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This commit is contained in:
@@ -20,12 +20,14 @@
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*/
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#include "texture_loading.h"
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TextureLoading* TextureLoading::loadTextIns = nullptr;
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TextureLoading::TextureLoading()
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{
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zoom = -2.5f;
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rotation = {0.0f, 15.0f, 0.0f};
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title = "Texture loading";
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loadTextIns = this;
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}
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TextureLoading::~TextureLoading()
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@@ -463,6 +465,47 @@ void TextureLoading::build_command_buffers()
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}
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}
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// 生成简单的测试图像数据（红绿蓝三色条）
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std::vector<uint8_t> generateSimpleTestImage(int width, int height, int* outRowStride = nullptr) {
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int rowStride = width * 4; // RGBA 每个像素4字节
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if (outRowStride) {
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*outRowStride = rowStride;
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}
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size_t dataSize = rowStride * height;
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std::vector<uint8_t> imageData(dataSize, 0);
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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int pixelOffset = y * rowStride + x * 4;
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// 简单分成三个区域：红、绿、蓝
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if (x < width / 3) {
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// 红色区域
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imageData[pixelOffset] = 255; // R
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imageData[pixelOffset + 1] = 0; // G
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imageData[pixelOffset + 2] = 0; // B
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}
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else if (x < 2 * width / 3) {
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// 绿色区域
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imageData[pixelOffset] = 0; // R
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imageData[pixelOffset + 1] = 255; // G
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imageData[pixelOffset + 2] = 0; // B
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}
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else {
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// 蓝色区域
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imageData[pixelOffset] = 0; // R
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imageData[pixelOffset + 1] = 0; // G
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imageData[pixelOffset + 2] = 255; // B
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}
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imageData[pixelOffset + 3] = 255; // A (完全不透明)
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}
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}
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return imageData;
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}
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void TextureLoading::draw()
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{
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ApiVulkanSample::prepare_frame();
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@@ -721,7 +764,21 @@ bool TextureLoading::prepare(const vkb::ApplicationOptions &options)
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{
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return false;
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}
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load_texture();
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//load_texture();
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int width = 640;
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int height = 480;
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int rowStride;
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auto testImage = generateSimpleTestImage(width, height, &rowStride);
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size_t dataSize = testImage.size();
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std::cout << "Generated test image: " << width << "x" << height << std::endl;
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std::cout << "Row stride: " << rowStride << std::endl;
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std::cout << "Data size: " << dataSize << " bytes" << std::endl;
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processWithVulkan(testImage.data(), width, height, 1, rowStride, dataSize);
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generate_quad();
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prepare_uniform_buffers();
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setup_descriptor_set_layout();
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@@ -739,6 +796,12 @@ void TextureLoading::render(float delta_time)
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{
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return;
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}
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if (texture.width == 0)
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{
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return;
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}
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draw();
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}
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@@ -762,3 +825,300 @@ std::unique_ptr<vkb::Application> create_texture_loading()
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{
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return std::make_unique<TextureLoading>();
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}
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void TextureLoadProcessWithVulkan(uint8_t* data, int width, int height, int format, int rowStride, size_t dataSize)
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{
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TextureLoading::Get()->processWithVulkan(data, width, height, format, rowStride, dataSize);
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}
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void TextureLoading::processWithVulkan(uint8_t* data, int width, int height, int format, int rowStride, size_t dataSize)
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{
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Texture& out_texture = texture; //cam_text;
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VkDevice& device = get_device().get_handle();
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const VkPhysicalDevice& physicalDevice = get_device().get_gpu().get_handle();
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// 检查是否需要创建新纹理
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if (out_texture.image == VK_NULL_HANDLE) {
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createTexture(device, physicalDevice, width, height, format, out_texture);
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}
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const VkCommandPool& commandPool = get_device().get_command_pool().get_handle();
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// 更新纹理数据
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updateTexture(device, physicalDevice, commandPool, queue, data, width, height,
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rowStride, dataSize, out_texture);
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}
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void TextureLoading::createTexture(VkDevice device, VkPhysicalDevice physicalDevice,
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int width, int height, int format, Texture& texture) {
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texture.width = width;
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texture.height = height;
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texture.mip_levels = 1;
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// 创建图像
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VkImageCreateInfo imageInfo = {};
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imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
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imageInfo.imageType = VK_IMAGE_TYPE_2D;
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imageInfo.format = VK_FORMAT_R8G8B8A8_UNORM; // 匹配 RGBA_8888
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imageInfo.extent.width = width;
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imageInfo.extent.height = height;
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imageInfo.extent.depth = 1;
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imageInfo.mipLevels = 1;
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imageInfo.arrayLayers = 1;
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imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
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imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
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imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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if (vkCreateImage(device, &imageInfo, nullptr, &texture.image) != VK_SUCCESS) {
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throw std::runtime_error("Failed to create image!");
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}
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// 分配内存
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VkMemoryRequirements memRequirements;
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vkGetImageMemoryRequirements(device, texture.image, &memRequirements);
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VkMemoryAllocateInfo allocInfo = {};
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allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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allocInfo.allocationSize = memRequirements.size;
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allocInfo.memoryTypeIndex = findMemoryType(physicalDevice,
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memRequirements.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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if (vkAllocateMemory(device, &allocInfo, nullptr, &texture.device_memory) != VK_SUCCESS) {
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throw std::runtime_error("Failed to allocate image memory!");
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}
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vkBindImageMemory(device, texture.image, texture.device_memory, 0);
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// 创建图像视图
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VkImageViewCreateInfo viewInfo = {};
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viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
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viewInfo.image = texture.image;
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viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
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viewInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
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viewInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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viewInfo.subresourceRange.baseMipLevel = 0;
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viewInfo.subresourceRange.levelCount = 1;
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viewInfo.subresourceRange.baseArrayLayer = 0;
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viewInfo.subresourceRange.layerCount = 1;
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if (vkCreateImageView(device, &viewInfo, nullptr, &texture.view) != VK_SUCCESS) {
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throw std::runtime_error("Failed to create texture image view!");
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}
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// 创建采样器
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VkSamplerCreateInfo samplerInfo = {};
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samplerInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
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samplerInfo.magFilter = VK_FILTER_LINEAR;
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samplerInfo.minFilter = VK_FILTER_LINEAR;
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samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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samplerInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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samplerInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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samplerInfo.anisotropyEnable = VK_FALSE;
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samplerInfo.maxAnisotropy = 1.0f;
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samplerInfo.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK;
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samplerInfo.unnormalizedCoordinates = VK_FALSE;
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samplerInfo.compareEnable = VK_FALSE;
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samplerInfo.compareOp = VK_COMPARE_OP_ALWAYS;
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samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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samplerInfo.mipLodBias = 0.0f;
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samplerInfo.minLod = 0.0f;
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samplerInfo.maxLod = 0.0f;
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if (vkCreateSampler(device, &samplerInfo, nullptr, &texture.sampler) != VK_SUCCESS) {
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throw std::runtime_error("Failed to create texture sampler!");
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}
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texture.image_layout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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}
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void TextureLoading::updateTexture(VkDevice device, VkPhysicalDevice physicalDevice,
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VkCommandPool commandPool, VkQueue queue,
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uint8_t* data, int width, int height,
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int rowStride, size_t dataSize, Texture& texture) {
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// 创建临时 staging buffer
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VkBuffer stagingBuffer;
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VkDeviceMemory stagingBufferMemory;
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VkBufferCreateInfo bufferInfo = {};
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bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
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bufferInfo.size = dataSize;
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bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
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bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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if (vkCreateBuffer(device, &bufferInfo, nullptr, &stagingBuffer) != VK_SUCCESS) {
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throw std::runtime_error("Failed to create staging buffer!");
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}
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VkMemoryRequirements memRequirements;
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vkGetBufferMemoryRequirements(device, stagingBuffer, &memRequirements);
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VkMemoryAllocateInfo allocInfo = {};
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allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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allocInfo.allocationSize = memRequirements.size;
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allocInfo.memoryTypeIndex = findMemoryType(physicalDevice,
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memRequirements.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
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VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
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if (vkAllocateMemory(device, &allocInfo, nullptr, &stagingBufferMemory) != VK_SUCCESS) {
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throw std::runtime_error("Failed to allocate staging buffer memory!");
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}
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vkBindBufferMemory(device, stagingBuffer, stagingBufferMemory, 0);
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// 复制数据到 staging buffer
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void* mappedData;
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vkMapMemory(device, stagingBufferMemory, 0, dataSize, 0, &mappedData);
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// 处理行步长不一致的情况
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if (rowStride == width * 4) {
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// 行步长匹配，直接复制
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memcpy(mappedData, data, dataSize);
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}
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else {
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// 需要逐行复制，处理 padding
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uint8_t* dst = static_cast<uint8_t*>(mappedData);
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const uint8_t* src = data;
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size_t dstRowStride = width * 4;
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for (int y = 0; y < height; y++) {
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memcpy(dst, src, dstRowStride);
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dst += dstRowStride;
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src += rowStride;
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}
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}
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vkUnmapMemory(device, stagingBufferMemory);
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// 创建命令缓冲区
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VkCommandBuffer commandBuffer = beginSingleTimeCommands(device, commandPool);
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// 转换图像布局为传输目标
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transitionImageLayout(commandBuffer, texture.image,
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VK_IMAGE_LAYOUT_UNDEFINED,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
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// 复制 buffer 到 image
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VkBufferImageCopy region = {};
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region.bufferOffset = 0;
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region.bufferRowLength = 0;
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region.bufferImageHeight = 0;
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region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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region.imageSubresource.mipLevel = 0;
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region.imageSubresource.baseArrayLayer = 0;
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region.imageSubresource.layerCount = 1;
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region.imageOffset = { 0, 0, 0 };
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region.imageExtent = { static_cast<uint32_t>(width),
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static_cast<uint32_t>(height), 1 };
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vkCmdCopyBufferToImage(commandBuffer, stagingBuffer, texture.image,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion);
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// 转换图像布局为着色器读取
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transitionImageLayout(commandBuffer, texture.image,
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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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endSingleTimeCommands(device, commandPool, queue, commandBuffer);
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// 清理临时资源
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vkDestroyBuffer(device, stagingBuffer, nullptr);
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vkFreeMemory(device, stagingBufferMemory, nullptr);
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texture.image_layout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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}
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// 辅助函数
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uint32_t TextureLoading::findMemoryType(VkPhysicalDevice physicalDevice, uint32_t typeFilter,
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VkMemoryPropertyFlags properties) {
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VkPhysicalDeviceMemoryProperties memProperties;
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vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memProperties);
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for (uint32_t i = 0; i < memProperties.memoryTypeCount; i++) {
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if ((typeFilter & (1 << i)) &&
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(memProperties.memoryTypes[i].propertyFlags & properties) == properties) {
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return i;
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}
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}
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throw std::runtime_error("Failed to find suitable memory type!");
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}
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VkCommandBuffer TextureLoading::beginSingleTimeCommands(VkDevice device, VkCommandPool commandPool) {
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VkCommandBufferAllocateInfo allocInfo = {};
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allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
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allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
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allocInfo.commandPool = commandPool;
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allocInfo.commandBufferCount = 1;
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VkCommandBuffer commandBuffer;
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vkAllocateCommandBuffers(device, &allocInfo, &commandBuffer);
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VkCommandBufferBeginInfo beginInfo = {};
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beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
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beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
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vkBeginCommandBuffer(commandBuffer, &beginInfo);
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return commandBuffer;
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}
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void TextureLoading::endSingleTimeCommands(VkDevice device, VkCommandPool commandPool,
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VkQueue queue, VkCommandBuffer commandBuffer) {
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vkEndCommandBuffer(commandBuffer);
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VkSubmitInfo submitInfo = {};
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submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
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submitInfo.commandBufferCount = 1;
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submitInfo.pCommandBuffers = &commandBuffer;
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vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE);
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vkQueueWaitIdle(queue);
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vkFreeCommandBuffers(device, commandPool, 1, &commandBuffer);
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}
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void TextureLoading::transitionImageLayout(VkCommandBuffer commandBuffer, VkImage image,
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VkImageLayout oldLayout, VkImageLayout newLayout) {
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VkImageMemoryBarrier barrier = {};
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barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
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barrier.oldLayout = oldLayout;
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barrier.newLayout = newLayout;
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barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
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barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
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barrier.image = image;
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barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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barrier.subresourceRange.baseMipLevel = 0;
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barrier.subresourceRange.levelCount = 1;
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barrier.subresourceRange.baseArrayLayer = 0;
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barrier.subresourceRange.layerCount = 1;
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VkPipelineStageFlags sourceStage;
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VkPipelineStageFlags destinationStage;
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if (oldLayout == VK_IMAGE_LAYOUT_UNDEFINED &&
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newLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL) {
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barrier.srcAccessMask = 0;
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barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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sourceStage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT;
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destinationStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
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}
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else if (oldLayout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL &&
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newLayout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) {
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barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
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sourceStage = VK_PIPELINE_STAGE_TRANSFER_BIT;
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destinationStage = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
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}
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else {
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throw std::invalid_argument("Unsupported layout transition!");
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}
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vkCmdPipelineBarrier(commandBuffer, sourceStage, destinationStage, 0,
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0, nullptr, 0, nullptr, 1, &barrier);
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}
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@@ -47,7 +47,10 @@ class TextureLoading : public ApiVulkanSample
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VkImageView view;
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uint32_t width, height;
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uint32_t mip_levels;
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} texture;
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};
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Texture texture = {0};
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Texture cam_text = {0};
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std::unique_ptr<vkb::core::BufferC> vertex_buffer;
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std::unique_ptr<vkb::core::BufferC> index_buffer;
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@@ -71,7 +74,10 @@ class TextureLoading : public ApiVulkanSample
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VkPipelineLayout pipeline_layout;
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VkDescriptorSet descriptor_set;
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VkDescriptorSetLayout descriptor_set_layout;
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static TextureLoading* Get() {
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return loadTextIns;
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}
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static TextureLoading* loadTextIns;
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TextureLoading();
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~TextureLoading();
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virtual void request_gpu_features(vkb::PhysicalDevice &gpu) override;
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@@ -90,6 +96,22 @@ class TextureLoading : public ApiVulkanSample
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virtual void render(float delta_time) override;
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virtual void view_changed() override;
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virtual void on_update_ui_overlay(vkb::Drawer &drawer) override;
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public:
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|
||||
void processWithVulkan(uint8_t* data, int width, int height, int format, int rowStride, size_t dataSize);
|
||||
|
||||
void createTexture(VkDevice device, VkPhysicalDevice physicalDevice, int width, int height, int format, Texture& texture);
|
||||
|
||||
void updateTexture(VkDevice device, VkPhysicalDevice physicalDevice, VkCommandPool commandPool, VkQueue queue, uint8_t* data, int width, int height, int rowStride, size_t dataSize, Texture& texture);
|
||||
|
||||
// 辅助函数
|
||||
uint32_t findMemoryType(VkPhysicalDevice physicalDevice, uint32_t typeFilter, VkMemoryPropertyFlags properties);
|
||||
VkCommandBuffer beginSingleTimeCommands(VkDevice device, VkCommandPool commandPool);
|
||||
void endSingleTimeCommands(VkDevice device, VkCommandPool commandPool, VkQueue queue, VkCommandBuffer commandBuffer);
|
||||
void transitionImageLayout(VkCommandBuffer commandBuffer, VkImage image, VkImageLayout oldLayout, VkImageLayout newLayout);
|
||||
|
||||
};
|
||||
|
||||
std::unique_ptr<vkb::Application> create_texture_loading();
|
||||
|
||||
Reference in New Issue
Block a user