#!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 SPIR-V reader 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_0 _GLF_uniform_int_values[0] # #define _int_1 _GLF_uniform_int_values[1] # #define _float_1_0 _GLF_uniform_float_values[0] # # precision highp int; # precision highp float; # # // Contents of _GLF_uniform_int_values: [0, 1] # 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]; # }; # layout(location = 0) out vec4 _GLF_color; # # // Contents of m: [1.0, 5.0, 3.0, 7.0, 9.0, 6.0, 7.0, 8.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0] # layout(push_constant) uniform buf_push # { # mat4 m; # }; # # void main() # { # // Always true. # if(m[_int_0][_int_0] == _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; 10 ; Bound: 61 ; Schema: 0 OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %4 "main" %41 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 320 OpName %4 "main" OpName %9 "buf_push" OpMemberName %9 0 "m" OpName %11 "" OpName %17 "buf0" OpMemberName %17 0 "_GLF_uniform_int_values" OpName %19 "" OpName %30 "buf1" OpMemberName %30 0 "_GLF_uniform_float_values" OpName %32 "" OpName %41 "_GLF_color" OpMemberDecorate %9 0 ColMajor OpMemberDecorate %9 0 Offset 0 OpMemberDecorate %9 0 MatrixStride 16 OpDecorate %9 Block OpDecorate %16 ArrayStride 16 OpMemberDecorate %17 0 Offset 0 OpDecorate %17 Block OpDecorate %19 DescriptorSet 0 OpDecorate %19 Binding 0 OpDecorate %29 ArrayStride 16 OpMemberDecorate %30 0 Offset 0 OpDecorate %30 Block OpDecorate %32 DescriptorSet 0 OpDecorate %32 Binding 1 OpDecorate %41 Location 0 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeFloat 32 %7 = OpTypeVector %6 4 %8 = OpTypeMatrix %7 4 %9 = OpTypeStruct %8 %10 = OpTypePointer PushConstant %9 %11 = OpVariable %10 PushConstant %12 = OpTypeInt 32 1 %13 = OpConstant %12 0 %14 = OpTypeInt 32 0 %15 = OpConstant %14 2 %16 = OpTypeArray %12 %15 %17 = OpTypeStruct %16 %18 = OpTypePointer Uniform %17 %19 = OpVariable %18 Uniform %20 = OpTypePointer Uniform %12 %25 = OpTypePointer PushConstant %6 %28 = OpConstant %14 1 %29 = OpTypeArray %6 %28 %30 = OpTypeStruct %29 %31 = OpTypePointer Uniform %30 %32 = OpVariable %31 Uniform %33 = OpTypePointer Uniform %6 %36 = OpTypeBool %40 = OpTypePointer Output %7 %41 = OpVariable %40 Output %42 = OpConstant %12 1 %4 = OpFunction %2 None %3 %5 = OpLabel %21 = OpAccessChain %20 %19 %13 %13 %22 = OpLoad %12 %21 %23 = OpAccessChain %20 %19 %13 %13 %24 = OpLoad %12 %23 %26 = OpAccessChain %25 %11 %13 %22 %24 %27 = OpLoad %6 %26 %34 = OpAccessChain %33 %32 %13 %13 %35 = OpLoad %6 %34 %37 = OpFOrdEqual %36 %27 %35 OpSelectionMerge %39 None OpBranchConditional %37 %38 %56 %38 = OpLabel %43 = OpAccessChain %20 %19 %13 %42 %44 = OpLoad %12 %43 %45 = OpConvertSToF %6 %44 %46 = OpAccessChain %20 %19 %13 %13 %47 = OpLoad %12 %46 %48 = OpConvertSToF %6 %47 %49 = OpAccessChain %20 %19 %13 %13 %50 = OpLoad %12 %49 %51 = OpConvertSToF %6 %50 %52 = OpAccessChain %20 %19 %13 %42 %53 = OpLoad %12 %52 %54 = OpConvertSToF %6 %53 %55 = OpCompositeConstruct %7 %45 %48 %51 %54 OpStore %41 %55 OpBranch %39 %56 = OpLabel %57 = OpAccessChain %20 %19 %13 %13 %58 = OpLoad %12 %57 %59 = OpConvertSToF %6 %58 %60 = OpCompositeConstruct %7 %59 %59 %59 %59 OpStore %41 %60 OpBranch %39 %39 = OpLabel OpReturn OpFunctionEnd END # uniforms for variant # m BUFFER variant_m DATA_TYPE mat4x4[] STD140 DATA 1.0 5.0 3.0 7.0 9.0 6.0 7.0 8.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 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 0 1 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_m AS push_constant 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