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Add reflection for used vertex attributes using Tint 

BUG=dawn:701

Change-Id: I36e5492cc87afc597d52e5cab9424922fd99dcdc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/44200
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This commit is contained in:
Ryan Harrison 2021-03-10 16:44:08 +00:00 committed by Commit Bot service account
parent 6d4617a2d2
commit 54c9b8244d
1 changed files with 33 additions and 0 deletions
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33
src/dawn_native/ShaderModule.cpp
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@ -756,6 +756,31 @@ namespace dawn_native {
metadata->localWorkgroupSize.z = entryPoint.workgroup_size_z;
}
if (metadata->stage == SingleShaderStage::Vertex) {
for (const auto& input_var : entryPoint.input_variables) {
uint32_t location = 0;
if (input_var.has_location_decoration) {
location = input_var.location_decoration;
}
if (DAWN_UNLIKELY(location >= kMaxVertexAttributes)) {
std::stringstream ss;
ss << "Attribute location (" << location << ") over limits";
return DAWN_VALIDATION_ERROR(ss.str());
}
metadata->usedVertexAttributes.set(location);
}
for (const auto& output_var : entryPoint.output_variables) {
if (DAWN_UNLIKELY(!output_var.has_location_decoration)) {
std::stringstream ss;
ss << "Missing location qualifier on vertex output, "
<< output_var.name;
return DAWN_VALIDATION_ERROR(ss.str());
}
}
}
result[entryPoint.name] = std::move(metadata);
}
return std::move(result);
@ -833,6 +858,14 @@ namespace dawn_native {
}
}
if (tintEntry->stage == SingleShaderStage::Vertex) {
if (tintEntry->usedVertexAttributes != crossEntry->usedVertexAttributes) {
return DAWN_VALIDATION_ERROR(
"Tint and SPIRV-Cross returned different values for used vertex "
"attributes");
}
}
// TODO(rharrison): Use the Inspector to get this data.
tintEntry->bindings = crossEntry->bindings;
tintEntry->fragmentOutputFormatBaseTypes =