1#!amber
2
3# Copyright 2018 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# A test for a bug found by GraphicsFuzz.
18
19# A fragment shader that uses struct initializers.
20# Derived from the following GLSL fragment shader.
21# We check that all pixels are red. The test passes because main does
22# some computation and then writes red to _GLF_color.
23
24# #version 310 es
25#
26# precision highp float;
27# precision highp int;
28#
29# layout(location = 0) out vec4 _GLF_color;
30#
31# struct S {
32#  bool b;
33# };
34#
35# S foo()
36# {
37#  if(true)
38#   {
39#      return S(true);
40#   }
41#   return S(true);
42# }
43# void main(void)
44# {
45#   foo();
46#   _GLF_color = vec4(1.0, 0.0, 0.0, 1.0);
47# }
48
49SHADER vertex variant_vertex_shader PASSTHROUGH
50
51SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
52; SPIR-V
53; Version: 1.0
54; Generator: Khronos SPIR-V Tools Assembler; 0
55; Bound: 23
56; Schema: 0
57               OpCapability Shader
58          %1 = OpExtInstImport "GLSL.std.450"
59               OpMemoryModel Logical GLSL450
60               OpEntryPoint Fragment %2 "main" %3
61               OpExecutionMode %2 OriginUpperLeft
62               OpSource ESSL 310
63               OpName %2 "main"
64               OpName %4 "S"
65               OpMemberName %4 0 "b"
66               OpName %5 "foo("
67               OpName %3 "_GLF_color"
68               OpDecorate %3 Location 0
69          %6 = OpTypeVoid
70          %7 = OpTypeFunction %6
71          %8 = OpTypeBool
72          %4 = OpTypeStruct %8
73          %9 = OpTypeFunction %4
74         %10 = OpConstantTrue %8
75         %11 = OpConstantComposite %4 %10
76         %12 = OpTypeFloat 32
77         %13 = OpTypeVector %12 4
78         %14 = OpTypePointer Output %13
79          %3 = OpVariable %14 Output
80         %15 = OpConstant %12 1
81         %16 = OpConstant %12 0
82         %17 = OpConstantComposite %13 %15 %16 %16 %15
83          %2 = OpFunction %6 None %7
84         %18 = OpLabel
85         %19 = OpFunctionCall %4 %5
86               OpStore %3 %17
87               OpReturn
88               OpFunctionEnd
89          %5 = OpFunction %4 None %9
90         %20 = OpLabel
91               OpSelectionMerge %21 None
92               OpBranchConditional %10 %22 %21
93         %22 = OpLabel
94               OpReturnValue %11
95         %21 = OpLabel
96               OpReturnValue %11
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