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Examples: GLFW, Vulkan: GLFW binding viewport tweaks to supports Vulkan better (do not call SwapBuffer, share context etc.). Added DUMMY (empty) platform/viewport interface in the viewport code.

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This commit is contained in:
omar
2018-03-02 19:23:01 +01:00
parent 5b282bdd48
commit 9da475e4e8
4 changed files with 123 additions and 10 deletions
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37
examples/imgui_impl_glfw.cpp
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@ -36,10 +36,17 @@
#endif
// Data
static GLFWwindow* g_Window = NULL;
static double g_Time = 0.0f;
static bool g_MouseJustPressed[5] = { false, false, false, false, false };
static GLFWcursor* g_MouseCursors[ImGuiMouseCursor_Count_] = { 0 };
enum GlfwClientApi
{
GlfwClientApi_Unknown,
GlfwClientApi_OpenGL,
GlfwClientApi_Vulkan
};
static GLFWwindow* g_Window = NULL;
static GlfwClientApi g_ClientApi = GlfwClientApi_Unknown;
static double g_Time = 0.0f;
static bool g_MouseJustPressed[5] = { false, false, false, false, false };
static GLFWcursor* g_MouseCursors[ImGuiMouseCursor_Count_] = { 0 };
// Forward Declarations
static void ImGui_ImplGlfw_InitPlatformInterface();
@ -98,7 +105,7 @@ void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
}
bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
{
g_Window = window;
@ -149,6 +156,15 @@ bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
if (io.ConfigFlags & ImGuiConfigFlags_MultiViewports)
ImGui_ImplGlfw_InitPlatformInterface();
g_ClientApi = GlfwClientApi_OpenGL;
return true;
}
bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks)
{
if (!ImGui_ImplGlfw_Init(window, install_callbacks))
return false;
g_ClientApi = GlfwClientApi_Vulkan;
return true;
}
@ -161,6 +177,7 @@ void ImGui_ImplGlfw_Shutdown()
glfwDestroyCursor(g_MouseCursors[cursor_n]);
g_MouseCursors[cursor_n] = NULL;
}
g_ClientApi = GlfwClientApi_Unknown;
}
static void ImGui_ImplGlfw_UpdateMouse()
@ -176,7 +193,6 @@ static void ImGui_ImplGlfw_UpdateMouse()
io.MouseHoveredViewport = 0;
// Update buttons
ImGuiIO& io = ImGui::GetIO();
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
// If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
@ -296,7 +312,8 @@ static void ImGui_ImplGlfw_CreateViewport(ImGuiViewport* viewport)
glfwWindowHint(GLFW_VISIBLE, false);
glfwWindowHint(GLFW_FOCUSED, false);
glfwWindowHint(GLFW_DECORATED, (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? false : true);
data->Window = glfwCreateWindow((int)viewport->Size.x, (int)viewport->Size.y, "No Title Yet", NULL, g_Window);
GLFWwindow* share_window = (g_ClientApi == GlfwClientApi_OpenGL) ? g_Window : NULL;
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;
viewport->Name = NULL;
@ -405,7 +422,8 @@ static void ImGui_ImplGlfw_SetWindowTitle(ImGuiViewport* viewport, const char* t
static void ImGui_ImplGlfw_RenderViewport(ImGuiViewport* viewport)
{
ImGuiPlatformDataGlfw* data = (ImGuiPlatformDataGlfw*)viewport->PlatformUserData;
glfwMakeContextCurrent(data->Window);
if (g_ClientApi == GlfwClientApi_OpenGL)
glfwMakeContextCurrent(data->Window);
if (glfwWindowShouldClose(data->Window))
viewport->PlatformRequestClose = true;
@ -414,7 +432,8 @@ static void ImGui_ImplGlfw_RenderViewport(ImGuiViewport* viewport)
static void ImGui_ImplGlfw_SwapBuffers(ImGuiViewport* viewport)
{
ImGuiPlatformDataGlfw* data = (ImGuiPlatformDataGlfw*)viewport->PlatformUserData;
glfwSwapBuffers(data->Window);
if (g_ClientApi == GlfwClientApi_OpenGL)
glfwSwapBuffers(data->Window);
}
static void ImGui_ImplGlfw_InitPlatformInterface()