107 lines
3.9 KiB
Plaintext
107 lines
3.9 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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import("//build/config/ui.gni")
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dawn_use_x11 = use_x11
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} else {
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declare_args() {
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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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}
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# Enable the compilation for UWP
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dawn_is_winuwp = is_win && target_os == "winuwp"
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declare_args() {
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dawn_use_angle = true
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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 makes 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 = build_with_chromium && use_fuzzing_engine
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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_desktop_gl = is_linux && !is_chromeos
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# Enables the compilation of Dawn's OpenGLES backend
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# (WebGPU/Compat subset)
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dawn_enable_opengles = (is_linux && !is_chromeos) || is_win
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# Enables the compilation of Dawn's Vulkan backend
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# Disables vulkan when compiling for UWP, since UWP only supports d3d
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dawn_enable_vulkan = is_linux || is_chromeos || (is_win && !dawn_is_winuwp) ||
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is_fuchsia || is_android || dawn_use_swiftshader
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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 it.
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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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}
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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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# Uses our built version of the 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 || is_mac)
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# Uses our built version of the Vulkan loader on platforms where we can't
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# assume to have one present at the system level.
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dawn_enable_vulkan_loader = dawn_enable_vulkan && is_mac
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}
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# UWP only supports CoreWindow for windowing
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dawn_supports_glfw_for_windowing =
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(is_win && !dawn_is_winuwp) || (is_linux && !is_chromeos) || is_mac
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# Much of the backend code is shared, so define a convenience var.
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dawn_enable_opengl = dawn_enable_opengles || dawn_enable_desktop_gl
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