int main(int, char**)
{
// Setup SDL
if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER) != 0)
{
printf("Error: %s\n", SDL_GetError());
return 1;
}
// Setup window
SDL_DisplayMode current;
SDL_GetCurrentDisplayMode(0, ¤t);
SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+Vulkan example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_VULKAN|SDL_WINDOW_RESIZABLE);
// Setup Vulkan
uint32_t extensions_count = 0;
SDL_Vulkan_GetInstanceExtensions(window, &extensions_count, NULL);
const char** extensions = new const char*[extensions_count];
SDL_Vulkan_GetInstanceExtensions(window, &extensions_count, extensions);
SetupVulkan(extensions, extensions_count);
delete[] extensions;
// Create Window Surface
VkSurfaceKHR surface;
VkResult err;
if (SDL_Vulkan_CreateSurface(window, g_Instance, &surface) == 0)
{
printf("Failed to create Vulkan surface.\n");
return 1;
}
// Create Framebuffers
int w, h;
SDL_GetWindowSize(window, &w, &h);
ImGui_ImplVulkanH_WindowData* wd = &g_WindowData;
SetupVulkanWindowData(wd, surface, w, h);
// Setup ImGui binding
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
// Setup SDL binding
ImGui_ImplSDL2_InitForVulkan(window);
// Setup Vulkan binding
ImGui_ImplVulkan_InitInfo init_info = {};
init_info.Instance = g_Instance;
init_info.PhysicalDevice = g_PhysicalDevice;
init_info.Device = g_Device;
init_info.QueueFamily = g_QueueFamily;
init_info.Queue = g_Queue;
init_info.PipelineCache = g_PipelineCache;
init_info.DescriptorPool = g_DescriptorPool;
init_info.Allocator = g_Allocator;
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
// Setup style
ImGui::StyleColorsDark();
//ImGui::StyleColorsClassic();
// Load Fonts
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
// - If the file cannot be loaded, the function will return NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
// - Read 'misc/fonts/README.txt' for more instructions and details.
// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
//io.Fonts->AddFontDefault();
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
//io.Fonts->AddFontFromFileTTF("../../misc/fonts/ProggyTiny.ttf", 10.0f);
//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());
//IM_ASSERT(font != NULL);
// Upload Fonts
{
// Use any command queue
VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool;
VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer;
err = vkResetCommandPool(g_Device, command_pool, 0);
check_vk_result(err);
VkCommandBufferBeginInfo begin_info = {};
begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
err = vkBeginCommandBuffer(command_buffer, &begin_info);
check_vk_result(err);
ImGui_ImplVulkan_CreateFontsTexture(command_buffer);
VkSubmitInfo end_info = {};
end_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
end_info.commandBufferCount = 1;
end_info.pCommandBuffers = &command_buffer;
err = vkEndCommandBuffer(command_buffer);
check_vk_result(err);
err = vkQueueSubmit(g_Queue, 1, &end_info, VK_NULL_HANDLE);
check_vk_result(err);
err = vkDeviceWaitIdle(g_Device);
check_vk_result(err);
ImGui_ImplVulkan_InvalidateFontUploadObjects();
}
bool show_demo_window = true;
bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
// Main loop
bool done = false;
while (!done)
{
// Poll and handle events (inputs, window resize, etc.)
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
// - 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.
SDL_Event event;
while (SDL_PollEvent(&event))
{
ImGui_ImplSDL2_ProcessEvent(&event);
if (event.type == SDL_QUIT)
done = true;
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_RESIZED && event.window.windowID == SDL_GetWindowID(window))
ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, &g_WindowData, g_Allocator, (int)event.window.data1, (int)event.window.data2);
}
// Start the Dear ImGui frame
ImGui_ImplVulkan_NewFrame();
ImGui_ImplSDL2_NewFrame(window);
ImGui::NewFrame();
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);
// 2. Show a simple window that we create ourselves. We use a Begin/End pair to created a named window.
{
static float f = 0.0f;
static int counter = 0;
ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it.
ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too)
ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state
ImGui::Checkbox("Another Window", &show_another_window);
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)
counter++;
ImGui::SameLine();
ImGui::Text("counter = %d", counter);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
ImGui::End();
}
// 3. Show another simple window.
if (show_another_window)
{
ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
ImGui::Text("Hello from another window!");
if (ImGui::Button("Close Me"))
show_another_window = false;
ImGui::End();
}
// Rendering
ImGui::Render();
memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
FrameRender(wd);
FramePresent(wd);
}
// Cleanup
err = vkDeviceWaitIdle(g_Device);
check_vk_result(err);
ImGui_ImplVulkan_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext();
SDL_DestroyWindow(window);
CleanupVulkan();
SDL_Quit();
return 0;
}
void FrameLoop()
{
int Diff_Frame;
DBL Diff_Clock;
SHELLRET Pre_Scene_Result, Frame_Result;
Diff_Clock = opts.FrameSeq.FinalClock - opts.FrameSeq.InitialClock;
if(opts.Options & CYCLIC_ANIMATION)
Diff_Frame = opts.FrameSeq.FinalFrame - opts.FrameSeq.InitialFrame + 1;
else
Diff_Frame = opts.FrameSeq.FinalFrame - opts.FrameSeq.InitialFrame;
Clock_Delta = ((Diff_Frame == 0) ? 0 : Diff_Clock/Diff_Frame);
// Execute the first shell-out command
Pre_Scene_Result = (POV_SHELLOUT_CAST)POV_SHELLOUT(PRE_SCENE_SHL);
// Loop over each frame
if(Pre_Scene_Result != ALL_SKIP_RET)
{
if(Pre_Scene_Result != SKIP_ONCE_RET)
{
for(opts.FrameSeq.FrameNumber = opts.FrameSeq.InitialFrame,
opts.FrameSeq.Clock_Value = opts.FrameSeq.InitialClock;
opts.FrameSeq.FrameNumber <= opts.FrameSeq.FinalFrame;
// ISO/IEC 14882:1998(E) section 5.18 Comma operator [expr.comma] (page 90) says
// that comma expressions are evaluated left-to-right, and according to section
// 6.5.3 The for statement [stmt.for] (page 97) the following is an expression.
// I just hope all compilers really know about the standard... [trf]
opts.FrameSeq.FrameNumber++,
opts.FrameSeq.Clock_Value = opts.FrameSeq.InitialClock +
(Clock_Delta * (DBL)(opts.FrameSeq.FrameNumber - opts.FrameSeq.InitialFrame)))
{
if(opts.FrameSeq.FrameType == FT_MULTIPLE_FRAME)
{
START_TIME
Send_Progress("Processing Frame", PROGRESS_PROCESSING_FRAME);
}
setup_output_file_name();
// Execute a shell-out command before tracing
Frame_Result = (POV_SHELLOUT_CAST)POV_SHELLOUT(PRE_FRAME_SHL);
if(Frame_Result == ALL_SKIP_RET)
break;
if(Frame_Result != SKIP_ONCE_RET)
{
FrameRender();
// Execute a shell-out command after tracing
Frame_Result = (POV_SHELLOUT_CAST)POV_SHELLOUT(POST_FRAME_SHL);
if((Frame_Result == SKIP_ONCE_RET) || (Frame_Result == ALL_SKIP_RET))
break;
}
if(opts.FrameSeq.FrameType == FT_MULTIPLE_FRAME)
Send_FrameStatistics();
Do_Cooperate(1);
}
// Print total stats ...
if(opts.FrameSeq.FrameType == FT_MULTIPLE_FRAME)
{
opts.FrameSeq.FrameNumber--;
Send_RenderStatistics(true);
opts.FrameSeq.FrameNumber++;
}
}
// Execute the final shell-out command
POV_SHELLOUT(POST_SCENE_SHL);
}
}
