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This is another step to implement webgpu.h swapchains, Surface is essentially a union type of all the types of windows that can be used to create swapchains. Changes to allow implementing wgpu::Surface and test its creation are: - Add GLFWUtils.cpp/.h/_metal.mm that contains helpers used to use WebGPU with GLFW. This deprecates BackendBinding.h that will be removed when the NXT swapchain is removed. - Add a `dawn_use_x11` GN variable to factor all the places in BUILD.gn where we checked whether we should use X11. - Add a `supports_glfw_for_windowing` GN variable in the main BUILD.gn file to control which configuration tests and samples using GLFW can be built. - Add a ObjCUtils.h to contain some ObjC functionality that we'd need in files that otherwise would be C++ (so that they can be compiled on all platforms). Bug: dawn:269 Change-Id: I25548142a1d1d1f05b0f4d71aa3bdc4698d19622 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/15081 Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Kai Ninomiya <kainino@chromium.org>
79 lines
2.9 KiB
Plaintext
79 lines
2.9 KiB
Plaintext
# Copyright 2018 The Dawn Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import("//build_overrides/build.gni")
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if (build_with_chromium) {
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import("//build/config/sanitizers/sanitizers.gni")
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}
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declare_args() {
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# Enable Dawn's ASSERTs even in release builds
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dawn_always_assert = false
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# Should the Dawn static libraries be fully linked vs. GN's default of
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# treating them as source sets. This is useful for people using Dawn
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# standalone to produce static libraries to use in their projects.
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dawn_complete_static_libs = false
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# Enables the compilation of Dawn's D3D12 backend
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dawn_enable_d3d12 = is_win
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# Enables the compilation of Dawn's Metal backend
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dawn_enable_metal = is_mac
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# Enables the compilation of Dawn's Null backend
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# (required for unittests, obviously non-conformant)
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dawn_enable_null = true
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# Enables the compilation of Dawn's OpenGL backend
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# (best effort, non-conformant)
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dawn_enable_opengl = is_linux && !is_chromeos
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# Enables the compilation of Dawn's Vulkan backend
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dawn_enable_vulkan = is_linux || is_win || is_fuchsia || is_android
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# Enable use of reflection compiler in spirv-cross. This is needed
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# if performing reflection on systems that the platform language
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# shader is SPIR-V, since there isn't an instance of the
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# GLSL/HLSL/MSL compiler. This implicitly pulls in the GLSL
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# compiler, since it is a sub-class of if.
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dawn_enable_cross_reflection = false
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# Enables error injection for faking failures to native API calls
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dawn_enable_error_injection =
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is_debug || (build_with_chromium && use_fuzzing_engine)
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# Whether Dawn should enable X11 support.
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dawn_use_x11 = is_linux && !is_chromeos
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}
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# GN does not allow reading a variable defined in the same declare_args().
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# Put them in two separate declare_args() when setting the value of one
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# argument based on another.
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declare_args() {
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# Enables usage of swiftshader on the Vulkan backend.
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# Note that this will only work in standalone and in projects that set the
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# dawn_swiftshader_dir variable in build_overrides/dawn.gni
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# Because of how the Vulkan loader works, setting this make Dawn only able
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# to find the Swiftshader ICD and not the others.
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# Enabled by default when fuzzing.
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dawn_use_swiftshader =
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dawn_enable_vulkan && build_with_chromium && use_fuzzing_engine
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# Uses our built version of Vulkan validation layers
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dawn_enable_vulkan_validation_layers =
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dawn_enable_vulkan && ((is_linux && !is_chromeos) || is_win)
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}
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