REFAC: Remove vulkan references, glm and imgui

CMake/External/CMakeLists.txt

@@ -95,14 +95,12 @@ ExternalProject_Add( ${PROJECT_NAME}
     -D${PROJECT_NAME}_BUILD_EXAMPLES:BOOL=${${PROJECT_NAME}_BUILD_EXAMPLES}
     -D${PROJECT_NAME}_BUILD_TESTING:BOOL=${${PROJECT_NAME}_BUILD_TESTING}
     -D${PROJECT_NAME}_USE_OpenHaptics:BOOL=${${PROJECT_NAME}_USE_OpenHaptics}
-    -D${PROJECT_NAME}_USE_MODEL_REDUCTION:BOOL=${${PROJECT_NAME}_USE_MODEL_REDUCTION}
-    -D${PROJECT_NAME}_USE_Vulkan:BOOL=${${PROJECT_NAME}_USE_Vulkan}
+    -D${PROJECT_NAME}_USE_MODEL_REDUCTION:BOOL=${${PROJECT_NAME}_USE_MODEL_REDUCTION}    
     -D${PROJECT_NAME}_ENABLE_AUDIO:BOOL=${${PROJECT_NAME}_ENABLE_AUDIO}
     -D${PROJECT_NAME}_USE_VRPN:BOOL=${${PROJECT_NAME}_USE_VRPN}
     -D${PROJECT_NAME}_COLOR_OUTPUT:BOOL=${${PROJECT_NAME}_COLOR_OUTPUT}
     # External Libraries
-    -DEigen3_DIR:PATH=${Eigen3_DIR}
-    -Dglm_DIR:PATH=${glm_DIR}
+    -DEigen3_DIR:PATH=${Eigen3_DIR}    
     -DGTest_DIR:PATH=${GTest_DIR}
     -DVegaFEM_DIR:PATH=${VegaFEM_DIR}
     -DVTK_DIR:PATH=${VTK_DIR}

CMake/External/External_glm.cmake

-#-----------------------------------------------------------------------------
-# Add External Project
-#-----------------------------------------------------------------------------
-include(imstkAddExternalProject)
-imstk_add_external_project( glm
-  URL https://gitlab.kitware.com/iMSTK/glm/-/archive/0.9.8.3/glm-0.9.8.3.zip
-  URL_MD5 a95fae241b7ff3ba7d6e614cfd87df02
-  RELATIVE_INCLUDE_PATH ""
-  DEPENDENCIES ""
-  #VERBOSE
-)

CMake/External/External_imgui.cmake

-#-----------------------------------------------------------------------------
-# Add External Project
-#-----------------------------------------------------------------------------
-include(imstkAddExternalProject)
-imstk_define_external_dirs( imgui )
-# Gather up headers for install
-set(imgui_H_FILES ${imgui_SOURCE_DIR}/imconfig.h
-                  ${imgui_SOURCE_DIR}/imgui.h
-                  ${imgui_SOURCE_DIR}/imstb_rectpack.h
-                  ${imgui_SOURCE_DIR}/imstb_textedit.h
-                  ${imgui_SOURCE_DIR}/imstb_truetype.h
-   )
-set(make_imgui_dir_command
-  ${CMAKE_COMMAND} -E make_directory
-  ${CMAKE_INSTALL_PREFIX}/include/imgui/
-  )
-set(copy_imgui_headers_command
-  ${CMAKE_COMMAND} -E copy
-  ${imgui_H_FILES}
-  ${CMAKE_INSTALL_PREFIX}/include/imgui/
-  )
-
-imstk_add_external_project( imgui
-  URL https://gitlab.kitware.com/iMSTK/imgui/-/archive/v1.65/imgui-v1.65.zip
-  URL_MD5 e255a471fa1cc4f2be931659c253956a
-  CONFIGURE_COMMAND ${SKIP_STEP_COMMAND}
-  BUILD_COMMAND ${SKIP_STEP_COMMAND}
-  INSTALL_COMMAND
-    COMMAND ${make_imgui_dir_command}
-    COMMAND ${copy_imgui_headers_command}
-  RELATIVE_INCLUDE_PATH ""
-  DEPENDENCIES ""
-  #VERBOSE
-)

CMake/Findimgui.cmake

-include(imstkFind)
-#-----------------------------------------------------------------------------
-# Find All Headers for imgui
-#-----------------------------------------------------------------------------
-imstk_find_header(imgui imgui.h imgui)
-imstk_find_header_package(imgui)
-#message(STATUS "imgui includes : ${IMGUI_INCLUDE_DIRS}")
-
-if(FIND_IMGUI_SOURCE)
-  #-----------------------------------------------------------------------------
-  # Find Source
-  # Since imgui has no CMake, code is pulled into an iMSTK component directly
-  #-----------------------------------------------------------------------------
-  find_path(IMGUI_SOURCE_DIR
-    NAMES
-      imgui.cpp
-    PATHS
-      ${CMAKE_BINARY_DIR}/../External/imgui/src
-    NO_DEFAULT_PATH
-    )
-  mark_as_advanced(IMGUI_SOURCE_DIR)
-  #message(STATUS "imgui source : ${IMGUI_SOURCE_DIR}")
-
-  #-----------------------------------------------------------------------------
-  # Find package
-  #-----------------------------------------------------------------------------
-  include(FindPackageHandleStandardArgs)
-  find_package_handle_standard_args(imgui
-    REQUIRED_VARS
-      IMGUI_SOURCE_DIR)
-endif()

CMake/iMSTKConfig.cmake.in

@@ -10,7 +10,6 @@ include(CMakeFindDependencyMacro)
 # iMSTK settings
 set(iMSTK_ROOT ${PACKAGE_PREFIX_DIR})
 set(iMSTK_DATA_DIR ${PACKAGE_PREFIX_DIR}/data)
-set(iMSTK_USE_Vulkan @iMSTK_USE_Vulkan@)
 set(iMSTK_USE_OpenHaptics @iMSTK_USE_OpenHaptics@)
 set(iMSTK_BUILD_TESTING @iMSTK_BUILD_TESTING@)
 
@@ -35,19 +34,12 @@ endif()
 # g3log
 find_package( g3log REQUIRED )
 
-# glm
-set(glm_DIR "@glm_DIR@")
-find_dependency( glm REQUIRED )
-
 # GTest
 if(iMSTK_BUILD_TESTING)
   set(GTest_DIR "@GTest_DIR@")
   find_dependency( GTest REQUIRED NO_DEFAULT_PATH )
 endif()
 
-# imgui
-find_package( imgui REQUIRED )
-
 # LibNiFalcon
 find_package( LibNiFalcon REQUIRED)
 

CMakeLists.txt

@@ -139,8 +139,6 @@ if(${PROJECT_NAME}_SUPERBUILD)
   imstk_define_dependency(Assimp)
   imstk_define_dependency(Eigen3)
   imstk_define_dependency(g3log)
-  imstk_define_dependency(glm)
-  imstk_define_dependency(imgui)
   imstk_define_dependency(LibNiFalcon)
   imstk_define_dependency(openvr)
   imstk_define_dependency(PhysX)
@@ -216,14 +214,6 @@ if(WIN32)
 endif()
 # g3log
 find_package( g3log REQUIRED )
-# glm
-find_package( glm REQUIRED)
-# imgui
-# iMSTK actually includes and compiles imgui code
-# As imgui does not have any cmake support
-# So tell our find_package to also find the imgui source directory
-set(FIND_IMGUI_SOURCE ON)
-find_package( imgui REQUIRED )
 # LibNiFalcon
 find_package( LibNiFalcon REQUIRED)
 # Libusb
@@ -349,7 +339,6 @@ add_subdirectory(Source/DataStructures)
 add_subdirectory(Source/Constraint)
 add_subdirectory(Source/Devices)
 add_subdirectory(Source/Rendering/Materials)
-add_subdirectory(Source/Rendering/GUIOverlay)
 add_subdirectory(Source/Rendering)
 add_subdirectory(Source/Solvers)
 add_subdirectory(Source/DynamicalModels)

Source/Animation/Particles/imstkRenderParticleEmitter.h

@@ -147,8 +147,6 @@ public:
     virtual void update();
 
 protected:
-    friend class VulkanParticleRenderDelegate;
-
     ///
     /// \brief Initialize particles
     ///

Source/Geometry/Decal/imstkDecal.h

@@ -54,7 +54,6 @@ public:
     void updateDecal(Mat4d& viewMatrix);
 
 protected:
-    friend class VulkanDecalRenderDelegate;
 
     // Hide these functions
     using AnalyticalGeometry::getFunctionValue;

Source/Geometry/Decal/imstkDecalPool.cpp

@@ -38,27 +38,27 @@ DecalPool::DecalPool(unsigned int maxNumDecals /*= 128*/, const std::string& nam
         LOG(WARNING) << "The maximum number of decals is 128";
     }
 
-    m_vertexPositions[0] = glm::vec3(0.5, 0.5, 0.5);
-    m_vertexPositions[1] = glm::vec3(0.5, 0.5, -0.5);
-    m_vertexPositions[2] = glm::vec3(0.5, -0.5, 0.5);
-    m_vertexPositions[3] = glm::vec3(0.5, -0.5, -0.5);
-    m_vertexPositions[4] = glm::vec3(-0.5, 0.5, 0.5);
-    m_vertexPositions[5] = glm::vec3(-0.5, 0.5, -0.5);
-    m_vertexPositions[6] = glm::vec3(-0.5, -0.5, 0.5);
-    m_vertexPositions[7] = glm::vec3(-0.5, -0.5, -0.5);
-
-    m_triangles[0]  = glm::ivec3(2, 1, 0);
-    m_triangles[1]  = glm::ivec3(1, 2, 3);
-    m_triangles[2]  = glm::ivec3(4, 5, 6);
-    m_triangles[3]  = glm::ivec3(7, 6, 5);
-    m_triangles[4]  = glm::ivec3(0, 1, 4);
-    m_triangles[5]  = glm::ivec3(5, 4, 1);
-    m_triangles[6]  = glm::ivec3(6, 3, 2);
-    m_triangles[7]  = glm::ivec3(3, 6, 7);
-    m_triangles[8]  = glm::ivec3(4, 2, 0);
-    m_triangles[9]  = glm::ivec3(2, 4, 6);
-    m_triangles[10] = glm::ivec3(1, 3, 5);
-    m_triangles[11] = glm::ivec3(7, 5, 3);
+    m_vertexPositions[0] = Vec3d(0.5, 0.5, 0.5);
+    m_vertexPositions[1] = Vec3d(0.5, 0.5, -0.5);
+    m_vertexPositions[2] = Vec3d(0.5, -0.5, 0.5);
+    m_vertexPositions[3] = Vec3d(0.5, -0.5, -0.5);
+    m_vertexPositions[4] = Vec3d(-0.5, 0.5, 0.5);
+    m_vertexPositions[5] = Vec3d(-0.5, 0.5, -0.5);
+    m_vertexPositions[6] = Vec3d(-0.5, -0.5, 0.5);
+    m_vertexPositions[7] = Vec3d(-0.5, -0.5, -0.5);
+
+    m_triangles[0]  = Vec3i(2, 1, 0);
+    m_triangles[1]  = Vec3i(1, 2, 3);
+    m_triangles[2]  = Vec3i(4, 5, 6);
+    m_triangles[3]  = Vec3i(7, 6, 5);
+    m_triangles[4]  = Vec3i(0, 1, 4);
+    m_triangles[5]  = Vec3i(5, 4, 1);
+    m_triangles[6]  = Vec3i(6, 3, 2);
+    m_triangles[7]  = Vec3i(3, 6, 7);
+    m_triangles[8]  = Vec3i(4, 2, 0);
+    m_triangles[9]  = Vec3i(2, 4, 6);
+    m_triangles[10] = Vec3i(1, 3, 5);
+    m_triangles[11] = Vec3i(7, 5, 3);
 
     for (unsigned int i = 0; i < maxNumDecals; i++)
     {

Source/Geometry/Decal/imstkDecalPool.h

@@ -22,6 +22,7 @@
 #pragma once
 
 #include "imstkGeometry.h"
+#include "imstkMath.h"
 
 #include <array>
 #include <queue>
@@ -30,7 +31,7 @@
 #pragma warning( push )
 #pragma warning( disable : 4201 )
 #endif
-#include "glm/glm.hpp"
+
 #ifdef WIN32
 #pragma warning( pop )
 #endif
@@ -90,7 +91,6 @@ public:
     unsigned int getMaxNumDecals();
 
 protected:
-    friend class VulkanDecalRenderDelegate;
 
     std::deque<std::shared_ptr<Decal>> m_orderedDecals;
     std::deque<std::shared_ptr<Decal>> m_freeDecals;
@@ -102,7 +102,7 @@ protected:
     unsigned int m_numDecals = 0;
     bool m_recycle = true;
 
-    glm::vec3  m_vertexPositions[8];
-    glm::ivec3 m_triangles[12];
+    Vec3d  m_vertexPositions[8];
+    Vec3i m_triangles[12];
 };
 }

Source/Geometry/Particles/imstkRenderParticles.cpp

@@ -37,23 +37,23 @@ RenderParticles::RenderParticles(const unsigned int maxNumParticles /*=128*/, co
         LOG(WARNING) << "The maximum number of decals is 128";
     }
 
-    m_vertexPositions[0] = glm::vec3(0.5, 0.5, 0);
-    m_vertexPositions[1] = glm::vec3(0.5, -0.5, 0);
-    m_vertexPositions[2] = glm::vec3(-0.5, 0.5, 0);
-    m_vertexPositions[3] = glm::vec3(-0.5, -0.5, 0);
-
-    m_vertexNormals[0] = glm::vec3(0.0, 0.0, 1.0);
-    m_vertexNormals[1] = glm::vec3(0.0, 0.0, 1.0);
-    m_vertexNormals[2] = glm::vec3(0.0, 0.0, 1.0);
-    m_vertexNormals[3] = glm::vec3(0.0, 0.0, 1.0);
-
-    m_vertexUVs[0] = glm::vec2(1.0, 1.0);
-    m_vertexUVs[1] = glm::vec2(1.0, 0);
-    m_vertexUVs[2] = glm::vec2(0, 1.0);
-    m_vertexUVs[3] = glm::vec2(0, 0);
-
-    m_triangles[0] = glm::ivec3(1, 0, 3);
-    m_triangles[1] = glm::ivec3(0, 2, 3);
+    m_vertexPositions[0] = Vec3d(0.5, 0.5, 0);
+    m_vertexPositions[1] = Vec3d(0.5, -0.5, 0);
+    m_vertexPositions[2] = Vec3d(-0.5, 0.5, 0);
+    m_vertexPositions[3] = Vec3d(-0.5, -0.5, 0);
+
+    m_vertexNormals[0] = Vec3d(0.0, 0.0, 1.0);
+    m_vertexNormals[1] = Vec3d(0.0, 0.0, 1.0);
+    m_vertexNormals[2] = Vec3d(0.0, 0.0, 1.0);
+    m_vertexNormals[3] = Vec3d(0.0, 0.0, 1.0);
+
+    m_vertexUVs[0] = Vec2d(1.0, 1.0);
+    m_vertexUVs[1] = Vec2d(1.0, 0);
+    m_vertexUVs[2] = Vec2d(0, 1.0);
+    m_vertexUVs[3] = Vec2d(0, 0);
+
+    m_triangles[0] = Vec3i(1, 0, 3);
+    m_triangles[1] = Vec3i(0, 2, 3);
 }
 
 void

Source/Geometry/Particles/imstkRenderParticles.h

@@ -28,7 +28,7 @@
 #pragma warning( push )
 #pragma warning( disable : 4201 )
 #endif
-#include <glm/glm.hpp>
+
 #ifdef WIN32
 #pragma warning( pop )
 #endif
@@ -117,11 +117,11 @@ protected:
     float m_particleSize = 0.1f;
 
     std::vector<std::unique_ptr<RenderParticle>> m_particles; ///< Particle objects
-    glm::vec3  m_vertexPositions[4];
-    glm::vec3  m_vertexNormals[4];
-    glm::vec3  m_vertexTangents[4];
-    glm::vec2  m_vertexUVs[4];
-    glm::ivec3 m_triangles[2];
+    Vec3d  m_vertexPositions[4];
+    Vec3d  m_vertexNormals[4];
+    Vec3d  m_vertexTangents[4];
+    Vec2d  m_vertexUVs[4];
+    Vec3i  m_triangles[2];
 
     void applyTransform(const Mat4d& m) override;
 

Source/Geometry/imstkGeometry.h

@@ -210,11 +210,6 @@ protected:
     friend class VTKRenderer;
     friend class VTKRenderDelegate;
 
-    friend class VulkanSurfaceMeshRenderDelegate;
-    friend class VulkanLineMeshRenderDelegate;
-    friend class VulkanRenderDelegate;
-    friend class VulkanRenderer;
-
     ///
     /// \brief Directly apply transform to data
     ///

Source/MeshIO/CMakeLists.txt

@@ -5,8 +5,7 @@ include(imstkAddLibrary)
 imstk_add_library( MeshIO
   DEPENDS
     Common
-	Geometry
-    glm
+	Geometry    
     Assimp    
     VegaFEM::volumetricMesh
     ${VTK_LIBRARIES}

Source/Rendering/CMakeLists.txt

@@ -53,8 +53,7 @@ set(RENDERING_CPP_FILES ${VTK_CPP_FILES})
 set(RENDERING_SUBDIR
   VTKRenderer
   VTKRenderer/RenderDelegate)
-set(RENDERING_DEPENDENCIES
-  #GUIOverlay
+set(RENDERING_DEPENDENCIES  
   Materials
   openvr)
 
@@ -70,8 +69,7 @@ imstk_add_library( Rendering
   DEPENDS
     ${RENDERING_DEPENDENCIES}
     Scene
-    Animation
-    glm
+    Animation    
     ${VTK_LIBRARIES}
     ${RENDERING_LIBRARIES})
   #VERBOSE)

Source/Rendering/GUIOverlay/CMakeLists.txt

-#-----------------------------------------------------------------------------
-# Create target
-#-----------------------------------------------------------------------------
-if( NOT iMSTK_USE_Vulkan )
-
-else()
-include(imstkAddLibrary)
-
-file (GLOB_RECURSE GUI_h_files "${CMAKE_CURRENT_SOURCE_DIR}/imstk*.h")
-file (GLOB_RECURSE GUI_cpp_files "${CMAKE_CURRENT_SOURCE_DIR}/imstk*.cpp")
-
-if( iMSTK_USE_Vulkan )
-  set (IMPLEMENTATION_H_FILES
-    imgui_impl_vulkan.h
-    imgui_impl_glfw.h)
-  set (IMPLEMENTATION_CPP_FILES
-    imgui_impl_vulkan.cpp
-    imgui_impl_glfw.cpp)
-endif()
-
-imstk_add_library( GUIOverlay
-  H_FILES
-    ${IMGUI_SOURCE_DIR}/imconfig.h
-    ${IMGUI_SOURCE_DIR}/imgui.h
-    ${IMGUI_SOURCE_DIR}/imgui_internal.h
-    ${IMGUI_SOURCE_DIR}/imstb_rectpack.h
-    ${IMGUI_SOURCE_DIR}/imstb_textedit.h
-    ${IMGUI_SOURCE_DIR}/imstb_truetype.h
-    ${IMPLEMENTATION_H_FILES}
-    ${GUI_h_files}
-  CPP_FILES
-    ${IMGUI_SOURCE_DIR}/imgui.cpp
-    ${IMGUI_SOURCE_DIR}/imgui_draw.cpp
-    ${IMGUI_SOURCE_DIR}/imgui_widgets.cpp
-    ${IMPLEMENTATION_CPP_FILES}
-    ${GUI_cpp_files}
-  DEPENDS
-    Common
-    imgui
-    ${Vulkan_Dependency}
-  )
-endif()  
-
-#-----------------------------------------------------------------------------
-# Testing
-#-----------------------------------------------------------------------------
-#if( ${PROJECT_NAME}_BUILD_TESTING )
-#  add_subdirectory( Testing )
-#endif()

Source/Rendering/GUIOverlay/imgui_impl_glfw.cpp

-// ImGui Platform Binding for: GLFW
-// This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan..)
-// (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
-
-// Implemented features:
-//  [X] Platform: Clipboard support.
-//  [X] Platform: Gamepad navigation mapping. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
-//  [x] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: 3 cursors types are missing from GLFW.
-//  [X] Platform: Keyboard arrays indexed using GLFW_KEY_* codes, e.g. ImGui::IsKeyPressed(GLFW_KEY_SPACE).
-
-// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
-// If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.
-// https://github.com/ocornut/imgui
-
-// CHANGELOG
-// (minor and older changes stripped away, please see git history for details)
-//  2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls.
-//  2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
-//  2018-06-08: Misc: Extracted imgui_impl_glfw.cpp/.h away from the old combined GLFW+OpenGL/Vulkan examples.
-//  2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
-//  2018-02-20: Inputs: Added support for mouse cursors (ImGui::GetMouseCursor() value, passed to glfwSetCursor()).
-//  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
-//  2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
-//  2018-01-25: Inputs: Added gamepad support if ImGuiConfigFlags_NavEnableGamepad is set.
-//  2018-01-25: Inputs: Honoring the io.WantSetMousePos by repositioning the mouse (when using navigation and ImGuiConfigFlags_NavMoveMouse is set).
-//  2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
-//  2018-01-18: Inputs: Added mapping for ImGuiKey_Insert.
-//  2017-08-25: Inputs: MousePos set to -FLT_MAX,-FLT_MAX when mouse is unavailable/missing (instead of -1,-1).
-//  2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
-
-#include "imgui.h"
-#include "imgui_impl_glfw.h"
-
-// GLFW
-#include <GLFW/glfw3.h>
-#ifdef _WIN32
-#undef APIENTRY
-#define GLFW_EXPOSE_NATIVE_WIN32
-#include <GLFW/glfw3native.h>                                                                      // for glfwGetWin32Window
-#endif
-#define GLFW_HAS_WINDOW_TOPMOST     (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ GLFW_FLOATING
-#define GLFW_HAS_WINDOW_HOVERED     (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ GLFW_HOVERED
-#define GLFW_HAS_WINDOW_ALPHA       (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwSetWindowOpacity
-#define GLFW_HAS_PER_MONITOR_DPI    (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwGetMonitorContentScale
-#define GLFW_HAS_VULKAN             (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ glfwCreateWindowSurface
-
-// Data
-enum GlfwClientApi
-{
-    GlfwClientApi_Unknown,
-    GlfwClientApi_OpenGL,
-    GlfwClientApi_Vulkan
-};
-static GLFWwindow*   g_Window    = NULL;
-static GlfwClientApi g_ClientApi = GlfwClientApi_Unknown;
-static double        g_Time      = 0.0;
-static bool          g_MouseJustPressed[5] = { false, false, false, false, false };
-static GLFWcursor*   g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
-
-static const char*
-ImGui_ImplGlfw_GetClipboardText(void* user_data)
-{
-    return glfwGetClipboardString((GLFWwindow*)user_data);
-}
-
-static void
-ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text)
-{
-    glfwSetClipboardString((GLFWwindow*)user_data, text);
-}
-
-void
-ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow*, int button, int action, int /*mods*/)
-{
-    if (action == GLFW_PRESS && button >= 0 && button < IM_ARRAYSIZE(g_MouseJustPressed))
-    {
-        g_MouseJustPressed[button] = true;
-    }
-}
-
-void
-ImGui_ImplGlfw_ScrollCallback(GLFWwindow*, double xoffset, double yoffset)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    io.MouseWheelH += (float)xoffset;
-    io.MouseWheel  += (float)yoffset;
-}
-
-void
-ImGui_ImplGlfw_KeyCallback(GLFWwindow*, int key, int, int action, int mods)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    if (action == GLFW_PRESS)
-    {
-        io.KeysDown[key] = true;
-    }
-    if (action == GLFW_RELEASE)
-    {
-        io.KeysDown[key] = false;
-    }
-
-    (void)mods; // Modifiers are not reliable across systems
-    io.KeyCtrl  = io.KeysDown[GLFW_KEY_LEFT_CONTROL] || io.KeysDown[GLFW_KEY_RIGHT_CONTROL];
-    io.KeyShift = io.KeysDown[GLFW_KEY_LEFT_SHIFT] || io.KeysDown[GLFW_KEY_RIGHT_SHIFT];
-    io.KeyAlt   = io.KeysDown[GLFW_KEY_LEFT_ALT] || io.KeysDown[GLFW_KEY_RIGHT_ALT];
-    io.KeySuper = io.KeysDown[GLFW_KEY_LEFT_SUPER] || io.KeysDown[GLFW_KEY_RIGHT_SUPER];
-}
-
-void
-ImGui_ImplGlfw_CharCallback(GLFWwindow*, unsigned int c)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    if (c > 0 && c < 0x10000)
-    {
-        io.AddInputCharacter((unsigned short)c);
-    }
-}
-
-void
-ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
-{
-    glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
-    glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
-    glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
-    glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
-}
-
-static bool
-ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api)
-{
-    g_Window = window;
-    g_Time   = 0.0;
-
-    // Setup back-end capabilities flags
-    ImGuiIO& io = ImGui::GetIO();
-    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
-    io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
-
-    // Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array.
-    io.KeyMap[ImGuiKey_Tab]        = GLFW_KEY_TAB;
-    io.KeyMap[ImGuiKey_LeftArrow]  = GLFW_KEY_LEFT;
-    io.KeyMap[ImGuiKey_RightArrow] = GLFW_KEY_RIGHT;
-    io.KeyMap[ImGuiKey_UpArrow]    = GLFW_KEY_UP;
-    io.KeyMap[ImGuiKey_DownArrow]  = GLFW_KEY_DOWN;
-    io.KeyMap[ImGuiKey_PageUp]     = GLFW_KEY_PAGE_UP;
-    io.KeyMap[ImGuiKey_PageDown]   = GLFW_KEY_PAGE_DOWN;
-    io.KeyMap[ImGuiKey_Home]       = GLFW_KEY_HOME;
-    io.KeyMap[ImGuiKey_End]        = GLFW_KEY_END;
-    io.KeyMap[ImGuiKey_Insert]     = GLFW_KEY_INSERT;
-    io.KeyMap[ImGuiKey_Delete]     = GLFW_KEY_DELETE;
-    io.KeyMap[ImGuiKey_Backspace]  = GLFW_KEY_BACKSPACE;
-    io.KeyMap[ImGuiKey_Space]      = GLFW_KEY_SPACE;
-    io.KeyMap[ImGuiKey_Enter]      = GLFW_KEY_ENTER;
-    io.KeyMap[ImGuiKey_Escape]     = GLFW_KEY_ESCAPE;
-    io.KeyMap[ImGuiKey_A] = GLFW_KEY_A;
-    io.KeyMap[ImGuiKey_C] = GLFW_KEY_C;
-    io.KeyMap[ImGuiKey_V] = GLFW_KEY_V;
-    io.KeyMap[ImGuiKey_X] = GLFW_KEY_X;
-    io.KeyMap[ImGuiKey_Y] = GLFW_KEY_Y;
-    io.KeyMap[ImGuiKey_Z] = GLFW_KEY_Z;
-
-    io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText;
-    io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText;
-    io.ClipboardUserData  = g_Window;
-#if defined(_WIN32)
-    io.ImeWindowHandle = (void*)glfwGetWin32Window(g_Window);
-#endif
-
-    g_MouseCursors[ImGuiMouseCursor_Arrow]      = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
-    g_MouseCursors[ImGuiMouseCursor_TextInput]  = glfwCreateStandardCursor(GLFW_IBEAM_CURSOR);
-    g_MouseCursors[ImGuiMouseCursor_ResizeAll]  = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);  // FIXME: GLFW doesn't have this.
-    g_MouseCursors[ImGuiMouseCursor_ResizeNS]   = glfwCreateStandardCursor(GLFW_VRESIZE_CURSOR);
-    g_MouseCursors[ImGuiMouseCursor_ResizeEW]   = glfwCreateStandardCursor(GLFW_HRESIZE_CURSOR);