dual_source_blending_extension_test.cc

// Copyright 2023 The Dawn & Tint Authors
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#include "src/tint/lang/core/fluent_types.h"
#include "src/tint/lang/wgsl/resolver/resolver.h"
#include "src/tint/lang/wgsl/resolver/resolver_helper_test.h"

#include "gmock/gmock.h"

usingnamespacetint::core::number_suffixes;  // NOLINT
usingnamespacetint::core::fluent_types;     // NOLINT

namespace tint::resolver {
namespace {

DualSourceBlendingExtensionTest;

// Using the @blend_src attribute without dual_source_blending enabled should fail.
TEST_F(DualSourceBlendingExtensionTest, UseBlendSrcAttribWithoutExtensionError) { … }

class DualSourceBlendingExtensionTests : public ResolverTest { … };

// Using an F32 as a @blend_src value should fail.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcF32Error) { … }

// Using a floating point number as a @blend_src value should fail.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcFloatValueError) { … }

// Using a number less than zero as a @blend_src value should fail.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcNegativeValue) { … }

// Using a number greater than one as a @blend_src value should fail.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcValueAboveOne) { … }

// Using a @blend_src value at the same location multiple times should fail.
TEST_F(DualSourceBlendingExtensionTests, DuplicateBlendSrces) { … }

// Using the @blend_src attribute without a location attribute should fail.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcWithMissingLocationAttribute_Struct) { … }

// Using a @blend_src attribute on a struct member while there is only one member in the struct
// should fail.
TEST_F(DualSourceBlendingExtensionTests, StructMemberBlendSrcAttribute_OnlyBlendSrc0) { … }

// Using a @blend_src attribute on a struct member while there is only one member in the struct
// should fail.
TEST_F(DualSourceBlendingExtensionTests, StructMemberBlendSrcAttribute_OnlyBlendSrc1) { … }

// Using a @blend_src attribute on a global variable should pass. This is needed internally when
// using @blend_src with the canonicalize_entry_point transform. This test uses an internal
// attribute to ignore address space, which is how it is used with the canonicalize_entry_point
// transform.
TEST_F(DualSourceBlendingExtensionTests, GlobalVariableBlendSrcAttributeAfterInternalTransform) { … }

// Using the a @blend_src attribute with a non-zero location should fail.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcWithNonZeroLocation_Struct) { … }

// Using @blend_src and @location(0) on two members and having another without @location should not
// fail.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcAndNonLocationNonBlendSrc) { … }

// Using @blend_src and @location(0) on two members and having another member with @location but
// without @blend_src should fail.
TEST_F(DualSourceBlendingExtensionTests, ZeroLocationAndNonBlendSrcBeforeBlendSrc) { … }

// Using @blend_src and @location(0) on two members and having another member with @location but
// without @blend_src should fail.
TEST_F(DualSourceBlendingExtensionTests, ZeroLocationAndNonBlendSrcAfterBlendSrc) { … }

// Using @blend_src and @location(0) on two members and having another member with @location but
// without @blend_src should fail.
TEST_F(DualSourceBlendingExtensionTests, NonZeroLocationAndNonBlendSrcBeforeBlendSrc) { … }

// Using @blend_src and @location(0) on two members and having another member with @location but
// without @blend_src should fail.
TEST_F(DualSourceBlendingExtensionTests, NonZeroLocationAndNonBlendSrcAfterBlendSrc) { … }

// The members with @blend_src and @location(0) must have same type.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcTypes_DifferentWidth) { … }

// The members with @blend_src and @location(0) must have same type.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcTypes_DifferentElementType) { … }

// It is not allowed to use a struct with @blend_src as fragment shader input.
TEST_F(DualSourceBlendingExtensionTests, BlendSrcAsFragmentInput) { … }

// It is not allowed to use @blend_src on the fragment output declaration.
TEST_F(DualSourceBlendingExtensionTest, BlendSrcOnNonStructFragmentOutput) { … }

class DualSourceBlendingExtensionTestWithParams : public ResolverTestWithParam<int> { … };

// Rendering to multiple render targets while using dual source blending should fail.
TEST_P(DualSourceBlendingExtensionTestWithParams,
       MultipleRenderTargetsNotAllowed_BlendSrcAndNoBlendSrc) { … }

TEST_P(DualSourceBlendingExtensionTestWithParams,
       MultipleRenderTargetsNotAllowed_NonZeroLocationThenBlendSrc) { … }

INSTANTIATE_TEST_SUITE_P(…);

}  // namespace
}  // namespace tint::resolver
chromium/third_party/dawn/src/tint/lang/wgsl/resolver/dual_source_blending_extension_test.cc
