3 Instructions for building this repository on Linux, Windows, Android, and MacOS.
7 1. [Contributing](#contributing-to-the-repository)
8 1. [Repository Content](#repository-content)
9 1. [Repository Set-Up](#repository-set-up)
10 1. [Windows Build](#building-on-windows)
11 1. [Linux Build](#building-on-linux)
12 1. [Android Build](#building-on-android)
13 1. [MacOS build](#building-on-macos)
15 ## Contributing to the Repository
17 If you intend to contribute, the preferred work flow is for you to develop
18 your contribution in a fork of this repository in your GitHub account and then
19 submit a pull request. Please see the [CONTRIBUTING.md](CONTRIBUTING.md) file
20 in this repository for more details.
24 This repository contains the source code necessary to build the following components:
27 - vkcube and vkcubepp demos
32 The `install` target installs the following files under the directory
33 indicated by *install_dir*:
35 - *install_dir*`/bin` : The vulkaninfo, vkcube and vkcubepp executables
36 - *install_dir*`/lib` : The mock ICD library and JSON (Windows) (If INSTALL_ICD=ON)
37 - *install_dir*`/share/vulkan/icd.d` : mock ICD JSON (Linux/MacOS) (If INSTALL_ICD=ON)
39 The `uninstall` target can be used to remove the above files from the install
46 This repository does not contain a Vulkan-capable driver. You will need to
47 obtain and install a Vulkan driver from your graphics hardware vendor or from
48 some other suitable source if you intend to run Vulkan applications.
50 ### Download the Repository
52 To create your local git repository:
54 git clone https://github.com/KhronosGroup/Vulkan-Tools.git
56 ### Repository Dependencies
58 This repository attempts to resolve some of its dependencies by using
59 components found from the following places, in this order:
61 1. CMake or Environment variable overrides (e.g., -DVULKAN_HEADERS_INSTALL_DIR)
62 1. LunarG Vulkan SDK, located by the `VULKAN_SDK` environment variable
63 1. System-installed packages, mostly applicable on Linux
65 Dependencies that cannot be resolved by the SDK or installed packages must be
66 resolved with the "install directory" override and are listed below. The
67 "install directory" override can also be used to force the use of a specific
68 version of that dependency.
72 This repository has a required dependency on the
73 [Vulkan Headers repository](https://github.com/KhronosGroup/Vulkan-Headers).
74 You must clone the headers repository and build its `install` target before
75 building this repository. The Vulkan-Headers repository is required because it
76 contains the Vulkan API definition files (registry) that are required to build
77 the mock ICD. You must also take note of the headers install directory and
78 pass it on the CMake command line for building this repository, as described
81 Note that this dependency can be ignored if not building the mock ICD
82 (CMake option: `-DBUILD_ICD=OFF`).
86 This repository has a required dependency on the `glslangValidator` (shader
87 compiler) for compiling the shader programs for the vkcube demos.
89 The CMake code in this repository downloads release binaries of glslang if a
90 build glslang repository is not provided. The glslangValidator is obtained
91 from this set of release binaries.
93 If you don't wish the CMake code to download these binaries, then you must
94 clone the [glslang repository](https://github.com/KhronosGroup/glslang) and
95 build its `install` target. Follow the build instructions in the glslang
96 [README.md](https://github.com/KhronosGroup/glslang/blob/master/README.md)
97 file. Ensure that the `update_glslang_sources.py` script has been run as part
98 of building glslang. You must also take note of the glslang install directory
99 and pass it on the CMake command line for building this repository, as
102 Note that this dependency can be ignored if not building the vkcube demo
103 (CMake option: `-DBUILD_CUBE=OFF`).
105 ### Build and Install Directories
107 A common convention is to place the build directory in the top directory of
108 the repository with a name of `build` and place the install directory as a
109 child of the build directory with the name `install`. The remainder of these
110 instructions follow this convention, although you can use any name for these
111 directories and place them in any location.
113 ### Building Dependent Repositories with Known-Good Revisions
115 There is a Python utility script, `scripts/update_deps.py`, that you can use to
116 gather and build the dependent repositories mentioned above. This script uses
117 information stored in the `scripts/known_good.json` file to check out dependent
118 repository revisions that are known to be compatible with the revision of this
119 repository that you currently have checked out. As such, this script is useful
120 as a quick-start tool for common use cases and default configurations.
122 For all platforms, start with:
124 git clone git@github.com:KhronosGroup/Vulkan-Tools.git
129 For 64-bit Linux and MacOS, continue with:
131 ../scripts/update_deps.py
132 cmake -C helper.cmake ..
135 For 64-bit Windows, continue with:
137 ..\scripts\update_deps.py --arch x64
138 cmake -A x64 -C helper.cmake ..
141 For 32-bit Windows, continue with:
143 ..\scripts\update_deps.py --arch Win32
144 cmake -A Win32 -C helper.cmake ..
147 Please see the more detailed build information later in this file if you have
148 specific requirements for configuring and building these components.
152 - You may need to adjust some of the CMake options based on your platform. See
153 the platform-specific sections later in this document.
154 - The `update_deps.py` script fetches and builds the dependent repositories in
155 the current directory when it is invoked. In this case, they are built in
156 the `build` directory.
157 - The `build` directory is also being used to build this
158 (Vulkan-Tools) repository. But there shouldn't be any conflicts
159 inside the `build` directory between the dependent repositories and the
160 build files for this repository.
161 - The `--dir` option for `update_deps.py` can be used to relocate the
162 dependent repositories to another arbitrary directory using an absolute or
164 - The `update_deps.py` script generates a file named `helper.cmake` and places
165 it in the same directory as the dependent repositories (`build` in this
166 case). This file contains CMake commands to set the CMake `*_INSTALL_DIR`
167 variables that are used to point to the install artifacts of the dependent
168 repositories. You can use this file with the `cmake -C` option to set these
169 variables when you generate your build files with CMake. This lets you avoid
170 entering several `*_INSTALL_DIR` variable settings on the CMake command line.
171 - If using "MINGW" (Git For Windows), you may wish to run
172 `winpty update_deps.py` in order to avoid buffering all of the script's
173 "print" output until the end and to retain the ability to interrupt script
175 - Please use `update_deps.py --help` to list additional options and read the
176 internal documentation in `update_deps.py` for further information.
178 ### Generated source code
180 This repository contains generated source code in the `icd/generated`
181 directory which is not intended to be modified directly. Instead, changes should be
182 made to the corresponding generator in the `scripts` directory. The source files can
183 then be regenerated using `scripts/generate_source.py`:
185 python3 scripts/generate_source.py PATH_TO_VULKAN_HEADERS_REGISTRY_DIR
187 A helper CMake target `VulkanTools_generated_source` is also provided to simplify
188 the invocation of `scripts/generate_source.py` from the build directory:
190 cmake --build . --target VulkanTools_generated_source
194 When generating native platform build files through CMake, several options can
195 be specified to customize the build. Some of the options are binary on/off
196 options, while others take a string as input. The following is a table of all
197 on/off options currently supported by this repository:
199 | Option | Platform | Default | Description |
200 | ------ | -------- | ------- | ----------- |
201 | BUILD_CUBE | All | `ON` | Controls whether or not the vkcube demo is built. |
202 | BUILD_VULKANINFO | All | `ON` | Controls whether or not the vulkaninfo utility is built. |
203 | BUILD_ICD | All | `ON` | Controls whether or not the mock ICD is built. |
204 | INSTALL_ICD | All | `OFF` | Controls whether or not the mock ICD is installed as part of the install target. |
205 | BUILD_WSI_XCB_SUPPORT | Linux | `ON` | Build the components with XCB support. |
206 | BUILD_WSI_XLIB_SUPPORT | Linux | `ON` | Build the components with Xlib support. |
207 | BUILD_WSI_WAYLAND_SUPPORT | Linux | `ON` | Build the components with Wayland support. |
208 | USE_CCACHE | Linux | `OFF` | Enable caching with the CCache program. |
210 The following is a table of all string options currently supported by this repository:
212 | Option | Platform | Default | Description |
213 | ------ | -------- | ------- | ----------- |
214 | CMAKE_OSX_DEPLOYMENT_TARGET | MacOS | `10.12` | The minimum version of MacOS for loader deployment. |
216 These variables should be set using the `-D` option when invoking CMake to
217 generate the native platform files.
219 ## Building On Windows
221 ### Windows Development Environment Requirements
224 - Any Personal Computer version supported by Microsoft
225 - Microsoft [Visual Studio](https://www.visualstudio.com/)
227 - [2013 (update 4)](https://www.visualstudio.com/vs/older-downloads/)
228 - [2015](https://www.visualstudio.com/vs/older-downloads/)
229 - [2017](https://www.visualstudio.com/vs/downloads/)
230 - The Community Edition of each of the above versions is sufficient, as
231 well as any more capable edition.
232 - [CMake 3.10.2](https://cmake.org/files/v3.10/cmake-3.10.2-win64-x64.zip) is recommended.
233 - Use the installer option to add CMake to the system PATH
235 - [Git for Windows](http://git-scm.com/download/win) is a popular solution
237 - Some IDEs (e.g., [Visual Studio](https://www.visualstudio.com/),
238 [GitHub Desktop](https://desktop.github.com/)) have integrated
241 ### Windows Build - Microsoft Visual Studio
243 The general approach is to run CMake to generate the Visual Studio project
244 files. Then either run CMake with the `--build` option to build from the
245 command line or use the Visual Studio IDE to open the generated solution and
246 work with the solution interactively.
248 #### Windows Quick Start
253 cmake -A x64 -DVULKAN_HEADERS_INSTALL_DIR=absolute_path_to_install_dir
256 The above commands instruct CMake to find and use the default Visual Studio
257 installation to generate a Visual Studio solution and projects for the x64
258 architecture. The second CMake command builds the Debug (default)
259 configuration of the solution.
261 See below for the details.
263 #### Use `CMake` to Create the Visual Studio Project Files
265 Change your current directory to the top of the cloned repository directory,
266 create a build directory and generate the Visual Studio project files:
271 cmake -A x64 -DVULKAN_HEADERS_INSTALL_DIR=absolute_path_to_install_dir
273 > Note: The `..` parameter tells `cmake` the location of the top of the
274 > repository. If you place your build directory someplace else, you'll need to
275 > specify the location of the repository top differently.
277 The `-A` option is used to select either the "Win32" or "x64" architecture.
279 If a generator for a specific version of Visual Studio is required, you can
280 specify it for Visual Studio 2015, for example, with:
282 64-bit: -G "Visual Studio 14 2015 Win64"
283 32-bit: -G "Visual Studio 14 2015"
285 See this [list](#cmake-visual-studio-generators) of other possible generators
288 When generating the project files, the absolute path to a Vulkan-Headers
289 install directory must be provided. This can be done by setting the
290 `VULKAN_HEADERS_INSTALL_DIR` environment variable or by setting the
291 `VULKAN_HEADERS_INSTALL_DIR` CMake variable with the `-D` CMake option. In
292 either case, the variable should point to the installation directory of a
293 Vulkan-Headers repository built with the install target.
295 The above steps create a Windows solution file named
296 `Vulkan-Tools.sln` in the build directory.
298 At this point, you can build the solution from the command line or open the
299 generated solution with Visual Studio.
301 #### Build the Solution From the Command Line
303 While still in the build directory:
307 to build the Debug configuration (the default), or:
309 cmake --build . --config Release
311 to make a Release build.
313 #### Build the Solution With Visual Studio
315 Launch Visual Studio and open the "Vulkan-Tools.sln" solution file in the
316 build folder. You may select "Debug" or "Release" from the Solution
317 Configurations drop-down list. Start a build by selecting the Build->Build
320 #### Windows Install Target
322 The CMake project also generates an "install" target that you can use to copy
323 the primary build artifacts to a specific location using a "bin, include, lib"
324 style directory structure. This may be useful for collecting the artifacts and
325 providing them to another project that is dependent on them.
327 The default location is `$CMAKE_BINARY_DIR\install`, but can be changed with
328 the `CMAKE_INSTALL_PREFIX` variable when first generating the project build
331 You can build the install target from the command line with:
333 cmake --build . --config Release --target install
335 or build the `INSTALL` target from the Visual Studio solution explorer.
337 #### Using a Loader Built from a Repository
339 If you do need to build and use your own loader, build the Vulkan-Loader
340 repository with the install target and modify your CMake invocation to add the
341 location of the loader's install directory:
343 cmake -A x64 -DVULKAN_HEADERS_INSTALL_DIR=absolute_path_to_install_dir \
344 -DVULKAN_LOADER_INSTALL_DIR=absolute_path_to_install_dir ..
346 #### Using glslang Built from a Repository
348 If you do need to build and use your own glslang, build the glslang repository
349 with the install target and modify your CMake invocation to add the location
350 of the glslang's install directory:
352 cmake -A x64 -DVULKAN_HEADERS_INSTALL_DIR=absolute_path_to_install_dir \
353 -DGLSLANG_INSTALL_DIR=absolute_path_to_install_dir ..
357 #### CMake Visual Studio Generators
359 The chosen generator should match one of the Visual Studio versions that you
360 have installed. Generator strings that correspond to versions of Visual Studio
363 | Build Platform | 64-bit Generator | 32-bit Generator |
364 |------------------------------|-------------------------------|-------------------------|
365 | Microsoft Visual Studio 2013 | "Visual Studio 12 2013 Win64" | "Visual Studio 12 2013" |
366 | Microsoft Visual Studio 2015 | "Visual Studio 14 2015 Win64" | "Visual Studio 14 2015" |
367 | Microsoft Visual Studio 2017 | "Visual Studio 15 2017 Win64" | "Visual Studio 15 2017" |
371 ### Linux Build Requirements
373 This repository has been built and tested on the two most recent Ubuntu LTS
374 versions. Currently, the oldest supported version is Ubuntu 16.04, meaning
375 that the minimum officially supported C++11 compiler version is GCC 5.4.0,
376 although earlier versions may work. It should be straightforward to adapt this
377 repository to other Linux distributions.
379 [CMake 3.10.2](https://cmake.org/files/v3.10/cmake-3.10.2-Linux-x86_64.tar.gz) is recommended.
381 #### Required Package List
383 sudo apt-get install git cmake build-essential libx11-xcb-dev \
384 libxkbcommon-dev libwayland-dev libxrandr-dev
388 The general approach is to run CMake to generate make files. Then either run
389 CMake with the `--build` option or `make` to build from the command line.
391 #### Linux Quick Start
396 cmake -DVULKAN_HEADERS_INSTALL_DIR=absolute_path_to_install_dir ..
399 See below for the details.
401 #### Use CMake to Create the Make Files
403 Change your current directory to the top of the cloned repository directory,
404 create a build directory and generate the make files.
409 cmake -DCMAKE_BUILD_TYPE=Debug \
410 -DVULKAN_HEADERS_INSTALL_DIR=absolute_path_to_install_dir \
411 -DCMAKE_INSTALL_PREFIX=install ..
413 > Note: The `..` parameter tells `cmake` the location of the top of the
414 > repository. If you place your `build` directory someplace else, you'll need
415 > to specify the location of the repository top differently.
417 Use `-DCMAKE_BUILD_TYPE` to specify a Debug or Release build.
419 When generating the project files, the absolute path to a Vulkan-Headers
420 install directory must be provided. This can be done by setting the
421 `VULKAN_HEADERS_INSTALL_DIR` environment variable or by setting the
422 `VULKAN_HEADERS_INSTALL_DIR` CMake variable with the `-D` CMake option. In
423 either case, the variable should point to the installation directory of a
424 Vulkan-Headers repository built with the install target.
426 > Note: For Linux, the default value for `CMAKE_INSTALL_PREFIX` is
427 > `/usr/local`, which would be used if you do not specify
428 > `CMAKE_INSTALL_PREFIX`. In this case, you may need to use `sudo` to install
429 > to system directories later when you run `make install`.
431 #### Build the Project
433 You can just run `make` to begin the build.
435 To speed up the build on a multi-core machine, use the `-j` option for `make`
436 to specify the number of cores to use for the build. For example:
444 If your build system supports ccache, you can enable that via CMake option `-DUSE_CCACHE=On`
448 #### WSI Support Build Options
450 By default, the repository components are built with support for the
451 Vulkan-defined WSI display servers: Xcb, Xlib, and Wayland. It is recommended
452 to build the repository components with support for these display servers to
453 maximize their usability across Linux platforms. If it is necessary to build
454 these modules without support for one of the display servers, the appropriate
455 CMake option of the form `BUILD_WSI_xxx_SUPPORT` can be set to `OFF`.
457 Note vulkaninfo currently only supports Xcb and Xlib WSI display servers. See
458 the CMakeLists.txt file in `Vulkan-Tools/vulkaninfo` for more info.
460 You can select which WSI subsystem is used to execute the vkcube applications
461 using a CMake option called DEMOS_WSI_SELECTION. Supported options are XCB
462 (default), XLIB, and WAYLAND. Note that you must build using the corresponding
463 BUILD_WSI_*_SUPPORT enabled at the base repository level. For instance,
464 creating a build that will use Xlib when running the vkcube demos, your CMake
465 command line might look like:
467 cmake -DCMAKE_BUILD_TYPE=Debug -DDEMOS_WSI_SELECTION=XLIB ..
469 #### Linux Install to System Directories
471 Installing the files resulting from your build to the systems directories is
472 optional since environment variables can usually be used instead to locate the
473 binaries. There are also risks with interfering with binaries installed by
474 packages. If you are certain that you would like to install your binaries to
475 system directories, you can proceed with these instructions.
477 Assuming that you've built the code as described above and the current
478 directory is still `build`, you can execute:
482 This command installs files to `/usr/local` if no `CMAKE_INSTALL_PREFIX` is
483 specified when creating the build files with CMake.
485 You may need to run `ldconfig` in order to refresh the system loader search
486 cache on some Linux systems.
488 You can further customize the installation location by setting additional
489 CMake variables to override their defaults. For example, if you would like to
490 install to `/tmp/build` instead of `/usr/local`, on your CMake command line
493 -DCMAKE_INSTALL_PREFIX=/tmp/build
495 Then run `make install` as before. The install step places the files in
496 `/tmp/build`. This may be useful for collecting the artifacts and providing
497 them to another project that is dependent on them.
499 Note: The Mock ICD is not installed by default since it is a "null" driver
500 that does not render anything and is used for testing purposes. Installing it
501 to system directories may cause some applications to discover and use this
502 driver instead of other full drivers installed on the system. If you really
503 want to install this null driver, use:
507 See the CMake documentation for more details on using these variables to
508 further customize your installation.
510 Also see the `LoaderAndLayerInterface` document in the `loader` folder of the
511 Vulkan-Loader repository for more information about loader and layer
516 To uninstall the files from the system directories, you can execute:
522 After making any changes to the repository, you should perform some quick
523 sanity tests, such as running the vkcube demo with validation enabled.
525 To run the **vkcube application** with validation, in a terminal change to the
526 `build/cube` directory and run:
528 VK_LAYER_PATH=../path/to/validation/layers ./vkcube --validate
530 If you have an SDK installed and have run the setup script to set the
531 `VULKAN_SDK` environment variable, it may be unnecessary to specify a
534 #### Linux 32-bit support
536 Usage of the contents of this repository in 32-bit Linux environments is not
537 officially supported. However, since this repository is supported on 32-bit
538 Windows, these modules should generally work on 32-bit Linux.
540 Here are some notes for building 32-bit targets on a 64-bit Ubuntu "reference"
543 If not already installed, install the following 32-bit development libraries:
545 `gcc-multilib g++-multilib libx11-dev:i386`
547 This list may vary depending on your distribution and which windowing systems
548 you are building for.
550 Set up your environment for building 32-bit targets:
555 export PKG_CONFIG_LIBDIR=/usr/lib/i386-linux-gnu
557 Again, your PKG_CONFIG configuration may be different, depending on your
560 Finally, rebuild the repository using `cmake` and `make`, as explained above.
562 ## Building On Android
564 Install the required tools for Linux and Windows covered above, then add the
567 ### Android Build Requirements
569 - Install [Android Studio 2.3](https://developer.android.com/studio/index.html) or later.
570 - From the "Welcome to Android Studio" splash screen, add the following components using
571 Configure > SDK Manager:
572 - SDK Platforms > Android 6.0 and newer
573 - SDK Tools > Android SDK Build-Tools
574 - SDK Tools > Android SDK Platform-Tools
575 - SDK Tools > Android SDK Tools
578 #### Add Android specifics to environment
580 For each of the below, you may need to specify a different build-tools
581 version, as Android Studio will roll it forward fairly regularly.
585 export ANDROID_SDK_HOME=$HOME/Android/sdk
586 export ANDROID_NDK_HOME=$HOME/Android/sdk/ndk-bundle
587 export PATH=$ANDROID_SDK_HOME:$PATH
588 export PATH=$ANDROID_NDK_HOME:$PATH
589 export PATH=$ANDROID_SDK_HOME/build-tools/23.0.3:$PATH
593 set ANDROID_SDK_HOME=%LOCALAPPDATA%\Android\sdk
594 set ANDROID_NDK_HOME=%LOCALAPPDATA%\Android\sdk\ndk-bundle
595 set PATH=%LOCALAPPDATA%\Android\sdk\ndk-bundle;%PATH%
599 export ANDROID_SDK_HOME=$HOME/Library/Android/sdk
600 export ANDROID_NDK_HOME=$HOME/Library/Android/sdk/ndk-bundle
601 export PATH=$ANDROID_NDK_PATH:$PATH
602 export PATH=$ANDROID_SDK_HOME/build-tools/23.0.3:$PATH
604 Note: If `jarsigner` is missing from your platform, you can find it in the
605 Android Studio install or in your Java installation. If you do not have Java,
606 you can get it with something like the following:
608 sudo apt-get install openjdk-8-jdk
610 #### Additional OSX System Requirements
612 Tested on OSX version 10.13.3
614 Setup Homebrew and components
616 - Follow instructions on [brew.sh](http://brew.sh) to get Homebrew installed.
618 /usr/bin/ruby -e "$(curl -fsSL \
619 https://raw.githubusercontent.com/Homebrew/install/master/install)"
621 - Ensure Homebrew is at the beginning of your PATH:
623 export PATH=/usr/local/bin:$PATH
625 - Add packages with the following:
631 There are two options for building the Android tools. Either using the SPIRV
632 tools provided as part of the Android NDK, or using upstream sources. To build
633 with SPIRV tools from the NDK, remove the build-android/third_party directory
634 created by running update_external_sources_android.sh, (or avoid running
635 update_external_sources_android.sh). Use the following script to build
636 everything in the repository for Android, including validation layers, tests,
637 demos, and APK packaging: This script does retrieve and use the upstream SPRIV
643 Test and application APKs can be installed on production devices with:
645 ./install_all.sh [-s <serial number>]
647 Note that there are no equivalent scripts on Windows yet, that work needs to
648 be completed. The following per platform commands can be used for layer only
653 Follow the setup steps for Linux or OSX above, then from your terminal:
656 ./update_external_sources_android.sh --no-build
657 ./android-generate.sh
662 Follow the setup steps for Windows above, then from Developer Command Prompt
666 update_external_sources_android.bat
670 ### Android Tests and Demos
672 After making any changes to the repository you should perform some quick
673 sanity tests, including the layer validation tests and the vkcube
674 demo with validation enabled.
676 #### Run Layer Validation Tests
678 Use the following steps to build, install, and run the layer validation tests
683 adb install -r bin/VulkanLayerValidationTests.apk
684 adb shell am start com.example.VulkanLayerValidationTests/android.app.NativeActivity
686 Alternatively, you can use the test_APK script to install and run the layer
689 test_APK.sh -s <serial number> -p <platform name> -f <gtest_filter>
691 #### Run vkcube with Validation
693 TODO: This must be reworked to pull in layers from the ValidationLayers repo
695 Use the following steps to build, install, and run vkcube for Android:
699 adb install -r ../demos/android/cube/bin/vkcube.apk
700 adb shell am start com.example.Cube/android.app.NativeActivity
702 To build, install, and run Cube with validation layers,
703 first build layers using steps above, then run:
707 adb install -r ../demos/android/cube-with-layers/bin/cube-with-layers.apk
709 ##### Run without validation enabled
711 adb shell am start com.example.CubeWithLayers/android.app.NativeActivity
713 ##### Run with validation enabled
715 adb shell am start -a android.intent.action.MAIN -c android-intent.category.LAUNCH -n com.example.CubeWithLayers/android.app.NativeActivity --es args "--validate"
719 ### MacOS Build Requirements
721 Tested on OSX version 10.12.6
723 - [CMake 3.10.2](https://cmake.org/files/v3.10/cmake-3.10.2-Darwin-x86_64.tar.gz) is recommended.
725 Setup Homebrew and components
727 - Follow instructions on [brew.sh](http://brew.sh) to get Homebrew installed.
729 /usr/bin/ruby -e "$(curl -fsSL \
730 https://raw.githubusercontent.com/Homebrew/install/master/install)"
732 - Ensure Homebrew is at the beginning of your PATH:
734 export PATH=/usr/local/bin:$PATH
736 - Add packages with the following (may need refinement)
738 brew install python python3 git
740 ### Clone the Repository
742 Clone the Vulkan-Tools repository as defined above in the [Download the Repository](#download-the-repository)
745 ### Get the External Libraries
747 [MoltenVK](https://github.com/KhronosGroup/MoltenVK) Library
749 - Building the vkcube and vulkaninfo applications require linking to the
750 MoltenVK Library (libMoltenVK.dylib)
751 - The following option should be used on the cmake command line to specify a
752 vulkan loader library: MOLTENVK_REPO_ROOT=/absolute_path_to/MoltenVK
753 making sure to specify an absolute path, like so: cmake
754 -DMOLTENVK_REPO_ROOT=/absolute_path_to/MoltenVK ....
756 Vulkan Loader Library
758 - Building the vkcube and vulkaninfo applications require linking to the Vulkan
759 Loader Library (libvulkan.1.dylib)
760 - The following option should be used on the cmake command line to specify a
761 vulkan loader library:
762 VULKAN_LOADER_INSTALL_DIR=/absolute_path_to/Vulkan-Loader_install_dir
763 making sure to specify an absolute path.
767 #### CMake Generators
769 This repository uses CMake to generate build or project files that are then
770 used to build the repository. The CMake generators explicitly supported in
776 #### Building with the Unix Makefiles Generator
778 This generator is the default generator, so all that is needed for a debug
783 cmake -DCMAKE_BUILD_TYPE=Debug \
784 -DVULKAN_LOADER_INSTALL_DIR=/absolute_path_to/Vulkan-Loader_install_dir \
785 -DMOLTENVK_REPO_ROOT=/absolute_path_to/MoltenVK \
786 -DCMAKE_INSTALL_PREFIX=install ..
789 To speed up the build on a multi-core machine, use the `-j` option for `make`
790 to specify the number of cores to use for the build. For example:
794 You can now run the demo applications from the command line:
797 open cube/vkcubepp.app
798 open vulkaninfo/vulkaninfo.app
800 Or you can locate them from `Finder` and launch them from there.
802 ##### The Install Target and RPATH
804 The applications you just built are "bundled applications", but the
805 executables are using the `RPATH` mechanism to locate runtime dependencies
806 that are still in your build tree.
808 To see this, run this command from your `build` directory:
810 otool -l cube/cube.app/Contents/MacOS/vkcube
812 and note that the `vkcube` executable contains loader commands:
814 - `LC_LOAD_DYLIB` to load `libvulkan.1.dylib` via an `@rpath`
815 - `LC_RPATH` that contains an absolute path to the build location of the Vulkan loader
817 This makes the bundled application "non-transportable", meaning that it won't
818 run unless the Vulkan loader is on that specific absolute path. This is useful
819 for debugging the loader or other components built in this repository, but not
820 if you want to move the application to another machine or remove your build
823 To address this problem, run:
827 This step copies the bundled applications to the location specified by
828 CMAKE_INSTALL_PREFIX and "cleans up" the `RPATH` to remove any external
829 references and performs other bundle fix-ups. After running `make install`,
830 run the `otool` command again from the `build/install` directory and note:
832 - `LC_LOAD_DYLIB` is now `@executable_path/../MacOS/libvulkan.1.dylib`
833 - `LC_RPATH` is no longer present
835 The "bundle fix-up" operation also puts a copy of the Vulkan loader into the
836 bundle, making the bundle completely self-contained and self-referencing.
838 ##### The Non-bundled vulkaninfo Application
840 There is also a non-bundled version of the `vulkaninfo` application that you
841 can run from the command line:
843 vulkaninfo/vulkaninfo
845 If you run this from the build directory, vulkaninfo's RPATH is already
846 set to point to the Vulkan loader in the build tree, so it has no trouble
847 finding it. But the loader will not find the MoltenVK driver and you'll see a
848 message about an incompatible driver. To remedy this:
850 VK_ICD_FILENAMES=<path-to>/MoltenVK/Package/Latest/MoltenVK/macOS/MoltenVK_icd.json vulkaninfo/vulkaninfo
852 If you run `vulkaninfo` from the install directory, the `RPATH` in the
853 `vulkaninfo` application got removed and the OS needs extra help to locate
856 DYLD_LIBRARY_PATH=<path-to>/Vulkan-Loader/loader VK_ICD_FILENAMES=<path-to>/MoltenVK/Package/Latest/MoltenVK/macOS/MoltenVK_icd.json vulkaninfo/vulkaninfo
858 #### Building with the Xcode Generator
860 To create and open an Xcode project:
864 cmake -DVULKAN_LOADER_INSTALL_DIR=/absolute_path_to/Vulkan-Loader_install_dir -DMOLTENVK_REPO_ROOT=/absolute_path_to/MoltenVK -GXcode ..
865 open VULKAN.xcodeproj
867 Within Xcode, you can select Debug or Release builds in the project's Build
868 Settings. You can also select individual schemes for working with specific
869 applications like `vkcube`.