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coah80-LegacyVulkEdition/Minecraft.Client/Platform_Libs/Dev/RenderVk/VulkanBootstrapAppRender.cpp
coah bb5bc1daf8 last hurrah from me
2026-03-31 13:42:22 -05:00

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#include "VulkanBootstrapApp.h"
#include "4J_Render.h"
#include <algorithm>
#include <array>
#include <cstdio>
#include <cstring>
#include <fstream>
#include <limits>
#include <chrono>
#include <stdexcept>
#include <string>
#include <vector>
namespace
{
constexpr size_t kInitialFrameVertices = 262144;
constexpr VkFormat kDepthFormat = VK_FORMAT_D32_SFLOAT;
std::vector<char> readBinaryFile(const std::string &path)
{
std::ifstream file(path, std::ios::ate | std::ios::binary);
if (!file.is_open())
{
throw std::runtime_error("Failed to open shader file: " + path);
}
const std::streamsize fileSize = file.tellg();
std::vector<char> buffer(static_cast<size_t>(fileSize));
file.seekg(0);
file.read(buffer.data(), fileSize);
return buffer;
}
VkShaderModule createShaderModule(VkDevice device, const std::vector<char> &code)
{
VkShaderModuleCreateInfo createInfo {};
createInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
createInfo.codeSize = code.size();
createInfo.pCode = reinterpret_cast<const uint32_t *>(code.data());
VkShaderModule shaderModule = VK_NULL_HANDLE;
if (vkCreateShaderModule(device, &createInfo, nullptr, &shaderModule) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateShaderModule failed");
}
return shaderModule;
}
std::string buildShaderPath(const char *fileName)
{
return std::string(MCE_SHADER_DIR) + "/" + fileName;
}
VkSampler createSampler(
VkDevice device,
VkFilter filter,
VkSamplerAddressMode addressMode)
{
VkSamplerCreateInfo samplerInfo {};
samplerInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
samplerInfo.magFilter = filter;
samplerInfo.minFilter = filter;
samplerInfo.mipmapMode = filter == VK_FILTER_LINEAR
? VK_SAMPLER_MIPMAP_MODE_LINEAR
: VK_SAMPLER_MIPMAP_MODE_NEAREST;
samplerInfo.addressModeU = addressMode;
samplerInfo.addressModeV = addressMode;
samplerInfo.addressModeW = addressMode;
samplerInfo.anisotropyEnable = VK_FALSE;
samplerInfo.maxAnisotropy = 1.0f;
samplerInfo.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK;
samplerInfo.unnormalizedCoordinates = VK_FALSE;
samplerInfo.compareEnable = VK_FALSE;
samplerInfo.compareOp = VK_COMPARE_OP_ALWAYS;
samplerInfo.minLod = 0.0f;
samplerInfo.maxLod = 0.0f;
samplerInfo.mipLodBias = 0.0f;
VkSampler sampler = VK_NULL_HANDLE;
if (vkCreateSampler(device, &samplerInfo, nullptr, &sampler) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateSampler failed");
}
return sampler;
}
}
void VulkanBootstrapApp::recreateSwapchain()
{
int framebufferWidth = 0;
int framebufferHeight = 0;
while (framebufferWidth == 0 || framebufferHeight == 0)
{
glfwGetFramebufferSize(window_, &framebufferWidth, &framebufferHeight);
glfwWaitEvents();
}
vkDeviceWaitIdle(device_);
cleanupSwapchain();
createSwapchain();
createImageViews();
createDepthResources();
createRenderPass();
createGraphicsPipeline();
createFramebuffers();
createCommandBuffers();
setViewportRect(0, 0, swapchainExtent_.width, swapchainExtent_.height);
if (swapchainRecreatedCallback) {
swapchainRecreatedCallback();
}
}
void VulkanBootstrapApp::cleanupSwapchain()
{
if (!commandBuffers_.empty())
{
vkFreeCommandBuffers(
device_,
commandPool_,
static_cast<uint32_t>(commandBuffers_.size()),
commandBuffers_.data());
commandBuffers_.clear();
}
for (VkFramebuffer framebuffer : swapchainFramebuffers_)
{
vkDestroyFramebuffer(device_, framebuffer, nullptr);
}
swapchainFramebuffers_.clear();
for (VkPipeline &pipeline : pipelines_)
{
if (pipeline != VK_NULL_HANDLE)
{
vkDestroyPipeline(device_, pipeline, nullptr);
pipeline = VK_NULL_HANDLE;
}
}
if (pipelineLayout_ != VK_NULL_HANDLE)
{
vkDestroyPipelineLayout(device_, pipelineLayout_, nullptr);
pipelineLayout_ = VK_NULL_HANDLE;
}
if (renderPass_ != VK_NULL_HANDLE)
{
vkDestroyRenderPass(device_, renderPass_, nullptr);
renderPass_ = VK_NULL_HANDLE;
}
if (depthImageView_ != VK_NULL_HANDLE)
{
vkDestroyImageView(device_, depthImageView_, nullptr);
depthImageView_ = VK_NULL_HANDLE;
}
if (depthImage_ != VK_NULL_HANDLE)
{
vkDestroyImage(device_, depthImage_, nullptr);
depthImage_ = VK_NULL_HANDLE;
}
if (depthImageMemory_ != VK_NULL_HANDLE)
{
vkFreeMemory(device_, depthImageMemory_, nullptr);
depthImageMemory_ = VK_NULL_HANDLE;
}
for (VkImageView imageView : swapchainImageViews_)
{
vkDestroyImageView(device_, imageView, nullptr);
}
swapchainImageViews_.clear();
if (swapchain_ != VK_NULL_HANDLE)
{
vkDestroySwapchainKHR(device_, swapchain_, nullptr);
swapchain_ = VK_NULL_HANDLE;
}
swapchainImages_.clear();
}
void VulkanBootstrapApp::createSwapchain()
{
const SwapchainSupportDetails support = querySwapchainSupport(physicalDevice_);
const VkSurfaceFormatKHR surfaceFormat = chooseSwapSurfaceFormat(support.formats);
const VkPresentModeKHR presentMode = chooseSwapPresentMode(support.presentModes);
const VkExtent2D extent = chooseSwapExtent(support.capabilities);
uint32_t imageCount = support.capabilities.minImageCount + 1;
if (support.capabilities.maxImageCount > 0 && imageCount > support.capabilities.maxImageCount)
{
imageCount = support.capabilities.maxImageCount;
}
const QueueFamilyIndices indices = findQueueFamilies(physicalDevice_);
const uint32_t queueFamilyIndices[] = {
indices.graphicsFamily.value(),
indices.presentFamily.value()
};
VkSwapchainCreateInfoKHR createInfo {};
createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
createInfo.surface = surface_;
createInfo.minImageCount = imageCount;
createInfo.imageFormat = surfaceFormat.format;
createInfo.imageColorSpace = surfaceFormat.colorSpace;
createInfo.imageExtent = extent;
createInfo.imageArrayLayers = 1;
createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
if (indices.graphicsFamily != indices.presentFamily)
{
createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
createInfo.queueFamilyIndexCount = 2;
createInfo.pQueueFamilyIndices = queueFamilyIndices;
}
else
{
createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
}
createInfo.preTransform = support.capabilities.currentTransform;
createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
createInfo.presentMode = presentMode;
createInfo.clipped = VK_TRUE;
if (vkCreateSwapchainKHR(device_, &createInfo, nullptr, &swapchain_) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateSwapchainKHR failed");
}
vkGetSwapchainImagesKHR(device_, swapchain_, &imageCount, nullptr);
swapchainImages_.resize(imageCount);
vkGetSwapchainImagesKHR(device_, swapchain_, &imageCount, swapchainImages_.data());
swapchainImageFormat_ = surfaceFormat.format;
swapchainExtent_ = extent;
activePresentMode_ = presentMode;
logSwapchainSelection(surfaceFormat, presentMode, extent);
}
void VulkanBootstrapApp::createImageViews()
{
swapchainImageViews_.resize(swapchainImages_.size());
for (size_t index = 0; index < swapchainImages_.size(); ++index)
{
VkImageViewCreateInfo createInfo {};
createInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
createInfo.image = swapchainImages_[index];
createInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
createInfo.format = swapchainImageFormat_;
createInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
createInfo.subresourceRange.baseMipLevel = 0;
createInfo.subresourceRange.levelCount = 1;
createInfo.subresourceRange.baseArrayLayer = 0;
createInfo.subresourceRange.layerCount = 1;
if (vkCreateImageView(device_, &createInfo, nullptr, &swapchainImageViews_[index]) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateImageView failed");
}
}
}
void VulkanBootstrapApp::createDepthResources()
{
VkImageCreateInfo imageInfo {};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.extent.width = swapchainExtent_.width;
imageInfo.extent.height = swapchainExtent_.height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.format = kDepthFormat;
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
if (vkCreateImage(device_, &imageInfo, nullptr, &depthImage_) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateImage failed for depth buffer");
}
VkMemoryRequirements memoryRequirements {};
vkGetImageMemoryRequirements(device_, depthImage_, &memoryRequirements);
VkMemoryAllocateInfo allocInfo {};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memoryRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(
memoryRequirements.memoryTypeBits,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
if (vkAllocateMemory(device_, &allocInfo, nullptr, &depthImageMemory_) != VK_SUCCESS)
{
throw std::runtime_error("vkAllocateMemory failed for depth buffer");
}
vkBindImageMemory(device_, depthImage_, depthImageMemory_, 0);
VkImageViewCreateInfo viewInfo {};
viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
viewInfo.image = depthImage_;
viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
viewInfo.format = kDepthFormat;
viewInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
viewInfo.subresourceRange.baseMipLevel = 0;
viewInfo.subresourceRange.levelCount = 1;
viewInfo.subresourceRange.baseArrayLayer = 0;
viewInfo.subresourceRange.layerCount = 1;
if (vkCreateImageView(device_, &viewInfo, nullptr, &depthImageView_) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateImageView failed for depth buffer");
}
}
void VulkanBootstrapApp::createRenderPass()
{
VkAttachmentDescription colorAttachment {};
colorAttachment.format = swapchainImageFormat_;
colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
VkAttachmentDescription depthAttachment {};
depthAttachment.format = kDepthFormat;
depthAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
depthAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
depthAttachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
depthAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
depthAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
depthAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
depthAttachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkAttachmentReference colorAttachmentRef {};
colorAttachmentRef.attachment = 0;
colorAttachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
VkAttachmentReference depthAttachmentRef {};
depthAttachmentRef.attachment = 1;
depthAttachmentRef.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
VkSubpassDescription subpass {};
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
subpass.colorAttachmentCount = 1;
subpass.pColorAttachments = &colorAttachmentRef;
subpass.pDepthStencilAttachment = &depthAttachmentRef;
VkSubpassDependency dependency {};
dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
dependency.dstSubpass = 0;
dependency.srcStageMask =
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT |
VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;
dependency.dstStageMask =
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT |
VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT;
dependency.dstAccessMask =
VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT |
VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT;
const std::array<VkAttachmentDescription, 2> attachments {{
colorAttachment,
depthAttachment
}};
VkRenderPassCreateInfo renderPassInfo {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
renderPassInfo.pAttachments = attachments.data();
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpass;
renderPassInfo.dependencyCount = 1;
renderPassInfo.pDependencies = &dependency;
if (vkCreateRenderPass(device_, &renderPassInfo, nullptr, &renderPass_) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateRenderPass failed");
}
}
void VulkanBootstrapApp::createGraphicsPipeline()
{
const std::vector<char> colorVertexShaderCode = readBinaryFile(buildShaderPath("mce_color.vert.spv"));
const std::vector<char> colorFragmentShaderCode = readBinaryFile(buildShaderPath("mce_color.frag.spv"));
const std::vector<char> texturedVertexShaderCode = readBinaryFile(buildShaderPath("mce_textured.vert.spv"));
const std::vector<char> texturedFragmentShaderCode = readBinaryFile(buildShaderPath("mce_textured.frag.spv"));
const std::vector<char> alphaTestFragmentShaderCode = readBinaryFile(buildShaderPath("mce_textured_alphatest.frag.spv"));
const std::vector<char> fogFragmentShaderCode = readBinaryFile(buildShaderPath("mce_textured_fog.frag.spv"));
const std::vector<char> fogAlphaTestFragmentShaderCode = readBinaryFile(buildShaderPath("mce_textured_fog_alphatest.frag.spv"));
const VkShaderModule colorVertexShaderModule = createShaderModule(device_, colorVertexShaderCode);
const VkShaderModule colorFragmentShaderModule = createShaderModule(device_, colorFragmentShaderCode);
const VkShaderModule texturedVertexShaderModule = createShaderModule(device_, texturedVertexShaderCode);
const VkShaderModule texturedFragmentShaderModule = createShaderModule(device_, texturedFragmentShaderCode);
const VkShaderModule alphaTestFragmentShaderModule = createShaderModule(device_, alphaTestFragmentShaderCode);
const VkShaderModule fogFragmentShaderModule = createShaderModule(device_, fogFragmentShaderCode);
const VkShaderModule fogAlphaTestFragmentShaderModule = createShaderModule(device_, fogAlphaTestFragmentShaderCode);
VkVertexInputBindingDescription bindingDescription {};
bindingDescription.binding = 0;
bindingDescription.stride = sizeof(Vertex);
bindingDescription.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
const std::array<VkVertexInputAttributeDescription, 3> attributeDescriptions {{
{0, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(Vertex, position)},
{1, 0, VK_FORMAT_R32G32_SFLOAT, offsetof(Vertex, texCoord)},
{2, 0, VK_FORMAT_R32G32B32A32_SFLOAT, offsetof(Vertex, color)}
}};
VkPipelineVertexInputStateCreateInfo vertexInputInfo {};
vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
vertexInputInfo.vertexBindingDescriptionCount = 1;
vertexInputInfo.pVertexBindingDescriptions = &bindingDescription;
vertexInputInfo.vertexAttributeDescriptionCount = static_cast<uint32_t>(attributeDescriptions.size());
vertexInputInfo.pVertexAttributeDescriptions = attributeDescriptions.data();
VkPipelineInputAssemblyStateCreateInfo inputAssembly {};
inputAssembly.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
inputAssembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
inputAssembly.primitiveRestartEnable = VK_FALSE;
VkPipelineViewportStateCreateInfo viewportState {};
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewportState.viewportCount = 1;
viewportState.pViewports = nullptr;
viewportState.scissorCount = 1;
viewportState.pScissors = nullptr;
const std::array<VkDynamicState, 2> dynamicStates {{
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR
}};
VkPipelineDynamicStateCreateInfo dynamicState {};
dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dynamicState.dynamicStateCount = static_cast<uint32_t>(dynamicStates.size());
dynamicState.pDynamicStates = dynamicStates.data();
VkPipelineRasterizationStateCreateInfo rasterizer {};
rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
rasterizer.depthClampEnable = VK_FALSE;
rasterizer.rasterizerDiscardEnable = VK_FALSE;
rasterizer.polygonMode = VK_POLYGON_MODE_FILL;
rasterizer.lineWidth = 1.0f;
rasterizer.depthBiasEnable = VK_FALSE;
VkPipelineMultisampleStateCreateInfo multisampling {};
multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
multisampling.sampleShadingEnable = VK_FALSE;
multisampling.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
VkPushConstantRange pushConstantRange {};
pushConstantRange.stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
pushConstantRange.offset = 0;
pushConstantRange.size = sizeof(float) * 16;
VkPipelineLayoutCreateInfo pipelineLayoutInfo {};
pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
pipelineLayoutInfo.setLayoutCount = textureSetLayout_ != VK_NULL_HANDLE ? 1u : 0u;
pipelineLayoutInfo.pSetLayouts = textureSetLayout_ != VK_NULL_HANDLE ? &textureSetLayout_ : nullptr;
pipelineLayoutInfo.pushConstantRangeCount = 1;
pipelineLayoutInfo.pPushConstantRanges = &pushConstantRange;
if (vkCreatePipelineLayout(device_, &pipelineLayoutInfo, nullptr, &pipelineLayout_) != VK_SUCCESS)
{
throw std::runtime_error("vkCreatePipelineLayout failed");
}
auto createPipelineForConfig =
[&](ShaderVariant variant,
BlendMode blendMode,
bool depthTestEnabled,
bool depthWriteEnabled,
bool cullEnabled,
bool cullClockwise) {
VkShaderModule vertexShaderModule = variant == ShaderVariant::ColorOnly
? colorVertexShaderModule
: texturedVertexShaderModule;
VkShaderModule fragmentShaderModule = VK_NULL_HANDLE;
switch (variant)
{
case ShaderVariant::ColorOnly:
fragmentShaderModule = colorFragmentShaderModule;
break;
case ShaderVariant::Textured:
fragmentShaderModule = texturedFragmentShaderModule;
break;
case ShaderVariant::TexturedAlphaTest:
fragmentShaderModule = alphaTestFragmentShaderModule;
break;
case ShaderVariant::TexturedFog:
fragmentShaderModule = fogFragmentShaderModule;
break;
case ShaderVariant::TexturedFogAlphaTest:
fragmentShaderModule = fogAlphaTestFragmentShaderModule;
break;
default:
throw std::runtime_error("Unsupported shader variant");
}
VkPipelineShaderStageCreateInfo vertexShaderStageInfo {};
vertexShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
vertexShaderStageInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
vertexShaderStageInfo.module = vertexShaderModule;
vertexShaderStageInfo.pName = "main";
VkPipelineShaderStageCreateInfo fragmentShaderStageInfo {};
fragmentShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
fragmentShaderStageInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
fragmentShaderStageInfo.module = fragmentShaderModule;
fragmentShaderStageInfo.pName = "main";
const VkPipelineShaderStageCreateInfo shaderStages[] = {
vertexShaderStageInfo,
fragmentShaderStageInfo
};
VkPipelineColorBlendAttachmentState colorBlendAttachment {};
colorBlendAttachment.colorWriteMask =
VK_COLOR_COMPONENT_R_BIT |
VK_COLOR_COMPONENT_G_BIT |
VK_COLOR_COMPONENT_B_BIT |
VK_COLOR_COMPONENT_A_BIT;
colorBlendAttachment.blendEnable = blendMode != BlendMode::Opaque ? VK_TRUE : VK_FALSE;
if (blendMode == BlendMode::Alpha)
{
colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
colorBlendAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
colorBlendAttachment.colorBlendOp = VK_BLEND_OP_ADD;
colorBlendAttachment.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
colorBlendAttachment.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
colorBlendAttachment.alphaBlendOp = VK_BLEND_OP_ADD;
}
else if (blendMode == BlendMode::Additive)
{
colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
colorBlendAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
colorBlendAttachment.colorBlendOp = VK_BLEND_OP_ADD;
colorBlendAttachment.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
colorBlendAttachment.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
colorBlendAttachment.alphaBlendOp = VK_BLEND_OP_ADD;
}
else if (blendMode == BlendMode::PreserveDestination)
{
colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_ZERO;
colorBlendAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
colorBlendAttachment.colorBlendOp = VK_BLEND_OP_ADD;
colorBlendAttachment.srcAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
colorBlendAttachment.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
colorBlendAttachment.alphaBlendOp = VK_BLEND_OP_ADD;
}
VkPipelineColorBlendStateCreateInfo colorBlending {};
colorBlending.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
colorBlending.logicOpEnable = VK_FALSE;
colorBlending.attachmentCount = 1;
colorBlending.pAttachments = &colorBlendAttachment;
VkPipelineDepthStencilStateCreateInfo depthStencil {};
depthStencil.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
depthStencil.depthTestEnable = depthTestEnabled ? VK_TRUE : VK_FALSE;
depthStencil.depthWriteEnable = depthWriteEnabled ? VK_TRUE : VK_FALSE;
depthStencil.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
depthStencil.depthBoundsTestEnable = VK_FALSE;
depthStencil.stencilTestEnable = VK_FALSE;
VkPipelineRasterizationStateCreateInfo rasterizerState = rasterizer;
rasterizerState.cullMode = cullEnabled ? VK_CULL_MODE_BACK_BIT : VK_CULL_MODE_NONE;
// We use a negative-height viewport when recording command buffers to
// match OpenGL's screen-space orientation. That flips winding, so front
// face must be inverted here to preserve legacy GL cull semantics.
rasterizerState.frontFace = cullClockwise ? VK_FRONT_FACE_COUNTER_CLOCKWISE : VK_FRONT_FACE_CLOCKWISE;
VkGraphicsPipelineCreateInfo pipelineInfo {};
pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineInfo.stageCount = 2;
pipelineInfo.pStages = shaderStages;
pipelineInfo.pVertexInputState = &vertexInputInfo;
pipelineInfo.pInputAssemblyState = &inputAssembly;
pipelineInfo.pViewportState = &viewportState;
pipelineInfo.pRasterizationState = &rasterizerState;
pipelineInfo.pMultisampleState = &multisampling;
pipelineInfo.pDepthStencilState = &depthStencil;
pipelineInfo.pColorBlendState = &colorBlending;
pipelineInfo.pDynamicState = &dynamicState;
pipelineInfo.layout = pipelineLayout_;
pipelineInfo.renderPass = renderPass_;
pipelineInfo.subpass = 0;
VkPipeline pipeline = VK_NULL_HANDLE;
if (vkCreateGraphicsPipelines(device_, VK_NULL_HANDLE, 1, &pipelineInfo, nullptr, &pipeline) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateGraphicsPipelines failed");
}
return pipeline;
};
for (uint32_t variantIndex = 0; variantIndex < static_cast<uint32_t>(ShaderVariant::Count); ++variantIndex)
{
const ShaderVariant variant = static_cast<ShaderVariant>(variantIndex);
for (uint32_t blendIndex = 0; blendIndex < static_cast<uint32_t>(BlendMode::Count); ++blendIndex)
{
const BlendMode blendMode = static_cast<BlendMode>(blendIndex);
for (uint32_t depthTestIndex = 0; depthTestIndex < 2; ++depthTestIndex)
{
for (uint32_t depthWriteIndex = 0; depthWriteIndex < 2; ++depthWriteIndex)
{
for (uint32_t cullIndex = 0; cullIndex < 2; ++cullIndex)
{
for (uint32_t clockwiseIndex = 0; clockwiseIndex < 2; ++clockwiseIndex)
{
const uint32_t pipelineIndex = getPipelineIndex(
variant,
blendMode,
depthTestIndex != 0,
depthWriteIndex != 0,
cullIndex != 0,
clockwiseIndex != 0);
pipelines_[pipelineIndex] = createPipelineForConfig(
variant,
blendMode,
depthTestIndex != 0,
depthWriteIndex != 0,
cullIndex != 0,
clockwiseIndex != 0);
}
}
}
}
}
}
vkDestroyShaderModule(device_, fogAlphaTestFragmentShaderModule, nullptr);
vkDestroyShaderModule(device_, fogFragmentShaderModule, nullptr);
vkDestroyShaderModule(device_, alphaTestFragmentShaderModule, nullptr);
vkDestroyShaderModule(device_, texturedFragmentShaderModule, nullptr);
vkDestroyShaderModule(device_, texturedVertexShaderModule, nullptr);
vkDestroyShaderModule(device_, colorFragmentShaderModule, nullptr);
vkDestroyShaderModule(device_, colorVertexShaderModule, nullptr);
}
void VulkanBootstrapApp::createFramebuffers()
{
swapchainFramebuffers_.resize(swapchainImageViews_.size());
for (size_t index = 0; index < swapchainImageViews_.size(); ++index)
{
const std::array<VkImageView, 2> attachments {{
swapchainImageViews_[index],
depthImageView_
}};
VkFramebufferCreateInfo framebufferInfo {};
framebufferInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
framebufferInfo.renderPass = renderPass_;
framebufferInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
framebufferInfo.pAttachments = attachments.data();
framebufferInfo.width = swapchainExtent_.width;
framebufferInfo.height = swapchainExtent_.height;
framebufferInfo.layers = 1;
if (vkCreateFramebuffer(device_, &framebufferInfo, nullptr, &swapchainFramebuffers_[index]) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateFramebuffer failed");
}
}
}
void VulkanBootstrapApp::createVertexBuffer(size_t vertexCapacity)
{
const VkDeviceSize bufferSize = sizeof(Vertex) * vertexCapacity;
createBuffer(
bufferSize,
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
vertexBuffer_,
vertexBufferMemory_);
if (vkMapMemory(device_, vertexBufferMemory_, 0, bufferSize, 0, &vertexBufferMapped_) != VK_SUCCESS)
{
throw std::runtime_error("vkMapMemory failed for vertex buffer");
}
vertexBufferCapacity_ = vertexCapacity;
}
void VulkanBootstrapApp::ensureVertexBufferCapacity(size_t requiredVertices)
{
if (requiredVertices == 0 || requiredVertices <= vertexBufferCapacity_)
{
return;
}
size_t newCapacity = std::max(vertexBufferCapacity_, kInitialFrameVertices);
while (newCapacity < requiredVertices)
{
newCapacity *= 2;
}
if (vertexBufferMapped_ != nullptr)
{
vkUnmapMemory(device_, vertexBufferMemory_);
vertexBufferMapped_ = nullptr;
}
if (vertexBuffer_ != VK_NULL_HANDLE)
{
vkDestroyBuffer(device_, vertexBuffer_, nullptr);
vertexBuffer_ = VK_NULL_HANDLE;
}
if (vertexBufferMemory_ != VK_NULL_HANDLE)
{
vkFreeMemory(device_, vertexBufferMemory_, nullptr);
vertexBufferMemory_ = VK_NULL_HANDLE;
}
createVertexBuffer(newCapacity);
}
void VulkanBootstrapApp::createCommandBuffers()
{
commandBuffers_.resize(swapchainFramebuffers_.size());
VkCommandBufferAllocateInfo allocInfo {};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.commandPool = commandPool_;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandBufferCount = static_cast<uint32_t>(commandBuffers_.size());
if (vkAllocateCommandBuffers(device_, &allocInfo, commandBuffers_.data()) != VK_SUCCESS)
{
throw std::runtime_error("vkAllocateCommandBuffers failed");
}
}
void VulkanBootstrapApp::createSyncObjects()
{
VkSemaphoreCreateInfo semaphoreInfo {};
semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
VkFenceCreateInfo fenceInfo {};
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
const bool semaphoreFailed =
vkCreateSemaphore(device_, &semaphoreInfo, nullptr, &imageAvailableSemaphore_) != VK_SUCCESS ||
vkCreateSemaphore(device_, &semaphoreInfo, nullptr, &renderFinishedSemaphore_) != VK_SUCCESS;
if (semaphoreFailed || vkCreateFence(device_, &fenceInfo, nullptr, &inFlightFence_) != VK_SUCCESS)
{
throw std::runtime_error("Failed to create synchronization primitives");
}
}
void VulkanBootstrapApp::createTextureResources()
{
createDescriptorSetLayout();
createDescriptorPool();
createSamplers();
createFallbackTexture();
}
void VulkanBootstrapApp::createDescriptorPool()
{
VkDescriptorPoolSize poolSize {};
poolSize.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
poolSize.descriptorCount = kMaxTextures;
VkDescriptorPoolCreateInfo poolInfo {};
poolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
poolInfo.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT;
poolInfo.poolSizeCount = 1;
poolInfo.pPoolSizes = &poolSize;
poolInfo.maxSets = kMaxTextures;
if (vkCreateDescriptorPool(device_, &poolInfo, nullptr, &descriptorPool_) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateDescriptorPool failed");
}
}
void VulkanBootstrapApp::createDescriptorSetLayout()
{
VkDescriptorSetLayoutBinding samplerLayoutBinding {};
samplerLayoutBinding.binding = 0;
samplerLayoutBinding.descriptorCount = 1;
samplerLayoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
samplerLayoutBinding.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
VkDescriptorSetLayoutCreateInfo layoutInfo {};
layoutInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
layoutInfo.bindingCount = 1;
layoutInfo.pBindings = &samplerLayoutBinding;
if (vkCreateDescriptorSetLayout(device_, &layoutInfo, nullptr, &textureSetLayout_) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateDescriptorSetLayout failed");
}
}
void VulkanBootstrapApp::createSamplers()
{
nearestRepeatSampler_ = createSampler(device_, VK_FILTER_NEAREST, VK_SAMPLER_ADDRESS_MODE_REPEAT);
nearestClampSampler_ = createSampler(device_, VK_FILTER_NEAREST, VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE);
linearRepeatSampler_ = createSampler(device_, VK_FILTER_LINEAR, VK_SAMPLER_ADDRESS_MODE_REPEAT);
linearClampSampler_ = createSampler(device_, VK_FILTER_LINEAR, VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE);
}
void VulkanBootstrapApp::createFallbackTexture()
{
fallbackTextureIndex_ = allocateTextureSlot();
if (fallbackTextureIndex_ < 0)
{
throw std::runtime_error("Failed to allocate fallback texture slot");
}
const uint32_t whitePixel = 0xffffffffu;
uploadTextureData(fallbackTextureIndex_, 1, 1, &whitePixel);
boundTextureIndex_ = -1;
}
void VulkanBootstrapApp::drawFrame()
{
auto frameStart = std::chrono::high_resolution_clock::now();
std::vector<Vertex> frameVertices;
std::vector<DrawBatch> frameBatches;
{
std::lock_guard<std::mutex> lock(frameDataMutex_);
frameVertices = std::move(frameVertices_);
frameBatches = std::move(frameBatches_);
}
auto fenceStart = std::chrono::high_resolution_clock::now();
vkWaitForFences(device_, 1, &inFlightFence_, VK_TRUE, std::numeric_limits<uint64_t>::max());
auto fenceEnd = std::chrono::high_resolution_clock::now();
uint32_t imageIndex = 0;
VkResult result = vkAcquireNextImageKHR(
device_,
swapchain_,
std::numeric_limits<uint64_t>::max(),
imageAvailableSemaphore_,
VK_NULL_HANDLE,
&imageIndex);
currentImageIndex_ = imageIndex;
if (result == VK_ERROR_OUT_OF_DATE_KHR)
{
recreateSwapchain();
return;
}
if (result != VK_SUCCESS && result != VK_SUBOPTIMAL_KHR)
{
throw std::runtime_error("vkAcquireNextImageKHR failed");
}
if (!frameVertices.empty())
{
ensureVertexBufferCapacity(frameVertices.size());
std::memcpy(
vertexBufferMapped_,
frameVertices.data(),
frameVertices.size() * sizeof(Vertex));
}
vkResetFences(device_, 1, &inFlightFence_);
vkResetCommandBuffer(commandBuffers_[imageIndex], 0);
recordCommandBuffer(commandBuffers_[imageIndex], imageIndex, frameBatches);
const VkSemaphore waitSemaphores[] = {imageAvailableSemaphore_};
const VkPipelineStageFlags waitStages[] = {VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT};
const VkSemaphore signalSemaphores[] = {renderFinishedSemaphore_};
VkSubmitInfo submitInfo {};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.waitSemaphoreCount = 1;
submitInfo.pWaitSemaphores = waitSemaphores;
submitInfo.pWaitDstStageMask = waitStages;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffers_[imageIndex];
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = signalSemaphores;
if (vkQueueSubmit(graphicsQueue_, 1, &submitInfo, inFlightFence_) != VK_SUCCESS)
{
throw std::runtime_error("vkQueueSubmit failed");
}
VkPresentInfoKHR presentInfo {};
presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
presentInfo.waitSemaphoreCount = 1;
presentInfo.pWaitSemaphores = signalSemaphores;
presentInfo.swapchainCount = 1;
presentInfo.pSwapchains = &swapchain_;
presentInfo.pImageIndices = &imageIndex;
result = vkQueuePresentKHR(presentQueue_, &presentInfo);
if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR || framebufferResized_)
{
framebufferResized_ = false;
recreateSwapchain();
return;
}
if (result != VK_SUCCESS)
{
throw std::runtime_error("vkQueuePresentKHR failed");
}
auto frameEnd = std::chrono::high_resolution_clock::now();
frameStats_.drawFrameMs = std::chrono::duration<double, std::milli>(frameEnd - frameStart).count();
frameStats_.fenceWaitMs = std::chrono::duration<double, std::milli>(fenceEnd - fenceStart).count();
frameStats_.vertexCount = static_cast<uint32_t>(frameVertices.size());
frameStats_.batchCount = static_cast<uint32_t>(frameBatches.size());
uint32_t texCount = 0;
for (uint32_t i = 0; i < kMaxTextures; ++i)
{
if (textureSlots_[i].allocated)
++texCount;
}
frameStats_.textureCount = texCount;
frameStats_.swapchainImageCount = static_cast<uint32_t>(swapchainImages_.size());
frameStats_.presentModeName =
activePresentMode_ == VK_PRESENT_MODE_MAILBOX_KHR ? "MAILBOX" :
activePresentMode_ == VK_PRESENT_MODE_FIFO_KHR ? "FIFO (vsync)" :
activePresentMode_ == VK_PRESENT_MODE_IMMEDIATE_KHR ? "IMMEDIATE" :
activePresentMode_ == VK_PRESENT_MODE_FIFO_RELAXED_KHR ? "FIFO_RELAXED" : "unknown";
prevFrameVertexCount_ = frameVertices.size();
prevFrameBatchCount_ = frameBatches.size();
}
void VulkanBootstrapApp::recordCommandBuffer(
VkCommandBuffer commandBuffer,
uint32_t imageIndex,
const std::vector<DrawBatch> &frameBatches)
{
VkCommandBufferBeginInfo beginInfo {};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
if (vkBeginCommandBuffer(commandBuffer, &beginInfo) != VK_SUCCESS)
{
throw std::runtime_error("vkBeginCommandBuffer failed");
}
const std::array<VkClearValue, 2> clearValues {{
{{{clearColour_[0], clearColour_[1], clearColour_[2], clearColour_[3]}}},
{.depthStencil = {1.0f, 0}}
}};
VkRenderPassBeginInfo renderPassInfo {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
renderPassInfo.renderPass = renderPass_;
renderPassInfo.framebuffer = swapchainFramebuffers_[imageIndex];
renderPassInfo.renderArea.offset = {0, 0};
renderPassInfo.renderArea.extent = swapchainExtent_;
renderPassInfo.clearValueCount = static_cast<uint32_t>(clearValues.size());
renderPassInfo.pClearValues = clearValues.data();
vkCmdBeginRenderPass(commandBuffer, &renderPassInfo, VK_SUBPASS_CONTENTS_INLINE);
if (!frameBatches.empty())
{
const VkBuffer vertexBuffers[] = {vertexBuffer_};
const VkDeviceSize offsets[] = {0};
for (const DrawBatch &batch : frameBatches)
{
const uint32_t viewportWidth = batch.viewportWidth != 0 ? batch.viewportWidth : swapchainExtent_.width;
const uint32_t viewportHeight = batch.viewportHeight != 0 ? batch.viewportHeight : swapchainExtent_.height;
const int viewportX = batch.viewportX;
const int viewportY = batch.viewportY;
VkViewport viewport {};
viewport.x = static_cast<float>(viewportX);
viewport.y = static_cast<float>(viewportY + static_cast<int>(viewportHeight));
viewport.width = static_cast<float>(viewportWidth);
viewport.height = -static_cast<float>(viewportHeight);
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
vkCmdSetViewport(commandBuffer, 0, 1, &viewport);
VkRect2D scissor {};
scissor.offset = {viewportX, viewportY};
scissor.extent = {viewportWidth, viewportHeight};
vkCmdSetScissor(commandBuffer, 0, 1, &scissor);
if (batch.clearFlags != 0)
{
std::array<VkClearAttachment, 2> clearAttachments {};
uint32_t clearAttachmentCount = 0;
if ((batch.clearFlags & GL_COLOR_BUFFER_BIT) != 0)
{
VkClearAttachment &colorAttachment = clearAttachments[clearAttachmentCount++];
colorAttachment.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
colorAttachment.colorAttachment = 0;
colorAttachment.clearValue.color = {
{clearColour_[0], clearColour_[1], clearColour_[2], clearColour_[3]}
};
}
if ((batch.clearFlags & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) != 0)
{
VkClearAttachment &depthAttachment = clearAttachments[clearAttachmentCount++];
depthAttachment.aspectMask = 0;
if ((batch.clearFlags & GL_DEPTH_BUFFER_BIT) != 0)
{
depthAttachment.aspectMask |= VK_IMAGE_ASPECT_DEPTH_BIT;
}
if ((batch.clearFlags & GL_STENCIL_BUFFER_BIT) != 0)
{
depthAttachment.aspectMask |= VK_IMAGE_ASPECT_STENCIL_BIT;
}
depthAttachment.clearValue.depthStencil = {1.0f, 0};
}
if (clearAttachmentCount > 0)
{
VkClearRect clearRect {};
clearRect.rect.offset = {viewportX, viewportY};
clearRect.rect.extent = {viewportWidth, viewportHeight};
clearRect.baseArrayLayer = 0;
clearRect.layerCount = 1;
vkCmdClearAttachments(
commandBuffer,
clearAttachmentCount,
clearAttachments.data(),
1,
&clearRect);
}
continue;
}
vkCmdBindVertexBuffers(commandBuffer, 0, 1, vertexBuffers, offsets);
const VkPipeline pipeline = getPipelineForBatch(batch);
if (pipeline == VK_NULL_HANDLE)
{
continue;
}
vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
int textureIndex = batch.renderState.textureIndex;
if (textureIndex < 0 || textureIndex >= static_cast<int>(kMaxTextures) || !textureSlots_[textureIndex].allocated)
{
textureIndex = fallbackTextureIndex_;
}
if (textureIndex >= 0 && textureSlots_[textureIndex].descriptorSet != VK_NULL_HANDLE)
{
vkCmdBindDescriptorSets(
commandBuffer,
VK_PIPELINE_BIND_POINT_GRAPHICS,
pipelineLayout_,
0,
1,
&textureSlots_[textureIndex].descriptorSet,
0,
nullptr);
}
vkCmdPushConstants(
commandBuffer,
pipelineLayout_,
VK_SHADER_STAGE_VERTEX_BIT,
0,
sizeof(float) * batch.mvp.size(),
batch.mvp.data());
vkCmdDraw(commandBuffer, batch.vertexCount, 1, batch.firstVertex, 0);
}
}
vkCmdEndRenderPass(commandBuffer);
if (overlayCallback) {
overlayCallback(commandBuffer, imageIndex);
}
if (vkEndCommandBuffer(commandBuffer) != VK_SUCCESS)
{
throw std::runtime_error("vkEndCommandBuffer failed");
}
}
uint32_t VulkanBootstrapApp::findMemoryType(
uint32_t typeFilter,
VkMemoryPropertyFlags properties) const
{
VkPhysicalDeviceMemoryProperties memoryProperties {};
vkGetPhysicalDeviceMemoryProperties(physicalDevice_, &memoryProperties);
for (uint32_t index = 0; index < memoryProperties.memoryTypeCount; ++index)
{
const bool typeMatches = (typeFilter & (1u << index)) != 0;
const bool propertyMatches =
(memoryProperties.memoryTypes[index].propertyFlags & properties) == properties;
if (typeMatches && propertyMatches)
{
return index;
}
}
throw std::runtime_error("Failed to find compatible Vulkan memory type");
}
void VulkanBootstrapApp::createBuffer(
VkDeviceSize size,
VkBufferUsageFlags usage,
VkMemoryPropertyFlags properties,
VkBuffer &buffer,
VkDeviceMemory &bufferMemory)
{
VkBufferCreateInfo bufferInfo {};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = size;
bufferInfo.usage = usage;
bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
if (vkCreateBuffer(device_, &bufferInfo, nullptr, &buffer) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateBuffer failed");
}
VkMemoryRequirements memoryRequirements {};
vkGetBufferMemoryRequirements(device_, buffer, &memoryRequirements);
VkMemoryAllocateInfo allocInfo {};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memoryRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(memoryRequirements.memoryTypeBits, properties);
if (vkAllocateMemory(device_, &allocInfo, nullptr, &bufferMemory) != VK_SUCCESS)
{
throw std::runtime_error("vkAllocateMemory failed");
}
vkBindBufferMemory(device_, buffer, bufferMemory, 0);
}
void VulkanBootstrapApp::copyBuffer(VkBuffer sourceBuffer, VkBuffer destinationBuffer, VkDeviceSize size)
{
VkCommandBuffer commandBuffer = beginOneTimeCommands();
VkBufferCopy copyRegion {};
copyRegion.size = size;
vkCmdCopyBuffer(commandBuffer, sourceBuffer, destinationBuffer, 1, &copyRegion);
endOneTimeCommands(commandBuffer);
}
VkCommandBuffer VulkanBootstrapApp::beginOneTimeCommands()
{
VkCommandBufferAllocateInfo allocInfo {};
allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
allocInfo.commandPool = commandPool_;
allocInfo.commandBufferCount = 1;
VkCommandBuffer commandBuffer = VK_NULL_HANDLE;
if (vkAllocateCommandBuffers(device_, &allocInfo, &commandBuffer) != VK_SUCCESS)
{
throw std::runtime_error("vkAllocateCommandBuffers failed");
}
VkCommandBufferBeginInfo beginInfo {};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
if (vkBeginCommandBuffer(commandBuffer, &beginInfo) != VK_SUCCESS)
{
throw std::runtime_error("vkBeginCommandBuffer failed");
}
return commandBuffer;
}
void VulkanBootstrapApp::endOneTimeCommands(VkCommandBuffer commandBuffer)
{
if (vkEndCommandBuffer(commandBuffer) != VK_SUCCESS)
{
throw std::runtime_error("vkEndCommandBuffer failed");
}
VkSubmitInfo submitInfo {};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &commandBuffer;
if (vkQueueSubmit(graphicsQueue_, 1, &submitInfo, VK_NULL_HANDLE) != VK_SUCCESS)
{
throw std::runtime_error("vkQueueSubmit failed");
}
vkQueueWaitIdle(graphicsQueue_);
vkFreeCommandBuffers(device_, commandPool_, 1, &commandBuffer);
}
void VulkanBootstrapApp::transitionImageLayout(
VkCommandBuffer commandBuffer,
VkImage image,
VkImageLayout oldLayout,
VkImageLayout newLayout)
{
VkImageMemoryBarrier barrier {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.oldLayout = oldLayout;
barrier.newLayout = newLayout;
barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
barrier.image = image;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.baseMipLevel = 0;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.baseArrayLayer = 0;
barrier.subresourceRange.layerCount = 1;
VkPipelineStageFlags sourceStage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
VkPipelineStageFlags destinationStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
if (oldLayout == VK_IMAGE_LAYOUT_UNDEFINED &&
newLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL)
{
barrier.srcAccessMask = 0;
barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
sourceStage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
destinationStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
}
else if (oldLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL &&
newLayout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL)
{
barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
sourceStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
destinationStage = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
}
else if (oldLayout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL &&
newLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL)
{
barrier.srcAccessMask = VK_ACCESS_SHADER_READ_BIT;
barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
sourceStage = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
destinationStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
}
else
{
throw std::runtime_error("Unsupported image layout transition");
}
vkCmdPipelineBarrier(
commandBuffer,
sourceStage,
destinationStage,
0,
0,
nullptr,
0,
nullptr,
1,
&barrier);
}
void VulkanBootstrapApp::ensureStagingBuffer(VkDeviceSize requiredSize)
{
if (stagingBuffer_ != VK_NULL_HANDLE && stagingBufferSize_ >= requiredSize)
{
return;
}
if (stagingBuffer_ != VK_NULL_HANDLE)
{
vkDestroyBuffer(device_, stagingBuffer_, nullptr);
stagingBuffer_ = VK_NULL_HANDLE;
}
if (stagingBufferMemory_ != VK_NULL_HANDLE)
{
vkFreeMemory(device_, stagingBufferMemory_, nullptr);
stagingBufferMemory_ = VK_NULL_HANDLE;
}
stagingBufferSize_ = std::max<VkDeviceSize>(requiredSize, 4 * 1024 * 1024);
createBuffer(
stagingBufferSize_,
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
stagingBuffer_,
stagingBufferMemory_);
}
void VulkanBootstrapApp::destroyTextureResources()
{
for (uint32_t index = 0; index < kMaxTextures; ++index)
{
destroyTextureSlotResources(static_cast<int>(index), false);
textureSlots_[index] = TextureSlot {};
}
boundTextureIndex_ = -1;
fallbackTextureIndex_ = -1;
if (stagingBuffer_ != VK_NULL_HANDLE)
{
vkDestroyBuffer(device_, stagingBuffer_, nullptr);
stagingBuffer_ = VK_NULL_HANDLE;
}
if (stagingBufferMemory_ != VK_NULL_HANDLE)
{
vkFreeMemory(device_, stagingBufferMemory_, nullptr);
stagingBufferMemory_ = VK_NULL_HANDLE;
}
stagingBufferSize_ = 0;
if (linearClampSampler_ != VK_NULL_HANDLE)
{
vkDestroySampler(device_, linearClampSampler_, nullptr);
linearClampSampler_ = VK_NULL_HANDLE;
}
if (linearRepeatSampler_ != VK_NULL_HANDLE)
{
vkDestroySampler(device_, linearRepeatSampler_, nullptr);
linearRepeatSampler_ = VK_NULL_HANDLE;
}
if (nearestClampSampler_ != VK_NULL_HANDLE)
{
vkDestroySampler(device_, nearestClampSampler_, nullptr);
nearestClampSampler_ = VK_NULL_HANDLE;
}
if (nearestRepeatSampler_ != VK_NULL_HANDLE)
{
vkDestroySampler(device_, nearestRepeatSampler_, nullptr);
nearestRepeatSampler_ = VK_NULL_HANDLE;
}
if (descriptorPool_ != VK_NULL_HANDLE)
{
vkDestroyDescriptorPool(device_, descriptorPool_, nullptr);
descriptorPool_ = VK_NULL_HANDLE;
}
if (textureSetLayout_ != VK_NULL_HANDLE)
{
vkDestroyDescriptorSetLayout(device_, textureSetLayout_, nullptr);
textureSetLayout_ = VK_NULL_HANDLE;
}
}
void VulkanBootstrapApp::destroyTextureSlotResources(int index, bool freeDescriptorSet)
{
if (index < 0 || index >= static_cast<int>(kMaxTextures))
{
return;
}
TextureSlot &slot = textureSlots_[index];
if (slot.imageView != VK_NULL_HANDLE)
{
vkDestroyImageView(device_, slot.imageView, nullptr);
slot.imageView = VK_NULL_HANDLE;
}
if (slot.image != VK_NULL_HANDLE)
{
vkDestroyImage(device_, slot.image, nullptr);
slot.image = VK_NULL_HANDLE;
}
if (slot.memory != VK_NULL_HANDLE)
{
vkFreeMemory(device_, slot.memory, nullptr);
slot.memory = VK_NULL_HANDLE;
}
if (freeDescriptorSet && slot.descriptorSet != VK_NULL_HANDLE && descriptorPool_ != VK_NULL_HANDLE)
{
vkFreeDescriptorSets(device_, descriptorPool_, 1, &slot.descriptorSet);
slot.descriptorSet = VK_NULL_HANDLE;
}
}
void VulkanBootstrapApp::updateTextureDescriptor(int index)
{
if (index < 0 || index >= static_cast<int>(kMaxTextures))
{
return;
}
TextureSlot &slot = textureSlots_[index];
if (slot.descriptorSet == VK_NULL_HANDLE || slot.imageView == VK_NULL_HANDLE)
{
return;
}
VkDescriptorImageInfo imageInfo {};
imageInfo.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
imageInfo.imageView = slot.imageView;
imageInfo.sampler = getSamplerForSlot(slot);
VkWriteDescriptorSet descriptorWrite {};
descriptorWrite.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
descriptorWrite.dstSet = slot.descriptorSet;
descriptorWrite.dstBinding = 0;
descriptorWrite.dstArrayElement = 0;
descriptorWrite.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
descriptorWrite.descriptorCount = 1;
descriptorWrite.pImageInfo = &imageInfo;
vkUpdateDescriptorSets(device_, 1, &descriptorWrite, 0, nullptr);
}
VkSampler VulkanBootstrapApp::getSamplerForSlot(const TextureSlot &slot) const
{
if (slot.linearFiltering)
{
return slot.clampAddress ? linearClampSampler_ : linearRepeatSampler_;
}
return slot.clampAddress ? nearestClampSampler_ : nearestRepeatSampler_;
}
VkPipeline VulkanBootstrapApp::getPipelineForBatch(const DrawBatch &batch) const
{
const uint32_t pipelineIndex = getPipelineIndex(
batch.shaderVariant,
batch.renderState.blendMode,
batch.renderState.depthTestEnabled,
batch.renderState.depthWriteEnabled,
batch.renderState.cullEnabled,
batch.renderState.cullClockwise);
return pipelines_[pipelineIndex];
}
uint32_t VulkanBootstrapApp::getPipelineIndex(
ShaderVariant variant,
BlendMode blendMode,
bool depthTestEnabled,
bool depthWriteEnabled,
bool cullEnabled,
bool cullClockwise) const
{
constexpr uint32_t kPerBlendStateCount = 16u;
constexpr uint32_t kBlendModeCount = static_cast<uint32_t>(BlendMode::Count);
return
static_cast<uint32_t>(variant) * kBlendModeCount * kPerBlendStateCount +
static_cast<uint32_t>(blendMode) * kPerBlendStateCount +
(depthTestEnabled ? 8u : 0u) +
(depthWriteEnabled ? 4u : 0u) +
(cullEnabled ? 2u : 0u) +
(cullClockwise ? 1u : 0u);
}
int VulkanBootstrapApp::allocateTextureSlot()
{
for (uint32_t index = 0; index < kMaxTextures; ++index)
{
TextureSlot &slot = textureSlots_[index];
if (!slot.allocated)
{
slot = TextureSlot {};
slot.allocated = true;
return static_cast<int>(index);
}
}
std::fprintf(stderr, "[mce_vulkan_boot] Texture pool exhausted\n");
return fallbackTextureIndex_;
}
void VulkanBootstrapApp::freeTextureSlot(int index)
{
if (index < 0 || index >= static_cast<int>(kMaxTextures) || index == fallbackTextureIndex_)
{
return;
}
if (!textureSlots_[index].allocated)
{
return;
}
destroyTextureSlotResources(index, true);
textureSlots_[index] = TextureSlot {};
}
void VulkanBootstrapApp::setCurrentTexture(int index)
{
if (index < 0)
{
boundTextureIndex_ = -1;
return;
}
if (index >= 0 &&
index < static_cast<int>(kMaxTextures) &&
textureSlots_[index].allocated)
{
boundTextureIndex_ = index;
return;
}
boundTextureIndex_ = fallbackTextureIndex_;
}
int VulkanBootstrapApp::getCurrentTexture() const
{
return boundTextureIndex_;
}
void VulkanBootstrapApp::setTextureLinearFiltering(int index, bool enabled)
{
if (index < 0 || index >= static_cast<int>(kMaxTextures) || !textureSlots_[index].allocated)
{
return;
}
if (textureSlots_[index].linearFiltering == enabled)
{
return;
}
textureSlots_[index].linearFiltering = enabled;
updateTextureDescriptor(index);
}
void VulkanBootstrapApp::setTextureClampAddress(int index, bool enabled)
{
if (index < 0 || index >= static_cast<int>(kMaxTextures) || !textureSlots_[index].allocated)
{
return;
}
if (textureSlots_[index].clampAddress == enabled)
{
return;
}
textureSlots_[index].clampAddress = enabled;
updateTextureDescriptor(index);
}
void VulkanBootstrapApp::uploadTextureData(
int slotIndex,
uint32_t width,
uint32_t height,
const void *pixelData)
{
if (slotIndex < 0 || slotIndex >= static_cast<int>(kMaxTextures) || pixelData == nullptr)
{
return;
}
TextureSlot &slot = textureSlots_[slotIndex];
if (!slot.allocated)
{
return;
}
const VkDeviceSize imageSize = static_cast<VkDeviceSize>(width) * height * 4;
ensureStagingBuffer(imageSize);
void *mappedMemory = nullptr;
if (vkMapMemory(device_, stagingBufferMemory_, 0, imageSize, 0, &mappedMemory) != VK_SUCCESS)
{
throw std::runtime_error("vkMapMemory failed for staging buffer");
}
std::memcpy(mappedMemory, pixelData, static_cast<size_t>(imageSize));
vkUnmapMemory(device_, stagingBufferMemory_);
destroyTextureSlotResources(slotIndex, false);
VkImageCreateInfo imageInfo {};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.extent.width = width;
imageInfo.extent.height = height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
if (vkCreateImage(device_, &imageInfo, nullptr, &slot.image) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateImage failed for texture");
}
VkMemoryRequirements memoryRequirements {};
vkGetImageMemoryRequirements(device_, slot.image, &memoryRequirements);
VkMemoryAllocateInfo allocInfo {};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memoryRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(
memoryRequirements.memoryTypeBits,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
if (vkAllocateMemory(device_, &allocInfo, nullptr, &slot.memory) != VK_SUCCESS)
{
throw std::runtime_error("vkAllocateMemory failed for texture");
}
vkBindImageMemory(device_, slot.image, slot.memory, 0);
VkCommandBuffer commandBuffer = beginOneTimeCommands();
transitionImageLayout(
commandBuffer,
slot.image,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
VkBufferImageCopy region {};
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.imageSubresource.mipLevel = 0;
region.imageSubresource.baseArrayLayer = 0;
region.imageSubresource.layerCount = 1;
region.imageExtent = {width, height, 1};
vkCmdCopyBufferToImage(
commandBuffer,
stagingBuffer_,
slot.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1,
&region);
transitionImageLayout(
commandBuffer,
slot.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
endOneTimeCommands(commandBuffer);
VkImageViewCreateInfo viewInfo {};
viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
viewInfo.image = slot.image;
viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
viewInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
viewInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
viewInfo.subresourceRange.baseMipLevel = 0;
viewInfo.subresourceRange.levelCount = 1;
viewInfo.subresourceRange.baseArrayLayer = 0;
viewInfo.subresourceRange.layerCount = 1;
if (vkCreateImageView(device_, &viewInfo, nullptr, &slot.imageView) != VK_SUCCESS)
{
throw std::runtime_error("vkCreateImageView failed for texture");
}
if (slot.descriptorSet == VK_NULL_HANDLE)
{
VkDescriptorSetAllocateInfo allocSetInfo {};
allocSetInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
allocSetInfo.descriptorPool = descriptorPool_;
allocSetInfo.descriptorSetCount = 1;
allocSetInfo.pSetLayouts = &textureSetLayout_;
if (vkAllocateDescriptorSets(device_, &allocSetInfo, &slot.descriptorSet) != VK_SUCCESS)
{
throw std::runtime_error("vkAllocateDescriptorSets failed for texture");
}
}
slot.width = width;
slot.height = height;
updateTextureDescriptor(slotIndex);
#ifdef _DEBUG
std::fprintf(
stderr,
"[mce_vulkan_boot] Uploaded texture slot %d: %ux%u\n",
slotIndex,
width,
height);
#endif
}
void VulkanBootstrapApp::updateTextureData(
int slotIndex,
int xOffset,
int yOffset,
uint32_t width,
uint32_t height,
const void *pixelData)
{
if (slotIndex < 0 || slotIndex >= static_cast<int>(kMaxTextures) || pixelData == nullptr)
{
return;
}
TextureSlot &slot = textureSlots_[slotIndex];
if (!slot.allocated || slot.image == VK_NULL_HANDLE)
{
return;
}
const VkDeviceSize imageSize = static_cast<VkDeviceSize>(width) * height * 4;
ensureStagingBuffer(imageSize);
void *mappedMemory = nullptr;
if (vkMapMemory(device_, stagingBufferMemory_, 0, imageSize, 0, &mappedMemory) != VK_SUCCESS)
{
throw std::runtime_error("vkMapMemory failed for staging update");
}
std::memcpy(mappedMemory, pixelData, static_cast<size_t>(imageSize));
vkUnmapMemory(device_, stagingBufferMemory_);
VkCommandBuffer commandBuffer = beginOneTimeCommands();
transitionImageLayout(
commandBuffer,
slot.image,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
VkBufferImageCopy region {};
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.imageSubresource.mipLevel = 0;
region.imageSubresource.baseArrayLayer = 0;
region.imageSubresource.layerCount = 1;
region.imageOffset = {xOffset, yOffset, 0};
region.imageExtent = {width, height, 1};
vkCmdCopyBufferToImage(
commandBuffer,
stagingBuffer_,
slot.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1,
&region);
transitionImageLayout(
commandBuffer,
slot.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
endOneTimeCommands(commandBuffer);
}
VkSurfaceFormatKHR VulkanBootstrapApp::chooseSwapSurfaceFormat(
const std::vector<VkSurfaceFormatKHR> &availableFormats) const
{
// Prefer RGBA to match our texture upload format (R8G8B8A8)
for (const VkSurfaceFormatKHR &format : availableFormats)
{
if (format.format == VK_FORMAT_R8G8B8A8_UNORM &&
format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR)
{
return format;
}
}
// Fallback to BGRA (common on MoltenVK/macOS)
for (const VkSurfaceFormatKHR &format : availableFormats)
{
if (format.format == VK_FORMAT_B8G8R8A8_UNORM &&
format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR)
{
return format;
}
}
return availableFormats.front();
}
VkPresentModeKHR VulkanBootstrapApp::chooseSwapPresentMode(
const std::vector<VkPresentModeKHR> &availablePresentModes) const
{
const auto iterator = std::find(
availablePresentModes.begin(),
availablePresentModes.end(),
VK_PRESENT_MODE_MAILBOX_KHR);
if (iterator != availablePresentModes.end())
{
return *iterator;
}
return VK_PRESENT_MODE_FIFO_KHR;
}
VkExtent2D VulkanBootstrapApp::chooseSwapExtent(const VkSurfaceCapabilitiesKHR &capabilities) const
{
if (capabilities.currentExtent.width != std::numeric_limits<uint32_t>::max())
{
return capabilities.currentExtent;
}
int framebufferWidth = 0;
int framebufferHeight = 0;
glfwGetFramebufferSize(window_, &framebufferWidth, &framebufferHeight);
VkExtent2D actualExtent {
static_cast<uint32_t>(framebufferWidth),
static_cast<uint32_t>(framebufferHeight)
};
actualExtent.width = std::clamp(
actualExtent.width,
capabilities.minImageExtent.width,
capabilities.maxImageExtent.width);
actualExtent.height = std::clamp(
actualExtent.height,
capabilities.minImageExtent.height,
capabilities.maxImageExtent.height);
return actualExtent;
}
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