#!amber # Copyright 2020 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 a specific value tracking path # 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 310 es # #define _int_1 _GLF_uniform_int_values[0] # #define _int_0 _GLF_uniform_int_values[1] # #define _uint_1065353216 _GLF_uniform_uint_values[0] # #define _float_1_0 _GLF_uniform_float_values[0] # # precision highp float; # precision highp int; # # // Contents of _GLF_uniform_int_values: [1, 0] # layout(set = 0, binding = 0) uniform buf0 # { # int _GLF_uniform_int_values[2]; # }; # # // Contents of _GLF_uniform_float_values: 1.0 # layout(set = 0, binding = 1) uniform buf1 # { # float _GLF_uniform_float_values[1]; # }; # # // Contents of _GLF_uniform_uint_values: 1065353216 # layout(set = 0, binding = 2) uniform buf2 # { # uint _GLF_uniform_uint_values[1]; # }; # # layout(location = 0) out vec4 _GLF_color; # # void main() # { # float f = uintBitsToFloat(max(100u, _uint_1065353216)); # if (f == _float_1_0) # { # _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); # } # else # { # _GLF_color = vec4(_int_0); # } # } SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 ; SPIR-V ; Version: 1.0 ; Generator: Khronos Glslang Reference Front End; 8 ; Bound: 63 ; Schema: 0 OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %4 "main" %37 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 310 OpName %4 "main" OpName %8 "f" OpName %13 "buf2" OpMemberName %13 0 "_GLF_uniform_uint_values" OpName %15 "" OpName %25 "buf1" OpMemberName %25 0 "_GLF_uniform_float_values" OpName %27 "" OpName %37 "_GLF_color" OpName %40 "buf0" OpMemberName %40 0 "_GLF_uniform_int_values" OpName %42 "" OpDecorate %12 ArrayStride 16 OpMemberDecorate %13 0 Offset 0 OpDecorate %13 Block OpDecorate %15 DescriptorSet 0 OpDecorate %15 Binding 2 OpDecorate %24 ArrayStride 16 OpMemberDecorate %25 0 Offset 0 OpDecorate %25 Block OpDecorate %27 DescriptorSet 0 OpDecorate %27 Binding 1 OpDecorate %37 Location 0 OpDecorate %39 ArrayStride 16 OpMemberDecorate %40 0 Offset 0 OpDecorate %40 Block OpDecorate %42 DescriptorSet 0 OpDecorate %42 Binding 0 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeFloat 32 %7 = OpTypePointer Function %6 %9 = OpTypeInt 32 0 %10 = OpConstant %9 100 %11 = OpConstant %9 1 %12 = OpTypeArray %9 %11 %13 = OpTypeStruct %12 %14 = OpTypePointer Uniform %13 %15 = OpVariable %14 Uniform %16 = OpTypeInt 32 1 %17 = OpConstant %16 0 %18 = OpTypePointer Uniform %9 %24 = OpTypeArray %6 %11 %25 = OpTypeStruct %24 %26 = OpTypePointer Uniform %25 %27 = OpVariable %26 Uniform %28 = OpTypePointer Uniform %6 %31 = OpTypeBool %35 = OpTypeVector %6 4 %36 = OpTypePointer Output %35 %37 = OpVariable %36 Output %38 = OpConstant %9 2 %39 = OpTypeArray %16 %38 %40 = OpTypeStruct %39 %41 = OpTypePointer Uniform %40 %42 = OpVariable %41 Uniform %43 = OpTypePointer Uniform %16 %47 = OpConstant %16 1 %4 = OpFunction %2 None %3 %5 = OpLabel %8 = OpVariable %7 Function %19 = OpAccessChain %18 %15 %17 %17 %20 = OpLoad %9 %19 %21 = OpExtInst %9 %1 UMax %10 %20 %22 = OpBitcast %6 %21 OpStore %8 %22 %23 = OpLoad %6 %8 %29 = OpAccessChain %28 %27 %17 %17 %30 = OpLoad %6 %29 %32 = OpFOrdEqual %31 %23 %30 OpSelectionMerge %34 None OpBranchConditional %32 %33 %58 %33 = OpLabel %44 = OpAccessChain %43 %42 %17 %17 %45 = OpLoad %16 %44 %46 = OpConvertSToF %6 %45 %48 = OpAccessChain %43 %42 %17 %47 %49 = OpLoad %16 %48 %50 = OpConvertSToF %6 %49 %51 = OpAccessChain %43 %42 %17 %47 %52 = OpLoad %16 %51 %53 = OpConvertSToF %6 %52 %54 = OpAccessChain %43 %42 %17 %17 %55 = OpLoad %16 %54 %56 = OpConvertSToF %6 %55 %57 = OpCompositeConstruct %35 %46 %50 %53 %56 OpStore %37 %57 OpBranch %34 %58 = OpLabel %59 = OpAccessChain %43 %42 %17 %47 %60 = OpLoad %16 %59 %61 = OpConvertSToF %6 %60 %62 = OpCompositeConstruct %35 %61 %61 %61 %61 OpStore %37 %62 OpBranch %34 %34 = OpLabel OpReturn OpFunctionEnd END # uniforms for variant # _GLF_uniform_uint_values BUFFER variant__GLF_uniform_uint_values DATA_TYPE int32[] STD140 DATA 1065353216 END # _GLF_uniform_float_values BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA 1.0 END # _GLF_uniform_int_values BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 1 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__GLF_uniform_uint_values AS uniform DESCRIPTOR_SET 0 BINDING 2 BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 1 BIND BUFFER variant__GLF_uniform_int_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