3 # Copyright 2020 Google LLC
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
9 # http://www.apache.org/licenses/LICENSE-2.0
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.
18 # A test for a coverage-gap found by GraphicsFuzz.
20 # Short description: A fragment shader that covers a specific const folding path
22 # The test passes because the shader always writes red.
24 SHADER vertex variant_vertex_shader PASSTHROUGH
26 # variant_fragment_shader is derived from the following GLSL:
28 # precision highp float;
30 # layout(set = 0, binding = 0) uniform buf0 {
31 # vec2 injectionSwitch;
34 # layout(location = 0) out vec4 _GLF_color;
38 # float f = sinh(724.322);
41 # // injectionSwitch.x == 0.0.
42 # // injectionSwitch.y == 1.0.
43 # if (isinf(f) || injectionSwitch.x < injectionSwitch.y)
44 # _GLF_color = vec4(1, 0, 0, 1);
46 # _GLF_color = vec4(0);
48 SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
51 ; Generator: Khronos Glslang Reference Front End; 8
55 %1 = OpExtInstImport "GLSL.std.450"
56 OpMemoryModel Logical GLSL450
57 OpEntryPoint Fragment %4 "main" %37
58 OpExecutionMode %4 OriginUpperLeft
63 OpMemberName %18 0 "injectionSwitch"
65 OpName %37 "_GLF_color"
66 OpMemberDecorate %18 0 Offset 0
68 OpDecorate %20 DescriptorSet 0
69 OpDecorate %20 Binding 0
70 OpDecorate %37 Location 0
72 %3 = OpTypeFunction %2
74 %7 = OpTypePointer Function %6
75 %9 = OpConstant %6 724.322021
77 %17 = OpTypeVector %6 2
78 %18 = OpTypeStruct %17
79 %19 = OpTypePointer Uniform %18
80 %20 = OpVariable %19 Uniform
82 %22 = OpConstant %21 0
84 %24 = OpConstant %23 0
85 %25 = OpTypePointer Uniform %6
86 %28 = OpConstant %23 1
87 %35 = OpTypeVector %6 4
88 %36 = OpTypePointer Output %35
89 %37 = OpVariable %36 Output
92 %40 = OpConstantComposite %35 %38 %39 %39 %38
93 %42 = OpConstantComposite %35 %39 %39 %39 %39
94 %4 = OpFunction %2 None %3
96 %8 = OpVariable %7 Function
97 %10 = OpExtInst %6 %1 Sinh %9
100 %13 = OpIsInf %11 %12
101 %14 = OpLogicalNot %11 %13
102 OpSelectionMerge %16 None
103 OpBranchConditional %14 %15 %16
105 %26 = OpAccessChain %25 %20 %22 %24
107 %29 = OpAccessChain %25 %20 %22 %28
109 %31 = OpFOrdLessThan %11 %27 %30
112 %32 = OpPhi %11 %13 %5 %31 %15
113 OpSelectionMerge %34 None
114 OpBranchConditional %32 %33 %41
126 # uniforms for variant
129 BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA
133 BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
135 PIPELINE graphics variant_pipeline
136 ATTACH variant_vertex_shader
137 ATTACH variant_fragment_shader
138 FRAMEBUFFER_SIZE 256 256
139 BIND BUFFER variant_framebuffer AS color LOCATION 0
140 BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 0
142 CLEAR_COLOR variant_pipeline 0 0 0 255
144 CLEAR variant_pipeline
145 RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
147 EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255