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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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89
examples/imgui_impl_vulkan.cpp
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@ -57,6 +57,10 @@ static VkBuffer g_IndexBuffer[IMGUI_VK_QUEUED_FRAMES] = {};
static VkDeviceMemory g_UploadBufferMemory = VK_NULL_HANDLE;
static VkBuffer g_UploadBuffer = VK_NULL_HANDLE;
// Forward Declarations
static void ImGui_ImplVulkan_InitPlatformInterface();
static void ImGui_ImplVulkan_ShutdownPlatformInterface();
static uint32_t __glsl_shader_vert_spv[] =
{
0x07230203,0x00010000,0x00080001,0x0000002e,0x00000000,0x00020011,0x00000001,0x0006000b,
@ -699,12 +703,17 @@ bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo *init_data)
g_DescriptorPool = init_data->DescriptorPool;
g_CheckVkResult = init_data->CheckVkResultFn;
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplVulkan_CreateDeviceObjects();
if (io.ConfigFlags & ImGuiConfigFlags_MultiViewports)
ImGui_ImplVulkan_InitPlatformInterface();
return true;
}
void ImGui_ImplVulkan_Shutdown()
{
ImGui_ImplVulkan_ShutdownPlatformInterface();
ImGui_ImplVulkan_InvalidateDeviceObjects();
}
@ -790,3 +799,83 @@ VkPresentModeKHR ImGui_ImplVulkan_SelectPresentMode(VkPhysicalDevice physical_de
return VK_PRESENT_MODE_FIFO_KHR; // Always available
}
// --------------------------------------------------------------------------------------------------------
// Platform Windows (OPTIONAL/EXPERIMENTAL)
// --------------------------------------------------------------------------------------------------------
#include "imgui_internal.h" // ImGuiViewport
struct ImGuiPlatformDataVulkan
{
// store swap chain, render target/frame buffer, etc.
ImGuiPlatformDataVulkan() { }
~ImGuiPlatformDataVulkan() { }
};
static void ImGui_ImplVulkan_CreateViewport(ImGuiViewport* viewport)
{
ImGuiPlatformDataVulkan* data = IM_NEW(ImGuiPlatformDataVulkan)();
viewport->RendererUserData = data;
// FIXME-PLATFORM
//HWND hwnd = (HWND)viewport->PlatformHandle;
//IM_ASSERT(hwnd != 0);
//...
}
static void ImGui_ImplVulkan_DestroyViewport(ImGuiViewport* viewport)
{
if (ImGuiPlatformDataVulkan* data = (ImGuiPlatformDataVulkan*)viewport->RendererUserData)
{
//...
IM_DELETE(data);
}
viewport->RendererUserData = NULL;
}
static void ImGui_ImplVulkan_ResizeViewport(ImGuiViewport* viewport, int w, int h)
{
ImGuiPlatformDataVulkan* data = (ImGuiPlatformDataVulkan*)viewport->RendererUserData;
//...
(void)data;
(void)w;
(void)h;
}
static void ImGui_ImplVulkan_RenderViewport(ImGuiViewport* viewport)
{
ImGuiPlatformDataVulkan* data = (ImGuiPlatformDataVulkan*)viewport->RendererUserData;
ImVec4 clear_color = ImGui::GetStyle().Colors[ImGuiCol_WindowBg]; // FIXME-PLATFORM
clear_color.w = 1.0f;
(void)data;
// clear
// call ImGui_ImplVulkan_RenderDrawData(&viewport->DrawData)
}
static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport)
{
ImGuiPlatformDataVulkan* data = (ImGuiPlatformDataVulkan*)viewport->RendererUserData;
(void)data;
//...
}
void ImGui_ImplVulkan_InitPlatformInterface()
{
ImGuiIO& io = ImGui::GetIO();
io.RendererInterface.CreateViewport = ImGui_ImplVulkan_CreateViewport;
io.RendererInterface.DestroyViewport = ImGui_ImplVulkan_DestroyViewport;
io.RendererInterface.ResizeViewport = ImGui_ImplVulkan_ResizeViewport;
io.RendererInterface.RenderViewport = ImGui_ImplVulkan_RenderViewport;
io.RendererInterface.SwapBuffers = ImGui_ImplVulkan_SwapBuffers;
}
void ImGui_ImplVulkan_ShutdownPlatformInterface()
{
ImGuiIO& io = ImGui::GetIO();
memset(&io.RendererInterface, 0, sizeof(io.RendererInterface));
}