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 bug found by the GraphicsFuzz project. 19 20# Short description: A fragment shader with vec2 in modulus fraction function 21 22# The test passes because the shader always writes the color red. 23 24SHADER vertex variant_vertex_shader PASSTHROUGH 25 26# variant_fragment_shader is derived from the following GLSL: 27# #version 320 es 28# precision highp float; 29# 30# precision highp int; 31# 32# layout(location = 0) out vec4 _GLF_color; 33# 34# void main() 35# { 36# vec2 uv = vec2(1.0, 1.0); 37# uv.x = (modf(1.0, uv.y)); 38# // uv.y == 1.0, uv.x == 0.0 39# if (uv.y > 0.0 && uv.x < 1.0) 40# { 41# _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); 42# } 43# else 44# { 45# _GLF_color = vec4(1.0); 46# } 47# } 48SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 49; SPIR-V 50; Version: 1.0 51; Generator: Khronos Glslang Reference Front End; 10 52; Bound: 38 53; Schema: 0 54 OpCapability Shader 55 %1 = OpExtInstImport "GLSL.std.450" 56 OpMemoryModel Logical GLSL450 57 OpEntryPoint Fragment %4 "main" %34 58 OpExecutionMode %4 OriginUpperLeft 59 OpSource ESSL 320 60 OpName %4 "main" 61 OpName %9 "uv" 62 OpName %34 "_GLF_color" 63 OpDecorate %34 Location 0 64 %2 = OpTypeVoid 65 %3 = OpTypeFunction %2 66 %6 = OpTypeFloat 32 67 %7 = OpTypeVector %6 2 68 %8 = OpTypePointer Function %7 69 %10 = OpConstant %6 1 70 %11 = OpConstantComposite %7 %10 %10 71 %12 = OpTypeInt 32 0 72 %13 = OpConstant %12 1 73 %14 = OpTypePointer Function %6 74 %17 = OpConstant %12 0 75 %19 = OpTypeBool 76 %22 = OpConstant %6 0 77 %32 = OpTypeVector %6 4 78 %33 = OpTypePointer Output %32 79 %34 = OpVariable %33 Output 80 %35 = OpConstantComposite %32 %10 %22 %22 %10 81 %37 = OpConstantComposite %32 %10 %10 %10 %10 82 %4 = OpFunction %2 None %3 83 %5 = OpLabel 84 %9 = OpVariable %8 Function 85 OpStore %9 %11 86 %15 = OpAccessChain %14 %9 %13 87 %16 = OpExtInst %6 %1 Modf %10 %15 88 %18 = OpAccessChain %14 %9 %17 89 OpStore %18 %16 90 %20 = OpAccessChain %14 %9 %13 91 %21 = OpLoad %6 %20 92 %23 = OpFOrdGreaterThan %19 %21 %22 93 OpSelectionMerge %25 None 94 OpBranchConditional %23 %24 %25 95 %24 = OpLabel 96 %26 = OpAccessChain %14 %9 %17 97 %27 = OpLoad %6 %26 98 %28 = OpFOrdLessThan %19 %27 %10 99 OpBranch %25 100 %25 = OpLabel 101 %29 = OpPhi %19 %23 %5 %28 %24 102 OpSelectionMerge %31 None 103 OpBranchConditional %29 %30 %36 104 %30 = OpLabel 105 OpStore %34 %35 106 OpBranch %31 107 %36 = OpLabel 108 OpStore %34 %37 109 OpBranch %31 110 %31 = OpLabel 111 OpReturn 112 OpFunctionEnd 113END 114 115 116BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 117 118PIPELINE graphics variant_pipeline 119 ATTACH variant_vertex_shader 120 ATTACH variant_fragment_shader 121 FRAMEBUFFER_SIZE 256 256 122 BIND BUFFER variant_framebuffer AS color LOCATION 0 123END 124CLEAR_COLOR variant_pipeline 0 0 0 255 125 126CLEAR variant_pipeline 127RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 128 129EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 130