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121 lines
3.2 KiB
Markdown
121 lines
3.2 KiB
Markdown
# Vk-Bootstrap
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A Vulkan utility library meant to jump start any Vulkan Application
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This library simplifies the tedious process of:
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* Instance Creation
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* Picking a Physical Device
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* Device Creation
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* Getting Queues
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* Swapchain Creation
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It also adds several conveniences for:
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* Enabling validation layers
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* Adding a debug callback
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* Select a gpu based on a set of criteria like features, extensions, memory, etc.
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Read the [Getting Started](docs/getting_started.md) guide for a quick start on using `vk-bootstrap`
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## Basic Usage
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```cpp
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#include "VkBootstrap.h"
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void init_vulkan () {
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vkb::InstanceBuilder builder;
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auto inst_ret = builder.set_app_name ("Example Vulkan Application")
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.request_validation_layers ()
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.use_default_debug_messenger ()
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.build ();
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if (!inst_ret) {
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// error
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}
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vkb::Instance vkb_inst = inst_ret.value ();
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vkb::PhysicalDeviceSelector selector{ vkb_inst };
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auto phys_ret = selector.set_surface (/* from user created window*/)
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.set_minimum_version (1, 1) // require a vulkan 1.1 capable device
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.require_dedicated_transfer_queue ()
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.select ();
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if (!phys_ret) {
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// error
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}
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vkb::DeviceBuilder device_builder{ phys_ret.value () };
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// automatically propagate needed data from instance & physical device
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auto dev_ret = device_builder.build ();
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if (!dev_ret) {
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// error
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}
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vkb::Device vkb_device = dev_ret.value ();
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// Get the VkDevice handle used in the rest of a vulkan application
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VkDevice device = vkb_device.device;
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// Get the graphics queue with a helper function
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auto graphics_queue_ret = vkb_device.get_queue (vkb::QueueType::graphics);
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if (!graphics_queue_ret) {
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// error
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}
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VkQueue graphics_queue = graphics_queue_ret.value ();
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// Turned 400-500 lines of boilerplate into less than fifty.
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}
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```
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See `example/triangle.cpp` for an example that renders a triangle to the screen.
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## Setting up vk-bootstrap
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### Simple
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This library has no external dependencies beyond C++11 and the standard library.
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Simply copy the `src/VkBootstrap.h` and `src/VkBootstrap.cpp` files into your project and compile them as you normally would
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### With git-submodule + CMake
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Add this project as a git-submodule
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```bash
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git submodule add https://github.com/charles-lunarg/vk-bootstrap
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```
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With CMake, add the project as a subdirectory
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```cmake
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add_subdirectory(vk-bootstrap)
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target_link_libraries(your_application_name vk-bootstrap)
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```
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### Manually Building
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```bash
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git clone https://github.com/charles-lunarg/vk-bootstrap
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cd vk-bootstrap
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mkdir build
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cd build
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cmake ..
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```
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## Testing
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To test, glfw and Catch2 are automatically included using git submodules.
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In the project directory, run the following to get the required dependencies to test.
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```bash
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git submodule update --init
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```
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Tests will be enabled by default if you open this project standalone. If you include this project as a subdirectory,
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you can force enable tests by adding `-DVK_BOOTSTRAP_TEST` to the cmake command line arguments
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```bash
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cmake ../path/to/your-project/ -DVK_BOOTSTRAP_TEST=ON
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```
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