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Merge branch 'master' into viewport + specific changes for GLFW callbacks

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# Conflicts:
#	examples/example_glfw_opengl3/main.cpp
#	examples/example_win32_directx11/main.cpp
#	examples/example_win32_directx9/main.cpp
#	examples/imgui_impl_glfw.cpp
This commit is contained in:
omar
2018-11-08 16:56:51 +01:00
parent 797f2044cd 772354377b
commit a3d6554e8e
17 changed files with 99 additions and 58 deletions
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2
docs/CHANGELOG.txt
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@@ -78,7 +78,9 @@ Other Changes:
in particular, points_count==0 could lead to a memory stomp if the draw list was previously empty.
- Examples: DirectX10, DirectX11: Removed seemingly unnecessary calls to invalidate and recreate device objects
in the WM_SIZE handler. (#2088) [@ice1000]
- Examples: GLFW: User previously installed GLFW callbacks are now saved and chain-called by the default callbacks. (#1759)
- Examples: OpenGL3+GLFW: Fixed error condition when using the GLAD loader. (#2157) [@blackball]
- Examples: OpenGL3+GLFW/SDL: Made main.cpp compile with IMGUI_IMPL_OPENGL_LOADER_CUSTOM (may be missing init). (#2178) [@doug-moen]
-----------------------------------------------------------------------

6
examples/example_allegro5/main.cpp
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@@ -22,14 +22,16 @@ int main(int, char**)
al_register_event_source(queue, al_get_keyboard_event_source());
al_register_event_source(queue, al_get_mouse_event_source());
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
// Setup Platform/Renderer bindings
ImGui_ImplAllegro5_Init(display);
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_apple_opengl2/main.mm
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@@ -237,16 +237,17 @@
if ([view openGLContext] == nil)
NSLog(@"No OpenGL Context!");
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
// Setup Platform/Renderer bindings
ImGui_ImplOSX_Init();
ImGui_ImplOpenGL2_Init();
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_freeglut_opengl2/main.cpp
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@@ -95,16 +95,17 @@ int main(int argc, char** argv)
// otherwise it is possible to install our own functions and call the imgui_impl_freeglut.h functions ourselves.
glutDisplayFunc(glut_display_func);
// Setup Dear ImGui binding
// Setup Dear ImGui context
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
// Setup Platform/Renderer bindings
ImGui_ImplFreeGLUT_Init();
ImGui_ImplFreeGLUT_InstallFuncs();
ImGui_ImplOpenGL2_Init();
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_glfw_opengl2/main.cpp
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@@ -36,7 +36,7 @@ int main(int, char**)
glfwMakeContextCurrent(window);
glfwSwapInterval(1); // Enable vsync
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -46,10 +46,11 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Platform/Renderer bindings
ImGui_ImplGlfw_InitForOpenGL(window, true);
ImGui_ImplOpenGL2_Init();
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

7
examples/example_glfw_opengl3/main.cpp
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@@ -73,6 +73,8 @@ int main(int, char**)
bool err = glewInit() != GLEW_OK;
#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
bool err = gladLoadGL() == 0;
#else
bool err = false; // If you use IMGUI_IMPL_OPENGL_LOADER_CUSTOM, your loader is likely to requires some form of initialization.
#endif
if (err)
{
@@ -80,7 +82,7 @@ int main(int, char**)
return 1;
}
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -90,10 +92,11 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Platform/Renderer bindings
ImGui_ImplGlfw_InitForOpenGL(window, true);
ImGui_ImplOpenGL3_Init(glsl_version);
// Setup style
// Setup Style
ImGui::GetStyle().WindowRounding = 0.0f;
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

8
examples/example_glfw_vulkan/main.cpp
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@@ -350,7 +350,7 @@ int main(int, char**)
ImGui_ImplVulkanH_WindowData* wd = &g_WindowData;
SetupVulkanWindowData(wd, surface, w, h);
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -360,10 +360,8 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup GLFW binding
// Setup Platform/Renderer bindings
ImGui_ImplGlfw_InitForVulkan(window, true);
// Setup Vulkan binding
ImGui_ImplVulkan_InitInfo init_info = {};
init_info.Instance = g_Instance;
init_info.PhysicalDevice = g_PhysicalDevice;
@@ -376,7 +374,7 @@ int main(int, char**)
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

6
examples/example_marmalade/main.cpp
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@@ -16,14 +16,16 @@ int main(int, char**)
{
IwGxInit();
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
// Setup Platform/Renderer bindings
ImGui_Marmalade_Init(true);
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_sdl_opengl2/main.cpp
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@@ -34,7 +34,7 @@ int main(int, char**)
SDL_GLContext gl_context = SDL_GL_CreateContext(window);
SDL_GL_SetSwapInterval(1); // Enable vsync
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -43,10 +43,11 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Platform/Renderer bindings
ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
ImGui_ImplOpenGL2_Init();
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

7
examples/example_sdl_opengl3/main.cpp
View File

@@ -65,6 +65,8 @@ int main(int, char**)
bool err = glewInit() != GLEW_OK;
#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
bool err = gladLoadGL() == 0;
#else
bool err = false; // If you use IMGUI_IMPL_OPENGL_LOADER_CUSTOM, your loader is likely to requires some form of initialization.
#endif
if (err)
{
@@ -72,7 +74,7 @@ int main(int, char**)
return 1;
}
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -81,10 +83,11 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Platform/Renderer bindings
ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
ImGui_ImplOpenGL3_Init(glsl_version);
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

8
examples/example_sdl_vulkan/main.cpp
View File

@@ -333,7 +333,7 @@ int main(int, char**)
ImGui_ImplVulkanH_WindowData* wd = &g_WindowData;
SetupVulkanWindowData(wd, surface, w, h);
// Setup Dear ImGui binding
// Setup Dear ImGui context
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
@@ -341,10 +341,8 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup SDL binding
// Setup Platform/Renderer bindings
ImGui_ImplSDL2_InitForVulkan(window);
// Setup Vulkan binding
ImGui_ImplVulkan_InitInfo init_info = {};
init_info.Instance = g_Instance;
init_info.PhysicalDevice = g_PhysicalDevice;
@@ -357,7 +355,7 @@ int main(int, char**)
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_win32_directx10/main.cpp
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@@ -112,7 +112,7 @@ int main(int, char**)
ShowWindow(hwnd, SW_SHOWDEFAULT);
UpdateWindow(hwnd);
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -121,10 +121,11 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Platform/Renderer bindings
ImGui_ImplWin32_Init(hwnd);
ImGui_ImplDX10_Init(g_pd3dDevice);
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_win32_directx11/main.cpp
View File

@@ -128,7 +128,7 @@ int main(int, char**)
ShowWindow(hwnd, SW_SHOWDEFAULT);
UpdateWindow(hwnd);
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -140,10 +140,11 @@ int main(int, char**)
io.ConfigFlags |= ImGuiConfigFlags_DpiEnableScaleFonts; // FIXME-DPI: THIS CURRENTLY DOESN'T WORK AS EXPECTED. DON'T USE IN USER APP!
io.ConfigFlags |= ImGuiConfigFlags_DpiEnableScaleViewports; // FIXME-DPI
// Setup Platform/Renderer bindings
ImGui_ImplWin32_Init(hwnd);
ImGui_ImplDX11_Init(g_pd3dDevice, g_pd3dDeviceContext);
// Setup style
// Setup Style
ImGui::GetStyle().WindowRounding = 0.0f;
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_win32_directx12/main.cpp
View File

@@ -286,7 +286,7 @@ int main(int, char**)
ShowWindow(hwnd, SW_SHOWDEFAULT);
UpdateWindow(hwnd);
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -295,13 +295,14 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Platform/Renderer bindings
ImGui_ImplWin32_Init(hwnd);
ImGui_ImplDX12_Init(g_pd3dDevice, NUM_FRAMES_IN_FLIGHT,
DXGI_FORMAT_R8G8B8A8_UNORM,
g_pd3dSrvDescHeap->GetCPUDescriptorHandleForHeapStart(),
g_pd3dSrvDescHeap->GetGPUDescriptorHandleForHeapStart());
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

5
examples/example_win32_directx9/main.cpp
View File

@@ -75,7 +75,7 @@ int main(int, char**)
return 0;
}
// Setup Dear ImGui binding
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
@@ -84,10 +84,11 @@ int main(int, char**)
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Platform/Renderer bindings
ImGui_ImplWin32_Init(hwnd);
ImGui_ImplDX9_Init(g_pd3dDevice);
// Setup style
// Setup Style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();

68
examples/imgui_impl_glfw.cpp
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@@ -16,6 +16,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2018-11-07: Inputs: When installing our GLFW callbacks, we save user's previously installed ones - if any - and chain call them.
// 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.
@@ -54,12 +55,18 @@ enum GlfwClientApi
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 bool g_WantUpdateMonitors = true;
static GLFWwindow* g_Window = NULL; // Main window
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 bool g_WantUpdateMonitors = true;
// Chain GLFW callbacks for main viewport: our callbacks will call the user's previously installed callbacks, if any.
static GLFWmousebuttonfun g_PrevUserCallbackMousebutton = NULL;
static GLFWscrollfun g_PrevUserCallbackScroll = NULL;
static GLFWkeyfun g_PrevUserCallbackKey = NULL;
static GLFWcharfun g_PrevUserCallbackChar = NULL;
// Forward Declarations
static void ImGui_ImplGlfw_InitPlatformInterface();
@@ -76,49 +83,53 @@ 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*/)
void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods)
{
if (g_PrevUserCallbackMousebutton != NULL && window == g_Window)
g_PrevUserCallbackMousebutton(window, button, action, 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)
void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
{
if (g_PrevUserCallbackScroll != NULL && window == g_Window)
g_PrevUserCallbackScroll(window, xoffset, 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)
void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (g_PrevUserCallbackKey != NULL && window == g_Window)
g_PrevUserCallbackKey(window, key, scancode, action, 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
// 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)
void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c)
{
if (g_PrevUserCallbackChar != NULL && window == g_Window)
g_PrevUserCallbackChar(window, 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;
@@ -169,8 +180,18 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); // FIXME: GLFW doesn't have this.
g_MouseCursors[ImGuiMouseCursor_Hand] = glfwCreateStandardCursor(GLFW_HAND_CURSOR);
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
g_PrevUserCallbackMousebutton = NULL;
g_PrevUserCallbackScroll = NULL;
g_PrevUserCallbackKey = NULL;
g_PrevUserCallbackChar = NULL;
if (install_callbacks)
ImGui_ImplGlfw_InstallCallbacks(window);
{
g_PrevUserCallbackMousebutton = glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
g_PrevUserCallbackScroll = glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
g_PrevUserCallbackKey = glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
g_PrevUserCallbackChar = glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
}
// Our mouse update function expect PlatformHandle to be filled for the main viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
@@ -388,7 +409,12 @@ static void ImGui_ImplGlfw_CreateWindow(ImGuiViewport* viewport)
data->Window = glfwCreateWindow((int)viewport->Size.x, (int)viewport->Size.y, "No Title Yet", NULL, share_window);
data->WindowOwned = true;
viewport->PlatformHandle = (void*)data->Window;
ImGui_ImplGlfw_InstallCallbacks(data->Window);
// Install callbacks for secondary viewports
glfwSetMouseButtonCallback(data->Window, ImGui_ImplGlfw_MouseButtonCallback);
glfwSetScrollCallback(data->Window, ImGui_ImplGlfw_ScrollCallback);
glfwSetKeyCallback(data->Window, ImGui_ImplGlfw_KeyCallback);
glfwSetCharCallback(data->Window, ImGui_ImplGlfw_CharCallback);
glfwSetWindowCloseCallback(data->Window, ImGui_ImplGlfw_WindowCloseCallback);
glfwSetWindowPosCallback(data->Window, ImGui_ImplGlfw_WindowPosCallback);
glfwSetWindowSizeCallback(data->Window, ImGui_ImplGlfw_WindowSizeCallback);

5
examples/imgui_impl_glfw.h
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@@ -26,9 +26,8 @@ IMGUI_IMPL_API bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool in
IMGUI_IMPL_API void ImGui_ImplGlfw_Shutdown();
IMGUI_IMPL_API void ImGui_ImplGlfw_NewFrame();
// GLFW callbacks (installed by default if you enable 'install_callbacks' during initialization)
// Provided here if you want to chain callbacks.
// You can also handle inputs yourself and use those as a reference.
// InitXXX function with 'install_callbacks=true': install GLFW callbacks. They will call user's previously installed callbacks, if any.
// InitXXX function with 'install_callbacks=false': do not install GLFW callbacks. You will need to call them yourself from your own GLFW callbacks.
IMGUI_IMPL_API void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
IMGUI_IMPL_API void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
IMGUI_IMPL_API void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);