1#!amber 2 3# Copyright 2021 Google LLC 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17 18# A test for a coverage-gap found by the GraphicsFuzz project. 19 20# Short description: A fragment shader that covers specific NIR code paths 21 22# The test passes because the shader always writes red. 23 24SHADER vertex variant_vertex_shader PASSTHROUGH 25 26# variant_fragment_shader is derived from the following GLSL: 27# #version 320 es 28# 29# #define _int_0 _GLF_uniform_int_values[0] 30# #define _float_1_0 _GLF_uniform_float_values[0] 31# 32# precision highp float; 33# precision highp int; 34# 35# // Contents of _GLF_uniform_float_values: 1.0 36# layout(set = 0, binding = 0) uniform buf0 37# { 38# float _GLF_uniform_float_values[1]; 39# }; 40# // Contents of _GLF_uniform_int_values: 0 41# layout(set = 0, binding = 1) uniform buf1 42# { 43# int _GLF_uniform_int_values[1]; 44# }; 45# layout(location = 0) out vec4 _GLF_color; 46# 47# void main() 48# { 49# vec4 v = clamp(cosh(vec4(1.0)), _float_1_0, 1.0); 50# _GLF_color = vec4(v.x, _int_0, _int_0, v.z); 51# } 52SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 53; SPIR-V 54; Version: 1.0 55; Generator: Khronos Glslang Reference Front End; 10 56; Bound: 48 57; Schema: 0 58 OpCapability Shader 59 %1 = OpExtInstImport "GLSL.std.450" 60 OpMemoryModel Logical GLSL450 61 OpEntryPoint Fragment %4 "main" %28 62 OpExecutionMode %4 OriginUpperLeft 63 OpSource ESSL 320 64 OpName %4 "main" 65 OpName %9 "v" 66 OpName %16 "buf0" 67 OpMemberName %16 0 "_GLF_uniform_float_values" 68 OpName %18 "" 69 OpName %28 "_GLF_color" 70 OpName %34 "buf1" 71 OpMemberName %34 0 "_GLF_uniform_int_values" 72 OpName %36 "" 73 OpDecorate %15 ArrayStride 16 74 OpMemberDecorate %16 0 Offset 0 75 OpDecorate %16 Block 76 OpDecorate %18 DescriptorSet 0 77 OpDecorate %18 Binding 0 78 OpDecorate %28 Location 0 79 OpDecorate %33 ArrayStride 16 80 OpMemberDecorate %34 0 Offset 0 81 OpDecorate %34 Block 82 OpDecorate %36 DescriptorSet 0 83 OpDecorate %36 Binding 1 84 %2 = OpTypeVoid 85 %3 = OpTypeFunction %2 86 %6 = OpTypeFloat 32 87 %7 = OpTypeVector %6 4 88 %8 = OpTypePointer Function %7 89 %10 = OpConstant %6 1 90 %11 = OpConstantComposite %7 %10 %10 %10 %10 91 %13 = OpTypeInt 32 0 92 %14 = OpConstant %13 1 93 %15 = OpTypeArray %6 %14 94 %16 = OpTypeStruct %15 95 %17 = OpTypePointer Uniform %16 96 %18 = OpVariable %17 Uniform 97 %19 = OpTypeInt 32 1 98 %20 = OpConstant %19 0 99 %21 = OpTypePointer Uniform %6 100 %27 = OpTypePointer Output %7 101 %28 = OpVariable %27 Output 102 %29 = OpConstant %13 0 103 %30 = OpTypePointer Function %6 104 %33 = OpTypeArray %19 %14 105 %34 = OpTypeStruct %33 106 %35 = OpTypePointer Uniform %34 107 %36 = OpVariable %35 Uniform 108 %37 = OpTypePointer Uniform %19 109 %44 = OpConstant %13 2 110 %4 = OpFunction %2 None %3 111 %5 = OpLabel 112 %9 = OpVariable %8 Function 113 %12 = OpExtInst %7 %1 Cosh %11 114 %22 = OpAccessChain %21 %18 %20 %20 115 %23 = OpLoad %6 %22 116 %24 = OpCompositeConstruct %7 %23 %23 %23 %23 117 %25 = OpCompositeConstruct %7 %10 %10 %10 %10 118 %26 = OpExtInst %7 %1 FClamp %12 %24 %25 119 OpStore %9 %26 120 %31 = OpAccessChain %30 %9 %29 121 %32 = OpLoad %6 %31 122 %38 = OpAccessChain %37 %36 %20 %20 123 %39 = OpLoad %19 %38 124 %40 = OpConvertSToF %6 %39 125 %41 = OpAccessChain %37 %36 %20 %20 126 %42 = OpLoad %19 %41 127 %43 = OpConvertSToF %6 %42 128 %45 = OpAccessChain %30 %9 %44 129 %46 = OpLoad %6 %45 130 %47 = OpCompositeConstruct %7 %32 %40 %43 %46 131 OpStore %28 %47 132 OpReturn 133 OpFunctionEnd 134END 135 136# uniforms for variant 137 138# _GLF_uniform_int_values 139BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 140 0 141END 142# _GLF_uniform_float_values 143BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA 144 1.0 145END 146 147BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 148 149PIPELINE graphics variant_pipeline 150 ATTACH variant_vertex_shader 151 ATTACH variant_fragment_shader 152 FRAMEBUFFER_SIZE 256 256 153 BIND BUFFER variant_framebuffer AS color LOCATION 0 154 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 1 155 BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 0 156END 157CLEAR_COLOR variant_pipeline 0 0 0 255 158 159CLEAR variant_pipeline 160RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 161 162EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 163