| // Copyright 2018 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <sstream> |
| #include <string> |
| |
| #include "dawn/common/Constants.h" |
| #include "dawn/native/ShaderModule.h" |
| #include "dawn/tests/unittests/validation/ValidationTest.h" |
| #include "dawn/utils/ComboRenderPipelineDescriptor.h" |
| #include "dawn/utils/WGPUHelpers.h" |
| |
| class ShaderModuleValidationTest : public ValidationTest {}; |
| |
| // Test case with a simpler shader that should successfully be created |
| TEST_F(ShaderModuleValidationTest, CreationSuccess) { |
| const char* shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %main "main" %fragColor |
| OpExecutionMode %main OriginUpperLeft |
| OpSource GLSL 450 |
| OpSourceExtension "GL_GOOGLE_cpp_style_line_directive" |
| OpSourceExtension "GL_GOOGLE_include_directive" |
| OpName %main "main" |
| OpName %fragColor "fragColor" |
| OpDecorate %fragColor Location 0 |
| %void = OpTypeVoid |
| %3 = OpTypeFunction %void |
| %float = OpTypeFloat 32 |
| %v4float = OpTypeVector %float 4 |
| %_ptr_Output_v4float = OpTypePointer Output %v4float |
| %fragColor = OpVariable %_ptr_Output_v4float Output |
| %float_1 = OpConstant %float 1 |
| %float_0 = OpConstant %float 0 |
| %12 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1 |
| %main = OpFunction %void None %3 |
| %5 = OpLabel |
| OpStore %fragColor %12 |
| OpReturn |
| OpFunctionEnd)"; |
| |
| utils::CreateShaderModuleFromASM(device, shader); |
| } |
| |
| // Tests that if the output location exceeds kMaxColorAttachments the fragment shader will fail to |
| // be compiled. |
| TEST_F(ShaderModuleValidationTest, FragmentOutputLocationExceedsMaxColorAttachments) { |
| std::ostringstream stream; |
| stream << "@fragment fn main() -> @location(" << kMaxColorAttachments << R"() vec4<f32> { |
| return vec4<f32>(0.0, 1.0, 0.0, 1.0); |
| })"; |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, stream.str().c_str())); |
| } |
| |
| // Test that it is invalid to create a shader module with no chained descriptor. (It must be |
| // WGSL or SPIRV, not empty) |
| TEST_F(ShaderModuleValidationTest, NoChainedDescriptor) { |
| wgpu::ShaderModuleDescriptor desc = {}; |
| ASSERT_DEVICE_ERROR(device.CreateShaderModule(&desc)); |
| } |
| |
| // Test that it is not allowed to use combined texture and sampler. |
| TEST_F(ShaderModuleValidationTest, CombinedTextureAndSampler) { |
| // SPIR-V ASM produced by glslang for the following fragment shader: |
| // |
| // #version 450 |
| // layout(set = 0, binding = 0) uniform sampler2D tex; |
| // void main () {} |
| // |
| // Note that the following defines an interface combined texture/sampler which is not allowed |
| // in Dawn / WebGPU. |
| // |
| // %8 = OpTypeSampledImage %7 |
| // %_ptr_UniformConstant_8 = OpTypePointer UniformConstant %8 |
| // %tex = OpVariable %_ptr_UniformConstant_8 UniformConstant |
| const char* shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %main "main" |
| OpExecutionMode %main OriginUpperLeft |
| OpSource GLSL 450 |
| OpName %main "main" |
| OpName %tex "tex" |
| OpDecorate %tex DescriptorSet 0 |
| OpDecorate %tex Binding 0 |
| %void = OpTypeVoid |
| %3 = OpTypeFunction %void |
| %float = OpTypeFloat 32 |
| %7 = OpTypeImage %float 2D 0 0 0 1 Unknown |
| %8 = OpTypeSampledImage %7 |
| %_ptr_UniformConstant_8 = OpTypePointer UniformConstant %8 |
| %tex = OpVariable %_ptr_UniformConstant_8 UniformConstant |
| %main = OpFunction %void None %3 |
| %5 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModuleFromASM(device, shader)); |
| } |
| |
| // Test that it is not allowed to declare a multisampled-array interface texture. |
| // TODO(enga): Also test multisampled cube, cube array, and 3D. These have no GLSL keywords. |
| TEST_F(ShaderModuleValidationTest, MultisampledArrayTexture) { |
| // SPIR-V ASM produced by glslang for the following fragment shader: |
| // |
| // #version 450 |
| // layout(set=0, binding=0) uniform texture2DMSArray tex; |
| // void main () {}} |
| // |
| // Note that the following defines an interface array multisampled texture which is not allowed |
| // in Dawn / WebGPU. |
| // |
| // %7 = OpTypeImage %float 2D 0 1 1 1 Unknown |
| // %_ptr_UniformConstant_7 = OpTypePointer UniformConstant %7 |
| // %tex = OpVariable %_ptr_UniformConstant_7 UniformConstant |
| const char* shader = R"( |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %main "main" |
| OpExecutionMode %main OriginUpperLeft |
| OpSource GLSL 450 |
| OpName %main "main" |
| OpName %tex "tex" |
| OpDecorate %tex DescriptorSet 0 |
| OpDecorate %tex Binding 0 |
| %void = OpTypeVoid |
| %3 = OpTypeFunction %void |
| %float = OpTypeFloat 32 |
| %7 = OpTypeImage %float 2D 0 1 1 1 Unknown |
| %_ptr_UniformConstant_7 = OpTypePointer UniformConstant %7 |
| %tex = OpVariable %_ptr_UniformConstant_7 UniformConstant |
| %main = OpFunction %void None %3 |
| %5 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| )"; |
| |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModuleFromASM(device, shader)); |
| } |
| |
| // Tests that shader module compilation messages can be queried. |
| TEST_F(ShaderModuleValidationTest, GetCompilationMessages) { |
| // This test works assuming ShaderModule is backed by a dawn::native::ShaderModuleBase, which |
| // is not the case on the wire. |
| DAWN_SKIP_TEST_IF(UsesWire()); |
| |
| wgpu::ShaderModule shaderModule = utils::CreateShaderModule(device, R"( |
| @fragment fn main() -> @location(0) vec4<f32> { |
| return vec4<f32>(0.0, 1.0, 0.0, 1.0); |
| })"); |
| |
| dawn::native::ShaderModuleBase* shaderModuleBase = dawn::native::FromAPI(shaderModule.Get()); |
| dawn::native::OwnedCompilationMessages* messages = shaderModuleBase->GetCompilationMessages(); |
| messages->ClearMessages(); |
| messages->AddMessageForTesting("Info Message"); |
| messages->AddMessageForTesting("Warning Message", wgpu::CompilationMessageType::Warning); |
| messages->AddMessageForTesting("Error Message", wgpu::CompilationMessageType::Error, 3, 4); |
| messages->AddMessageForTesting("Complete Message", wgpu::CompilationMessageType::Info, 3, 4, 5, |
| 6); |
| |
| auto callback = [](WGPUCompilationInfoRequestStatus status, const WGPUCompilationInfo* info, |
| void* userdata) { |
| ASSERT_EQ(WGPUCompilationInfoRequestStatus_Success, status); |
| ASSERT_NE(nullptr, info); |
| ASSERT_EQ(4u, info->messageCount); |
| |
| const WGPUCompilationMessage* message = &info->messages[0]; |
| ASSERT_STREQ("Info Message", message->message); |
| ASSERT_EQ(WGPUCompilationMessageType_Info, message->type); |
| ASSERT_EQ(0u, message->lineNum); |
| ASSERT_EQ(0u, message->linePos); |
| |
| message = &info->messages[1]; |
| ASSERT_STREQ("Warning Message", message->message); |
| ASSERT_EQ(WGPUCompilationMessageType_Warning, message->type); |
| ASSERT_EQ(0u, message->lineNum); |
| ASSERT_EQ(0u, message->linePos); |
| |
| message = &info->messages[2]; |
| ASSERT_STREQ("Error Message", message->message); |
| ASSERT_EQ(WGPUCompilationMessageType_Error, message->type); |
| ASSERT_EQ(3u, message->lineNum); |
| ASSERT_EQ(4u, message->linePos); |
| |
| message = &info->messages[3]; |
| ASSERT_STREQ("Complete Message", message->message); |
| ASSERT_EQ(WGPUCompilationMessageType_Info, message->type); |
| ASSERT_EQ(3u, message->lineNum); |
| ASSERT_EQ(4u, message->linePos); |
| ASSERT_EQ(5u, message->offset); |
| ASSERT_EQ(6u, message->length); |
| }; |
| |
| shaderModule.GetCompilationInfo(callback, nullptr); |
| } |
| |
| // Validate the maximum location of effective inter-stage variables cannot be greater than 14 |
| // (kMaxInterStageShaderComponents / 4 - 1). |
| TEST_F(ShaderModuleValidationTest, MaximumShaderIOLocations) { |
| auto CheckTestPipeline = [&](bool success, uint32_t maximumOutputLocation, |
| wgpu::ShaderStage failingShaderStage) { |
| // Build the ShaderIO struct containing variables up to maximumOutputLocation. |
| std::ostringstream stream; |
| stream << "struct ShaderIO {" << std::endl; |
| for (uint32_t location = 1; location <= maximumOutputLocation; ++location) { |
| stream << "@location(" << location << ") var" << location << ": f32," << std::endl; |
| } |
| |
| if (failingShaderStage == wgpu::ShaderStage::Vertex) { |
| stream << " @builtin(position) pos: vec4<f32>,"; |
| } |
| stream << "}\n"; |
| |
| std::string ioStruct = stream.str(); |
| |
| // Build the test pipeline. Note that it's not possible with just ASSERT_DEVICE_ERROR |
| // whether it is the vertex or fragment shader that fails. So instead we will look for the |
| // string "failingVertex" or "failingFragment" in the error message. |
| utils::ComboRenderPipelineDescriptor pDesc; |
| pDesc.cTargets[0].format = wgpu::TextureFormat::RGBA8Unorm; |
| |
| const char* errorMatcher = nullptr; |
| switch (failingShaderStage) { |
| case wgpu::ShaderStage::Vertex: { |
| errorMatcher = "failingVertex"; |
| pDesc.vertex.entryPoint = "failingVertex"; |
| pDesc.vertex.module = utils::CreateShaderModule(device, (ioStruct + R"( |
| @vertex fn failingVertex() -> ShaderIO { |
| var shaderIO : ShaderIO; |
| shaderIO.pos = vec4<f32>(0.0, 0.0, 0.0, 1.0); |
| return shaderIO; |
| } |
| )") |
| .c_str()); |
| pDesc.cFragment.module = utils::CreateShaderModule(device, R"( |
| @fragment fn main() -> @location(0) vec4<f32> { |
| return vec4<f32>(0.0); |
| } |
| )"); |
| break; |
| } |
| |
| case wgpu::ShaderStage::Fragment: { |
| errorMatcher = "failingFragment"; |
| pDesc.cFragment.entryPoint = "failingFragment"; |
| pDesc.cFragment.module = utils::CreateShaderModule(device, (ioStruct + R"( |
| @fragment fn failingFragment(io : ShaderIO) -> @location(0) vec4<f32> { |
| return vec4<f32>(0.0); |
| } |
| )") |
| .c_str()); |
| pDesc.vertex.module = utils::CreateShaderModule(device, R"( |
| @vertex fn main() -> @builtin(position) vec4<f32> { |
| return vec4<f32>(0.0); |
| } |
| )"); |
| break; |
| } |
| |
| default: |
| UNREACHABLE(); |
| } |
| |
| if (success) { |
| if (failingShaderStage == wgpu::ShaderStage::Vertex) { |
| // It is allowed that fragment inputs are a subset of the vertex output variables. |
| device.CreateRenderPipeline(&pDesc); |
| } else { |
| ASSERT_DEVICE_ERROR(device.CreateRenderPipeline(&pDesc), |
| testing::HasSubstr("The fragment input at location")); |
| } |
| } else { |
| ASSERT_DEVICE_ERROR(device.CreateRenderPipeline(&pDesc), |
| testing::HasSubstr(errorMatcher)); |
| } |
| }; |
| |
| // It is allowed to create a shader module with the maximum active vertex output location == |
| // (kMaxInterStageShaderVariables - 1); |
| CheckTestPipeline(true, kMaxInterStageShaderVariables - 1, wgpu::ShaderStage::Vertex); |
| |
| // It isn't allowed to create a shader module with the maximum active vertex output location == |
| // kMaxInterStageShaderVariables; |
| CheckTestPipeline(false, kMaxInterStageShaderVariables, wgpu::ShaderStage::Vertex); |
| |
| // It is allowed to create a shader module with the maximum active fragment input location == |
| // (kMaxInterStageShaderVariables - 1); |
| CheckTestPipeline(true, kMaxInterStageShaderVariables - 1, wgpu::ShaderStage::Fragment); |
| |
| // It isn't allowed to create a shader module with the maximum active vertex output location == |
| // kMaxInterStageShaderVariables; |
| CheckTestPipeline(false, kMaxInterStageShaderVariables, wgpu::ShaderStage::Fragment); |
| } |
| |
| // Validate the maximum number of total inter-stage user-defined variable component count and |
| // built-in variables cannot exceed kMaxInterStageShaderComponents. |
| TEST_F(ShaderModuleValidationTest, MaximumInterStageShaderComponents) { |
| auto CheckTestPipeline = [&](bool success, |
| uint32_t totalUserDefinedInterStageShaderComponentCount, |
| wgpu::ShaderStage failingShaderStage, |
| const char* extraBuiltInDeclarations = "", |
| bool usePointListAsPrimitiveType = false) { |
| // Build the ShaderIO struct containing totalUserDefinedInterStageShaderComponentCount |
| // components. Components are added in two parts, a bunch of vec4s, then one additional |
| // variable for the remaining components. |
| std::ostringstream stream; |
| stream << "struct ShaderIO {" << std::endl << extraBuiltInDeclarations << std::endl; |
| uint32_t vec4InputLocations = totalUserDefinedInterStageShaderComponentCount / 4; |
| |
| for (uint32_t location = 0; location < vec4InputLocations; ++location) { |
| stream << "@location(" << location << ") var" << location << ": vec4<f32>," |
| << std::endl; |
| } |
| |
| uint32_t lastComponentCount = totalUserDefinedInterStageShaderComponentCount % 4; |
| if (lastComponentCount > 0) { |
| stream << "@location(" << vec4InputLocations << ") var" << vec4InputLocations << ": "; |
| if (lastComponentCount == 1) { |
| stream << "f32,"; |
| } else { |
| stream << " vec" << lastComponentCount << "<f32>,"; |
| } |
| stream << std::endl; |
| } |
| |
| if (failingShaderStage == wgpu::ShaderStage::Vertex) { |
| stream << " @builtin(position) pos: vec4<f32>,"; |
| } |
| stream << "}\n"; |
| |
| std::string ioStruct = stream.str(); |
| |
| // Build the test pipeline. Note that it's not possible with just ASSERT_DEVICE_ERROR |
| // whether it is the vertex or fragment shader that fails. So instead we will look for the |
| // string "failingVertex" or "failingFragment" in the error message. |
| utils::ComboRenderPipelineDescriptor pDesc; |
| pDesc.cTargets[0].format = wgpu::TextureFormat::RGBA8Unorm; |
| if (usePointListAsPrimitiveType) { |
| pDesc.primitive.topology = wgpu::PrimitiveTopology::PointList; |
| } else { |
| pDesc.primitive.topology = wgpu::PrimitiveTopology::TriangleList; |
| } |
| |
| const char* errorMatcher = nullptr; |
| switch (failingShaderStage) { |
| case wgpu::ShaderStage::Vertex: { |
| if (usePointListAsPrimitiveType) { |
| errorMatcher = "PointList"; |
| } else { |
| errorMatcher = "failingVertex"; |
| } |
| pDesc.vertex.entryPoint = "failingVertex"; |
| pDesc.vertex.module = utils::CreateShaderModule(device, (ioStruct + R"( |
| @vertex fn failingVertex() -> ShaderIO { |
| var shaderIO : ShaderIO; |
| shaderIO.pos = vec4<f32>(0.0, 0.0, 0.0, 1.0); |
| return shaderIO; |
| } |
| )") |
| .c_str()); |
| pDesc.cFragment.module = utils::CreateShaderModule(device, R"( |
| @fragment fn main() -> @location(0) vec4<f32> { |
| return vec4<f32>(0.0); |
| } |
| )"); |
| break; |
| } |
| |
| case wgpu::ShaderStage::Fragment: { |
| errorMatcher = "failingFragment"; |
| pDesc.cFragment.entryPoint = "failingFragment"; |
| pDesc.cFragment.module = utils::CreateShaderModule(device, (ioStruct + R"( |
| @fragment fn failingFragment(io : ShaderIO) -> @location(0) vec4<f32> { |
| return vec4<f32>(0.0); |
| } |
| )") |
| .c_str()); |
| pDesc.vertex.module = utils::CreateShaderModule(device, R"( |
| @vertex fn main() -> @builtin(position) vec4<f32> { |
| return vec4<f32>(0.0); |
| } |
| )"); |
| break; |
| } |
| |
| default: |
| UNREACHABLE(); |
| } |
| |
| if (success) { |
| if (failingShaderStage == wgpu::ShaderStage::Vertex) { |
| // It is allowed that fragment inputs are a subset of the vertex output variables. |
| device.CreateRenderPipeline(&pDesc); |
| } else { |
| ASSERT_DEVICE_ERROR(device.CreateRenderPipeline(&pDesc), |
| testing::HasSubstr("The fragment input at location")); |
| } |
| } else { |
| ASSERT_DEVICE_ERROR(device.CreateRenderPipeline(&pDesc), |
| testing::HasSubstr(errorMatcher)); |
| } |
| }; |
| |
| // Verify when there is no input builtin variable in a fragment shader, the total user-defined |
| // input component count must be less than kMaxInterStageShaderComponents. |
| { |
| CheckTestPipeline(true, kMaxInterStageShaderComponents, wgpu::ShaderStage::Fragment); |
| CheckTestPipeline(false, kMaxInterStageShaderComponents + 1, wgpu::ShaderStage::Fragment); |
| } |
| |
| // Verify the total user-defined vertex output component count must be less than |
| // kMaxInterStageShaderComponents. |
| { |
| CheckTestPipeline(true, kMaxInterStageShaderComponents, wgpu::ShaderStage::Vertex); |
| CheckTestPipeline(false, kMaxInterStageShaderComponents + 1, wgpu::ShaderStage::Vertex); |
| } |
| |
| // Verify the total user-defined vertex output component count must be less than |
| // (kMaxInterStageShaderComponents - 1) when the primitive topology is PointList. |
| { |
| constexpr bool kUsePointListAsPrimitiveTopology = true; |
| const char* kExtraBuiltins = ""; |
| CheckTestPipeline(true, kMaxInterStageShaderComponents - 1, wgpu::ShaderStage::Vertex, |
| kExtraBuiltins, kUsePointListAsPrimitiveTopology); |
| CheckTestPipeline(false, kMaxInterStageShaderComponents, wgpu::ShaderStage::Vertex, |
| kExtraBuiltins, kUsePointListAsPrimitiveTopology); |
| } |
| |
| // @builtin(position) in fragment shaders shouldn't be counted into the maximum inter-stage |
| // component count. |
| { |
| CheckTestPipeline(true, kMaxInterStageShaderComponents, wgpu::ShaderStage::Fragment, |
| "@builtin(position) fragCoord : vec4<f32>,"); |
| } |
| |
| // @builtin(front_facing) should be counted into the maximum inter-stage component count. |
| { |
| CheckTestPipeline(true, kMaxInterStageShaderComponents - 1, wgpu::ShaderStage::Fragment, |
| "@builtin(front_facing) frontFacing : bool,"); |
| CheckTestPipeline(false, kMaxInterStageShaderComponents, wgpu::ShaderStage::Fragment, |
| "@builtin(front_facing) frontFacing : bool,"); |
| } |
| |
| // @builtin(sample_index) should be counted into the maximum inter-stage component count. |
| { |
| CheckTestPipeline(true, kMaxInterStageShaderComponents - 1, wgpu::ShaderStage::Fragment, |
| "@builtin(sample_index) sampleIndex : u32,"); |
| CheckTestPipeline(false, kMaxInterStageShaderComponents, wgpu::ShaderStage::Fragment, |
| "@builtin(sample_index) sampleIndex : u32,"); |
| } |
| |
| // @builtin(sample_mask) should be counted into the maximum inter-stage component count. |
| { |
| CheckTestPipeline(true, kMaxInterStageShaderComponents - 1, wgpu::ShaderStage::Fragment, |
| "@builtin(sample_mask) sampleMask : u32,"); |
| CheckTestPipeline(false, kMaxInterStageShaderComponents, wgpu::ShaderStage::Fragment, |
| "@builtin(sample_mask) sampleMask : u32,"); |
| } |
| } |
| |
| // Test that numeric ID must be unique |
| TEST_F(ShaderModuleValidationTest, OverridableConstantsNumericIDConflicts) { |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| @id(1234) override c0: u32; |
| @id(1234) override c1: u32; |
| |
| struct Buf { |
| data : array<u32, 2> |
| } |
| |
| @group(0) @binding(0) var<storage, read_write> buf : Buf; |
| |
| @compute @workgroup_size(1) fn main() { |
| // make sure the overridable constants are not optimized out |
| buf.data[0] = c0; |
| buf.data[1] = c1; |
| })")); |
| } |
| |
| // Test that @binding must be less then kMaxBindingsPerBindGroup |
| TEST_F(ShaderModuleValidationTest, MaxBindingNumber) { |
| static_assert(kMaxBindingsPerBindGroup == 640); |
| |
| wgpu::ComputePipelineDescriptor desc; |
| desc.compute.entryPoint = "main"; |
| |
| // kMaxBindingsPerBindGroup-1 is valid. |
| desc.compute.module = utils::CreateShaderModule(device, R"( |
| @group(0) @binding(639) var s : sampler; |
| @compute @workgroup_size(1) fn main() { |
| _ = s; |
| } |
| )"); |
| device.CreateComputePipeline(&desc); |
| |
| // kMaxBindingsPerBindGroup is an error |
| desc.compute.module = utils::CreateShaderModule(device, R"( |
| @group(0) @binding(640) var s : sampler; |
| @compute @workgroup_size(1) fn main() { |
| _ = s; |
| } |
| )"); |
| ASSERT_DEVICE_ERROR(device.CreateComputePipeline(&desc)); |
| } |
| |
| // Test that missing decorations on shader IO or bindings causes a validation error. |
| TEST_F(ShaderModuleValidationTest, MissingDecorations) { |
| // Vertex input. |
| utils::CreateShaderModule(device, R"( |
| @vertex fn main(@location(0) a : vec4<f32>) -> @builtin(position) vec4<f32> { |
| return vec4(1.0); |
| } |
| )"); |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| @vertex fn main(a : vec4<f32>) -> @builtin(position) vec4<f32> { |
| return vec4(1.0); |
| } |
| )")); |
| |
| // Vertex output |
| utils::CreateShaderModule(device, R"( |
| struct Output { |
| @builtin(position) pos : vec4<f32>, |
| @location(0) a : f32, |
| } |
| @vertex fn main() -> Output { |
| var output : Output; |
| return output; |
| } |
| )"); |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| struct Output { |
| @builtin(position) pos : vec4<f32>, |
| a : f32, |
| } |
| @vertex fn main() -> Output { |
| var output : Output; |
| return output; |
| } |
| )")); |
| |
| // Fragment input |
| utils::CreateShaderModule(device, R"( |
| @fragment fn main(@location(0) a : vec4<f32>) -> @location(0) f32 { |
| return 1.0; |
| } |
| )"); |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| @fragment fn main(a : vec4<f32>) -> @location(0) f32 { |
| return 1.0; |
| } |
| )")); |
| |
| // Fragment input |
| utils::CreateShaderModule(device, R"( |
| @fragment fn main() -> @location(0) f32 { |
| return 1.0; |
| } |
| )"); |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| @fragment fn main() -> f32 { |
| return 1.0; |
| } |
| )")); |
| |
| // Binding decorations |
| utils::CreateShaderModule(device, R"( |
| @group(0) @binding(0) var s : sampler; |
| @fragment fn main() -> @location(0) f32 { |
| _ = s; |
| return 1.0; |
| } |
| )"); |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| @binding(0) var s : sampler; |
| @fragment fn main() -> @location(0) f32 { |
| _ = s; |
| return 1.0; |
| } |
| )")); |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| @group(0) var s : sampler; |
| @fragment fn main() -> @location(0) f32 { |
| _ = s; |
| return 1.0; |
| } |
| )")); |
| } |
| |
| // Test that WGSL extension used by enable directives must be allowed by WebGPU. |
| TEST_F(ShaderModuleValidationTest, ExtensionMustBeAllowed) { |
| ASSERT_DEVICE_ERROR(utils::CreateShaderModule(device, R"( |
| enable f16; |
| |
| @compute @workgroup_size(1) fn main() {})")); |
| } |
