1#!amber 2 3# Copyright 2020 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 a specific selection DAG code path 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 310 es 28# #define _int_1 _GLF_uniform_int_values[0] 29# #define _int_0 _GLF_uniform_int_values[1] 30# 31# precision highp float; 32# precision highp int; 33# 34# // Contents of _GLF_uniform_int_values: [1, 0] 35# layout(set = 0, binding = 0) uniform buf0 36# { 37# int _GLF_uniform_int_values[2]; 38# }; 39# 40# layout(location = 0) out vec4 _GLF_color; 41# 42# void main() 43# { 44# _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); 45# vec4 v = _GLF_color; 46# _GLF_color = vec4(0); 47# _GLF_color = v; 48# } 49SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 50; SPIR-V 51; Version: 1.0 52; Generator: Khronos Glslang Reference Front End; 8 53; Bound: 39 54; Schema: 0 55 OpCapability Shader 56 %1 = OpExtInstImport "GLSL.std.450" 57 OpMemoryModel Logical GLSL450 58 OpEntryPoint Fragment %4 "main" %9 59 OpExecutionMode %4 OriginUpperLeft 60 OpSource ESSL 310 61 OpName %4 "main" 62 OpName %9 "_GLF_color" 63 OpName %14 "buf0" 64 OpMemberName %14 0 "_GLF_uniform_int_values" 65 OpName %16 "" 66 OpName %34 "v" 67 OpDecorate %9 Location 0 68 OpDecorate %13 ArrayStride 16 69 OpMemberDecorate %14 0 Offset 0 70 OpDecorate %14 Block 71 OpDecorate %16 DescriptorSet 0 72 OpDecorate %16 Binding 0 73 %2 = OpTypeVoid 74 %3 = OpTypeFunction %2 75 %6 = OpTypeFloat 32 76 %7 = OpTypeVector %6 4 77 %8 = OpTypePointer Output %7 78 %9 = OpVariable %8 Output 79 %10 = OpTypeInt 32 1 80 %11 = OpTypeInt 32 0 81 %12 = OpConstant %11 2 82 %13 = OpTypeArray %10 %12 83 %14 = OpTypeStruct %13 84 %15 = OpTypePointer Uniform %14 85 %16 = OpVariable %15 Uniform 86 %17 = OpConstant %10 0 87 %18 = OpTypePointer Uniform %10 88 %22 = OpConstant %10 1 89 %33 = OpTypePointer Function %7 90 %36 = OpConstant %6 0 91 %37 = OpConstantComposite %7 %36 %36 %36 %36 92 %4 = OpFunction %2 None %3 93 %5 = OpLabel 94 %34 = OpVariable %33 Function 95 %19 = OpAccessChain %18 %16 %17 %17 96 %20 = OpLoad %10 %19 97 %21 = OpConvertSToF %6 %20 98 %23 = OpAccessChain %18 %16 %17 %22 99 %24 = OpLoad %10 %23 100 %25 = OpConvertSToF %6 %24 101 %26 = OpAccessChain %18 %16 %17 %22 102 %27 = OpLoad %10 %26 103 %28 = OpConvertSToF %6 %27 104 %29 = OpAccessChain %18 %16 %17 %17 105 %30 = OpLoad %10 %29 106 %31 = OpConvertSToF %6 %30 107 %32 = OpCompositeConstruct %7 %21 %25 %28 %31 108 OpStore %9 %32 109 %35 = OpLoad %7 %9 110 OpStore %34 %35 111 OpStore %9 %37 112 %38 = OpLoad %7 %34 113 OpStore %9 %38 114 OpReturn 115 OpFunctionEnd 116END 117 118# uniforms for variant 119 120# _GLF_uniform_int_values 121BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 122 1 0 123END 124 125BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 126 127PIPELINE graphics variant_pipeline 128 ATTACH variant_vertex_shader 129 ATTACH variant_fragment_shader 130 FRAMEBUFFER_SIZE 256 256 131 BIND BUFFER variant_framebuffer AS color LOCATION 0 132 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0 133END 134CLEAR_COLOR variant_pipeline 0 0 0 255 135 136CLEAR variant_pipeline 137RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 138 139EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 140