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Set the Tint MSL emit_vertex_point_size option when necessary 

If [[point_size]] is not emitted, it is undefined. Set the option for
Tint to explicitly set it to 1.0 when necessary.

Bug: dawn:1059
Change-Id: I27c19e88cda30aef0a8f31b213c58d5bf87feabd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/61280
Commit-Queue: Austin Eng <enga@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Auto-Submit: Austin Eng <enga@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This commit is contained in:
Austin Eng 2021-08-06 18:19:38 +00:00 committed by Dawn LUCI CQ
parent 567e071b5b
commit 93011d0305
1 changed files with 3 additions and 0 deletions
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3
src/dawn_native/metal/ShaderModuleMTL.mm
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@ -153,6 +153,9 @@ namespace dawn_native { namespace metal {
options.buffer_size_ubo_index = kBufferLengthBufferSlot;
options.fixed_sample_mask = sampleMask;
options.disable_workgroup_init = GetDevice()->IsToggleEnabled(Toggle::DisableWorkgroupInit);
options.emit_vertex_point_size =
stage == SingleShaderStage::Vertex &&
renderPipeline->GetPrimitiveTopology() == wgpu::PrimitiveTopology::PointList;
auto result = tint::writer::msl::Generate(&program, options);
if (!result.success) {
errorStream << "Generator: " << result.error << std::endl;