moving pipeline init and render to Imgui module class
This commit is contained in:
SweetId
parent
939bc08878
commit
32d98f5a04
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@ -28,10 +28,11 @@ namespace Nz
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struct Config;
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Imgui(Config config);
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~Imgui() = default;
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~Imgui();
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void Init(Nz::Window& window);
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bool Init(Nz::Window& window);
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void Update(Nz::Window& window, float dt);
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void Render(Nz::RenderWindow& window, Nz::RenderFrame& frame);
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// Clipboard functions
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static void SetClipboardText(void* userData, const char* text);
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@ -50,11 +51,28 @@ namespace Nz
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std::shared_ptr<Nz::Cursor> GetMouseCursor(ImGuiMouseCursor cursorType);
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void UpdateMouseCursor(Nz::Window& window);
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bool LoadTexturedPipeline();
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bool LoadUntexturedPipeline();
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void RenderDrawLists(Nz::RenderWindow& window, Nz::RenderFrame& frame, ImDrawData* drawData);
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std::string m_clipboardText;
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bool m_bWindowHasFocus;
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bool m_bMouseMoved;
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struct
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{
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std::shared_ptr<Nz::RenderPipeline> Pipeline;
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Nz::ShaderBindingPtr TextureShaderBinding;
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std::shared_ptr<Nz::TextureSampler> TextureSampler;
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} m_texturedPipeline;
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struct
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{
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std::shared_ptr<Nz::RenderPipeline> Pipeline;
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} m_untexturedPipeline;
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static Imgui* s_instance;
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};
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}
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@ -67,10 +85,6 @@ namespace ImGui
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NAZARA_IMGUI_API void Init(Nz::RenderWindow& window, Nz::RenderTarget& target, bool loadDefaultFont = true);
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NAZARA_IMGUI_API void Init(Nz::RenderWindow& window, const Nz::Vector2ui& displaySize, bool loadDefaultFont = true);
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NAZARA_IMGUI_API void Update(const Nz::Vector2i& mousePos, const Nz::Vector2ui& displaySize, float dt);
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NAZARA_IMGUI_API void Render(Nz::RenderWindow& window, Nz::RenderFrame& frame);
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NAZARA_IMGUI_API void Shutdown();
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}
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@ -47,7 +47,7 @@ const char shaderSource_Untextured[] =
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namespace
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{
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Nz::SystemCursor ToNz(ImGuiMouseCursor type)
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inline Nz::SystemCursor ToNz(ImGuiMouseCursor type)
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{
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switch (type)
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{
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@ -67,6 +67,22 @@ namespace
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}
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}
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inline Nz::Vector2f ToNzVec2(ImVec2 v)
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{
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return { v.x, v.y };
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}
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inline Nz::Vector3f ToNzVec3(ImVec2 v)
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{
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return { v.x, v.y, 0.f };
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}
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inline Nz::Color ToNzColor(ImU32 color)
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{
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auto c = ImGui::ColorConvertU32ToFloat4(color);
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return { c.x, c.y, c.z, c.w };
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}
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}
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@ -77,14 +93,46 @@ namespace Nz
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Imgui::Imgui(Config config)
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: ModuleBase("Imgui", this)
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{
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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io.UserData = this;
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}
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void Imgui::Init(Nz::Window& window)
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Imgui::~Imgui()
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{
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m_untexturedPipeline.Pipeline.reset();
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m_texturedPipeline.TextureSampler.reset();
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m_texturedPipeline.TextureShaderBinding.reset();
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m_texturedPipeline.Pipeline.reset();
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ImGui::GetIO().Fonts->TexID = nullptr;
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ImGui::DestroyContext();
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}
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bool Imgui::Init(Nz::Window& window)
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{
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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// tell ImGui which features we support
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io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
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io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;
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io.BackendPlatformName = "imgui_nazara";
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// init rendering
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io.DisplaySize = ImVec2(window.GetSize().x * 1.f, window.GetSize().y * 1.f);
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if (!LoadTexturedPipeline())
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return false;
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if (!LoadUntexturedPipeline())
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return false;
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SetupInputs(window.GetEventHandler());
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m_bWindowHasFocus = window.HasFocus();
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return true;
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}
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void Imgui::Update(Nz::Window& window, float dt)
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@ -245,6 +293,12 @@ namespace Nz
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ImGui::NewFrame();
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}
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void Imgui::Render(Nz::RenderWindow& window, Nz::RenderFrame& frame)
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{
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ImGui::Render();
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RenderDrawLists(window, frame, ImGui::GetDrawData());
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}
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void Imgui::SetClipboardText(void* userData, const char* text)
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{
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Imgui* backend = static_cast<Imgui*>(userData);
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@ -288,43 +342,8 @@ namespace Nz
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}
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}
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}
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}
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namespace
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{
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// various helper functions
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ImColor toImColor(Nz::Color c);
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ImVec2 getTopLeftAbsolute(const Nz::Rectf& rect);
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ImVec2 getDownRightAbsolute(const Nz::Rectf& rect);
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void RenderDrawLists(Nz::RenderWindow& window, Nz::RenderFrame& frame, ImDrawData* draw_data); // rendering callback function prototype
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// Implementation of ImageButton overload
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bool imageButtonImpl(const Nz::Texture& texture, const Nz::Rectf& textureRect, const Nz::Vector2f& size, const int framePadding, const Nz::Color& bgColor, const Nz::Color& tintColor);
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}
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namespace Private
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{
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static std::shared_ptr<Nz::Texture> FontTexture;
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static struct
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{
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std::shared_ptr<Nz::RenderPipeline> Pipeline;
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Nz::ShaderBindingPtr TextureShaderBinding;
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std::shared_ptr<Nz::TextureSampler> TextureSampler;
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} TexturedPipeline;
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static struct
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{
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std::shared_ptr<Nz::RenderPipeline> Pipeline;
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} UntexturedPipeline;
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}
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namespace ImGui {
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namespace NZ {
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void UpdateFontTexture();
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bool LoadTexturedPipeline()
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bool Imgui::LoadTexturedPipeline()
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{
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auto renderDevice = Nz::Graphics::Instance()->GetRenderDevice();
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@ -346,7 +365,7 @@ namespace NZ {
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}
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Private::TexturedPipeline.TextureSampler = renderDevice->InstantiateTextureSampler({});
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m_texturedPipeline.TextureSampler = renderDevice->InstantiateTextureSampler({});
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Nz::RenderPipelineLayoutInfo pipelineLayoutInfo;
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@ -357,7 +376,7 @@ namespace NZ {
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textureBinding.type = Nz::ShaderBindingType::Texture;
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std::shared_ptr<Nz::RenderPipelineLayout> renderPipelineLayout = renderDevice->InstantiateRenderPipelineLayout(std::move(pipelineLayoutInfo));
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Private::TexturedPipeline.TextureShaderBinding = renderPipelineLayout->AllocateShaderBinding(1);
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m_texturedPipeline.TextureShaderBinding = renderPipelineLayout->AllocateShaderBinding(1);
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Nz::RenderPipelineInfo pipelineInfo;
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pipelineInfo.pipelineLayout = renderPipelineLayout;
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@ -381,11 +400,11 @@ namespace NZ {
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pipelineVertexBuffer.binding = 0;
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pipelineVertexBuffer.declaration = Nz::VertexDeclaration::Get(Nz::VertexLayout::XYZ_Color_UV);
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Private::TexturedPipeline.Pipeline = renderDevice->InstantiateRenderPipeline(pipelineInfo);
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m_texturedPipeline.Pipeline = renderDevice->InstantiateRenderPipeline(pipelineInfo);
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return true;
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}
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bool LoadUntexturedPipeline()
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bool Imgui::LoadUntexturedPipeline()
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{
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auto renderDevice = Nz::Graphics::Instance()->GetRenderDevice();
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@ -431,20 +450,131 @@ namespace NZ {
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pipelineVertexBuffer.binding = 0;
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pipelineVertexBuffer.declaration = Nz::VertexDeclaration::Get(Nz::VertexLayout::XYZ_Color_UV);
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Private::UntexturedPipeline.Pipeline = renderDevice->InstantiateRenderPipeline(pipelineInfo);
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m_untexturedPipeline.Pipeline = renderDevice->InstantiateRenderPipeline(pipelineInfo);
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return true;
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}
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bool LoadBackend(Nz::RenderWindow& window)
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// Rendering callback
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void Imgui::RenderDrawLists(Nz::RenderWindow& window, Nz::RenderFrame& frame, ImDrawData* drawData)
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{
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if (!LoadTexturedPipeline())
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return false;
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if (drawData->CmdListsCount == 0)
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return;
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if (!LoadUntexturedPipeline())
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return false;
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ImGuiIO& io = ImGui::GetIO();
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assert(io.Fonts->TexID != (ImTextureID)NULL); // You forgot to create and set font texture
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return true;
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// scale stuff (needed for proper handling of window resize)
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int fb_width = static_cast<int>(io.DisplaySize.x * io.DisplayFramebufferScale.x);
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int fb_height = static_cast<int>(io.DisplaySize.y * io.DisplayFramebufferScale.y);
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if (fb_width == 0 || fb_height == 0)
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return;
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drawData->ScaleClipRects(io.DisplayFramebufferScale);
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auto renderDevice = Nz::Graphics::Instance()->GetRenderDevice();
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for (int n = 0; n < drawData->CmdListsCount; ++n) {
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const ImDrawList* cmd_list = drawData->CmdLists[n];
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const unsigned char* vtx_buffer =
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(const unsigned char*)&cmd_list->VtxBuffer.front();
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const ImDrawIdx* idx_buffer = &cmd_list->IdxBuffer.front();
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std::vector<Nz::VertexStruct_XYZ_Color_UV> vertices;
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vertices.reserve(cmd_list->VtxBuffer.size());
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for (auto& vertex : cmd_list->VtxBuffer)
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vertices.push_back({ ToNzVec3(vertex.pos), ToNzColor(vertex.col), ToNzVec2(vertex.uv) });
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size_t size = vertices.size() * sizeof(Nz::VertexStruct_XYZ_Color_UV);
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auto vertexBuffer = renderDevice->InstantiateBuffer(Nz::BufferType::Vertex, size, Nz::BufferUsage::DeviceLocal | Nz::BufferUsage::Dynamic, vertices.data());
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auto indexBuffer = renderDevice->InstantiateBuffer(Nz::BufferType::Index, cmd_list->IdxBuffer.size() * sizeof(ImWchar), Nz::BufferUsage::DeviceLocal | Nz::BufferUsage::Dynamic, idx_buffer);
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auto* windowRT = window.GetRenderTarget();
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std::vector<ImDrawCmd> cmdBuffer;
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cmdBuffer.reserve(cmd_list->CmdBuffer.size());
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for (auto& cmd : cmd_list->CmdBuffer)
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cmdBuffer.push_back(cmd);
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frame.Execute([this, windowRT, &frame, fb_width, fb_height, cmdBuffer, vertexBuffer, indexBuffer](Nz::CommandBufferBuilder& builder) {
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builder.BeginDebugRegion("ImGui", Nz::Color::Green);
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{
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Nz::Recti renderRect(0, 0, fb_width, fb_height);
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Nz::CommandBufferBuilder::ClearValues clearValues[2];
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clearValues[0].color = Nz::Color::Black;
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clearValues[1].depth = 1.f;
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clearValues[1].stencil = 0;
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builder.BeginRenderPass(windowRT->GetFramebuffer(frame.GetFramebufferIndex()), windowRT->GetRenderPass(), renderRect, { clearValues[0], clearValues[1] });
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{
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Nz::UInt64 indexOffset = 0;
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for (auto& cmd : cmdBuffer)
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{
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if (!cmd.UserCallback)
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{
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auto rect = cmd.ClipRect;
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auto count = cmd.ElemCount;
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auto texture = static_cast<Nz::Texture*>(cmd.GetTexID());
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if (nullptr != texture)
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{
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m_texturedPipeline.TextureShaderBinding->Update({
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{
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0,
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Nz::ShaderBinding::TextureBinding {
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texture, m_texturedPipeline.TextureSampler.get()
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}
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}
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});
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builder.BindPipeline(*m_texturedPipeline.Pipeline);
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builder.BindShaderBinding(1, *m_texturedPipeline.TextureShaderBinding);
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}
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else
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{
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builder.BindPipeline(*m_untexturedPipeline.Pipeline);
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}
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builder.SetViewport(Nz::Recti{ 0, 0, fb_width, fb_height });
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builder.SetScissor(Nz::Recti{ int(rect.x), int(rect.y), int(rect.z - rect.x), int(rect.w - rect.y) });// Nz::Recti{ int(rect.x), int(fb_height - rect.w), int(rect.z - rect.x), int(rect.w - rect.y) });
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builder.BindIndexBuffer(*indexBuffer, Nz::IndexType::U16, indexOffset * sizeof(ImWchar));
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builder.BindVertexBuffer(0, *vertexBuffer);
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builder.DrawIndexed(count);
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}
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indexOffset += cmd.ElemCount;
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}
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}
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builder.EndRenderPass();
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}
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builder.EndDebugRegion();
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}, Nz::QueueType::Graphics);
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}
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}
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}
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namespace
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{
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// various helper functions
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ImColor toImColor(Nz::Color c);
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ImVec2 getTopLeftAbsolute(const Nz::Rectf& rect);
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ImVec2 getDownRightAbsolute(const Nz::Rectf& rect);
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void RenderDrawLists(Nz::RenderWindow& window, Nz::RenderFrame& frame, ImDrawData* drawData); // rendering callback function prototype
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// Implementation of ImageButton overload
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bool imageButtonImpl(const Nz::Texture& texture, const Nz::Rectf& textureRect, const Nz::Vector2f& size, const int framePadding, const Nz::Color& bgColor, const Nz::Color& tintColor);
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}
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namespace Private
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{
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static std::shared_ptr<Nz::Texture> FontTexture;
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}
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namespace ImGui {
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namespace NZ {
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void UpdateFontTexture();
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void Init(Nz::RenderWindow& window, bool loadDefaultFont) {
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Init(window, window.GetSize(), loadDefaultFont);
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@ -456,23 +586,6 @@ namespace NZ {
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void Init(Nz::RenderWindow& window, const Nz::Vector2ui& displaySize, bool loadDefaultFont) {
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if (!LoadBackend(window))
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return;
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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io.UserData = Nz::Imgui::Instance();
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// tell ImGui which features we support
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io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
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io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;
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io.BackendPlatformName = "imgui_nazara";
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// init rendering
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io.DisplaySize = ImVec2(displaySize.x * 1.f, displaySize.y * 1.f);
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Private::FontTexture.reset();
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if (loadDefaultFont) {
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@ -482,21 +595,8 @@ void Init(Nz::RenderWindow& window, const Nz::Vector2ui& displaySize, bool loadD
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}
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}
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void Render(Nz::RenderWindow& window, Nz::RenderFrame& frame) {
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ImGui::Render();
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RenderDrawLists(window, frame, ImGui::GetDrawData());
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}
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void Shutdown() {
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ImGui::GetIO().Fonts->TexID = 0;
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ImGui::DestroyContext();
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Private::TexturedPipeline.TextureSampler.reset();
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Private::TexturedPipeline.TextureShaderBinding.reset();
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Private::TexturedPipeline.Pipeline.reset();
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Private::UntexturedPipeline.Pipeline.reset();
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Private::FontTexture.reset();
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}
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@ -602,124 +702,6 @@ ImVec2 getDownRightAbsolute(const Nz::Rectf& rect) {
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return ImVec2(rect.GetCorner(Nz::RectCorner::RightBottom) + Nz::Vector2f(pos.x, pos.y));
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}
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inline Nz::Vector2f ToNzVec2(ImVec2 v)
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{
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return { v.x, v.y };
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}
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inline Nz::Vector3f ToNzVec3(ImVec2 v)
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{
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return { v.x, v.y, 0.f };
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}
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inline Nz::Color ToNzColor(ImU32 color)
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{
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auto c = ImGui::ColorConvertU32ToFloat4(color);
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return { c.x, c.y, c.z, c.w };
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}
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// Rendering callback
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void RenderDrawLists(Nz::RenderWindow& window, Nz::RenderFrame& frame, ImDrawData* draw_data) {
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ImGui::GetDrawData();
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if (draw_data->CmdListsCount == 0) {
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return;
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}
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ImGuiIO& io = ImGui::GetIO();
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assert(io.Fonts->TexID !=
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(ImTextureID)NULL); // You forgot to create and set font texture
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// scale stuff (needed for proper handling of window resize)
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int fb_width =
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static_cast<int>(io.DisplaySize.x * io.DisplayFramebufferScale.x);
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int fb_height =
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static_cast<int>(io.DisplaySize.y * io.DisplayFramebufferScale.y);
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if (fb_width == 0 || fb_height == 0) {
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return;
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}
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draw_data->ScaleClipRects(io.DisplayFramebufferScale);
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auto renderDevice = Nz::Graphics::Instance()->GetRenderDevice();
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for (int n = 0; n < draw_data->CmdListsCount; ++n) {
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const ImDrawList* cmd_list = draw_data->CmdLists[n];
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const unsigned char* vtx_buffer =
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(const unsigned char*)&cmd_list->VtxBuffer.front();
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const ImDrawIdx* idx_buffer = &cmd_list->IdxBuffer.front();
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std::vector<Nz::VertexStruct_XYZ_Color_UV> vertices;
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vertices.reserve(cmd_list->VtxBuffer.size());
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for (auto& vertex : cmd_list->VtxBuffer)
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vertices.push_back({ ToNzVec3(vertex.pos), ToNzColor(vertex.col), ToNzVec2(vertex.uv)});
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size_t size = vertices.size() * sizeof(Nz::VertexStruct_XYZ_Color_UV);
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auto vertexBuffer = renderDevice->InstantiateBuffer(Nz::BufferType::Vertex, size, Nz::BufferUsage::DeviceLocal | Nz::BufferUsage::Dynamic, vertices.data());
|
||||
auto indexBuffer = renderDevice->InstantiateBuffer(Nz::BufferType::Index, cmd_list->IdxBuffer.size() * sizeof(ImWchar), Nz::BufferUsage::DeviceLocal | Nz::BufferUsage::Dynamic, idx_buffer);
|
||||
|
||||
auto* windowRT = window.GetRenderTarget();
|
||||
|
||||
std::vector<ImDrawCmd> cmdBuffer;
|
||||
cmdBuffer.reserve(cmd_list->CmdBuffer.size());
|
||||
for (auto& cmd : cmd_list->CmdBuffer)
|
||||
cmdBuffer.push_back(cmd);
|
||||
|
||||
frame.Execute([windowRT, &frame, fb_width, fb_height, cmdBuffer, vertexBuffer, indexBuffer](Nz::CommandBufferBuilder& builder) {
|
||||
builder.BeginDebugRegion("ImGui", Nz::Color::Green);
|
||||
{
|
||||
Nz::Recti renderRect(0, 0, fb_width, fb_height);
|
||||
|
||||
Nz::CommandBufferBuilder::ClearValues clearValues[2];
|
||||
clearValues[0].color = Nz::Color::Black;
|
||||
clearValues[1].depth = 1.f;
|
||||
clearValues[1].stencil = 0;
|
||||
|
||||
builder.BeginRenderPass(windowRT->GetFramebuffer(frame.GetFramebufferIndex()), windowRT->GetRenderPass(), renderRect, { clearValues[0], clearValues[1] });
|
||||
{
|
||||
Nz::UInt64 indexOffset = 0;
|
||||
for (auto& cmd : cmdBuffer)
|
||||
{
|
||||
if (!cmd.UserCallback)
|
||||
{
|
||||
auto rect = cmd.ClipRect;
|
||||
auto count = cmd.ElemCount;
|
||||
auto texture = static_cast<Nz::Texture*>(cmd.GetTexID());
|
||||
|
||||
if (nullptr != texture)
|
||||
{
|
||||
Private::TexturedPipeline.TextureShaderBinding->Update({
|
||||
{
|
||||
0,
|
||||
Nz::ShaderBinding::TextureBinding {
|
||||
texture, Private::TexturedPipeline.TextureSampler.get()
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
builder.BindPipeline(*Private::TexturedPipeline.Pipeline);
|
||||
builder.BindShaderBinding(1, *Private::TexturedPipeline.TextureShaderBinding);
|
||||
}
|
||||
else
|
||||
{
|
||||
builder.BindPipeline(*Private::UntexturedPipeline.Pipeline);
|
||||
}
|
||||
|
||||
builder.SetViewport(Nz::Recti{ 0, 0, fb_width, fb_height });
|
||||
builder.SetScissor(Nz::Recti{ int(rect.x), int(rect.y), int(rect.z - rect.x), int(rect.w - rect.y) });// Nz::Recti{ int(rect.x), int(fb_height - rect.w), int(rect.z - rect.x), int(rect.w - rect.y) });
|
||||
|
||||
builder.BindIndexBuffer(*indexBuffer, Nz::IndexType::U16, indexOffset * sizeof(ImWchar));
|
||||
builder.BindVertexBuffer(0, *vertexBuffer);
|
||||
|
||||
builder.DrawIndexed(count);
|
||||
}
|
||||
indexOffset += cmd.ElemCount;
|
||||
}
|
||||
}
|
||||
builder.EndRenderPass();
|
||||
}
|
||||
builder.EndDebugRegion();
|
||||
}, Nz::QueueType::Graphics);
|
||||
}
|
||||
}
|
||||
|
||||
/*bool imageButtonImpl(const Nz::Texture& texture,
|
||||
const Nz::Rectf& textureRect, const Nz::Vector2f& size,
|
||||
const int framePadding, const Nz::Color& bgColor,
|
||||
|
|
|
|||
Loading…
Reference in New Issue