• 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 the GraphicsFuzz project.
19
20# Short description: A fragment shader that covers a specific APFloat 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#
29# precision highp int;
30#
31# precision highp float;
32#
33# layout(location = 0) out vec4 _GLF_color;
34#
35# void main()
36# {
37#     vec2 v1 = vec2(1.0, -1.0);
38#
39#     // v2 becomes [1.0, 0.0].
40#     vec2 v2 = step(0.4, sinh(v1));
41#     _GLF_color = vec4(v2.x, v2.y, v2.y, v2.x);
42# }
43SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
44; SPIR-V
45; Version: 1.0
46; Generator: Khronos Glslang Reference Front End; 10
47; Bound: 35
48; Schema: 0
49               OpCapability Shader
50          %1 = OpExtInstImport "GLSL.std.450"
51               OpMemoryModel Logical GLSL450
52               OpEntryPoint Fragment %4 "main" %21
53               OpExecutionMode %4 OriginUpperLeft
54               OpSource ESSL 310
55               OpName %4 "main"
56               OpName %9 "v1"
57               OpName %13 "v2"
58               OpName %21 "_GLF_color"
59               OpDecorate %21 Location 0
60          %2 = OpTypeVoid
61          %3 = OpTypeFunction %2
62          %6 = OpTypeFloat 32
63          %7 = OpTypeVector %6 2
64          %8 = OpTypePointer Function %7
65         %10 = OpConstant %6 1
66         %11 = OpConstant %6 -1
67         %12 = OpConstantComposite %7 %10 %11
68         %14 = OpConstant %6 0.400000006
69         %19 = OpTypeVector %6 4
70         %20 = OpTypePointer Output %19
71         %21 = OpVariable %20 Output
72         %22 = OpTypeInt 32 0
73         %23 = OpConstant %22 0
74         %24 = OpTypePointer Function %6
75         %27 = OpConstant %22 1
76          %4 = OpFunction %2 None %3
77          %5 = OpLabel
78          %9 = OpVariable %8 Function
79         %13 = OpVariable %8 Function
80               OpStore %9 %12
81         %15 = OpLoad %7 %9
82         %16 = OpExtInst %7 %1 Sinh %15
83         %17 = OpCompositeConstruct %7 %14 %14
84         %18 = OpExtInst %7 %1 Step %17 %16
85               OpStore %13 %18
86         %25 = OpAccessChain %24 %13 %23
87         %26 = OpLoad %6 %25
88         %28 = OpAccessChain %24 %13 %27
89         %29 = OpLoad %6 %28
90         %30 = OpAccessChain %24 %13 %27
91         %31 = OpLoad %6 %30
92         %32 = OpAccessChain %24 %13 %23
93         %33 = OpLoad %6 %32
94         %34 = OpCompositeConstruct %19 %26 %29 %31 %33
95               OpStore %21 %34
96               OpReturn
97               OpFunctionEnd
98END
99
100
101BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
102
103PIPELINE graphics variant_pipeline
104  ATTACH variant_vertex_shader
105  ATTACH variant_fragment_shader
106  FRAMEBUFFER_SIZE 256 256
107  BIND BUFFER variant_framebuffer AS color LOCATION 0
108END
109CLEAR_COLOR variant_pipeline 0 0 0 255
110
111CLEAR variant_pipeline
112RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
113
114EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255
115