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Merge branch 'master' into 2016-07-navigation

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This commit is contained in:
omar 2017-05-26 13:44:08 +02:00
commit 8228dc20df
14 changed files with 254 additions and 81 deletions
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1
README.md
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@ -120,6 +120,7 @@ The Immediate Mode GUI paradigm may at first appear unusual to some users. This
- [A presentation by Rickard Gustafsson and Johannes Algelind](http://www.cse.chalmers.se/edu/year/2011/course/TDA361/Advanced%20Computer%20Graphics/IMGUI.pdf).
- [Jari Komppa's tutorial on building an ImGui library](http://iki.fi/sol/imgui/).
- [Casey Muratori's original video that popularized the concept](https://mollyrocket.com/861).
- [Nicolas Guillemot's CppCon'16 flashtalk about Dear ImGui](https://www.youtube.com/watch?v=LSRJ1jZq90k).
See the [Links page](https://github.com/ocornut/imgui/wiki/Links) for third-party bindings to different languages and frameworks.

8
examples/.gitignore vendored
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@ -25,6 +25,14 @@ opengl3_example/Release/*
opengl3_example/ipch/*
opengl3_example/x64/*
opengl3_example/opengl3_example
sdl_opengl2_example/Debug/*
sdl_opengl2_example/Release/*
sdl_opengl2_example/ipch/*
sdl_opengl2_example/x64/*
sdl_opengl3_example/Debug/*
sdl_opengl3_example/Release/*
sdl_opengl3_example/ipch/*
sdl_opengl3_example/x64/*
*.opensdf
*.sdf
*.suo

3
examples/sdl_opengl2_example/build_win32.bat Normal file
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@ -0,0 +1,3 @@
@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
mkdir Debug
cl /nologo /Zi /MD /I ..\.. /I ..\libs\gl3w /I %SDL_DIR%\include main.cpp imgui_impl_sdl.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c /FeDebug/sdl_opengl2_example.exe /FoDebug/ /link /libpath:%SDL_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console

3
examples/sdl_opengl3_example/build_win32.bat Normal file
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@ -0,0 +1,3 @@
@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
mkdir Debug
cl /nologo /Zi /MD /I ..\.. /I ..\libs\gl3w /I %SDL_DIR%\include main.cpp imgui_impl_sdl_gl3.cpp ..\..\imgui*.cpp ..\libs\gl3w\GL\gl3w.c /FeDebug/sdl_opengl3_example.exe /FoDebug/ /link /libpath:%SDL_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console

2
examples/vulkan_example/build_win32.bat
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@ -1,4 +1,4 @@
@REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
mkdir Debug
cl /nologo /Zi /MD /I ..\.. /I ..\libs\glfw\include /I %VULKAN_SDK%\include *.cpp ..\..\*.cpp /FeDebug/vulkan_example.exe /FoDebug/ /link /LIBPATH:..\libs\glfw\lib-vc2010-32 /libpath:%VULKAN_SDK%\bin32 glfw3.lib opengl32.lib gdi32.lib shell32.lib vulkan-1.lib
cl /nologo /Zi /MD /I ..\.. /I ..\libs\glfw\include /I %VULKAN_SDK%\include *.cpp ..\..\*.cpp /FeDebug/vulkan_example.exe /FoDebug/ /link /LIBPATH:..\libs\glfw\lib-vc2010-32 /libpath:%VULKAN_SDK%\lib32 glfw3.lib opengl32.lib gdi32.lib shell32.lib vulkan-1.lib

4
examples/vulkan_example/build_win64.bat Normal file
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@ -0,0 +1,4 @@
@REM Build for Visual Studio compiler. Run your copy of amd64/vcvars32.bat to setup 64-bit command-line compiler.
mkdir Debug
cl /nologo /Zi /MD /I ..\.. /I ..\libs\glfw\include /I %VULKAN_SDK%\include *.cpp ..\..\*.cpp /FeDebug/vulkan_example.exe /FoDebug/ /link /LIBPATH:..\libs\glfw\lib-vc2010-64 /libpath:%VULKAN_SDK%\lib glfw3.lib opengl32.lib gdi32.lib shell32.lib vulkan-1.lib

12
examples/vulkan_example/imgui_impl_glfw_vulkan.cpp
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@ -236,10 +236,10 @@ void ImGui_ImplGlfwVulkan_RenderDrawLists(ImDrawData* draw_data)
VkMappedMemoryRange range[2] = {};
range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
range[0].memory = g_VertexBufferMemory[g_FrameIndex];
range[0].size = vertex_size;
range[0].size = VK_WHOLE_SIZE;
range[1].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
range[1].memory = g_IndexBufferMemory[g_FrameIndex];
range[1].size = index_size;
range[1].size = VK_WHOLE_SIZE;
err = vkFlushMappedMemoryRanges(g_Device, 2, range);
ImGui_ImplGlfwVulkan_VkResult(err);
vkUnmapMemory(g_Device, g_VertexBufferMemory[g_FrameIndex]);
@ -301,10 +301,10 @@ void ImGui_ImplGlfwVulkan_RenderDrawLists(ImDrawData* draw_data)
else
{
VkRect2D scissor;
scissor.offset.x = (int32_t)(pcmd->ClipRect.x);
scissor.offset.y = (int32_t)(pcmd->ClipRect.y);
scissor.offset.x = (int32_t)(pcmd->ClipRect.x) > 0 ? (int32_t)(pcmd->ClipRect.x) : 0;
scissor.offset.y = (int32_t)(pcmd->ClipRect.y) > 0 ? (int32_t)(pcmd->ClipRect.y) : 0;
scissor.extent.width = (uint32_t)(pcmd->ClipRect.z - pcmd->ClipRect.x);
scissor.extent.height = (uint32_t)(pcmd->ClipRect.w - pcmd->ClipRect.y + 1); // TODO: + 1??????
scissor.extent.height = (uint32_t)(pcmd->ClipRect.w - pcmd->ClipRect.y + 1); // FIXME: Why +1 here?
vkCmdSetScissor(g_CommandBuffer, 0, 1, &scissor);
vkCmdDrawIndexed(g_CommandBuffer, pcmd->ElemCount, 1, idx_offset, vtx_offset, 0);
}
@ -483,6 +483,7 @@ bool ImGui_ImplGlfwVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
region.imageSubresource.layerCount = 1;
region.imageExtent.width = width;
region.imageExtent.height = height;
region.imageExtent.depth = 1;
vkCmdCopyBufferToImage(command_buffer, g_UploadBuffer, g_FontImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &region);
VkImageMemoryBarrier use_barrier[1] = {};
@ -540,6 +541,7 @@ bool ImGui_ImplGlfwVulkan_CreateDeviceObjects()
info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
info.minLod = -1000;
info.maxLod = 1000;
info.maxAnisotropy = 1.0f;
err = vkCreateSampler(g_Device, &info, g_Allocator, &g_FontSampler);
ImGui_ImplGlfwVulkan_VkResult(err);
}

252
examples/vulkan_example/main.cpp
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@ -12,6 +12,10 @@
#include "imgui_impl_glfw_vulkan.h"
#define IMGUI_MAX_POSSIBLE_BACK_BUFFERS 16
#define IMGUI_UNLIMITED_FRAME_RATE
//#ifdef _DEBUG
//#define IMGUI_VULKAN_DEBUG_REPORT
//#endif
static VkAllocationCallbacks* g_Allocator = NULL;
static VkInstance g_Instance = VK_NULL_HANDLE;
@ -22,17 +26,17 @@ static VkSwapchainKHR g_Swapchain = VK_NULL_HANDLE;
static VkRenderPass g_RenderPass = VK_NULL_HANDLE;
static uint32_t g_QueueFamily = 0;
static VkQueue g_Queue = VK_NULL_HANDLE;
static VkDebugReportCallbackEXT g_Debug_Report = VK_NULL_HANDLE;
static VkFormat g_ImageFormat = VK_FORMAT_B8G8R8A8_UNORM;
static VkFormat g_ViewFormat = VK_FORMAT_B8G8R8A8_UNORM;
static VkColorSpaceKHR g_ColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
static VkSurfaceFormatKHR g_SurfaceFormat;
static VkImageSubresourceRange g_ImageRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
static VkPresentModeKHR g_PresentMode;
static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE;
static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE;
static int fb_width, fb_height;
static uint32_t g_BackBufferIndex = 0;
static uint32_t g_BackbufferIndices[IMGUI_VK_QUEUED_FRAMES]; // keep track of recently rendered swapchain frame indices
static uint32_t g_BackBufferCount = 0;
static VkImage g_BackBuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
static VkImageView g_BackBufferView[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
@ -42,7 +46,8 @@ static uint32_t g_FrameIndex = 0;
static VkCommandPool g_CommandPool[IMGUI_VK_QUEUED_FRAMES];
static VkCommandBuffer g_CommandBuffer[IMGUI_VK_QUEUED_FRAMES];
static VkFence g_Fence[IMGUI_VK_QUEUED_FRAMES];
static VkSemaphore g_Semaphore[IMGUI_VK_QUEUED_FRAMES];
static VkSemaphore g_PresentCompleteSemaphore[IMGUI_VK_QUEUED_FRAMES];
static VkSemaphore g_RenderCompleteSemaphore[IMGUI_VK_QUEUED_FRAMES];
static VkClearValue g_ClearValue = {};
@ -76,14 +81,14 @@ static void resize_vulkan(GLFWwindow* /*window*/, int w, int h)
VkSwapchainCreateInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
info.surface = g_Surface;
info.imageFormat = g_ImageFormat;
info.imageColorSpace = g_ColorSpace;
info.imageFormat = g_SurfaceFormat.format;
info.imageColorSpace = g_SurfaceFormat.colorSpace;
info.imageArrayLayers = 1;
info.imageUsage |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
info.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
info.presentMode = VK_PRESENT_MODE_FIFO_KHR;
info.presentMode = g_PresentMode;
info.clipped = VK_TRUE;
info.oldSwapchain = old_swapchain;
VkSurfaceCapabilitiesKHR cap;
@ -93,6 +98,7 @@ static void resize_vulkan(GLFWwindow* /*window*/, int w, int h)
info.minImageCount = (cap.minImageCount + 2 < cap.maxImageCount) ? (cap.minImageCount + 2) : cap.maxImageCount;
else
info.minImageCount = cap.minImageCount + 2;
if (cap.currentExtent.width == 0xffffffff)
{
fb_width = w;
@ -120,14 +126,14 @@ static void resize_vulkan(GLFWwindow* /*window*/, int w, int h)
// Create the Render Pass:
{
VkAttachmentDescription attachment = {};
attachment.format = g_ViewFormat;
attachment.format = g_SurfaceFormat.format;
attachment.samples = VK_SAMPLE_COUNT_1_BIT;
attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
attachment.finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
VkAttachmentReference color_attachment = {};
color_attachment.attachment = 0;
color_attachment.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
@ -150,7 +156,7 @@ static void resize_vulkan(GLFWwindow* /*window*/, int w, int h)
VkImageViewCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
info.viewType = VK_IMAGE_VIEW_TYPE_2D;
info.format = g_ViewFormat;
info.format = g_SurfaceFormat.format;
info.components.r = VK_COMPONENT_SWIZZLE_R;
info.components.g = VK_COMPONENT_SWIZZLE_G;
info.components.b = VK_COMPONENT_SWIZZLE_B;
@ -184,20 +190,64 @@ static void resize_vulkan(GLFWwindow* /*window*/, int w, int h)
}
}
#ifdef IMGUI_VULKAN_DEBUG_REPORT
static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(
VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object, size_t location, int32_t messageCode, const char* pLayerPrefix, const char* pMessage, void* pUserData)
{
printf("[vulkan] ObjectType: %i\nMessage: %s\n\n", objectType, pMessage );
return VK_FALSE;
}
#endif // IMGUI_VULKAN_DEBUG_REPORT
static void setup_vulkan(GLFWwindow* window)
{
VkResult err;
// Create Vulkan Instance
{
uint32_t glfw_extensions_count;
const char** glfw_extensions = glfwGetRequiredInstanceExtensions(&glfw_extensions_count);
uint32_t extensions_count;
const char** glfw_extensions = glfwGetRequiredInstanceExtensions(&extensions_count);
VkInstanceCreateInfo create_info = {};
create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
create_info.enabledExtensionCount = glfw_extensions_count;
create_info.enabledExtensionCount = extensions_count;
create_info.ppEnabledExtensionNames = glfw_extensions;
#ifdef IMGUI_VULKAN_DEBUG_REPORT
// enabling multiple validation layers grouped as lunarg standard validation
const char* layers[] = {"VK_LAYER_LUNARG_standard_validation"};
create_info.enabledLayerCount = 1;
create_info.ppEnabledLayerNames = layers;
// need additional storage for char pointer to debug report extension
const char** extensions = (const char**)malloc(sizeof(const char*) * (extensions_count + 1));
for (size_t i = 0; i < extensions_count; i++)
extensions[i] = glfw_extensions[i];
extensions[ extensions_count ] = "VK_EXT_debug_report";
create_info.enabledExtensionCount = extensions_count+1;
create_info.ppEnabledExtensionNames = extensions;
#endif // IMGUI_VULKAN_DEBUG_REPORT
err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
check_vk_result(err);
#ifdef IMGUI_VULKAN_DEBUG_REPORT
free(extensions);
// create the debug report callback
VkDebugReportCallbackCreateInfoEXT debug_report_ci ={};
debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
debug_report_ci.pfnCallback = debug_report;
debug_report_ci.pUserData = NULL;
// get the proc address of the function pointer, required for used extensions
PFN_vkCreateDebugReportCallbackEXT vkCreateDebugReportCallbackEXT =
(PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
err = vkCreateDebugReportCallbackEXT( g_Instance, &debug_report_ci, g_Allocator, &g_Debug_Report );
check_vk_result(err);
#endif // IMGUI_VULKAN_DEBUG_REPORT
}
// Create Window Surface
@ -206,11 +256,21 @@ static void setup_vulkan(GLFWwindow* window)
check_vk_result(err);
}
// Get GPU (WARNING here we assume the first gpu is one we can use)
// Get GPU
{
uint32_t count = 1;
err = vkEnumeratePhysicalDevices(g_Instance, &count, &g_Gpu);
uint32_t gpu_count;
err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, NULL);
check_vk_result(err);
VkPhysicalDevice* gpus = (VkPhysicalDevice*)malloc(sizeof(VkPhysicalDevice) * gpu_count);
err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus);
check_vk_result(err);
// If a number >1 of GPUs got reported, you should find the best fit GPU for your purpose
// e.g. VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU if available, or with the greatest memory available, etc.
// for sake of simplicity we'll just take the first one, assuming it has a graphics queue family.
g_Gpu = gpus[0];
free(gpus);
}
// Get queue
@ -243,26 +303,83 @@ static void setup_vulkan(GLFWwindow* window)
// Get Surface Format
{
VkFormat image_view_format[][2] = {{VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_B8G8R8A8_UNORM}, {VK_FORMAT_B8G8R8A8_SRGB, VK_FORMAT_B8G8R8A8_UNORM}};
// Per Spec Format and View Format are expected to be the same unless VK_IMAGE_CREATE_MUTABLE_BIT was set at image creation
// Assuming that the default behavior is without setting this bit, there is no need for separate Spawchain image and image view format
// additionally several new color spaces were introduced with Vulkan Spec v1.0.40
// hence we must make sure that a format with the mostly available color space, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR, is found and used
uint32_t count;
vkGetPhysicalDeviceSurfaceFormatsKHR(g_Gpu, g_Surface, &count, NULL);
VkSurfaceFormatKHR *formats = (VkSurfaceFormatKHR*)malloc(sizeof(VkSurfaceFormatKHR) * count);
vkGetPhysicalDeviceSurfaceFormatsKHR(g_Gpu, g_Surface, &count, formats);
for (size_t i = 0; i < sizeof(image_view_format) / sizeof(image_view_format[0]); i++)
// first check if only one format, VK_FORMAT_UNDEFINED, is available, which would imply that any format is available
if (count == 1)
{
for (uint32_t j = 0; j < count; j++)
if( formats[0].format == VK_FORMAT_UNDEFINED )
{
if (formats[j].format == image_view_format[i][0])
g_SurfaceFormat.format = VK_FORMAT_B8G8R8A8_UNORM;
g_SurfaceFormat.colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
}
else
{ // no point in searching another format
g_SurfaceFormat = formats[0];
}
}
else
{
// request several formats, the first found will be used
VkFormat requestSurfaceImageFormat[] = {VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM};
VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
bool requestedFound = false;
for (size_t i = 0; i < sizeof(requestSurfaceImageFormat) / sizeof(requestSurfaceImageFormat[0]); i++)
{
if( requestedFound ) {
break;
}
for (uint32_t j = 0; j < count; j++)
{
g_ImageFormat = image_view_format[i][0];
g_ViewFormat = image_view_format[i][1];
g_ColorSpace = formats[j].colorSpace;
if (formats[j].format == requestSurfaceImageFormat[i] && formats[j].colorSpace == requestSurfaceColorSpace)
{
g_SurfaceFormat = formats[j];
requestedFound = true;
}
}
}
// if none of the requested image formats could be found, use the first available
if (!requestedFound)
g_SurfaceFormat = formats[0];
}
free(formats);
}
// Get Present Mode
{
// Requst a certain mode and confirm that it is available. If not use VK_PRESENT_MODE_FIFO_KHR which is mandatory
#ifdef IMGUI_UNLIMITED_FRAME_RATE
g_PresentMode = VK_PRESENT_MODE_IMMEDIATE_KHR;
#else
g_PresentMode = VK_PRESENT_MODE_FIFO_KHR;
#endif
uint32_t count = 0;
vkGetPhysicalDeviceSurfacePresentModesKHR(g_Gpu, g_Surface, &count, nullptr);
VkPresentModeKHR* presentModes = (VkPresentModeKHR*)malloc(sizeof(VkQueueFamilyProperties) * count);
vkGetPhysicalDeviceSurfacePresentModesKHR(g_Gpu, g_Surface, &count, presentModes);
bool presentModeAvailable = false;
for (size_t i = 0; i < count; i++)
{
if (presentModes[i] == g_PresentMode)
{
presentModeAvailable = true;
break;
}
}
if( !presentModeAvailable )
g_PresentMode = VK_PRESENT_MODE_FIFO_KHR; // always available
}
// Create Logical Device
{
int device_extension_count = 1;
@ -324,7 +441,9 @@ static void setup_vulkan(GLFWwindow* window)
{
VkSemaphoreCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
err = vkCreateSemaphore(g_Device, &info, g_Allocator, &g_Semaphore[i]);
err = vkCreateSemaphore(g_Device, &info, g_Allocator, &g_PresentCompleteSemaphore[i]);
check_vk_result(err);
err = vkCreateSemaphore(g_Device, &info, g_Allocator, &g_RenderCompleteSemaphore[i]);
check_vk_result(err);
}
}
@ -364,7 +483,8 @@ static void cleanup_vulkan()
vkDestroyFence(g_Device, g_Fence[i], g_Allocator);
vkFreeCommandBuffers(g_Device, g_CommandPool[i], 1, &g_CommandBuffer[i]);
vkDestroyCommandPool(g_Device, g_CommandPool[i], g_Allocator);
vkDestroySemaphore(g_Device, g_Semaphore[i], g_Allocator);
vkDestroySemaphore(g_Device, g_PresentCompleteSemaphore[i], g_Allocator);
vkDestroySemaphore(g_Device, g_RenderCompleteSemaphore[i], g_Allocator);
}
for (uint32_t i = 0; i < g_BackBufferCount; i++)
{
@ -374,6 +494,13 @@ static void cleanup_vulkan()
vkDestroyRenderPass(g_Device, g_RenderPass, g_Allocator);
vkDestroySwapchainKHR(g_Device, g_Swapchain, g_Allocator);
vkDestroySurfaceKHR(g_Instance, g_Surface, g_Allocator);
#ifdef IMGUI_VULKAN_DEBUG_REPORT
// get the proc address of the function pointer, required for used extensions
auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
vkDestroyDebugReportCallbackEXT(g_Instance, g_Debug_Report, g_Allocator);
#endif // IMGUI_VULKAN_DEBUG_REPORT
vkDestroyDevice(g_Device, g_Allocator);
vkDestroyInstance(g_Instance, g_Allocator);
}
@ -389,7 +516,7 @@ static void frame_begin()
check_vk_result(err);
}
{
err = vkAcquireNextImageKHR(g_Device, g_Swapchain, UINT64_MAX, g_Semaphore[g_FrameIndex], VK_NULL_HANDLE, &g_BackBufferIndex);
err = vkAcquireNextImageKHR(g_Device, g_Swapchain, UINT64_MAX, g_PresentCompleteSemaphore[g_FrameIndex], VK_NULL_HANDLE, &g_BackbufferIndices[g_FrameIndex]);
check_vk_result(err);
}
{
@ -405,7 +532,7 @@ static void frame_begin()
VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
info.renderPass = g_RenderPass;
info.framebuffer = g_Framebuffer[g_BackBufferIndex];
info.framebuffer = g_Framebuffer[g_BackbufferIndices[g_FrameIndex]];
info.renderArea.extent.width = fb_width;
info.renderArea.extent.height = fb_height;
info.clearValueCount = 1;
@ -418,28 +545,17 @@ static void frame_end()
{
VkResult err;
vkCmdEndRenderPass(g_CommandBuffer[g_FrameIndex]);
{
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.image = g_BackBuffer[g_BackBufferIndex];
barrier.subresourceRange = g_ImageRange;
vkCmdPipelineBarrier(g_CommandBuffer[g_FrameIndex], VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, NULL, 0, NULL, 1, &barrier);
}
{
VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &g_Semaphore[g_FrameIndex];
info.pWaitSemaphores = &g_PresentCompleteSemaphore[g_FrameIndex];
info.pWaitDstStageMask = &wait_stage;
info.commandBufferCount = 1;
info.pCommandBuffers = &g_CommandBuffer[g_FrameIndex];
info.signalSemaphoreCount = 1;
info.pSignalSemaphores = &g_RenderCompleteSemaphore[g_FrameIndex];
err = vkEndCommandBuffer(g_CommandBuffer[g_FrameIndex]);
check_vk_result(err);
@ -448,21 +564,31 @@ static void frame_end()
err = vkQueueSubmit(g_Queue, 1, &info, g_Fence[g_FrameIndex]);
check_vk_result(err);
}
{
VkResult res;
VkSwapchainKHR swapchains[1] = {g_Swapchain};
uint32_t indices[1] = {g_BackBufferIndex};
VkPresentInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
info.swapchainCount = 1;
info.pSwapchains = swapchains;
info.pImageIndices = indices;
info.pResults = &res;
err = vkQueuePresentKHR(g_Queue, &info);
check_vk_result(err);
check_vk_result(res);
}
g_FrameIndex = (g_FrameIndex) % IMGUI_VK_QUEUED_FRAMES;
}
static void frame_present()
{
VkResult err;
// If IMGUI_UNLIMITED_FRAME_RATE is defined we present the latest but one frame. Otherwise we present the latest rendered frame
#ifdef IMGUI_UNLIMITED_FRAME_RATE
uint32_t PresentIndex = (g_FrameIndex + IMGUI_VK_QUEUED_FRAMES - 1) % IMGUI_VK_QUEUED_FRAMES;
#else
uint32_t PresentIndex = g_FrameIndex;
#endif // IMGUI_UNLIMITED_FRAME_RATE
VkSwapchainKHR swapchains[1] = {g_Swapchain};
uint32_t indices[1] = {g_BackbufferIndices[PresentIndex]};
VkPresentInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &g_RenderCompleteSemaphore[PresentIndex];
info.swapchainCount = 1;
info.pSwapchains = swapchains;
info.pImageIndices = indices;
err = vkQueuePresentKHR(g_Queue, &info);
check_vk_result(err);
g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
}
static void error_callback(int error, const char* description)
@ -540,6 +666,17 @@ int main(int, char**)
bool show_another_window = false;
ImVec4 clear_color = ImColor(114, 144, 154);
// When IMGUI_UNLIMITED_FRAME_RATE is defined we render into latest image acquired from the swapchain but we display the image which was rendered before.
// 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();
frame_begin();
ImGui_ImplGlfwVulkan_Render(g_CommandBuffer[g_FrameIndex]);
frame_end();
g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
#endif // IMGUI_UNLIMITED_FRAME_RATE
// Main loop
while (!glfwWindowShouldClose(window))
{
@ -582,6 +719,7 @@ int main(int, char**)
frame_begin();
ImGui_ImplGlfwVulkan_Render(g_CommandBuffer[g_FrameIndex]);
frame_end();
frame_present();
}
// Cleanup

4
extra_fonts/README.txt
View File

@ -96,7 +96,9 @@
EMBEDDING FONT IN SOURCE CODE
---------------------------------
Compile and use 'binary_to_compressed_c.cpp' to create a compressed C style array. Then load the font with:
Compile and use 'binary_to_compressed_c.cpp' to create a compressed C style array.
See the documentation in binary_to_compressed_c.cpp for instruction on how to use the tool.
Then load the font with:
ImFont* font = io.Fonts->AddFontFromMemoryCompressedTTF(compressed_data, compressed_data_size, size_pixels, ...);

13
extra_fonts/binary_to_compressed_c.cpp
View File

@ -7,12 +7,17 @@
// Note that even with compression, the output array is likely to be bigger than the binary file..
// Load compressed TTF fonts with ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF()
// Single file application, build with:
// # cl.exe binary_to_compressed_c.cpp
// # gcc binary_to_compressed_c.cpp
// etc.
// Build with, e.g:
// # cl.exe binary_to_compressed_c.cpp
// # gcc binary_to_compressed_c.cpp
// You can also find a precompiled Windows binary in the binary/demo package available from https://github.com/ocornut/imgui
// Usage:
// binary_to_compressed_c.exe [-base85] [-nocompress] <inputfile> <symbolname>
// Usage example:
// # binary_to_compressed_c.exe myfont.ttf MyFont > myfont.cpp
// # binary_to_compressed_c.exe -base85 myfont.ttf MyFont > myfont.cpp
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>

8
imgui.cpp
View File

@ -193,7 +193,8 @@
Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
Also read releases logs https://github.com/ocornut/imgui/releases for more details.
- 2017/05/01 (1.50) - Renamed ImDrawList::PathFill() to ImDrawList::PathFillConvex() for clarity.
- 2017/05/26 (1.50) - Removed ImFontConfig::MergeGlyphCenterV in favor of a more multipurpose ImFontConfig::GlyphOffset.
- 2017/05/01 (1.50) - Renamed ImDrawList::PathFill() (rarely used directly) to ImDrawList::PathFillConvex() for clarity.
- 2016/11/06 (1.50) - BeginChild(const char*) now applies the stack id to the provided label, consistently with other functions as it should always have been. It shouldn't affect you unless (extremely unlikely) you were appending multiple times to a same child from different locations of the stack id. If that's the case, generate an id with GetId() and use it instead of passing string to BeginChild().
- 2016/10/15 (1.50) - avoid 'void* user_data' parameter to io.SetClipboardTextFn/io.GetClipboardTextFn pointers. We pass io.ClipboardUserData to it.
- 2016/09/25 (1.50) - style.WindowTitleAlign is now a ImVec2 (ImGuiAlign enum was removed). set to (0.5f,0.5f) for horizontal+vertical centering, (0.0f,0.0f) for upper-left, etc.
@ -682,11 +683,12 @@
// Clang warnings with -Weverything
#ifdef __clang__
#pragma clang diagnostic ignored "-Wold-style-cast" // warning : use of old-style cast // yes, they are more terse.
#pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
#pragma clang diagnostic ignored "-Wfloat-equal" // warning : comparing floating point with == or != is unsafe // storing and comparing against same constants (typically 0.0f) is ok.
#pragma clang diagnostic ignored "-Wformat-nonliteral" // warning : format string is not a string literal // passing non-literal to vsnformat(). yes, user passing incorrect format strings can crash the code.
#pragma clang diagnostic ignored "-Wexit-time-destructors" // warning : declaration requires an exit-time destructor // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
#pragma clang diagnostic ignored "-Wglobal-constructors" // warning : declaration requires a global destructor // similar to above, not sure what the exact difference it.
#pragma clang diagnostic ignored "-Wsign-conversion" // warning : implicit conversion changes signedness //
#pragma clang diagnostic ignored "-Wformat-pedantic" // warning : format specifies type 'void *' but the argument has type 'xxxx *' // unreasonable, would lead to casting every %p arg to void*. probably enabled by -pedantic.
#pragma clang diagnostic ignored "-Wint-to-void-pointer-cast" // warning : cast to 'void *' from smaller integer type 'int' //
#elif defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
@ -5305,6 +5307,8 @@ static void Scrollbar(ImGuiWindow* window, bool horizontal)
: ImRect(window_rect.Max.x - style.ScrollbarSize, window->Pos.y + border_size, window_rect.Max.x - border_size, window_rect.Max.y - other_scrollbar_size_w - border_size);
if (!horizontal)
bb.Min.y += window->TitleBarHeight() + ((window->Flags & ImGuiWindowFlags_MenuBar) ? window->MenuBarHeight() : 0.0f);
if (bb.GetWidth() <= 0.0f || bb.GetHeight() <= 0.0f)
return;
float window_rounding = (window->Flags & ImGuiWindowFlags_ChildWindow) ? style.ChildWindowRounding : style.WindowRounding;
int window_rounding_corners;

4
imgui.h
View File

@ -1316,9 +1316,9 @@ struct ImFontConfig
int OversampleH, OversampleV; // 3, 1 // Rasterize at higher quality for sub-pixel positioning. We don't use sub-pixel positions on the Y axis.
bool PixelSnapH; // false // Align every glyph to pixel boundary. Useful e.g. if you are merging a non-pixel aligned font with the default font. If enabled, you can set OversampleH/V to 1.
ImVec2 GlyphExtraSpacing; // 0, 0 // Extra spacing (in pixels) between glyphs
ImVec2 GlyphOffset; // 0, 0 // Offset all glyphs from this font input
const ImWchar* GlyphRanges; // // Pointer to a user-provided list of Unicode range (2 value per range, values are inclusive, zero-terminated list). THE ARRAY DATA NEEDS TO PERSIST AS LONG AS THE FONT IS ALIVE.
bool MergeMode; // false // Merge into previous ImFont, so you can combine multiple inputs font into one ImFont (e.g. ASCII font + icons + Japanese glyphs).
bool MergeGlyphCenterV; // false // When merging (multiple ImFontInput for one ImFont), vertically center new glyphs instead of aligning their baseline
bool MergeMode; // false // Merge into previous ImFont, so you can combine multiple inputs font into one ImFont (e.g. ASCII font + icons + Japanese glyphs). You may want to use GlyphOffset.y when merge font of different heights.
// [Internal]
char Name[32]; // Name (strictly for debugging)

8
imgui_demo.cpp
View File

@ -1,9 +1,11 @@
// dear imgui, v1.50 WIP
// (demo code)
// Don't remove this file from your project! It is useful reference code that you can execute.
// You can call ImGui::ShowTestWindow() in your code to learn about various features of ImGui.
// Message to the person tempted to delete this file when integrating ImGui into their code base:
// Do NOT remove this file from your project! It is useful reference code that you and other users will want to refer to.
// Everything in this file will be stripped out by the linker if you don't call ImGui::ShowTestWindow().
// During development, you can call ImGui::ShowTestWindow() in your code to learn about various features of ImGui.
// Removing this file from your project is hindering your access to documentation, likely leading you to poorer usage of the library.
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
@ -1768,7 +1770,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
ImGui::SameLine(); ShowHelpMarker("Note than the default embedded font is NOT meant to be scaled.\n\nFont are currently rendered into bitmaps at a given size at the time of building the atlas. You may oversample them to get some flexibility with scaling. You can also render at multiple sizes and select which one to use at runtime.\n\n(Glimmer of hope: the atlas system should hopefully be rewritten in the future to make scaling more natural and automatic.)");
ImGui::Text("Ascent: %f, Descent: %f, Height: %f", font->Ascent, font->Descent, font->Ascent - font->Descent);
ImGui::Text("Fallback character: '%c' (%d)", font->FallbackChar, font->FallbackChar);
ImGui::Text("Texture surface: %d pixels (approx)", font->MetricsTotalSurface);
ImGui::Text("Texture surface: %d pixels (approx) ~ %dx%d", font->MetricsTotalSurface, (int)sqrtf((float)font->MetricsTotalSurface), (int)sqrtf((float)font->MetricsTotalSurface));
for (int config_i = 0; config_i < font->ConfigDataCount; config_i++)
{
ImFontConfig* cfg = &font->ConfigData[config_i];

13
imgui_draw.cpp
View File

@ -1043,9 +1043,9 @@ ImFontConfig::ImFontConfig()
OversampleV = 1;
PixelSnapH = false;
GlyphExtraSpacing = ImVec2(0.0f, 0.0f);
GlyphOffset = ImVec2(0.0f, 0.0f);
GlyphRanges = NULL;
MergeMode = false;
MergeGlyphCenterV = false;
DstFont = NULL;
memset(Name, 0, sizeof(Name));
}
@ -1426,7 +1426,8 @@ bool ImFontAtlas::Build()
dst_font->MetricsTotalSurface = 0;
}
dst_font->ConfigDataCount++;
float off_y = (cfg.MergeMode && cfg.MergeGlyphCenterV) ? (ascent - dst_font->Ascent) * 0.5f : 0.0f;
float off_x = cfg.GlyphOffset.x;
float off_y = cfg.GlyphOffset.y;
dst_font->FallbackGlyph = NULL; // Always clear fallback so FindGlyph can return NULL. It will be set again in BuildLookupTable()
for (int i = 0; i < tmp.RangesCount; i++)
@ -1449,14 +1450,14 @@ bool ImFontAtlas::Build()
dst_font->Glyphs.resize(dst_font->Glyphs.Size + 1);
ImFont::Glyph& glyph = dst_font->Glyphs.back();
glyph.Codepoint = (ImWchar)codepoint;
glyph.X0 = q.x0; glyph.Y0 = q.y0; glyph.X1 = q.x1; glyph.Y1 = q.y1;
glyph.X0 = q.x0 + off_x; glyph.Y0 = q.y0 + off_y; glyph.X1 = q.x1 + off_x; glyph.Y1 = q.y1 + off_y;
glyph.U0 = q.s0; glyph.V0 = q.t0; glyph.U1 = q.s1; glyph.V1 = q.t1;
glyph.Y0 += (float)(int)(dst_font->Ascent + off_y + 0.5f);
glyph.Y1 += (float)(int)(dst_font->Ascent + off_y + 0.5f);
glyph.Y0 += (float)(int)(dst_font->Ascent + 0.5f);
glyph.Y1 += (float)(int)(dst_font->Ascent + 0.5f);
glyph.XAdvance = (pc.xadvance + cfg.GlyphExtraSpacing.x); // Bake spacing into XAdvance
if (cfg.PixelSnapH)
glyph.XAdvance = (float)(int)(glyph.XAdvance + 0.5f);
dst_font->MetricsTotalSurface += (int)(glyph.X1 - glyph.X0 + 1.99f) * (int)(glyph.Y1 - glyph.Y0 + 1.99f); // +1 to account for average padding, +0.99 to round
dst_font->MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * TexWidth + 1.99f) * (int)((glyph.V1 - glyph.V0) * TexHeight + 1.99f); // +1 to account for average padding, +0.99 to round
}
}
cfg.DstFont->BuildLookupTable();