mirror of
https://github.com/kamb205/KB-RPCS3.git
synced 2026-10-17 18:02:25 +02:00
515 lines
22 KiB
C++
515 lines
22 KiB
C++
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/*
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* UI overlay class using ImGui
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*
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* Copyright (C) 2017-2026 by Sascha Willems - www.saschawillems.de
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*
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* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
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*/
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#include "VulkanUIOverlay.h"
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namespace vks
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{
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UIOverlay::UIOverlay()
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{
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#if defined(__ANDROID__)
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if (vks::android::screenDensity >= ACONFIGURATION_DENSITY_XXHIGH) {
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scale = 3.5f;
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}
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else if (vks::android::screenDensity >= ACONFIGURATION_DENSITY_XHIGH) {
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scale = 2.5f;
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}
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else if (vks::android::screenDensity >= ACONFIGURATION_DENSITY_HIGH) {
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scale = 2.0f;
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};
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#endif
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#if defined (__OHOS__)
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if (vks::OHOS::screenDensity >= 480) {
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scale = 3.5f;
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} else if (vks::OHOS::screenDensity >= 320) {
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scale = 2.5f;
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} else if (vks::OHOS::screenDensity >= 240) {
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scale = 2.0f;
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}
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#endif
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// Init ImGui
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ImGui::CreateContext();
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// Color scheme
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ImGuiStyle& style = ImGui::GetStyle();
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style.Colors[ImGuiCol_TitleBg] = ImVec4(1.0f, 0.0f, 0.0f, 1.0f);
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style.Colors[ImGuiCol_TitleBgActive] = ImVec4(1.0f, 0.0f, 0.0f, 1.0f);
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style.Colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.0f, 0.0f, 0.0f, 0.1f);
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style.Colors[ImGuiCol_MenuBarBg] = ImVec4(1.0f, 0.0f, 0.0f, 0.4f);
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style.Colors[ImGuiCol_Header] = ImVec4(0.8f, 0.0f, 0.0f, 0.4f);
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style.Colors[ImGuiCol_HeaderActive] = ImVec4(1.0f, 0.0f, 0.0f, 0.4f);
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style.Colors[ImGuiCol_HeaderHovered] = ImVec4(1.0f, 0.0f, 0.0f, 0.4f);
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style.Colors[ImGuiCol_FrameBg] = ImVec4(0.0f, 0.0f, 0.0f, 0.8f);
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style.Colors[ImGuiCol_CheckMark] = ImVec4(1.0f, 0.0f, 0.0f, 0.8f);
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style.Colors[ImGuiCol_SliderGrab] = ImVec4(1.0f, 0.0f, 0.0f, 0.4f);
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style.Colors[ImGuiCol_SliderGrabActive] = ImVec4(1.0f, 0.0f, 0.0f, 0.8f);
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style.Colors[ImGuiCol_FrameBgHovered] = ImVec4(1.0f, 1.0f, 1.0f, 0.1f);
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style.Colors[ImGuiCol_FrameBgActive] = ImVec4(1.0f, 1.0f, 1.0f, 0.2f);
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style.Colors[ImGuiCol_Button] = ImVec4(1.0f, 0.0f, 0.0f, 0.4f);
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style.Colors[ImGuiCol_ButtonHovered] = ImVec4(1.0f, 0.0f, 0.0f, 0.6f);
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style.Colors[ImGuiCol_ButtonActive] = ImVec4(1.0f, 0.0f, 0.0f, 0.8f);
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#if defined(VK_EXAMPLE_PS5)
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// PS5: in the title's theme, when it has the UI module
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ps5StyleOverlay(style);
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#endif
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// Dimensions
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ImGuiIO& io = ImGui::GetIO();
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io.FontGlobalScale = scale;
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}
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UIOverlay::~UIOverlay() {
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if (ImGui::GetCurrentContext()) {
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ImGui::DestroyContext();
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}
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}
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/** Prepare all vulkan resources required to render the UI overlay */
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void UIOverlay::prepare()
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{
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assert(maxConcurrentFrames > 0);
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ImGuiIO& io = ImGui::GetIO();
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// Create font texture
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unsigned char* fontData;
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int texWidth, texHeight;
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#if defined(__ANDROID__)
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float scale = (float)vks::android::screenDensity / (float)ACONFIGURATION_DENSITY_MEDIUM;
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AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, "Roboto-Medium.ttf", AASSET_MODE_STREAMING);
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if (asset) {
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size_t size = AAsset_getLength(asset);
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assert(size > 0);
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char *fontAsset = new char[size];
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AAsset_read(asset, fontAsset, size);
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AAsset_close(asset);
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io.Fonts->AddFontFromMemoryTTF(fontAsset, size, 14.0f * scale);
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delete[] fontAsset;
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}
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#elif defined (__OHOS__)
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float scale = (float)vks::OHOS::screenDensity / 160.0f;
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NativeResourceManager* resourceMgr = ResourceManager::getInstance().getNativeResourceManager();
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if (!resourceMgr) {
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std::string msg = "ResourceManager not initialized. Call ResourceManager::getInstance().initialize() first.";
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// vks::tools::exitFatal(msg, -1);
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}
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RawFile *rawfile = OH_ResourceManager_OpenRawFile(resourceMgr, "Roboto-Medium.ttf");
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if (rawfile) {
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size_t size = OH_ResourceManager_GetRawFileSize(rawfile);
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assert(size > 0);
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char *fontAsset = new char[size];
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OH_ResourceManager_ReadRawFile(rawfile, fontAsset, size);
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OH_ResourceManager_CloseRawFile(rawfile);
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io.Fonts->AddFontFromMemoryTTF(fontAsset, size, 14.0f * scale);
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delete[] fontAsset;
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}
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#else
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std::string filename = getAssetPath() + "Roboto-Medium.ttf";
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float fontSize = 16.0f;
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#if defined(VK_EXAMPLE_PS5)
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// PS5: the theme's typeface, when it has one
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ps5OverlayFont(filename, fontSize);
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#endif
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io.Fonts->AddFontFromFileTTF(filename.c_str(), fontSize * scale);
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#endif
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io.Fonts->GetTexDataAsRGBA32(&fontData, &texWidth, &texHeight);
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VkDeviceSize uploadSize = texWidth*texHeight * 4 * sizeof(char);
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// Set ImGui style scale factor to handle retina and other HiDPI displays (same as font scaling above)
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ImGuiStyle& style = ImGui::GetStyle();
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style.ScaleAllSizes(scale);
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// Create target image for copy
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VkImageCreateInfo imageInfo{
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.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
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.imageType = VK_IMAGE_TYPE_2D,
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.format = VK_FORMAT_R8G8B8A8_UNORM,
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.extent = {.width = (uint32_t)texWidth, .height = (uint32_t)texHeight, .depth = 1 },
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.mipLevels = 1,
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.arrayLayers = 1,
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.samples = VK_SAMPLE_COUNT_1_BIT,
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.tiling = VK_IMAGE_TILING_OPTIMAL,
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.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT,
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.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
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.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED
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};
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VK_CHECK_RESULT(vkCreateImage(device->logicalDevice, &imageInfo, nullptr, &fontImage));
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VkMemoryRequirements memReqs;
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vkGetImageMemoryRequirements(device->logicalDevice, fontImage, &memReqs);
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VkMemoryAllocateInfo memAllocInfo{
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.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
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.allocationSize = memReqs.size,
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.memoryTypeIndex = device->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT)
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};
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VK_CHECK_RESULT(vkAllocateMemory(device->logicalDevice, &memAllocInfo, nullptr, &fontMemory));
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VK_CHECK_RESULT(vkBindImageMemory(device->logicalDevice, fontImage, fontMemory, 0));
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// Image view
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VkImageViewCreateInfo viewInfo{
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.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
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.image = fontImage,
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.viewType = VK_IMAGE_VIEW_TYPE_2D,
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.format = VK_FORMAT_R8G8B8A8_UNORM,
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.subresourceRange = {.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, .levelCount = 1, .layerCount = 1 }
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};
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VK_CHECK_RESULT(vkCreateImageView(device->logicalDevice, &viewInfo, nullptr, &fontView));
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// Staging buffers for font data upload
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vks::Buffer stagingBuffer;
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VK_CHECK_RESULT(device->createBuffer(VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, &stagingBuffer, uploadSize));
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stagingBuffer.map();
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memcpy(stagingBuffer.mapped, fontData, uploadSize);
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// Copy buffer data to font image
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VkCommandBuffer copyCmd = device->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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// Prepare for transfer
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vks::tools::setImageLayout(
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copyCmd,
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fontImage,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_UNDEFINED,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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VK_PIPELINE_STAGE_HOST_BIT,
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VK_PIPELINE_STAGE_TRANSFER_BIT);
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// Copy
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VkBufferImageCopy bufferCopyRegion{
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.imageSubresource = {.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, .layerCount = 1 },
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.imageExtent = {.width = (uint32_t)texWidth, .height = (uint32_t)texHeight, .depth = 1 }
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};
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vkCmdCopyBufferToImage(copyCmd, stagingBuffer.buffer, fontImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &bufferCopyRegion);
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// Prepare for shader read
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vks::tools::setImageLayout(
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copyCmd,
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fontImage,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
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VK_PIPELINE_STAGE_TRANSFER_BIT,
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VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT);
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device->flushCommandBuffer(copyCmd, queue, true);
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stagingBuffer.destroy();
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// Font texture Sampler
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VkSamplerCreateInfo samplerInfo{
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.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,
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.magFilter = VK_FILTER_LINEAR,
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.minFilter = VK_FILTER_LINEAR,
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.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR,
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.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
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.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
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.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
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.maxAnisotropy = 1.0f,
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.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE,
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};
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VK_CHECK_RESULT(vkCreateSampler(device->logicalDevice, &samplerInfo, nullptr, &sampler));
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// Descriptor pool
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VkDescriptorPoolSize poolSize{ .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .descriptorCount = 1 };
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VkDescriptorPoolCreateInfo descriptorPoolInfo{ .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO, .maxSets = 2, .poolSizeCount = 1, .pPoolSizes = &poolSize };
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VK_CHECK_RESULT(vkCreateDescriptorPool(device->logicalDevice, &descriptorPoolInfo, nullptr, &descriptorPool));
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// Descriptor set layout
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VkDescriptorSetLayoutBinding setLayoutBinding = vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 0);
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VkDescriptorSetLayoutCreateInfo descriptorLayout{ .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO, .bindingCount = 1, .pBindings = &setLayoutBinding };
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VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device->logicalDevice, &descriptorLayout, nullptr, &descriptorSetLayout));
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// Descriptor set
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VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayout, 1);
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VK_CHECK_RESULT(vkAllocateDescriptorSets(device->logicalDevice, &allocInfo, &descriptorSet));
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VkDescriptorImageInfo fontDescriptor{ .sampler = sampler, .imageView = fontView, .imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL };
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VkWriteDescriptorSet writeDescriptorSets = vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 0, &fontDescriptor);
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vkUpdateDescriptorSets(device->logicalDevice, 1, &writeDescriptorSets, 0, nullptr);
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// Buffers per max. frames-in-flight
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buffers.resize(maxConcurrentFrames);
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// Pipeline layout
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// Push constants for UI rendering parameters
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VkPushConstantRange pushConstantRange{ .stageFlags = VK_SHADER_STAGE_VERTEX_BIT, .size = sizeof(PushConstBlock) };
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VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo{
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.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
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.setLayoutCount = 1,
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.pSetLayouts = &descriptorSetLayout,
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.pushConstantRangeCount = 1,
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.pPushConstantRanges = &pushConstantRange
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};
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VK_CHECK_RESULT(vkCreatePipelineLayout(device->logicalDevice, &pipelineLayoutCreateInfo, nullptr, &pipelineLayout));
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// Setup graphics pipeline for UI rendering
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VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
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VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_COUNTER_CLOCKWISE);
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// Enable blending
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VkPipelineColorBlendAttachmentState blendAttachmentState{
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.blendEnable = VK_TRUE,
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.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA,
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.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
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.colorBlendOp = VK_BLEND_OP_ADD,
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.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
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.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO,
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.alphaBlendOp = VK_BLEND_OP_ADD,
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.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT
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};
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// Vertex bindings an attributes based on ImGui vertex definition
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std::vector<VkVertexInputBindingDescription> vertexInputBindings = {
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{ .binding = 0, .stride = sizeof(ImDrawVert), .inputRate = VK_VERTEX_INPUT_RATE_VERTEX }
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};
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std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
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{ .location = 0, .binding = 0, .format = VK_FORMAT_R32G32_SFLOAT, .offset = offsetof(ImDrawVert, pos) },
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{ .location = 1, .binding = 0, .format = VK_FORMAT_R32G32_SFLOAT, .offset = offsetof(ImDrawVert, uv) },
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{ .location = 2, .binding = 0, .format = VK_FORMAT_R8G8B8A8_UNORM, .offset = offsetof(ImDrawVert, col) },
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};
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VkPipelineVertexInputStateCreateInfo vertexInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
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vertexInputState.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
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vertexInputState.pVertexBindingDescriptions = vertexInputBindings.data();
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vertexInputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
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vertexInputState.pVertexAttributeDescriptions = vertexInputAttributes.data();
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VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
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VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_FALSE, VK_FALSE, VK_COMPARE_OP_ALWAYS);
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VkPipelineViewportStateCreateInfo viewportState = vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
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VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(rasterizationSamples);
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std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
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VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
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VkGraphicsPipelineCreateInfo pipelineCreateInfo{
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.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
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.stageCount = static_cast<uint32_t>(shaders.size()),
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.pStages = shaders.data(),
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.pVertexInputState = &vertexInputState,
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.pInputAssemblyState = &inputAssemblyState,
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.pViewportState = &viewportState,
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.pRasterizationState = &rasterizationState,
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.pMultisampleState = &multisampleState,
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.pDepthStencilState = &depthStencilState,
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.pColorBlendState = &colorBlendState,
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.pDynamicState = &dynamicState,
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.layout = pipelineLayout,
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.renderPass = renderPass,
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.subpass = subpass,
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};
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#if defined(VK_KHR_dynamic_rendering)
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// If we are using dynamic rendering (renderPass is null), we must define color, depth and stencil attachments at pipeline create time
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VkPipelineRenderingCreateInfo pipelineRenderingCreateInfo{};
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if (renderPass == VK_NULL_HANDLE) {
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pipelineRenderingCreateInfo = {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO,
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.colorAttachmentCount = 1,
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.pColorAttachmentFormats = &colorFormat,
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.depthAttachmentFormat = depthFormat,
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.stencilAttachmentFormat = depthFormat
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};
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pipelineCreateInfo.pNext = &pipelineRenderingCreateInfo;
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}
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#endif
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device->logicalDevice, VK_NULL_HANDLE, 1, &pipelineCreateInfo, nullptr, &pipeline));
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}
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/** Update vertex and index buffer containing the imGui elements when required */
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void UIOverlay::update(uint32_t currentBuffer)
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{
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ImDrawData* imDrawData = ImGui::GetDrawData();
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if (!imDrawData) {
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return;
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}
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// Note: Alignment is done inside buffer creation
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VkDeviceSize vertexBufferSize = imDrawData->TotalVtxCount * sizeof(ImDrawVert);
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VkDeviceSize indexBufferSize = imDrawData->TotalIdxCount * sizeof(ImDrawIdx);
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// Update buffers only if vertex or index count has been changed compared to current buffer size
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if ((vertexBufferSize == 0) || (indexBufferSize == 0)) {
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return;
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}
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// Create buffers with multiple of a chunk size to minimize the need to recreate them
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const VkDeviceSize chunkSize = 16384;
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vertexBufferSize = ((vertexBufferSize + chunkSize - 1) / chunkSize) * chunkSize;
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indexBufferSize = ((indexBufferSize + chunkSize - 1) / chunkSize) * chunkSize;
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// Recreate vertex buffer only if necessary
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if ((buffers[currentBuffer].vertexBuffer.buffer == VK_NULL_HANDLE) || (buffers[currentBuffer].vertexBuffer.size < vertexBufferSize)) {
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buffers[currentBuffer].vertexBuffer.unmap();
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buffers[currentBuffer].vertexBuffer.destroy();
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VK_CHECK_RESULT(device->createBuffer(VK_BUFFER_USAGE_VERTEX_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &buffers[currentBuffer].vertexBuffer, vertexBufferSize));
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buffers[currentBuffer].vertexCount = imDrawData->TotalVtxCount;
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buffers[currentBuffer].vertexBuffer.map();
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}
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// Recreate index buffer only if necessary
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if ((buffers[currentBuffer].indexBuffer.buffer == VK_NULL_HANDLE) || (buffers[currentBuffer].indexBuffer.size < indexBufferSize)) {
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buffers[currentBuffer].indexBuffer.unmap();
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buffers[currentBuffer].indexBuffer.destroy();
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VK_CHECK_RESULT(device->createBuffer(VK_BUFFER_USAGE_INDEX_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &buffers[currentBuffer].indexBuffer, indexBufferSize));
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buffers[currentBuffer].indexCount = imDrawData->TotalIdxCount;
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buffers[currentBuffer].indexBuffer.map();
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}
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// Upload data
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ImDrawVert* vtxDst = (ImDrawVert*)buffers[currentBuffer].vertexBuffer.mapped;
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ImDrawIdx* idxDst = (ImDrawIdx*)buffers[currentBuffer].indexBuffer.mapped;
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for (int n = 0; n < imDrawData->CmdListsCount; n++) {
|
|
const ImDrawList* cmd_list = imDrawData->CmdLists[n];
|
|
memcpy(vtxDst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
|
|
memcpy(idxDst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
|
|
vtxDst += cmd_list->VtxBuffer.Size;
|
|
idxDst += cmd_list->IdxBuffer.Size;
|
|
}
|
|
|
|
// Flush to make writes visible to GPU
|
|
buffers[currentBuffer].vertexBuffer.flush();
|
|
buffers[currentBuffer].indexBuffer.flush();
|
|
}
|
|
|
|
void UIOverlay::draw(const VkCommandBuffer commandBuffer, uint32_t currentBuffer)
|
|
{
|
|
ImDrawData* imDrawData = ImGui::GetDrawData();
|
|
int32_t vertexOffset = 0;
|
|
int32_t indexOffset = 0;
|
|
|
|
if ((!imDrawData) || (imDrawData->CmdListsCount == 0)) {
|
|
return;
|
|
}
|
|
|
|
if (buffers[currentBuffer].vertexBuffer.buffer == VK_NULL_HANDLE || buffers[currentBuffer].indexBuffer.buffer == VK_NULL_HANDLE) {
|
|
return;
|
|
}
|
|
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
|
|
vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
|
|
vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
|
|
|
|
pushConstBlock.scale = glm::vec2(2.0f / io.DisplaySize.x, 2.0f / io.DisplaySize.y);
|
|
pushConstBlock.translate = glm::vec2(-1.0f);
|
|
vkCmdPushConstants(commandBuffer, pipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(PushConstBlock), &pushConstBlock);
|
|
|
|
assert(buffers[currentBuffer].vertexBuffer.buffer != VK_NULL_HANDLE && buffers[currentBuffer].indexBuffer.buffer != VK_NULL_HANDLE);
|
|
|
|
VkDeviceSize offsets[1] = { 0 };
|
|
vkCmdBindVertexBuffers(commandBuffer, 0, 1, &buffers[currentBuffer].vertexBuffer.buffer, offsets);
|
|
vkCmdBindIndexBuffer(commandBuffer, buffers[currentBuffer].indexBuffer.buffer, 0, VK_INDEX_TYPE_UINT16);
|
|
|
|
for (int32_t i = 0; i < imDrawData->CmdListsCount; i++) {
|
|
const ImDrawList* cmd_list = imDrawData->CmdLists[i];
|
|
for (int32_t j = 0; j < cmd_list->CmdBuffer.Size; j++) {
|
|
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[j];
|
|
VkRect2D scissorRect{
|
|
.offset = {.x = std::max((int32_t)(pcmd->ClipRect.x), 0), .y = std::max((int32_t)(pcmd->ClipRect.y), 0) },
|
|
.extent = {.width = (uint32_t)(pcmd->ClipRect.z - pcmd->ClipRect.x), .height = (uint32_t)(pcmd->ClipRect.w - pcmd->ClipRect.y) }
|
|
};
|
|
vkCmdSetScissor(commandBuffer, 0, 1, &scissorRect);
|
|
vkCmdDrawIndexed(commandBuffer, pcmd->ElemCount, 1, indexOffset, vertexOffset, 0);
|
|
indexOffset += pcmd->ElemCount;
|
|
}
|
|
#if (defined(VK_USE_PLATFORM_IOS_MVK) || defined(VK_USE_PLATFORM_METAL_EXT)) && TARGET_OS_SIMULATOR
|
|
// Apple Device Simulator does not support vkCmdDrawIndexed() with vertexOffset > 0, so rebind vertex buffer instead
|
|
offsets[0] += cmd_list->VtxBuffer.Size * sizeof(ImDrawVert);
|
|
vkCmdBindVertexBuffers(commandBuffer, 0, 1, &buffers[currentBuffer].vertexBuffer.buffer, offsets);
|
|
#else
|
|
vertexOffset += cmd_list->VtxBuffer.Size;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void UIOverlay::resize(uint32_t width, uint32_t height)
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
io.DisplaySize = ImVec2((float)(width), (float)(height));
|
|
}
|
|
|
|
void UIOverlay::freeResources()
|
|
{
|
|
for (auto& buffer : buffers) {
|
|
buffer.vertexBuffer.destroy();
|
|
buffer.indexBuffer.destroy();
|
|
}
|
|
vkDestroyImageView(device->logicalDevice, fontView, nullptr);
|
|
vkDestroyImage(device->logicalDevice, fontImage, nullptr);
|
|
vkFreeMemory(device->logicalDevice, fontMemory, nullptr);
|
|
vkDestroySampler(device->logicalDevice, sampler, nullptr);
|
|
vkDestroyDescriptorSetLayout(device->logicalDevice, descriptorSetLayout, nullptr);
|
|
vkDestroyDescriptorPool(device->logicalDevice, descriptorPool, nullptr);
|
|
vkDestroyPipelineLayout(device->logicalDevice, pipelineLayout, nullptr);
|
|
vkDestroyPipeline(device->logicalDevice, pipeline, nullptr);
|
|
}
|
|
|
|
bool UIOverlay::header(const char *caption)
|
|
{
|
|
return ImGui::CollapsingHeader(caption, ImGuiTreeNodeFlags_DefaultOpen);
|
|
}
|
|
|
|
bool UIOverlay::checkBox(const char *caption, bool *value)
|
|
{
|
|
return ImGui::Checkbox(caption, value);
|
|
}
|
|
|
|
bool UIOverlay::checkBox(const char *caption, int32_t *value)
|
|
{
|
|
bool val = (*value == 1);
|
|
bool res = ImGui::Checkbox(caption, &val);
|
|
*value = val;
|
|
return res;
|
|
}
|
|
|
|
bool UIOverlay::radioButton(const char* caption, bool value)
|
|
{
|
|
return ImGui::RadioButton(caption, value);
|
|
}
|
|
|
|
bool UIOverlay::inputFloat(const char *caption, float *value, float step, uint32_t precision)
|
|
{
|
|
return ImGui::InputFloat(caption, value, step, step * 10.0f, precision);
|
|
}
|
|
|
|
bool UIOverlay::sliderFloat(const char* caption, float* value, float min, float max)
|
|
{
|
|
return ImGui::SliderFloat(caption, value, min, max);
|
|
}
|
|
|
|
bool UIOverlay::sliderInt(const char* caption, int32_t* value, int32_t min, int32_t max)
|
|
{
|
|
return ImGui::SliderInt(caption, value, min, max);
|
|
}
|
|
|
|
bool UIOverlay::comboBox(const char *caption, int32_t *itemindex, std::vector<std::string> items)
|
|
{
|
|
if (items.empty()) {
|
|
return false;
|
|
}
|
|
std::vector<const char*> charitems;
|
|
charitems.reserve(items.size());
|
|
for (size_t i = 0; i < items.size(); i++) {
|
|
charitems.push_back(items[i].c_str());
|
|
}
|
|
uint32_t itemCount = static_cast<uint32_t>(charitems.size());
|
|
return ImGui::Combo(caption, itemindex, &charitems[0], itemCount, itemCount);
|
|
}
|
|
|
|
bool UIOverlay::button(const char *caption)
|
|
{
|
|
return ImGui::Button(caption);
|
|
}
|
|
|
|
bool UIOverlay::colorPicker(const char* caption, float* color) {
|
|
return ImGui::ColorEdit4(caption, color, ImGuiColorEditFlags_NoInputs);
|
|
}
|
|
|
|
void UIOverlay::text(const char *formatstr, ...)
|
|
{
|
|
va_list args;
|
|
va_start(args, formatstr);
|
|
ImGui::TextV(formatstr, args);
|
|
va_end(args);
|
|
}
|
|
}
|