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完成在Android上渲染三角形

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xsl
2025-10-18 21:13:03 +08:00
parent 2db7194305
commit 4237213658
7 changed files with 59 additions and 34 deletions
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vulkan/Application.cpp
+6 -32
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@@ -181,47 +181,22 @@ void Application::createLogicalDevice() {
vkGetDeviceQueue(device, indices.presentFamily.value(), 0, &presentQueue);
}
inline VkExtent2D choose_extent(
VkExtent2D request_extent,
const VkExtent2D &min_image_extent,
const VkExtent2D &max_image_extent,
const VkExtent2D &current_extent)
{
if (current_extent.width == 0xFFFFFFFF)
{
return request_extent;
}
if (request_extent.width < 1 || request_extent.height < 1)
{
logOut << "(Swapchain) Image extent ("<< request_extent.width << ", " << request_extent.height << ") not supported. Selecting ("<< current_extent.width << ", " << current_extent.height << ")." << std::endl;
return current_extent;
}
request_extent.width = std::max(request_extent.width, min_image_extent.width);
request_extent.width = std::min(request_extent.width, max_image_extent.width);
request_extent.height = std::max(request_extent.height, min_image_extent.height);
request_extent.height = std::min(request_extent.height, max_image_extent.height);
return request_extent;
}
void Application::createSwapChain() {
// 选择交换链格式、颜色空间和分辨率
VkSurfaceFormatKHR surfaceFormat = { VK_FORMAT_B8G8R8A8_SRGB, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR };
VkSurfaceFormatKHR surfaceFormat = { VK_FORMAT_R8G8B8A8_SRGB, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR };
VkPresentModeKHR presentMode = VK_PRESENT_MODE_FIFO_KHR;
VkExtent2D extent = { 1, 1 };
VkSurfaceCapabilitiesKHR surface_capabilities{};
vkGetPhysicalDeviceSurfaceCapabilitiesKHR(this->physicalDevice, this->surface, &surface_capabilities);
extent = choose_extent(extent, surface_capabilities.minImageExtent, surface_capabilities.maxImageExtent, surface_capabilities.currentExtent);
VkExtent2D extent = surface_capabilities.currentExtent;
uint32_t imageCount = 2;
// 创建交换链
VkSwapchainCreateInfoKHR createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
createInfo.surface = surface;
createInfo.minImageCount = 2; // 双缓冲
createInfo.minImageCount = imageCount; // 双缓冲
createInfo.imageFormat = surfaceFormat.format;
createInfo.imageColorSpace = surfaceFormat.colorSpace;
createInfo.imageExtent = extent;
@@ -252,8 +227,7 @@ void Application::createSwapChain() {
throw std::runtime_error("failed to create swap chain!");
}
// 获取交换链图像
uint32_t imageCount;
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, nullptr);
swapChainImages.resize(imageCount);
vkGetSwapchainImagesKHR(device, swapChain, &imageCount, swapChainImages.data());