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godot/drivers/vulkan/SCsub

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Initial work on Vulkan: -Added VulkanContext -Added an X11 implementation -Added a rendering device abstraction -added a Vulkan rendering device abstraction -Engine does not work, only shows Godot logo (run it from bin/)
2019-06-07 16:07:57 +00:00
#!/usr/bin/env python
SCons: Format buildsystem files with psf/black Configured for a max line length of 120 characters. psf/black is very opinionated and purposely doesn't leave much room for configuration. The output is mostly OK so that should be fine for us, but some things worth noting: - Manually wrapped strings will be reflowed, so by using a line length of 120 for the sake of preserving readability for our long command calls, it also means that some manually wrapped strings are back on the same line and should be manually merged again. - Code generators using string concatenation extensively look awful, since black puts each operand on a single line. We need to refactor these generators to use more pythonic string formatting, for which many options are available (`%`, `format` or f-strings). - CI checks and a pre-commit hook will be added to ensure that future buildsystem changes are well-formatted.
2020-03-30 06:28:32 +00:00
Import("env")
Initial work on Vulkan: -Added VulkanContext -Added an X11 implementation -Added a rendering device abstraction -added a Vulkan rendering device abstraction -Engine does not work, only shows Godot logo (run it from bin/)
2019-06-07 16:07:57 +00:00
SCons: Add explicit dependencies on thirdparty code in cloned env Since we clone the environments to build thirdparty code, we don't get an explicit dependency on the build objects produced by that environment. So when we update thirdparty code, Godot code using it is not necessarily rebuilt (I think it is for changed headers, but not for changed .c/.cpp files), which can lead to an invalid compilation output (linking old Godot .o files with a newer, potentially ABI breaking version of thirdparty code). This was only seen as really problematic with bullet updates (leading to crashes when rebuilding Godot after a bullet update without cleaning .o files), but it's safer to fix it everywhere, even if it's a LOT of hacky boilerplate.
2020-12-17 15:01:36 +00:00
thirdparty_obj = []
Use "volk" instead of statically linked Vulkan loader.
2021-08-12 11:24:54 +00:00
thirdparty_dir = "#thirdparty/vulkan"
thirdparty_volk_dir = "#thirdparty/volk"
Initial work on Vulkan: -Added VulkanContext -Added an X11 implementation -Added a rendering device abstraction -added a Vulkan rendering device abstraction -Engine does not work, only shows Godot logo (run it from bin/)
2019-06-07 16:07:57 +00:00
Android: Use volk instead of NDK Vulkan headers We no longer build the Vulkan loader, and volk lets us load it dynamically. Roblox uses volk on Android so it should work well for us too.
2021-08-12 21:39:30 +00:00
# Use bundled Vulkan headers
env.Prepend(CPPPATH=[thirdparty_dir, thirdparty_dir + "/include"])
Use "volk" instead of statically linked Vulkan loader.
2021-08-12 11:24:54 +00:00
if env["use_volk"]:
env.AppendUnique(CPPDEFINES=["USE_VOLK"])
env.Prepend(CPPPATH=[thirdparty_volk_dir])
if env["platform"] == "android":
env.AppendUnique(CPPDEFINES=["VK_USE_PLATFORM_ANDROID_KHR"])
elif env["platform"] == "iphone":
env.AppendUnique(CPPDEFINES=["VK_USE_PLATFORM_IOS_MVK"])
elif env["platform"] == "linuxbsd":
env.AppendUnique(CPPDEFINES=["VK_USE_PLATFORM_XLIB_KHR"])
elif env["platform"] == "osx":
env.AppendUnique(CPPDEFINES=["VK_USE_PLATFORM_MACOS_MVK"])
elif env["platform"] == "windows":
env.AppendUnique(CPPDEFINES=["VK_USE_PLATFORM_WIN32_KHR"])
# Build Vulkan memory allocator and volk
env_thirdparty_vma = env.Clone()
env_thirdparty_vma.disable_warnings()
thirdparty_sources_vma = [thirdparty_dir + "/vk_mem_alloc.cpp"]
if env["use_volk"]:
env_thirdparty_vma.AppendUnique(CPPDEFINES=["VMA_STATIC_VULKAN_FUNCTIONS=1"])
env_thirdparty_volk = env.Clone()
env_thirdparty_volk.disable_warnings()
thirdparty_sources_volk = [thirdparty_volk_dir + "/volk.c"]
env_thirdparty_volk.add_source_files(thirdparty_obj, thirdparty_sources_volk)
Upgrade Vulkan memory allocator
2021-08-12 22:02:20 +00:00
elif env["platform"] == "android":
# Our current NDK version only provides old Vulkan headers,
# so we have to limit VMA.
env_thirdparty_vma.AppendUnique(CPPDEFINES=["VMA_VULKAN_VERSION=1000000"])
Use "volk" instead of statically linked Vulkan loader.
2021-08-12 11:24:54 +00:00
env_thirdparty_vma.add_source_files(thirdparty_obj, thirdparty_sources_vma)
SCons: Add explicit dependencies on thirdparty code in cloned env Since we clone the environments to build thirdparty code, we don't get an explicit dependency on the build objects produced by that environment. So when we update thirdparty code, Godot code using it is not necessarily rebuilt (I think it is for changed headers, but not for changed .c/.cpp files), which can lead to an invalid compilation output (linking old Godot .o files with a newer, potentially ABI breaking version of thirdparty code). This was only seen as really problematic with bullet updates (leading to crashes when rebuilding Godot after a bullet update without cleaning .o files), but it's safer to fix it everywhere, even if it's a LOT of hacky boilerplate.
2020-12-17 15:01:36 +00:00
env.drivers_sources += thirdparty_obj
# Godot source files
driver_obj = []
env.add_source_files(driver_obj, "*.cpp")
env.drivers_sources += driver_obj
# Needed to force rebuilding the driver files when the thirdparty code is updated.
env.Depends(driver_obj, thirdparty_obj)