• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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 GraphicsFuzz.
19
20# Short description: A fragment shader that covers a specific const folding 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# precision highp float;
29#
30# layout(set = 0, binding = 0) uniform buf0 {
31#     vec2 injectionSwitch;
32# };
33#
34# layout(location = 0) out vec4 _GLF_color;
35#
36# void main()
37# {
38#     float f = sinh(724.322);
39#
40#     // Always true.
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);
45#     else
46#         _GLF_color = vec4(0);
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; 8
52; Bound: 43
53; Schema: 0
54               OpCapability Shader
55          %1 = OpExtInstImport "GLSL.std.450"
56               OpMemoryModel Logical GLSL450
57               OpEntryPoint Fragment %4 "main" %37
58               OpExecutionMode %4 OriginUpperLeft
59               OpSource ESSL 310
60               OpName %4 "main"
61               OpName %8 "f"
62               OpName %18 "buf0"
63               OpMemberName %18 0 "injectionSwitch"
64               OpName %20 ""
65               OpName %37 "_GLF_color"
66               OpMemberDecorate %18 0 Offset 0
67               OpDecorate %18 Block
68               OpDecorate %20 DescriptorSet 0
69               OpDecorate %20 Binding 0
70               OpDecorate %37 Location 0
71          %2 = OpTypeVoid
72          %3 = OpTypeFunction %2
73          %6 = OpTypeFloat 32
74          %7 = OpTypePointer Function %6
75          %9 = OpConstant %6 724.322021
76         %11 = OpTypeBool
77         %17 = OpTypeVector %6 2
78         %18 = OpTypeStruct %17
79         %19 = OpTypePointer Uniform %18
80         %20 = OpVariable %19 Uniform
81         %21 = OpTypeInt 32 1
82         %22 = OpConstant %21 0
83         %23 = OpTypeInt 32 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
90         %38 = OpConstant %6 1
91         %39 = OpConstant %6 0
92         %40 = OpConstantComposite %35 %38 %39 %39 %38
93         %42 = OpConstantComposite %35 %39 %39 %39 %39
94          %4 = OpFunction %2 None %3
95          %5 = OpLabel
96          %8 = OpVariable %7 Function
97         %10 = OpExtInst %6 %1 Sinh %9
98               OpStore %8 %10
99         %12 = OpLoad %6 %8
100         %13 = OpIsInf %11 %12
101         %14 = OpLogicalNot %11 %13
102               OpSelectionMerge %16 None
103               OpBranchConditional %14 %15 %16
104         %15 = OpLabel
105         %26 = OpAccessChain %25 %20 %22 %24
106         %27 = OpLoad %6 %26
107         %29 = OpAccessChain %25 %20 %22 %28
108         %30 = OpLoad %6 %29
109         %31 = OpFOrdLessThan %11 %27 %30
110               OpBranch %16
111         %16 = OpLabel
112         %32 = OpPhi %11 %13 %5 %31 %15
113               OpSelectionMerge %34 None
114               OpBranchConditional %32 %33 %41
115         %33 = OpLabel
116               OpStore %37 %40
117               OpBranch %34
118         %41 = OpLabel
119               OpStore %37 %42
120               OpBranch %34
121         %34 = OpLabel
122               OpReturn
123               OpFunctionEnd
124END
125
126# uniforms for variant
127
128# injectionSwitch
129BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA
130 0.0 1.0
131END
132
133BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
134
135PIPELINE 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
141END
142CLEAR_COLOR variant_pipeline 0 0 0 255
143
144CLEAR variant_pipeline
145RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
146
147EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255
148