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Refactor code to have rudimentary support for using SPVC

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This is the first step for having a fully operational SPVC usage
path. This version of SPVC integration uses SPVC for setting up the
options to the compiler, but a lot of the actual interaction with
spirv-cross is done in Dawn, just via SPVC's compiler object.

Future CLs will migrate more of the spirv-cross interaction to using
the SPVC API, eventually removing the need for Dawn to know about
spirv-cross.

BUG=dawn:288

Change-Id: I68e0773f910d7fe967235b6987b3debe1d13883f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14143
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This commit is contained in:
Ryan Harrison
2019-12-03 20:25:13 +00:00
committed by Commit Bot service account
parent 969df2b3a2
commit be5c135672
14 changed files with 224 additions and 77 deletions
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17
src/dawn_native/null/DeviceNull.cpp
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@@ -129,9 +129,22 @@ namespace dawn_native { namespace null {
const ShaderModuleDescriptor* descriptor) {
auto module = new ShaderModule(this, descriptor);
spirv_cross::Compiler compiler(descriptor->code, descriptor->codeSize);
module->ExtractSpirvInfo(compiler);
if (IsToggleEnabled(Toggle::UseSpvc)) {
shaderc_spvc::CompileOptions options;
shaderc_spvc::Context context;
shaderc_spvc_status status =
context.InitializeForGlsl(descriptor->code, descriptor->codeSize, options);
if (status != shaderc_spvc_status_success) {
return DAWN_VALIDATION_ERROR("Unable to initialize instance of spvc");
}
spirv_cross::Compiler* compiler =
reinterpret_cast<spirv_cross::Compiler*>(context.GetCompiler());
module->ExtractSpirvInfo(*compiler);
} else {
spirv_cross::Compiler compiler(descriptor->code, descriptor->codeSize);
module->ExtractSpirvInfo(compiler);
}
return module;
}
ResultOrError<SwapChainBase*> Device::CreateSwapChainImpl(