CMakeLists.txt

cmake_minimum_required(VERSION 3.22.1)
cmake_policy(SET CMP0048 NEW)
project(webgpu VERSION 1.1.0 LANGUAGES CXX)

include(${CMAKE_CURRENT_LIST_DIR}/BundleLibraries.cmake)

set(DAWN_BUILD_ANDROID_SAMPLES OFF)
set(DAWN_BUILD_SAMPLES OFF)
set(TINT_BUILD_TESTS OFF)
set(TINT_BUILD_CMD_TOOLS OFF)

add_subdirectory(../../../externals/dawn/ dawn)

add_library(native_dawn main.cpp)

target_link_libraries(native_dawn webgpu_dawn)

bundle_libraries(webgpu_c_bundled native_dawn)

if(ANDROID)
  find_library(log-lib log)
  target_link_libraries(webgpu_c_bundled ${log-lib} android)
elseif(IOS)
  target_link_libraries(webgpu_c_bundled "-framework CoreFoundation" "-framework IOSurface" "-framework Metal" "-framework QuartzCore" "-framework Foundation")
endif()

Hey, i've some questions to get an understanding of where you'd want to take this:

1. Any reason to link with webgpu_dawn instead of dawn_native directly and compile ${WEBGPU_DAWN_NATIVE_PROC_GEN_SOURCES}?

2. Is this still required?

  find_library(log-lib log)
  target_link_libraries(webgpu_c_bundled ${log-lib} android)

dawn/common/CMakeLists.txt was updated to do the right thing in https://dawn-review.googlesource.com/c/dawn/+/194917

3. Are you planning to offer only C wgpu functions from the bundle or do you plan to expose even the public facing classes in dawn::native and dawn::wire namespace?

Thank you so much for taking the time to look at it 🙏

1. This sounds like a good approach, I simply copy paste it from tools/android/.../CMakeLists.txt
2. This is very likely, I was using chromium/6539
3. The plan is to offer only wgpu namespace. Does that mean that I may need to take a different approach?

The plan is to offer only wgpu namespace. Does that mean that I may need to take a different approach?

Hmm. Then you likely need to export the symbols from the bundle. I guess in android it doesn't matter, but you could run into issues on mac.

target_compile_definitions(webgpu_dawn PRIVATE "WGPU_IMPLEMENTATION")
target_compile_definitions(webgpu_dawn PUBLIC "WGPU_SHARED_LIBRARY")

yes that 100% correct, how did you know 😅

ran into various problems after i changed dawn to hide symbols by default.