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Examples: Vulkan: Extracted into imgui_impl_vulkan.*, reused imgui_impl_glfw* files.

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This commit is contained in:
omar 2018-02-16 22:50:19 +01:00
parent ef521d1e0b
commit 90dffb5a06
6 changed files with 105 additions and 246 deletions
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232
examples/vulkan_example/imgui_impl_glfw_vulkan.cpp → examples/imgui_impl_vulkan.cpp
View File

@ -10,7 +10,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback, ImGui_ImplGlfwVulkan_Render() calls ImGui_ImplGlfwVulkan_RenderDrawData() itself.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback, ImGui_ImplVulkan_Render() calls ImGui_ImplVulkan_RenderDrawData() itself.
// 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.
// 2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
@ -23,23 +23,7 @@
// 2016-08-27: Vulkan: Fix Vulkan example for use when a depth buffer is active.
#include "imgui.h"
#include "imgui_impl_glfw_vulkan.h"
// GLFW
#define GLFW_INCLUDE_NONE
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
#ifdef _WIN32
#undef APIENTRY
#define GLFW_EXPOSE_NATIVE_WIN32
#define GLFW_EXPOSE_NATIVE_WGL
#include <GLFW/glfw3native.h>
#endif
// GLFW Data
static GLFWwindow* g_Window = NULL;
static double g_Time = 0.0f;
static bool g_MouseJustPressed[3] = { false, false, false };
#include "imgui_impl_vulkan.h"
// Vulkan Data
static VkAllocationCallbacks* g_Allocator = NULL;
@ -149,7 +133,7 @@ static uint32_t __glsl_shader_frag_spv[] =
0x00010038
};
static uint32_t ImGui_ImplGlfwVulkan_MemoryType(VkMemoryPropertyFlags properties, uint32_t type_bits)
static uint32_t ImGui_ImplVulkan_MemoryType(VkMemoryPropertyFlags properties, uint32_t type_bits)
{
VkPhysicalDeviceMemoryProperties prop;
vkGetPhysicalDeviceMemoryProperties(g_Gpu, &prop);
@ -159,14 +143,14 @@ static uint32_t ImGui_ImplGlfwVulkan_MemoryType(VkMemoryPropertyFlags properties
return 0xffffffff; // Unable to find memoryType
}
static void ImGui_ImplGlfwVulkan_VkResult(VkResult err)
static void ImGui_ImplVulkan_VkResult(VkResult err)
{
if (g_CheckVkResult)
g_CheckVkResult(err);
}
// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
void ImGui_ImplGlfwVulkan_RenderDrawData(ImDrawData* draw_data)
void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data)
{
VkResult err;
ImGuiIO& io = ImGui::GetIO();
@ -188,18 +172,18 @@ void ImGui_ImplGlfwVulkan_RenderDrawData(ImDrawData* draw_data)
buffer_info.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
err = vkCreateBuffer(g_Device, &buffer_info, g_Allocator, &g_VertexBuffer[g_FrameIndex]);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(g_Device, g_VertexBuffer[g_FrameIndex], &req);
g_BufferMemoryAlignment = (g_BufferMemoryAlignment > req.alignment) ? g_BufferMemoryAlignment : req.alignment;
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size;
alloc_info.memoryTypeIndex = ImGui_ImplGlfwVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_VertexBufferMemory[g_FrameIndex]);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
err = vkBindBufferMemory(g_Device, g_VertexBuffer[g_FrameIndex], g_VertexBufferMemory[g_FrameIndex], 0);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
g_VertexBufferSize[g_FrameIndex] = vertex_buffer_size;
}
@ -218,18 +202,18 @@ void ImGui_ImplGlfwVulkan_RenderDrawData(ImDrawData* draw_data)
buffer_info.usage = VK_BUFFER_USAGE_INDEX_BUFFER_BIT;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
err = vkCreateBuffer(g_Device, &buffer_info, g_Allocator, &g_IndexBuffer[g_FrameIndex]);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(g_Device, g_IndexBuffer[g_FrameIndex], &req);
g_BufferMemoryAlignment = (g_BufferMemoryAlignment > req.alignment) ? g_BufferMemoryAlignment : req.alignment;
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size;
alloc_info.memoryTypeIndex = ImGui_ImplGlfwVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_IndexBufferMemory[g_FrameIndex]);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
err = vkBindBufferMemory(g_Device, g_IndexBuffer[g_FrameIndex], g_IndexBufferMemory[g_FrameIndex], 0);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
g_IndexBufferSize[g_FrameIndex] = index_buffer_size;
}
@ -238,9 +222,9 @@ void ImGui_ImplGlfwVulkan_RenderDrawData(ImDrawData* draw_data)
ImDrawVert* vtx_dst;
ImDrawIdx* idx_dst;
err = vkMapMemory(g_Device, g_VertexBufferMemory[g_FrameIndex], 0, vertex_size, 0, (void**)(&vtx_dst));
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
err = vkMapMemory(g_Device, g_IndexBufferMemory[g_FrameIndex], 0, index_size, 0, (void**)(&idx_dst));
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
@ -257,7 +241,7 @@ void ImGui_ImplGlfwVulkan_RenderDrawData(ImDrawData* draw_data)
range[1].memory = g_IndexBufferMemory[g_FrameIndex];
range[1].size = VK_WHOLE_SIZE;
err = vkFlushMappedMemoryRanges(g_Device, 2, range);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
vkUnmapMemory(g_Device, g_VertexBufferMemory[g_FrameIndex]);
vkUnmapMemory(g_Device, g_IndexBufferMemory[g_FrameIndex]);
}
@ -330,52 +314,7 @@ void ImGui_ImplGlfwVulkan_RenderDrawData(ImDrawData* draw_data)
}
}
static const char* ImGui_ImplGlfwVulkan_GetClipboardText(void* user_data)
{
return glfwGetClipboardString((GLFWwindow*)user_data);
}
static void ImGui_ImplGlfwVulkan_SetClipboardText(void* user_data, const char* text)
{
glfwSetClipboardString((GLFWwindow*)user_data, text);
}
void ImGui_ImplGlfwVulkan_MouseButtonCallback(GLFWwindow*, int button, int action, int /*mods*/)
{
if (action == GLFW_PRESS && button >= 0 && button < 3)
g_MouseJustPressed[button] = true;
}
void ImGui_ImplGlfwVulkan_ScrollCallback(GLFWwindow*, double xoffset, double yoffset)
{
ImGuiIO& io = ImGui::GetIO();
io.MouseWheelH += (float)xoffset;
io.MouseWheel += (float)yoffset;
}
void ImGui_ImplGlfwVulkan_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_ImplGlfwVulkan_CharCallback(GLFWwindow*, unsigned int c)
{
ImGuiIO& io = ImGui::GetIO();
if (c > 0 && c < 0x10000)
io.AddInputCharacter((unsigned short)c);
}
bool ImGui_ImplGlfwVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
{
ImGuiIO& io = ImGui::GetIO();
@ -403,17 +342,17 @@ bool ImGui_ImplGlfwVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
err = vkCreateImage(g_Device, &info, g_Allocator, &g_FontImage);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
VkMemoryRequirements req;
vkGetImageMemoryRequirements(g_Device, g_FontImage, &req);
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size;
alloc_info.memoryTypeIndex = ImGui_ImplGlfwVulkan_MemoryType(VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, req.memoryTypeBits);
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, req.memoryTypeBits);
err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_FontMemory);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
err = vkBindImageMemory(g_Device, g_FontImage, g_FontMemory, 0);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
// Create the Image View:
@ -427,7 +366,7 @@ bool ImGui_ImplGlfwVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
info.subresourceRange.levelCount = 1;
info.subresourceRange.layerCount = 1;
err = vkCreateImageView(g_Device, &info, g_Allocator, &g_FontView);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
// Update the Descriptor Set:
@ -453,32 +392,32 @@ bool ImGui_ImplGlfwVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
err = vkCreateBuffer(g_Device, &buffer_info, g_Allocator, &g_UploadBuffer);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(g_Device, g_UploadBuffer, &req);
g_BufferMemoryAlignment = (g_BufferMemoryAlignment > req.alignment) ? g_BufferMemoryAlignment : req.alignment;
VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size;
alloc_info.memoryTypeIndex = ImGui_ImplGlfwVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_UploadBufferMemory);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
err = vkBindBufferMemory(g_Device, g_UploadBuffer, g_UploadBufferMemory, 0);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
// Upload to Buffer:
{
char* map = NULL;
err = vkMapMemory(g_Device, g_UploadBufferMemory, 0, upload_size, 0, (void**)(&map));
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
memcpy(map, pixels, upload_size);
VkMappedMemoryRange range[1] = {};
range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
range[0].memory = g_UploadBufferMemory;
range[0].size = upload_size;
err = vkFlushMappedMemoryRanges(g_Device, 1, range);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
vkUnmapMemory(g_Device, g_UploadBufferMemory);
}
// Copy to Image:
@ -525,7 +464,7 @@ bool ImGui_ImplGlfwVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
return true;
}
bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
bool ImGui_ImplVulkan_CreateDeviceObjects()
{
VkResult err;
VkShaderModule vert_module;
@ -538,13 +477,13 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
vert_info.codeSize = sizeof(__glsl_shader_vert_spv);
vert_info.pCode = (uint32_t*)__glsl_shader_vert_spv;
err = vkCreateShaderModule(g_Device, &vert_info, g_Allocator, &vert_module);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
VkShaderModuleCreateInfo frag_info = {};
frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
frag_info.codeSize = sizeof(__glsl_shader_frag_spv);
frag_info.pCode = (uint32_t*)__glsl_shader_frag_spv;
err = vkCreateShaderModule(g_Device, &frag_info, g_Allocator, &frag_module);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
if (!g_FontSampler)
@ -561,7 +500,7 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
info.maxLod = 1000;
info.maxAnisotropy = 1.0f;
err = vkCreateSampler(g_Device, &info, g_Allocator, &g_FontSampler);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
if (!g_DescriptorSetLayout)
@ -577,7 +516,7 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
info.bindingCount = 1;
info.pBindings = binding;
err = vkCreateDescriptorSetLayout(g_Device, &info, g_Allocator, &g_DescriptorSetLayout);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
// Create Descriptor Set:
@ -588,7 +527,7 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
alloc_info.descriptorSetCount = 1;
alloc_info.pSetLayouts = &g_DescriptorSetLayout;
err = vkAllocateDescriptorSets(g_Device, &alloc_info, &g_DescriptorSet);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
if (!g_PipelineLayout)
@ -605,7 +544,7 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
layout_info.pushConstantRangeCount = 1;
layout_info.pPushConstantRanges = push_constants;
err = vkCreatePipelineLayout(g_Device, &layout_info, g_Allocator, &g_PipelineLayout);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
}
VkPipelineShaderStageCreateInfo stage[2] = {};
@ -703,7 +642,7 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
info.layout = g_PipelineLayout;
info.renderPass = g_RenderPass;
err = vkCreateGraphicsPipelines(g_Device, g_PipelineCache, 1, &info, g_Allocator, &g_Pipeline);
ImGui_ImplGlfwVulkan_VkResult(err);
ImGui_ImplVulkan_VkResult(err);
vkDestroyShaderModule(g_Device, vert_module, g_Allocator);
vkDestroyShaderModule(g_Device, frag_module, g_Allocator);
@ -711,7 +650,7 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
return true;
}
void ImGui_ImplGlfwVulkan_InvalidateFontUploadObjects()
void ImGui_ImplVulkan_InvalidateFontUploadObjects()
{
if (g_UploadBuffer)
{
@ -725,9 +664,9 @@ void ImGui_ImplGlfwVulkan_InvalidateFontUploadObjects()
}
}
void ImGui_ImplGlfwVulkan_InvalidateDeviceObjects()
void ImGui_ImplVulkan_InvalidateDeviceObjects()
{
ImGui_ImplGlfwVulkan_InvalidateFontUploadObjects();
ImGui_ImplVulkan_InvalidateFontUploadObjects();
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
{
@ -746,7 +685,7 @@ void ImGui_ImplGlfwVulkan_InvalidateDeviceObjects()
if (g_Pipeline) { vkDestroyPipeline(g_Device, g_Pipeline, g_Allocator); g_Pipeline = VK_NULL_HANDLE; }
}
bool ImGui_ImplGlfwVulkan_Init(GLFWwindow* window, bool install_callbacks, ImGui_ImplGlfwVulkan_Init_Data *init_data)
bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitData *init_data)
{
g_Allocator = init_data->allocator;
g_Gpu = init_data->gpu;
@ -756,104 +695,25 @@ bool ImGui_ImplGlfwVulkan_Init(GLFWwindow* window, bool install_callbacks, Im
g_DescriptorPool = init_data->descriptor_pool;
g_CheckVkResult = init_data->check_vk_result;
g_Window = window;
ImGuiIO& io = ImGui::GetIO();
io.KeyMap[ImGuiKey_Tab] = GLFW_KEY_TAB; // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
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_ImplGlfwVulkan_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfwVulkan_GetClipboardText;
io.ClipboardUserData = g_Window;
#ifdef _WIN32
io.ImeWindowHandle = glfwGetWin32Window(g_Window);
#endif
if (install_callbacks)
{
glfwSetMouseButtonCallback(window, ImGui_ImplGlfwVulkan_MouseButtonCallback);
glfwSetScrollCallback(window, ImGui_ImplGlfwVulkan_ScrollCallback);
glfwSetKeyCallback(window, ImGui_ImplGlfwVulkan_KeyCallback);
glfwSetCharCallback(window, ImGui_ImplGlfwVulkan_CharCallback);
}
ImGui_ImplGlfwVulkan_CreateDeviceObjects();
ImGui_ImplVulkan_CreateDeviceObjects();
return true;
}
void ImGui_ImplGlfwVulkan_Shutdown()
void ImGui_ImplVulkan_Shutdown()
{
ImGui_ImplGlfwVulkan_InvalidateDeviceObjects();
ImGui_ImplVulkan_InvalidateDeviceObjects();
}
void ImGui_ImplGlfwVulkan_NewFrame()
void ImGui_ImplVulkan_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
int w, h;
int display_w, display_h;
glfwGetWindowSize(g_Window, &w, &h);
glfwGetFramebufferSize(g_Window, &display_w, &display_h);
io.DisplaySize = ImVec2((float)w, (float)h);
io.DisplayFramebufferScale = ImVec2(w > 0 ? ((float)display_w / w) : 0, h > 0 ? ((float)display_h / h) : 0);
// Setup time step
double current_time = glfwGetTime();
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f/60.0f);
g_Time = current_time;
// Setup inputs
// (we already got mouse wheel, keyboard keys & characters from glfw callbacks polled in glfwPollEvents())
if (glfwGetWindowAttrib(g_Window, GLFW_FOCUSED))
{
double mouse_x, mouse_y;
glfwGetCursorPos(g_Window, &mouse_x, &mouse_y);
io.MousePos = ImVec2((float)mouse_x, (float)mouse_y);
}
else
{
io.MousePos = ImVec2(-FLT_MAX,-FLT_MAX);
}
for (int i = 0; i < 3; i++)
{
io.MouseDown[i] = g_MouseJustPressed[i] || glfwGetMouseButton(g_Window, i) != 0; // 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.
g_MouseJustPressed[i] = false;
}
// Hide OS mouse cursor if ImGui is drawing it
glfwSetInputMode(g_Window, GLFW_CURSOR, io.MouseDrawCursor ? GLFW_CURSOR_HIDDEN : GLFW_CURSOR_NORMAL);
// Start the frame. This call will update the io.WantCaptureMouse, io.WantCaptureKeyboard flag that you can use to dispatch inputs (or not) to your application.
ImGui::NewFrame();
}
void ImGui_ImplGlfwVulkan_Render(VkCommandBuffer command_buffer)
void ImGui_ImplVulkan_Render(VkCommandBuffer command_buffer)
{
g_CommandBuffer = command_buffer;
ImGui::Render();
ImGui_ImplGlfwVulkan_RenderDrawData(ImGui::GetDrawData());
ImGui_ImplVulkan_RenderDrawData(ImGui::GetDrawData());
g_CommandBuffer = VK_NULL_HANDLE;
g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
}

35
examples/imgui_impl_vulkan.h Normal file
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@ -0,0 +1,35 @@
// ImGui GLFW binding with Vulkan + shaders
// Missing features:
// [ ] User texture binding. Changes of ImTextureID aren't supported by this binding! See https://github.com/ocornut/imgui/pull/914
// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
// If you use this binding you'll need to call 5 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXX_CreateFontsTexture(), ImGui_ImplXXXX_NewFrame(), ImGui_ImplXXXX_Render() and ImGui_ImplXXXX_Shutdown().
// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
// https://github.com/ocornut/imgui
#include <vulkan/vulkan.h>
#define IMGUI_VK_QUEUED_FRAMES 2
struct ImGui_ImplVulkan_InitData
{
VkAllocationCallbacks* allocator;
VkPhysicalDevice gpu;
VkDevice device;
VkRenderPass render_pass;
VkPipelineCache pipeline_cache;
VkDescriptorPool descriptor_pool;
void (*check_vk_result)(VkResult err);
};
IMGUI_API bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitData *init_data);
IMGUI_API void ImGui_ImplVulkan_Shutdown();
IMGUI_API void ImGui_ImplVulkan_NewFrame();
IMGUI_API void ImGui_ImplVulkan_Render(VkCommandBuffer command_buffer);
// Called by Init/NewFrame/Shutdown
IMGUI_API void ImGui_ImplVulkan_InvalidateFontUploadObjects();
IMGUI_API void ImGui_ImplVulkan_InvalidateDeviceObjects();
IMGUI_API bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer);
IMGUI_API bool ImGui_ImplVulkan_CreateDeviceObjects();

46
examples/vulkan_example/imgui_impl_glfw_vulkan.h
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@ -1,46 +0,0 @@
// ImGui GLFW binding with Vulkan + shaders
// Missing features:
// [ ] User texture binding. Changes of ImTextureID aren't supported by this binding! See https://github.com/ocornut/imgui/pull/914
// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
// If you use this binding you'll need to call 5 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXX_CreateFontsTexture(), ImGui_ImplXXXX_NewFrame(), ImGui_ImplXXXX_Render() and ImGui_ImplXXXX_Shutdown().
// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
// https://github.com/ocornut/imgui
struct GLFWwindow;
#include <vulkan/vulkan.h>
#define IMGUI_VK_QUEUED_FRAMES 2
struct ImGui_ImplGlfwVulkan_Init_Data
{
VkAllocationCallbacks* allocator;
VkPhysicalDevice gpu;
VkDevice device;
VkRenderPass render_pass;
VkPipelineCache pipeline_cache;
VkDescriptorPool descriptor_pool;
void (*check_vk_result)(VkResult err);
};
IMGUI_API bool ImGui_ImplGlfwVulkan_Init(GLFWwindow* window, bool install_callbacks, ImGui_ImplGlfwVulkan_Init_Data *init_data);
IMGUI_API void ImGui_ImplGlfwVulkan_Shutdown();
IMGUI_API void ImGui_ImplGlfwVulkan_NewFrame();
IMGUI_API void ImGui_ImplGlfwVulkan_Render(VkCommandBuffer command_buffer);
// Use if you want to reset your rendering device without losing ImGui state.
IMGUI_API void ImGui_ImplGlfwVulkan_InvalidateFontUploadObjects();
IMGUI_API void ImGui_ImplGlfwVulkan_InvalidateDeviceObjects();
IMGUI_API bool ImGui_ImplGlfwVulkan_CreateFontsTexture(VkCommandBuffer command_buffer);
IMGUI_API bool ImGui_ImplGlfwVulkan_CreateDeviceObjects();
// 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.
IMGUI_API void ImGui_ImplGlfwVulkan_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
IMGUI_API void ImGui_ImplGlfwVulkan_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
IMGUI_API void ImGui_ImplGlfwVulkan_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
IMGUI_API void ImGui_ImplGlfwVulkan_CharCallback(GLFWwindow* window, unsigned int c);

22
examples/vulkan_example/main.cpp
View File

@ -2,7 +2,8 @@
// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
#include "imgui.h"
#include "imgui_impl_glfw_vulkan.h"
#include "../imgui_impl_glfw.h"
#include "../imgui_impl_vulkan.h"
#include <stdio.h> // printf, fprintf
#include <stdlib.h> // abort
@ -616,7 +617,7 @@ int main(int, char**)
// Setup ImGui binding
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
ImGui_ImplGlfwVulkan_Init_Data init_data = {};
ImGui_ImplVulkan_InitData init_data = {};
init_data.allocator = g_Allocator;
init_data.gpu = g_Gpu;
init_data.device = g_Device;
@ -624,7 +625,8 @@ int main(int, char**)
init_data.pipeline_cache = g_PipelineCache;
init_data.descriptor_pool = g_DescriptorPool;
init_data.check_vk_result = check_vk_result;
ImGui_ImplGlfwVulkan_Init(window, true, &init_data);
ImGui_ImplVulkan_Init(&init_data);
ImGui_ImplGlfw_Init(window, true);
//io.NavFlags |= ImGuiNavFlags_EnableKeyboard; // Enable Keyboard Controls
// Setup style
@ -657,7 +659,7 @@ int main(int, char**)
err = vkBeginCommandBuffer(g_CommandBuffer[g_FrameIndex], &begin_info);
check_vk_result(err);
ImGui_ImplGlfwVulkan_CreateFontsTexture(g_CommandBuffer[g_FrameIndex]);
ImGui_ImplVulkan_CreateFontsTexture(g_CommandBuffer[g_FrameIndex]);
VkSubmitInfo end_info = {};
end_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
@ -670,7 +672,7 @@ int main(int, char**)
err = vkDeviceWaitIdle(g_Device);
check_vk_result(err);
ImGui_ImplGlfwVulkan_InvalidateFontUploadObjects();
ImGui_ImplVulkan_InvalidateFontUploadObjects();
}
bool show_demo_window = true;
@ -681,9 +683,9 @@ int main(int, char**)
// Hence we must render once and increase the g_FrameIndex without presenting, which we do before entering the render loop.
// This is also the reason why frame_end() is split into frame_end() and frame_present(), the later one not being called here.
#ifdef IMGUI_UNLIMITED_FRAME_RATE
ImGui_ImplGlfwVulkan_NewFrame();
ImGui_ImplVulkan_NewFrame();
frame_begin();
ImGui_ImplGlfwVulkan_Render(g_CommandBuffer[g_FrameIndex]);
ImGui_ImplVulkan_Render(g_CommandBuffer[g_FrameIndex]);
frame_end();
g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
#endif // IMGUI_UNLIMITED_FRAME_RATE
@ -696,7 +698,7 @@ int main(int, char**)
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
glfwPollEvents();
ImGui_ImplGlfwVulkan_NewFrame();
ImGui_ImplVulkan_NewFrame();
// 1. Show a simple window.
// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
@ -737,7 +739,7 @@ int main(int, char**)
memcpy(&g_ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
frame_begin();
ImGui_ImplGlfwVulkan_Render(g_CommandBuffer[g_FrameIndex]);
ImGui_ImplVulkan_Render(g_CommandBuffer[g_FrameIndex]);
frame_end();
frame_present();
}
@ -745,7 +747,7 @@ int main(int, char**)
// Cleanup
VkResult err = vkDeviceWaitIdle(g_Device);
check_vk_result(err);
ImGui_ImplGlfwVulkan_Shutdown();
ImGui_ImplVulkan_Shutdown();
ImGui::DestroyContext();
cleanup_vulkan();
glfwTerminate();

6
examples/vulkan_example/vulkan_example.vcxproj
View File

@ -153,14 +153,16 @@
<ClCompile Include="..\..\imgui.cpp" />
<ClCompile Include="..\..\imgui_demo.cpp" />
<ClCompile Include="..\..\imgui_draw.cpp" />
<ClCompile Include="imgui_impl_glfw_vulkan.cpp" />
<ClCompile Include="..\imgui_impl_glfw.cpp" />
<ClCompile Include="..\imgui_impl_vulkan.cpp" />
<ClCompile Include="main.cpp" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="..\..\imconfig.h" />
<ClInclude Include="..\..\imgui.h" />
<ClInclude Include="..\..\imgui_internal.h" />
<ClInclude Include="imgui_impl_glfw_vulkan.h" />
<ClInclude Include="..\imgui_impl_glfw.h" />
<ClInclude Include="..\imgui_impl_vulkan.h" />
</ItemGroup>
<ItemGroup>
<None Include="..\..\misc\natvis\imgui.natvis" />

10
examples/vulkan_example/vulkan_example.vcxproj.filters
View File

@ -22,7 +22,10 @@
<ClCompile Include="main.cpp">
<Filter>sources</Filter>
</ClCompile>
<ClCompile Include="imgui_impl_glfw_vulkan.cpp">
<ClCompile Include="..\imgui_impl_glfw.cpp">
<Filter>sources</Filter>
</ClCompile>
<ClCompile Include="..\imgui_impl_vulkan.cpp">
<Filter>sources</Filter>
</ClCompile>
</ItemGroup>
@ -36,7 +39,10 @@
<ClInclude Include="..\..\imgui_internal.h">
<Filter>imgui</Filter>
</ClInclude>
<ClInclude Include="imgui_impl_glfw_vulkan.h">
<ClInclude Include="..\imgui_impl_glfw.h">
<Filter>sources</Filter>
</ClInclude>
<ClInclude Include="..\imgui_impl_vulkan.h">
<Filter>sources</Filter>
</ClInclude>
</ItemGroup>