ptr<typename COMPOSE_T> streamingTDBufferST; //! composed buffer layout is [EBC_DRAW_INDIRECT_STRUCTURES] [EBC_ELEMENT_STRUCTURES] [EBC_INDEX_BUFFERS] [EBC_VERTEX_BUFFERS]
+ };
+
+ struct S_CREATION_PARAMETERS
+ {
+ video::IUtilities* const utilities; //! required
+ video::IQueue* const transfer; //! required
+ video::IGPURenderpass* const renderpass; //! required
+ uint32_t subpassIx = 0u; //! optional, default value if not provided
+ video::IGPUDescriptorSetLayout* const descriptorSetLayout = nullptr; //! optional, default layout used if not provided [STILL TODO, currently its assumed its not nullptr!]
+ video::IGPUPipelineCache* const pipelineCache = nullptr; //! optional, no cache used if not provided
+ typename MDI::COMPOSE_T* const streamingMDIBuffer = nullptr; //! optional, default MDI buffer allocated if not provided
  };
 
  //! parameters which may change every frame, used with the .update call to interact with ImGuiIO; we require a very *required* minimum - if you need to cover more IO options simply get the IO with ImGui::GetIO() to customize them (they all have default values you can change before calling the .update)
@@ -44,17 +55,17 @@ class UI final : public core::IReferenceCounted
  S_EVENTS events;
  };
 
- UI(core::smart_refctd_ptr<video::ILogicalDevice> _device, core::smart_refctd_ptr<video::IGPUDescriptorSetLayout> _descriptorSetLayout, video::IGPURenderpass* renderpass, uint32_t subpassIx, video::IGPUPipelineCache* pipelineCache = nullptr, nbl::core::smart_refctd_ptr<typename MDI::COMPOSE_T> _streamingMDIBuffer = nullptr);
+ UI(S_CREATION_PARAMETERS&& params);
  ~UI() override;
 
  //! Nabla ImGUI backend reserves this index for font atlas, any attempt to hook user defined texture within the index will cause runtime error [TODO: could have a setter & getter to control the default & currently hooked font texture ID and init 0u by default]
  _NBL_STATIC_INLINE_CONSTEXPR auto NBL_FONT_ATLAS_TEX_ID = 0u;
 
  //! update ImGuiIO & record ImGUI *cpu* draw command lists, call it before .render
- bool update(const S_UPDATE_PARAMETERS params);
+ bool update(const S_UPDATE_PARAMETERS& params);
 
  //! updates mapped mdi buffer & records *gpu* draw commands, handles overflows for mdi allocation failure cases (pop & submit)
- bool render(nbl::video::SIntendedSubmitInfo& info, const nbl::video::IGPUDescriptorSet* const descriptorSet);
+ bool render(nbl::video::SIntendedSubmitInfo& info, const nbl::video::IGPUDescriptorSet* const descriptorSet, const std::span<const VkRect2D> scissors = {});
 
  //! registers lambda listener in which ImGUI calls should be recorded
  size_t registerListener(std::function<void()> const& listener);
@@ -72,17 +83,13 @@ class UI final : public core::IReferenceCounted
  //! ImGUI context getter, you are supposed to cast it, eg. reinterpret_cast<ImGuiContext*>(this->getContext());
  void* getContext();
  private:
- void createSystem();
- void createPipeline(core::smart_refctd_ptr<video::IGPUDescriptorSetLayout> descriptorSetLayout, video::IGPURenderpass* renderpass, uint32_t subpassIx, video::IGPUPipelineCache* pipelineCache);
- void createMDIBuffer(nbl::core::smart_refctd_ptr<typename MDI::COMPOSE_T> _streamingMDIBuffer);
- video::ISemaphore::future_t<video::IQueue::RESULT> createFontAtlasTexture(video::IGPUCommandBuffer* cmdBuffer, video::IQueue* queue);
- void handleMouseEvents(const core::SRange<const nbl::ui::SMouseEvent>& events, nbl::hlsl::float32_t2 mousePosition) const;
- void handleKeyEvents(const core::SRange<const nbl::ui::SKeyboardEvent>& events) const;
-
- core::smart_refctd_ptr<system::ISystem> system;
- core::smart_refctd_ptr<system::ILogger> logger;
- core::smart_refctd_ptr<video::IUtilities> utilities;
- core::smart_refctd_ptr<video::ILogicalDevice> m_device;
+ void createPipeline();
+ void createMDIBuffer();
+ void handleMouseEvents(const S_UPDATE_PARAMETERS& params) const;
+ void handleKeyEvents(const S_UPDATE_PARAMETERS& params) const;
+ video::ISemaphore::future_t<video::IQueue::RESULT> createFontAtlasTexture(video::IGPUCommandBuffer* cmdBuffer);
+
+ S_CREATION_PARAMETERS m_creationParams;
 
  core::smart_refctd_ptr<video::IGPUGraphicsPipeline> pipeline;
  core::smart_refctd_ptr<video::IGPUImageView> m_fontAtlasTexture;

include/nbl/video/utilities/IUtilities.h

@@ -144,6 +144,9 @@ class NBL_API2 IUtilities : public core::IReferenceCounted
  //!
  inline ILogicalDevice* getLogicalDevice() const { return m_device.get(); }
 
+ //! 
+ inline system::ILogger* getLogger() const { return m_logger.getRaw(); }
+
  //!
  inline StreamingTransientDataBufferMT<>* getDefaultUpStreamingBuffer()
  {