| #!amber |
| |
| # Copyright 2021 Google LLC |
| # |
| # 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. |
| |
| |
| # A test for a coverage-gap found by the GraphicsFuzz project. |
| |
| # Short description: A fragment shader that covers specific BRW code paths |
| |
| # The test passes because the shader always writes red. |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # #define _int_100 _GLF_uniform_int_values[0] |
| # #define _int_0 _GLF_uniform_int_values[1] |
| # #define _float_10_0 _GLF_uniform_float_values[0] |
| # |
| # precision highp int; |
| # precision highp float; |
| # |
| # // Contents of _GLF_uniform_float_values: 10.0 |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # float _GLF_uniform_float_values[1]; |
| # }; |
| # // Contents of _GLF_uniform_int_values: [100, 0] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # int _GLF_uniform_int_values[2]; |
| # }; |
| # // Contents of injectionSwitch: [0.0, 1.0] |
| # layout(set = 0, binding = 2) uniform buf2 |
| # { |
| # vec2 injectionSwitch; |
| # }; |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # // To hit the coverage points this value cannot |
| # // be changed later. |
| # _GLF_color = vec4(1, 0, 0, 1); |
| # |
| # for (int i = _int_0; i < _int_100; i++) |
| # { |
| # if (i != _int_0) |
| # { |
| # return; |
| # } |
| # } |
| # |
| # // Execution never reaches this point. |
| # if (gl_FragCoord.y < _float_10_0) |
| # { |
| # return; |
| # } |
| # _GLF_color = vec4(vec3(1.0), injectionSwitch.y); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 75 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %9 %47 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %9 "_GLF_color" |
| OpName %15 "i" |
| OpName %19 "buf1" |
| OpMemberName %19 0 "_GLF_uniform_int_values" |
| OpName %21 "" |
| OpName %47 "gl_FragCoord" |
| OpName %53 "buf0" |
| OpMemberName %53 0 "_GLF_uniform_float_values" |
| OpName %55 "" |
| OpName %66 "buf2" |
| OpMemberName %66 0 "injectionSwitch" |
| OpName %68 "" |
| OpDecorate %9 Location 0 |
| OpDecorate %18 ArrayStride 16 |
| OpMemberDecorate %19 0 Offset 0 |
| OpDecorate %19 Block |
| OpDecorate %21 DescriptorSet 0 |
| OpDecorate %21 Binding 1 |
| OpDecorate %47 BuiltIn FragCoord |
| OpDecorate %52 ArrayStride 16 |
| OpMemberDecorate %53 0 Offset 0 |
| OpDecorate %53 Block |
| OpDecorate %55 DescriptorSet 0 |
| OpDecorate %55 Binding 0 |
| OpMemberDecorate %66 0 Offset 0 |
| OpDecorate %66 Block |
| OpDecorate %68 DescriptorSet 0 |
| OpDecorate %68 Binding 2 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 4 |
| %8 = OpTypePointer Output %7 |
| %9 = OpVariable %8 Output |
| %10 = OpConstant %6 1 |
| %11 = OpConstant %6 0 |
| %12 = OpConstantComposite %7 %10 %11 %11 %10 |
| %13 = OpTypeInt 32 1 |
| %14 = OpTypePointer Function %13 |
| %16 = OpTypeInt 32 0 |
| %17 = OpConstant %16 2 |
| %18 = OpTypeArray %13 %17 |
| %19 = OpTypeStruct %18 |
| %20 = OpTypePointer Uniform %19 |
| %21 = OpVariable %20 Uniform |
| %22 = OpConstant %13 0 |
| %23 = OpConstant %13 1 |
| %24 = OpTypePointer Uniform %13 |
| %35 = OpTypeBool |
| %46 = OpTypePointer Input %7 |
| %47 = OpVariable %46 Input |
| %48 = OpConstant %16 1 |
| %49 = OpTypePointer Input %6 |
| %52 = OpTypeArray %6 %48 |
| %53 = OpTypeStruct %52 |
| %54 = OpTypePointer Uniform %53 |
| %55 = OpVariable %54 Uniform |
| %56 = OpTypePointer Uniform %6 |
| %63 = OpTypeVector %6 3 |
| %64 = OpConstantComposite %63 %10 %10 %10 |
| %65 = OpTypeVector %6 2 |
| %66 = OpTypeStruct %65 |
| %67 = OpTypePointer Uniform %66 |
| %68 = OpVariable %67 Uniform |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %15 = OpVariable %14 Function |
| OpStore %9 %12 |
| %25 = OpAccessChain %24 %21 %22 %23 |
| %26 = OpLoad %13 %25 |
| OpStore %15 %26 |
| OpBranch %27 |
| %27 = OpLabel |
| OpLoopMerge %29 %30 None |
| OpBranch %31 |
| %31 = OpLabel |
| %32 = OpLoad %13 %15 |
| %33 = OpAccessChain %24 %21 %22 %22 |
| %34 = OpLoad %13 %33 |
| %36 = OpSLessThan %35 %32 %34 |
| OpBranchConditional %36 %28 %29 |
| %28 = OpLabel |
| %37 = OpLoad %13 %15 |
| %38 = OpAccessChain %24 %21 %22 %23 |
| %39 = OpLoad %13 %38 |
| %40 = OpINotEqual %35 %37 %39 |
| OpSelectionMerge %42 None |
| OpBranchConditional %40 %41 %42 |
| %41 = OpLabel |
| OpReturn |
| %42 = OpLabel |
| OpBranch %30 |
| %30 = OpLabel |
| %44 = OpLoad %13 %15 |
| %45 = OpIAdd %13 %44 %23 |
| OpStore %15 %45 |
| OpBranch %27 |
| %29 = OpLabel |
| %50 = OpAccessChain %49 %47 %48 |
| %51 = OpLoad %6 %50 |
| %57 = OpAccessChain %56 %55 %22 %22 |
| %58 = OpLoad %6 %57 |
| %59 = OpFOrdLessThan %35 %51 %58 |
| OpSelectionMerge %61 None |
| OpBranchConditional %59 %60 %61 |
| %60 = OpLabel |
| OpReturn |
| %61 = OpLabel |
| %69 = OpAccessChain %56 %68 %22 %48 |
| %70 = OpLoad %6 %69 |
| %71 = OpCompositeExtract %6 %64 0 |
| %72 = OpCompositeExtract %6 %64 1 |
| %73 = OpCompositeExtract %6 %64 2 |
| %74 = OpCompositeConstruct %7 %71 %72 %73 %70 |
| OpStore %9 %74 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # injectionSwitch |
| BUFFER variant_injectionSwitch DATA_TYPE vec2<float> STD140 DATA |
| 0.0 1.0 |
| END |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 100 0 |
| END |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 10.0 |
| END |
| |
| BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM |
| |
| PIPELINE graphics variant_pipeline |
| ATTACH variant_vertex_shader |
| ATTACH variant_fragment_shader |
| FRAMEBUFFER_SIZE 256 256 |
| BIND BUFFER variant_framebuffer AS color LOCATION 0 |
| BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 2 |
| BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 1 |
| BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 0 |
| END |
| CLEAR_COLOR variant_pipeline 0 0 0 255 |
| |
| CLEAR variant_pipeline |
| RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 |
| |
| EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 |