abdelrahman/how-to-vulkan
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Add swapchain recreation. Needs debugging though

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Abdelrahman Said
2026-06-21 20:51:46 +01:00
parent ef12ba03d8
commit 2cdfcde5a3
1 changed files with 83 additions and 3 deletions
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main.cpp
+83 -3
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@@ -170,8 +170,8 @@ int main() {
check(volkInitialize());
display_scale = SDL_GetDisplayContentScale(SDL_GetPrimaryDisplay());
window = SDL_CreateWindow("How To Vulkan", (i32)(display_scale * 1920),
(i32)(display_scale * 1080), SDL_WINDOW_VULKAN);
window = SDL_CreateWindow("How To Vulkan", (i32)(display_scale * 1920), (i32)(display_scale * 1080),
SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE);
check(window != nullptr, EXIT_CODE_WINDOW_CREATION_FAILED);
// }}}
@@ -1373,11 +1373,91 @@ int main() {
}
}
// }}}
// {{{ Recreate Swapchain If Needed
if (update_swapchain) {
// TODO (Abdelrahman): This doesn't work well. Debug it.
update_swapchain = false;
check(vkDeviceWaitIdle(device));
check(vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physical_device, surface, &surface_caps));
// Create new swapchain
swapchain_create_info.oldSwapchain = swapchain;
swapchain_create_info.imageExtent = { (u32)window_size.x, (u32)window_size.y };
check(vkCreateSwapchainKHR(device, &swapchain_create_info, NULL, &swapchain));
// Clean old image views
for (u32 i = 0; i < swapchain_image_count; ++i) {
vkDestroyImageView(device, swapchain_views[i], NULL);
}
// Clean old render_completed semaphores
for (u32 i = 0; i < swapchain_image_count; ++i) {
vkDestroySemaphore(device, render_completed_semaphores[i], NULL);
}
// Get new swapchain images
check(vkGetSwapchainImagesKHR(device, swapchain, &swapchain_image_count, nullptr));
if (swapchain_image_count != wapp_array_count(swapchain_images)) {
swapchain_images = wapp_array_alloc_capacity(VkImage, &arena, swapchain_image_count, ARRAY_INIT_FILLED);
swapchain_views = wapp_array_alloc_capacity(VkImageView, &arena, swapchain_image_count, ARRAY_INIT_FILLED);
render_completed_semaphores = wapp_array_alloc_capacity(VkSemaphore, &arena, swapchain_image_count, ARRAY_INIT_FILLED);
}
check(swapchain_images != nullptr, EXIT_CODE_ALLOCATION_FAILURE);
check(vkGetSwapchainImagesKHR(device, swapchain, &swapchain_image_count, swapchain_images));
check(swapchain_views != nullptr, EXIT_CODE_ALLOCATION_FAILURE);
for (u32 i = 0; i < swapchain_image_count; ++i) {
VkImageViewCreateInfo view_create_info = {};
view_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view_create_info.image = swapchain_images[i];
view_create_info.viewType = VK_IMAGE_VIEW_TYPE_2D;
view_create_info.format = image_format;
view_create_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
view_create_info.subresourceRange.levelCount = 1;
view_create_info.subresourceRange.layerCount = 1;
check(vkCreateImageView(device, &view_create_info, nullptr, &swapchain_views[i]));
}
check(render_completed_semaphores != nullptr, EXIT_CODE_SYNC_OBJ_CREATE_FAILED);
for (u32 i = 0; i < swapchain_image_count; ++i) {
check(vkCreateSemaphore(device, &semaphore_create_info, NULL, &render_completed_semaphores[i]));
}
vkDestroySwapchainKHR(device, swapchain_create_info.oldSwapchain, NULL);
vmaDestroyImage(allocator, depth_image, depth_allocation);
vkDestroyImageView(device, depth_view, NULL);
depth_image_create_info.extent = { (u32)window_size.x, (u32)window_size.y, 1 };
VmaAllocationCreateInfo alloc_create_info = {};
alloc_create_info.flags = VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
alloc_create_info.usage = VMA_MEMORY_USAGE_AUTO;
check(vmaCreateImage(allocator, &depth_image_create_info, &alloc_create_info, &depth_image,
&depth_allocation, nullptr));
VkImageViewCreateInfo view_create_info = {};
view_create_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
view_create_info.image = depth_image;
view_create_info.viewType = VK_IMAGE_VIEW_TYPE_2D;
view_create_info.format = depth_format;
view_create_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
view_create_info.subresourceRange.levelCount = 1;
view_create_info.subresourceRange.layerCount = 1;
check(vkCreateImageView(device, &view_create_info, NULL, &depth_view));
}
// }}}
}
// }}}
// {{{ Cleanup
check(vkQueueWaitIdle(queue));
check(vkDeviceWaitIdle(device));
vkDestroyPipeline(device, graphics_pipeline, NULL);
vkDestroyPipelineLayout(device, graphics_pipeline_layout, NULL);