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Pass preserveInvariance to MSL compiler if necessary

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Fixed: dawn:977
Change-Id: I7df2080424a4af0b7155ee24f61bb37f0674de82
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/57741
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
This commit is contained in:
Austin Eng 2021-07-13 00:07:45 +00:00 committed by Dawn LUCI CQ
parent 726d17947a
commit 2103fa629e
2 changed files with 17 additions and 7 deletions
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3
src/dawn_native/metal/ShaderModuleMTL.h
View File

@ -58,7 +58,8 @@ namespace dawn_native { namespace metal {
const RenderPipeline* renderPipeline,
const VertexState* vertexState,
std::string* remappedEntryPointName,
bool* needsStorageBufferLength);
bool* needsStorageBufferLength,
bool* hasInvariantAttribute);
ResultOrError<std::string> TranslateToMSLWithSPIRVCross(
const char* entryPointName,
SingleShaderStage stage,

21
src/dawn_native/metal/ShaderModuleMTL.mm
View File

@ -59,7 +59,8 @@ namespace dawn_native { namespace metal {
const RenderPipeline* renderPipeline,
const VertexState* vertexState,
std::string* remappedEntryPointName,
bool* needsStorageBufferLength) {
bool* needsStorageBufferLength,
bool* hasInvariantAttribute) {
ScopedTintICEHandler scopedICEHandler(GetDevice());
std::ostringstream errorStream;
@ -160,6 +161,7 @@ namespace dawn_native { namespace metal {
}
*needsStorageBufferLength = result.needs_storage_buffer_sizes;
*hasInvariantAttribute = result.has_invariant_attribute;
return std::move(result.msl);
}
@ -292,11 +294,12 @@ namespace dawn_native { namespace metal {
std::string remappedEntryPointName;
std::string msl;
bool hasInvariantAttribute = false;
if (GetDevice()->IsToggleEnabled(Toggle::UseTintGenerator)) {
DAWN_TRY_ASSIGN(
msl, TranslateToMSLWithTint(entryPointName, stage, layout, sampleMask,
renderPipeline, vertexState, &remappedEntryPointName,
&out->needsStorageBufferLength));
DAWN_TRY_ASSIGN(msl, TranslateToMSLWithTint(
entryPointName, stage, layout, sampleMask, renderPipeline,
vertexState, &remappedEntryPointName,
&out->needsStorageBufferLength, &hasInvariantAttribute));
} else {
DAWN_TRY_ASSIGN(msl, TranslateToMSLWithSPIRVCross(entryPointName, stage, layout,
sampleMask, renderPipeline,
@ -322,11 +325,17 @@ namespace dawn_native { namespace metal {
NSRef<NSString> mslSource = AcquireNSRef([[NSString alloc] initWithUTF8String:msl.c_str()]);
NSRef<MTLCompileOptions> compileOptions = AcquireNSRef([[MTLCompileOptions alloc] init]);
if (hasInvariantAttribute) {
if (@available(macOS 11.0, iOS 13.0, *)) {
(*compileOptions).preserveInvariance = true;
}
}
auto mtlDevice = ToBackend(GetDevice())->GetMTLDevice();
NSError* error = nullptr;
NSPRef<id<MTLLibrary>> library =
AcquireNSPRef([mtlDevice newLibraryWithSource:mslSource.Get()
options:nullptr
options:compileOptions.Get()
error:&error]);
if (error != nullptr) {
if (error.code != MTLLibraryErrorCompileWarning) {