// ImGui GLFW binding with Vulkan + shaders // 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 // GLFW #define GLFW_INCLUDE_NONE #define GLFW_INCLUDE_VULKAN #include #ifdef _WIN32 #undef APIENTRY #define GLFW_EXPOSE_NATIVE_WIN32 #define GLFW_EXPOSE_NATIVE_WGL #include #endif #include "imgui_impl_glfw_vulkan.h" // GLFW Data static GLFWwindow* g_Window = NULL; static double g_Time = 0.0f; static bool g_MousePressed[3] = { false, false, false }; static float g_MouseWheel = 0.0f; // Vulkan Data static VkAllocationCallbacks* g_Allocator = NULL; static VkPhysicalDevice g_Gpu = VK_NULL_HANDLE; static VkDevice g_Device = VK_NULL_HANDLE; static VkRenderPass g_RenderPass = VK_NULL_HANDLE; static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE; static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE; static void (*g_CheckVkResult)(VkResult err) = NULL; static VkCommandBuffer g_CommandBuffer = VK_NULL_HANDLE; static size_t g_BufferMemoryAlignment = 256; static VkPipelineCreateFlags g_PipelineCreateFlags = 0; static int g_FrameIndex = 0; static VkDescriptorSetLayout g_DescriptorSetLayout = VK_NULL_HANDLE; static VkPipelineLayout g_PipelineLayout = VK_NULL_HANDLE; static VkDescriptorSet g_DescriptorSet = VK_NULL_HANDLE; static VkPipeline g_Pipeline = VK_NULL_HANDLE; static VkSampler g_FontSampler = VK_NULL_HANDLE; static VkDeviceMemory g_FontMemory = VK_NULL_HANDLE; static VkImage g_FontImage = VK_NULL_HANDLE; static VkImageView g_FontView = VK_NULL_HANDLE; static VkDeviceMemory g_VertexBufferMemory[IMGUI_VK_QUEUED_FRAMES] = {}; static VkDeviceMemory g_IndexBufferMemory[IMGUI_VK_QUEUED_FRAMES] = {}; static size_t g_VertexBufferSize[IMGUI_VK_QUEUED_FRAMES] = {}; static size_t g_IndexBufferSize[IMGUI_VK_QUEUED_FRAMES] = {}; static VkBuffer g_VertexBuffer[IMGUI_VK_QUEUED_FRAMES] = {}; static VkBuffer g_IndexBuffer[IMGUI_VK_QUEUED_FRAMES] = {}; static VkDeviceMemory g_UploadBufferMemory = VK_NULL_HANDLE; static VkBuffer g_UploadBuffer = VK_NULL_HANDLE; static unsigned char __glsl_shader_vert_spv[] = { 0x03, 0x02, 0x23, 0x07, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x08, 0x00, 0x6c, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x11, 0x00, 0x02, 0x00, 0x20, 0x00, 0x00, 0x00, 0x11, 0x00, 0x02, 0x00, 0x21, 0x00, 0x00, 0x00, 0x0b, 0x00, 0x06, 0x00, 0x01, 0x00, 0x00, 0x00, 0x47, 0x4c, 0x53, 0x4c, 0x2e, 0x73, 0x74, 0x64, 0x2e, 0x34, 0x35, 0x30, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x16, 0x00, 0x00, 0x6d, 0x61, 0x69, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x47, 0x11, 0x00, 0x00, 0x41, 0x14, 0x00, 0x00, 0x6a, 0x16, 0x00, 0x00, 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0x00, 0x3d, 0x00, 0x04, 0x00, 0x13, 0x00, 0x00, 0x00, 0x02, 0x4e, 0x00, 0x00, 0xc2, 0x43, 0x00, 0x00, 0x57, 0x00, 0x05, 0x00, 0x1d, 0x00, 0x00, 0x00, 0xb9, 0x46, 0x00, 0x00, 0xc0, 0x36, 0x00, 0x00, 0x02, 0x4e, 0x00, 0x00, 0x85, 0x00, 0x05, 0x00, 0x1d, 0x00, 0x00, 0x00, 0xe4, 0x23, 0x00, 0x00, 0x0b, 0x40, 0x00, 0x00, 0xb9, 0x46, 0x00, 0x00, 0x3e, 0x00, 0x03, 0x00, 0x7a, 0x0c, 0x00, 0x00, 0xe4, 0x23, 0x00, 0x00, 0xfd, 0x00, 0x01, 0x00, 0x38, 0x00, 0x01, 0x00 }; static unsigned int __glsl_shader_frag_spv_len = 660; static uint32_t ImGui_ImplGlfwVulkan_MemoryType(VkMemoryPropertyFlags properties, uint32_t type_bits) { VkPhysicalDeviceMemoryProperties prop; vkGetPhysicalDeviceMemoryProperties(g_Gpu, &prop); for(uint32_t i=0; i < prop.memoryTypeCount; ++i) if((prop.memoryTypes[i].propertyFlags & properties) == properties && type_bits & (1<TotalVtxCount * sizeof(ImDrawVert); if(!g_VertexBuffer[g_FrameIndex] || g_VertexBufferSize[g_FrameIndex] < vertex_size){ if(g_VertexBuffer[g_FrameIndex]) vkDestroyBuffer(g_Device, g_VertexBuffer[g_FrameIndex], g_Allocator); if(g_VertexBufferMemory[g_FrameIndex]) vkFreeMemory(g_Device, g_VertexBufferMemory[g_FrameIndex], g_Allocator); size_t vertex_buffer_size = ((vertex_size-1)/g_BufferMemoryAlignment+1)*g_BufferMemoryAlignment; VkBufferCreateInfo buffer_info = {}; buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; buffer_info.size = vertex_buffer_size; 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); 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); err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_VertexBufferMemory[g_FrameIndex]); ImGui_ImplGlfwVulkan_VkResult(err); err = vkBindBufferMemory(g_Device, g_VertexBuffer[g_FrameIndex], g_VertexBufferMemory[g_FrameIndex], 0); ImGui_ImplGlfwVulkan_VkResult(err); g_VertexBufferSize[g_FrameIndex] = vertex_buffer_size; } // Create the Index Buffer: size_t index_size = draw_data->TotalIdxCount * sizeof(ImDrawIdx); if(!g_IndexBuffer[g_FrameIndex] || g_IndexBufferSize[g_FrameIndex] < index_size){ if(g_IndexBuffer[g_FrameIndex]) vkDestroyBuffer(g_Device, g_IndexBuffer[g_FrameIndex], g_Allocator); if(g_IndexBufferMemory[g_FrameIndex]) vkFreeMemory(g_Device, g_IndexBufferMemory[g_FrameIndex], g_Allocator); size_t index_buffer_size = ((index_size-1)/g_BufferMemoryAlignment+1)*g_BufferMemoryAlignment; VkBufferCreateInfo buffer_info = {}; buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; buffer_info.size = index_buffer_size; 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); 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); err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_IndexBufferMemory[g_FrameIndex]); ImGui_ImplGlfwVulkan_VkResult(err); err = vkBindBufferMemory(g_Device, g_IndexBuffer[g_FrameIndex], g_IndexBufferMemory[g_FrameIndex], 0); ImGui_ImplGlfwVulkan_VkResult(err); g_IndexBufferSize[g_FrameIndex] = index_buffer_size; } // Upload Vertex and index Data: { ImDrawVert* vtx_dst; ImDrawIdx* idx_dst; err = vkMapMemory(g_Device, g_VertexBufferMemory[g_FrameIndex], 0, vertex_size, 0, reinterpret_cast(&vtx_dst)); ImGui_ImplGlfwVulkan_VkResult(err); err = vkMapMemory(g_Device, g_IndexBufferMemory[g_FrameIndex], 0, index_size, 0, reinterpret_cast(&idx_dst)); ImGui_ImplGlfwVulkan_VkResult(err); for(int n = 0; n < draw_data->CmdListsCount; n++){ const ImDrawList* cmd_list = draw_data->CmdLists[n]; memcpy(vtx_dst, &cmd_list->VtxBuffer[0], cmd_list->VtxBuffer.size() * sizeof(ImDrawVert)); memcpy(idx_dst, &cmd_list->IdxBuffer[0], cmd_list->IdxBuffer.size() * sizeof(ImDrawIdx)); vtx_dst += cmd_list->VtxBuffer.size(); idx_dst += cmd_list->IdxBuffer.size(); } 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[1].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; range[1].memory = g_IndexBufferMemory[g_FrameIndex]; range[1].size = index_size; err = vkFlushMappedMemoryRanges(g_Device, 2, range); ImGui_ImplGlfwVulkan_VkResult(err); vkUnmapMemory(g_Device, g_VertexBufferMemory[g_FrameIndex]); vkUnmapMemory(g_Device, g_IndexBufferMemory[g_FrameIndex]); } // Bind pipeline and descriptor sets: { vkCmdBindPipeline(g_CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, g_Pipeline); VkDescriptorSet desc_set[1] = {g_DescriptorSet}; vkCmdBindDescriptorSets(g_CommandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, g_PipelineLayout, 0, 1, desc_set, 0, NULL); } // Bind Vertex And Index Buffer: { VkBuffer vertex_buffers[1] = {g_VertexBuffer[g_FrameIndex]}; VkDeviceSize vertex_offset[1] = {0}; vkCmdBindVertexBuffers(g_CommandBuffer, 0, 1, vertex_buffers, vertex_offset); vkCmdBindIndexBuffer(g_CommandBuffer, g_IndexBuffer[g_FrameIndex], 0, VK_INDEX_TYPE_UINT16); } // Setup viewport: { VkViewport viewport; viewport.x = 0; viewport.y = 0; viewport.width = ImGui::GetIO().DisplaySize.x; viewport.height = ImGui::GetIO().DisplaySize.y; viewport.minDepth = 0.0f; viewport.maxDepth = 1.0f; vkCmdSetViewport(g_CommandBuffer, 0, 1, &viewport); } // Setup scale and translation: { float scale[2]; scale[0] = 2.0f/io.DisplaySize.x; scale[1] = 2.0f/io.DisplaySize.y; float translate[2]; translate[0] = -1.0f; translate[1] = -1.0f; vkCmdPushConstants(g_CommandBuffer, g_PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 0, sizeof(float) * 2, scale); vkCmdPushConstants(g_CommandBuffer, g_PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 2, sizeof(float) * 2, translate); } // Render the command lists: int vtx_offset = 0; int idx_offset = 0; for(int n = 0; n < draw_data->CmdListsCount; n++){ const ImDrawList* cmd_list = draw_data->CmdLists[n]; for(int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.size(); cmd_i++){ const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i]; if(pcmd->UserCallback){ pcmd->UserCallback(cmd_list, pcmd); } else{ VkRect2D scissor; scissor.offset.x = static_cast(pcmd->ClipRect.x); scissor.offset.y = static_cast(pcmd->ClipRect.y); scissor.extent.width = static_cast(pcmd->ClipRect.z - pcmd->ClipRect.x); scissor.extent.height = static_cast(pcmd->ClipRect.w - pcmd->ClipRect.y + 1); // TODO: + 1?????? vkCmdSetScissor(g_CommandBuffer, 0, 1, &scissor); vkCmdDrawIndexed(g_CommandBuffer, pcmd->ElemCount, 1, idx_offset, vtx_offset, 0); } idx_offset += pcmd->ElemCount; } vtx_offset += cmd_list->VtxBuffer.size(); } } static const char* ImGui_ImplGlfwVulkan_GetClipboardText() { return glfwGetClipboardString(g_Window); } static void ImGui_ImplGlfwVulkan_SetClipboardText(const char* text) { glfwSetClipboardString(g_Window, text); } void ImGui_ImplGlfwVulkan_MouseButtonCallback(GLFWwindow*, int button, int action, int /*mods*/) { if (action == GLFW_PRESS && button >= 0 && button < 3) g_MousePressed[button] = true; } void ImGui_ImplGlfwVulkan_ScrollCallback(GLFWwindow*, double /*xoffset*/, double yoffset) { g_MouseWheel += (float)yoffset; // Use fractional mouse wheel, 1.0 unit 5 lines. } 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]; } 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) { ImGuiIO& io = ImGui::GetIO(); unsigned char* pixels; int width, height; io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); size_t upload_size = width*height*4*sizeof(char); VkResult err; // Create the Image: { VkImageCreateInfo info = {}; info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO; info.imageType = VK_IMAGE_TYPE_2D; info.format = VK_FORMAT_R8G8B8A8_UNORM; info.extent.width = width; info.extent.height = height; info.extent.depth = 1; info.mipLevels = 1; info.arrayLayers = 1; info.samples = VK_SAMPLE_COUNT_1_BIT; info.tiling = VK_IMAGE_TILING_OPTIMAL; info.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT; 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); 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); err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_FontMemory); ImGui_ImplGlfwVulkan_VkResult(err); err = vkBindImageMemory(g_Device, g_FontImage, g_FontMemory, 0); ImGui_ImplGlfwVulkan_VkResult(err); } // Create the Image View: { VkResult err; VkImageViewCreateInfo info = {}; info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO; info.image = g_FontImage; info.viewType = VK_IMAGE_VIEW_TYPE_2D; info.format = VK_FORMAT_R8G8B8A8_UNORM; info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; info.subresourceRange.levelCount = 1; info.subresourceRange.layerCount = 1; err = vkCreateImageView(g_Device, &info, g_Allocator, &g_FontView); ImGui_ImplGlfwVulkan_VkResult(err); } // Update the Descriptor Set: { VkDescriptorImageInfo desc_image[1] = {}; desc_image[0].sampler = g_FontSampler; desc_image[0].imageView = g_FontView; desc_image[0].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; VkWriteDescriptorSet write_desc[1] = {}; write_desc[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; write_desc[0].dstSet = g_DescriptorSet; write_desc[0].descriptorCount = 1; write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; write_desc[0].pImageInfo = desc_image; vkUpdateDescriptorSets(g_Device, 1, write_desc, 0, NULL); } // Create the Upload Buffer: { VkBufferCreateInfo buffer_info = {}; buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; buffer_info.size = upload_size; 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); 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); err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_UploadBufferMemory); ImGui_ImplGlfwVulkan_VkResult(err); err = vkBindBufferMemory(g_Device, g_UploadBuffer, g_UploadBufferMemory, 0); ImGui_ImplGlfwVulkan_VkResult(err); } // Upload to Buffer: { char *map; err = vkMapMemory(g_Device, g_UploadBufferMemory, 0, upload_size, 0, reinterpret_cast(&map)); ImGui_ImplGlfwVulkan_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); vkUnmapMemory(g_Device, g_UploadBufferMemory); } // Copy to Image: { VkImageMemoryBarrier copy_barrier[1] = {}; copy_barrier[0].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER; copy_barrier[0].dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; copy_barrier[0].oldLayout = VK_IMAGE_LAYOUT_UNDEFINED; copy_barrier[0].newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; copy_barrier[0].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; copy_barrier[0].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; copy_barrier[0].image = g_FontImage; copy_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; copy_barrier[0].subresourceRange.levelCount = 1; copy_barrier[0].subresourceRange.layerCount = 1; vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_HOST_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, NULL, 0, NULL, 1, copy_barrier); VkBufferImageCopy region = {}; region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; region.imageSubresource.layerCount = 1; region.imageExtent.width = width; region.imageExtent.height = height; vkCmdCopyBufferToImage(command_buffer, g_UploadBuffer, g_FontImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion); VkImageMemoryBarrier use_barrier[1] = {}; use_barrier[0].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER; use_barrier[0].srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; use_barrier[0].dstAccessMask = VK_ACCESS_SHADER_READ_BIT; use_barrier[0].oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; use_barrier[0].newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; use_barrier[0].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; use_barrier[0].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; use_barrier[0].image = g_FontImage; use_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; use_barrier[0].subresourceRange.levelCount = 1; use_barrier[0].subresourceRange.layerCount = 1; vkCmdPipelineBarrier(command_buffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, NULL, 0, NULL, 1, use_barrier); } io.Fonts->TexID = (void *)(intptr_t)g_FontImage; io.Fonts->ClearInputData(); io.Fonts->ClearTexData(); return true; } bool ImGui_ImplGlfwVulkan_CreateDeviceObjects() { VkResult err; VkShaderModule vert_module; VkShaderModule frag_module; // Create The Shader Modules: { VkShaderModuleCreateInfo vert_info = {}; vert_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; vert_info.codeSize = __glsl_shader_vert_spv_len; vert_info.pCode = (uint32_t*)__glsl_shader_vert_spv; err = vkCreateShaderModule(g_Device, &vert_info, g_Allocator, &vert_module); ImGui_ImplGlfwVulkan_VkResult(err); VkShaderModuleCreateInfo frag_info = {}; frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; frag_info.codeSize = __glsl_shader_frag_spv_len; frag_info.pCode = (uint32_t*)__glsl_shader_frag_spv; err = vkCreateShaderModule(g_Device, &frag_info, g_Allocator, &frag_module); ImGui_ImplGlfwVulkan_VkResult(err); } if(!g_FontSampler){ VkSamplerCreateInfo info = {}; info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO; info.magFilter = VK_FILTER_LINEAR; info.minFilter = VK_FILTER_LINEAR; info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR; info.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT; info.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT; info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT; info.minLod = -1000; info.maxLod = 1000; err = vkCreateSampler(g_Device, &info, g_Allocator, &g_FontSampler); ImGui_ImplGlfwVulkan_VkResult(err); } if(!g_DescriptorSetLayout){ VkSampler sampler[1] = {g_FontSampler}; VkDescriptorSetLayoutBinding binding[1] = {}; binding[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; binding[0].descriptorCount = 1; binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT; binding[0].pImmutableSamplers = sampler; VkDescriptorSetLayoutCreateInfo info = {}; info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO; info.bindingCount = 1; info.pBindings = binding; err = vkCreateDescriptorSetLayout(g_Device, &info, g_Allocator, &g_DescriptorSetLayout); ImGui_ImplGlfwVulkan_VkResult(err); } // Create Descriptor Set: { VkDescriptorSetAllocateInfo alloc_info = {}; alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO; alloc_info.descriptorPool = g_DescriptorPool; alloc_info.descriptorSetCount = 1; alloc_info.pSetLayouts = &g_DescriptorSetLayout; err = vkAllocateDescriptorSets(g_Device, &alloc_info, &g_DescriptorSet); ImGui_ImplGlfwVulkan_VkResult(err); } if(!g_PipelineLayout){ VkPushConstantRange push_constants[2] = {}; push_constants[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT; push_constants[0].offset = sizeof(float) * 0; push_constants[0].size = sizeof(float) * 2; push_constants[1].stageFlags = VK_SHADER_STAGE_VERTEX_BIT; push_constants[1].offset = sizeof(float) * 2; push_constants[1].size = sizeof(float) * 2; VkDescriptorSetLayout set_layout[1] = {g_DescriptorSetLayout}; VkPipelineLayoutCreateInfo layout_info = {}; layout_info.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO; layout_info.setLayoutCount = 1; layout_info.pSetLayouts = set_layout; layout_info.pushConstantRangeCount = 2; layout_info.pPushConstantRanges = push_constants; err = vkCreatePipelineLayout(g_Device, &layout_info, g_Allocator, &g_PipelineLayout); ImGui_ImplGlfwVulkan_VkResult(err); } VkPipelineShaderStageCreateInfo stage[2] = {}; stage[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; stage[0].stage = VK_SHADER_STAGE_VERTEX_BIT; stage[0].module = vert_module; stage[0].pName = "main"; stage[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; stage[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT; stage[1].module = frag_module; stage[1].pName = "main"; VkVertexInputBindingDescription binding_desc[1] = {}; binding_desc[0].stride = sizeof(ImDrawVert); binding_desc[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX; VkVertexInputAttributeDescription attribute_desc[3] = {}; attribute_desc[0].location = 0; attribute_desc[0].binding = binding_desc[0].binding; attribute_desc[0].format = VK_FORMAT_R32G32_SFLOAT; attribute_desc[0].offset = (size_t)(&((ImDrawVert*)0)->pos); attribute_desc[1].location = 1; attribute_desc[1].binding = binding_desc[0].binding; attribute_desc[1].format = VK_FORMAT_R32G32_SFLOAT; attribute_desc[1].offset = (size_t)(&((ImDrawVert*)0)->uv); attribute_desc[2].location = 2; attribute_desc[2].binding = binding_desc[0].binding; attribute_desc[2].format = VK_FORMAT_R8G8B8A8_UNORM; attribute_desc[2].offset = (size_t)(&((ImDrawVert*)0)->col); VkPipelineVertexInputStateCreateInfo vertex_info = {}; vertex_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO; vertex_info.vertexBindingDescriptionCount = 1; vertex_info.pVertexBindingDescriptions = binding_desc; vertex_info.vertexAttributeDescriptionCount = 3; vertex_info.pVertexAttributeDescriptions = attribute_desc; VkPipelineInputAssemblyStateCreateInfo ia_info = {}; ia_info.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO; ia_info.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST; VkPipelineViewportStateCreateInfo viewport_info = {}; viewport_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO; viewport_info.viewportCount = 1; viewport_info.scissorCount = 1; VkPipelineRasterizationStateCreateInfo raster_info = {}; raster_info.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO; raster_info.polygonMode = VK_POLYGON_MODE_FILL; raster_info.cullMode = VK_CULL_MODE_NONE; raster_info.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE; VkPipelineMultisampleStateCreateInfo ms_info = {}; ms_info.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO; ms_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT; VkPipelineColorBlendAttachmentState color_attachment[1] = {}; color_attachment[0].blendEnable = VK_TRUE; color_attachment[0].srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; color_attachment[0].dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; color_attachment[0].colorBlendOp = VK_BLEND_OP_ADD; color_attachment[0].srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; color_attachment[0].dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO; color_attachment[0].alphaBlendOp = VK_BLEND_OP_ADD; color_attachment[0].colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT; VkPipelineColorBlendStateCreateInfo blend_info = {}; blend_info.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO; blend_info.attachmentCount = 1; blend_info.pAttachments = color_attachment; VkDynamicState dynamic_states[2] = {VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR}; VkPipelineDynamicStateCreateInfo dynamic_state = {}; dynamic_state.dynamicStateCount = 2; dynamic_state.pDynamicStates = dynamic_states; VkGraphicsPipelineCreateInfo info = {}; info.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO; info.flags = g_PipelineCreateFlags; info.stageCount = 2; info.pStages = stage; info.pVertexInputState = &vertex_info; info.pInputAssemblyState = &ia_info; info.pViewportState = &viewport_info; info.pRasterizationState = &raster_info; info.pMultisampleState = &ms_info; info.pColorBlendState = &blend_info; info.pDynamicState = &dynamic_state; info.layout = g_PipelineLayout; info.renderPass = g_RenderPass; err = vkCreateGraphicsPipelines(g_Device, g_PipelineCache, 1, &info, g_Allocator, &g_Pipeline); ImGui_ImplGlfwVulkan_VkResult(err); vkDestroyShaderModule(g_Device, vert_module, g_Allocator); vkDestroyShaderModule(g_Device, frag_module, g_Allocator); return true; } void ImGui_ImplGlfwVulkan_InvalidateFontUploadObjects() { if(g_UploadBuffer){ vkDestroyBuffer(g_Device, g_UploadBuffer, g_Allocator); g_UploadBuffer = VK_NULL_HANDLE; } if(g_UploadBufferMemory){ vkFreeMemory(g_Device, g_UploadBufferMemory, g_Allocator); g_UploadBufferMemory = VK_NULL_HANDLE; } } void ImGui_ImplGlfwVulkan_InvalidateDeviceObjects() { ImGui_ImplGlfwVulkan_InvalidateFontUploadObjects(); for(int i=0; iallocator; g_Gpu = init_data->gpu; g_Device = init_data->device; g_RenderPass = init_data->render_pass; g_PipelineCache = init_data->pipeline_cache; 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_Delete] = GLFW_KEY_DELETE; io.KeyMap[ImGuiKey_Backspace] = GLFW_KEY_BACKSPACE; 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.RenderDrawListsFn = ImGui_ImplGlfwVulkan_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer. io.SetClipboardTextFn = ImGui_ImplGlfwVulkan_SetClipboardText; io.GetClipboardTextFn = ImGui_ImplGlfwVulkan_GetClipboardText; #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(); return true; } void ImGui_ImplGlfwVulkan_Shutdown() { ImGui_ImplGlfwVulkan_InvalidateDeviceObjects(); ImGui::Shutdown(); } void ImGui_ImplGlfwVulkan_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); // Mouse position in screen coordinates (set to -1,-1 if no mouse / on another screen, etc.) } else { io.MousePos = ImVec2(-1,-1); } for (int i = 0; i < 3; i++) { io.MouseDown[i] = g_MousePressed[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_MousePressed[i] = false; } io.MouseWheel = g_MouseWheel; g_MouseWheel = 0.0f; // 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 ImGui::NewFrame(); } void ImGui_ImplGlfwVulkan_Render(VkCommandBuffer command_buffer) { g_CommandBuffer = command_buffer; ImGui::Render(); g_CommandBuffer = VK_NULL_HANDLE; g_FrameIndex = (g_FrameIndex+1)%IMGUI_VK_QUEUED_FRAMES; }